JP2018146505A - Rotation device and watch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotation device capable of rotating a rotor in one direction with click feeling imparted to a user, and enabling downsizing, and provide a watch including the rotation device.SOLUTION: A rotation device includes: a rotation bezel 11 rotatably arranged on an outer periphery of a wrist watch case 1, and on a lower surface of which engagement concave parts 15 are provided at equal intervals along a circumference; a rotation regulation member 12 arranged in the wrist watch case 1 positioned below the rotation bezel 11, and detachably engaged with any one of the engagement concave parts 15 according to rotation in one direction of the rotation bezel 11, to regulate a rotation position of the rotation bezel 11; and a coil spring 13 configured to energize the rotation regulation member 12 toward the rotation bezel 11.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a rotating device used in a timepiece such as a wristwatch and a timepiece including the same.

  For example, in a wristwatch rotating device, as described in Patent Document 1, when a rotating bezel is rotatably arranged on the outer periphery of a wristwatch case, a rotation in which a rod-like member is bent substantially in a ring shape therebetween There is known a configuration in which a regulating member is arranged and a rotation bezel is rotated in one direction with a click feeling by the rotation regulating member.

JP 2002-181960 A

  This type of rotating device is provided with serrated locking teeth on the outer peripheral surface of the wristwatch case, and provided with a fixing portion to which one end of the rotation restricting member is fixed on the inner peripheral surface of the rotating bezel. In order to lock the other end of the rotation restricting member to the locking teeth of the wristwatch case on the peripheral surface, a notch recess is provided that elastically deforms the other end of the rotation restricting member in the radial direction.

  As a result, the rotating device fixes one end of the rotation restricting member to the fixing portion of the inner peripheral surface of the rotating bezel and arranges the other end of the rotation restricting member in the notch recess of the inner peripheral surface of the rotating bezel. When the rotation restricting member is attached to the inner peripheral surface of the rotating bezel and the rotating bezel is attached to the outer peripheral surface of the watch case together with the rotation restricting member in this state, the other end of the rotation restricting member is connected to the outer peripheral surface of the watch case. It is configured to be elastically locked to the stop teeth.

  However, in such a wristwatch rotation device, when a sawtooth locking tooth is provided on the outer peripheral surface of the watch case and the rotating bezel is attached to the outer periphery thereof, the outer peripheral surface of the wristwatch case and the inner peripheral surface of the rotating bezel are Since the rotation restricting member is disposed between the wristwatches, the entire wristwatch is restricted in its radial direction, so that the entire outer diameter of the wristwatch tends to be large, and the whole wristwatch cannot be downsized.

  The problem to be solved by the present invention is to provide a rotating device that can rotate a rotating body in one direction with a click feeling and that can be reduced in size, and a timepiece including the rotating device.

  The present invention includes an apparatus main body, a rotating body that is rotatably disposed on the outer periphery of the apparatus main body, and that has engagement recesses provided on the lower surface at equal intervals along the circumference, and is positioned below the rotating body. The main body of the apparatus is arranged so as to be able to appear and move toward the rotating body and not to rotate, and to engage or disengage with any of the engaging recesses according to the rotation of the rotating body in one direction. A rotation device comprising: a rotation restricting member that restricts a rotational position of the rotating body; and a biasing member that biases the rotation restricting member toward the rotating body.

  According to the present invention, the rotation restricting member can be detachably engaged with the engaging recess of the rotating body in accordance with the rotation of the rotating body in one direction, so that the rotating body can be rotated in one direction with a click feeling. In addition, since the entire device is not restricted in the radial direction, the outer diameter of the entire device can be formed small, and thus the entire device can be reduced in size.

1 is an enlarged front view showing an embodiment of a wristwatch to which the present invention is applied. FIG. 2 is an enlarged cross-sectional view showing the main part of the watch shown in FIG. FIG. 2 is a cross-sectional view of a main part of the rotating device shown in FIG. 2 as viewed from arrows BB, (a) is an enlarged cross-sectional view of the main part showing a state where the rotation position of the rotating bezel is restricted by a rotation restricting member b) is an enlarged cross-sectional view of the main part showing a state in which the rotating bezel rotates in one direction. It is an enlarged bottom view of the principal part which showed the lower surface in the rotation bezel of the rotating apparatus shown by FIG. FIG. 4 is an enlarged perspective view showing a rotation restricting member of the rotating device shown in FIG. 3. FIG. 6 is an enlarged cross-sectional view of a main part showing a state in which the rotation restricting member shown in FIG. 5 is arranged in the storage hole of the watch case. FIG. 5 is an enlarged cross-sectional view of a main part showing a first modification of an urging member in the rotating device shown in FIG. 3. It is an expanded sectional view of the principal part which showed the 2nd modification of the biasing member in the rotating apparatus shown by FIG.

Hereinafter, an embodiment in which this invention is applied to a wristwatch will be described with reference to FIGS.
As shown in FIG. 1, the wristwatch includes a metal wristwatch case 1 that is a main body of the apparatus. Band attaching portions 2 are respectively provided on the side portions of the wristwatch case 1 at the 12 o'clock side and the 6 o'clock side. In addition, push button switches 3 are provided on the wristwatch case 1 on the 2 o'clock side, 4 o'clock side, 8 o'clock side, and 10 o'clock side, respectively.

  As shown in FIGS. 1 and 2, a watch glass 4 is provided in the upper opening of the watch case 1 through a glass packing 4a. A back cover 5 is attached to the lower part of the watch case 1 via a waterproof ring 5a. Further, a watch module 6 is provided inside the watch case 1 via an inner frame 7.

  In this case, a dial plate (not shown) is provided on the upper part of the timepiece module 6, and a parting member 8 is disposed on the outer periphery of the dial plate as shown in FIG. Although not shown, the timepiece module 6 is necessary for a timepiece function such as a timepiece movement for moving the hands above the dial, a display panel for electro-optically displaying information such as time, and a circuit unit for electrically driving these. Various kinds of parts are provided.

  By the way, as shown in FIGS. 1 and 2, a rotating device 10 is provided on the outer periphery of the upper part of the watch case 1 that is the device main body. In this case, a notch 9 is provided on the outer periphery of the upper part of the watch case 1 over the entire periphery. The rotating device 10 includes a rotating bezel 11 that is a rotating body disposed in the notch 9 of the watch case 1, a rotation restricting member 12 that restricts the rotational position of the rotating bezel 11, and the rotation restricting member 12 as a rotating bezel. 11 and a coil spring 13 that is an urging member that is elastically pressed toward 11.

  As shown in FIGS. 2 and 3, the rotating bezel 11 is formed in a ring shape from metal, and can be freely rotated through a ring-shaped packing 14 in an outer circumferential cutout portion 9 located at the top of the watch case 1. It is attached. In this case, a mounting recess 11 a to which the packing 14 is mounted is provided on the inner peripheral surface of the rotating bezel 11. On the inner peripheral surface of the rotating bezel 11 positioned below the mounting recess 11a, an engaging portion 11b that engages with a locking projection 9a provided on the outer peripheral surface of the notch portion 9 of the watch case 1 is provided. Yes.

  Thereby, as shown in FIG. 2, the rotating bezel 11 is fitted into the notch 9 on the outer periphery located at the upper part of the watch case 1 from above with the packing 14 mounted in the mounting recess 11a. By engaging the engaging portion 11 b with the locking projection 9 a of the notch 9 of the watch case 1, it can be rotatably attached to the notch 9 of the watch case 1 without coming out above the watch case 1. It is configured.

  Further, as shown in FIGS. 2 to 4, engagement recesses 15 are provided on the lower surface of the rotating bezel 11 at equal intervals along the circumference. Each of the engaging recesses 15 has a substantially trapezoidal cross section. The engaging recess 15 is provided with a first inclined portion 15 a on the inner surface located on the opposite side of the rotating bezel 11 in the one direction (arrow X direction), and the rotating body bezel 11 rotates in one direction. The second inclined portion 15b is provided on the inner surface located at the bottom, and the bottom portion 15c is provided between the first inclined portion 15a and the second inclined portion 16b.

  In this case, as shown in FIG. 3A and FIG. 3B, the first inclined portion 15a is approximately 40 ° from the lower surface of the rotating bezel 11 in the direction of rotation in one direction (arrow X direction). It is inclined at an angle of. Thereby, the 1st inclination part 15a is comprised so that the rotation control member 12 may be pushed down by contacting the rotation control member 12 and sliding, when the rotary body bezel 11 rotates to one direction.

  Further, as shown in FIGS. 3 (a) and 3 (b), the second inclined portion 15b is approximately directed from the lower surface of the rotating bezel 11 in the direction opposite to the rotating direction in one direction (arrow X direction). Inclined at an angle of 70 °. Thus, when the rotation restricting portion 12 is inserted into the engagement recess 15, the second inclined portion 15 b comes in contact with the rotation restricting member 12 so as to be able to come into contact with and separate from the rotation bezel 11. It is comprised so that rotation of may be controlled.

  On the other hand, as shown in FIGS. 2, 3, and 5, the rotation restricting member 12 includes a restricting protrusion 16 that is removably inserted into an engaging recess 15 provided on the lower surface of the rotating bezel 11, and the restricting protrusion. 16 is provided with a pedestal portion 17 provided on the upper surface, and a guide shaft 18 provided on the lower surface of the pedestal portion 17 for guiding the coil spring 13, and these are integrally formed of a hard synthetic resin having slipperiness. ing.

  As shown in FIG. 1, the rotation restricting member 12 is configured to be disposed together with the coil spring 13 in a storage hole 20 provided at a predetermined position on the bottom surface of the notch 9 of the watch case 1. . In this case, the storage hole 20 is provided on the bottom surface of the notch 9 of the wristwatch case 1 at a position where the push button switch 3 is avoided, for example, a position located on the 9 o'clock side.

  That is, as shown in FIGS. 2 and 3, the storage hole portion 20 is provided at a position located on the upper side in the vertical direction, and the pedestal portion 17 of the rotation restricting member 12 is arranged to be movable in the vertical direction. A large-diameter hole 20a, and a small-diameter hole 20b that is provided at a position located on the lower side and in which the guide shaft 18 of the rotation restricting member 12 is disposed together with the coil spring 13. The outer diameter of the large diameter hole portion 20a is slightly larger than the outer diameter of the pedestal portion 17, and the shape of the large diameter hole portion 20a is substantially the same as the shape of the pedestal portion 17. The rotation restricting member 12 is configured not to rotate within the storage hole 20 around the guide shaft 18 of the rotation restricting member 12.

  In this case, as shown in FIGS. 2, 3, and 6, the coil spring 13 is formed so that its inner diameter is slightly larger than the outer diameter of the guide shaft 18, and the outer diameter is smaller than the outer diameter of the pedestal portion 17, And it is formed slightly smaller than the inner diameter of the small-diameter hole 20b of the storage hole 20. Further, the coil spring 13 is configured such that the upper end thereof is elastically contacted with the lower surface of the pedestal portion 17 and the lower end thereof is elastically contacted with the bottom of the small diameter hole portion 20b.

  As a result, the coil spring 13 is configured to urge the pedestal 17 in the direction of pushing it upward toward the storage hole 20 as shown in FIG. In this case, even when the coil spring 13 pushes out the restricting projection 16 toward the upper side of the storage hole 20 by the spring force, even if the upper side of the base 17 protrudes above the storage hole 20, 17 is set to a spring force that maintains the state in which the lower portion 17 is disposed in the large-diameter hole 20a of the storage hole 20.

  By the way, as shown in FIGS. 3 and 5, the restricting protrusion 16 of the rotation restricting member 12 is formed in a mountain shape that is inserted into the engaging recess 15 of the rotating bezel 11 so as to be able to appear and retract. That is, the restricting protrusion 16 is brought into contact with and separated from the slide portion 16 a that is pushed down in accordance with the slide of the first inclined portion 15 a in the engaging recess 15 of the rotating bezel 11 and the second inclined portion 15 b of the engaging recess 15. And an abutting portion 16b that abuts on the surface.

  In this case, as shown in FIG. 3 and FIG. 5, the restricting protrusion 16 has a chevron-shaped height, that is, a length protruding from the pedestal 17 toward the rotating bezel 11. It is substantially the same as the depth of 15 or slightly longer than that. Thereby, when the restricting protrusion 16 is inserted into the engaging recess 15, the mountain-shaped upper end portion 16 c abuts against the bottom 15 c of the engaging recess 15.

  In this case, as shown in FIGS. 3 and 5, the slide portion 16 a is formed substantially parallel to the first inclined portion 15 a of the engagement recess 15 of the rotating bezel 11. Further, the contact portion 16b is formed substantially parallel to the second inclined portion 15b of the engagement recess 15. Furthermore, the upper end portion 16c of the restricting projection portion 16, that is, the mountain-shaped upper end portion 16c is formed in an arc shape.

  As a result, as shown in FIG. 3A, the restricting protrusion 16 is inserted into the engaging recess 15 of the rotating bezel 11, and the mountain-shaped upper end 16 c abuts against the bottom 15 c of the engaging recess 15. At this time, the slide portion 16a is configured to face the first inclined portion 15a of the engaging recess 15 with a gap, and the contact portion 16b is configured to face and contact the second inclined portion 15b of the engaging recess 15. .

  In this case, as shown in FIG. 3A, the pedestal portion 17 has an upper surface of the pedestal portion 17 and a lower surface of the rotation bezel 11 when the restricting projection 16 is inserted into the engagement recess 15 of the rotation bezel 11. On the lower side of the rotating bezel 11 with a slight gap therebetween, and the upper surface of the pedestal portion 17 is on the same plane as the bottom surface of the notch portion 9 of the watch case 1 positioned at the upper end portion of the storage hole portion 20. It is comprised so that it may be arrange | positioned.

  Further, as shown in FIG. 3B, the restricting projection 16 is inserted into the engaging recess 15 of the rotating bezel 11 and is rotated when the rotating bezel 11 is rotated in one direction (arrow X direction). The sliding portion 16a is configured to be gradually pushed down against the spring force of the coil spring 13 by sliding in a state where the first inclined portion 15a of the engaging recess 15 is in contact with the sliding portion 16a.

  Further, as shown in FIG. 3 (b), when the slide portion 16 a is gradually pushed down against the spring force of the coil spring 13, the restricting projection portion 16 is formed so that the abutment portion 16 b has the engagement recess 15. By being gradually pushed down along the second inclined portion 15b, the upper end portion 16c having a mountain shape gets over the second inclined portion 15b of the engaging concave portion 15 and comes out of the engaging concave portion 15 to the outside. Yes.

  In this case, as shown in FIG. 3B, the coil spring 13 is compressed by the pedestal portion 17 when the upper end portion 16 c of the restricting projection portion 16 gets over the second inclined portion 15 b of the engagement recess portion 15. As a result, the rotating force of the rotating bezel 11 is increased, and when the restricting projection 16 is inserted into the adjacent engaging recess 15, the compressed coil spring 13 is extended to rapidly reduce the rotating force of the rotating bezel 11. The rotating bezel 11 is configured to give a click feeling.

  Further, as shown in FIG. 3A, the restricting protrusion 16 rotates the rotating bezel 11 in one direction (arrow X direction) in a state of being inserted into the engaging recess 15 of the rotating bezel 11. In this case, the rotation of the rotating bezel 11 in the reverse direction is prevented by maintaining the state in which the contact portion 16 b is in contact with the second inclined portion 15 b of the engagement recess 15.

Next, the operation of the wristwatch rotating device 10 will be described.
When assembling the rotating device 10, first, the rotation regulating member 12 is placed in the storage hole 20 provided at the 9 o'clock side at the bottom of the notch 9 located on the outer periphery of the upper part of the watch case 1. Place with. At this time, the guide shaft 18 provided on the lower surface of the base portion 17 of the rotation restricting member 12 is inserted into the coil spring 13, and the coil spring 13 is disposed on the outer periphery of the guide shaft 18.

  In this state, the coil spring 13 and the guide shaft 18 are inserted into the storage hole 20 of the notch 9 of the watch case 1 from above and disposed in the small diameter hole 20 b of the storage hole 20. In this state, as shown in FIG. 6, the coil spring 13 is in a state where the lower end portion of the coil spring 13 is in elastic contact with the bottom portion of the storage hole portion 20 and the upper end portion of the coil spring 13 is elastically in contact with the lower surface of the pedestal portion 17. Grows naturally.

  In this state, the upper side of the pedestal portion 17 protrudes upward from the storage hole 20 together with the restricting protrusion 16, and the lower side of the pedestal portion 17 is disposed in the large-diameter hole 20 a of the storage hole 20. For this reason, the rotation restricting member 12 has the accommodation hole portion 20 because the lower portion side of the pedestal portion 17 is disposed in the accommodation hole portion 20 even if the restriction projection portion 16 protrudes above the accommodation hole portion 20. It is placed in a stable state inside.

  In this state, the rotating bezel 11 is attached to the notch 9 of the watch case 1. At this time, the packing 14 is mounted in advance in the mounting recess 11 a provided on the inner peripheral surface of the rotating bezel 11. Then, the rotating bezel 11 is fitted into the notch portion 9 of the watch case 1 from above, and the engaging portion 11b of the rotating bezel 11 is engaged with the locking projection 9a of the notch portion 9 of the watch case 1.

  As a result, the rotating bezel 11 is rotatably mounted in the notch 9 of the watch case 1 without coming out above the watch case 1. At this time, the restricting protrusion 16 of the rotation restricting member 12 is pushed down by the lower surface of the rotating bezel 11. For this reason, the coil spring 13 is slightly compressed, and the upper side of the pedestal portion 17 is pushed into the large-diameter hole portion 20 a of the storage hole portion 20.

  In this case, when the restricting protrusion 16 of the rotation restricting member 12 is inserted into the engaging recess 15 provided on the lower surface of the rotating bezel 11, the slide portion 16 a of the restricting protrusion 16 is the first of the engaging recess 15. It faces the first inclined portion 15a in parallel with a gap, the contact portion 16b of the restricting projection portion 16 comes into contact with the second inclined portion 15b of the engaging recess portion 15, and the upper end portion 16c of the restricting projection portion 16 is engaged with the engaging recess portion. 15 abuts on the bottom 15c.

  At this time, the height of the restricting protrusion 16, that is, the length of the restricting protrusion 16 protruding from the pedestal 17 toward the rotating bezel 11 is substantially the same as or greater than the depth of the engaging recess 15 of the rotating bezel 11. Also formed a little longer. For this reason, when the restricting projection 16 is inserted into the engaging recess 15 and its upper end 16 c comes into contact with the bottom 15 c of the engaging recess 15, the pedestal 17 is formed on the notch 9 of the watch case 1. It is pushed into the storage hole 20.

  At this time, the pedestal portion 17 of the rotation restricting member 12 is disposed below the rotating bezel 11 with a slight gap between the upper surface thereof and the lower surface of the rotating bezel 11, and the upper surface of the pedestal portion 17 is the accommodation hole portion. The wristwatch case 1 is positioned on the same plane as the bottom surface of the notch 9 of the watch case 1 located at the upper end of the watch 20. Thereby, the pedestal portion 17 of the rotation restricting member 12 is arranged in a state where it does not contact the lower surface of the rotating bezel 11.

Next, the operation of the rotating device 10 will be described.
When the rotating bezel 11 is rotated in one direction (arrow X direction) in a state where the restricting protrusion 16 of the rotation restricting member 12 is inserted into the engaging recess 15 provided on the lower surface of the rotating bezel 11, the rotating bezel With the rotation of 11, the engaging recess 15 of the rotating bezel 11 moves in the rotation direction (arrow X direction).

  At this time, the first inclined portion 15a of the engaging recess 15 slides in a state of being in contact with the slide portion 16a of the restricting projection portion 16, and the slide portion 16a is a spring of the coil spring 13 according to the slide of the first inclined portion 15a. It is gradually pushed down against the force. For this reason, the contact portion 16b of the restricting projection 16 is gradually pushed down along the second inclined portion 15b of the engaging recess 15, and the upper end portion 16c of the restricting protruding portion 16 climbs over the second inclined portion 15b. It is pushed out of the joint recess 15. At this time, since the coil spring 13 is compressed by the pedestal portion 17, the rotational force of the rotating bezel 11 becomes heavy.

  When the rotating bezel 11 is further rotated in one direction (arrow X direction) in this state, the rotating bezel 11 rotates with the upper end portion 16c of the restricting projection 16 elastically contacting the lower surface of the rotating bezel 11. With the rotation of the rotating bezel 11, when the adjacent engaging recess 15 corresponds to the restricting protrusion 16, the restricting protrusion 16 is inserted into the adjacent engaging recess 15.

  At this time, the upper end portion 16 c of the restricting projection 16 is gradually pushed up along the first inclined portion 15 a of the engaging recess 15 by the spring force of the compressed coil spring 13. Thereby, the slide part 16a of the restricting projection part 16 faces the first inclined part 15a of the engaging recessed part 15, the abutting part 16b of the restricting protruding part 16 abuts on the second inclined part 15b of the engaging recessed part 15, The upper end portion 16 c of the restricting projection portion 16 comes into contact with the bottom portion 15 c of the engaging recess 15.

  Thus, when the restricting protrusion 16 is inserted into the adjacent engaging recess 15, the compressed coil spring 13 is stretched by its elastic restoring force, so that the rotational force of the rotating bezel 11 is drastically reduced. Thereby, a click feeling is given to the rotating bezel 11.

  Further, when the rotating bezel 11 is rotated in one direction (arrow X direction) in a state where the restricting protrusion 16 is inserted into the engaging recess 15, the contact portion of the restricting protrusion 16 is provided. Since the second inclined portion 15b of the engaging recess 15 is in contact with 16b, the reverse rotation of the rotating bezel 11 is prevented. For this reason, this rotation bezel 11 rotates only in one direction (arrow X direction).

  Further, since the rotation restricting member 12 does not rotate around the guide shaft 18 in the storage hole portion 20, the second inclined portion 15 b of the engaging recess 15 abuts on the abutting portion 16 b of the restricting protrusion 16. Therefore, reverse rotation of the rotating bezel 11 is prevented.

  As described above, according to the rotating device 10 of the wristwatch, the rotating device is rotatably disposed on the outer periphery of the wristwatch case 1 which is the device body, and the engagement recesses 15 are provided on the lower surface at equal intervals along the circumference. The bezel 11 and the wristwatch case 1 positioned below the rotating bezel 11 are arranged so that they can be engaged and disengaged in any one of the engaging recesses 15 according to the rotation of the rotating bezel 11 in one direction (arrow X direction). The rotation restricting member 12 that engages and restricts the rotational position of the rotating bezel 11 and the coil spring 13 that urges the rotating restricting member 12 toward the rotating bezel 11 are provided to rotate with a click feeling. The bezel 11 can be rotated in one direction, and the entire apparatus can be reduced in size.

  In other words, in the rotation device 10 of this wristwatch, the rotation restricting member 12 can be detachably engaged with the engaging recess 15 of the rotating bezel 11 in accordance with the rotation of the rotating bezel 11 in one direction (arrow X direction). Therefore, the rotating bezel 11 can be rotated in one direction with a click feeling, and the entire apparatus is not restricted in the radial direction. Therefore, the outer diameter of the entire apparatus is not increased, and the entire apparatus is small. Can be achieved.

  In this case, in the rotating device 10, the rotation regulating member 12 can be projected and retracted toward the rotating bezel 11 at a predetermined position of the wristwatch case 1 positioned below the rotating bezel 11, that is, at one position positioned on the 9 o'clock side. By providing the storage hole portion 20 to be arranged, the rotation regulating member 12 can be easily and easily attached to the wristwatch case 1 and the storage hole portion 20 is avoided from the plurality of push button switches 3 and the like. Can be provided. For this reason, this rotating device 10 has a simple structure, can be easily manufactured, and can save space.

  Further, in the rotating device 10, the rotation restricting member 12 is provided with a restricting protrusion 16 that is removably inserted into the engaging recess 15 of the rotating bezel 11, the restricting protrusion 16, and the outer periphery is an engaging recess. Since the base portion 17 is not inserted into the engagement recess 15 by providing the base portion 17 larger than the inner periphery of 15, only the restricting projection portion 16 is satisfactorily inserted into the engagement recess 15. Accordingly, the pedestal portion 17 is not caught by the engagement recess 15 and the rotating bezel 11 can be smoothly rotated.

  Further, in the rotating device 10, the engaging recess 15 of the rotating bezel 11 is positioned on the side opposite to the rotating direction in the one direction (arrow X direction) of the rotating bezel 11 and slides in a state in contact with the rotation restricting member 12. A first inclined portion 15a that pushes down the rotation restricting member 12 and a second inclined portion 15b that is positioned in the rotational direction in one direction of the rotation bezel 11 and contacts the rotation restricting member 12 so as to be able to contact and separate. By providing, the rotation bezel 11 can be favorably rotated only in one direction, and the rotation of the rotation bezel 11 in the reverse direction can be prevented.

  In this case, the restricting protrusion 16 of the rotation restricting member 12 includes a slide portion 16 a that is pushed down according to the slide of the first inclined portion 15 a in the engaging recess 15 of the rotating bezel 11, and the second inclined portion 15 b of the engaging recess 15. And a contact portion 16b that comes into contact with and away from the first tilt portion 15a of the engagement recess 15 when the rotating bezel 11 is rotated in one direction (arrow X direction). Thus, the slide portion 16a is surely pushed down, so that the rotating bezel 11 can be smoothly rotated in one direction.

  Further, when the rotating bezel 11 rotates in one direction (arrow X direction) and the first inclined portion 15a of the engaging recess 15 pushes down the slide portion 16a of the restricting protrusion 16, the restricting protrusion 16 is restricted. When the contact portion 16b of 16 is pushed down along the second inclined portion 15b of the engaging recess 15 and the upper end portion 16c of the restricting protrusion 16 gets over the second inclined portion 15b, the restricting protrusion 16 is engaged. Since it is reliably and satisfactorily pushed out from the inside of the recess 15, the rotating bezel 11 can be smoothly and satisfactorily rotated in one direction.

  In addition, when the restricting protrusion 16 rotates the rotating bezel 11 in the direction opposite to the one direction (arrow X direction), the second inclined portion 15b of the engaging recess 15 becomes the contact portion 16b of the restricting protrusion 16. Since it abuts, it is possible to reliably prevent the rotating bezel 11 from rotating in the reverse direction, and thus it is possible to reliably prevent the rotating bezel 11 from rotating in the reverse direction.

  In this case, the restriction protrusion 16 is formed so that its height, that is, the length protruding from the pedestal 17 toward the rotating bezel 11 is the same as or slightly longer than the depth of the engagement recess 15. When the restricting projection 16 is inserted into the engagement recess 15, the pedestal 17 can be disposed in a state of being pushed down to the lower side of the rotating bezel 11, so that the pedestal 17 is brought into the engagement recess 15. Since the contact can be avoided, the rotating bezel 11 can be smoothly and satisfactorily rotated.

  Further, the upper end portion 16c of the restricting projection portion 16 is formed in an arc shape, so that when the restricting projection portion 16 is pushed out from the engagement recess portion 15, the arc-like upper end portion 16c is inclined second. It is possible to smoothly get over the portion 15b, and the lower surface of the rotating bezel 11 can be smoothly slid by the arcuate upper end portion 16c, and when the restricting projection portion 16 is inserted into the adjacent engaging recess portion 15 In addition, the first inclined portion 15 a of the engagement recess 15 can be smoothly slid by the arc-shaped upper end portion 16 c, and the restriction projection 16 can be smoothly inserted into the engagement recess 15.

  In this case, the rotation restricting member 12 is formed of a hard synthetic resin having slipperiness, so that when the restricting protrusion 16 is pushed out from the inside of the engaging recess 15, the restricting protrusion 16 is formed in the engaging recess 15. When the is inserted, the first inclined portion 15a can be smoothly slid with respect to the restricting protrusion 16. For this reason, the slide part 16a, the contact part 16b, and the arcuate upper end part 16c can be smoothly slid with respect to the rotating bezel 11 without applying lubricating oil such as grease to the restricting projection part 16. .

  Further, the coil spring 13 that is an urging member pushes the upper side of the pedestal portion 17 to the outside of the accommodation hole portion 20 when urged in the direction of pushing out the rotation regulating member 12 disposed in the accommodation hole portion 20. In this state, the lower side of the pedestal portion 17 is disposed in the storage hole portion 20 so that the lower side of the pedestal portion 17 can be connected to the storage hole portion 20 even if the restricting projection 16 protrudes above the storage hole portion 20. Since the rotation restricting member 12 can be disposed in a stable state in the storage hole 20, the assembly work can be improved.

  In the above-described embodiment, the case where the coil spring 13 is used as the urging member has been described. However, the present invention is not limited to this, and for example, a plate spring 25 as in the first modification shown in FIG. 7 is used. Also good. That is, the leaf spring 25 of the first modified example is configured to be curved in an arc shape that protrudes upward along the circumferential direction of the rotating bezel 11.

  In this case, the storage hole 26 provided in the notch 9 of the wristwatch case 1 has an inner diameter that is substantially the same as the outer diameter of the pedestal 17 of the rotation restricting member 12, and the length of the pedestal 17 in the direction of protrusion / recession It may be formed a little deeper than that.

  Even if such a leaf spring 25 is used, the same effect as that of the above-described embodiment can be obtained, and it is not necessary to provide the guide shaft 18 on the rotation restricting member 12, thereby simplifying the structure of the rotation restricting member 12. Can do. In this case, in the first modification, the leaf spring 25 is curved in an arc shape that protrudes upward, but may be curved in an arc shape that protrudes downward.

  Moreover, although the case where the coil spring 13 or the leaf | plate spring 25 was used as an urging | biasing member was described in embodiment mentioned above and a 1st modification, this invention is not restricted to these, For example, the 2nd modification shown in FIG. As described above, the elastic portion 30 may be formed integrally with the base portion 17 of the rotation restricting portion 12.

  That is, the elastic portion 30 is formed in a spiral shape or a zigzag shape on the lower surface of the pedestal portion 17 so as to be elastically deformed in the axial direction of the rotation restricting member 12. In this case, the storage hole 31 provided in the notch 9 of the wristwatch case 1 includes a large-diameter hole 31 a into which the pedestal 17 of the rotation restricting member 12 is inserted and an elastic part 30 to insert the elastic part 30. What is necessary is just to form with the small diameter hole part 31b which guides a deformation | transformation.

  Even with such a configuration provided with the elastic portion 30, there is the same effect as the above-described embodiment, and it is not necessary to manufacture the elastic portion 30 that is a biasing member as a separate part. It is possible to reduce the number and reduce the assembling work.

  In the above-described embodiment and each of the first and second modifications, the case where the storage hole portions 20, 26, and 31 of the watch case 1 are provided at one place located on the 9 o'clock side has been described. However, the present invention is not limited to this, and may be provided at two locations, for example, 9 o'clock side and 3 o'clock side, and is not limited thereto, and may be provided at three or more locations as long as the push button switch 3 is avoided. .

  Further, in the above-described embodiment and the first and second modifications, when the rotation restricting member 12 is disposed in the storage holes 20, 26, 31 provided in the notch 9 of the watch case 1. The case where the upper side of the pedestal portion 17 is configured to be pushed upward from the storage hole portions 20, 26, 31 has been described. However, the present invention is not limited thereto, and for example, the storage hole portions 20, 26, 31 The structure which provided the crimping part in the edge part may be sufficient.

  In this case, the rotation restricting member 12 is disposed in the storage holes 20, 26, 31 and the pedestal part 17 is pushed into the storage holes 20, 26, 31, and the staking part is squeezed to form the pedestal part. What is necessary is just to press the outer peripheral part of the upper surface of 17 from the upper side. In this way, even if the restricting projection 16 is inserted into the engaging recess 15 of the rotating bezel 11, the pedestal 17 can be prevented from being pushed upward from the storage holes 20, 26, 31. The rotating bezel 11 can be rotated smoothly and satisfactorily.

  In the above-described embodiment and the first and second modified examples, the case where the present invention is applied to a wristwatch has been described. However, the present invention is not necessarily a wristwatch. For example, a travel watch, a pocket watch, an alarm clock, It can be widely applied to various clocks such as table clocks and wall clocks.

As mentioned above, although one Embodiment of this invention was described, this invention is not restricted to this, The invention described in the claim and its equal range are included.
The invention described in the claims of the present application will be appended below.

(Appendix)
The invention according to claim 1 is an apparatus main body, a rotating body that is rotatably arranged on an outer periphery of the apparatus main body, and that has engagement recesses provided on the lower surface at equal intervals along the circumference, and the rotating body It is arranged in the apparatus main body located below so as to be able to project and retract toward the rotating body and not to rotate, and can be engaged with or disengaged from any of the engaging recesses according to the rotation of the rotating body in one direction. A rotation restricting member that engages with the rotation restricting member to restrict the rotational position of the rotating member, and a biasing member that biases the rotation restricting member toward the rotating member. is there.

  According to a second aspect of the present invention, in the rotating device according to the first aspect, the rotation restricting member is directed to the rotating body at one or a plurality of positions of the apparatus main body located below the rotating body. The rotating device is provided with a storage portion that is arranged so as to be able to appear and retract.

  According to a third aspect of the present invention, in the rotating device according to the first or second aspect, the rotation restricting member is inserted into the engaging recess of the rotating body so as to be able to protrude and retract, and A rotating device comprising a restricting projection and a pedestal having an outer periphery larger than an inner periphery of the engaging recess.

  According to a fourth aspect of the present invention, in the rotating device according to the third aspect, the engagement recess is located on a side opposite to the direction of rotation of the rotating body in the one direction and contacts the regulating protrusion. A first inclined portion that pushes down the restricting projection while sliding, and a second inclined portion that is positioned in the direction of rotation of the rotating body in the one direction and is in contact with and away from the restricting protrusion, It is provided with the rotation apparatus characterized by the above-mentioned.

  According to a fifth aspect of the present invention, in the rotating device according to the fourth aspect of the invention, the restricting projection is a slide portion that is pushed down in accordance with the slide of the first inclined portion of the engagement recess, and the engagement recess. And a contact portion that comes into contact with and separates from the second inclined portion.

  According to a sixth aspect of the present invention, in the rotating device according to any one of the third to fifth aspects of the present invention, the length of the restriction projection protruding from the pedestal toward the rotating body is the engagement. The rotating device is characterized in that it is formed to be equal to or slightly longer than the depth of the concavity.

  According to a seventh aspect of the present invention, in the rotating device according to any one of the third to sixth aspects, the urging member urges the rotation restricting member disposed in the storage portion in a pushing direction. In this case, the rotating device is characterized in that the lower side of the pedestal portion is disposed in the storage portion in a state where the upper side of the pedestal portion is pushed out of the storage portion.

  The invention according to claim 8 is a timepiece comprising the rotating device according to any one of claims 1 to 7.

DESCRIPTION OF SYMBOLS 1 Wristwatch case 9 Notch part 10 Rotating device 11 Rotating bezel 12 Rotation restricting member 13 Coil spring 15 Engaging recessed part 15a 1st inclination part 15b 2nd inclination part 15c Bottom part 16 Control protrusion part 16a Slide part 16b Contact part 16c Upper end part 17 Base part 18 Guide shaft 20, 26, 31 Storage hole part 20a, 31a Large diameter hole part 20b, 31b Small diameter hole part 25 Leaf spring 30 Elastic part

Claims (8)

The device body;
A rotating body that is rotatably arranged on the outer periphery of the apparatus main body and that has engagement recesses provided on the lower surface at equal intervals along the circumference;
The device main body located below the rotating body is arranged so as to be able to appear and move toward the rotating body and not to rotate, and in any one of the engaging recesses according to the rotation of the rotating body in one direction. A rotation restricting member that removably engages and restricts the rotational position of the rotating body;
A biasing member that biases the rotation regulating member toward the rotating body;
A rotating device comprising:   2. The rotating device according to claim 1, wherein at one or a plurality of positions of the device main body located on the lower side of the rotating body, a storage unit that arranges the rotation restricting member so as to protrude and retract toward the rotating body. A rotating device is provided.   3. The rotating device according to claim 1, wherein the rotation restricting member is provided with a restricting protrusion that is removably inserted into the engaging recess of the rotating body, the restricting protrusion, and an outer periphery. And a pedestal portion that is larger than the inner periphery of the engaging recess.   4. The rotating device according to claim 3, wherein the engaging recess is located on a side opposite to the rotating direction of the rotating body in the one direction, and slides in contact with the restricting protrusion while sliding the restricting protrusion. A first inclined portion that is pushed down; and a second inclined portion that is positioned in the direction of rotation of the rotating body in the one direction and is in contact with the regulating projection portion so as to be able to contact and separate. Rotating device.   5. The rotating device according to claim 4, wherein the restricting projection portion is pressed against a slide portion that is pushed down in accordance with a slide of the first inclined portion of the engaging recess, and the second inclined portion of the engaging recess. A rotating device comprising: an abutting portion that abuts so as to be able to contact and separate.   6. The rotating device according to claim 3, wherein a length of the restricting protrusion protruding from the pedestal toward the rotating body is equal to a depth of the engaging recess. A rotating device characterized in that it is formed a little longer.   7. The rotating device according to claim 3, wherein the biasing member is biased in a direction to push out the rotation restricting member disposed in the storage portion, and is located on an upper side of the pedestal portion. The rotating device is characterized in that the lower side of the pedestal part is arranged in the storage part in a state where the base part is pushed out of the storage part. A timepiece comprising the rotating device according to any one of claims 1 to 7.

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