CN210776204U - Switch device and timepiece - Google Patents

Abstract

The utility model provides a switch device and a timepiece, realizes thinning, ensures impact resistance and improves design. The switch device includes: a case body (8) provided with a through hole (10); a shaft insertion hole (12a) is provided at the center part and the through hole corresponding to the same axis and is mounted on the outer surface of the case body; A protective member (12) provided with a housing recess (18); and an operation shaft (22) slidably inserted into the through hole (10) and the shaft insertion hole, and an operation shaft (22) provided at the outer end of the operation shaft and slidably accommodated in The operating member (13) of the operating head (23) in the recessed portion is accommodated. Therefore, the inner diameter of the through hole of the case body can be reduced, so that the thickness of the case body in the vertical direction can be reduced. In addition, the operation head is protected by the protective member, so impact resistance can be ensured, and there is no need to install the watch case (1). ) is provided with protective protrusions on the outer periphery, so that the design can be improved.

Description

Switchgear and Clocks

technical field

The utility model relates to a switch device for electronic equipment such as watches and a timepiece equipped with the switch device.

Background technique

For example, as disclosed in Patent Document 1, a switch device for a wristwatch is known to have a configuration in which a tube is fitted into a through hole of a watch case, a cylindrical protective member is screwed and attached to the outer circumference of the tube, and the The operation member is slidably inserted into the tube of the protection member, and the head of the operation member is accommodated in the protection member and protected.

prior art literature

Patent Literature

Patent Document 1: Japanese Patent Laid-Open No. 2000-329867

Such a switch device is configured such that a male screw portion is provided on the outer peripheral surface of a pipe fitted into a through hole of a watch case, and a female screw portion is provided on the inner peripheral surface of the small-diameter cylindrical portion of the protective member, so that the female screw portion of the protective member is formed. The protection member is attached to the outer periphery of the tube by screwing with the external thread portion of the tube, inserting the shaft portion of the operating member into the tube in this state, and storing the head portion of the operating member in the large-diameter cylindrical portion of the protection member for protection.

Utility model content

The problem to be solved by the utility model

However, in such a watch switch device, since a tube is fitted into the through hole of the watch case, and the shaft portion of the operating member is inserted into the tube, the diameter of the through hole of the watch case increases due to the tube, which increases with time. Since the thickness of the watch case in the vertical direction is changed, there is a problem that the thickness of the watch case cannot be reduced.

The problem to be solved by the present invention is to provide a switch device capable of reducing the thickness, ensuring impact resistance, and improving designability, and a timepiece equipped with the switch device.

solutions to problems

Solution 1 of the present invention is a switch device, which is characterized in that it has:

A shell with a through hole;

a protection member attached to the outer surface of the case, provided with an insertion hole in the center portion corresponding to the through hole, and provided with an accommodating portion open to the outside of the case; and

an operation shaft which is slidably inserted into the through hole of the housing and the insertion hole of the protection member, and an operation head provided at an outer end of the operation shaft and slidably accommodated in the storage portion of the protection member operating parts.

Solution 2 The switch device according to solution 1, characterized in that,

The said protection member is attached to the said outer surface of the said case by several screw members.

Solution 3 The switch device according to solution 1, characterized in that:

A buffer member is arranged between the case and the protection member.

Solution 4 The switch device according to solution 3, characterized in that:

The said buffer member is formed in the ring shape which a part was cut away.

Item 5 The switch device according to Item 1, characterized in that,

A first positioning portion for positioning the housing and the protective member is provided.

Item 6 The switchgear according to Item 3, characterized in that:

A second positioning portion for positioning the housing and the buffer member is provided.

Claim 7 The switchgear according to Claim 3, characterized in that:

A third positioning portion for positioning the protection member and the buffer member is provided.

Item 8 The switch device according to Item 1, characterized in that,

The said case is made of a polyamide resin containing carbon fiber or glass fiber.

Item 9 The switch device according to Item 1, characterized in that,

The upper part of the outer diameter of the protective member protrudes upward from the upper part of the housing, and the lower part of the outer diameter protrudes downward from the lower part of the housing.

Scheme 10 is a timepiece, characterized in that:

The switch device according to any one of Claims 1 to 9 is provided.

Utility model effect

According to the present invention, thickness reduction can be achieved, impact resistance can be ensured, and designability can be improved.

Description of drawings

FIG. 1 is an enlarged front view showing an embodiment of a wristwatch to which the present invention is applied.

Fig. 2 is an enlarged side view showing the wristwatch shown in Fig. 1 at the 3 o'clock side.

Fig. 3 is an enlarged perspective view showing an exploded view of the switch device on the three o'clock side of the wristwatch shown in Fig. 1 .

FIG. 4 is an exploded perspective view of the switch device shown in FIG. 3 viewed from the watch case side.

Fig. 5 is an enlarged cross-sectional view showing a main part of the wristwatch shown in Fig. 1 when viewed from the direction A-A.

FIG. 6 is an enlarged cross-sectional view showing a main part of the wristwatch shown in FIG. 2 as viewed in the direction B-B.

FIG. 7 is an enlarged view showing a buffer member and a protection member when viewed from the C-C direction of the switchgear shown in FIG. 6 .

Detailed ways

Hereinafter, an embodiment of a wristwatch to which the present invention is applied will be described with reference to FIGS. 1 to 7 .

As shown in FIGS. 1 and 2 , the wristwatch includes a wristwatch case 1 . On the 12 o'clock side and the 6 o'clock side of the watch case 1, band attachment portions 2 to which a watch band (not shown) is attached are respectively provided.

As shown in FIGS. 1 and 2 , pushbutton switches 3 are provided on the 2 o’clock side, the 4 o’clock side, the 8 o’clock side, and the 10 o’clock side of the watch case 1 , respectively, and the watch case 1 is provided on the 3 o’clock side. Switchgear 4. Moreover, as shown in FIG. 5, the watch glass 5 is provided in the upper opening part of this watch case 1 via the spacer 5a. A back cover 6 is attached to the lower part of the watch case 1 via a waterproof ring 6a.

As shown in FIG. 5 , a timepiece module 7 is provided inside the watch case 1 . Although not shown, the timepiece module 7 includes timepiece functions such as a timepiece movement that rotates hands to indicate the time, a display unit that displays information such as the time electro-optically, a switch element 25 to be described later, and a circuit unit that electrically controls and drives them. various parts required.

In addition, as shown in FIGS. 2 , 3 , and 5 , the watch case 1 includes a case body 8 and an exterior member 9 . The case main body 8 is made of a polyamide resin having high rigidity containing carbon fibers or glass fibers, and is a light-weight and high-strength member. The exterior member 9 is formed of metal such as stainless steel and titanium. The exterior member 9 is attached to the upper outer periphery of the case main body 8 by a plurality of attachment screws 9b (see FIG. 1 ) via the waterproof packing 9a.

On the other hand, as shown in FIGS. 3 to 6 , the switch device 4 includes: a protection member 12 attached to the outer surface of the case body 8 on the 3-point side of the case body 8 provided with the through-hole 10 via a plurality of screw members 11 ; an operation A member 13, which is slidably and rotatably inserted into the shaft insertion hole 12a provided in the center portion of the above-mentioned protective member 12 and the through hole 10 of the case body 8; Component 13 applies force.

In this case, as shown in FIGS. 3 to 6 , through holes 10 are provided on the three o'clock sides of the case main body 8 so as to penetrate from the inside to the outside of the case main body 8 . The outer surface of the case body 8 on the three o'clock side is formed as a substantially circular flat surface 8a. That is, this flat surface 8a is formed in the shape which cut|disconnected the upper part of a circular shape. Moreover, the ring-shaped 1st protrusion part 8b is provided in the edge part of the through-hole 10 of this flat surface 8a.

Moreover, as shown in FIGS. 3-6, the rectangular-shaped 2nd protrusion part 8c is provided in the upper part side of the ring-shaped 1st protrusion part 8b of this flat surface 8a. In addition, both sides of the ring-shaped first protrusion 8b on the flat surface 8a, that is, both sides of the first protrusion 8b in the circumferential direction of the case body 8, do not penetrate into the interior of the case body 8, respectively. A threaded hole 15 is provided in the non-penetrating state.

As shown in FIGS. 3 to 6 , the protection member 12 accommodates an operation head 23 to be described later that protects the operation member 13 , and is formed of a metal such as stainless steel or a synthetic resin having higher strength than the case body 8 . The protective member 12 has a structure in which the bottom portion 17 is provided at the end portion of the cylindrical body portion 16 on the casing body 8 side, and the outer diameter is formed to be larger than the vertical length (thickness) of the casing body 8 .

That is, as shown in FIG. 2 , FIG. 3 , and FIG. 5 , the protective member 12 is formed in such a size that the upper part of the outer diameter protrudes upward from the upper part of the case body 8 , and the lower part of the outer diameter is larger than the upper part of the case body 8 . The lower portion protrudes further to the lower side and does not protrude further to the lower side than the lower surface of the rear cover 6 . Therefore, even if the thickness of the casing main body 8 in the vertical direction is thin, the outer diameter of the protective member 12 can be made large, and the size of the protective member 12 can be ensured to be large.

As shown in FIGS. 3 to 6 , inside the protective member 12 , a circular housing recess 18 is provided so as to be open to the outside of the case body 8 . Moreover, in the center part of the bottom part 17 of this protective member 12, the shaft insertion hole 12a corresponding to the through-hole 10 of the case main body 8 coaxially is provided.

As shown in FIGS. 3 to 6 , the shaft insertion hole 12 a is formed to have an inner diameter slightly larger than the inner diameter of the through hole 10 of the case body 8 . Further, on both sides of the shaft insertion hole 12a of the bottom portion 17 of the protective member 12, a plurality of screw insertion holes 20 into which the plurality of screw members 11 are respectively inserted are provided corresponding to the screw holes 15 of the case body 8, respectively.

As a result, as shown in FIGS. 3 and 6 , the protective member 12 is attached to the case by inserting the plurality of screw members 11 into the screw insertion holes 20 from the housing recess 18 , respectively, and screwing them into the screw holes 15 of the case body 8 . The flat surface 8 a of the outer surface of the body main body 8 . In this case, each of the plurality of screw members 11 includes a screw portion 11 a and a screw head portion 11 b, the screw portion 11 a is screwed into each screw hole 15 of the case body 8 , and the screw head portion 11 b is arranged on the protection member 12 . The thread is inserted into the hole 20.

That is, as shown in FIGS. 6 and 7 , the screw insertion hole 20 of the protection member 12 is provided with a large-diameter spot facing portion 20 a in which the screw head portion 11 b is arranged. Accordingly, the screw head portion 11 b is arranged in the spot facing portion 20 a of the screw insertion hole 20 so as not to protrude from the bottom portion 17 of the protective member 12 into the accommodation recessed portion 18 . Therefore, the bottom portion 17 is formed so that the thickness in the axial direction is substantially the same as or slightly thicker than the length in the axial direction of the screw head portion 11b. Moreover, the outer peripheral wall of the accommodation recessed part 18 is formed so that the thickness may be thinner than the thickness of the bottom part 17 .

As shown in FIGS. 3 to 6 , the operation member 13 includes an operation shaft 22 which is slidably and rotatably inserted into the through hole 10 of the housing body 8 from the shaft insertion hole 12 a of the protection member 12 , and an operation head 23 , which It is provided in the outer end part of this operation shaft 22, and is arrange|positioned in the accommodation recessed part 18 of the protection member 12 so that sliding and rotation are possible.

As shown in FIGS. 3 to 6 , the operation shaft 22 is formed in a round rod shape having an outer diameter substantially the same as the inner diameter of the through hole 10 of the case body 8 . Therefore, in the case main body 8, the length (thickness) in the vertical direction of the case main body 8 is formed to be short (thin) by setting the inner diameter of the through hole 10 to the minimum size in which the operation shaft 22 can be inserted. . In this case, even if the thickness of the case main body 8 in the vertical direction is thin, the protection member 12 can be protected by making the outer diameter of the protective member 12 larger than the thickness in the vertical direction of the case main body 8 . Size of part 12.

In addition, as shown in FIGS. 3 to 6 , the operation shaft 22 is formed so that its axial length is longer than the axial length of the through hole 10 of the case body 8 and the shaft insertion hole 12 a of the protection member 12 , and is longer than the axial length of the case body 8 . The length of the body main body 8 and the protective member 12 in the axial direction is short. Thus, when the operation shaft 22 is inserted into the through hole 10 of the case body 8 and the shaft insertion hole 12 a of the protective member 12 , the inner end portion protrudes into the interior of the case body 8 , and the outer end portion protrudes toward the inside of the protective member 12 . The housing recessed portion 18 protrudes inside.

In this case, as shown in FIGS. 5 and 6 , the operation shaft 22 is configured such that its inner end protrudes into the housing main body 8 , and a disengagement prevention member 24 such as an E-ring is attached to the protruding inner end, The removal prevention member 24 prevents the operation shaft 22 from falling off to the outside of the case body 8 . In addition, the operation shaft 22 is configured so as to cause the switching element 25 of the timepiece module 7 to open and close when the inner end portion is pushed into the case body 8 .

In addition, as shown in FIGS. 5 and 6 , a plurality of waterproof rings 22 a are provided on the outer peripheral surface of the operation shaft 22 . The plurality of waterproof rings 22 a are configured to move in a state of being pressed into contact with the inner peripheral surface of the through-hole 10 of the case body 8 . Thereby, the operation member 13 achieves waterproofing between the outer peripheral surface of the operation shaft 22 and the inner peripheral surface of the through hole 10 by the plurality of waterproof rings 22a.

As shown in FIGS. 3 to 6 , the operation head 23 is formed in a disk shape with an outer diameter slightly smaller than the inner diameter of the housing recess 18 of the protection member 12 , and the center portion thereof and the outer end portion of the operation shaft 22 are integrally formed. . As a result, the operation head 23 is configured to slide in the axial direction in a rotatable state within the housing recess 18 of the protective member 12 .

As shown in FIGS. 4 to 6 , the spring member 14 is a coil spring, and is arranged between the bottom portion 17 and the operation head portion 23 in the housing recess 18 of the protective member 12 . That is, the spring member 14 is configured so that one end portion abuts the bottom portion 17 and the other end portion abuts the operating head portion 23 , and in this state, the operating head portion 23 is urged toward the outside of the case body 8 .

In addition, as shown in FIGS. 3 to 7 , between the protective member 12 and the flat surface 8 a which is the outer surface of the case body 8 , a buffer member 26 for buffering the shock received by the protective member 12 from the outside is arranged. The buffer member 26 is formed in a ring shape having a part of which is the same as or slightly smaller than the outer diameter of the protection member 12, that is, a C-shaped shape.

That is, as shown in FIGS. 3 to 7 , when the buffer member 26 is disposed on the flat surface 8 a of the case main body 8 , the portion protruding from the flat surface 8 a to the upper side of the case main body 8 is cut away. In the shape, a first notch portion 26a is provided at a portion corresponding to the rectangular second protrusion portion 8c provided on the flat surface 8a. In this case, as shown by the broken line in FIG. 7 , the edge of the first notch portion 26a is preferably formed so that the contact area with the flat surface 8a is enlarged so that the outer peripheral side is large, so as to improve the protection member 12 when it receives an impact from the outside. buffering effect.

In addition, as shown in FIGS. 3 to 7 , the bottom portion 17 of the protective member 12 is provided with a circular first recess 27 into which a ring-shaped first recess provided on the flat surface 8 a of the case body 8 is inserted. A protrusion 8b. On the outer periphery of the first concave portion 27 of the bottom portion 17 of the protective member 12 , a third protrusion portion 28 having an outer diameter equal to the inner diameter of the buffer member 26 is formed in a C-shape that is partially cut out.

That is, as shown in FIGS. 3 to 7 , when the bottom portion 17 of the protective member 12 is arranged on the flat surface 8 a of the case body 8 , the third projection portion 28 is configured to be the same as the buffer member 26 in the same manner as the buffer member 26 . A second cutout portion 28a is provided at a portion corresponding to the rectangular second protrusion portion 8c of the flat surface 8a.

In this case, as shown in FIGS. 3 to 7 , a plurality of screw insertion holes 20 corresponding to the plurality of screw holes 15 of the case main body 8 are respectively provided through the third protrusions 28 . Therefore, the bottom portion 17 of the protective member 12 may be formed so that the thickness in the axial direction is substantially the same as the length in the axial direction of the screw head portion 11 b of the screw member 11 . In addition, the plurality of screw insertion holes 20 are opened in the first recessed portion 27, and the first recessed portion 27 is provided with a part of each of the spot facing portions 20a in the bottom portion 17. As shown in FIG.

On the other hand, as shown in FIGS. 3 to 7 , the protective member 12 is configured to be positioned on the flat surface 8 a of the case body 8 by the first positioning portion 30 . The first positioning portion 30 includes an axis positioning portion for positioning the axial center of the protective member 12 with respect to the flat surface 8 a of the case body 8 , and a rotation positioning portion for determining a position relative to the flat surface 8 a of the case body 8 . The position of the protection member 12 in the rotational direction.

That is, as shown in FIGS. 3 to 7 , the shaft positioning portion of the first positioning portion 30 is configured to be inserted into the protection member 12 through the ring-shaped first projection portion 8 b provided on the flat surface 8 a of the casing body 8 . In the circular first recessed portion 27 of the bottom portion 17 , the through hole 10 of the case body 8 and the shaft insertion hole 12 a of the protective member 12 are aligned on the same axis.

In addition, as shown in FIGS. 3 to 7 , the rotation positioning portion of the first positioning portion 30 is configured to be inserted into the protection member 12 through the rectangular second protrusion portion 8c provided on the flat surface 8a of the housing body 8 . The second notch portion 28 a of the third protrusion portion 28 of the bottom portion 17 determines the position in the rotational direction of the protection member 12 centered on the through hole 10 of the case body 8 .

In addition, as shown in FIGS. 3 to 7 , the buffer member 26 is configured to be positioned on the flat surface 8 a of the case body 8 by the second positioning portion 31 . That is, the second positioning portion 31 includes a pair of pin protrusions 31 a provided on the buffer member 26 and a pair of pin holes 31 b provided on the flat surface 8 a of the housing body 8 into which the pair of pin protrusions 31 a are inserted.

As a result, as shown in FIGS. 3 to 7 , the second positioning portion 31 is configured such that the buffer member 26 is inserted into the pair of pin holes 31b on the flat surface 8a of the case body 8 through the pair of pin projections 31a of the buffer member 26 . It is positioned on the flat surface 8 a of the housing body 8 . In this case, the buffer member 26 is configured so that the buffer member 26 can be positioned with respect to the flat surface 8a of the case body 8 by arranging the rectangular second protrusion 8c in the first cutout portion 26a provided in the upper portion. .

In addition, as shown in FIGS. 4 to 7 , the protective member 12 is configured to be positioned relative to the buffer member 26 by the third positioning portion 32 . The third positioning portion 32 is configured to position the bottom portion 17 of the protective member 12 relative to the buffer member 26 by fitting the third protrusion portion 28 of the protective member 12 on the bottom portion 17 into the inner peripheral surface of the buffer member 26 .

That is, as shown in FIGS. 4 to 7 , the third positioning portion 32 is configured such that the outer periphery of the third protruding portion 28 provided on the bottom portion 17 of the protective member 12 corresponds to the inner periphery of the buffer member 26 , and the third protruding portion 28 The outer periphery of the protective member 12 is embedded in the buffer member 26 , thereby positioning the bottom portion 17 of the protective member 12 relative to the buffer member 26 .

Next, the operation of the switch device 4 of such a wristwatch will be described.

When the switch device 4 is assembled to the watch case 1 , first, the positioning buffer member 26 is positioned on the flat surface 8 a on the three o'clock side of the case body 8 by the second positioning portion 31 . At this time, first, the first notch portion 26 a of the buffer member 26 is made to correspond to the rectangular second protrusion portion 8 c provided on the flat surface 8 a of the case body 8 .

In this state, the pair of pin protrusions 31 a of the buffer member 26 are inserted into the pair of pin holes 31 b provided on the flat surface 8 a of the case body 8 . Thereby, the buffer member 26 is positioned and attached to the flat surface 8a in a state in which the rectangular second protrusions 8c of the flat surface 8a are arranged between the first notches 26a without protruding upward of the case body 8 . In this state, the ring-shaped first protrusion 8 b and the plurality of screw holes 15 provided on the flat surface 8 a are arranged inside the buffer member 26 .

Then, the protective member 12 is attached to the flat surface 8 a of the case body 8 via the plurality of screw members 11 . At this time, first, the protective member 12 is positioned with respect to the flat surface 8 a of the case body 8 and the buffer member 26 by the first positioning portion 30 and the third positioning portion 32 . That is, the first positioning portion 30 locates the axial center of the protective member 12 with respect to the flat surface 8 a of the case body 8 by the shaft positioning portion, and determines the protective member 12 with respect to the flat surface 8 a of the case body 8 by the rotation positioning portion. the position of the rotation direction.

In this case, as for the shaft positioning portion of the first positioning portion 30 , the ring-shaped first protrusion portion 8 b provided on the flat surface 8 a of the casing body 8 is inserted into the circle provided on the bottom portion 17 of the protective member 12 correspondingly. shape of the first recess 27 . As a result, the shaft positioning portion of the first positioning portion 30 corresponds to and coincides with the through hole 10 of the case body 8 and the shaft insertion hole 12 a of the protective member 12 on the same axis.

In addition, as shown in FIG. 7 , in the rotation positioning portion of the first positioning portion 30 , the rectangular second protrusion portion 8 c provided on the flat surface 8 a of the housing body 8 is inserted into the protective member 12 provided in the corresponding portion. The second notch portion 28 a of the third protrusion portion 28 of the bottom portion 17 . Thereby, the rotational positioning portion of the first positioning portion 30 determines the position in the rotational direction of the protective member 12 with the through hole 10 of the case body 8 as the center.

In addition, the third positioning portion 32 positions the bottom portion 17 of the protective member 12 with respect to the buffer member 26 by the third protrusion portion 28 provided on the bottom portion 17 of the protective member 12 . That is, in the third positioning portion 32 , the outer periphery of the third protrusion portion 28 provided on the bottom portion 17 of the protective member 12 corresponds to the inner periphery of the buffer member 26 , and the outer periphery of the third protrusion portion 28 is fitted into the buffer member 26 . week. Thereby, the third positioning portion 32 positions the bottom portion 17 of the protective member 12 with respect to the buffer member 26 .

When the protective member 12 is positioned on the flat surface 8a of the case main body 8 in this way, the through hole 10 of the case main body 8 and the shaft insertion hole 12a of the protective member 12 are aligned on the same axis and correspond to each other. The plurality of screw insertion holes 20 provided in the bottom portion 17 correspond to the plurality of screw holes 15 provided in the flat surface 8 a of the case body 8 . As a result, the protective member 12 can be attached to the flat surface 8 a of the case body 8 via the plurality of screw members 11 .

In this state, the respective screw portions 11 a of the plurality of screw members 11 are inserted into the plurality of screw insertion holes 20 provided in the bottom portion 17 of the protection member 12 from the housing recesses 18 of the protection member 12 , and the screw portions 11 a of the plurality of screw members 11 are inserted into the plurality of screw insertion holes 20 provided in the bottom portion 17 of the protection member 12 . The plurality of threaded holes 15 on the flat surface 8a are screwed together. In this state, when the screw heads 11b of the plurality of screw members 11 are fastened, the screw heads 11b are arranged in the countersunk parts 20a of the screw insertion holes 20, and the screw heads 11b do not move toward each other. The inside of the housing recess 18 of the protective member 12 protrudes.

Thereby, the protection member 12 is attached to the flat surface 8a of the case main body 8 via the buffer member 26 in a state where the buffer member 26 is sandwiched between the protection member 12 and the flat surface 8a of the case main body 8 . In this state, the spring member 14 is arranged in the housing recess 18 of the protective member 12 . Then, the operation shaft 22 of the operation member 13 is inserted into the spring member 14 from the outer side of the protection member 12 , and the inserted operation shaft 22 is inserted into the shaft insertion hole 12 a of the protection member 12 . The inserted operation shaft 22 is further inserted into the through hole 10 of the case body 8 , and the operation head 23 is pressed into the housing recess 18 of the protective member 12 .

At this time, the spring member 14 arranged in the housing recess 18 of the protective member 12 is elastically sandwiched between the operation head portion 23 and the bottom portion 17 of the protective member 12 . In this state, the operation head portion 23 is pushed in against the spring force of the spring member 14 , and the inner end portion of the operation shaft 22 is protruded into the case body 8 . In this state, the slip-off preventing member 24 is attached to the inner end portion of the operation shaft 22 protruding to the inside of the housing main body 8 .

Thereby, even if the operation head 23 is pushed out of the case body 8 by the elastic force of the spring member 14, the operation member 13 is not pushed out of the case body 8 by the contact of the anti-detachment member 24 with the inner peripheral surface of the case body 8. The outside of the 8 came off. In addition, at this time, the operation head 23 is arranged in the housing recess 18 and does not protrude from the housing recess 18 of the protective member 12 to the outside.

Then, the timepiece module 7 is incorporated into the case body 8 so that the switch element 25 provided in the timepiece module 7 and the inner end portion of the operation shaft 22 of the operation member 13 are brought into contact/separable correspondence. As a result, the switch device 4 is incorporated into the case body 8, and the switch device 4 is in a state where the switch operation can be performed.

In this case, the operation shaft 22 is formed in the shape of a round rod whose outer diameter is substantially the same as the inner diameter of the through hole 10 of the case body 8 . Therefore, in the case main body 8, the inner diameter of the through hole 10 can be formed to the minimum size in which the operation shaft 22 can be inserted, and the vertical length (thickness) of the case main body 8 can be formed to be short (thin) . In this case, since the outer diameter of the protective member 12 is larger than the vertical length of the case body 8, even if the vertical thickness of the case main body 8 is thin, the size of the protective member 12 is ensured to be large. .

Next, the case where such a switch device 4 is operated will be described.

In this switch device 4, in the normal state, the operating head 23 of the operating member 13 is pushed out of the case main body 8 by the elastic force of the spring member 14, and the disengagement preventing member 24 abuts against the inner peripheral surface of the case main body 8. catch.

In this state, the inner end portion of the operation shaft 22 of the operation member 13 is separated from the switch element 25 of the timepiece module 7, and the switch element 25 is in an off state. In addition, at this time, the operation head portion 23 is arranged in the housing recessed portion 18 of the protection member 12 and does not protrude from the housing recessed portion 18 to the outside.

When the switch device 4 is operated in this state, the operating head 23 disposed in the housing recess 18 of the protective member 12 is pressed in against the elastic force of the spring member 14 . Then, the operation shaft 22 slides in the shaft insertion hole 12 a of the protective member 12 and the through hole 10 of the case main body 8 , and the inner end of the operation shaft 22 is pushed out into the case main body 8 . The inner end portion of the pushed-out operation shaft 22 presses the switch element 25 of the timepiece module 7, so that the switch element 25 performs a switching operation.

In addition, in the case of the switch device 4 in the normal state, when the watch case 1 receives an impact from the outside, the impact can be blocked by the protective member 12 . That is, even if the protective member 12 is impacted, since the operating head portion 23 is arranged in the housing recess 18 of the protective member 12, the operating head portion 23 can be reliably and well protected from the impact. Therefore, since the operating head 23 is not pushed in by impact, the switching element 25 of the timepiece module 7 is not damaged by the operating shaft 22 of the operating member 13 .

In addition, when the protective member 12 receives an impact, the impact is buffered by the buffer member 26 provided between the case main body 8 and the protective member 12 , so that the impact on the protective member 12 is not transmitted to the case of the watch case 1 as it is. Subject 8. Therefore, since the casing main body 8 is not damaged by impact, impact resistance can be ensured.

In this case, since the operation head 23 is arranged and protected in the housing recess 18 of the protective member 12 , it is not necessary to provide a protection protrusion for protecting the operation head 23 in the watch case 1 . Therefore, the outer shape of the watch case 1 can be reduced, whereby the size of the watch case 1 can be reduced. In addition, since the appearance of the watch case 1 is not restricted by the protective protrusions, the degree of freedom in the design of the watch case 1 is improved, and the design property can be improved.

In addition, the buffer member 26 is formed in a ring shape, that is, a C-shaped shape with a part of which is cut out by the first notch portion 26a, the outer diameter of which is the same as or slightly smaller than the outer diameter of the protection member 12, so that the buffer member 26 can be well buffered and protected. Shock to component 12.

That is, when the buffer member 26 is disposed on the flat surface 8 a of the case body 8 , the portion protruding from the flat surface 8 a to the upper side of the case body 8 is cut off, so that even if the thickness of the case body 8 in the up-down direction is formed Even if it is thin, the buffer member 26 can be reliably arranged to correspond to the flat surface 8 a of the case main body 8 , and therefore, the shock received by the protection member 12 can be reliably and satisfactorily buffered.

In this case, as shown by the dotted line in FIG. 7 , if the buffer member 26 is formed large so that the edge of the first notch portion 26a expands the contact area with respect to the flat surface 8a of the case body 8, the Even if the first notch portion 26a is provided at a portion corresponding to the rectangular second protrusion portion 8c provided on the flat surface 8a, the shock received by the protective member 12 can be reliably and satisfactorily buffered.

In this way, according to the switch device 4 of the wristwatch, the case body 8 is provided with the through hole 10 , and the protective member 12 is attached to the outer surface of the case body 8 and is coaxial with the through hole 10 at the center portion. A shaft insertion hole 12a is correspondingly provided on the upper side, and a housing recess 18 is provided open to the outer side of the housing main body 8; And the operation head 23 provided at the outer end of the operation shaft 22 and slidably accommodated in the accommodation recess 18 of the protective member 12 can be thinned, impact resistance can be ensured, and designability can be improved.

That is, in the switch device 4 of the wristwatch, the inner diameter of the through hole 10 of the case body 8 can be formed to be small to the minimum size in which the operation shaft 22 of the operation member 13 can be inserted. The thickness in the up-down direction is formed to be thin, whereby the case body 8 can be thinned, and the watch as a whole can be thinned.

In addition, in this switch device 4 , since the operating head 23 is housed and protected in the housing recess 18 of the protective member 12 , it is not necessary to provide a protective projection for protecting the operating head 23 on the watch case 1 . Therefore, since the external shape of the watch case 1 can be reduced, the size of the watch case 1 can be reduced, and the watch case 1 is not restricted by the design due to the protective protrusions of the watch case 1, so the degree of freedom of design is improved, and the watch case 1 can be Improve design.

In this case, in this embodiment, even if the outer shape of the protective member 12 of the switch device 4 is formed in a circular shape, the designability can be improved. Shapes such as an oval can further improve designability.

Furthermore, in the switch device 4 of the wristwatch, the operation head 23 of the operation member 13 is slidably accommodated in the accommodation recess 18 of the protective member 12 attached to the outer surface of the case main body 8, so even if the wristwatch case 1 Even when an impact is received from the outside, the impact can be reliably blocked by the protective member 12 , whereby the operating head portion 23 arranged in the housing recess 18 of the protective member 12 can be reliably and favorably protected from the impact. twenty three.

Therefore, in the switch device 4, since the operation head 23 is not subjected to an impact from the outside of the watch case 1, the operation shaft 22 is not pressed into the inside of the case main body 8 due to the impact, and it can be reliably prevented from being installed in the case body 8. The timepiece module 7 in the case main body 8 , the switch element 25 , and the like are damaged by the operation shaft 22 , thereby ensuring shock resistance.

In addition, in the switch device 4 , the protective member 12 is attached to the case main body 8 via the plurality of screw members 11 , whereby the protective member 12 can be firmly attached to the outer surface of the case main body 8 . That is, the plurality of screw members 11 are screwed through the plurality of screw insertion holes 20 provided in the protective member 12 to the plurality of screw holes 15 provided in the case body 8, respectively, whereby the protective member 12 can be securely and firmly fixed. on the outer surface of the housing body 8 .

In this case, the screw member 11 includes a screw portion 11a and a screw head portion 11b, the screw portion 11a is screwed into the screw hole 15 of the case body 8, and the screw head portion 11b is arranged in the screw provided on the bottom portion 17 of the protective member 12 to be inserted. In the spot facing portion 20a of the hole 20, the screw head portion 11b does not protrude into the housing recessed portion 18 of the protective member 12, so that the screw head portion 11b does not interfere with the sliding movement of the operation head portion 23 arranged in the housing recessed portion 18. and rotating action.

In addition, in the switch device 4 , the buffer member 26 is arranged between the case body 8 and the protective member 12 , and thus when the protective member 12 receives an impact, the shock can be buffered by the buffer member 26 . As a result, the shock received by the protective member 12 can be prevented from being transmitted to the case body 8 of the watch case 1 as it is, so that the case body 8 can be reliably and satisfactorily prevented from being damaged by the shock, and the shock resistance can be further improved. .

In this case, the buffer member 26 is formed in an annular shape, that is, a C-shaped shape having an outer diameter that is the same as or slightly smaller than the outer diameter of the protective member 12 and is partially cut out by the first notch portion 26a. The outer diameter of the buffer member 26 is formed to be substantially the same size as the outer diameter of the protective member 12 , so that the shock received by the protective member 12 is well buffered.

That is, since the portion of the buffer member 26 protruding from the flat surface 8 a to the upper side of the case body 8 is cut off, when the buffer member 26 is disposed on the flat surface 8 a of the case body 8 , the buffer member 26 can be prevented from penetrating the surface of the case body 8 . By protruding upward, the thickness can also be reduced, and the shock received by the protective member 12 can be well buffered.

In this case, if the buffer member 26 is provided with the first notch portion 26a at a portion corresponding to the rectangular second protrusion portion 8c provided on the flat surface 8a, and the edge portion of the first notch portion 26a is enlarged to face each other By forming a larger contact area on the flat surface 8a, even if the first notch portion 26a is provided in the buffer member 26, the shock received by the protection member 12 can be reliably and satisfactorily buffered, thereby improving shock resistance.

In addition, the switch device 4 includes the first positioning portion 30 for positioning the case main body 8 and the protective member 12, whereby the axial center of the protective member 12 with respect to the flat surface 8a of the case main body 8 can be positioned, In addition, the position in the rotational direction of the protective member 12 with respect to the flat surface 8 a of the case body 8 can be determined.

That is, in this switch device 4 , the first positioning portion 30 includes: an axis positioning portion that positions the axis center of the protective member 12 with respect to the flat surface 8 a of the case body 8 , and a rotation positioning portion that determines relative to the case body 8 . The position in the rotational direction of the protective member 12 on the flat surface 8 a of the body main body 8 can thereby reliably and favorably locate the axial center and rotational direction position of the protective member 12 relative to the flat surface 8 a of the housing main body 8 .

In this case, the shaft positioning portion of the first positioning portion 30 is inserted into the circular first concave portion provided in the bottom portion 17 of the protective member 12 through the ring-shaped first protrusion portion 8 b provided on the flat surface 8 a of the casing body 8 27. The through hole 10 of the case main body 8 and the shaft insertion hole 12a of the protective member 12 can be correspondingly and accurately aligned on the same axis.

In addition, the rotation positioning portion of the first positioning portion 30 is inserted into the second notch of the third protrusion portion 28 provided on the bottom portion 17 of the protective member 12 through the rectangular second protrusion portion 8c provided on the flat surface 8a of the casing body 8 Between the parts 28a, the position of the protection member 12 in the rotational direction around the through hole 10 of the case body 8 can be determined reliably and accurately.

In addition, the switch device 4 includes the second positioning portion 31 for positioning the case main body 8 and the buffer member 26 , whereby the buffer member 26 can be accurately positioned on the flat surface 8 a of the case main body 8 . That is, in the second positioning portion 31, the buffer member is positioned in a state in which the first notch portion 26a of the buffer member 26 corresponds to the rectangular second protrusion portion 8c provided on the flat surface 8a of the case main body 8. The pair of pin protrusions 31 a of the case body 8 are inserted into the pair of pin holes 31 b provided on the flat surface 8 a of the case body 8 , whereby the buffer member 26 can be accurately positioned and attached to the flat surface 8 a of the case body 8 .

Furthermore, the switch device 4 includes the third positioning portion 32 for positioning the protective member 12 and the buffer member 26 , whereby the bottom portion 17 of the protective member 12 can be accurately positioned with respect to the buffer member 26 . That is, in this third positioning portion 32 , when positioning the bottom portion 17 of the protective member 12 with respect to the buffer member 26 , the outer periphery of the third protrusion portion 28 provided on the bottom portion 17 of the protective member 12 and the outer periphery of the buffer member 26 are aligned with each other. Corresponding to the inner circumference, the bottom portion 17 of the protective member 12 can be accurately positioned with respect to the buffer member 26 by fitting the outer circumference of the third protrusion portion 28 into the inner circumference of the buffer member 26 .

In this case, in the switch device 4, the third protrusion 28 provided on the bottom portion 17 of the protective member 12 is provided with the screw insertion hole 20 into which the screw portion 11a of the screw member 11 is inserted. Even if the spot facing portion 20a on which the screw head 11b of the screw member 11 is arranged is provided, the thickness of the bottom portion 17 in the axial direction can be formed to be substantially the same as the length of the screw head 11b in the axial direction.

Therefore, in the switch device 4, since the thickness of the bottom portion 17 of the protective member 12 in the axial direction can be reduced, the protruding length of the protective member 12 that protrudes to the outside of the case body 8 can be reduced, thereby reducing the overall size of the watch. The size of the radial direction can therefore realize the miniaturization of the watch.

In addition, in the above-mentioned embodiment, the switch device 4 provided on the 3 o'clock side of the watch case 1 has been described, but the present invention is not limited to this, and can be applied to the 2 o'clock side and the 4 o'clock side of the watch case 1. Push button switch 3 on the o'clock side, 8 o'clock side and 10 o'clock side.

In addition, in the above-mentioned embodiment, the case where it is applied to a wristwatch has been described, but the present invention does not have to be a wristwatch, and can be applied to various timepieces such as travel watches, alarm clocks, desk clocks, and wall clocks. In addition, the present invention does not necessarily need to be a timepiece, and can also be applied to electronic devices such as mobile phones and mobile terminals.

An embodiment of the present invention has been described above, but the present invention is not limited to this, and includes the scope of the utility model described in the claims and its equivalents.

Claims (10)

1. A switch device is characterized by comprising:

a housing provided with a through hole;

a protection member mounted on an outer surface of the housing, having an insertion hole at a center portion thereof corresponding to the through hole, and having a housing portion opened to an outer side of the housing; and

and an operation member including an operation shaft slidably inserted into the through hole of the housing and the insertion hole of the protection member, and an operation head provided at an outer end of the operation shaft and slidably received in the receiving portion of the protection member.

2. The switching device according to claim 1,

the protective member is attached to the outer surface of the housing by a plurality of screw members.

3. The switching device according to claim 1,

a buffer member is disposed between the housing and the protective member.

4. The switching device according to claim 3,

the buffer member is formed in a ring shape with a part thereof cut away.

5. The switching device according to claim 1,

the protection device is provided with a first positioning part for positioning the housing and the protection component.

6. The switching device according to claim 3,

the shock absorber further includes a second positioning portion for positioning the housing and the cushioning member.

7. The switching device according to claim 3,

and a third positioning portion for positioning the protection member and the cushioning member.

8. The switching device according to claim 1,

the housing is made of a polyamide resin containing carbon fibers or glass fibers.

9. The switching device according to claim 1,

the upper part of the outer diameter of the protection member protrudes upward from the upper part of the housing, and the lower part of the outer diameter protrudes downward from the lower part of the housing.

10. A timepiece, characterized in that it comprises, in a case,

a switch device according to any one of claims 1 to 9.

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