• 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 a timepiece avoiding an unfortunate rotation of a drive ring. The timepiece comprises: a winding stem tube of elastic material projecting on the outer side of a box and a distal end portion of which is able to be deformed elastically in a radial direction; a shaft (58) having a drive ring inserted into the winding shaft tube for rotation, projections (80) formed on the peripheral surface of the ring or tube; and splines (48) formed on the peripheral surface of the winding stem tube or crown and shaped to engage the projections (80). The crown thus provides tactile feedback to the user.
    公开号:CH714764A2
    申请号:CH00264/19
    申请日:2019-03-05
    公开日:2019-09-13
    发明作者:Iguchi Katsunobu
    申请人:Seiko Instr Inc；
    IPC主号:
    专利说明:

    CH 714 764 A2
    Description
    BACKGROUND
    Field [0001] The present invention relates to the structure of a timepiece.
    Description of the Related Prior Art For example, in a common conventional timepiece fitted with an internally rotating ring, it is possible to hold a rotating toothed wheel installed on the shaft of a crown d drive and a toothed wheel formed on the internally rotating ring, with each other, and freely determine the rotational position of the internally rotating ring, by turning the drive ring. No feeling of actuation is felt, however, when the drive gear is rotated. In other words, the rotational position of the drive crown, that is to say the rotational position of the internally rotating ring, is only maintained by the resistance of storage in the crown. drive and friction between components. When they rotate the drive crown, the fingers feel generally free. In other words, they only receive constant resistance.
    A document of the prior art (for example JP-A-2017-32,286 (patent document 1)) discloses a timepiece provided with a rotary operating device in which a movable toothed wheel having projections and recesses is slidably mounted on the shaft of a sliding crown and which is equipped with a fixed toothed wheel having projections and recesses in correspondence with the movable toothed wheel, on a cylinder installed in a container, as well as a spring element pushing the projections and hollows of the movable toothed wheel against the projections and hollows of the fixed wheel. Because of this constitution, in the timepiece of the document of the prior art, it is possible to feel a tactile sensation when the drive crown is rotated.
    In the rotary actuator of the document of the prior art, it is however necessary to provide a spring element for pushing the projections and recesses of the movable toothed wheel against the projections and recesses of the fixed toothed wheel, this which results in an increase in the number of components and cost, compared to common conventional timepieces. Therefore, there is room for improvement.
    In addition, in the rotary actuator of the document of the prior art, a clearance for sliding the shaft portion exists between an insertion hole that the sliding gear a and the portion of drive crown shaft inserted into this insertion hole. Thus, even when the movable toothed wheel is at rest, the drive ring is rotated a little in the direction of rotation. In other words, the drive ring clicks in the direction of rotation. Therefore, there is room for improvement.
    SUMMARY The present invention has been made in view of the above problems. An object of the present invention is to provide a timepiece which provides a tactile sensation with a simple constitution and which can prevent inadvertent rotation of the crown.
    According to a first aspect, a timepiece is proposed comprising: a tubular element which protrudes on an external side of a box and of which a distal end part is able to be elastically deformed according to a radial direction; a crown inserted in the tubular element so as to be rotatable; protrusions and recesses formed on a peripheral surface of one of the elements that are the tubular element and the crown; and an engaging portion which is formed on a peripheral surface of the other member among the tubular member and the crown and which is engaged with the projections and recesses.
    In the timepiece according to the first aspect, during periods of no operation other than the periods during which the operator voluntarily rotates the crown to transmit an actuating force to the mechanism in the case, l 'state in which the part to be engaged is engaged with the projections and hollow is maintained, whereby it is possible to avoid an inadvertent rotation of the crown.
    In this way, in the state where the projections and recesses and the part to be engaged are engaged with each other, if an attempt is made to rotate the crown in one direction or the other, the crown does not rotate if the tubular member is deformed to loosen the coupling between the projections and recesses and the part to be engaged.
    To elastically deform the tubular element when the projections and hollows and the part to be engaged are engaged with each other, it is necessary to apply a certain degree of rotational force (torque) to the crown, so that it is possible to prevent rotation of the crown resulting from a force as it exerts when the crown comes to touch any object. As a result, it is possible to prevent an inadvertent movement of the mechanism connected to the crown.
    On the other hand, in the case where the crown must be turned, the crown is pinched with the fingers and it is forced to rotate so as to undo the coupling between the projections and recesses and the part to be in outlet. When we force
    CH 714 764 A2 With the crown rotating, the tubular element is elastically deformed so as to undo the coupling between the projections and the recesses and the part to be engaged and, at the same time, a tactile sensation is felt.
    In addition, in the timepiece according to the first aspect, it is possible to prevent an inadvertent rotation of the crown with a simple constitution in which the tubular element and the crown are combined.
    According to a second aspect, a timepiece according to the first aspect is proposed, in which the part of the tubular element capable of being elastically deformed is formed by a divisional element obtained by peripheral division by several grooves extending from a distal end to a proximal end of the tubular member and formed at regular intervals.
    In the timepiece according to the second aspect, the divisional element is obtained by peripheral division of a part of the tubular element by several grooves extending from a distal end towards a proximal end of the element tubular. The divisional element thus formed is an elastic deformable part subject to elastic deformation in the radial direction. Furthermore, the elastic deformable part can be produced by machining grooves in the tubular element, so that the elastic deformable part need not be provided as a separate component from the tubular element and no increase in the number of components is not caused.
    According to a third aspect, a timepiece according to the second aspect is proposed, in which, at its proximal end, the divisional element has a portion shaped as a thin wall which is thinner than the end distal.
    In the timepiece according to the third aspect, the portion shaped as a thin wall is formed at the proximal end of the divisional element, whereby the divisional element is best offered for elastic deformation according to the radial direction, compared to the case where no portion shaped as a thin wall is formed. In addition, by varying the thickness of the portion shaped as a thin wall, it is possible to adjust the ease of deforming (spring stiffness) the divisional element, which makes it possible to adjust the difficulty of rotating the crown, c that is, the torque required to rotate the crown.
    According to a fourth aspect of the present invention, there is provided a timepiece according to any of the first to third aspects, in which the crown comprises a shaft and a cap-shaped head which is connected to the 'distal end of the tree and whose box side is open; wherein a protrusion which forms the engaging portion is formed on an inner peripheral portion of the head; and in which the projections and recesses are formed on an external peripheral portion of the tubular element.
    In the timepiece according to the fourth aspect, the projection of the crown is engaged with the projections and recesses formed on the outer peripheral portion of the tubular element, whereby it is possible to prevent an inadvertent rotation of the crown.
    According to a fifth aspect of the present invention, there is provided a timepiece according to any of the first to the third aspects, in which the crown comprises a shaft and a cap-shaped head which is connected to a distal end of the tree and the box side is open; wherein the protrusions and hollows are formed on an outer peripheral portion of the shaft; and wherein the part to be engaged is formed on an inner peripheral portion of the tubular member.
    In the timepiece according to the fifth aspect, the part for engaging the tubular element is engaged with the projections and recesses formed on the outer peripheral portion of the shaft, whereby it is possible to '' prevent inadvertent rotation of the crown.
    As described above, with the timepiece of the present invention, it is possible to feel a tactile sensation with a simple constitution and to prevent an inadvertent rotation of the crown.
    BRIEF DESCRIPTION OF THE DRAWINGS
    Fig. 1 is an exploded perspective view of a wristwatch according to a first embodiment of the present invention.
    Fig. 2 is a front view, partially broken away, of the wristwatch according to the first embodiment.
    Fig. 3 is a section along line 3-3 of the wristwatch shown in FIG. 2.
    Fig. 4 is an exploded perspective view of a drive crown and of peripheral components constituting the wristwatch according to the first embodiment.
    Fig. 5 is a section along line 5-5 of the wristwatch shown in FIG. 3.
    Fig. 6 is a perspective view of the drive crown of the wristwatch according to the first embodiment.
    CH 714 764 A2
    Fig. 7 is a section of a main part of a wristwatch according to a second embodiment of the present invention.
    Fig. 8 is a section along line 8-8 of the wristwatch shown in FIG. 7.
    Fig. 9 is an exploded view, in perspective, of a drive crown and of peripheral components constituting the wristwatch according to the second embodiment.
    Fig. 10 is a perspective view of a head of the drive crown constituting the wristwatch according to the second embodiment.
    Fig. 11 is a section of a drive crown, a portion of a shaft and a winding stem tube made of elastic material of a wristwatch according to a third embodiment.
    DESCRIPTION OF THE EMBODIMENTS
    First embodiment The first embodiment of the present invention will be described with reference to FIGS. 1 to 6, as shown in fig. 1 and 2, a wristwatch 10 comprises a box 12 forming an external envelope. The strap of wristwatch 10 is omitted from the drawings.
    As shown in Figs. 2 and 3, mechanisms such as a dial 14, a movement 18 controlling the movement of the time indicator hands to indicate the time, as well as a turned element, for example an internally rotating crown 20, are housed in the box 12. The movement 18 is housed in the box 12, with a movement retaining ring 19A and an intermediate frame 19B. The turned element is not limited to the internally rotating ring 20 described below. It is only necessary that the turned element is something that is housed in the box 2 so as to be rotatable and that it is rotated by means of an operation carried out from outside the box 12.
    As shown in fig. 2, the dial 14 is circular and has, at the peripheral portion, a graduation indicating the time 22. As shown in fig. 3, the hour indicator hands 16 of this embodiment include an hour hand 16A, a minute hand 16B and a second hand 16C.
    As shown in fig. 2, in the 3 o'clock direction of the wristwatch 10, a time correction crown 24 is mounted so as to be rotatable relative to the case 12. On the outside of the case 12, the crown is rotated for correcting the hour 24. The rotation of the crown for correcting the time 24 is transmitted to a gear train (not shown) of the movement 18 in order to deflect, for example, the minute hand 16B, adjusting the position of this minute hand 16B.
    The internally rotating ring 20 is placed on the front surface side of the peripheral portion of the dial 14 so as to be rotatable. The internally rotating ring 20 is made, for example, of synthetic resin and is in the form of a crown in a plan view, as shown in FIG. 2. As shown in fig. 3, the external diameter of the internally rotating ring 20 is larger than the diameter (external diameter) of the dial 14, while the internal diameter of the internally rotating ring 20 is smaller than the diameter of the dial 14.
    As shown in fig. 3, the thickness of the internally rotating ring 20 gradually increases from the inner periphery to the outer periphery. The oblique and annular surface of the internally rotatable ring 20 thus formed serves as a display surface 20A and a display 26 is provided on the display surface 20A as shown in fig. 1. The display 26 is, for example, a graduation produced by printing or the like at regular intervals along the peripheral direction of the internally rotating ring 20. For example, it is possible to carry out a timing function by which a duration elapsing from a predefined instant in time is measured via a modification of the relative position of the display 26 moved to a predetermined position by rotation of the internally rotating ring 20 and the indicator needles hour 16.
    The display 26 of the internally rotating ring 20 is not limited to a graduation but may consist of several display regions divided by different colors from each other. As an alternative, the display 26 can consist of symbols represented respectively on several united display regions (for example a symbol of the sun representing the day and a symbol of the moon representing the period after sunset). Furthermore, instead of functioning as a stopwatch, the display 26 can be a direction display (N, O, S, E, etc.) allowing a simple direction measurement.
    While, as described above, the internally rotating ring 20 should be in the form of a ring in a plan view, this should not be interpreted in a restrictive manner. In the case where the internally rotatable ring 20 is in the form of a ring in a plan view, it may be in the form of a closed loop in a plan view or it may have opposite ends so as to be in the form of a C in a plan view.
    As shown in figs. 1 and 3, on the rear surface side of the internally rotating ring 20, an offset toothed portion 28 is provided near the outer peripheral edge. The offset toothed portion 28 is what is called
    CH 714 764 A2 commonly a crown wheel. It has a plurality of teeth extending in radial directions from the internally rotating ring 20 and formed at regular intervals. The offset toothed portion 28 is located on the outer side, in the radial direction, of the outer peripheral edge of the dial 14.
    As shown in fig. 3, an annular bezel 30 constituting the box 12 is attached to the front surface side, in the thickness direction, of a case middle 12A formed annularly and it is so liquid-tight by means of the setting sandwich of an annular bezel fixing joint 32. As a transparent cover, a circular glass 36 is attached to the inner peripheral side of the annular bezel 30, in a liquid-tight manner by means of a sandwiching of a circular glass fixing joint 34. The dial 14, the hour indicator hands 16 and the internally rotating ring 20 are visible through this glass 36.
    In addition, a box bottom 38 constituting the box 12 is attached to the rear surface side, in the direction of the thickness, of the case middle 12A, in a liquid-tight manner by means of a setting sandwich of an annular seal 39. The bottom of the box 38 of this embodiment is a threaded bottom. Although it is desirable that the box 12 is made of a metal such as stainless steel or such as titanium, it can also be made of synthetic resin, ceramic or the like.
    An annular projection 40 projecting inwardly in the radial direction is formed on the inner peripheral portion of the bezel 30. The outer peripheral surface of the crystal 36 is in contact with the inner peripheral portion of the bezel 30 on the surface side of the timepiece part of the annular projection 40 and the rear surface of its peripheral portion is in contact with the annular projection 40 to be supported by the bezel 30.
    This annular projection 40 covers the outer peripheral portion of the internally rotating ring 20, on the front surface side of the timepiece. As a result, the internally rotating ring 20 is supported so as to be rotatable relative to the dial and to the annular projection 40 and so as not to be movable in the thickness direction of the wristwatch 10. In further, the inner peripheral surface of the bezel 30 located on the rear side of the annular projection 40 is close to the outer peripheral surface of the internally rotatable ring 20, whereby the internally rotatable ring 20 is carried by the bezel 30 of so that it cannot be moved in the radial directions.
    Click mechanism [0036] As shown in figs. 3 and 4, at a position offset from a mounting position of the time correction crown 24 and, in the present embodiment, in the four o'clock direction (see fig. 2) , the case middle 12A has a through hole 42 extending in a radial direction. A winding stem pipe made of elastic material 44 is inserted into the through hole 42.
    The winding stem pipe made of elastic material 44 has a stepped cylindrical shape (with shoulder) comprising a large diameter part 44A and a small diameter part 44B, the small diameter part 44B being inserted in the through hole 42 for fixing by adhesive or the like. The large diameter part 44A of the winding stem pipe made of elastic material 44 is placed outside the box 12, its end surface on the side of the small diameter part 44B being in contact with the external surface of the box 12. The end of the small diameter part 44B opposite the large diameter part 44A projects on the inside of the box 12.
    As shown in Figs. 4 and 5, a rib knurling 46 is formed on the outer peripheral surface of the large diameter portion 44A. At the rib knurling 46, teeth 46A in the form of a V (triangular in the present embodiment) extending in the axial direction are arranged at regular intervals. In the present embodiment, eighteen teeth 46A are formed on the outer peripheral surface of the large diameter portion 44A. It is desirable that the teeth 46A have a thinner shape. The shape is not limited to the triangular shape. For example, the distal end of the triangle can be rounded. It can also be an isosceles trapezoid or the like. In the present description, the hollow portions between the teeth 46A are called the grooves 48. The teeth 46A and the grooves 48 of the present embodiment are examples of the projections and hollows of the present invention.
    As shown in figs. 4 and 5, the large diameter portion 44A has four expansion slots 50 extending in the axial direction and formed with an interval of 90 degrees between them. The expansion slots 50 are formed from the end of the large diameter portion 44A opposite the small diameter portion 44B, up to the vicinity of the shouldered portion. In other words, the bottoms of the expansion slots 50 are located in the vicinity of the shoulder portion.
    As shown in fig. 5, the portions forming part of the large diameter portion 44A and lying between the expansion slots 50 are constituted as elastically deformable elements 52 having an arcuate shape when viewed in the axial direction.
    As shown in figs. 3 and 4, the outer peripheral surface of the large diameter portion 44A has an annular groove 54 on the outer side of the bottoms of the expansion slots 50, which reduces the thickness of the proximal portion of the elastically deformable element 52 This portion in which the thickness of the elastically deformable element 52 is reduced is an example of the portion shaped as a thin wall of the present invention. As a result, the elastically deformable element 52 is capable of elastic deformation so as to be inclined in the interior direction
    CH 714 764 A2 radially outer, with the annular groove 54 used as a pivot. The winding stem pipe made of elastic material 44 of the present embodiment can be produced, for example, by cutting a metal such as stainless steel. As shown in figs. 3 and 6, a one-piece shaft 58 with the drive crown 56 is inserted into the small diameter portion 44B of the winding stem pipe made of elastic material 44. The drive crown 56 is used to rotate the rotary ring internally 20. When the drive ring 56 is rotated outside the box 12, the internally rotatable ring 20 rotates concomitantly with it. The drive crown 56 and the shaft 58 are an example of the crown of the present invention, while the drive crown 56 is an example of the head of the present invention.
    The drive ring 56 forming the head is in the form of a cap comprising a peripheral wall 62 in the form of a ring and an end wall 64 closing one end of this peripheral wall 62. The external peripheral surface of the wall peripheral 62 has a knurled rib 60 to prevent slipping of the fingers of a user rotating this drive crown 56.
    The section of the shaft 58 perpendicular to the axis has a circular shape except for a portion at the distal end. Its total length is greater than the total length of the winding stem pipe made of elastic material 44. At the distal end, part of the outer peripheral portion of the shaft 58 is machined so as to be plane to form a shoulder 66. The portion of the shaft 58 machined to be planar has a section perpendicular to the axis which is in the form of D. Hereinafter in the present description, the portion of the shaft 58 whose section is in D shape is called the irregularly shaped section portion of tree 58A.
    At the portion from the connection on the drive crown side 56 to the shoulder 66, the diameter of the external peripheral surface of the shaft 58 is constant and slightly smaller than the internal diameter of the part of small diameter 44B of the winding stem pipe made of elastic material 44. In what follows, the portion of the shaft 58 whose diameter is constant is called the portion of shaft of constant diameter 58B. This portion of constant diameter shaft 58B is rotatable when it is inserted into the hole of the small diameter portion 44B of the winding stem pipe made of elastic material 44.
    At an intermediate portion in its longitudinal direction, the constant diameter shaft portion 58B of the shaft 58 has an annular mounting groove 68 continues in the peripheral direction. An annular seal 70 sealingly sealing the space between the winding stem pipe made of elastic material 44 and the shaft 58 is mounted in this mounting groove 68.
    As shown in fig. 3, a drive wheel 72 transmitting the rotation of the drive ring 56 to the internally rotatable ring 20 is mounted on the shaft portion of irregularly shaped section 58A of the shaft 58. As shown in FIG . 4, the drive wheel 72 has a hole for interlocking engagement 74 having a shape corresponding to the cross-sectional shape of the irregularly shaped section of the shaft portion 58A, and this shaped section of the tree portion irregular 58A of the shaft 58 is engaged by interlocking with this hole to be engaged by interlocking 74. On the distal end side of the portion of shaft of irregularly shaped section 58A, an annular groove 76 is formed which is peripherally continuous and, by mounting a retaining ring 78 in this groove 76, the drive wheel 72 is mounted in a state where it is prevented from rotating at the level of the irregularly shaped section of the shaft portion 58A, between the retainer 78 and shoulder 66.
    As a result, the drive wheel 72 permanently meshes with the offset toothed portion 28 of the internally rotating ring 20.
    As shown in Figs. 5 and 6, three protrusions 80 projecting inwardly in the radial direction are formed at regular intervals on the inner peripheral surface of the peripheral wall 62 of the drive ring 56. As shown in FIG. 5, the protrusions 80 are in the form of a chevron, the apex of which is arched when viewed in the axial direction of the drive crown 56. The protrusions 80 are an example of the protrusion which forms the part for engaging the present invention.
    As shown in figs. 3 and 5, the large diameter portion 44A of the winding stem pipe made of elastic material 44 is inserted into the annular space located between the peripheral wall 62 of the drive crown 56 and the shaft 58.
    As shown in fig. 5, normally, each of the projections 80 of the drive crown 56 enters one of the grooves 48 between the teeth 46A of the winding stem pipe made of elastic material 44 so as to be in contact with the inclined surface of a tooth 46A and the inclined surface of another tooth 46A. In other words, each projection 80 of the drive crown 56 is retained by being held between two teeth 46A.
    Operation and Effects In the following, the operation and the effects of the wristwatch 10 will be described.
    Normally (when the drive crown 56 is not operated), each projection 80 of the drive crown 56 enters a groove 48 between the teeth 46A of the winding stem pipe made of elastic material 44 like the shows fig. 5, and each projection 80 is kept retained by being held between two teeth 46A, so that
    CH 714 764 A2 when, for example, the drive ring 56 comes into contact with any object, it is possible to avoid inadvertent rotation of the drive ring 56. In other words, to turn the ring d drive 56, it is necessary to deform the elastically deformable elements 52 (as will be described in detail below) and, in order to rotate the drive crown 56, a certain level of torque (for example an intentional torque with which a operator tries to rotate the drive ring 56) is necessary, so that it is possible to prevent rotation of the drive ring 56 by the level of force exerted by the drive ring 56 touching a any object.
    In the wristwatch 10 of this embodiment, although the drive wheel 72 permanently meshes with the offset toothed portion 28 of the internally rotatable ring 20, it is possible to prevent an inadvertent rotation of the internally rotating ring 20 stopped by the drive crown 56 when, for example, the wristwatch is worn.
    In this way, an inadvertent rotation of the drive ring 56 is avoided and a malfunction of the internally rotating ring 20 is avoided, so that it is possible to avoid an unfortunate anomaly of the function (by example of the timing function) defined by the relationship between the display 26 of the internally rotating ring 20 and the time indication scale 22 of the dial 14 or the time indicator hands 16.
    Here, when the internally rotating ring 20 is to be rotated, the operator pinches the drive ring 56 with the fingers to rotate this drive ring 56. When the drive ring 56 is turned, the drive wheel 72 mounted on the drive ring 56 rotates the offset toothed portion 28 of the internally rotating ring 20, rotating this internally rotating ring 20 provided with the offset toothed portion 28.
    When the drive crown 56 is rotated, the projections 80 formed on the inner peripheral surface of the drive crown 56 push on the lateral teeth surfaces 46A of the winding stem pipe made of elastic material 44 and the elastically deformable elements 52 undergo an elastic deformation so as to be inclined inwards in the radial direction. In addition, when the drive ring 56 is continued to rotate, each projection 80 passes over the top of a tooth 46A to escape from a groove 48, and enters the next groove 48 located between tooth 46A which has just been crossed and another tooth 46A which is adjacent to tooth 46A which has just been crossed. When the projection 80 enters the next groove, the elastically deformable element 52 elastically deformed towards the inner side in the radial direction returns to its previous position in an elastic manner.
    In this way, the drive ring 56 is rotated and each projection 80 passes over the top of a tooth 46A and enters the next groove 48, whereby a tactile sensation is provided and the operator can noticeably determine that the drive gear 56 is rotating.
    As described above, a click structure intended to provide a tactile sensation can be formed by two components which are the drive crown 56 and the winding stem pipe made of elastic material 44, so that 'it is possible to realize a click mechanism of simple constitution.
    In addition, each projection 80 of the drive ring 56 enters a groove 48 between teeth 46A of the winding stem pipe made of elastic material 44 and each projection 80 is retained by being held in contact with two teeth 46A , so that it is possible to avoid rattling in the direction of rotation of the drive crown 56.
    In addition, the click mechanism can be assembled by means of the following simple operation: after having inserted the winding stem pipe of elastic material 44 in the through hole 42, the shaft 58 is inserted of the winding crown 56 in the winding stem pipe made of elastic material 44 and then the drive wheel 72 is fixed to the distal end of the shaft 58 with the retaining ring 78. In the present embodiment , when the shaft 58 is inserted, no repulsion due to a spring as in patent document 1 occurs, so that the assembly operation is facilitated.
    Although the rib knurling 46 formed on the winding stem pipe made of elastic material 44 has 18 teeth 46A in the wristwatch 10 of the present embodiment, the number of teeth 46A of the rib knurling may be greater than 18 or lower 18.
    In the wristwatch 10 of this embodiment, 18 grooves 48 are formed in the outer peripheral portion of the winding stem pipe made of elastic material 44 so that, when the drive crown 56 makes a revolution, a tactile sensation can be felt 18 times (i.e., each time the projection 80 passes over a tooth 46A, a tactile sensation is felt once).
    When the number of teeth of the drive wheel 72, the number of teeth of the offset toothed portion 28 and the number of clicks per rotation of the drive ring 56 are adjusted and the operator has entered the correspondence relationship between the number of clicks of the drive ring 56 and the angle by which the rotary ring is turned internally 20, the operator can rotate the rotary ring internally 20 by a predetermined rotation angle without visually checking the internally rotating ring 20, counting the number of clicks while the drive ring is rotated.
    CH 714 764 A2 For example, in the case of an internally rotating ring 20 designed to apprehend time, it is possible to match the number of clicks of the drive crown 56 to the angle of rotation of the internally rotating ring 20 (the time as indicated by display 26), while in the case of an internally rotating ring 20 designed to apprehend the direction, it is possible to match the number of clicks of the drive ring 56 at the rotation angle (steering angle) of the internally rotating ring 20.
    Normally (when the drive ring 56 is not operated), it is only necessary that at least one projection 80 of the drive ring 56 is retained while being held in contact with two teeth 46A of the pipe winding stem made of elastic material 44. Then, the elastically deformable element 52 may not be deformed or may be deformed somewhat inwards in the radial direction by being pushed by the projection 80. By putting the deformable element elastically 52 in a state in which it is somewhat deformed inwards in the radial direction by being pushed by the projection 80, it is possible to increase the torque necessary to rotate the drive crown 56, which allows to further prevent inadvertent rotation of the drive crown 56.
    Second embodiment We will describe the wristwatch 10 according to the second embodiment of the invention with reference to Figs. 7 to 10. The components which are the same as those of the first embodiment are designated by the same reference numbers and a description of them will be omitted.
    As shown in fig. 7, in the wristwatch 10 of the present embodiment, a winding stem pipe of elastic material 82 having a shape different from that of the winding stem pipe of elastic material 44 of the first embodiment is inserted into the hole crossing 42 of the box 12. As shown in figs. 7 to 9, the winding stem pipe made of elastic material 82 of the present embodiment comprises, on one side of a part of small diameter 82B in the form of a cylinder, a part of large diameter 82A having the shape of a section tube having a hexagonal shape. At all of the portions other than six corner portions, the large diameter portion 82A has expansion slots 84 extending in the axial direction. The expansion slots 84 are formed so as to extend from the end of the large diameter part 82A opposite the small diameter part 82B, up to the vicinity of the stepped portion. In other words, the bottoms of the expansion slots 84 are located in the vicinity of the shouldered portion.
    As shown in fig. 8, the portions forming part of the large diameter portion 82A and lying between the expansion slots 84 are formed as elastically deformable elements 86 bent in a chevron shape when viewed in the axial direction. The inner peripheral portion of the elastically deformable member 86, which projects and widens in the peripheral direction, is an example of the engaging portion of the present invention.
    As shown in fig. 7, the external peripheral surface of the large-diameter part 82A has an annular groove 88 on the external side of the bottoms of the expansion slots 84, which reduces the thickness of the proximal portion of the elastically deformable element 86. portion of reduced thickness of the elastically deformable element 86 is an example of the portion shaped as a thin wall of the present invention. Due to this structure, the elastically deformable element 86 is capable of elastic deformation so as to be inclined in the interior - exterior direction in the radial direction, with the annular groove 88 used as a pivot.
    As shown in figs. 7 and 9, the drive crown 56 and a shaft 82 of this embodiment are formed as separate elements. The drive crown 56 and the shaft 92 are an example of the crown of the present invention.
    As shown in fig. 10, the drive ring 56 of the present embodiment has a cap shape having a peripheral wall 94 in the form of a ring and an end wall 96 closing one end of this peripheral wall 94. The rib knurling 60 is formed on the outer peripheral surface of the peripheral wall 94. The inner peripheral surface of the peripheral wall 94 of this embodiment is formed with a constant diameter. At the center of the end wall 96 is formed a tapped hole 100 with which a screw 98 of the shaft 92 described below is engaged by screwing.
    As shown in figs. 7 and 9, like the shaft 58 of the first embodiment described above, the shaft 92 of the present embodiment comprises the portion of shaft of constant diameter 58B, the shoulder 66 and the portion of shaft with cross-section irregularly shaped 58A. However, on the side of the constant diameter shaft portion 58B opposite to the irregularly shaped section of the tree portion 58A, it comprises a large diameter shaft portion 102 having a larger diameter than the shaft portion of constant diameter 58B and that the screw 98.
    As shown in figs. 8 and 9, a rib knurl 104 is formed on the outer peripheral surface of the large diameter shaft portion 102. The rib knurl 104 has teeth 104A in the form of a chevron (triangular in the present embodiment), extending axially and arranged at regular intervals. In the present embodiment, 18 teeth 104A are formed on the outer peripheral surface of the large diameter portion 82A. Teeth 104A, which preferably have a tapered shape, are not limited to a triangular shape. For example, the distal ends of the triangles may be rounded or the teeth may be in the form of isosceles trapezoids or the like. Here, the recessed portions between the teeth 104A are called the grooves 106 in the present description. Teeth 104A and grooves 106 are an example of the projections and hollows of the present invention.
    CH 714 764 A2 As shown in figs. 7 and 8, the large diameter portion 82A of the winding stem pipe made of elastic material 82 is inserted into the annular space between the peripheral wall 94 of the drive crown 56 and the large diameter shaft portion 102 of the shaft 92. Between the large diameter part 82A of the winding stem pipe made of elastic material 82 and the peripheral wall 94 of the drive crown 56, there is provided a space allowing deformation of the elastically deformable elements 86 towards the outside in radial direction.
    Normally, as shown in fig. 8, the inner side corner at the peripheral end portion (the inner edge of the lateral edge) of the elastically deformable element of the winding stem pipe made of elastic material 82 is held in the groove 106, between teeth 104A of the large-diameter shaft portion 102, and the internal peripheral surface of the elastically deformable element 86 is in contact with the top of one of these teeth 104A, the corner on the inner side (the inner edge) of the the elastically deformable element 86 being in contact with the inclined surface of the other tooth 104A.
    Operation and Effects In the following, the operation and the effects of the wristwatch 10 of this embodiment will be described.
    To rotate the internally rotatable ring 20, the drive ring 56 is rotated as in the first embodiment, whereby the internally rotatable ring 20 is rotated.
    In this embodiment, when the drive crown 56 is rotated, each deformable element 86 is pushed by a tooth 104A of the shaft 92 and undergoes an elastic deformation so as to be inclined towards the outside. in the radial direction. When the drive ring 56 is further rotated, the inner side corner (the inner edge) of the elastically deformable element 86 passes over the top of the tooth 104A and enters the next groove 106 between the tooth 104A crossed and another tooth 104A adjacent to tooth 104A crossed. When the inner side corner (the inner edge) of the elastically deformable member 86 enters the groove 106, the elastically deformable member 86 returns to its previous position in an elastic manner.
    In this way, the drive crown 56 is turned and the inner side corner (the inner edge) of the elastically deformable element 86 passes over the top of the tooth 104A to enter the next groove, whereby it is possible to make a tactile sensation feel and the operator can perceptibly determine that the drive crown 56 is turned.
    On the other hand, normally (that is to say when the crown is not operated), the inside corner of the elastically deformable element 86 penetrates into a groove 106 between teeth 104A of l tree 92 and it is held in it as shown in fig. 8, so that it is possible to avoid inadvertent rotation of the drive crown 56 when, for example, the drive crown 56 comes into contact with any object.
    Thus, according to the present embodiment, as in the first embodiment, although the drive wheel 72 permanently meshes with the offset toothed portion 28 of the internally rotating crown 20, it is possible to prevent an inadvertent rotation of the internally rotating crown 20 and an idling of the drive crown 56 when, for example, the wristwatch is worn.
    As described above, the click structure providing a tactile sensation may consist of two components which are the drive crown 56 and the winding stem pipe made of elastic material 82, so that in the wristwatch 10 of the present embodiment also, it is possible to produce the click mechanism by giving it a simple constitution.
    In addition, the inner side corner of the elastically deformable element 86 enters the groove 106 between teeth 104A of the shaft 92 of the drive ring 56 and is retained there, so that it is possible to avoid a rattling in the direction of rotation of the drive crown 56, with a simple constitution.
    In addition, the click mechanism can be assembled by means of the following simple operation: after having inserted the winding stem pipe of elastic material 82 into the through hole 42, the shaft 92 is inserted of the drive crown 56 in the winding stem pipe made of elastic material 82 and the drive wheel 72 is fixed to the distal end of the shaft 92 by means of the retaining ring 78. In the present embodiment also as in the first embodiment, when the shaft 92 is inserted, no repulsion due to a spring as in patent document 1 occurs, so that the assembly operation is facilitated.
    While in the previous description, the inner side corner of the elastically deformable element 86 enters the groove 106 enters a groove 106 between teeth 104A of the shaft 92 and that the drive ring 56 is retained , it can also be said that two teeth 104A of the shaft 92 enter the hollow portion, on the inner peripheral surface side, of the elastically deformable element 86 curved into a chevron shape, in order to retain the drive crown 56.
    CH 714 764 A2
    Third embodiment We will describe the wristwatch 10 according to the third embodiment of the present invention with reference to FIG. 11. The components which are the same as those of the embodiments described above are designated by the same reference numbers and a description of them is omitted.
    As shown in fig. 11, the wristwatch 10 of the present embodiment is a variant of the second embodiment and the shape of the winding stem pipe made of elastic material 82 is somewhat different from that of the second embodiment.
    The large diameter portion 82A of the winding stem pipe made of elastic material 82 of the present embodiment has a cylindrical shape and has, on its internal peripheral surface, a projection 108 shaped to enter the grooves 106 between teeth 104A of the tree 92. The operation and the effects of this embodiment are the same as those of the second embodiment.
    Other embodiments The foregoing description of embodiments of the present invention should not be interpreted in a restrictive manner. The present invention of course allows various modifications without departing from the scope of the invention.
    While the projection 80 formed on the inner peripheral surface of the peripheral wall 62 of the drive ring 56 is caused to enter a groove 48 between teeth 46A provided on the outer peripheral portion of the large diameter portion 44A of the winding stem pipe made of elastic material 44 so as to form the click mechanism in the first embodiment, this should not be interpreted in a restrictive manner. It is also possible that a projection formed on the external peripheral surface of the winding stem pipe made of elastic material 44 penetrates into a hollow formed in the internal peripheral surface of the peripheral wall 62.
    权利要求:
    Claims (9)
    [1]
    While in the embodiments described above, the internally rotating ring 20 constitutes an example of a mechanism which is located inside the box 12 and which is driven by means of a rotation of the crown d Training 56, this should not be interpreted restrictively. Except when it is an internally rotating ring 20, what must be driven by means of a rotation of the drive crown 56 may be, for example, a calendar or a movement.
    While the present invention is implemented in a wristwatch in the embodiments described above, this should not be interpreted restrictively. The present invention is also applicable to a timepiece other than a wristwatch. There is no particular limitation regarding the shape and type of the timepiece as long as it is capable of displaying the time. It can also be a portable device or the like which is not usually called a timepiece.
    claims
    1. Timepiece including:
    a tubular element which protrudes on an external side of a box and of which a distal end part is capable of being elastically deformed in a radial direction;
    a crown inserted in the tubular element so as to be rotatable;
    protrusions and recesses formed on a peripheral surface of one of the elements that are the tubular element and the crown; and an engaging portion which is formed on a peripheral surface of the other member among the tubular member and the crown and which is engaged with the projections and recesses.
    [2]
    2. Timepiece according to claim 1, in which the part of the tubular element capable of being elastically deformed is formed by a divisional element obtained by peripheral division by several grooves extending from a distal end towards one end. proximal of the tubular element and formed at regular intervals.
    [3]
    3. Timepiece according to claim 2, wherein, at its proximal end, the divisional element has a portion shaped as a thin wall which is thinner than the distal end.
    [4]
    4. Timepiece according to claim 1, wherein the crown comprises a shaft and a cap-shaped head which is connected to the distal end of the shaft and whose box side is open;
    a protrusion which forms the engaging part being formed on an inner peripheral portion of the head; and the projections and recesses being formed on an outer peripheral portion of the tubular member.
    [5]
    5. Timepiece according to claim 1, wherein the crown comprises a shaft and a cap-shaped head which is connected to a distal end of the shaft and whose box side is open;
    the protrusions and hollows being formed on an external peripheral portion of the shaft; and
    CH 714 764 A2 the part to be engaged being formed on an internal peripheral portion of the tubular element.
    [6]
    6. Timepiece according to claim 2, wherein the crown comprises a shaft and a cap-shaped head which is connected to the distal end of the shaft and whose box side is open;
    a protrusion which forms the engaging part being formed on an inner peripheral portion of the head; and the projections and recesses being formed on an outer peripheral portion of the tubular member.
    [7]
    7. Timepiece according to claim 2, wherein the crown comprises a shaft and a cap-shaped head which is connected to the distal end of the shaft and whose box side is open;
    the protrusions and hollows being formed on an external peripheral portion of the shaft; and the part to be engaged being formed on an internal peripheral portion of the tubular element.
    [8]
    8. Timepiece according to claim 3, wherein the crown comprises a shaft and a cap-shaped head which is connected to the distal end of the shaft and whose box side is open;
    a protrusion which forms the engaging part being formed on an inner peripheral portion of the head; and the projections and recesses being formed on an outer peripheral portion of the tubular member.
    [9]
    9. Timepiece according to claim 3, wherein the crown comprises a shaft and a cap-shaped head which is connected to the distal end of the shaft and whose box side is open;
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    同族专利:
    公开号 | 公开日
    US11042122B2|2021-06-22|
    CN110231767A|2019-09-13|
    US20190278226A1|2019-09-12|
    JP2019152620A|2019-09-12|
    JP6465327B1|2019-02-06|
    CN110231767B|2022-02-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPS5759982Y2|1978-08-17|1982-12-21|
    JPS596474Y2|1978-08-18|1984-02-28|
    DE29518828U1|1995-11-28|1997-03-27|Diehl Gmbh & Co|Locking mechanism for an electromechanical timer|
    JP3372417B2|1996-01-27|2003-02-04|株式会社三栄水栓製作所|Click mechanism in faucet|
    JP4652942B2|2005-10-05|2011-03-16|セイコーインスツル株式会社|Cell phone clock|
    JP4937013B2|2007-06-28|2012-05-23|セイコーインスツル株式会社|Manufacturing method of crown provided in portable watch|
    FI124328B|2008-12-31|2014-06-30|Suunto Oy|Two-function control means for a wrist computer or equivalent and a method for controlling a wrist computer or a corresponding terminal device|
    JP2010243344A|2009-04-07|2010-10-28|Seiko Epson Corp|Timepiece|
    EP2439600A1|2010-10-07|2012-04-11|Blancpain S.A.|Display of hours and minutes by coaxial and coplanar ring and disc|
    JP5713733B2|2011-03-10|2015-05-07|キヤノン株式会社|Input device and electronic device|
    CN202995269U|2012-12-12|2013-06-12|天王电子（深圳）有限公司|Mechanical watch and winding and hand-setting mechanism of mechanical watch|
    US10222755B2|2015-04-21|2019-03-05|Motorola Mobility Llc|Device with axial lock and retention device and methods therefor|
    JP6601664B2|2015-07-29|2019-11-06|カシオ計算機株式会社|Rotating operation device and clock|
    US20170315508A1|2016-05-01|2017-11-02|Kevin Joseph Masone|Push In Watch Crown Mechanism|
    JP6829116B2|2017-03-13|2021-02-10|セイコーインスツル株式会社|Watch with crown lock mechanism|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP2018039913A|JP6465327B1|2018-03-06|2018-03-06|clock|
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