• 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:
    The invention relates to an exhaust mobile comprising an escape wheel interacting with an anchor, an oil retaining portion (116) formed on the escape wheel and configured to retain oil and a portion of circulation (121) configured to convey oil between a sliding surface (115) of the escapement wheel sliding on the anchor and the oil retaining portion. The invention also relates to a movement comprising such a mobile and a timepiece comprising such a movement.
    公开号:CH709264B1
    申请号:CH00191/15
    申请日:2015-02-13
    公开日:2020-01-31
    发明作者:Konishi Miei；Miyoshi Natsuki
    申请人:Seiko Instr Inc；
    IPC主号:
    专利说明:

    Description
    BACKGROUND OF THE INVENTION
    1. Field of the invention The present invention relates to an escapement mobile, a movement and a timepiece.
    2. Description of the state of the art An escapement mobile is a timepiece component intended to be mounted in a timepiece. An exhaust mobile is known which has an escape wheel interacting with an anchor, and which controls the rotation of a center mobile, a third mobile and a second mobile. In this escapement wheel, the pallet of the anchor slides on a lateral surface (hereinafter simply referred to as the sliding surface) of the escape wheel, so that friction is generated between them, leading to this that the components become subject to abrasion. Therefore, to reduce friction as much as possible, it is necessary to retain lubricating oil between the pallet and the sliding surface.
    A solution is known which meets this need, in which a step-shaped portion reduced in thickness by comparison with a proximal portion is provided at a distal end portion of an escape wheel and in which lubricating oil is retained in this step-shaped portion (see, for example, document JP-A-2007-506,073 (Patent document 1)).
    However, the solution of Patent Document 1 leaves room for improvement in terms of regular circulation of the lubricating oil between the step-shaped portion and the sliding surface. That is, in the solution of Patent Document 1, the lubricating oil retained in the step-shaped portion is not easily supplied to the sliding surface, and it is difficult to reduce friction between the sliding surface of the escape wheel and the pallet of the anchor.
    On the other hand, if a large amount of lubricating oil is supplied to the sliding surface, there is a risk that the lubricating oil existing between the sliding surface of the escape wheel and the pallet of the anchor can adhere to a portion where it is not needed, or that the speed at which the lubricating oil in the step-shaped portion decreases is increased, resulting in degradation of durability.
    SUMMARY OF THE INVENTION An object of the present invention is therefore to improve an escape wheel having regard to the above-mentioned problems relating to the lubrication of a sliding surface present on such an escape wheel.
    To achieve the above object, the present invention provides the following means:
    (1) According to the present invention, there is provided an exhaust mobile comprising: an escape wheel provided for interacting with an anchor; an oil retaining portion formed in the escapement wheel and configured to retain oil; and a routing portion configured to route oil between the surface of the escapement wheel intended to slide on the anchor and the oil retention portion.
    In this configuration, it is possible to reliably route oil between the sliding surface of the escapement wheel and the oil retaining portion. In this case, the retained oil, for example in the oil retaining portion, is reliably supplied to the impulse surface via the conveying portion, so that it is possible to '' obtain an improvement in terms of lubrication performance, and attenuate the abrasion between the sliding surface and the anchor, which makes it possible to ensure operational reliability for a long period of time. In addition, the oil remaining on the sliding surface is regularly recovered by the oil retaining portion via the routing portion, so that it is possible to remove the adhesion of oil on portions other than the sliding surface, and reduce the rate at which the oil in the oil holding portion decreases. Therefore, there is room for improvement in terms of sustainability.
    (2) In the exhaust mobile according to the present invention, the routing portion may include a supply portion configured to supply oil to the sliding surface from the oil retaining portion. In this configuration, the oil retained by the oil retaining portion is reliably supplied to the pulse surface via the supply portion, so that it is possible to to obtain an improvement in terms of lubrication performance, and to attenuate the abrasion between the sliding surface and the anchor, which makes it possible to ensure operational reliability for a long period of time.
    (3) In the exhaust mobile according to the present invention, the conveying portion may include a recovery portion configured to recover oil from the sliding surface, intended for the retaining portion of oil.
    In this configuration, the oil remaining on the sliding surface is reliably recovered by the oil retaining portion by means of the recovery portion, so that it is possible to remove the adhesion d oil to
    CH 709 264 B1 portions other than the sliding surface, and to reduce the rate of decrease of the oil in the oil retention portion. Therefore, there is room for improvement in terms of sustainability.
    (4) In the exhaust mobile according to the present invention, the routing portion may include a hollow hollowed out in the thickness direction of the escape wheel and going from the oil retaining portion towards the sliding surface.
    In this configuration, the conveying portion has a recess, so that it is possible to reliably route oil between the sliding surface and the oil retaining portion. In addition, oil is also retained in the recess, so that it is possible to improve the oil retention performance and obtain an improvement in terms of durability.
    (5) In the exhaust mobile according to the present invention, the recess can be reduced in width from upstream to downstream, in the direction of oil progression.
    In this configuration, it is possible to actively cause the oil retained by the oil retaining portion to progress towards the downstream side, so that it is possible to reliably route oil between the impulse surface and the oil retaining portion.
    (6) In the exhaust mobile according to the present invention, the conveying portion may include a plurality of protrusions projecting in the thickness direction of the escape wheel, and the pitch between the protrusions can be reduced from the upstream side to the downstream side, in the direction of oil progression.
    In this configuration, the oil retained by the oil retaining portion progresses towards the zone where the pitch between the protuberances is small due to capillary action, which makes it possible to route reliably oil between the impulse surface and the oil retaining portion.
    (7) In the exhaust mobile according to the present invention, the oil retaining portion can be a step-shaped portion hollowed out in the thickness direction of the escapement wheel.
    In this configuration, it is possible to obtain an improvement in terms of the quantity of oil retained by retaining oil in the step-shaped portion. In addition, the escape wheel has the step-shaped portion, so that, in comparison with the case where the oil retention structure is provided on the pallet of the anchor, it is possible to ensure a greater amount of oil retention.
    (8) In the exhaust mobile according to the present invention, the oil retaining portion can be a through hole extending in the thickness direction of the escapement wheel.
    In this configuration, by retaining oil in the through hole, it is possible to obtain an improvement in terms of the quantity of oil retained. In addition, the escape wheel has the step-shaped portion, so that, in comparison with the case where the oil retention structure is provided on the pallet of the anchor, it is possible to ensure a greater amount of oil retention.
    (9) A movement according to the present invention comprises an exhaust mobile according to the present invention as described above.
    In this configuration, due to the presence of the exhaust mobile described above, it is possible to obtain an improvement in terms of durability and to ensure operational reliability for a long period of time.
    (10) A timepiece according to the present invention comprises a movement according to the present invention described above.
    In this configuration, due to the presence of the movement of the present invention described above, it is possible to obtain an improvement in terms of durability and to ensure operational reliability for a long period of time.
    According to the present invention, it is possible to route oil regularly between the oil retaining portion and the sliding surface.
    Brief description of the drawings [0029]
    Fig. 1 is a plan view of the front face of a movement according to an embodiment of the present invention.
    Fig. 2 is a plan view of an exhaust mechanism.
    Fig. 3 is an enlarged perspective view of an escapement wheel portion.
    Fig. 4 is an enlarged view of a tooth according to a first embodiment, a portion (a) of which is a plan view, and a portion (b) of which is a sectional view taken along line X1-X1 of the portion (a).
    CH 709 264 B1
    Fig. 5 is an enlarged cross section of a tooth according to the first embodiment.
    Fig. 6 is an enlarged view of the portion Y of FIG. 2.
    Fig. 7 is an enlarged view of the portion Y of FIG. 2, illustrating the operation of the exhaust mechanism.
    Fig. 8 is an enlarged view of the portion Y of FIG. 2, illustrating the operation of the exhaust mechanism.
    Fig. 9 is an enlarged view of the portion Y of FIG. 2, illustrating the operation of the exhaust mechanism.
    Fig. 10 is a plan view of a tooth according to a first modification of the first embodiment.
    Fig. 11 is an enlarged view of the tooth according to the first modification of the first embodiment, the portion (a) of which is a plan view of the tooth, and the portion (b) of which is a sectional view taken along the line X2-X2 of portion (a).
    Fig. 12 is a plan view of the tooth according to the first modification of the first embodiment.
    Fig. 13 is an enlarged view of the tooth according to the second modification of the first embodiment, the portion (a) of which is a plan view of the tooth, and the portion (b) of which is a sectional view taken along the line X3-X3 of portion (a).
    Fig. 14 is a plan view of the tooth according to the second modification of the first embodiment.
    Fig. 15 is a plan view of the tooth according to the second modification of the first embodiment.
    Fig. 16 is an enlarged view of the tooth according to another configuration of the first embodiment, the portion (a) of which is a plan view of the tooth, and the portion (b) of which is a sectional view taken along the line X4-X4 of portion (a).
    Fig. 17 is an enlarged view of a tooth according to a second embodiment, a portion (a) of which is a plan view, and a portion (b) of which is a sectional view taken along line X5-X5 of the portion (a).
    Fig. 18 is a plan view of a tooth according to a modification of the second embodiment.
    Fig. 19 is a plan view of a tooth according to a modification of the second embodiment.
    Fig. 20 is an enlarged view of a tooth according to a third embodiment, a portion (a) of which is a plan view, and a portion (b) of which is a sectional view taken along line X6-X6 of the portion (a).
    Fig. 21 is a plan view of a tooth according to a first modification of the third embodiment.
    Fig. 22 is a plan view of the tooth according to the first modification of the third embodiment.
    Fig. 23 is a plan view of a tooth according to a second modification of the third embodiment.
    Fig. 24 is a plan view of the tooth according to the second modification of the third embodiment.
    Fig. 25 is a plan view of the tooth according to the second modification of the third embodiment.
    Fig. 26 is a plan view of a tooth according to a third modification of the third embodiment.
    Fig. 27 is a plan view of the tooth according to the third modification of the third embodiment.
    Fig. 28 is a plan view of the tooth according to the third modification of the third embodiment.
    Fig. 29 is a plan view of the tooth according to the third modification of the third embodiment.
    Fig. 30 is an enlarged view of a tooth according to another modification, of which the portion (a) is a plan view of the tooth, the portion (b) is a plan view of the tooth as seen from the other side, and the portion (c) is a sectional view taken along line X7-X7 of the portion (a).
    Fig. 31 is an enlarged view of a tooth according to another modification, the portion (a) of which is a plan view of the tooth as viewed from the other side of the main surface, and the portion (b) of which is a view in section taken along line X8-X8 of portion (a).
    CH 709 264 B1
    Fig. 32 is an enlarged view of a tooth according to another modification, of which the portion (a) is a plan view of the tooth, and the portion (b) is a sectional view taken along the line X9-X9 of portion (a).
    Fig. 33 is an enlarged view of a tooth according to another modification, and is a sectional view corresponding to the line X9-X9 in FIG. 32 (b).
    Detailed description of the preferred embodiments Next, embodiments of the present invention will be described with reference to the figures.
    First embodiment Mechanical timepiece First, a mechanical timepiece 1 will be described. Fig. 1 is a plan view of the front face of a movement.
    As shown in fig. 1, the mechanical timepiece 1 of this embodiment is composed of a movement 10, and of a case (not shown) which receives this movement 10.
    The movement 10 has a main plate 11 which constitutes the chassis. On the back of this main plate 11 is disposed a dial (not shown). A drive train integrated into the front face of the movement 10 will be called the front drive train and a drive train integrated into the rear face of the movement 10 will be called the rear drive train.
    The main plate 11 has a winding rod guide hole 11a, and a winding rod 12 is integrated therein so as to be able to rotate. The axial position of this winding stem 12 is determined by a switching device provided with an adjustment lever 13, a portable player 14, a portable spring 15 and a jumper of an adjustable lever 16. A winding pinion 17 is provided so as to be able to rotate on the portion of the guide shaft of the winding rod 12.
    In this configuration, when the winding stem 12 is turned in a situation in which the winding stem 12 is in a first winding stem position (step 0), the closest to the inside of the movement 10 as measured along the direction of the axis of rotation, the winding pinion 17 is rotated by means of the rotation of a clutch wheel (not shown). And, by the rotation of this winding pinion 17, a meeting wheel 20 is rotated by meshing with it. Then, by the rotation of this meeting wheel 20, a ratchet 21 is rotated by meshing with it. In addition, by the rotation of this ratchet 21, a main spring (energy source) (not shown) housed in a movement barrel 22 is armed.
    In addition to the above-mentioned movement barrel 22, the front drive train of the movement 10 is composed of a center mobile 25, a third mobile 26 and a second mobile 27, used to transmit the force of rotation of the movement barrel 22. In addition, on the front face of the movement 10, there is an escape mechanism 30 and a regulating mechanism 31 for controlling the rotation of the front drive train.
    The center mobile 25 is formed as a meshing wheel with the movement barrel 22. The third mobile 26 is formed as a meshing wheel with the central mobile 25. The second mobile 27 is formed as a wheel meshing with the third mobile 26.
    The exhaust mechanism 30 is a mechanism controlling the rotation of the aforementioned front drive train, and it includes an exhaust mobile 35 meshing with the second mobile 27, and an anchor 36 configured to ensure that the exhaust mobile 35 escapes and rotates regularly.
    The regulator mechanism 31 is a mechanism for regulating the aforementioned exhaust mechanism 30, and it includes a spiral balance 40.
    Escape Mechanism Next, the aforementioned escape mechanism 30 will be described in more detail. Fig. 2 is a plan view of the exhaust mechanism 30.
    As shown in fig. 2, the exhaust mobile 35 of the exhaust mechanism 30 comprises an escape wheel 101, and an element forming a shaft 102 fixed coaxially to the escape wheel 101. In the following description, the direction along the axis of the tree-forming element 102 will simply be called the axial direction, the direction orthogonal to the axial direction will be called the radial direction, and the direction around the axis will be called the peripheral direction. In fig. 2, the direction of rotation of the exhaust mobile 35 is indicated by the arrow CW.
    The escape wheel 101 has an annular serge 111, a central portion 112 disposed on the internal side of the serge 111, and a plurality of spokes 113 connecting the serge 111 and the central portion 112 one to the other.
    CH 709 264 B1 The central portion 112 is of a disc-like configuration, and a member forming a shaft 102 is fixed to a central portion thereof by force insertion or the like.
    The rays 113 extend radially from the outer peripheral edge of the central portion 112 to the inner peripheral edge of the twill 111.
    [0045] FIG. 3 is an enlarged perspective view of the escapement wheel 101. FIG. 4 is an enlarged view of a tooth 114, the portion (a) of which is a plan view thereof, and the portion (b) of which is a sectional view taken along line X1-X1 of the portion (at). Fig. 5 is an enlarged side view of tooth 114.
    As shown in figs. 3 to 5, from the outer peripheral surface of the serge 111, protrudes radially outwardly from a plurality of teeth 114 formed in a special configuration similar to a hook. The distal end portions of the plurality of teeth 114 are brought into cooperation with the pallets 144a and 144b of an anchor 36 described below.
    More specifically, the lateral surfaces of the distal end portion of the tooth 114 include a rest surface 115a located on the rear side in the direction of rotation CW of the exhaust mobile 35 and configured to abut against the paddles 144a and 144b, a rear surface 115b situated on the front face in the direction of rotation CW, and a pulse surface 115c constituting the distal end surface of the tooth 114 and connecting the rest surface 115a and the surface rear 115b. Furthermore, the corner formed by the rest surface 115a and the impulse surface 115c forms a rest spout 115d, and the corner formed by the rear surface 115b and the impulse surface 115c forms a pulse spout 115e. As part of tooth 114, the extent extending from the rest surface 115a to the impulse spout 115e via the rest spout 115d constitutes the sliding surface 115 according to the present embodiment.
    At the distal end portion of the tooth 114, is formed, on one side of the main surface in the axial direction, a step-shaped portion (oil retaining portion) 116 retaining the lubricating oil O. At the distal end portion of the tooth 114, one major surface side of the step-like portion 116 is hollowed out in the axial direction, and both sides in the peripheral direction and the outer side in the radial direction are open there. That is, the step-shaped portion 116 is defined by a lower portion 116a located on a main surface of the tooth 114, and an ascending portion 116b rising in the axial direction between the proximal end portion and the distal end portion of tooth 114.
    As shown in fig. 4, at the distal end portion (step-shaped portion 116) of the tooth 114, there is provided on the lower portion 116a, a supply portion 121 guiding the lubricating oil O retained in the portion in step form 116, towards the pulse surface 115c. The supply portion 121 extends in the radial direction on the lower portion 116a, and comprises a plurality of recesses 122 arranged at intervals in the peripheral direction. The recesses 122 extend parallel to each other, and are formed with a uniform width over the entire lower portion 116a in the radial direction.
    More specifically, for each recess 122, the proximal end portion is located at the level of the proximal end portion of the step-shaped portion 116 (the boundary portion between the lower portion 116a and the upward portion 116b), and the distal end portion is opened in a radial direction towards the outside at the level of the impulse surface 115c of the tooth 114. Within the recesses 122, the lubricating oil O is advanced according to the direction in which they extend; the proximal end side of these constitutes the upstream side in the direction of progression, and the distal end portion of these constitutes the downstream side.
    As shown in fig. 2, the shaft-forming element 102 has pivot portions 123 located at one and the other end portion in the axial direction, and an exhaust pinion 124 meshing with the wheel of the second mobile 27 above.
    Among the pivot portions 123, the pivot portion 123 located at one end side in the axial direction is supported so as to be able to rotate, by a drive train bridge (not shown), and the pivot portion 123 located at the other end side in the axial direction is supported so as to be able to rotate, by the main plate 11 mentioned above.
    On the element forming a shaft 102, the exhaust pinion 124 is formed at the other end side in the axial direction relative to the escape wheel 101. And, the pinion exhaust 124 is caused to mesh with the second mobile 27, so that the rotational force of the second mobile 27 is transmitted to the element forming a shaft 102, which makes the exhaust mobile 35 rotate.
    The anchor 36 includes an anchor body 142d T-shaped by three anchor arms 143, and an anchor rod 142f; and the anchor body 142d can rotate due to the anchor rod 142f forming a shaft. Both ends of the anchor rod 142f are supported so that they can rotate (in the directions P1 and P2) relative to the main plate 11 above and to an anchor bridge (not shown) . The range of rotation of the anchor 36 is regulated by a limiting pin (not shown).
    Pallets (one entry pallet 144a and one exit pallet 144b) are provided at the distal ends of two anchor arms 143 among the three anchor arms 143, and at the level of the distal end of the remaining anchor arm 143, a pallet drum 145 is mounted which can be brought into engagement and released relative to a double roller (not
    CH 709 264 B1 shown) of the balance spring 40. The pallets (the entry pallet 144a and the exit pallet 144b) are made of rubies shaped into prisms; and they are linked and fixed to the anchor arms 143 by an adhesive or the like.
    FIG. 6 is an enlarged view of the portion Y of FIG. 2. In the following, the structure of the distal end portion of the outlet pallet 144b, the inlet pallet 144a and the outlet pallet 144b will be described; concerning the structure of the distal end portion of the inlet pallet 144a, it is the same as that of the outlet pallet 144b; a description of it will therefore be omitted.
    As shown in fig. 6, the distal end portion of the outlet pallet 144b has a rest surface 146a situated on the front face in the direction of rotation CW of the escape wheel 101 and coming into abutment against the rest surface 115a of the tooth 114, a rear surface 146b situated on the rear face in the direction of rotation CW, and a pulse surface 146c constituting the distal end surface of the output pallet 144b and connecting the rest surface 146a and the rear surface 146b. The corner formed by the rest surface 146a and the impulse surface 146c form a rest spout 146d, and the corner formed by the rear surface 146b and the impulse surface 146c form a impulse spout 146e. As part of the output pallet 144b, the extent thereof extending from the rest surface 146a to the impulse spout 146e passing through the rest spout 146d constitutes a sliding surface 146 according to the present embodiment. production.
    Next, the operation of the exhaust mechanism 30 will be briefly described. The following description will focus on the case where a transition is made from a coupling state in which the tooth 114 of the escapement wheel 101 shown in FIG. 6 and the output pallet 144b of the anchor 36 are engaged relative to each other, in a state of separation in which the tooth 114 and the output pallet 144b are separated from each other as shown in fig. 9. In the coupling state, the rest spout 115d of tooth 114 is in contact with the rest surface 146a of the output pallet 144b.
    When, with the oscillation of the spiral balance 40 (see fig. 1), the anchor 36 turns in the direction P1 (see fig. 2), the output pallet 144b moves away from the tooth 114. D ' on the other hand, the force of rotation of the aforementioned movement barrel 22 is communicated to the exhaust mobile 35 via the second mobile 27 (see fig. 1 for both), so that, as as the outlet pallet 144b moves, the exhaust mobile 35 rotates in the direction of rotation CW.
    As shown in figs. 6 and 7 (a), at this moment, the rest spout 115d of tooth 114 slides on the rest surface 146a of the output pallet 144b in the direction of the rest spout 146d of the output pallet 144b, then arrives at the rest spout 146d of the output pallet 144b. After this, as shown in fig. 7 (b), the spout 115d of tooth 114 passes the spout 146d of the output pallet 144b, and slides on the impulse surface 146c of the output pallet 144b towards the side of the spout impulse 146th.
    Thereafter, as shown in FIG. 8 (a), the rest spout 115d of the tooth 114 passes the impulse spout 146e of the output pallet 144b; then, at this time, as shown in fig. 8 (b), the impulse spout 146e of the output paddle 144b slides on the impulse surface 115c of tooth 114 in the direction of the impulse spout 146e of tooth 114. After this, as shown in fig . 9 (a), the impulse spout 146e of the pallet 144 passes the impulse spout 115e of tooth 114, so that the state of separation is reached, as shown in fig. 9 (b).
    On the other hand, as shown in fig. 2, when the anchor 36 rotates in the direction P1 (the direction in which the output pallet 144b moves away from the tooth 114), the input pallet 144a approaches the tooth 114. Consequently, the pallet d input 144a is engaged with tooth 114 and the rotation of the exhaust mobile 35 is again stopped.
    After this, by the oscillation of the spiral balance 40, the anchor 36 rotates in the direction P2 which is opposite to the direction P1; then, by the same operation as that described above, the tooth 114 and the entry pallet 144a undergo a transition from the coupling state to the separation state. In this way, in the exhaust mechanism 30, the tooth 114 of the exhaust mobile 35 and the input pallet 144a and the output pallet 144b repeat alternately the coupling state and the separation state.
    Here, as shown in Figs. 6 to 9, during the aforementioned transition from the coupling state to the separation state, the sliding surface 115 of the tooth 114 and the sliding surfaces 146 of the pallets 144a and 144b slide one on the other by l 'Intermediate lubricating oil O. More specifically, in the coupling state shown in fig. 6, that is to say in the state in which the rest spout 115d of the tooth 114 and the rest surface 146a of the output pallet 144b are in contact with each other, the oil O lubrication retained in the step-shaped portion 116 is provided between the rest spout 115d of the tooth 114 and the rest surface 146a of the outlet pallet 144 due to capillary action or the like. Consequently, it is possible to regularly bring the rest spout 115d of the tooth 114 and the rest surface 146a of the output pallet 144b into sliding contact with each other.
    On the other hand, as shown in Figs. 4 and 6, the lubricating oil O retained in the step-shaped portion 116 progresses within the recesses 122 of the supply portion 121 from the interior side to the exterior side (from the upstream side to the downstream side) in the radial direction due to surface tension or the like. And, the lubricating oil O having reached the downstream ends within the recesses 122 passes the recesses 122 and is supplied on the impulse surface 115c of the tooth 114. Thus, it is possible to regularly bring the surface d pulse 115c of tooth 114 and pulse nozzle 146e of the output pallet 144 in sliding contact with one another.
    CH 709 264 B1 In this way, in the exhaust mobile 35 of this embodiment, there is provided the supply portion 121 supplying lubricating oil O to the surface 115 of the tooth 114 sliding on anchor 36.
    In this configuration, the lubricating oil O retained in the step-shaped portion 116 of the tooth 114 is supplied regularly on the sliding surface 115 by means of the recesses 122 of the supply portion 121. Thus, an improvement in lubrication performance is obtained, and it is possible to reduce the abrasion between the sliding surface 115 of the tooth 114 and the pallets 144a and 144b of the anchor 36, so that it is possible to ensure operational reliability for a long period of time.
    In addition, in the present embodiment, the supply portion 121 includes a plurality of recesses 122, so that it is possible to regularly supply lubricating oil O. In addition, the oil of Lubrication O is also retained in the recesses 122, so that it is possible to obtain an improvement in oil retention performance and an improvement in durability.
    In addition, in the present embodiment, the step-shaped portion 116 is provided on each tooth 114 of the exhaust mobile 35 of the exhaust mechanism 30, so that, in comparison with the case where the oil retention structure is provided on the pallets 144a and 144b of the anchor 36, it is possible to obtain an improvement in terms of quantity of lubricating oil O retained.
    And, in the timepiece 1 and the movement 10 according to the present embodiment, due to the provision of the exhaust mobile 35 described above, it is possible to obtain an improvement in terms of durability and ensuring operational reliability for a long period of time.
    Next, a modification of the first embodiment will be described. In the following, the components which are the same as those of the first embodiment described above are indicated by the same reference numerals, and a description thereof will be excluded.
    First modification [0072] While in the embodiment described above, the recesses 122 are of uniform width over their entire extent, this should not be interpreted in a restrictive manner.
    For example, as in the case of the supply portion 200 shown in FIG. 10, hollows 201 can be formed in a narrowing configuration with a progressively reduced width as they extend radially outward (downstream). In this case, it is possible for the lubricating oil O retained in the step-shaped portion 116, due to a capillary action or the like, to be actively circulated in the direction of the downstream side, so that the lubricating oil O can be more regularly supplied on the impulse surface 115c, which makes it possible to obtain an additional improvement in terms of lubrication performance.
    In addition, while in the embodiments described above, the recesses 122, 201 are formed to be continuous towards the impulse surface, this should not be interpreted in a restrictive manner.
    For example, as shown in fig. 11, a supply portion 204 can be formed by a plurality of alternating recesses 203a and 203b which differ in the direction of extension. More specifically, the supply portion 204 shown in FIG. 11 comprises first alternating recesses 203a extending inclined towards one side in the peripheral direction as they extend radially outwards, and second alternating recesses 203b inclined towards the other side in the peripheral direction as they extend radially outward. A plurality of first alternating recesses 203a are arranged at peripheral intervals to form rows of first alternating recesses 206, and second alternating recesses 203b are arranged at peripheral intervals to form a plurality of rows of second alternating recesses 207. And, the rows of first alternating recesses 206 and the rows of second alternating recesses 207 are arranged alternately in the radial direction to form the supply portion 204.
    Among the rows of alternate recesses 206 and 207, the row of outermost recesses (furthest downstream) in the radial direction (that is to say the row of alternating second recesses 207 in the example shown) is open on the impulse surface 115c of the tooth 114. In the example shown, the alternating recesses 203a and 203b extend in directions orthogonal to one another. In addition, the alternate recesses 203a and 203b are formed in a narrowing configuration with a progressively reduced width as they extend radially outward (downstream).
    In this configuration, the lubricating oil O retained in the step-shaped portion 116 progresses radially outward (downstream) within the alternating recesses 203a and 203b of the rows of alternating recesses 206 and 207 And, the lubricating oil O having reached the outer end portions in the radial direction of the alternating depressions 203a and 203b is supplied in the alternating depressions 203a and 203b of the rows of alternating depressions 206 and 207 adjacent to the outside in the radial direction before advancing again in the radial direction towards the outside. The above operation is repeated in each row of alternating recesses 206, 207, so that the lubricating oil O is supplied on the impulse surface 115c.
    In this way, a plurality of alternating recesses 203a and 203b is arranged, which makes it possible to obtain the same effect as that of the first embodiment and to provide the area required for the portion d 'food
    CH 709 264 B1
    204, so that it is possible to obtain an improvement in oil holding performance for the lubricating oil O. The design pattern and configuration of the alternate recesses 203a and 203b allow a change in design depending on the situation.
    A supply portion 210 shown in FIG. 12 has protuberances 211 formed on the whole of the lower portion 116a of the step-shaped portion 116. These protuberances 211 have a step progressively reduced in the direction of the outside in the radial direction. More specifically, the supply portion 210 comprises a first zone Q1 in which the protuberances 211 are arranged with a first pitch, a second zone Q2 in which the protuberances 211 are arranged with a second pitch smaller than the first pitch, and a third zone Q3 in which the protrusions 211 are arranged with a third step smaller than the second step. The third zone Q3 is formed to extend from the impulse surface 115c to the rest surface 115a and to the rear surface 115b.
    In this configuration, the lubricating oil O retained in the step-shaped portion 116 progresses progressively from zone Q1 towards zone Q3, in which the protuberances 211 are arranged with a smaller pitch, due to the capillary action or the like, which makes it possible to regularly supply the lubricating oil O on the pulse surface 115c, thereby obtaining a further improvement in lubricating performance. Regarding the pitch of the protrusions 211, it can be reduced in stages or gradually.
    Second modification While in the first embodiment described above, the supply portion is formed so that the lubricating oil O of the step-shaped portion 116 is supplied on the surface of impulse 115c, this should not be interpreted restrictively. For example, the feed portion can be formed such that the lubricating oil O of the step-shaped portion 116 is supplied to the spout 115d.
    For example, in the case of a recess 221 of the supply portion 220 shown in FIG. 13, the upstream end (the inner end portion in the radial direction) of these is located at the boundary portion between the lower portion 116a and the ascending portion 116b of the step-shaped portion 116 , and the downstream end (the outer end portion in the radial direction) of these is open on the rest spout 115d of the tooth 114. The recess 221 is formed with a uniform width over its entire length.
    In this configuration, the lubricating oil O of the step-shaped portion 116 is supplied regularly to the spout 115d, so that it is possible to ensure the lubrication performance, in particular, between the spout 115d and the paddles 144a and 144b.
    In addition, as in the case of the supply portion 220 shown in FIG. 14, the recess 221 can be formed in a narrowing configuration with a gradually reduced width as it extends downstream.
    In addition, as shown in FIG. 15, it is also possible to have a plurality of alternating hollows (first alternating hollows 222a and second alternating hollows 222b) whose direction of extension differs to thereby form the supply portion 220.
    In addition to the first modification and the second modification described above, it is also possible to adopt, for example, the following configuration.
    For example, the width of the recesses allows a design change depending on the situation. In this case, as shown in fig. 16, the supply portion 231 can be formed so that the recesses 230 are of greater width than the portions other than the recesses 230. In the example shown, among the recesses 230, the recesses 230 located at the the level of both sides in the peripheral direction are open to the outside in the peripheral direction (the rest surface 115a and the rear surface 115b).
    Second Embodiment Next, a second embodiment of the present invention will be described. The present embodiment differs from the first embodiment described above in that there is provided a recovery portion 300 configured to recover the lubricating oil O existing on the sliding surface 115, and bring it to the portion in the form of a step 116. FIG. 17 is an enlarged view of tooth 114, the portion (a) of which is a plan view and the portion (b) of which is a sectional view taken along line X5-X5 of the portion (a).
    As shown in fig. 17, the recovery portion 300 has a recess 302 extending while being inclined towards one side in the peripheral direction as it extends radially outwards. More specifically, the outer end portion in the radial direction of the recess 302 is open to the impulse spout 115e, and the inner end portion thereof is located at the boundary portion between the lower portion 116a and the ascending portion 116b of the step-shaped portion 116. From the hollow 302, the distal end side in the direction of extension constitutes the upstream side in the direction of progression, and the proximal end portion in the direction of extension constitutes the downstream side.
    In FIG. 9, the lubricating oil O existing between the sliding surface 115 of the tooth 114 and the outlet pallet 144b remains mainly on the sliding surface 115 (in particular, the peripheral region of the impulse nozzle
    CH 709 264 B1
    115e) when the tooth 114 and the output pallet 144b are placed in the separated state. The lubricating oil O remaining on the sliding surface 115 flows into the hollow 302 of the recovery portion 300 due to capillary action or the like, and progresses within the hollow 302 in the direction of the downstream side. Therefore, it is possible to regularly recover the lubricating oil O remaining on the sliding surface 115, so that it is possible to remove the adhesion of lubricating oil O to portions other than the sliding surface. 115, and reducing the rate of decrease of the lubricating oil O in the step-like portion 116. Therefore, it is possible to obtain an improvement in durability.
    Next, a modification of the second embodiment will be described. Also in the second embodiment, it is possible to adopt a configuration similar to that of the first modification of the first embodiment described above.
    That is to say, as in the case of the recovery portion 300 shown in FIG. 18, the hollow 302 can be formed in a narrowing configuration with a progressively reduced width as it extends radially inwards (downstream).
    In addition, as shown in FIG. 19, it is also possible to have a plurality of alternating recesses (first alternating recesses 310a and second alternating recesses 310b) whose direction of extension differs to form the recovery portion 300.
    Third embodiment [0094] Next, a third embodiment of the present invention will be described. Fig. 20 is an enlarged view of tooth 114, the portion (a) of which is a plan view of tooth 114, and the portion (b) is a section view taken along line X6-X6 of the portion ( at).
    As shown in fig. 20, in the case of tooth 114 of the present embodiment, a routing portion 350 advancing the lubricating oil O between the surface has been disposed on the lower portion 116a of the step-shaped portion 116 sliding 115 and the step-shaped portion 116 of the tooth 114. The routing portion 350 comprises a supply portion 351 supplying the lubricating oil O to the sliding surface 115, from the step-shaped portion 116, and a recovery portion 352 recovering the lubricating oil O from the sliding surface 115, intended for the step-shaped portion 116.
    More specifically, a recess 354 of the supply portion 351 has the same configuration as that of FIG. 13, and the outer end portion (downstream end) in the radial direction is open on the spout 115d.
    On the other hand, a recess 355 of the recovery portion 352 has the same configuration as that shown in FIG. 17, and the outer end portion (upstream end) in the radial direction is open on the pulse nozzle 115e.
    In this configuration, the lubricating oil O in the step-shaped portion 116 is supplied to the rest spout 115d via the hollow 354 of the supply portion 351; then, with the sliding movement between the sliding surface 115 of the tooth 114 and the vanes 144a and 144b, it reaches the side of the impulse spout 115e. Then, the lubricating oil O having reached the impulse spout 115e is recovered in the step-shaped portion 116 via the hollow 355 of the recovery portion 352.
    In this way, it is possible to circulate the lubricating oil O between the step-shaped portion 116 and the sliding surface 115, so that it is possible to ensure the performance of lubrication and d '' improve sustainability.
    Next, modifications of the third embodiment will be described. First modification [0100] In the third embodiment also, it is possible to adopt the same configuration as that of the modifications of the first and second embodiments described above.
    That is to say, as shown in FIG. 21, the recess 354 of the supply portion 351 can be formed in a narrowing configuration with a progressively reduced width as it extends radially outward (downstream), and the recess 355 of the recovery portion 352 can be formed in a narrowing configuration with a progressively reduced width as it extends radially inward (downstream).
    In addition, as shown in FIG. 22, a plurality of alternating hollows (first alternating hollows 222a, 310a and second alternating hollows 222b, 310b) which differ in the direction of extension can be arranged to form the feeding portion 351 and the recovery portion 352, respectively. In this case, it is desirable that the first alternating recesses 222a and the second alternating recesses 222b of the supply portion 351 are formed in a narrowing configuration with a progressively reduced weight as they extend in a radial direction towards the outside (downstream), and that the first alternating recesses 310a and the second alternating recesses 310b of the recovery portion 352 are formed in a narrowing configuration with a progressively reduced weight as they extend towards the interior (downstream).
    CH 709 264 B1
    Second modification [0103] While in the third embodiment described above, only the hollow open on the spout 115d is arranged as a feeding portion, this should not be interpreted in a restrictive manner. For example, as shown in fig. 23, a plurality of recesses 401 can be arranged as a supply portion 400, and these recesses 401 can be individually opened on the rest spout 115d and on the impulse surface 115c. In the example shown, among the three recesses 401, two recesses 401 are open on the impulse surface 115c, and the remaining recess 401 is open on the rest spout 115d.
    As shown in FIG. 24, the hollows 401 of the supply portion 400 can be formed in a narrowing configuration with a progressively reduced weight as they extend radially outward (downstream).
    In addition, as shown in FIG. 25, the alternating recesses of the supply portion 400 (first alternating recesses 410a and second alternating recesses 410b) can be arranged so as to be directed towards the impulse surface 115c and the rest spout 115d.
    Third modification [0106] Whereas, in the third embodiment and its first modification, the routing portion has the feeding portion and the recovery portion separately, this should not be interpreted in a restrictive manner; it is also possible to form a routing portion in which the feeding portion and the recovery portion are integrated.
    For example, the routing portion 450 shown in FIG. 26 have an arched recess 451 curved radially inwards as it extends from the impulse spout 115e to the rest spout 115d. The hollow 451 extends with a uniform width over its entire length; one end portion (upstream end) is open there on the impulse spout 115e, and the other end portion (downstream end) thereof is open on the rest spout 115d. The middle portion in the direction of extension of the recess 451 is close to the ascending portion 116b of the step-shaped portion 116. And, in the recess 451, the side at the level of the rest spout 115d forms a portion of feed 452, and the side at the level of the impulse spout 115e forms a recovery portion 453.
    In this configuration, the lubricating oil O in the step-shaped portion 116 passes through the hollow 451 of the routing portion 450 to be supplied on the rest spout 115d; then it reaches the impulse spout 115e with the sliding movement between the sliding surface 115 of the tooth 114 and the paddles 144a and 144b. And, the lubricating oil O having reached the impulse spout 115e passes through the hollow 451 of the routing portion 450 to be recovered in the step-shaped portion 116 before being supplied again on the spout rest 115d.
    In this way, the supply portion 452 and the recovery portion 453 are integrated by means of the recess 451, which makes it possible to make the flow of the lubricating oil O in the portion 450 more regular routing.
    As shown in FIG. 27, the recess 451 of the above-mentioned routing portion 450 can be formed in a narrowing configuration with a progressively reduced weight as it extends from the side of the pulse nozzle 115e (upstream end) to the side of the spout 115d (downstream end).
    While in the third modification described above, the hollow 451 of the conveying portion 450 forms a bridge between the impulse spout 115e and the rest spout 115d, this should not be interpreted in a way restrictive. For example, as in the case of the routing portion 460 shown in FIG. 28, it is possible to adopt a configuration in which the hollow 461 forms a bridge between the impulse spout 115e, the rest spout 115d, and the impulse surface 115c.
    In addition, as shown in FIG. 29, the recess 461 of the conveying portion 460 can be formed in a narrowing configuration with a progressively reduced weight as it extends from the side of the impulse spout 115e towards the side of the rest spout 115d and towards the side of the pulse surface 115c.
    Other modifications [0113] While, in the embodiments and modifications described above, the feeding portion is formed on a main surface of the tooth 114, this should not be interpreted in a restrictive manner; as shown in fig. 30, the feeding portion can be formed on the other main surface of the tooth 114. In the example shown, the same recesses 122 as those in FIG. 4 are arranged in feed portions 500a and 500b formed on the respective main surfaces of the tooth 114. However, this should not be interpreted in a restrictive manner, and it is possible to adopt the configurations of the embodiments and modifications. described above.
    In addition, while in the embodiments and modifications described above, the step-shaped portion 116 is formed on a main surface of the tooth 114, this should not be interpreted restrictively; as shown in fig. 31, the step-shaped portion 116 can also be formed on the other main surface of the tooth 114.
    CH 709 264 B1 [0115] In addition, while, in the embodiments described above, the oil retaining portion is produced in the form of the step-shaped portion 116, this should not be interpreted restrictively. For example, as shown in fig. 32, the oil retaining portion can be produced in the form of a through hole 510 extending through the tooth 114 in the axial direction, the lubricating oil O being retained in the through hole 510. In this Also, it is desirable to have the routing portion 520 circulating the lubricating oil O between the interior of the through hole 510 and the sliding surface 115. In the example shown, the routing portion 520 comprises a recovery portion 522 having a recess 521 communicating with the interior of the through hole 510 and open on the impulse spout 115e, and a supply portion 524 having a plurality of recesses 523 communicating with the interior of the through hole 510 and individually open on the impulse surface 115c and on the rest spout 115d.
    In addition, as shown in FIG. 33, it is also possible to arrange the routing portion 520 on one and the other of the main surfaces of the tooth 114, and to circulate the lubricating oil O between the openings at the level of one and the other of the ends of the communication portions 520 and of the sliding surface 115.
    The specific configuration of the present invention is not limited to the embodiments described in detail above with reference to the figures; it also includes design changes, etc. without departing from the scope of the spirit of the present invention.
    For example, while in the embodiments and modifications described above, a hollow is adopted for the supply portion and the recovery portion, this should not be interpreted in a restrictive manner; it is possible to adopt various other configurations.
    Regarding the dip pattern, it allows a design change depending on the situation.
    Furthermore, while in the embodiments and modifications described above, the hollow is formed in a narrowing configuration with a progressively reduced width as it extends from upstream to downstream in the direction of progression of the lubricating oil O, this should not be interpreted restrictively; it is also possible to make a change in depth along the direction of travel.
    In addition, while, in the embodiments and modifications described above, the hollows of the routing portion are open on the sliding surface 115, this should not be interpreted in a restrictive manner.
    In addition, while in the embodiments and modifications described above, the oil retaining portion is formed by the step-shaped portion 116 or the through hole 510, this should not be interpreted restrictively; any other configuration will work as long as it can hold O lubricating oil.
    In addition, depending on the situation, the components of the embodiments described above can be replaced by other well-known components; in addition, depending on the situation, it is also possible to combine the embodiments and modifications described above.
    权利要求:
    Claims (10)
    [1]
    claims
    1. Mobile exhaust including:
    an escape wheel (101) provided to interact with an anchor (36);
    an oil retaining portion (116; 510) formed on the escapement wheel and configured to retain oil (O); and a conveying portion (121; 200; 204; 210; 220; 231; 300; 350; 400; 450; 460; 520) configured to convey oil between a sliding surface (115) of the wheel d exhaust intended to slide on the anchor and the oil retaining portion.
    [2]
    2. exhaust mobile according to claim 1, wherein the routing portion comprises a supply portion (121; 200; 204; 210; 220; 231; 351; 400; 452; 524) provided to supply l oil at the sliding surface from the oil retaining portion.
    [3]
    3. exhaust mobile according to claim 1 or claim 2, wherein the conveying portion comprises a recovery portion (300; 352; 453; 522) for recovering oil from the sliding surface and the bring to the oil retaining portion.
    [4]
    4. exhaust mobile according to one of claims 1 to 3, wherein the routing portion comprises a recess (122; 201; 203a, 203b; 221; 222a, 222b; 230; 302; 310a, 310b; 354 , 355; 401; 410a, 410b; 451; 461; 521.523) hollowed out in the thickness direction of the escape wheel and going from the oil retaining portion to the sliding surface.
    [5]
    5. Mobile exhaust according to claim 4, wherein the hollow is reduced in width from upstream to downstream, in the direction of oil progression.
    [6]
    6. exhaust mobile according to one of claims 1 to 5, wherein the routing portion comprises a plurality of protrusions (211) projecting in the thickness direction of the escapement wheel; and the pitch of the protrusions is gradually reduced from the upstream side to the downstream side, in the direction of oil progression.
    CH 709 264 B1
    [7]
    7. Exhaust mobile according to one of claims 1 to 6, wherein the oil retaining portion is a step-shaped portion (116) hollowed out in the thickness direction of the escape wheel.
    [8]
    8. exhaust mobile according to one of claims 1 to 6, wherein the oil retaining portion is a through hole (510) extending through the exhaust wheel in the thickness direction.
    [9]
    9. Movement, comprising an exhaust mobile (35) according to any one of claims 1 to 8.
    [10]
    10. Timepiece, comprising a movement (10) according to claim 9.
    CH 709 264 B1
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    同族专利:
    公开号 | 公开日
    JP6355358B2|2018-07-11|
    JP2015152498A|2015-08-24|
    CH709264A2|2015-08-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CH220529A|1941-08-08|1942-04-15|Frey & Co Montres Frey Societe|Anchor escape wheel with pegs.|
    CH305169A|1952-03-10|1955-02-15|Lip Horlogerie|Device for lubricating moving parts.|
    CH685463B5|1993-09-28|1996-01-31|Hormec Technic Sa|Anchor palette movement horlogeie.|
    EP1517198A1|2003-09-22|2005-03-23|Eterna SA|Escapement wheel|
    EP2607971A1|2011-12-22|2013-06-26|The Swatch Group Research and Development Ltd.|Method for manufacturing a component|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP2014027953A|JP6355358B2|2014-02-17|2014-02-17|Escape wheel, movement and watch|
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