JP6123834B2 - Lock member, switch device, and clock - Google Patents

Description

The present invention relates to a lock member, a switch device , and a timepiece.

For example, as described in Patent Document 1, a wristwatch includes a wristwatch case provided with a switch device in which an operation member such as a crown can be pulled out.
This type of switch device is configured to correct the time by pulling out an operating member protruding outward from the watch case and rotating the operating member in this state.

JP 2006-194834 A

In such a switch device, a winding stem pipe is attached to the through hole of the watch case, and the shaft portion of the operating member is inserted into the winding stem pipe, and the outer end portion of the winding stem is attached to the shaft portion of the operating member. The winding stem is configured to slide and rotate according to the operation of the outer end portion of the operation member.

In this case, a ring member having a plurality of engaging projections is attached to the operation member.
The winding stem pipe has a small-diameter portion that is attached to the through hole of the watch case and a large-diameter portion that protrudes to the outside of the watch case, and the engagement convex portion of the ring member is formed on the outer peripheral surface of the large-diameter portion. A plurality of locking grooves that are detachably locked are provided.

The plurality of locking groove portions are configured so that the guide groove for attachment and detachment that guides the engagement convex portion of the ring member so as to be detachable in the axial direction of the winding stem pipe and the engagement convex portion of the ring member move in the axial direction. A lock groove that regulates and locks the engaging convex portion and a communication groove that guides the engaging convex portion of the ring member to one of the guide groove and the locking groove are provided.

For this reason, in this switch device, when the operating member is locked, when the engaging protrusion of the ring member is inserted into the guide groove and pushed in, and the operating member is rotated in this state, the engaging protrusion of the ring member is The guide groove moves from the guide groove to the lock groove, and the lock protrusion restricts the engagement protrusion from moving in the axial direction of the winding stem pipe, thereby locking the operation member in the pushed state.

Further, in this switch device, when the operation member is unlocked, when the operation member is pushed and rotated, the engagement convex portion of the ring member located in the lock groove moves from the lock groove to the guide groove through the communication groove. The engagement projections are unlocked by the lock grooves, and the engagement projections of the ring member move in the axial direction in this state to disengage from the guide grooves. it can.

However, in such a switch device, when unlocking the operation member, if the operation member is not pushed and rotated, the engagement protrusion of the ring member located in the lock groove is separated from the lock groove. In addition to the problem that the operability of the operation member is poor, the operation member is unlocked if the operation member is locked and the outer end of the operation member hits an object and rotates carelessly. There are also problems such as the possibility of malfunction.

The problem to be solved by the present invention is to provide a lock member, a switch device , and a timepiece that can be easily unlocked and can prevent inadvertent rotation of the operation member in the locked state.

The present invention includes an operation head, and operating shaft, wherein arranged on the outside of the operating shaft and an inner operating head, said operating head of the operating member comprising a cylindrical portion with a convex portion Is a lock member that is disposed outside the operation shaft portion and restricts rotation of the operation member in one direction, and includes a first protrusion, a second protrusion, and the first protrusion. and a recess located between the second protrusion and the second protrusion, the said locking member in a state where the convex portion of the tubular portion of the operating member in the recess is located one It is a locking member characterized by preventing further rotation in the direction.

According to the present invention, Ru can prevent inadvertent rotation of the operating member in the locked state of the operation member.

1 is an enlarged perspective view of a wristwatch showing a first embodiment in which the switch device of the present invention is applied to a wristwatch. It is an expanded sectional view of the principal part in the AA arrow of the wristwatch shown in FIG. FIG. 3 is an enlarged cross-sectional view of a main part showing a state in which the lock by the lock member is released and the operation member is pushed out in the switch device shown in FIG. 2. FIG. 3 is an enlarged perspective view showing a cylindrical member of the switch device shown in FIG. 2. The cylindrical member shown by FIG. 4 is shown, (a) is the enlarged side view, (b) is the expanded sectional view. FIG. 3 is an enlarged sectional view showing an operation member of the switch device shown in FIG. 2 and a lock member provided therein. FIG. 7 is an enlarged perspective view of the lock member shown in FIG. 6. FIG. 3 is an enlarged perspective view of a main part showing a state in which the engaging protrusion of the cylindrical member is engaged with the locking portion of the locking member to lock the locking member in the switch device shown in FIG. 2. It is the expansion perspective view of the principal part which showed the state by which the locking member shown by FIG. 8 rotated and the engagement protrusion part of the cylindrical member left | separated from the locking part of the locking member, and the lock | rock was cancelled | released. It is the expansion perspective view of the principal part which showed the state by which the locking member shown by FIG. 9 was extruded. In 2nd Embodiment which applied the switch apparatus of this invention to the wristwatch, it is the expansion perspective view which showed the cylindrical member of the switch apparatus. It is the expansion perspective view which showed the lock member which the engaging protrusion part of the cylindrical member shown by FIG. 11 engages. FIG. 13 is an enlarged perspective view of a main part showing a state in which the engaging protrusion of the cylindrical member in the switch device shown in FIGS. 11 and 12 engages with the locking part of the locking member to lock the locking member. FIG. 14 is an enlarged perspective view of a main part illustrating a state in which the lock member illustrated in FIG. 13 is rotated and the engagement protrusion of the cylindrical member is separated from the lock part of the lock member and unlocked. FIG. 15 is an enlarged perspective view of a main part illustrating a state in which the lock member illustrated in FIG. 14 is pushed out.

(First embodiment)
A first embodiment in which the switch device of the present invention is applied to a wristwatch will be described below with reference to FIGS.
The wristwatch includes a wristwatch case 1 as shown in FIGS. The watch case 1 includes a case body 2, a bezel 3, and a decorative panel 4.

The case body 2 is made of synthetic resin, and has a configuration in which a metal reinforcing member 2a is embedded therein as shown in FIGS. The bezel 3 is made of synthetic resin such as urethane resin, and is provided on the outer peripheral surface of the case body 2. The decorative panel 4 is made of a metal plate, and is attached to the upper surface of the case body 2 by a presser ring 5.

Further, as shown in FIGS. 2 and 3, a watch glass 6 is attached to the upper opening of the case body 2 of the watch case 1 via a packing 6a. A back cover 7 is attached to the lower part of the case body 2 of the watch case 1 via a waterproof ring 7a. Further, inside the wristwatch case 1, a watch module 8 is provided in a state of being pressed by a parting plate 9 and a presser ring 10. The timepiece module 8 includes various parts (not shown) necessary for the timepiece.

Moreover, as shown in FIGS. 1-3, the switch apparatus 11 is provided in the side part located in this wristwatch case 1 at the 3 o'clock side. The switch device 11 is for switching the mode of the timepiece module 8 and correcting the time, and includes a winding stem 12, a cylindrical member 13, an operating member 14,
And a locking member 15.

In this case, a through-hole 16 that penetrates the inside and the outside of the watch case 1 is provided in the side portion of the watch case 1 that is located at the 3 o'clock side, as shown in FIGS. This through hole 1
6 is a rectangular small-diameter hole portion 16a located on the inner side of the wristwatch case 1, and the wristwatch case 1
And a circular large-diameter hole portion 16b positioned on the outer side of the outer periphery, and the entirety is formed in a stepped shape.
The cylindrical member 13 of the switch device 11 is fitted in the through hole 16.

As shown in FIGS. 2 to 4, the cylindrical member 13 includes a small-diameter cylindrical portion 13 a that is attached to the small-diameter hole portion 16 a of the through-hole 16 and protrudes into the watch case 1, and a large-diameter hole portion 16 b of the through-hole 16. And a large-diameter cylindrical portion 13c projecting to the outside of the wristwatch case 1.
The small-diameter cylindrical portion 13a of the cylindrical member 13 is configured so that the cylindrical member 13 does not rotate in the through-hole 16 by forming a portion arranged in the small-diameter hole portion 16a of the through-hole 16 in a square shape. Has been.

Moreover, as shown in FIGS. 2-4, the small diameter cylinder part 13a of this cylindrical member 13 is formed in the cylindrical shape in the location which protrudes in the wristwatch case 1. As shown in FIG. A ring mounting groove 17 is provided in a cylindrical portion of the small diameter cylindrical portion 13a, and a retaining ring 18 such as an E ring is mounted in the ring mounting groove 17. Thereby, the cylindrical member 13 is attached in the through hole 16 of the watch case 1 without coming out of the watch case 1 by the retaining ring 18.

Further, as shown in FIGS. 2 to 5, a plurality of packing grooves 19 are provided on the outer peripheral surface of the medium diameter cylindrical portion 13 b of the cylindrical member 13. The plurality of packing grooves 19 have a wristwatch case 1.
The waterproof packing 20 is attached to the inner peripheral surface of the large-diameter hole portion 16b in the through-hole 16. Further, the large-diameter cylindrical portion 13c of the cylindrical member 13 includes a flange portion 21 that contacts the outer end surface of the watch case 1, a plurality of engagement protrusion portions 22 that protrude in the radial direction, and the plurality of engagement protrusion portions 22. And a groove portion 23 adjacent to each other.

In this case, as shown in FIGS. 2 to 5, the collar portion 21 is provided on the outer periphery of the end portion of the cylindrical member 13 on the wristwatch case 1 side of the large-diameter cylindrical portion 13 c. As a result, the collar portion 21 comes into contact with the outer end surface of the watch case 1 and the retaining ring 18 of the small-diameter cylindrical portion 13a comes into contact with the inner end surface of the watch case 1 so that the cylindrical member 13 protrudes and protrudes from the watch case 1. It is comprised so that the position of a direction may be controlled.

As shown in FIGS. 2 to 5, the depth of the groove 23, that is, the diameter of the bottom, is formed to be approximately the same as the outer diameter of the medium-diameter cylindrical portion 13 b. The plurality of engaging protrusions 22 are provided at intervals of 120 degrees on the outer end of the large-diameter cylindrical portion 13 c of the cylindrical member 13. The plurality of engaging protrusions 2
2, the length protruding in the radial direction is substantially the same as the depth of the groove 23. Thereby, as for the some engagement protrusion part 22, each outer peripheral end is formed in the same magnitude | size as the outer peripheral surface of the large diameter cylinder part 13c.

On the other hand, as shown in FIGS. 2, 3, and 6, the operation member 14 includes an operation shaft portion 24 that is inserted into the cylindrical member 13 and a cap-shaped cap provided on the outer end portion of the operation shaft portion 24. Operation head 2
And 5. In this case, inside the cylindrical member 13, as shown in FIG. 5 (b), a small diameter hole 26 a provided in the small diameter cylindrical portion 13 a protruding into the watch case 1 and a through hole 16 of the watch case 1. Large-diameter hole 2 provided from the small-diameter cylindrical portion 13a to the large-diameter cylindrical portion 13c.
6b.

As shown in FIGS. 2, 3, and 6, the operation shaft portion 24 of the operation member 14 has an axial length that is substantially the same as the length of the large-diameter hole 26 b of the cylindrical member 13. . This
The operation shaft portion 24 is inserted into the large-diameter hole 26b of the cylindrical member 13, and a plurality of waterproof rings 27 provided on the inner peripheral surface of the large-diameter hole 26b of the cylindrical member 13 are in elastic contact with the inserted outer peripheral surface. It is configured to rotate and slide in this state.

As shown in FIGS. 2, 3, and 6, the shaft hole 28 is continuous between the end of the wristwatch case 1 and the middle of the operation head 25. Is provided.
The shaft hole 28 of the operation shaft portion 24 has a square-shaped square hole portion 28a located on the wristwatch case 1 side and a circular round hole portion 28b located on the operation head 25 side. The portion 28b is configured to be inscribed in the square hole portion 28a.

Further, as shown in FIGS. 2 and 3, the operating shaft portion 24 is configured to be connected to the winding stem 12 by a connecting shaft 30 inserted into the shaft hole 28. That is, the connecting shaft 30 is attached to the outer end portion of the winding stem 12, and in this state, the connecting shaft 30 is inserted into the shaft hole 28 of the operation shaft portion 24 in the large diameter hole 26b through the small diameter hole 26a of the cylindrical member 13, thereby winding the winding shaft. The true 123 is configured to be connected to the operation shaft portion 24.

In this case, as shown in FIGS. 2 and 3, the intermediate portion of the connecting shaft 30 is provided with a flange portion 30 a and a washer 30 b that move within the square hole portion 28 a in the shaft hole 28 of the operation shaft portion 24. Yes. The washer 30b is a flat plate whose outer shape is formed in the same rectangular shape as the square hole portion 28a of the operation shaft portion 24, and its central portion is attached to the connecting shaft 30. In this state, the square hole portion of the operation shaft portion 24 is provided. 28a, and the rotation of the operating shaft portion 24 is transmitted to the connecting shaft 30 so that the connecting shaft 3
It is configured to rotate 0.

Further, in the shaft hole 28 of the operation shaft portion 24, as shown in FIGS. 2 and 3, a coil spring 31 is provided.
Is arranged. The coil spring 31 is disposed between the flange portion 30a of the connecting shaft 30 and the back portion (right end portion in FIG. 2) located outside the circular hole 28b of the shaft hole 28, and the operation shaft portion 24 is a cylindrical member. 13 is configured to be urged in the direction of pushing out from the inside of the large-diameter hole 26b toward the outside of the watch case 1.

On the other hand, as shown in FIGS. 2, 3, and 6, the operation head 25 of the operation member 14 is formed substantially in a cap shape and is formed integrally with the outer end portion of the operation shaft portion 24. . The operation head 25 has an inner diameter larger than the outer diameter of the large-diameter cylindrical portion 13 c of the cylindrical member 13 and is formed to have the same size as the outer diameter of the flange portion 21 of the cylindrical member 13. The operation head 25 is
The axial length inside thereof is the same as or slightly longer than the axial length of the large-diameter cylindrical portion 13c of the cylindrical member 13.

As shown in FIGS. 2, 3, 6, and 7, a lock member 15 is fixed inside the operation head 25. The lock member 15 is a ring portion 32 that is fitted into the operation head 25.
And a plurality of elastic support portions 33 provided on the outer end portion of the ring portion 32, and a plurality of lock portions 34 respectively provided on the plurality of elastic support portions 33.

As shown in FIGS. 2, 3, 6, and 7, the ring portion 32 has an outer peripheral surface of the operation head 2.
It is fixed to the inner peripheral surface of 5 by press-fitting or bonding, and is integrated with the operation head 25. The ring portion 32 is formed so that its inner diameter is slightly larger than the outer diameter of the large-diameter cylindrical portion 13c of the cylindrical member 13, and rotates and slides along the outer peripheral surface of the large-diameter cylindrical portion 13c. ing.

As shown in FIGS. 2, 3, 6, and 7, the plurality of elastic support portions 33 are end surfaces on the outer side (upper side in FIG. 7) of the ring portion 32, that is, outer end surfaces located on the outer side of the watch case 1. Are provided so as to protrude along the axial direction of the large-diameter cylindrical portion 13c of the cylindrical member 13, and are configured to elastically deform in the radial direction in this state.

That is, as shown in FIG. 6 and FIG. 7, the plurality of elastic support portions 33 are provided with a gap S between the outer surface and the inner peripheral surface of the operation head 23, and the gap S is elastic in the radial direction. It is configured to be deformed. The plurality of elastic support portions 33 are provided at three positions on the outer end face of the ring portion 32 at intervals of 120 degrees. Further, the plurality of elastic support portions 33 are configured such that the inner surface thereof rotates and slides along the outer peripheral surface of the large-diameter cylindrical portion 13 c of the cylindrical member 13.

Moreover, the some lock part 34 is each provided in each inner surface of the some elastic support part 33, as shown in FIGS. The lock portion 34 includes a rotation restricting portion 35 that restricts the rotation of the lock member 15 when the outer end portion of the engagement protrusion 22 of the cylindrical member 13 is engaged, and the engagement protrusion 2.
And a slide restricting portion 36 that restricts the sliding of the lock member 15 when the side surface (the lower surface in FIG. 9) of the engaging protrusion 22 located on the side surface of the wristwatch case 1 contacts.

As shown in FIGS. 6 to 10, when the lock member 15 rotates in one direction (clockwise direction in FIG. 9), the rotation restricting portion 35 causes the engagement protrusion 22 to elastically deform the elastic support portion 33. In the state where the first projecting portion 37 overcoming the engagement, the engaging recessed portion 38 engaged with the engaging projecting portion 22 overcoming the first projecting portion 37, and the engaging projecting portion 22 engaged with the engaging recessed portion 38. A second protrusion 39 that prevents further rotation of the lock member 15 in one direction (clockwise direction).

In this case, as shown in FIG. 7, the first protrusion 37 of the rotation restricting portion 35 is formed in a gently inclined mountain shape, and the protruding length in the radial direction is the amount of elastic deformation of the elastic support portion 33, That is, the elastic support portion 33 is formed shorter than the gap S that is displaced by being expanded in the radial direction. As a result, the first protrusion 37 is configured to elastically deform the elastic support portion 33 when the engagement protrusion 22 contacts and moves in the rotational direction.

Further, as shown in FIG. 7, the engagement recess 38 of the rotation restricting portion 35 is a recess that is continuous with the first protrusion 37, and is formed in a recess having substantially the same shape as the engagement protrusion 22. As a result, the engagement recess 38 is elastically engaged with the engagement protrusion 22 when the engagement protrusion 22 gets over the first protrusion 37 and the elastic support portion 33 returns to its original position. It is configured as follows.

Further, as shown in FIG. 7, the second protrusion 39 of the rotation restricting portion 35 is formed in a mountain shape having a steeper slope than the first protrusion 37, and the protruding length in the radial direction is the elastic support portion. It is formed longer than the gap S which is the displacement length of 33 in the radial direction. As a result, even if the engaging protrusion 22 comes into contact with the second protrusion 39 and the elastic support 33 is elastically deformed, the tip of the second protrusion 39 is on the rotational movement locus with respect to the engaging protrusion 22. By being positioned, the engaging projection 22 is configured not to get over.

Further, the slide restricting portion 36 that restricts the slide of the lock member 15 is provided at a position located on the wristwatch case 1 side of the rotation restricting portion 35 as shown in FIGS. The slide restricting portion 36 has a side surface in the axial direction of the engaging protrusion 22 (until the engaging protrusion 22 passes over the first protrusion 37 of the rotation restricting portion 35 and engages with the engaging recess 38). In FIG. 9, the lower surface is in contact. Thereby, the slide restricting portion 36 is configured to prevent the lock member 15 from sliding toward the outside of the watch case 1.

By the way, the winding stem 12 connected to the operation member 14 is slidably disposed in the timepiece module 8 in the wristwatch case 1 as shown in FIGS. This winding stem 12 is
As shown in FIG. 2, when the operation head 25 of the operation member 14 is pushed against the spring force of the coil spring 31 and the operation head 25 is locked by the lock member 15 in this state, the slide operation is performed. In other words, the normal clock mode in which the switch operation is not performed is maintained.

Further, as shown in FIG. 3, the winding stem 12 is configured such that the operation head 25 of the operation member 14 is unlocked by the lock member 15, and the operation head 25 is moved by the spring force of the coil spring 31. Even when it is pushed out, it is configured to maintain a normal timepiece mode that does not slide and does not switch.

Further, as shown in FIG. 3, the winding stem 12 is configured such that the operation head 25 of the operation member 14 is unlocked by the lock member 15, and the operation head 25 is moved by the spring force of the coil spring 31. When the operating head 25 is further pulled out of the wristwatch case 1 in the state of being pushed out to the outside as shown by a two-dot chain line in FIG. When the operation head 25 rotates in this state, the time is adjusted by rotating with the rotation.

Next, the operation of the wristwatch switch device 11 will be described.
When this switch device 11 is used, the operation member 1 is in the state shown in FIGS.
4 is rotated counterclockwise. Then, with the rotation of the operation head 25, the lock member 15 rotates counterclockwise, and the lock of the engagement protrusion 22 of the cylindrical member 13 locked by the lock member 15 is released.

That is, as shown in FIGS. 2 and 8, the lock member 15 is engaged with the rotation restricting portion 35 of the lock portion 34 and the engagement protrusion 22 of the cylindrical member 13 to restrict the rotation of the lock member 15. At the same time, the side surface (the lower surface in FIG. 8) of the engagement protrusion 22 of the cylindrical member 13 is brought into contact with the slide restricting portion 36 of the lock portion 34 to restrict the slide of the lock member 15. As a result, the lock member 15 is locked in a state where the operation head 25 of the operation member 14 is pushed.

In this state, when the operation head 25 is rotated 60 degrees counterclockwise, the lock member 15 is rotated 60 degrees in the same direction, and the rotation restricting portion 35 and the slide restricting portion 3 of the lock portion 34 are thereby rotated.
6 rotates 60 degrees with respect to the engaging protrusion 22 of the cylindrical member 13. At this time, the engagement protrusion 22 relatively moves from the engagement recess 38 of the rotation restricting portion 35 toward the first protrusion 37, and the engagement protrusion 22 contacts the first protrusion 37.

Then, the elastic support part 33 is elastically deformed so as to be pushed by the engagement protrusion part 22 and to be spread in the radial direction. As a result, the engagement protrusion 22 is moved to the first position as the lock member 15 rotates.
While overcoming the protrusion 37 relatively, the side surface (the lower surface in FIG. 8) of the engagement protrusion 22 rotates and moves along the slide restricting portion 36. As shown in FIG. Part 3
5 and the slide restricting portion 36 are released, and the lock member 15 is unlocked with respect to the engaging protrusion 22.

Thus, when the lock of the lock member 15 with respect to the engagement protrusion 22 of the cylindrical member 13 is released, the operating head 25 and the lock member 15 together with the spring force of the coil spring 31 as shown in FIGS. Is pushed toward the outside of the watch case 1. At this time,
The plurality of engagement protrusions 22 are located between the plurality of elastic support portions 33 apart from the plurality of lock portions 34 of the lock member 15, and in this state, the lock member 15 is operated by the spring force of the coil spring 31. Extruded with 25.

At this time, as shown in FIG. 3, the operation shaft portion 24 of the operation member 14 is connected to the cylindrical member 13.
The connecting shaft 30 inserted in the operation shaft portion 24 does not slide. For this reason, the winding stem 12 connected to the connecting shaft 30 does not slide and maintains the normal timepiece mode. In this state, as shown in FIG. 10, the plurality of engaging protrusions 22 approach the ring portion 32 of the lock member 15 and are separated from the plurality of lock portions 34 toward the watch case 1 side.
The lock member 15 is in a rotatable state. For this reason, the operating head 25 is rotated so that the winding stem 1
Even if 2 is rotated, the switch does not operate.

And in this state, as shown by a two-dot chain line in FIG.
The connecting shaft 30 is moved toward the outside of the watch case 1 by the operating shaft portion 24, and the connecting shaft 3
With the movement of 0, the winding stem 12 is pulled out. Thereby, the mode of the timepiece module 6 is switched to the time correction mode. In this state, when the operation head 25 is rotated, the winding stem 12 rotates with the rotation, and the time is adjusted according to the rotation of the winding stem 12.

On the other hand, when the switch device 11 is not used, first, the operation member 14 is pushed together with the lock member 15. At this time, as shown in FIG. 3, the operating head 25 moves the connecting shaft 30 toward the wristwatch case 1 while compressing the coil spring 31 in the operating shaft portion 24, so that the winding stem 1
Push 2 in. Thereby, the mode of the timepiece module 6 is switched from the time correction mode to the normal timepiece mode.

In this state, the operation member 14 is further pushed together with the lock member 15. At this time, when the engaging projection 22 of the cylindrical member 13 comes into contact with the locking portion 34 of the locking member 15 and the operating head 25 cannot be pushed in, the operating head 25 is rotated 60 degrees to As shown in Figure 10,
The lock portion 34 of the lock member 15 is separated from the engagement protrusion 22 of the cylindrical member 13.

When the operation head 25 moves together with the lock member 15 to the wristwatch case 1 side, the ring portion 32 of the lock member 15 abuts against the collar portion 21 of the cylindrical member 13 as shown in FIGS. In this state, when the operation head 25 is rotated 60 degrees clockwise, the lock portion 34 of the lock member 15 moves toward the engagement protrusion portion 22 of the cylindrical member 13, and the rotation restricting portion 35 of the lock portion 34 is moved. The engagement protrusion 22 is engaged with the slide restricting portion 36 and the position is restricted.

In other words, at this time, the plurality of engaging projections 22 abut on the first projections 37 of the plurality of rotation restricting portions 35 to spread the elastic support portions 33 in the radial direction and get over the first projections 37. At the same time, the side surfaces (lower surfaces in FIG. 9) of the plurality of engaging protrusions 22 rotate and move while contacting the slide restricting portion 36. And when the plurality of engaging protrusions 22 get over each first protrusion 37,
The plurality of engaging protrusions 22 engage with the respective engaging recesses 38 of the plurality of rotation restricting portions 35.

Thereby, the position of the plurality of engagement protrusions 22 in the rotation direction is restricted by the plurality of rotation restriction parts 35, and the position of the plurality of engagement protrusions 22 in the slide direction is restricted by the plurality of slide restriction parts 36. The lock member 15 is locked with respect to the cylindrical member 13. In this state, even if the operating head 25 is rotated in the clockwise direction, the plurality of engaging protrusions 22 abut on the second protrusions 39 of the plurality of rotation restricting portions 35 and the lock member 15 does not rotate. Operation head 2
5 does not rotate.

That is, when the operating head 25 rotates clockwise and the plurality of engaging protrusions 22 come into contact with the second protrusions 39 of the plurality of rotation restricting portions 35, the elastic support portion 33 is expanded in the radial direction. Even if it comes into contact with the inner surface of the operation head 25, the tip of each second protrusion 39 is positioned on the rotational movement locus with respect to each engagement protrusion 22. For this reason, the plurality of engaging protrusions 22 do not get over the plurality of second protrusions 39. Thereby, the operation head 25 is locked by the lock member 15 without rotating in the clockwise direction.

Thus, according to the switch device 11 of this wristwatch, the cylindrical member 13 attached to the through hole 16 of the wristwatch case 1, the operation shaft portion 24 inserted into the cylindrical member 13, and the operation head of the outer end portion And the locking member 15 that is fixed in the operating head 25 and slides and rotates along the outer periphery of the cylindrical member 13 together with the operating head 25, and the engaging projection 22 on the cylindrical member 13. The elastic protrusion 33 is elastically engaged with the elastic support 33 that is provided with a gap S between the lock member 15 and the inner peripheral surface of the operation head 25 and elastically deforms in the radial direction. With the lock portion 34, the unlocking operation can be easily performed,
In addition, inadvertent rotation of the operation member 14 in the locked state can be prevented.

That is, in the switch device 11, the operation member 14 is locked when the operation member 14 is locked.
Is pushed and rotated, the engaging projection 22 of the cylindrical member 13 can elastically deform the elastic support portion 33 of the lock member 15, so that the lock portion 34 is engaged with the engagement projection by the elastic force of the elastic support portion 33. The portion 22 can be locked, thereby preventing inadvertent rotation of the operation member 14 in the locked state. Further, when unlocking the operation member 14, the lock member for the engagement protrusion 22 can be simply rotated by rotating the operation member 14 against the elastic restricting force of the lock 34 for the engagement protrusion 22. 34 can be easily unlocked.

In this case, the lock portion 34 of the operation member 14 is locked by the rotation restricting portion 35 that engages with the engagement protrusion 22 of the cylindrical member 13 and restricts the rotation of the lock member 15, and the engagement protrusion 22 abuts. And a slide restricting portion 36 for restricting the slide of the member 15, and therefore the engaging protrusion 22.
When the elastic support portion 33 of the lock member 15 is elastically deformed, the engagement protrusion 22 is engaged with the rotation restricting portion 35, so that the rotation of the lock member 15 is restricted by the engagement protrusion 22. In addition, when the engagement protrusion 22 abuts against the slide restricting portion 36, the slide of the lock member 15 can be restricted by the engagement protrusion 22, so that the operation member 14 can be reliably and satisfactorily improved. Can be locked.

The rotation restricting portion 35 includes a first protrusion 37 that the engagement protrusion 22 of the cylindrical member 13 gets over by elastically deforming the elastic support 33 when the lock member 15 rotates in one direction, for example, clockwise. And an engagement recess 38 that engages with the engagement protrusion 22 that has passed over the first protrusion 37, and in one direction of the lock member 15 with the engagement protrusion 22 engaged with the engagement recess 38. The second protrusion 39 that prevents further rotation of the engagement member 22 can be reliably and satisfactorily locked by the elastic force of the elastic support portion 33.

That is, the rotation restricting portion 35 engages the engaging protrusion 22 with the engaging recess 38 when the engaging protrusion 22 spreads the elastic support portion 33 in the radial direction and gets over the first protrusion 37. Thus, the position of the engaging projection 22 in the rotation direction can be regulated. In this state, when the operation head 25 is rotated in the clockwise direction, the engaging protrusion 22 is moved to the second protrusion 39.
Even when the elastic support portion 33 is pushed and expanded in the radial direction, the tip end portion of the second projection portion 39 protrudes on the rotational movement locus with respect to the engagement projection portion 22, so that the engagement projection portion 22 is The second protrusion 39 is not climbed over. For this reason, it is possible to reliably prevent the operating head 25 from rotating clockwise, and thus the operating head 25 can be reliably locked.

In this case, three engagement protrusions 22 are provided at the outer end of the cylindrical member 13 at intervals of 120 degrees, and three elastic support portions 33 are provided at the outer end of the lock member 15 at intervals of 120 degrees. As a result, each time the operation head 25 is rotated 60 degrees, the plurality of engaging protrusions 22 are reliably and satisfactorily engaged and disengaged by the respective lock portions 34 provided on the plurality of elastic support portions 33, respectively. As a result, the operability of the operation head 25 can be improved.

(Second Embodiment)
Next, a second embodiment in which the switch device of the present invention is applied to a wristwatch will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected and demonstrated to the same part as 1st Embodiment shown by FIGS.
As shown in FIGS. 11 and 12, the wristwatch switch device 40 has a configuration in which an engaging projection 41 and a lock member 42 of the cylindrical member 13 are different from those of the first embodiment.
The configuration is almost the same as that of the embodiment.

As in the first embodiment, the switch device 40 is provided on a side portion of the watch case 1 that is located on the 3 o'clock side. Further, the switch device 40 is for switching the mode of the timepiece module 8 provided in the wristwatch case 1 and adjusting the time, as in the first embodiment, and includes a winding stem 12, a cylindrical member 13, an operation A member 14 and a lock member 15 are provided.

As shown in FIG. 11, the engagement protrusion 41 of the cylindrical member 13 has a diameter at the outer end of the large-diameter cylindrical portion 13 c of the cylindrical member 13, that is, the outer end located on the outer side of the watch case 1. Protruding in the direction. In addition, six engagement protrusions 41 are provided at an outer end portion of the large-diameter cylindrical portion 13c of the cylindrical member 13 at intervals of 60 degrees.

In this case, the large-diameter cylindrical portion 13c of the cylindrical member 13 is provided with a groove portion 23 adjacent to the plurality of engaging protrusions 41 as shown in FIG. As in the first embodiment, the groove 23 is formed so that its depth, that is, the diameter of the bottom, is approximately the same as the outer diameter of the medium-diameter cylindrical portion 13b. Thus, the plurality of engaging protrusions 41 are formed so that the length protruding in the radial direction is the same as the depth of the groove 23. Thereby, as for the some engagement protrusion part 41, each outer peripheral end is large diameter cylinder part 13c.
It is formed in the same size as the outer peripheral surface.

On the other hand, as shown in FIG. 12, the lock member 15 includes a ring portion 32 fitted into the operation head 25 of the operation member 14, and a plurality of elastic support portions 43 provided at the end of the ring portion 32. And a plurality of lock portions 44 respectively provided on the inner surfaces of the plurality of elastic support portions 43. In this case, three elastic support portions 43 are provided at intervals of 120 degrees on the outer end portion of the ring portion 32 as in the first embodiment.

Further, as in the first embodiment, the plurality of lock portions 44 include a rotation restricting portion 45 that restricts the rotation of the lock member 15 when the outer end portion of the engagement protrusion 41 of the cylindrical member 13 is engaged. Joint protrusion 4
1, that is, a slide restricting portion 46 that restricts the sliding of the lock member 15 when the side surface of the engaging protrusion 41 located on the wristwatch case 1 side abuts.

As in the first embodiment, when the lock member 15 rotates in one direction (clockwise direction in FIG. 14), the rotation restricting portion 45 moves over the elastic protrusion 33 by elastically deforming the elastic support portion 33. The locking member 15 in a state in which the engaging protrusion 38 is engaged with the engaging protrusion 38 that is engaged with the engaging protrusion 41 that has passed over the first protruding part 37, and the engaging protrusion 41. One direction (
A second protrusion 39 that prevents further rotation in the clockwise direction).

As shown in FIGS. 12 to 15, the slide restricting portion 46 is formed in a substantially triangular prism shape that is the same as the shape between the plurality of engaging protrusions 41 of the cylindrical member 13. Accordingly, a plurality of lock portions 4
4 is formed in a substantially triangular shape whose entire shape is the same as the shape between the plurality of engaging projections 41. The plurality of elastic support portions 43 are formed such that the circumferential length thereof is substantially the same as the length between the distal end portions of the plurality of engagement protrusions 41.

According to such a wristwatch switch device 40, in addition to the same effects as those of the first embodiment, six engaging projections 41 are provided on the outer end of the cylindrical member 13 at intervals of 60 degrees, and are elastic. Since the three support portions 33 are provided at the outer end portion of the lock member 15 at intervals of 120 degrees, each time the operation head 25 is rotated 30 degrees, each of the plurality of elastic support portions 33 is provided. The plurality of engaging protrusions 41 can be efficiently engaged and disengaged by the lock portion 34, and thereby the operability of the operation head 25 can be further improved as compared with the first embodiment.

In the first and second embodiments described above, the plurality of engaging protrusions 22 and 41 are provided at the outer end of the cylindrical member 3 at intervals of 120 degrees or six at intervals of 60 degrees. However, the present invention is not limited to this. For example, two engagement protrusions may be provided at intervals of one or 180 degrees, or four at an interval of 90 degrees, or 72 degrees. The configuration may be such that five are provided at intervals of.

In each of the first and second embodiments described above, the elastic support portion 3 is provided on the outer end portion of the lock member 15.
Although the case where three 3's are provided at intervals of 120 degrees has been described, the present invention is not limited to this. For example, only one may be provided, or two may be provided at intervals of 180 degrees, or at intervals of 90 degrees. The configuration may be such that four, five at intervals of 72 degrees, and six at intervals of 60 degrees are provided.

Further, in each of the first and second embodiments described above, the case where the present invention is applied to a wristwatch has been described. However, the present invention is not necessarily a wristwatch, and can be widely applied to various watches such as a travel watch, an alarm clock, a table clock, and a wall clock. Can be applied.

As mentioned above, although several embodiment of this invention was described, this invention is not restricted to these, 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 operation member having a case having a through hole, a cylindrical member attached to the through hole of the case, and a shaft portion and an outer end operation portion inserted into the cylindrical member. And a lock member that is fixed in the operation portion of the operation member and slides and rotates along with the operation portion along the outer periphery of the cylindrical member, and the cylindrical member faces the inner peripheral surface of the lock member. The locking protrusion is provided with a gap between the lock member and the inner peripheral surface of the operation portion, and is elastically deformed in the radial direction. The lock support member is provided on the elastic support portion. And a locking portion that elastically engages the engaging projection when the operating portion is pushed and rotated.

According to a second aspect of the present invention, in the switch device according to the first aspect, the lock portion is
A rotation restricting portion that engages with the engaging protrusion and restricts rotation of the lock member; and a slide restricting portion that contacts the engaging protrusion and restricts sliding of the lock member. This is a switch device.

According to a third aspect of the present invention, in the switch device according to the second aspect, the rotation restricting portion is configured to elastically deform the elastic support portion when the lock member rotates in one direction. A first protrusion overcoming the first protrusion, an engagement recess engaging the engagement protrusion over the first protrusion, and the lock member in a state where the engagement protrusion is engaged with the engagement recess. And a second protrusion for preventing further rotation in the one direction.

According to a fourth aspect of the present invention, in the switch device according to the third aspect, the radial protrusion length of the first protrusion is shorter than the gap, and the radial protrusion of the second protrusion is formed. The switch device is characterized in that the length is longer than the gap.

According to a fifth aspect of the present invention, in the switch device according to any one of the first to fourth aspects, the engagement protrusions are provided at the outer end of the cylindrical member at three intervals of 120 degrees, In the switch device, three elastic support portions are provided at intervals of 120 degrees on an outer end portion of the lock member.

According to a sixth aspect of the present invention, in the switch device according to any one of the first to fourth aspects, six engaging projections are provided at an outer end of the cylindrical member at intervals of 60 degrees, In the switch device, three elastic support portions are provided at intervals of 120 degrees on an outer end portion of the lock member.

The invention according to claim 7 is a timepiece including the switch device according to any one of claims 1 to 6.

DESCRIPTION OF SYMBOLS 1 Watch case 11, 40 Switch apparatus 12 Winding stem 13 Cylindrical member 14 Operation member 15, 42 Lock member 16 Through-hole 22, 41 Engagement projection part 24 Operation shaft part 25 Operation head part 28 Shaft hole 30 Connection shaft 31 Coil spring 32 Ring part 33, 43 Elastic support part 34, 44 Lock part 35, 45 Rotation restricting part 36, 46 Slide restricting part 37 First protrusion 38 Engaging recess 39 Second protrusion

Claims (7)

The operation head includes an operation head, an operation shaft, and an inner side of the operation head of an operation member including a cylindrical portion provided on the inner side of the operation head and outside the operation shaft. A lock member that is disposed outside the operation shaft portion and restricts rotation of the operation member in one direction,
A first protrusion,
A second protrusion,
A recess located between the first protrusion and the second protrusion;
With
The lock member, wherein the second protrusion portion prevents the lock member from further rotating in the one direction in a state where the convex portion of the cylindrical portion of the operation member is located in the concave portion .   The locking member according to claim 1, wherein a protruding length in a radial direction of the second protruding portion is longer than a protruding length in a radial direction of the first protruding portion. With elastic support,
The elastic support portion is provided with the first protrusion, the second protrusion, and the recess,
The lock member according to claim 1, wherein a plurality of the elastic support portions are provided at equal intervals. A case having a through hole;
An operation member disposed in the through hole of the case;
The lock member according to any one of claims 1 to 3, wherein rotation of the operation member in one direction is restricted.
A switch device comprising:   The switch device according to claim 4, wherein the lock member rotates together with the operation member. The lock member is disposed with a gap between the inner peripheral surface of the operation member,
The radial protrusion length of the first protrusion is formed shorter than the gap,
The radial protrusion length of the second protrusion is formed longer than the gap.
The switch device according to claim 4 or 5, wherein   A timepiece comprising the switch device according to any one of claims 4 to 6.

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