• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    wheel speed sensor mounting frame. to make deformation of a pulse ring difficult in view of the possibility of a brake disc being thermally deformed at the time of braking, so that the pulse ring is deformed when the brake disc and pulse ring are rigidly mounted fixing themselves together. a pulse ring (20) includes a portion to be detected (21) and pulse ring mounting portions (23) that project radially outwardly from an outer peripheral portion of the portion to be detected (21) . the portion to be detected (21) and the pulse ring mounting portion (23) are arranged to form continuous flat surfaces, and the pulse ring (20) is rigidly mounted to a mounting boss (50) of a wheel (1b) using a bolt (10) securing a brake disc (4) and the pulse ring (20) to each other in a state where the pulse ring (20) overlaps the mounting portion of brake disc (4b). even when the brake disc (4) deforms thermally at the braking moment, so that the pulse ring mounting portion (23) is pushed radially outwardly, the portion to be detected (21) and the mounting portion of pulse ring (23) are arranged in the same plane thus forming the continuous planar surfaces and thus the portion to be detected (21) is hardly twisted and thus the deformation of the portion to be detected (21) it is hardly generated as a whole.
    公开号:BR102012018667A2
    申请号:R102012018667-5
    申请日:2012-07-26
    公开日:2018-02-06
    发明作者:Mikura Keita；Kofuji Kenji
    申请人:Honda Motor Co., Ltd.；
    IPC主号:
    专利说明:

    (54) Title: WHEEL SPEED SENSOR ASSEMBLY STRUCTURE (51) Int. CL: B60T 8/176; F16D 65/00 (30) Unionist Priority: 07/31/2011 JP 2011167898 (73) Holder (s): HONDA MOTOR CO., LTD.
    (72) Inventor (s): KEITA MIKURA; KENJI KOFUJI (74) Attorney (s): DANNEMANN, SIEMSEN, BIGLER & IPANEMA MOREIRA (57) Summary: WHEEL SPEED SENSOR ASSEMBLY STRUCTURE. To make the deformation of a pulse ring difficult in view of the possibility that a brake disc will be thermally deformed at the time of braking, so that the pulse ring will be deformed when the brake disc and the pulse ring are rigidly assembled by fixing each other. A pulse ring (20) includes a portion to be detected (21) and pulse ring assembly portions (23) that project radially outwardly from an outer peripheral portion of the portion to be detected (21) . The portion to be detected (21) and the pulse ring mounting portion (23) are arranged to form continuous flat surfaces, and the pulse ring (20) is rigidly mounted on a mounting boss (50). a wheel (lb) using a screw (10) securing a brake disc (4) and the pulse ring (20) to each other in a state where the pulse ring (20) overlaps the mounting portion of brake disc (4b). Even when the brake disc (4) deforms thermally at the time of braking, so that the pulse ring mounting portion (23) is pushed (...)
    Higher
    4b
    1/32
    DESCRIPTION REPORT OF THE INVENTION STRUCTURE
    WHEEL SPEED SENSOR ASSEMBLY ”.
    Technique Field
    The present invention relates to the wheel speed sensor mounting structure and, more particularly, the wheel speed sensor mounting structure, where a pulse ring that forms a part of the wheel speed sensor is rigidly mounted on a wheel when connecting to a brake disc, and the pulse ring is hardly deformed, even when the brake disc is thermally deformed due to the special brake, ii
    Background of the Invention. . I
    It is known the structure where a brake disc for a disc brake and a D-ring and pulses that constitute a part of a wheel speed sensor are already mounted on a motorcycle wheel, or similar, by fixation. |
    The wheel speed sensor is provided to measure a wheel speed that is necessary to control an ABS (!
    Anti-Gravity Brake), or similar, and the wheel speed sensor includes a pulse ring that is fully rotated with the wheel, and a sensor body portion that generates pulse signals that correspond to a rotational speed of the pulse ring.
    As a conventional example of a motorcycle that assembles such a pulse ring on this, for example, a motorcycle described in patent document jl. In this conventional example, a brake disc and a pulse ring are attached to a motorcycle wheel by attaching the brake disc and pulse ring to a spokes mounted to the spokes. Here, the brake disc for the brake use is connected to the boss by means of a graduated collar, and a disc spring for floating assembly is arranged between the graduated collar and the brake disk. A lowered portion of accommodation to accommodate a screw head is formed on the graduated collar, in order to prevent the screw head of the screw that holds the brake disc and the pulse ring from protruding widely to
    Ϊ
    2/32 off. (
    Due to such a constitution, both the brake disc and the pulse ring can be mounted on the wheel in a compact size.
    In addition, by adopting the floating assembly mentioned above, the stable positional relationship can be maintained between the sensor body portion and the pulse ring.
    That is, the brake disc is raised to a high temperature due to the friction generated between the brake disc and a brake caliper when braking a vehicle, so that the brake disc is thermally expanded. Due to such thermal expansion, the brake disc is deformed, so that the pulse ring that is connected to the wheel along with the brake disc is also deformed. As a result, there is a possibility that the positional relationship between the sensor body portion that is attached to a vehicle body side and the pulse ring that is mounted on a wheel side in an integrally rotating manner will be changed.
    However, due to the floating mounting structure mentioned above, only the brake disc extends simply in the radial direction and the pulse ring is not deformed by the thermal expansion of the brake disc and, therefore, the stable positional relationship can be maintained between the sensor body portion and the pulse ring.
    This maintenance of the stable positional ratio is required to maintain accuracy and high wheel speed detection.
    In addition, as shown in figure 10 and figure 11, it is also known that the brake disc fixing structure where a brake disc and a pulse ring are rigidly mounted on a wheel without adopting the above mentioned floating mount structure . The rigid mounting structure is required to reduce the number of parts and to achieve cost savings compared to the floating assembly structure. In figure 10, a disc brake disc 104 and a pulse ring 120 are attached to a motorcycle wheel 101 in a state where the brake disc 104 and pulse ring 120 are attached to a boss 150 that is formed in spokes 108. Brake disk 104 includes an annular brake portion 'ί'ι
    3/32
    104a and a brake disc side mounting portion 104b that is formed in an inner peripheral portion of the brake portion 104a, and through holes 140 are formed in the brake disk side mounting portion 104b.
    Also, as shown in figure 11, which is a perspective view of the pulse ring 120, the pulse ring 120 includes a portion to be detected 12l | which is detected by a sensor body portion 131, and pulse ring side biting portions 123 projecting radially outwardly from an outer peripheral portion of the portion to be detected 121. The detection holes 122 they are formed in the portion to be detected 121 along the entire circumference in an equidistant manner. A flangp 126 that is bent inward at an approximately right angle is integrally formed on an inner peripheral side edge portion of the portion to be detected 121. Flange 126 is continuously formed along the entire circumference of the portion to be detected detected 121.
    The pulse ring side mounting portion 123 is folded into a root portion 123a where the pulse ring side mounting portion 123 is joined to the portion to be detected forming 121, thereby an inclined portion 123b that extends inwardly, that is, in the direction towards the center of rotation C in an inclined manner, and the inclined portion 123b is folded radially outwardly in an outer folded back portion 123c thereby forming a seat portion 125, and a through hole 124 is formed in the seat portion 125. A position of the seat portion 125 is arranged more internally in the direction toward the center of rotation C than a position of a distal end of the flange 126.
    The flange 126 plays a role of increasing the rigidity of the entire pulse ring 120 to a relatively high value along with the pulse ring side mounting portions 123 having the folded structure. ί
    Then, the seat portion 125 is placed on a boss surface 150, the disc side mounting portion of
    4/32 brake 104b of the brake disc 104 overlaps the seat portion 125, the through holes 124, 140 are aligned with the threaded holes 151 formed in the boss 150, and the stepped screws 110 are connected to the boss 150 and therefore the portion brake disc side mounting assembly 104b and the pulse ring side mounting portion 123 are attached together to the boss 150 by fixing and thus are rigidly mounted to the boss. Here, the portion to be detected 121 is arranged next to a portion of sensor body 131 with a predetermined distance between them, so that when the portion to be detected 121 is rotated, the detection hole 122 passes through an area close to a distal end of the sensor body portion 1131.
    Related Technique Document
    Patent Document
    Patent Document 1 JP-A-2010-270888
    Summary of the Invention
    Problems to be solved by the invention
    Considering the case in which the rigid mounting structure mentioned above is adopted, in a normal braking operation that is assumed in general travel, the brake disc 104 is raised to a high temperature (for example, approximately 450 ° C) due to the heat of friction generated mainly in a friction portion of it with a brake caliber, and expands thermally.
    Consequently, the seat portion 125 of the pulse ring side mounting portion 123 is pulled radially outward by means of screw 110. However, as described above, the pulse ring 120j as a whole, has relatively stiffness high and therefore the pulse ring 120 can withstand a tensile force which is generally assumed to be generated without being deformed.
    Consequently, the positional relationship between the portion to be detected 121 and the sensor body portion 131 is maintained within a predetermined range even in a rigid mounting state.
    On the other hand, when carrying out a
    5/32 special brake, for example, in a special brake state, where the brake disc 104 is raised to an extremely high temperature (for example, approximately 600 ° C or more) due to extremely continuous braking!
    bare, or similar, there may be a case where the pulse ring 120 which is rigidly mounted by fixing together with the brake disc 104 is deformed by the thermal expansion of the brake disc 104.
    That is, when the brake disk 104 which is raised to an i
    extremely high temperature under such a special brake state is very thermally deformed by thermal expansion, a large tensile force directed in the radially outward direction is applied to the screw 110 from the brake disk 104. Consequently, in the ring of pulses 120 which is rigidly mounted by fixing together with the brake disc 4 using the screw 110, the seat gate 125 is strongly pulled in the radially outward direction indicated by an arrow A in figure 11.
    Such a large pull forge acts on the portion to be detected 121 from the pulse ring side mounting portion 123 and is intended to increase the diameter of the portion to be detected 121. However, the portion to be detected 121 has high rigidity due to the flange 126 formed in the edge portion of the inner peripheral side thereof, and therefore, as shown in an enlarged portion in figure 11, a resistance force against such a pulling force is generated in an inner peripheral portion of the portion to be detected 121 in the opposite direction , that is, in the radially internal direction, as indicated by an arrow D. In addition, there is a difference h in height between the portion to be detected 121 and the seat portion 125 of the pulse ring side mounting portion 123 due to the inclined portion 123b and, therefore, the portion to be detected 121 is positioned offset from the seat portion 125. Consequently, as indicated by p or an arrow B, the portion to be detected 121 is twisted due to the flexion deformation which makes the portion to be detected 121 tilted inward in the direction towards the center of rotation C and thus a large tensile force generated by the deformation brake disc 104 which is raised to an extremely high temperature under a special brake state is
    6/32 absorbed.
    When such a twist is generated in the portion to be detected 121, the portion to be detected 121 is separated from the sensor body portion 131 and, therefore, a possibility arises that the positional relationship between the master body portion and the portion a detected 121 is outside a predetermined range.
    However, while maintaining the high wheel speed detection accuracy of the wheel speed sensor 130, the positional relationship between the sensor body portion 131 attached to a vehicle body side and the portion to be detected 121 of the ring pulse 120 mounted on a 10lb wheel side in a fully rotating manner is important. Consequently, there may be a case where it is necessary to maintain such a positional relationship within the predetermined range even in such a special state.
    Consequently, an objective of the present invention is to maintain the wheel speed detection accuracy mentioned above by making the pulse ring 120 difficult to deform following the thermal deformation of the brake disc 104 even when the brake disc 104 and the pulse ring 120 are properly assembled together by fixing and also under the special brake state mentioned above.
    Means to Solve the Problem
    To overcome the disadvantages mentioned above, the invention described in claim 1 is directed to a wheel speed sensor assembly structure that includes:
    a fork (5) that swivels a wheel (1b);
    a brake disc (4) which is mounted on a lateral surface of the wheel (1b) in a fully rotating manner and in which the braking is applied by a brake caliper (3); and wheel speed sensor (30) to detect a rotational speed of the wheel (1b), in which the wheel speed sensor (30) includes: a pulse ring (20) which is integrally rotated with the wheel (1b) ; and a sensor body portion (31) which is arranged next to an annular portion to be detected
    7/32 ί
    (21) formed on the pulse ring (20) and generates pulse signals that correspond to a rotational speed of the pulse ring (20), and the pulse ring (20) is mounted on one side of the wheel (1b), and the sensor body portion (31) is mounted on a fork side (5), where the pulse ring (20) includes pulse ring mounting portions (23) that project radially outwardly from the portion to be detected (21), the pulse ring mounting portion (23) is connected to the side surface of the wheel (1b) along with a brake disc mounting portion (4b) formed on the brake disc (4) using a fastener (10) in a state in which the pulse ring mounting portion (23) overlaps the brake disk probe portion (4b), and a seat portion (25) that is connected by the element fixing points (10) and the portion to be detected 21 of the pulse ring assembly portion (23) are arranged in the same plane.
    The envy described in claim 2 is, in claim 1, characterized by the fact that the pulse ring (20) includes, as an integral part thereof, a rib (26) which is formed by bending a side edge portion external periphery of the portion to be detected (21) along an external periphery of the portion to be detected (21).
    The invention described in claim 3 is, in claim 1 or 2, characterized by the fact that the structure includes a gauge support (12) that is mounted on the fork (5) and supports the gauge (3), the mounting portion of brake disc (4b) and pulse ring mounting portion (23) are arranged in a position where the brake disc mounting portion (4b) and pulse ring mounting portion (23) partially overlap an internal side of the gauge support (12) when seen in a side view at the time of rotation, respectively, and a lowered accommodation portion (43) which is arranged a lower step with an external surface of the brake portion (4a ) is formed in the brake disc mounting portion (4b) of the brake disc (4) at!
    i
    8/32 a portion of the brake disc mounting portion (4b) that overlaps the seat portion (25) of the pulse ring mounting portion (23), and the seat portion (25) of the brake mounting portion pulse ring (23) is accommodated in the lowered housing portion (43).
    The invention described in claim 4 is, in claim 3, characterized by the fact that the lowered accommodation portion (43) is formed by countersinking, and the lowered accommodation portion (43) is opened towards a side where the ring of pulses (20) is positioned.
    The invention described in claim 5 is, in any one of claims 1 to 4, characterized by the fact that the structure includes the fork!
    (5) mounting the gauge bracket (12) as an element on the vehicle body side and a brake hose (18) extending upwards from the brake gaugej (3) behind the fork (5), the brake caliper (3) is arranged behind the fork (5) when seen in a side view, the sensor body portion (31) is arranged between the fork (5) and the brake caliper (3), and
    I a sensor cable (33) that is connected to the sensor body portion (31) extends upwardly within the brake caliper (3) in the width direction of the vehicle from the sensor body portion (31) to the along the fork (5), is supported by a clamp (34) which is mounted on the gauge holder (12), is folded back from the clamp (34), extends backwards after passing through an area above the gauge of the brake (3), it is additionally folded to αηφ, and is arranged on an upper side of the vehicle together with the brake hose (18).
    Advantageous Effect of the Invention
    According to the invention described in claim 1, even when the brake disc expands thermally due to the special brake, so that the pulse ring is pulled out radially in a state where the brake disc and the pulse ring are rigidly mounted on!
    rotates by attaching the brake disc and pulse ring to each other, the seat portion gives the pulse ring assembly portion and the portion to be
    9/32 detected are arranged in the same plane and, therefore, the deformation, such as, the torsion of the worsening to be detected can be suppressed as much as possible. :
    Consequently, the positional relationship between the portion to be detected and the sensor body portion is hardly much changed and therefore the predetermined distance between the portion to be detected on the pulse ring and the sensor body portion can be easily maintained even in a rigid mounting state.
    According to the invention described in claim 2, the rib is integrally formed in the portion to be detected from the pulse ring by flexing the outer peripheral side edge portion of the portion to be detected.
    detected and, therefore, the brake disc is disposed outside the pulse ring and the rib is disposed on an external peripheral side of the portion to be detected.
    i
    Due to such a constitution, at the moment of the assembly of the pulse ring, the nerve structure is formed between a fixation portion of the pulse ring assembly portion attached to the wheel and the portion to be detected, so that the rigidity of the portion to be detected is increased. Consequently, even when the portion to be detected is pulled radially outwardly from the fixing portion of the pulse ring mounting portion attached to the wheel, a amount of deformation of the pulse ring may be less, so that the predetermined distance between the!
    portion to be detected from the pulse ring and the sensor body portion can be easily maintained.
    Furthermore, even when an external force is applied to the pulse ring, the pulse ring is hardly deformed.
    According to the invention described in claim 3, the fastening element which secures the pulse ring mounting portion and the mounting portion; of the brake disc to each other in a state where the pulse ring mounting portion and the brake disk mounting portion overlap each other | to the others it has the head portion of it projected outwards in the width of the vehicle. Consequently, in the constitution where a part of the brake disc mounting portion and a part of the
    10/32 pulse ring assembly portion overlap the gauge bracket, it is necessary to take into consideration, so that the head portion of the fastening element does not interfere with the bearing bracket in the vehicle's wide direction, when observed in a side view at the time of rotation. ;
    However, the brake disc mounting portion is provided by forming the recessed housing portion that corresponds to the seat portion of the pulse ring mounting portion on the brake disc and therefore the seat portion of the mounting portion pulse ring is accommodated in the lowered accommodation portion when the seat portion overlaps the brake disc mounting portion. Due to such a constitution, when the pulse ring mounting portion and the brake disio mounting portion are attached by the fastener, a quantity of the head portion of the fastener in the width direction of the vehicle can be smaller, so that a gap between the gauge support and the fastening element can be easily ensured.
    According to the invention described in claim 4, the lowered accommodation portion that constitutes the brake disc mounting portion is opened towards the pulse ring side. Consequently, by causing the seat portion of the pulse ring assembly portion to overlap the brake disc assembly portion, even when the pulse ring assembly portion is flat in shape, the ring assembly portion of wrists can overlap the disc mounting portion of the brake without being bent. Consequently, the pulse ring assembly portion and the portion to be detected of the pulse ring can be easily arranged in the same plane.
    In accordance with the invention described in claim 5, the sensor body portion of the wheel speed sensor is disposed between the fork and the brake caliper and the sensor cable is disposed within the brake caliper í in the direction of the vehicle. Consequently, the sensor wheel can be protected by the brake caliper and the fork. In addition, the sensor cable!
    it does not protrude stops out from the brake gauge and therefore the cable
    11/32 sensor is hardly caught by an obstacle. Additionally, the sensor cable extends upwards along with the brake hose which has a
    I 'relatively large diameter and therefore the oscillation of the sensor cable can be small ·
    I
    Brief Description of Drawings
    I
    I
    Figure 1 is a right side view referring to a front wheel portion of a motorcycle, according to an embodiment.
    Figure 2 is an enlarged view of a brake portion shown in Figure 1.
    Figure 3 is a cross-sectional view taken along a line 3-3 in Figure 2.
    Figure 4 is a cross-sectional view taken along a line 4-4 in Figure 2.
    Figure 5 is a cross-sectional view taken along a line 5-5 in Figure 2.
    Figure 6 is a perspective view of a front wheel on a PRtarln pm nnp nm rii «» on the cold river or an oiíror anolio «a mounted» on the
    VIIII l »VA VIVI III VI VIV * VIIII VII wl V * 1 VI VIVI 11 V * IVI V * VIIII VA i IV> 1 VIV * VIVI i vl VIvl w VA VI IIIVII I I.VA VIVI v * II VA front wheel .
    Figure 7 is an anterior view of the brake disc (a face of the brake disc that faces a right side of a vehicle body in a state where the brake disc is mounted on the vehicle body that is there as a front face).
    Figure 8 is an anterior view of the pulse ring (one face of the pulse ring that faces the right side of the vehicle body in a state where the pulse ring is mounted on the vehicle body that is fitted as a face forward).
    Figure 9 is a cross-sectional view taken along a line 9-9 in Figure 8.
    Figure 10 is a cross-sectional view of a wheel, from i
    according to the prior art.
    Figure 11 is a perspective view and a view to explain the mode of operation of a pulse ring, according to the previous technique. ;
    Mode for Carrying Out the Invention
    Hereinafter, a modality where the present invention is applied to a front wheel of a motorcycle which is an example of one!
    saddle-mount vehicle is explained in conjunction with the drawings. Here, in the explanation given hereafter in this document, the front and rear directions, the right and left directions, and the like, are identical to the directions of a vehicle that is explained hereinafter in this document, except where otherwise specified . Furthermore, in the drawings used for the explanation made hereinafter in this document, a front side of the vehicle is indicated by an arrow FR, a right side of the vehicle is indicated by an arrow LH, and an upper side of the vehicle is indicated; by an UP arrow in respectively appropriate positions. Here, a vehicle's width direction is equal to the vehicle's side direction. Furthermore, déntro means that a desired portion is positioned in!
    one side closer to the center of the vehicle than a portion that becomes the!
    reference, and outside means a side opposite to inside.
    i
    First, the schematic constitution that refers to a front wheel on a motorcycle and portions around the front wheel is mainly explained together with figure 1 and figure 2. Figure 1 is a right side view showing a wheel front 1, and figure 2 is a view showing a front wheel brake 2 in an enlarged manner. In these drawings, the front wheel brake 2 is a disc brake that includes a brake caliper 3 and a brake disc 4, and the brake caliper 3 is mounted on a front fork 5. The brake disc 4 is integrally rotated with wheel 1b, and brake caliper 3 applies braking to a brake portion 4a of i
    brake disc 4. ί
    The front forks 5 are provided as a left and right pair, and each front fork 5 has the telescopic structure consisting of an inner tube 5a and an outer tube 5b. In this embodiment, the front fork 5 is a front fork of the assembly type, where the outer tube 5b is positioned below the inner tube 5a. The front fork S can be a fork
    13/32 front of the inverted type, where an inner tube and an outer tube are arranged upside down.
    The front wheel 1 is arranged between the left and right front forks 5, and is swiveled on an axis 6 which is supported between the lower end portions of the left and right outer tubes 5b. :
    Emboifa not shown in the drawing, the upper portions of the front forks 5 are swiveled on a vehicle body, 15 and are rotated by a steering cable.
    The front wheel 1 consists of a tire 1a and the wheel 1b that supports the tire 1a. The symbol 1c indicates a front fender. The front fender 1c is supported on the outer tubes 5b and covers the front wheel i
    from above. In figure 2, the front fender 1 c is omitted.
    The wheel 1b consists of a hub 7, spokes 8 and a rim 9, and is a cast wheel manufactured by integrally forming these parts by casting, or the like.
    Hub 7 constitutes a central portion of wheel 1b and is a portion that supports axle 6 in a state where axle 6 penetrates hub 7 in the vehicle's wide direction. The several (five in this mode) spokes 8 extend outwardly in the radial direction from hub 7, and the extension ends of spokes 8 are connected to an inner peripheral portion of rim 9. The spoke 8 is bifurcated on one side radially external from this close to the rim 9, thus forming an approximately Y shape, when viewed in a side view. Tire 1a is mounted on an outer peripheral side of rim 9.
    On a right side surface of the vehicle body of the wheel 1 b, the brake disc 4 and a ring of pulses 20 are attached to a mounting boss (later described) for spokes 8 using a screw 10. The brake disc 4 is concentrically disposed with the wheel 1b, and is positioned in an intermediate portion between the axis 6 and the rim 9 in the radial direction. The pulse ring 20 constitutes, along with a portion of sensor body 31 i
    located around the brake caliper 3, a speed sensor
    14/32 wheel 30. The wheel speed sensor 30 generates pulse signals that correspond to a rotational speed of wheel 1b to detect a wheel speed, and the details of the wheel speed sensor 30 are described below.
    !
    As shown in figure 6 which is a perspective view showing a state in which the brake disc 4 and the pulse ring 20 are mounted on the wheel 1b in a rigid assembly fixing the brake disc 4 and the pulse ring 20 to each other at wheel 1 b, the pulse ring 20 is an element which is arranged radially within the brake disc 4 and concentric with the brake disc 4. The pulse ring 20 includes a ring-shaped portion to be detected 21 which has a diameter less than a diameter of the brake disc 4 and ^ several (five in this embodiment) pulse ring assembly portions | 23 projecting outwardly in the radial direction from an outer peripheral portion of the portion a be detected 21.
    The pulse ring mounting portions 23 are overlaid with the outer sides of the brake disc mounting portions 4b that are formed on an inner peripheral portion of the brake disc 4, and the pulse ring mounting portions 23 and the portions disk mount!
    brake 4b are fixed to the brake disc 4 using screws 10.
    As shown in figure 5, an assembly boss 50 is integrally formed in an intermediate portion of each radius 8 in the radial direction that projects towards a right side of the vehicle body in the direction of vehicle width. A female threaded hole 51 extending inwardly in the width of the vehicle from a projection end of the mounting boss 50 is formed in the mounting boss 50. The brake disc 4 and the pulse ring 20 are fixed between to the boss 50 through the fixation using the screws 10.
    Radius 8 that is approximately Y-shaped includes one!
    bifurcated portion where radius 8 is bifurcated in the radially outward direction and a single body portion where radius 8 is not bifurcated, and mounting boss 50 is formed on the single body portion in a position close to a start portion of bifurcation. The various (five, in this modality)
    15/32 mounting bosses 50 are formed on a side surface of the wheel 1b in an enji state that the mounting bosses 50 are arranged in the same circle.
    The screw 10 has, as shown in an enlarged view, a head portion 10a which is formed in a relatively flat shape with a thickness and, in addition, a work tool hole (hexagonal hole) 10b is formed in the head portion 10a .
    In a central portion of the hub 7, an axle retaining portion 53 in which an axle bore 52 is formed in a penetrating manner in the width direction of the vehicle is formed. Axis 6 passes through axis hole 52 from one side to the other side. Axis 6 passes through a through hole 54a preliminarily formed in one between a pair of left and right outer tubes 5b (the outer tube on a left side of the vehicle in this embodiment), is inserted into axle hole 52 and additionally passes through through the shaft bore 52, and a male threaded portion 6a formed at a distal end portion of the shaft 6 projects to the other side of the shaft bore 52 and is inserted into a through hole 54b formed in the other pipe 5b (the tiibo external on a right side of the vehicle in this mode) and, additionally, it is fixed to a female threaded portion formed in the through hole 54b.
    The shaft 6 is pivotally supported by a pair of left and right ball bearings 55a, 55b within the shaft retaining portion 53. The respective ball bearings 55a, 55b are positioned by collars 56a, 56b and 56c.
    As shown in detail in figure 2, the brake gauge 3 is mounted on the outer tube 5b (front fork 5) by means of a 12 gauge bracket that is approximately L-shaped when viewed in a side view. The brake disc mounting portion 4b and the pulse ring mounting portion 23, as can be clearly understood from a position of the screw 10 which is an element for connecting these mounting portions together, are respectively arranged in a position where part of the brake disc mounting portion 4b
    16/32 and a portion of the pulse ring mounting portion 23 overlap on an inner side of the 12 gauge support when viewed in a side view at the time of rotation.
    Two mounting portions 13a, 13b are integrally formed on a vehicle body rear side surface of the outer tube 5b in a manner projected in an oblique direction downwards and backwards in a vertically spaced manner from each other, and the gauge support 12 is mounted on respective inner sides of two mounting portions 13a, 13b in an overlapping manner.
    The 12 gauge support includes, as integral parts thereof, an upper portion 12a that extends in the vertical direction approximately along a rear side surface of the vehicle body of the outer tube 5b and a lower portion 12b that is folded from a lower part of the upper portion 12a and extends in an oblique direction down and back on an anterior side of the brake gauge 3. The upper portion 12a has an upper end portion of this connected to the mounting portion 13a using a screw 14a, and has a lower end portion thereof which is contiguously formed with the lower portion 12b in a folded manner connected to the mounting portion 13b using a screw 14b.
    Brake gauge 3 is a sliding pin type brake gauge.
    The brake caliber; 3 is supported on the upper portion 12a 25 of the gauge support 12 by a main pin 15a, and is supported on the lower portion 12b by a sliding pin 15b. The brake gauge 3 is slidably movable in the axial direction of the sliding pin 15b. The symbol 16 indicates a sus25 pin, and the suspending pin 16 supports a brake pad (later described).
    The brake gauge 3 of this modality is a three-pot type brake gauge. which has three pistons 17a, 17b and 17c used in an ABS and a CBS (front and rear interlocking brake system). The front and rear pistons 30a 17a and 17c are operated by a liquid pressure through a brake hose 18 connected to an ABS front wheel. The central piston 17b is operated by a pressure of liquid through a
    17/32 brake hose 19 which is connected to ABS and CBS.
    The brake hose 18 is a liquid pressure passage that communicates with a main cylinder (not shown in the drawing) that is operated from an interlocked with a brake lever (not shown in the drawing) through the ABS, while the hose Brake 19 is a liquid pressure passage that communicates with a main cylinder (not shown in the drawing) that is operated interlocked with a brake pedal (not shown in the drawing) via CBS. These liquid pressure passages from two systems are connected to the brake gauge 3, and are communicated with liquid chambers (later described) formed inside the brake gauge 3 respectively. In each liquid chamber, a piston that corresponds to the liquid chamber is disposed in a state in which the piston faces the liquid chamber, and an operating liquid at each passage of liquid pressure is supplied to the liquid chamber. corresponding and therefore the respective pistons can be individually operated.
    In a portion of the lower portion 12b of the gauge support 12 near the sliding pin 15b, an enlarged width portion 12c projecting towards the center of the wheel 1b is formed. The sensor body portion 31 is mounted on the enlarged width portion 12c using a screw 32. The sensor body portion 31 is superimposed on an outer side of the portion to be detected 21 of the pulse ring 20 with a predetermined distance between them.
    The pulse signals generated in the sensor body portion 31 are transmitted to a controller (not shown in the drawing) via a sensor cable 33 that constitutes an electrical signal transmission wire, so that a wheel speed is calculated with based on the pulse signals.
    The sensor cable 33 which extends towards the outer tube 5b from the sensor body portion 31 within the pulse ring 20, 25 is folded upwards and extends upwards approximately along a rear side body surface vehicle of the external tube 5b, and is
    18/32 positioned on the rear side surface of the vehicle body of the external tube 5b by a clamp 34. The clamp 34 is fixed to a vertically intermediate portion of; a leading edge portion of the upper portion 12a of the gauge support 12 using a screw 34a.
    The sensor cable 33, which further extends upwards from clamp 34, is folded backwards above clamp 34, extends approximately horizontally, overlaps the brake hose 18 from above, is folded up again, and is attached together with the brake hose 18 by a clamp 35. In addition, the sensor cable 33 extends upward approximately along the brake hose 18 while substantially overlapping the brake hose 18.
    As shown in figure 4, with respect to sensor cable 33, a portion 33a of sensor cable 33 below clamp 34 is disposed within the brake caliper 3 in the vehicle width direction between the brake caliper 3 and the front fork 5. A portion of the clamp 34 that secures the sensor cable 33 is also positioned within the brake caliper 3 in the vehicle's wide direction.
    In addition, a portion 33b of the sensor cable 33 above the clamp 34 is disposed within the brake caliper 3 in the width direction of the vehicle.
    Due; to this constitution, it is possible to prevent the sensor cable 33 from protruding in the outward direction of the vehicle (in the direction out of the vehicle width direction) from the brake gauge 3, so that the sensor cable 33 can hardly be damaged.
    In addition, the sensor cable 33 is integrally attached to the brake hose 18, which has a relatively large diameter through the clamp 35, and therefore it is possible to reduce the oscillation of the sensor cable 33. Here, the brake hoses 18, 19 are configured to be deformed by deflection in the direction; vertical that corresponds to the movement of the front wheel 1 in the vertical or similar direction.
    In the following, the front wheel brake 2 is explained in detail. In figure 3 and figure 4, the (brake gauge 3 includes an internal fixed pad 36 that
    19/32 pushes an inner surface of a brake portion 4a of the brake disc 4, and an outer movable pad 37 that pushes an outer surface of the brake portion 4a. The outer movable cushion 37 is movable in the direction that the outer movable cushion 37 approaches or retracts from the brake disc 4 due to pressing of the piston 17c. A liquid chamber 38 is formed between the piston 17c and a wall portion of a piston accommodation chamber that is formed in the brake caliper 3.
    An operating liquid is supplied to the liquid chamber 38 from the brake hose 18 (see figure 2). When a liquid pressure becomes said, the piston 17c is pushed out towards the brake disc 4, which thus pushes the outer movable pad 37 to the brake portion 4a and also the brake caliper 3 moves towards the outside of the vehicle body along the sliding pin 15b (15a) due to a pressure of liquid in the liquid chamber 38 and therefore the inner fixed pad 36 is also pushed up to the brake portion 4a the brake disc 4.
    As; As a result, the inner fixed pad 36 and the outer movable pad 37 are pushed to both surfaces of the brake portion 4a of the brake disc 4, respectively, so that the brake caliper 3 grips the brake portion 4a of the brake disc. brake 4 and thus the braking is performed.
    The method applies to other pistons 17a, 17b not shown in figure 3, and the liquid chamber 38 is provided for each piston.
    As shown in figure 7, the brake disc 4 is arranged between the front fork 5 on the right side of the vehicle and the wheel 1b in a state where the brake disc 4 is parallel to a rotating surface formed by a lateral surface of the wheel 1b. The brake disc 4 includes, the integral parts thereof, the circular annular brake portion 4a and the brake disc mounting portions 4b which are formed on an inner peripheral side of the brake portion 4a.
    The various through holes 4c are formed in the brake portion 4a. Furthermore, an external shape of an external peripheral portion of the
    20/32 brake portion 4a is changed into a wavy shape which thus forms a wavy disc.
    Each brake disc mounting portion 4b is integrally formed on an inner peripheral side of the brake portion 4a in an approximately mound shape in a state where the brake disc mounting portion 4b projects towards the center of the disc brake 4. The number of brake disc mounting portions 4b is equal to the number of mounting bosses 50, and the brake disc mounting portions 4b are arranged in; inner peripheral side of the brake disc 4 approximately equidistant in the circumferential direction, in order to overlap the respective mounting bosses 50. The symbol E indicates an imaginary circle showing an inner periphery of the brake portion 4a, and each mounting portion brake disc 4b protrudes inward from the imaginary circle E.;
    A through hole 40 that allows screw 10 to be inserted through it is formed in each brake disc mounting portion 4b, and a seat portion 41 is formed at a periphery of the through hole!
    te 40. A width of the seat portion 41 is adjusted substantially equal to a width of the head portion 10a (see figure 4) of the screw 10.
    An enlarged portion in Figure 7 shows a radial directional section of the brake disc mounting portion 4b in an enlarged manner. As shown in the enlarged portion, the seat portion 41 is formed by countersinking, so that a stepped portion 42 having a thickness obtained by subtracting a depth d from a wall thickness of the brake portion 4a is formed. The depth d is substantially equal to a plate thickness t (see figure 5) of the pulse ring 20, and the aseptic portion 41 forms a thin wall portion 15 compared to the brake portion 4a. >
    In addition, a portion of the brake disc mounting portion 4b around the seat portion 41 forms a portion that has the same wall thickness as the brake portion 4a. Consequently, the seat portion 41 forms a lowered accommodation portion 43 which is more
    21/32 recessed compared to the periphery of the seat portion 41 in an amount of depth d, and the recessed accommodation portion 43 forms a recessed portion to accommodate the pulse ring assembly portion 23.
    Although the staggered portion 42 is formed by countersinking, so that the staggered portion 42 surrounds the seat portion 41, the staggered portion 42 does not surround the entire circumference of the seat portion 41. That is, the staggered portion 42 is formed in one approximately semicircular shape, in order to substantially surround half of the seat portion 41, or a brake portion side portion 4a of the seat portion 41 which is arranged on one side radially outwardly of the brake disc 4 with respect to the center of the seat portion 41.
    The stepped portion 42 is not formed in a portion of the brake disc mounting portion 4b which is arranged radially outwardly of the brake disk 4 with respect to the center of the seat portion 41. Consequently, the portion of the brake portion seat 41 which is arranged on one side radially into the brake disc 4 with respect to the center of the seat portion 41 is not surrounded by the stepped portion 42 and therefore the lowered accommodation portion 43 formed by the stepped portion 42 forms a space opened towards one side radially into the brake disc 4 where the pulse ring 20 is positioned.
    In forming the recessed housing portion 43, as described above, the pulse ring 20 can be disposed within the brake disc 4, and a seat portion 25 of the pulse ring mounting portion 23 projecting in the direction radially to outside while having an approximately mound shape and a flat shape as a whole, the seat portion 41 of the brake disc mounting portion 4b can be placed in an overlapping manner from an inner peripheral side of the brake disc 4.
    I
    In the following, the wheel speed sensor 30 is explained in detail. As shown in figure 3, the sensor body portion 31 is arranged to overlap an external side of the portion to be detected 21 of the
    22/32 pulse ring 20 with a predetermined distance between them.
    The sensor body portion 31 includes a magnet coil that generates pulse signals that correspond to a change in the magnetic flux. Due to this constitution, when the portion to be detected 21 is fully rotated with wheel 1 b due to the rotation of wheel 1 b and the detection holes 22 that are formed in the portion to be detected 21 equidistantly along the entire circumference in the circumferential direction and inter-pore portions 21a (see figure 8) each of which is a portion between the neighboring detection holes 22 alternatively pass in an area immediately close to the sensor body portion 31, the magnet coil of the sensor body portion 31 emits pulse signal waves that correspond to a rotational speed of wheel 1b that corresponds to a change in magnetic flux.
    As shown in figures 8 and 9, the pulse ring 20 is formed by pressure molding, or the like, using a ferromagnetic material, such as a steel material, and is an integral body formed from the portion 3 to be detected 21 and the portions of ring assembly of pulses 23 which are formed in) an outer peripheral portion of the portion to be detected 21 equidistantly in a manner projected in the radially outward direction.
    The number of pulse ring assembly portions 23 is equal to the number of mounting bosses 50. In this embodiment, five pulse ring assembly portions 23 are arranged to form a pentagram. A through hole 24 that allows the insertion of the screw 10 through it to be formed in a distal end portion of each pulse ring assembly portion 23, and a seat portion 25 to be formed in the periphery of the through hole 24.
    The through hole 24 has substantially the same diameter as the through hole 40 that is formed in the brake disc mounting portion 4b of the brake disc 4.
    The seat portion 25, which is a portion indicated by an imaginary line in the drawing, is a portion that overlaps the seating portion
    23/32 to 41 of the brake disc mounting portion 4b, and is substantially the same width as the seat portion 41.
    The ribs 26 are integrally formed on an outer peripheral side of the portion to be detected 21. The rib 26 has a flange shape where the rib 26 is folded inwards towards the center of rotation C (vehicle width direction) in a approximately right angle. The ribs 26 are provided to increase the stiffness of the portion to be detected 21 which thus forms the portion to be detected 21 that is hardly twisted (see figure 9). The ribs 26 are not continuously formed along the entire circumference of the portion to be detected 21 and, as shown in figure 8, are formed discontinuously, so that the rib 26 is formed between the pulse ring assembly portions neighbors 23, however, is not formed in a portion of the portion to be detected 21 where the pulse ring assembly portion 23 is formed. Due to such a constitution, the portion to be detected 21 can be easily formed by isolation. Even when the ribs 26 are formed discontinuously, as described above, outside the outer peripheral portion of the portion to be detected 21, the portions where the pulse ring mounting portion 23 is formed have high rigidity due to the mounting portion ring pulse 23 and therefore the stiffness of the portion to be detected 21 can be uniform as a whole.
    As shown in an enlarged portion in Figure 8, a circumferential end portion 26a of rib 26 and a proximal portion 23a that is a root portion of the pulse ring assembly portion 23 are arranged with a distance between them, and the portion separated forms a portion; shoulder 27 that connects the circumferential end portion 26a and j to the proximal portion 23a in approximately linear fashion. ;
    As shown in figure 9, the circumferential end portion 26a of the rib 26 has an inclined surface shape where the circumferential end portion 26a is angled towards the shoulder portion 27, and a height of the rib 26 that is bent and protrudes in di24 / 32 reaction to the center of rotation C is gradually reduced towards portion i
    end circumference !. By changing the height of the rib 26, so that the height of the rib 26 is gradually reduced towards the pulse ring assembly portion 23, it is possible to make the stiffness of the portion to be detected 21 obtained by the rib 26 and the stiffness of the portion to be detected 21 obtained by the uniform pulse ring assembly portion 23.
    An enlarged portion in Figure 9 shows a cross section of one of a pulse ring assembly portion 23 in an enlarged manner. Conforrpe can be clearly understood from the enlarged portion, an outer surface of the pulse ring mounting portion 23 and an outer surface of the portion to be detected 21 form continuous flat surfaces that are positioned on the same plane P, and a mounting portion pulse ring 20 itself, too, has a flat shape as a whole. Because of such a constitution, the predetermined distance is maintained between the outer surface of the portion to be detected 21 and the sensor body portion 31.
    Here, although the through hole 24 can be formed by an annular hole shown in figure 8 and figure 9, the through hole 24 can be formed by a U-shaped groove, for example, where a portion (for example,
    For example, a radially external portion) of an annular shape is opened.
    ί
    Opening the portion of the annular shape, as described above, it is possible to produce the ring of pulses 20 which is hardly influenced by the thermal deformation of the brake disc 4.
    In the following, the rigid mounting structure of the brake disc 4 and pulse ring 20 is explained.
    i
    As shown in figure 4 and figure 5, the mounting portion!
    brake disc gem 4b formed on the inner peripheral portion of the brake disc 4 is produced to overlap the distal end of the mounting boss 50 from the right outer side of the vehicle, the pulse ring mounting portion 23 is produced to superimpose the brake disc mounting portion 4b from the right outer side of the vehicle in the same way, the respective through holes 24, 40 are aligned with the threaded hole 25/32 of the female 51, and the screw 10 is allowed to pass through the respective through holes 24, 40 and is connected to the female threaded hole 51. Consequently, the brake disc mounting portion 4b and the pulse ring mounting portion 23 are rigidly mounted on the mounting boss 50 by clamping.
    When assembling, the brake disk mounting portion 4b and the pulse ring mounting portion 23 joined by fixing, in advance!
    the brake disc mounting portion 4b is formed as the recessed housing portion 43 which is arranged a step lower than i
    the outer surface of the brake portion 4a with a depth d that is substantially equal to a plate thickness t of the pulse ring mounting portion] 23. Consequently, when the pulse ring mounting portion Ϊ23 is produced to overlap the the outer side of the brake mounting portion 4b, the pulse ring mounting portion 23 is accommodated by the recessed housing portion 43. In addition, the pulse ring 20 is adjusted so that the outer surface of the portion to be detected 21 and the outer surface of the pulse ring assembly portion 23 is coplanar with each other and therefore the portion to be detected 21 and the pulse ring assembly portion 23 are coplanar with an outer surface of the pulse portion brake disc 4a of the brake disc 4 in a state where the brake disc mounting portion 4b and the pulse ring mounting portion 23 are fixed.
    In addition, the pulse ring assembly portion 23 of the pulse ring 20 has a flat surface that is continuous with the surface of the portion to be detected 21, and the outer surface of the portion to be detected 21 is arranged close to the body portion. sensor 31 which is arranged in the vicinity of the outer surface of the brake disc 4 with the predetermined distance s (figure 9). |
    Consequently, the pulse ring mounting portion 23 can be arranged, such as the portion having the flat surface that is continuous with the surface of the portion to be detected 21, in the same plane as the portion to be detected 21 without deviating the portion to be detected 21 flexionan
    26/32 the pulse ring assembly portion 23 is formed, and thus the pulse ring 20 can be formed in a substantially flat shape as a whole (excluding the ribs 26).
    It is necessary to arrange the sensor body portion 31 which is mounted on a lower portion 12b of the gauge support 12 relatively close to the portion to be detected 21 of the pulse ring 20 to maintain the predetermined detection accuracy. In this embodiment, with the outer surface of the portion to be detected 21 substantially coplanar with the outer surface of the brake disc 4, this modality can easily satisfy such demand for the position of the sensor body portion 31.:
    I í
    Furthermore, by causing the pulse ring mounting portion 23 to overlap the outer side of the brake disk mounting portion 4b, even when the pulse ring 20 is formed in a flat shape as a whole, so that the the portion to be detected 21 and the pulse ring assembly portion 23 are arranged in the same plane, this mode can easily satisfy the demand mentioned above.
    Furthermore, since the head portion 10a of screw 10 i
    of this modality it is originally flattened, a height where the head portion 10a of the screw 10 protrudes from an external surface of the brake disc 4 is substantially equal to a thickness e (see figure 5) of the head portion 10a and, thus, the projection height is relatively small. Furthermore, by forming a work tool hole 10b in the head portion 10a, the head portion 10a can be additionally flattened. <
    Consequently, even when the head portion 10a is not incorporated in the brake disc mounting portion 4b and the pulse ring mounting portion 23, it is possible to provide sufficient clearance c (figure 4) between the head portion 10a and the lower portion 12b of the gauge support 12 and therefore the head portion 10a does not prevent the rotation of the wheel 1 b. |
    As a result, the 12 gauge support can be arranged
    27/32 near the brake disc 4 and therefore the brake caliper 3 can be reduced. (
    Furthermore, the seat portion 41 is formed in the disc portion!
    of the 4b brake by countersinking. Consequently, compared to a case where the portion of the pulse ring assembly 23 is simply superimposed on a brake disk assembly portion that has no countersunk seat portion and a stepped portion is formed between the respective outer surfaces of the pulse ring mounting portion 23 and the brake disk mounting gate, a height 10 projecting out of the head portion 10a of screw 10 can be suppressed.
    Then, the mode of operation of this modality is explained. In figure 5, when the brake disc 4 is raised to an extremely high temperature under a special brake state, so that the brake disc 4 rises radially outwards due to thermal deformation, a!
    mounting portion of pulse ring 23 which is rigidly mounted to the mounting boss 50 of the wheel 1 b by fixing it to the brake disc 4 é!
    pushed in the direction radially outward (direction indicated by an arrow A) by means of screw 10.
    However, the pulse ring assembly portion 23 is formed coplanar with the portion to be detected 21 which thus forms the continuous surface to the portion to be detected 21. Consequently, as shown in figure | 8, in relation to the ring of pulses 20, the portion to be detected 21 is pushed only in the direction radially outwards evenly by means of the respective pulse ring assembly portions 23 which 25 are arranged equidistantly in the circumferential direction on the same plane as the assembly portions of ring of pulses 23. Therefore, the flexing of the mononeting portions of pulse ring 123 in relation to a portion to be detected 12 (1 due to the sloping portions 123b and the twisting of the entire portion to be detected 121 based on the stiffness of a flange 126 formed 30 on an internal peripheral side of the portion to be detected 121 shown in figure 11 is hardly generated.
    Consequently, even when pulse ring 20 is rigid
    28/32 properly mounted by fixing to the brake disc 4, the deformation of the portion to be detected 21 can be suppressed as much as possible and, thus, the position relationship between the portion to be detected 21 and the sensor body portion 31 can be kept within a predetermined range. As a result, the accuracy of detecting a wheel speed can be increased.
    In addition, by adopting the rigid assembly of the pulse ring 20 and the disc of the brake 4, fixing them together in place of the floating assembly adopted in the ariterior technique, the reduction of the number of parts and the reduction of costs can be accomplished.
    Here, the recessed accommodation portion 43 having a depth d substantially equal to a plate thickness t of portion i
    pulse ring assembly 23 is formed by forming the seat portion 41 on the disc mounting portion of the brake 4b by countersinking, and the lowered accommodation portion 43 is opened towards the inside in the radial direction that is already a side where the pulse ring 20 is positioned. Consequently, by causing the seat portion 25 of the pulse ring mounting portion 23 to overlap the outer side of the seat portion 41 of the brake disc mounting portion 4b, the portion to be detected 21 that is arranged in the same plane as the pulse ring mounting portion 23 can be arranged substantially coplanar with the brake disc 4j
    In order to maintain the predetermined detection accuracy, it is necessary that the portion of the sensor body 31 mounted on the lower portion 12b of the gauge support) 12 be arranged relatively close to the portion to be detected 21 of the pulse array 20. In this embodiment, the the outer surface of the portion to be detected 21 is arranged substantially coplanar with the outer surface) of the brake disc 4 and, therefore, adjusting the distal end) of the sensor body portion 31 at substantially the same height as the outer surface of the brake brake disc 4, when seen in a side view, a demand that refers to the position of disposal of such portion of the sensor body 31 can be easily satisfied.
    29/32
    Furthermore, the seat portion 41 is formed on the disc portion of the brake 4b by ejection. Consequently, compared to a case in which the pulse ring assembly portion 23 is simply overlaid with a brake disk assembly portion that does not have such a countersunk seat portion and a stepped portion is formed between the respective outer surfaces of the pulse ring assembly portion 23 and the brake disk assembly portion, a height projecting out of the head portion 10a of the screw 10 in the width direction of the vehicle can be suppressed.
    In addition, by forming the ribs 26 in the outer peripheral portion of the portion to be detected 21, the stiffness of the pulse ring 20 can be increased as a whole, thereby forming the portion to be detected 21 that is hardly deformed. Furthermore, when fixing the ring of pulses 20, since each rib: 26 is positioned between the seat portion 25 in which a traction load generated by the thermal deformation of the brake disc 4 is inserted and the portion to be detected 21, the deformation of the portion to be detected 21 in relation to the tensile load can be suppressed as much as possible. ;
    A case is assumed in which the portion to be detected 21 and the pulse ring assembly portion 23 are arranged in the same plane. In a case where a flange constituting the rib structure is formed on an inner peripheral side of the portion to be detected 21 as in the prior art shown in figure 11, when the pulse ring assembly portions 23 are pushed in the radial direction out so that i
    the portion to be detected 21 is subjected to deformation in the direction of diameter expansion, the stiffness of the inner peripheral side of the portion to be detected 21 is increased due to the flange and, therefore, the stiffness becomes the resistance against deformation of the portion to be detected 21 in the direction of diameter enlargement, so that the forces turned in the opposite directions!
    each other to be applied on an internal peripheral side and an external peripheral side of the portion to be detected 21 and, therefore, there is a possibility that the twist will be generated in the portion to be detected 21.
    30/32
    When the portion to be detected 21 has a simple flat shape without ribs 26, the possibility that the portion to be detected 21 is deformed by torsion is further increased.
    However, by forming the ribs 26 on the outer peripheral side of the portion to be detected 21, the generation of such torsion can be reduced, and the ribs 26 | may increase the rigidity of the portion to be detected 21 against the aforementioned traction.
    In addition, the ribs 26 are not continuously formed along the entire circumference and are not formed in a discontinuous way!
    in the portions where the pulse ring assembly portions 23 are formed, and the circumferential end portion 26a of rib 26 and the
    The proximal portion 23a of the pulse ring assembly portion 23 is arranged with the shoulder portion 27 interposed between them. Consequently, by forming the ribs 26 in the portions of the portion to be detected 21 while preventing the portions of the portion to be detected 21 from having high rigidity due to the formation of the pulse ring assembly portion 23, the portion to be detected 21 it can acquire high rigidity and, also, the rigidity of the portion to be detected 21 can be uniform through the ribs 26 and the pulse ring assembly portions 23. Furthermore, the ribs 26 are formed discontinuously in the portions where the portions of pulse ring assemblies 23 are formed and, therefore, the pulse ring can be easily formed by pressure molding, or the like, using a flat element, and the weight of the pulse ring 20 can be reduced as a whole.
    i
    The present invention is not limited to the respective modalities mentioned above, and several modifications and applications are conceivable without departing from the principle of the present invention. For example, the detection holes may not always be formed in the pulse ring, the tooth portions may be formed equidistantly in the circumferential direction 30 or magnetic minute poles may be equidistantly arranged in the circumferential direction.
    In addition, the wheel speed sensor can be a sensor
    31/32 optical that does not detect a change in the magnetic force generated by the rotation of the pulse ring, however, it detects the reflection and transmission of light.
    In addition, the pulse ring 20 can have a diameter greater than a brake disc diameter 4 and can be arranged outside the brake disc 4. In this case, the brake disc mounting portions 4b are arranged on an outer peripheral side of the brake disc 4, the pulse ring mounting portions 2 ^ are arranged on the inner peripheral side of the pulse ring i
    20, and the lowered accommodation portion constituting the seat portion 41 is opened in the radially outward direction.
    In addition, it is sufficient that the seat portions 25 of the pulse window assembly portion 23 and the portion to be detected 21 are arranged in the flat panel. Consequently, by flexing an intermediate portion of the pulse ring assembly portion 23 which is a portion between the proximal portion 23a and the seat portion 25, a tensile force that is generated in the radially outward direction at the time of thermal deformation. of the brake disc 4 can be absorbed.
    In addition, a vehicle to which the present invention is applicable is not limited to a motorcycle, and can also be applicable to a vehicle of the type of riding a two-wheel saddle to four wheels and a scooter-type vehicle. Furthermore, the present invention is not limited to the front wheel, however, it is applicable to the rear wheel. When the present invention is applied to the rear wheel, the rear wheel is supported on a rear fork, so that the brake disc and pulse ring are mounted on the rear wheel wheel, and the sensor body portion is mounted on the rear fork.
    Description of References and Numeric Signs
    1: front wheel í
    1b: wheel
    3: brake gauge | 4: brake disc> 4a: brake portion j 4b: brake disc mounting portion 5: front fork!
    32/32
    10: screw
    20: pulse ring
    21: portion to be detected i
    22: detection hole
    23: pulse ring assembly portion
    25: seat portion 26: rib i
    30: wheel speed sensor
    31: sensor body portion
    40: through hole
    I
    41: seat portion
    42: staggered portion!
    43: lowered portion of accommodation i
    50: mounting boss
    1/3
    权利要求:
    Claims (5)
    [1]
    1. Wheel speed sensor mounting structure comprising:
    a gauge (5) that swivels a wheel (1b);
    a brake disc (4) which is mounted on a lateral surface of the wheel (1b) in a fully rotating manner and in which the braking is applied by a brake caliper (3); and a wheel speed sensor (30) to detect a rotational speed of! wheel (1b), characterized by the fact that the wheel speed sensor (30) includes: a pulse ring (20) that is fully rotated with the wheel (1b); and a sensor body portion (31) which is disposed next to an annular portion to be detected (21) formed in the pulse ring (20) and generates pulse signals that correspond to a rotational speed of the pulse ring (20 ), where the pulse ring (20) is mounted on one wheel side (1b), and the sensor body portion (31) is mounted on a fork side (5), where the pulse ring (5) 20) includes ring mounting portions
    I pulses (23) projecting radially outwardly from the portion to be detected (21), the pulse ring assembly portion (23) is connected to the side surface of the wheel (1b) along with the portion of brake disc assembly (4b) formed by the brake disc (4) using a fastener (10) in a state where the pulse ring mounting portion (23) overlaps the brake disc mounting portion (4) 4b), and a seat portion (25) that is connected by the fastener (10) and the portion to be detected 21 of the pulse ring assembly portion (23) are arranged in the same plane.
    [2]
    2. Pulse ring assembly structure according to claim 1, characterized in that the pulse ring (20) includes, as an integral part of it, a rib (26) which is formed by flexing an edge portion on the peripheral side of the portion to be detected (21) along an external periphery of the portion to be detected (21).
    2/3
    [3]
    3. Pulse ring assembly structure according to claim 1 or 2, characterized in that the structure includes a gauge support (12) which is mounted on the fork (5) and supports the gauge (3), the brake disc mount portion (4b) and the pulse ring mount portion (23) are arranged in a position where the brake disc mount portion (4b) and the pulse ring mount portion (23) partially overlap an internal side of the gauge support (12) when viewed in a side view at the time of rotation, respectively, and a lowered accommodation portion (43) which is arranged a step lower than an external surface of the portion The brake disc (4a) is formed on the brake disc mounting portion (4b) of the brake disc (4) on a portion of the brake disc mounting portion (4b) that overlaps the seat portion (25) of the brake portion. mounting ring (23), and a!
    seat portion (25) of the wrist ring mounting portion (23) is accommodated in the lowered accommodation pocket (43).
    [4]
    4. Pulse ring assembly structure according to claim 3, characterized by the fact that the lowered accommodation portion (43) is formed by countersinking, and the lowered accommodation portion (43) is opened towards a side on which the pulse ring (20) is positioned.
    [5]
    Pulse ring assembly structure according to one of claims 1 to 4, characterized in that the structure includes a brake hose (18) which extends upwards from the brake caliper (3) behind of the fork (5), the brake caliper (3) is arranged behind the fork (5) when viewed in a side view, the sensor body portion (31) is disposed between the fork (5) and the brake caliper (3), and a sensor cable (33) that is connected to the sensor body portion (31) extends upward into the brake caliper (3) in the vehicle's wide direction from the sensor body portion (31) over the
    3/3 fork (5), is supported by a clamp (34) that is mounted on the gauge support (12), is folded back from the clamp (34), extends backwards after passing through an area above the brake gauge (3), is additionally folded up, and is arranged on an upper side of the vehicle together with the 5 brake hose (18).
    1/6
    类似技术:
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    同族专利:
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    法律状态:
    2018-02-06| B03A| Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]|
    2018-12-11| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-10-01| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-09-15| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]|
    2021-03-09| B09B| Patent application refused [chapter 9.2 patent gazette]|
    2021-05-18| B12B| Appeal: appeal against refusal|
    优先权:
    申请号 | 申请日 | 专利标题
    JP2011167898A|JP5969179B2|2011-07-31|2011-07-31|Wheel speed sensor mounting structure|
    JP2011167898|2011-07-31|
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