JP7020502B2 - Case and watch - Google Patents

Description

The present invention relates to a case used in an electronic device such as a wristwatch or a mobile communication device, and a timepiece including the case.

For example, in a wristwatch, as described in Patent Document 1, the inner side of a fixed pipe is fitted into a through hole of a wristwatch case, and a large-diameter protective pipe and a small-diameter stopper ring are provided on the outer side of the fixed pipe. A structure in which the shaft of the operating head of the operating member is inserted into the mounting and fixing pipe, and the outer head of the operating head is placed inside the large-diameter protective pipe so that it can be attached to and detached from the small-diameter stopper ring. Is known.

Japanese Unexamined Patent Publication No. 2000-329867

In this type of wristwatch, under normal conditions, the outer end of the outer head of the operating head protrudes from the large-diameter protective pipe, and the inner end of the outer head of the operating head separates from the small-diameter stopper ring. When the operating head is rotated in this state, the operating shaft of the operating member connected to the shaft of the operating head and inserted into the watch module in the wristwatch case rotates to adjust the time. There is.

In such a wristwatch, when the operating head receives an impact from the outside, the operating head comes into contact with the stopper ring to prevent the operating shaft from being pushed into the watch module, but the operating head becomes the stopper ring. When the wristwatch case is deformed by the impact at the time of contact, there is a problem that the operation shaft is pushed into the watch module and the watch module is damaged.

An object to be solved by the present invention is to provide a case and a timepiece including the case which can prevent the module from being damaged by an impact.

The present invention comprises a first member in which a module is housed and provided with a through hole, a second member fixed to the upper part of the first member and having a higher rigidity than the first member, and the first member. The second member includes an operation member having an operation shaft inserted into the through hole and projecting into the first member, and a part of the first member corresponding to the operation member comes into contact with the second member. This case is characterized by having an impact receiving part.

According to the present invention, damage to the module due to impact can be prevented.

It is a front view which showed one Embodiment of the wristwatch to which this invention was applied. FIG. 3 is an enlarged cross-sectional view taken along the line AA of the wristwatch shown in FIG. It is an exploded perspective view of the wristwatch shown in FIG. FIG. 3 is an enlarged perspective view showing a state in which a first exterior piece of a first exterior member is disassembled in the wristwatch shown in FIG. 1. In the wristwatch shown in FIG. 4, it is an enlarged perspective view seen from the lower surface side in a state where the second exterior member to which the second and third exterior pieces of the first exterior member are attached is attached to the upper case portion. FIG. 5 is an enlarged plan view showing a state in which the second and third exterior pieces of the first exterior member are attached to the second exterior member shown in FIG. FIG. 6 is an enlarged perspective view of the second exterior member and the second and third exterior pieces of the first exterior member shown in FIG. 6 as viewed from the lower surface side. FIG. 7 is an enlarged perspective view showing the second exterior member shown in FIG. 7 and the second and third exterior pieces of the first exterior member inverted. A cross section of the first exterior member attached to the second exterior member shown in FIG. 6 in the second exterior piece is shown, (a) is an enlarged cross-sectional view taken along the line BB, and (b) is the C-. It is an enlarged sectional view in C arrow view. It is an enlarged perspective view which was broken and shown in the DD arrow view of the wristwatch shown in FIG. FIG. 2 is an enlarged cross-sectional view taken along the line EE of the wristwatch shown in FIG. The cross section of the main part in the wristwatch shown in FIG. 1 is shown, (a) is an enlarged cross-sectional view in the FF arrow view, and (b) is an enlarged cross-sectional view in the GG arrow view. FIG. 3 is an enlarged cross-sectional view taken along the line HU of the wristwatch shown in FIG. It is an enlarged sectional view which showed the main part of the push button switch in the wristwatch shown in FIG. FIG. 2 is an enlarged cross-sectional view of a main part showing a state in which the operation head is unlocked by the lock part of the operation member in the switch device of the wristwatch shown in FIG. 2.

Hereinafter, an embodiment of a wristwatch to which the present invention is applied will be described with reference to FIGS. 1 to 15.
This wristwatch includes a wristwatch case 1 as shown in FIGS. 1 and 2. A band attachment portion 3 to which the watch band 2 is attached is provided on the 12 o'clock side and the 6 o'clock side of the wristwatch case 1. Further, a switch device 4 is provided on the 3 o'clock side of the wristwatch case 1, and a push button which is a switch device is provided on the 2 o'clock side, 4 o'clock side, 8 o'clock side, and 10 o'clock side of the wristwatch case 1. Each switch 5 is provided.

Further, as shown in FIGS. 1 and 2, a watch glass 6 is provided in the upper opening of the wristwatch case 1 via a packing 6a. Inside the wristwatch case 1, a watch module 7 is provided via a middle frame 8. The clock module 7 includes an upper housing 7a and a lower housing 7b. A circuit board 9 is provided between the upper housing 7a and the lower housing 7b.

As shown in FIG. 2, a dial 10 and a parting member 11 are provided on the upper portion of the upper housing 7a. The dial 10 is made of a light-transmitting material and is formed in a substantially disk shape, and a solar panel 10a is provided on the lower surface of the dial 10. The parting member 11 is formed in a ring shape, and hour letters 11a are provided on the inner peripheral surface at equal intervals. The parting member 11 is attached to the inner peripheral surface of the wristwatch case 1 in a state of being arranged on the outer peripheral portion on the upper surface of the dial 10.

Further, as shown in FIG. 2, a plurality of watch movements 12 are provided in the upper housing 7a, and a battery 13 is provided in the lower housing 7b. Each of these plurality of watch movements 12 is provided with a pointer shaft 12a projecting above the dial 10 and the solar panel 10a, and the pointer 12b provided at the upper end of the pointer shaft 12a is moved above the dial 10. It is configured to indicate and display information such as time and time.

By the way, as shown in FIGS. 1 to 4, the wristwatch case 1 includes a case main body 15 and an exterior member 16. The case body 15 includes a lower case 17 (first member) and an upper case 18 (second member). The lower case 17 includes a tubular side wall portion and a bottom portion, which are integrally formed of a reinforced plastic or a highly rigid synthetic resin such as a synthetic resin mixed with carbon fibers or glass fibers. In this case, the mounting protrusion 17a of the band mounting portion 3 is provided so as to project from the side wall portions of the lower case 17 on the 12 o'clock side and the 6 o'clock side.

As shown in FIGS. 2 and 3, a piezoelectric element 14 is provided at the bottom of the lower case 17. That is, the piezoelectric element 14 is provided on the diaphragm 14a, and the diaphragm 14a is attached to the bottom of the lower case 17 by the double-sided adhesive tape 14b. A clock module 7 is arranged in the lower case 17 via a middle frame 8. The upper case 18 is formed in a ring shape by a material having high rigidity, for example, a metal such as stainless steel, by the lower case 17.

That is, as shown in FIGS. 2 to 5, the upper case 18 hits the first ring portion 18a arranged on the upper end surface of the cylindrical side wall portion of the lower case 17 and the inner peripheral surface of the lower case 17. It includes a second ring portion 18b in contact with the first ring portion 18a, and a tubular portion 18c provided on the first ring portion 18a to which the watch glass 6 is attached via the packing 6a. In this case, the upper case 18 is attached to the upper part of the lower case 17 by a plurality of screws 18d via a waterproof ring 19 between the first ring portion 18a and the upper end surface of the lower case 17.

As shown in FIGS. 1 to 8, the exterior member 16 includes a first exterior member 20 and a second exterior member 21. The second exterior member 21 is arranged on the upper case 18 so as to cover the upper surface of the first ring portion 18a of the upper case 18 and the outer peripheral surface of the tubular portion 18c, and is decorative such as a titanium alloy or an aluminum alloy. It is formed in a substantially ring shape by the metal having. The first exterior member 20 is arranged from the upper surface of the second exterior member 21 to the outer periphery of the case main body 15, and is divided into a plurality of parts in the outer peripheral direction of the case main body 15.

That is, as shown in FIGS. 1 to 8, the first exterior member 20 is arranged on substantially half of one side of the outer circumference of the case body 15 from the 12 o'clock side to the 9 o'clock side to the 6 o'clock side. The piece 22, the second exterior piece 23 arranged to face the first exterior piece 22 in the band mounting portion 3 on the 6 o'clock side, and the band mounting portion 3 on the 12 o'clock side facing the first exterior piece 22. It includes a third exterior piece 24 to be arranged. Each of the first to third exterior pieces 22 to 24 is formed of a soft synthetic resin such as urethane resin.

As shown in FIGS. 3 to 5, the first exterior piece 22 corresponds to the exterior body portion 25 corresponding to the portion from the 8 o'clock side to the 10 o'clock side of the case body 15 and the 7 o'clock side of the case body 15. A first cover portion 26 and a second cover portion 27 corresponding to the 11 o'clock side of the case main body 15 are provided. Both sides of the exterior main body 25 are arranged from the inner peripheral edge of the second exterior member 21 through the upper surface of the second exterior member 21 and the side surface of the upper case 18 to the lower part of the side wall of the lower case 17.

As shown in FIGS. 3 to 5, button insertion holes 25a into which the head 43 of the push button switch 5 is inserted correspond to the 8 o'clock side and the 10 o'clock side of the case main body 15, respectively. It is provided. Further, as shown in FIGS. 4 and 12 (a), the first screw insertion hole 25b into which the first screw 28 is inserted corresponds to the 8 o'clock side and the 10 o'clock side in the upper part of the exterior main body portion 25, respectively. It is provided.

In this case, as shown in FIGS. 1, 4, and 12 (a), the first screw 28 is the first of the second exterior member 21 and the upper case 18 from the first screw insertion hole 25b of the exterior main body 25. The exterior main body portion 25 and the second exterior member 21 are screwed into the first screw hole 17d provided at the upper end portion of the side wall portion of the lower case 17 through each hole of the ring portion 18a, and the exterior main body portion 25 and the second exterior member 21 are screwed into the lower case 17 together with the upper case 18. It is configured to be installed.

Further, on the side portion of the exterior main body portion 25, as shown in FIGS. 2 and 3, a second screw insertion hole 25c into which the second screw 29 is inserted corresponds to the side surface of the case main body 15 on the 9 o'clock side. It is provided. The second screw 29 is screwed from the second screw insertion hole 25c of the outer body 25 into the second screw hole 17e provided on the side surface of the side wall of the lower case 17, so that the outer body 25 is placed in the lower case. It is configured to be attached to the side surface of 17.

As shown in FIGS. 3 to 5, the first cover portion 26 of the first exterior piece 22 is attached to the end portion of the case body 15 on the 7 o'clock side of the band mounting portion 3 on the 6 o'clock side of the wristwatch case 1. It is placed over the cover. As shown in FIG. 5, the first cover portion 26 is provided with a first screw mounting hole 26a and a first connecting hole 26b.

In this case, as shown in FIG. 10, the mounting protrusion 17a on the 6 o'clock side of the lower case 17 has a main body insertion hole 17b corresponding to the same axis as the first screw mounting hole 26a of the first cover portion 26. It is provided so as to penetrate from the 7 o'clock side to the 5 o'clock side in the outer peripheral direction of the lower case 17, that is, in the tangential direction with respect to the outer peripheral of the lower case 17. The screw body 31 of the mounting screw member 30 is inserted into the body insertion hole 17b. The mounting screw member 30 includes a screw main body 31 provided with female screw portions 31a at both ends, and two male screws 32 screwed to each female screw portion 31a of the screw main body 31.

As a result, as shown in FIG. 10, the first cover portion 26 is mounted with the first screw in a state where the screw main body 31 of the mounting screw member 30 is inserted into the main body insertion hole 17b of the mounting protrusion 17a of the lower case 17. The hole 26a corresponds to the main body insertion hole 17b of the mounting protrusion 17a on the same axis, and the male screw 32 is screwed into the female screw portion 31a of the screw main body 31 through the first screw mounting hole 26a, so that the lower case 17 has a hole 26a. It is configured to be mounted on the mounting protrusion 17a.

Further, as shown in FIGS. 10 and 11, the mounting protrusion 17a on the 6 o'clock side of the lower case 17 has a main body connecting hole 17c corresponding to the first connecting hole 26b of the first cover portion 26 on the same axis. The lower case 17 is provided so as to penetrate from the 7 o'clock side to the 5 o'clock side in the outer peripheral direction, that is, in the tangential direction with respect to the outer peripheral direction of the lower case 17. A pin member 33, which is a rod-shaped member, is inserted into the main body connecting hole 17c. The pin member 33 is formed to have an axial length longer than the axial length of the main body connecting hole 17c of the mounting protrusion 17a, and when inserted into the main body connecting hole 17c, it is formed on both sides of the mounting protrusion 17a. It is configured to protrude.

As a result, as shown in FIGS. 10 and 11, the pin member 33 is inserted into the main body connecting hole 17c of the mounting protrusion 17a and is projected to both sides of the mounting protrusion 17a, and the first cover portion 26 is projected. By inserting the pin member 33 corresponding to the first connecting hole 26b, the pin member 33 is connected and fixed to the end of the mounting protrusion 17a, and is configured to prevent turning over to the mounting protrusion 17a.

As shown in FIGS. 3 to 5, the second cover portion 27 of the first exterior piece 22 covers the end portion of the case body 15 on the 11 o'clock side of the band mounting portion 3 on the 12 o'clock side of the wristwatch case 1. Is placed. As shown in FIGS. 10 and 11, the second cover portion 27 is provided with a second screw mounting hole 27a and a second connecting hole 27b.

In the second cover portion 27, similarly to the first cover portion 26, the second screw mounting hole 27a is tangential to the mounting protrusion 17a of the lower case 17 in the outer peripheral direction of the lower case 17, that is, in the tangential direction with respect to the outer peripheral of the lower case 17. It is configured to correspond to the provided main body insertion hole 17b on the same axis. As a result, in the second cover portion 27, the male screw 32 is screwed into the female screw portion 31a of the screw main body 31 inserted into the main body insertion hole 17b of the lower case 17 through the second screw mounting hole 27a, whereby the lower case It is configured to be mounted on the mounting protrusion 17a of 17.

Further, the second cover portion 27 is provided in the main body connecting hole 17c provided in the mounting projection portion 17a in the outer peripheral direction of the lower case 17, that is, in the tangential direction with respect to the outer peripheral portion of the lower case 17, similarly to the first cover portion 26. The two connecting holes 27b are configured to correspond on the same axis. As a result, the second cover portion 27 is mounted by inserting the pin members 33 that are inserted into the main body connecting hole 17c of the mounting protrusion 17a and projecting from both sides of the mounting protrusion 17a into the second connecting hole 27b. It is connected and fixed to the end of the protrusion 17a so as to prevent turning over to the mounting protrusion 17a.

On the other hand, as shown in FIGS. 4 to 9, the second exterior piece 23 of the exterior member 16 is attached to a portion of the case body 15 on the 5 o'clock side. The second exterior piece 23 includes a second main body 34 arranged from the inner peripheral edge of the substantially ring-shaped second exterior member 21 through the upper surface of the second exterior member 21 to the outer peripheral surface of the upper case 18, and a wristwatch. It includes a third cover portion 35 arranged at the end portion of the case main body 15 on the 5 o'clock side in the band mounting portion 3 on the 6 o'clock side of the case 1.

As shown in FIGS. 6 to 9, the second exterior piece 23 has a second main body portion 34 attached to and temporarily fixed to a substantially ring-shaped second exterior member 21. In this case, at the location of the second exterior member 21 to which the second main body portion 34 is attached, a pair of biting grooves 21a that bite from the inner peripheral side toward the outer peripheral side and a locking groove 21b provided on the outer peripheral portion are provided. It is provided. The second main body 34 has a pair of mounting protrusions 34a that are inserted and attached to the pair of biting grooves 21a of the second exterior member 21, and an engaging protrusion 34b that engages with the locking groove 21b of the second exterior member 21. And are provided.

As a result, as shown in FIGS. 6 to 9, the second exterior piece 23 extends from the inner peripheral edge of the substantially ring-shaped second exterior member 21 to the outer peripheral surface of the upper case 18 through the upper surface of the second exterior member 21. The pair of mounting protrusions 34a of the second main body 34 is inserted into the pair of biting grooves 21a of the second exterior member 21, and the engaging protrusions 34b of the second main body 34 are inserted into the second exterior member. By engaging with the locking groove 21b of 21, it is configured to be attached to and temporarily fixed to the second exterior member 21.

Further, as shown in FIGS. 4 to 9, the third cover portion 35 of the second exterior piece 23 is 5 in the mounting protrusion 17a of the lower case 17 corresponding to the band mounting portion 3 on the 6 o'clock side of the wristwatch case 1. It is arranged so as to cover the side portion on the time side and is configured to face the first cover portion 26 of the first exterior piece 22. As shown in FIGS. 10 and 11, the third cover portion 35 is provided with a third screw mounting hole 35a and a third connecting hole 35b.

As shown in FIGS. 10 and 11, in the third cover portion 35, the third screw mounting hole 35a is tangential to the mounting protrusion 17a of the lower case 17 in the outer peripheral direction of the lower case 17, that is, in the tangential direction with respect to the outer periphery of the lower case 17. It is configured to correspond to the main body insertion hole 17b provided in the above on the same axis. Further, in the third cover portion 35, the male screw 32 is screwed into the female screw portion 31a of the screw main body 31 inserted into the main body insertion hole 17b of the lower case 17 through the third screw mounting hole 35a, whereby the lower case is formed. It is configured to be mounted on the mounting protrusion 17a of 17.

Further, as shown in FIGS. 10 and 11, the third cover portion 35 is provided in the main body connecting hole 17c provided in the mounting protrusion 17a in the outer peripheral direction of the lower case 17, that is, in the tangential direction with respect to the outer peripheral of the lower case 17. The third connecting hole 35b is configured to correspond on the same axis. As a result, the third cover portion 35 is inserted into the main body connecting hole 17c of the mounting protrusion 17a, and the pin members 33 protruding from both sides of the mounting protrusion 17a are inserted corresponding to the third connecting hole 35b. As a result, it is connected and fixed to the end of the mounting protrusion 17a so as to prevent the mounting protrusion 17a from being turned over.

Further, in the second exterior piece 23, as shown in FIGS. 5 to 7 and 12 (b), a third screw insertion hole 23a into which the third screw 36 is inserted is provided in the second main body portion 34 and the second main body portion 34. 3 It is provided at the boundary with the cover portion 35. As a result, the second exterior piece 23 is screwed into the third screw hole 17e provided at the upper end of the lower case 17 on the 5 o'clock side by inserting the third screw 36 into the third screw insertion hole 23a from above. By doing so, it is attached to the upper end portion of the lower case 17 on the 5 o'clock side.

On the other hand, as shown in FIGS. 4 to 9, the third exterior piece 24 of the exterior member 16 is attached to a portion of the case body 15 on the 1 o'clock side. Like the second exterior piece 23, the third exterior piece 24 is arranged from the inner peripheral edge of the substantially ring-shaped second exterior member 21 to the outer peripheral surface of the upper case 18 through the upper surface of the second exterior member 21. It includes a third main body portion 37 and a fourth cover portion 38 arranged at the 1 o'clock side end of the case main body 15 in the band mounting portion 3 on the 12 o'clock side of the wristwatch case 1.

As shown in FIGS. 6 to 9, the third exterior piece 24 has a third main body 37 attached to and temporarily fixed to a substantially ring-shaped second exterior member 21. In this case as well, the portion of the second exterior member 21 to which the third main body 37 is attached has a pair of biting grooves 21a that bite from the inner peripheral side toward the outer peripheral side and the outer peripheral portion, similarly to the second exterior piece 23. The locking groove 21b provided in the above is provided. Similar to the second exterior piece 23, the third main body 37 has a pair of mounting protrusions 37a that are inserted and mounted in the pair of biting grooves 21a of the second exterior member 21, and a locking groove 21b of the second exterior member 21. An engaging protrusion 37b that engages with the above is provided.

As a result, as shown in FIGS. 6 to 9, the third exterior piece 24 passes from the inner peripheral edge of the substantially ring-shaped second exterior member 21 to the upper surface of the second exterior member 21, similar to the second exterior piece 23. When arranged over the outer peripheral surface of the upper case 18, the pair of mounting protrusions 37a of the third main body 37 are inserted into the pair of biting grooves 21a of the second exterior member 21, and the third main body 37 is engaged. The joint protrusion 37b is configured to be attached to and temporarily fixed to the second exterior member 21 by engaging with the locking groove 21b of the second exterior member 21.

Further, as shown in FIGS. 4 to 9, the fourth cover portion 38 of the third exterior piece 24 is attached to the lower case 17 corresponding to the band attachment portion 3 on the 12 o'clock side of the wristwatch case 1. It is arranged so as to cover the side portion of the protrusion 17a on the 1 o'clock side and face the second cover portion 27 of the first exterior piece 22. As shown in FIGS. 10 and 11, the fourth cover portion 38 is provided with a fourth screw mounting hole 38a and a fourth connecting hole 38b.

Similar to the third cover portion 35 of the second exterior piece 23, the fourth cover portion 38 has a fourth screw mounting hole 38a in the mounting protrusion 17a of the lower case 17 in the outer peripheral direction of the lower case 17, that is, in the lower case 17. It is configured to correspond to the main body insertion hole 17b provided in the tangential direction with respect to the outer periphery on the same axis. As a result, the fourth cover portion 38 is lowered by screwing the male screw 32 into the female screw portion 31a of the screw main body 31 inserted into the main body insertion hole 17b of the mounting protrusion 17a through the fourth screw mounting hole 38a. It is configured to be mounted on the mounting protrusion 17a of the case 17.

Further, the fourth cover portion 38 is provided in the main body connecting hole 17c provided in the mounting projection portion 17a in the outer peripheral direction of the lower case 17, that is, in the tangential direction with respect to the outer peripheral portion of the lower case 17, similarly to the third cover portion 35. The four connecting holes 38b are configured to correspond on the same axis. As a result, the fourth cover portion 38 is mounted by inserting the pin members 33 that are inserted into the main body connecting hole 17c of the mounting protrusion 17a and projecting from both sides of the mounting protrusion 17a into the fourth connecting hole 38b. It is connected and fixed to the end of the protrusion 17a so as to prevent turning over to the mounting protrusion 17a.

Further, in the third exterior piece 24, like the second exterior piece 23, the fourth screw insertion hole 24a into which the third screw 36 is inserted is located at the boundary between the third main body portion 37 and the fourth cover portion 38. It is provided. As a result, the third exterior piece 24 is screwed into the third screw hole 17e provided at the upper end of the lower case 17 on the 1 o'clock side by inserting the third screw 36 into the fourth screw insertion hole 24a from above. By doing so, it is attached to the upper end portion of the lower case 17 on the 1 o'clock side.

By the way, as shown in FIGS. 1, 13 and 14, each of the plurality of push button switches 5 of the wristwatch case 1 has a different installation position and size, but all have substantially the same structure. That is, among these plurality of push button switches 5, for example, the push button switch 5 on the 1 o'clock side includes a first operation member 40 and a first spring member 41. The first operating member 40 has a metal shaft portion 42 that is slidably inserted into the first through hole 39 of the lower case 17, and a synthetic resin head portion provided at the outer end portion of the shaft portion 42. Although 43 is provided, the shaft portion 42 and the head portion 43 may be formed of metal.

In this case, as shown in FIG. 14, the first through hole 39 of the lower case 17 includes a small diameter hole portion 39a into which the shaft portion 42 is inserted and a large diameter hole portion 39b in which the head portion 43 is arranged. .. The shaft portion 42 is formed to be longer than the axial length of the small diameter hole portion 39a of the first through hole 39. As a result, when the shaft portion 42 is inserted into the small diameter hole portion 39a, the inner end portion protrudes inside the lower case 17, and the outer end portion protrudes into the large diameter hole portion 39b of the first through hole 39. It is configured to do.

As shown in FIG. 14, the shaft portion 42 has a first retaining member 47 such as an E-ring attached to an inner end portion protruding inside the lower case 17, and the first retaining member 47 is attached to the lower case 17. It is configured so as not to come out from the first through hole 39 to the outside of the lower case 17 by abutting on the inner peripheral surface of the above. The shaft portion 42 is configured such that when the head portion 43 is pushed in, the inner end portion presses the contact portion 7c of the clock module 7 to operate the switch. Further, a plurality of packing grooves 42a to which the first to third packings 44 to 46 are attached are provided on the outer peripheral surface of the shaft portion 42.

As shown in FIG. 14, the head 43 is formed so that its outer diameter is slightly smaller than the inner diameter of the large diameter hole portion 39b of the first through hole 39, and the inner end surface of the head 43 has a first surface. A recess 43a in which the spring member 41 is arranged is provided. The first spring member 41 is a coil spring. It is configured to urge the case 17 in a direction of pushing it toward the outside.

As a result, as shown in FIG. 14, the head 43 of the push button switch 5 is pushed out by the spring force of the first spring member 41, and the first retaining member 47 of the shaft portion 42 is placed on the inner peripheral surface of the lower case 17. When the inner end of the head 43 is placed in the large-diameter hole 39b of the first through hole 39 away from the stepped portion of the large-diameter hole 39b, the outside of the head 43 The end portion is configured to project outward from the large-diameter hole portion 39b of the first through hole 39.

Further, as shown in FIG. 14, in this push button switch 5, the head 43 is pushed against the spring force of the first spring member 41, and the inner end portion of the head 43 is a step of the large diameter hole portion 39b. When approaching or coming into contact with the portion, the first spring member 41 is compressed and arranged in the recess 43a of the head portion 43, and the first retaining member 47 of the shaft portion 42 separates from the inner peripheral surface of the lower case 17. The inner end of the protruding shaft portion 42 is configured to press the contact portion 7c of the watch module 7 to operate the switch.

Further, as shown in FIG. 14, the first to third packings 44 to 46 are attached to the shaft portion 42 of the push button switch 5. That is, these first to third packings 44 to 46 are arranged on the outer periphery of the shaft portion 42 at predetermined intervals from the outer end portion side to the inner end portion side in each packing groove 42a of the shaft portion 42. There is. Further, in these first to third packings 44 to 46, when the shaft portion 42 is inserted into the small diameter hole portion 39a of the first through hole 39, the outer peripheral portions of the first to third packings 44 to 46 are the first. 1 It is configured to slidably contact the inner peripheral surface of the small diameter hole portion 39a of the through hole 39.

In this case, the first packing 44 is made of a material having heat resistance and chemical resistance, for example, fluororubber. The second packing 45 is made of a material having wear resistance and durability, less permanent strain due to compression, and excellent slidability, for example, nitrile rubber. The third packing 46 is made of a material having heat resistance and weather resistance, for example, butyl rubber.

As a result, the push button switch 5 is made of nitrile rubber whose heat resistance and chemical resistance are ensured by the first packing 44 of the fluororubber, prevent the ingress of liquids such as water, oil and chemicals, and have less permanent distortion due to compression. The second packing 45 ensures wear resistance, durability, and slidability to prevent water from entering, and the third packing 46 of butyl rubber ensures heat resistance and weather resistance to prevent the ingress of gas such as water vapor. By preventing the watch glass 6 from fogging, it is configured to be waterproof to high pressure.

In this case, as shown in FIG. 14, the first to third packings 44 to 46 are the first packing 44, the first packing 44, from the outer end side to the inner end side of the shaft portion 42 of the first operation member 40. The two packings 45 and the third packing 46 are arranged in this order. Therefore, in this push button switch 5, first, the first packing 44 reliably prevents the ingress of liquids such as oil and chemicals, then the second packing 45 reliably prevents the ingress of water, and finally the third packing 46. This ensures that the infiltration of gas such as water vapor is prevented and the watch glass 6 is prevented from fogging, so that it is configured to be efficiently waterproofed to high pressure.

On the other hand, as shown in FIGS. 2 and 15, the switch device 4 on the 3 o'clock side of the wristwatch case 1 has a tubular member 50 fitted in the second through hole 48 of the lower case 17 and the inside of the tubular member 50. A second operation member 51 that is inserted into the lower case 17 and projects to the outside of the lower case 17 and a lock portion 52 that locks the second operation member 51 are provided.

As shown in FIGS. 2 and 15, the tubular member 50 is inserted into the small diameter tubular portion 50a to be inserted into the small diameter hole portion of the second through hole 48 of the lower case 17 and the medium diameter hole portion of the second through hole 48. A medium-diameter cylinder portion 50b to be inserted and a large-diameter cylinder portion 50c to be inserted into the large-diameter hole portion of the second through hole 48 are provided, and these are formed of a metal such as stainless steel. In this case, in the cylindrical member 50, the inner end portion of the small-diameter cylindrical portion 50a protrudes into the lower case 17, and the second retaining member 50d is attached to the protruding inner end portion.

Further, as shown in FIGS. 2 and 15, the tubular member 50 is provided with a plurality of waterproof packings 50e on the outer periphery of the medium-diameter tubular portion 50b. As a result, the tubular member 50 is in contact with the second through hole 48 of the lower case 17 because the plurality of waterproof packings 50e are in bullet contact with the inner peripheral surface of the medium diameter hole portion of the second through hole 48. It is waterproof.

As shown in FIGS. 2 and 15, the second operation member 51 includes an operation shaft 53 which is a winding core, an operation head 54 connected to an outer end portion of the operation shaft 53, and an operation shaft 53 and an operation head. It includes a connecting piece 55 for connecting the portions 54, and a second spring portion 56 for urging the operating head 54 toward the outside of the lower case 17. The operation shaft 53 has an inner end portion that is slidably inserted into the timepiece module 7, and an outer end portion that is slidably arranged in the tubular member 50.

As shown in FIGS. 2 and 15, the operation head 54 is provided at a cylindrical shaft 54a that is slidably inserted into the medium-diameter tubular portion 50b of the tubular member 50 and an outer end portion of the tubular shaft 54a. It has an outer head 54b and. A plurality of waterproof rings 54d are slidably contacted with the inner peripheral surface of the tubular member 50 on the outer periphery of the tubular shaft 54a. Further, a connecting piece 55 and a second spring member 56 are arranged in the tubular shaft 54a, and an outer end portion of the operating shaft 53 is inserted. In this case, the outer end of the operation shaft 53 is connected to the connecting piece 55.

As shown in FIGS. 2 and 15, the connecting piece 55 is slidably arranged in the tubular shaft 54a, and the operating head 54 is pushed out to the outside of the lower case 17 by the spring force of the second spring member 56. In the neutral state, it is configured so as to idle with respect to the operating head 54 and not transmit the rotation of the operating head 54 to the operating shaft 53.

Further, as shown in FIGS. 2 and 15, the connecting piece 55 moves even if the cylinder shaft 54a slides when the operating head 54 is further pulled out from the neutral state toward the outside of the lower case 17. It is configured to transmit the rotation of the operation head 54 to the operation shaft 53 by engaging with the cylinder shaft 54a in the cylinder shaft 54a while maintaining the stopped state without doing so.

As shown in FIGS. 2 and 15, the lock portion 52 is a screw lock mechanism, and the male screw 52a provided on the outer peripheral surface of the large-diameter tubular portion 50c of the tubular member 50 and the outer head of the operation head 54. It is provided with a female screw 52b provided on the inner peripheral surface of the recess 54c in the 54b. In this case, the recess 54c provided in the outer head 54b of the operation head 54 is formed so that the inner diameter thereof is about the same as the outer diameter of the large diameter tubular portion 50c of the tubular member 50.

As a result, as shown in FIGS. 2 and 15, the locking portion 52 puts the operating head 54 in the neutral state in which the connecting piece 55 idles inside the lower case 17 against the spring force of the second spring member 56. When the large-diameter tubular portion 50c of the tubular member 50 is pushed into the concave portion 54c of the outer head 54b of the operating head, the female screw 52b of the concave portion 54c is pushed into the concave portion 54c of the outer head portion 54b of the operating head when the large-diameter tubular portion 50c is rotated in one direction while being pushed toward the large-diameter tubular portion 50c. It is configured to be locked by being screwed into the male screw 52a of the above.

Further, as shown in FIGS. 2 and 15, the lock portion 52 has the operation head 54 in the direction opposite to one direction in a state where the male screw 52a of the large diameter tubular portion 50c and the female screw 52b of the recess 54c are screwed together. When rotated to, the male screw 52a of the large-diameter tubular portion 50c and the female screw 52b of the recess 54c are loosened, the lock by the male screw 52a and the female screw 52b is released, and the operation head 54 is the second spring member 56. It is configured to be in a neutral state by being pushed out toward the outside of the lower case 17 by a spring force.

As a result, as shown in FIGS. 2 and 15, in the switch device 4, the operation head 54 is unlocked by the lock portion 52, and the operation head 54 is moved by the spring force of the second spring member 56 to the lower case 17. Since the tubular shaft 54a of the operation head 54 and the connecting piece 55 are not engaged with each other in the neutral state extruded toward the outside of the operation head 54, even if the operation head 54 is rotated, the operation head 54 can be reached. On the other hand, the connecting piece 55 slips, the operation shaft 53 does not rotate, the clock movement 12 of the clock module 7 is not operated, and the time and the like are not corrected.

Further, as shown in FIGS. 2 and 15, in the switch device 4, the operation head 54 is unlocked by the lock portion 52, and the operation head 54 in the neutral state is further directed to the outside of the lower case 17. When the operation head 54 is pulled out, the tubular shaft 54a of the operation head 54 and the connecting piece 55 engage with each other. Therefore, the connecting piece 55 rotates with the rotation of the operation head 54, and the operation shaft 53 is placed in the clock module 7. It is configured to correct the time and the like by operating the clock movement 12 in the clock module 7 by rotating the clock.

By the way, as shown in FIGS. 2, 5, and 15, the upper case 18 is provided with an impact receiving portion 57 to which the inner peripheral portion, which is a part of the lower case 17 corresponding to the switch device 4, abuts. There is. That is, the impact receiving portion 57 protrudes from the lower surface of the first ring portion 18a of the upper case 18 corresponding to the second operating member 51 of the switch device 4 and from the outer peripheral surface of the second ring portion 18b of the upper case 18. It is configured to abut on the inner peripheral portion of the lower case 17 in the axial direction of the operation shaft 53.

In this case, as shown in FIGS. 2 and 15, the outer peripheral portion of the lower case 17 is provided so as to project outward from the outer peripheral surface of the upper case 18 and is fitted into the second through hole 48 of the lower case 17. The second operating member 51 is configured to be inserted into the shaped member 50. As a result, the switch device 4 is configured so that when the operating head 54 of the second operating member 51 receives an impact from the outside, the impact is received by the lower case 17 via the tubular member 50.

Therefore, in this switch device, as shown in FIGS. 2 and 15, even if the operation head 54 of the second operation member 51 receives an impact from the outside and the lower case 17 made of synthetic resin is deformed by the impact. The inner peripheral portion of the lower case 17 is pressed against the impact receiving portion 57 of the metal upper case 18, so that the impact is received by the impact receiving portion 57 from the outside.

As a result, as shown in FIGS. 2 and 15, the switch device 4 receives an impact from the outside by the impact receiving portion 57, so that the operating shaft 53 of the second operating member 51 is inside the watch module 7 due to the impact. The operation head 54 of the second operation member 51 is configured to be prevented from being damaged by the operation shaft 53 even if the operation head 54 of the second operation member 51 receives an impact from the outside.

In this case, as shown in FIG. 5, the upper case 18 is configured to be positioned on the lower case 17 by the positioning portion 58. That is, the positioning portion 58 includes a pair of notched portions 58a provided on the outer peripheral portions of the first ring portion 18a of the upper case 18 on the 12 o'clock side and the 6 o'clock side, respectively, and the upper end of the side wall portion of the lower case 17. It is provided with a pair of protrusions (not shown) that are provided on the portion and engage with a pair of notches 58a of the upper case 18.

As a result, as shown in FIGS. 2, 5, and 15, the upper case 18 is attached to the upper end portion of the lower case 17 when the first ring portion 18a is arranged at the upper end portion of the side wall portion of the lower case 17. By engaging the pair of protrusions (not shown) provided with the pair of notches 58a provided in the first ring portion 18a of the upper case 18, the position in the outer peripheral direction with respect to the lower case 17 is accurate. It is configured to be positioned. In this case, the upper case 18 is configured such that the impact receiving portion 57 of the upper case 18 is arranged corresponding to the switch device 4 by positioning the position with respect to the lower case 17 by the positioning portion 58. ..

Next, the operation of such a wristwatch will be described.
First, the case of assembling this wristwatch will be described. In this case, the piezoelectric element 14 is mounted in the lower case 17. At this time, the piezoelectric element 14 is mounted on the diaphragm 14a, and the diaphragm 14a is attached to the bottom of the lower case 17 with the double-sided adhesive tape 14b. In this state, the plurality of push button switches 5 and the switch device 4 are attached to the lower case 17.

That is, when the plurality of push button switches 5 are attached to the lower case 17, the first to third packings 44 to are previously provided in the plurality of packing grooves 42a provided on the outer periphery of each shaft portion 42 of each first operation member 40. Install each of 46. At this time, the first packing 44, the second packing 45, and the third packing 46 are attached in this order from the outer end side to the inner end side of the shaft portion 42. In this state, the first spring member 41 is arranged on the outer periphery of the shaft portion 42 of the first operation member 40, and the shaft portion 42 is inserted into the first through hole 39 of the lower case 17 from the outside.

Then, the first spring member 41 is arranged between the stepped portion of the large-diameter hole portion 39b of the first through hole 39 and the inner surface of the recess 43a in the head portion 43 of the first operating member 40. In this state, the head 43 is pushed so that the inner end portion of the shaft portion 42 protrudes into the lower case 17, and the first retaining member 47 is attached to the inner end portion of the protruding shaft portion 42. In this state, the head 43 is pushed out by the spring force of the first spring member 41, the first retaining member 47 of the shaft portion 42 abuts on the inner peripheral surface of the lower case 17, and the shaft portion 42 is in contact with the lower case 17. Never escape from the outside.

Further, at this time, the inner end portion of the head 43 of the push button switch 5 is arranged in the large diameter hole portion 39b of the first through hole 39 in a state of being separated from the step portion of the large diameter hole portion 39b, and the head 43 is provided. The outer end portion of the case is arranged so as to project from the inside of the large diameter hole portion 39b to the outside of the lower case 17. In this state, the outer peripheral portions of the first to third packings 44 to 46 slidably come into contact with the small diameter hole portion 39a of the first through hole 39.

In such a state, the first packing 44 of the fluororubber ensures heat resistance and chemical resistance to prevent the infiltration of liquids such as oil and chemicals, and the second packing 45 of the nitrile rubber has less permanent strain due to compression. Abrasion resistance, durability, and slidability are ensured to prevent the ingress of water, and the third packing 46 of butyl rubber ensures heat resistance and weather resistance to prevent the ingress of gas such as water vapor, and the watch glass 6 Can prevent cloudiness. Therefore, the push button switch 5 is water resistant to high pressure.

Further, in this case, the plurality of packings 44 to 46 are directed from the outer end side to the inner end side of the shaft portion 42 of the first operating member 40 toward the first packing 44, the second packing 45, and the third packing. The packings 46 are arranged in this order. In this state, the first packing 44 first reliably prevents the ingress of liquids such as oil and chemicals, then the second packing 45 reliably prevents the ingress of water, and finally the third packing 46 ensures that a gas such as water vapor enters. Prevents the infiltration of water vapor and prevents the watch glass 6 from fogging. This also ensures that the push button switch 5 is water resistant to high pressure. In this way, the plurality of push button switches 5 are attached to the 2 o'clock side, 4 o'clock side, 8 o'clock side, 10 o'clock side of the lower case 17, respectively.

On the other hand, when the switch device 4 is attached to the lower case 17, the tubular member 50 is first attached to the second through hole 48 of the lower case 17. At this time, a plurality of waterproof packings 50e are attached in advance to the outer peripheral surface of the medium-diameter tubular portion 50b of the tubular member 50. In this state, the tubular member 50 is fitted into the second through hole 48 of the lower case 17 together with the plurality of waterproof packings 50e. At this time, the small-diameter tubular portion 50a of the tubular member 50 is arranged in the small-diameter hole portion of the second through hole 48, the medium-diameter tubular portion 50b is arranged in the medium-diameter hole portion of the second through hole 48, and the large-diameter tubular portion is arranged. 50c is arranged in the large diameter hole portion of the second through hole 48.

In this state, a plurality of waterproof packings 50e are in bullet contact with the inner peripheral surface of the medium-diameter hole portion of the second through hole 48, and the waterproofing between the second through hole 48 of the lower case 17 and the tubular member 50 is shown. Be done. Further, at this time, the inner end portion of the small-diameter cylindrical portion 50a of the tubular member 50 protrudes into the lower case 17, and the second retaining member 50d is attached to the protruding inner end portion. As a result, the cylindrical member 50 is attached to the second through hole 48 without coming out of the second through hole 48.

In this state, the watch module 7 is incorporated into the lower case 17 from above. At this time, the clock module 7 is assembled in advance, the dial 10 is arranged on the upper portion of the clock module 7 together with the solar panel 10a, and the middle frame 8 is attached to the outer periphery of the clock module 7. In this state, the clock module 7 is arranged in the lower case 17 together with the middle frame 8, and the plurality of contact portions 7c of the clock module 7 correspond to the inner ends of the shaft portions 42 of the plurality of push button switches 5.

Then, the second operation member 51 of the switch device 4 is attached to the tubular member 50 attached to the lower case 17. At this time, the connecting piece 55 is connected in advance to the outer end of the operating shaft 53 of the second operating member 51. In this state, the second spring member 56 is inserted into the tubular shaft 54a provided on the operating head 54 of the second operating member 51, and the connecting piece 55 is inserted to insert the outer end portion of the operating shaft 53. ..

As a result, the operation shaft 53 is connected to the cylinder shaft 54a of the operation head 54 by the connecting piece 55. In this state, the operation shaft 53 is inserted into the tubular member 50 from the outside of the lower case 17 and inserted into the watch module 7 in the lower case 17. Then, the operation shaft 53 is operably connected to the clock movement 12 of the clock module 7. As a result, the switch device 4 is attached to the lower case 17.

After that, the metal upper case 18 is attached to the synthetic resin lower case 17, and the case body 15 is assembled. At this time, the waterproof ring 19 is arranged in advance at the upper end of the tubular side wall of the lower case 17. At this time, the parting member 11 is arranged in the tubular portion 18c of the upper case 18 in advance, and the watch glass 6 is attached together with the packing 6a. In this case, the watch glass 6 is fitted into the tubular portion 18c of the upper case 18 via the packing 6a, so that the watch glass 6 is protected by the upper case 18 having a higher rigidity than the lower case 17, and the upper case is also protected. The waterproofness of 18 is ensured.

In this state, when the upper case 18 is attached to the lower case 17, the first ring portion 18a of the upper case 18 is arranged at the upper end of the tubular side wall portion of the lower case 17, and the second ring portion 18a of the upper case 18 is arranged. The ring portion 18b is arranged so as to correspond to the inner surface of the side wall portion of the lower case 17. At this time, the upper case 18 and the lower case 17 are accurately positioned by the positioning portion 58. Therefore, the impact receiving portion 57 provided on the second ring portion 18b is accurately arranged corresponding to the switch device 4 attached to the lower case 17.

Then, the first ring portion 18a of the upper case 18 is attached to the upper end portion of the tubular side wall portion of the lower case 17 by a plurality of screws 18d. In this case, even if the lower case 17 is made of synthetic resin, the strength of the entire case body 15 is ensured by the upper case 18. That is, even if the lower case 17 has a tubular side wall portion and a bottom portion, the opening of the tubular side wall portion of the lower case 17 is reinforced by the metal upper case 18, so that the case body 15 The overall rigidity is increased.

Further, at this time, since the lower case 17 is made of synthetic resin, the manufacturing work is simpler, the manufacturing cost is lowered, and the price can be reduced as compared with the case where the lower case 17 is made of metal. In this case, the waterproof ring 19 is sandwiched between the first ring portion 18a of the upper case 18 and the upper end portion of the side wall portion of the lower case 17, and the upper case 18 is attached to the lower case 17. Therefore, the waterproof ring 19 makes the case body 15 waterproof. As a result, the case body 15 is assembled.

In this state, the exterior member 16 is attached to the case body 15. At this time, the exterior member 16 is assembled in advance. That is, the second exterior piece 23 and the third exterior piece 24 of the first exterior member 20 are attached to the second exterior member 21. In this case, when the second exterior piece 23 is attached to the second exterior member 21, it extends from the inner peripheral edge of the substantially ring-shaped second exterior member 21 to the outer peripheral surface of the upper case 18 through the upper surface of the second exterior member 21. The second exterior piece 23 is arranged.

At this time, the pair of mounting protrusions 34a provided on the second main body portion 34 of the second exterior piece 23 are inserted into the pair of biting grooves 21a of the second exterior member 21, and the engaging protrusions 34b of the second main body portion 34 are inserted. Is engaged with the locking groove 21b of the second exterior member 21. As a result, the second exterior piece 23 is attached to the second exterior member 21 and temporarily fixed.

Similarly, when the third exterior piece 24 is attached to the second exterior member 21, it extends from the inner peripheral edge of the substantially ring-shaped second exterior member 21 to the outer peripheral surface of the upper case 18 through the upper surface of the second exterior member 21. The third exterior piece 24 is arranged. Also at this time, the pair of mounting protrusions 37a provided on the third main body portion 37 of the third exterior piece 24 is inserted into the pair of biting grooves 21a of the second exterior member 21, and the third main body portion 37 is engaged. The protrusion 37b is engaged with the locking groove 21b of the second exterior member 21. As a result, the third exterior piece 24 is attached to the second exterior member 21 and temporarily fixed.

Then, the second exterior member 21 to which the second exterior piece 23 and the third exterior piece 24 are attached is attached to the upper case 18 and attached to the lower case 17. That is, when the second exterior member 21 is mounted on the upper case 18, the second exterior member 21 covers the upper surface of the first ring portion 18a of the upper case 18 and the outer peripheral surface of the cylindrical portion 18c. 2 The exterior member 21 is arranged in the upper case 18.

At this time, the third cover portion 35 of the second exterior piece 23 attached to the second exterior member 21 corresponds to the side portion of the mounting protrusion 17a provided on the 6 o'clock side of the lower case 17 on the 5 o'clock side. , Covers the side portion of the mounting protrusion 17a on the 5 o'clock side. Similarly, the fourth cover portion 38 of the third exterior piece 24 attached to the second exterior member 21 corresponds to the side portion on the 1 o'clock side of the mounting protrusion 17a provided on the 12 o'clock side of the lower case 17. , Covers the 1 o'clock side of this mounting protrusion 17a.

At this time, the third screw mounting hole 35a provided in the third cover portion 35 of the second exterior piece 23 is tangential to the outer peripheral portion of the lower case 17 in the mounting protrusion 17a provided on the 6 o'clock side of the lower case 17. Corresponds to the main body insertion hole 17b provided in the same axis. At the same time, the third connecting hole 35b provided in the third cover portion 35 corresponds to the main body connecting hole 17c provided in the tangential direction with respect to the outer periphery of the lower case 17 on the mounting protrusion 17a on the 6 o'clock side on the same axis. do. Further, at this time, the third screw insertion hole 23a provided at the boundary between the second main body portion 34 and the third cover portion 35 is provided at the upper end portion of the lower case 17 on the 5 o'clock side. Corresponds to the screw hole 17e.

Similarly, the fourth screw mounting hole 38a provided in the fourth cover portion 38 of the third exterior piece 24 is tangential to the outer peripheral portion of the lower case 17 in the mounting protrusion 17a provided on the 12 o'clock side of the lower case 17. Corresponds to the main body insertion hole 17b provided in the same axis. At the same time, the fourth connecting hole 38b provided in the fourth cover portion 38 corresponds to the main body connecting hole 17c of the mounting protrusion 17a on the 12 o'clock side on the same axis. Further, at this time, the fourth screw insertion hole 24a provided at the boundary between the third main body portion 37 and the fourth cover portion 38 is provided at the upper end portion on the 1 o'clock side of the lower case 17. Corresponds to the screw hole 17e.

In this case, pin members are previously provided in the main body connecting holes 17c provided in the tangential direction with respect to the outer periphery of the lower case 17 in the mounting protrusions 17a provided on the 6 o'clock side and the 12 o'clock side of the lower case 17, respectively. 33 is inserted so that each pin member 33 protrudes from both sides of each main body connecting hole 17c. As a result, when the third connecting hole 35b of the third cover portion 35 of the second exterior piece 23 corresponds to the main body connecting hole 17c of the mounting protrusion 17a on the 6 o'clock side, the pins protruding from both ends of the main body connecting hole 17c. The member 33 is inserted into the third connecting hole 35b of the third cover portion 35.

Similarly, when the fourth connecting hole 38b of the fourth cover portion 38 of the third exterior piece 24 corresponds to the main body connecting hole 17c provided in the mounting protrusion 17a on the 12 o'clock side in the tangential direction with respect to the outer periphery of the lower case 17. The pin members 33 protruding from both ends of the main body connecting hole 17c are inserted into the fourth connecting hole 38b of the fourth cover portion 38. In this way, when each pin member 33 is inserted into the third connecting hole 35b of the third cover portion 35 and the fourth connecting hole 38b of the fourth cover portion 38, the second exterior member 21 lowers the upper case 18. Press it onto the case 17.

In this state, the third screw 36 is inserted into the third screw insertion hole 23a of the second exterior piece 23 from above and screwed into the third screw hole 17e provided at the upper end of the lower case 17 on the 5 o'clock side. Tighten. As a result, the second exterior piece 23 presses the second exterior member 21 and the upper case 18 and is attached to the lower case 17. Similarly, the third screw 36 is inserted into the fourth screw insertion hole 24a of the third exterior piece 24 from above and screwed into the third screw hole 17e provided at the upper end of the lower case 17 on the 1 o'clock side. tighten. As a result, the third exterior piece 24 is attached to the lower case 17 by pressing the second exterior member 21 and the upper case 18.

Then, the first exterior piece 22 of the first exterior member 20 is attached to the side surface of the case body 15 from the 12 o'clock side to the 9 o'clock side and extending to the 6 o'clock side. At this time, the exterior body portion 25 of the first exterior piece 22 is made to correspond to the side surface of the case body 15 from the 8 o'clock side to the 10 o'clock side. At the same time, the first cover portion 26 of the first exterior piece 22 is made to correspond to the end portion of the mounting protrusion 17a provided on the 6 o'clock side of the lower case 17 on the 7 o'clock side, and the first exterior piece 22 is the first. 2 The cover portion 27 is made to correspond to the end portion on the 11 o'clock side of the mounting protrusion 17a provided on the 12 o'clock side of the lower case 17.

At this time, the head 43 of each push button switch 5 provided on the 8 o'clock side and the 10 o'clock side of the case main body 15 is inserted into each button insertion hole 25a provided in the outer main body portion 25 of the first exterior piece 22. The second screw insertion hole 25c provided in the exterior main body portion 25 corresponds to the second screw hole 17c provided in the side wall portion of the lower case 17. Further, at this time, each first screw insertion hole 25b provided in the upper part of the exterior main body portion 25 is provided in the upper end portion of the lower case 17 through each hole of the second exterior member 21 and the first ring portion 18a of the upper case 18. Corresponds to the first screw hole 17d that has been made.

Further, at this time, the first cover portion 26 of the first exterior piece 22 is arranged so as to cover the end portion of the mounting protrusion 17a provided on the 6 o'clock side of the lower case 17 on the 7 o'clock side, and the mounting protrusions are arranged. It faces the third cover portion 35 of the second exterior piece 23 with the portion 17a interposed therebetween. In this state, the first screw mounting hole 26a of the first cover portion 26 corresponds to the main body insertion hole 17b of the mounting protrusion 17a on the same axis.

Further, at this time, the first connecting hole 26b of the first cover portion 26 corresponds to the main body connecting hole 17c of the mounting protrusion portion 17a on the same axis. Then, the pin members 33 that are inserted into the main body connecting hole 17c of the mounting protrusion 17a and project on both sides of the main body connecting hole 17c are inserted into the first connecting hole 26b of the first cover portion 26. As a result, the first cover portion 26 is connected and fixed to the mounting protrusion 17a, and the first cover portion 26 can be prevented from being turned over with respect to the mounting protrusion 17a.

Similarly, the second cover portion 27 of the first exterior piece 22 is arranged so as to cover the end portion of the mounting protrusion 17a provided on the 12 o'clock side of the lower case 17 on the 11 o'clock side, and the mounting protrusion 17a is arranged. Facing the fourth cover portion 38 of the third exterior piece 24 with the In this state, the second screw mounting hole 27a of the second cover portion 27 corresponds to the main body insertion hole 17b of the mounting protrusion 17a on the same axis.

Further, at this time, the second connecting hole 27b of the second cover portion 27 corresponds to the main body connecting hole 17c of the mounting protrusion portion 17a on the same axis. Then, the pin members 33 that are inserted into the main body connecting hole 17c of the mounting protrusion 17a and project on both sides of the main body connecting hole 17c are inserted into the second connecting hole 27b of the second cover portion 27. As a result, the second cover portion 27 is connected and fixed to the mounting protrusion 17a, and the second cover portion 27 can be prevented from being turned over with respect to the mounting protrusion 17a.

In this state, the first exterior member 20 is screwed to the case body 15. At this time, the first screw 28 is inserted into each of the first screw insertion holes 25b provided in the upper part of the exterior main body portion 25 of the first exterior piece 22 from above, and each first screw 28 is inserted into the second exterior member 21. And the first ring portion 18a of the upper case 18 is screwed into each first screw hole 17d drilled in the upper end portion of the lower case 17 and tightened. As a result, the exterior main body 25 is attached to the lower case 17 by pressing the second exterior member 21 and the upper case 18.

Further, in this state, the second screw 29 is inserted from the outside side into the second screw insertion hole 25c provided on the side portion of the exterior main body portion 25, and the second screw 29 is provided on the side wall portion of the lower case 17. It is screwed into the second screw hole 17c and tightened. As a result, the exterior body portion 25 of the first exterior piece 22 is attached to the lower case 17.

Further, in this state, the screw main body 31 of the mounting screw member 30 is provided from the first screw mounting hole 26a provided in the first cover portion 26 of the first exterior piece 22 to the mounting protrusion 17a of the lower case 17. It is inserted into the insertion hole 17b. Then, the male screw 32 of the mounting screw member 30 is inserted into the first screw mounting hole 26a of the first cover portion 26, and the screw is screwed into the female screw portion 31a of the screw main body 31 inserted into the main body insertion hole 17b of the mounting protrusion 17a. Align and tighten.

At this time, the male screw 32 of the mounting screw member 30 is inserted into the third screw mounting hole 35a of the third cover portion 35 of the second exterior piece 23 facing the first cover portion 26 of the first exterior piece 22, and the mounting protrusion is formed. It is screwed into the female screw portion 31a of the screw main body 31 inserted into the main body insertion hole 17b of the portion 17a and tightened. As a result, the first cover portion 26 of the first exterior piece 22 and the third cover portion 35 of the second exterior piece 23 are attached to both ends of the mounting protrusions 17a of the lower case 17.

Similarly, the screw main body 31 of the mounting screw member 30 is inserted into the main body insertion hole 17b provided in the mounting protrusion 17a of the lower case 17 from the second screw mounting hole 27a provided in the second cover portion 27 of the first exterior piece 22. Insert it inside. Then, the male screw 32 of the mounting screw member 30 is inserted into the second screw mounting hole 27a of the second cover portion 27, and the screw is screwed into the female screw portion 31a of the screw main body 31 inserted into the main body insertion hole 17b of the mounting protrusion 17a. Align and tighten.

At this time, the male screw 32 of the mounting screw member 30 is inserted into the fourth screw mounting hole 38a of the fourth cover portion 38 of the third exterior piece 24 facing the second cover portion 27, and the main body insertion hole of the mounting protrusion 17a is inserted. It is screwed into the female screw portion 31a of the screw body 31 inserted in 17b and tightened. As a result, the second cover portion 27 of the first exterior piece 22 and the fourth cover portion 38 of the third exterior piece 24 are attached to both ends of the attachment protrusion 17a.

As a result, the wristwatch is assembled. In this case, in the wristwatch case 1 of the wristwatch assembled in this way, the exterior member 16 and the case body 15 are connected and fixed by the pin member 33, so that the exterior member 16 and the case body 15 are screwed together. In comparison, the size can be reduced, and the disassembly work is easier, and the reassembly and maintenance are easier than when the exterior member 16 and the case body 15 are fixed with an adhesive or double-sided adhesive tape.

Next, a case where this wristwatch is used will be described.
In this wristwatch, under normal conditions, each of the plurality of watch movements 12 of the watch module 7 moves the pointer 12b above the dial 10 to indicate and display information such as time, and the time and the like indicated by this instruction are displayed. Information is viewed from the outside through the watch glass 6.

In this state, if a plurality of push button switches 5 are pressed, the clock mode is switched. That is, when the head 43 of the first operating member 40 is pressed against the spring force of the first spring member 41, the shaft portion 42 slides and is pushed into the small diameter hole portion 39a of the first through hole 39. Is done. Then, the inner end portion of the shaft portion 42 is pushed into the lower case 17 and presses the contact portion 7c of the clock module 7 to operate the switch.

As described above, when the head portion 43 of the first operation member 40 is pushed and the shaft portion 42 slides in the small diameter hole portion 39a of the first through hole 39, the first one provided on the outer periphery of the shaft portion 42. The outer peripheral portions of the third packings 44 to 46 slide in contact with the inner peripheral surface of the small diameter hole portion 39a of the first through hole 39. Therefore, the first to third packings 44 to 46 provide high pressure waterproofing between the shaft portion 42 of the first operating member 40 and the small diameter hole portion 39a of the first through hole 39.

That is, in this push button switch 5, heat resistance and chemical resistance are ensured by the first packing 44 of the fluororubber, the infiltration of liquids such as oil and chemicals is prevented, and the second packing of the nitrile rubber having less permanent strain due to compression. The packing 45 ensures wear resistance, durability, and slidability to prevent the ingress of water, and the third packing 46 of butyl rubber ensures heat resistance and weather resistance to prevent the ingress of gases such as water vapor. By preventing the clock glass 6 from fogging, high pressure waterproofing can be achieved.

In this case, the plurality of packings 44 to 46 are in the order of the first packing 44, the second packing 45, and the third packing 46 from the outer end side to the inner end side of the shaft portion 42 of the first operating member 40. It is arranged in. Therefore, in the push button switch 5, the first packing 44 reliably prevents the ingress of liquids such as oil and chemicals, then the second packing 45 reliably prevents the ingress of water, and finally the third packing 46. This prevents the infiltration of gas such as water vapor and prevents the clock glass 6 from fogging. As a result, the high pressure waterproofing of the push button switch 5 can be efficiently, reliably and satisfactorily achieved.

On the other hand, when the switch device 4 is operated to correct the time or the like, first, the lock portion 52 unlocks the second operation member 51. That is, when the operating head 54 is rotated and the female screw 52b is separated from the male screw 52a in the locked state in which the male screw 52a of the tubular member 50 and the female screw 52b of the operating head 54 are screwed together, the male screw 52a and the female screw 52b are separated. The lock is released by.

Then, the operation head 54 is pushed out toward the outside of the lower case 17 by the spring force of the second spring member 56, and is in a neutral state. At this time, even if the tubular shaft 54a of the operating head 54 slides, the connecting piece 55 does not move and maintains a stopped state, so that the connecting piece 55 slips with respect to the operating head 54. The rotation of the operation head 54 is not transmitted to the operation shaft 53. Therefore, in this neutral state, the time and the like are not corrected.

In this neutral state, the operation head 54 is further pulled out toward the outside of the lower case 17. Then, the cylinder shaft 54a slides, the connecting pieces 55 engage with each other in the cylinder shaft 54a, and the connecting pieces 55 rotate with the rotation of the operation head 54. When the operation head 54 is rotated in this state, the operation shaft 53 is rotated by the connecting piece 55 to operate the clock movement 12 in the clock module 7. As a result, the time and the like are corrected.

Further, in this switch device 4, when the operation head 54 is pushed in and the operation head 54 is locked to the tubular member 50 by the lock portion 52 and the operation head 54 receives an impact from the outside, the cylinder The lower case 17 receives an impact via the shaped member 50, and the inner peripheral portion of the lower case 17 is pressed against the impact receiving portion 57 provided on the metal upper case 18.

Therefore, even if the operating head 54 receives an impact from the outside, the impact is received by the impact receiving portion 57. As a result, the operation shaft 53 of the second operation member 51 is not pushed into the watch module 7 by an impact, so that even if the operation head 54 of the second operation member 51 receives an impact from the outside, the operation shaft 53 will be used. Damage to the clock module 7 can be prevented.

In this case, the impact receiving portion 57 is provided on the lower surface of the upper case 18 corresponding to the second operating member 51, and is operated by being in contact with the inner peripheral portion of the lower case 17 in the axial direction of the operating shaft 53. Due to the impact received by the head 54, the axial deformation of the operation shaft 53 in the lower case 17, which has lower rigidity than the upper case 18, is suppressed. Therefore, the operation shaft 53 is not pushed into the watch module 7 by the impact.

Further, the outer peripheral surface of the lower case 17 is provided so as to project outward from the outer peripheral surface of the upper case 18, and when the operation head 54 is impacted, the lower case 17 is impacted and the lower case 17 is subjected to the impact. The received impact is reliably and satisfactorily received by the impact receiving portion 57 of the upper case 18.

Further, in this case, the lower case 17 is the upper case because the cylindrical member 50 into which the operation shaft 53 of the second operation member 51 is slidably inserted is arranged in the second through hole 48 of the lower case 17. The second operating member 51 is reliably and well held by the tubular member 50 even if it is lower than the rigidity of 18. Therefore, the operability of the second operating member 51 is ensured.

As described above, according to the wristwatch case 1, the lower case 17, which is the first member in which the watch module 7 is housed and the second through hole 48 is provided, and the lower case 17 are fixed to the upper part of the lower case 17. A second operating member having an upper case 18 which is a second member having higher rigidity than the lower case 17, and an operating shaft 53 which is inserted into the second through hole 48 of the lower case 17 and protrudes into the lower case 17. 51, and the upper case 18 is provided with an impact receiving portion 57 to which a part of the lower case 17 corresponding to the second operating member 51 abuts, thereby preventing damage to the watch module 7 due to an impact. Can be done.

That is, in this wristwatch case 1, when the operating head 54 receives an impact from the outside, the impact can be received by the impact receiving portion 57 provided in the upper case 18 having higher rigidity than the lower case 17. The impact received by the operating head 54 can suppress the deformation of the lower case 17, which is less rigid than the upper case 18, whereby the operating shaft 53 protruding into the lower case 17 is moved into the lower case 17 by the impact. Since it can be prevented from being pushed in, it is possible to prevent the watch module 7 from being damaged by an impact.

In this case, in the wristwatch case 1, the impact receiving portion 57 is provided on the lower surface of the upper case 18 corresponding to the second operating member 51, and abuts on the inner peripheral portion of the lower case 17 in the axial direction of the operating shaft 53. As a result, it is possible to reliably and satisfactorily suppress the deformation of the operating shaft 53 in the lower case 17, which has lower rigidity than the upper case 18, due to the impact received by the operating head 54.

Further, in the wristwatch case 1, the outer peripheral surface of the lower case 17 is provided so as to project outward from the outer peripheral surface of the upper case 18, and is provided in the tubular member 50 fitted in the second through hole 48 of the lower case 17. 2 When the operating head 54 receives an impact due to the insertion of the operating member 51, the impact received by the lower case 17 via the tubular member 50 is reliably received by the impact receiving portion 57 of the upper case 18. It can be taken well.

Further, in the wristwatch case 1, the lower case 17 is raised by arranging the cylindrical member 50 into which the operation shaft 53 of the second operation member 51 is slidably inserted in the second through hole 48 of the lower case 17. Even if the rigidity is lower than that of the case 18, the cylindrical member 50 can reliably and satisfactorily hold the second operating member 51, whereby the operability of the second operating member 51 can be improved.

Further, in the wristwatch case 1, since the watch glass 6 which is a protective glass is fitted in the upper case 18, the watch glass 6 is surely put into the upper case 18 which is more rigid than the lower case 17 via the packing 6a. Moreover, the watch glass 6 can be fitted well, whereby the watch glass 6 can be securely and well attached to the upper case 18, so that the watch glass 6 can be well protected by the upper case 18 and the upper case 18 can be well protected. The waterproofness of the watch can be ensured.

Further, in the wristwatch case 1, the positions of the lower case 17 and the upper case 18 in the outer peripheral direction are regulated by the positioning portion 58, so that when the upper case 18 is attached to the lower case 17, the positioning portion 58 lowers the case. Since the case 17 and the upper case 18 can be accurately positioned so that the impact receiving portion 57 of the upper case 18 can be accurately arranged corresponding to the second operation member 51, the lower case 17 can be positioned. On the other hand, the upper case 18 can be attached accurately and reliably.

In the above-described embodiment, the case where the main body connecting hole 17c is linearly penetrated through the mounting protrusions 17a on the 6 o'clock side and the 12 o'clock side of the lower case 17 in the tangential direction with respect to the outer periphery of the case main body 15 will be described. However, the present invention is not limited to this, and for example, the main body connecting hole 17c may be curved and penetrated along the outer periphery of the case main body 15 in the mounting protrusion 17a. In this case, the pin member 33 may be curved with the same curvature as the curvature of the main body connecting hole 17c, and the first to fourth cover portions of the first to third exterior pieces 22 to 24 may be curved. The connecting holes 26b, 27b, 35b, and 38b may be similarly curved.

Further, in the above-described embodiment, the mounting protrusions 17a of the band mounting portion 3 are provided on the 6 o'clock side and the 12 o'clock side of the lower case 17, and the main body connecting holes 17c are provided in the mounting protrusions 17a with respect to the outer periphery of the case main body 15. The case where the pin member 33 is inserted into the main body connecting hole 17c to be provided so as to penetrate in the tangential direction and is projected on both sides of the mounting protrusion 17a has been described, but the present invention is not limited to this, and for example, each mounting protrusion is described. Main body connecting holes are provided on both sides of the main body connecting holes 17a in a non-penetrating state, and the first to third exterior pieces 22 to 24 are attached to the mounting protrusions 17a of the lower case 17 by the pin members inserted into the main body connecting holes. It may be individually connected to.

That is, in this modification, main body connecting holes are provided on both sides of the mounting protrusion 17a, and pin members are provided so as to protrude from each of the main body connecting holes, and these protruding pin members are the first of the first exterior member 20. The first and second cover portions 26 and 27 of the exterior piece 22 are individually inserted into the first connecting holes 26b and 27b to be connected and fixed, and the third cover portion 35 of the second exterior piece 23 is connected to the third. The holes 35b and the fourth connecting hole 38b of the fourth cover portion 38 of the third exterior piece 24 may be individually inserted to be connected and fixed.

Further, in the above-described embodiment, the case where the first to third packings 44 to 46 are provided on the outer periphery of the shaft portion 42 in the first operating member 40 of the push button switch 5, but the present invention is not limited to this. For example, it is formed of a first packing 44 made of a material having heat resistance and chemical resistance, and a material having wear resistance and durability, less permanent strain due to compression, and excellent slidability. The structure may be provided with the second packing 45.

Further, the present invention is not limited to this, for example, a first packing 44 formed of a material having heat resistance and chemical resistance, and a third packing 46 formed of a material having heat resistance and weather resistance. It may have a provided structure.

Further, the present invention is not limited to this, and the first packing 44 may be formed of at least a material having chemical resistance, and the third packing 46 may be formed of at least a material having weather resistance.

Further, in the above-described embodiment, the first packing 44, the second packing 45, and the third packing 46 are placed in this order on the shaft portion 42 of the first operating member 40 from the outer end portion side to the inner end portion side. Although they are arranged, the present invention is not limited to this, and may be arranged in any order.

Further, in the above-described embodiment, the case where it is applied to a wristwatch has been described, but the present invention does not necessarily have to be a wristwatch, and may be applied to various clocks such as a travel watch, an alarm clock, a table clock, and a wall clock. can. Further, the present invention does not necessarily have to be a watch, and can be applied to electronic devices such as mobile terminals and mobile communication devices.

Although one embodiment of the present invention has been described above, the present invention is not limited to this, and includes the invention described in the claims and the equivalent range thereof.
Hereinafter, the inventions described in the claims of the present application will be added.

(Additional note)
The invention according to claim 1 comprises a first member in which a module is housed and provided with a through hole, and a second member fixed to an upper portion of the first member and having a higher rigidity than the first member. The first member includes an operation member having an operation shaft inserted into the through hole of the first member and projecting into the first member, and the second member is the first member corresponding to the operation member. This case is characterized by having an impact receiving portion with which a part of the contact is provided.

According to a second aspect of the present invention, in the case according to the first aspect, the impact receiving portion is provided on the lower surface of the second member corresponding to the operating member, and the second member is provided in the axial direction of the operating shaft. This is a case characterized in that it is in contact with the inner peripheral portion of one member.

According to a third aspect of the present invention, in the case according to the first or second aspect, the outer peripheral surface of the first member is provided so as to project outward from the outer peripheral surface of the second member. The member is a case characterized in that the operating member receives an impact received from the outside.

The invention according to claim 4 is a cylinder in which the operation shaft of the operation member is slidably inserted into the through hole of the first member in the case according to any one of claims 1 to 3. This is a case characterized in that the shaped members are arranged.

The invention according to claim 5 is the case according to any one of claims 1 to 4, wherein the second member is fitted with a protective glass.

According to the sixth aspect of the present invention, in the case according to any one of the first to fifth aspects, the positions of the first member and the second member in the outer peripheral direction are regulated by the positioning portion. This is a case characterized by that.

The invention according to claim 7 is a timepiece comprising the case according to any one of claims 1 to 6.

1 Watch case 3 Band mounting part 4 Switch device 5 Push button switch 6 Watch glass 7 Watch module 7c Contact part 12 Watch movement 15 Case body 16 Exterior member 17 Lower case 17a Mounting protrusion 17b Main body insertion hole 17c Main body connecting hole 18 Upper case 18a 1st ring part 18b 2nd ring part 18c Cylindrical part 20 1st exterior member 21 2nd exterior member 21a Biting groove 21b Locking groove 22-24 1st to 3rd exterior pieces 25 Exterior body parts 26, 27, 35, 38 1st to 4th cover parts 26a, 27a, 35a, 38a 1st to 4th screw mounting holes 26b, 27b, 35b, 38b 1st to 4th connecting holes 33 pin member 34, 37 2nd and 3rd main body parts 34a, 37a Mounting protrusions 34b, 37b Engagement protrusions 39, 48 First and second through holes 40, 51 First and second operating members 42 Shaft 43 Heads 44 to 46 First to third packing 50 Cylindrical members 52 Lock part 52a Male screw 52b Female screw 53 Operation shaft 54 Operation head 57 Impact receiving part 58 Positioning part 58a Notch part

Claims (7)

A first member in which the module is housed and provided with a through hole,
A second member fixed to the upper part of the first member and having a higher rigidity than the first member.
An operating member having an operating shaft inserted into the through hole of the first member and projecting into the first member.
Equipped with
The second member includes an impact receiving portion with which a part of the first member corresponding to the operating member abuts.
A case characterized by that. In the case of claim 1,
The impact receiving portion is provided on the lower surface of the second member corresponding to the operating member, and is in contact with the inner peripheral portion of the first member in the axial direction of the operating shaft.
A case characterized by that. In the case according to claim 1 or claim 2.
The outer peripheral surface of the first member is provided so as to project outward from the outer peripheral surface of the second member, and the first member receives an impact received from the outside by the operating member.
A case characterized by that. In the case according to any one of claims 1 to 3,
In the through hole of the first member, a cylindrical member into which the operation shaft of the operation member is slidably inserted is arranged.
A case characterized by that. In the case according to any one of claims 1 to 4,
The second member is fitted with a protective glass.
A case characterized by that. In the case according to any one of claims 1 to 5.
The positions of the first member and the second member in the outer peripheral direction are regulated by the positioning portion.
A case characterized by that. The case according to any one of claims 1 to 6 is provided.
A watch that features that.

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