JPH04102492U - push button structure - Google Patents

Abstract

(57) [Summary] [Purpose] To easily and surely lock a push button in a push button structure so that the push button does not slide by itself. [Structure] A lock release groove 7 is provided in the axial direction on the inner surface of a mounting hole 6 that penetrates inside and outside of the wristwatch case 1, and a lock member 3 is slidably and rotatably disposed within this mounting hole 6. A push button 2 having a head 8 and a shaft portion 9 is slidably disposed through the lock member 3, and a storage hole 17 for storing the head 8 is provided in the locking member 3 so that the inner end of the head 8 can come into contact with and separate from the push button 2. It slides in the abutting part 18 and the lock release groove 7 and separates from the lock release groove 7 to open the mounting hole 6.
A hook portion 15 is provided which comes into contact with the outer edge of.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a push button structure used in electronic devices such as electronic wristwatches.

0002

[Conventional technology]

Conventionally, the push button structure of electronic watches has a small diameter on the inside and a large diameter on the outside on the side wall of the watch case. A mounting hole with a stepped diameter is formed through the inside and outside, and the inside of the large diameter part of this mounting hole is The head of the push button is exposed to the outside, and the push button is placed in the small diameter part of the mounting hole. Insert the shaft, let the tip of the shaft protrude into the watch case, and attach the E ring to the tip. Structure in which the push button can be slid into the mounting hole by attaching the ring. It becomes. In this case, the outer periphery of the pushbutton shaft is designed to push the head outward. A coil spring is provided that biases the body. In such a push button structure, the coil bar When you press the head of the push button against the force, the shaft of the push button slides inward through the mounting hole. The tip is pushed out into the watch case, causing the inside of the watch case to The switch contacts of the watch module provided in the watch module can be made conductive.

0003

[Problem that the idea aims to solve]

However, with the push button structure described above, the head of the push button may accidentally hit an object, etc. If you do so, the push button will be pushed in and the switch contacts will become conductive. Ru. In addition, when applied to a wristwatch with a depth gauge, it can be The switch contacts are conducting because the push button is pushed in against the coil spring. There is a drawback.

0004 The purpose of this invention is to easily and reliably press the push button so that it does not slide by itself. It is an object of the present invention to provide a push button structure that can be locked.

[0005]

[Means to solve the problem]

This idea is based on the idea that the inner surface of the mounting hole, which penetrates the case member internally and externally, is A lock release groove is provided in the axial direction, and the lock is slidably and rotatably placed within this mounting hole. A push button having a head and a shaft is provided so as to be slidable through a locked lock member, and A storage hole for slidably storing the head, and an inner end of the head are connected to the lock member. A contact part that can be releasably abutted, and a lock that slides inside the lock release groove and locks. It is characterized by a hook part that separates from the release groove and comes into contact with the outer edge of the mounting hole. Ru.

[0006]

【Example】

1 to 5 show an embodiment in which this invention is applied to an electronic wristwatch. In these figures , 1 is a watch case, 2 is a push button, and 3 is a lock member. I will explain them in order.

[0007] As shown in FIGS. 1 to 3, a watch glass 4 is attached to the upper part of the watch case 1. , a back cover 5 is attached to the bottom via a packing 5a, and a watch module is installed inside. (not shown). Additionally, there is a mounting hole 6 on the side wall of the wristwatch case 1. It is provided so as to penetrate from the inside to the outside. This mounting hole 6 goes from the inside to the outside. It is a step-shaped hole that gradually becomes larger in diameter, with a small diameter hole 6a on the inside and a middle part. Medium diameter holes 6b, 6c and a large diameter hole 6d are formed in this order on the outside. this In this case, there are two lock release grooves 7 on the inner surface of the large diameter hole 6d on the outside as shown in FIG. are provided facing each other along the axial direction.

[0008] As shown in FIG. 3, the push button 2 has a shaft portion 9 integrally formed on the inner surface (left side) of the head 8. A mounting groove 9a is provided at the tip (left end) of the shaft 9. Two waterproof rings 10 and washers 11 are slidably provided in the middle part of 9. A coil spring 12 is attached to the outer periphery of the shaft portion 9 between the washer 11 and the head 8. It is provided. As shown in FIGS. 1 and 2, this push button 2 has a shaft portion 9 that is It is inserted into the mounting hole 6 of the case 1 via the locking member 3, and the tip of this shaft portion 9 is inserted into the mounting hole 6 of the case 1. The E-ring 13 protrudes into the watch case 1 and is inserted into the mounting groove 9a of the protruding shaft portion 9. is mounted so that it can be slid into the mounting hole 6. in this case , the shaft portion 9 is formed to have approximately the same diameter as the small diameter hole 6a or a slightly smaller diameter. prevention The water ring 10 is installed within the intermediate diameter hole 6b. In addition, the head 8 is inside the large diameter hole 6d. It is arranged with a margin and is arranged so as to protrude from inside the large diameter hole 6d. Ru. Furthermore, one end of the coil spring 12 is attached to the intermediate diameter hole 6b of the mounting hole 6. The other end contacts the washer 11 that contacts the waterproof ring 10, and the other end contacts the inner surface of the head 8. This biases the push button 2 to the outside of the watch case 1. .

[0009] The locking member 3 is formed in a ring shape from synthetic resin, and is shown in FIGS. 1 and 2. As shown, it is slidably and rotatably attached to the large diameter hole 6d of the mounting hole 6. . That is, as shown in FIG. d, and has a flange 14 at its outer end (right end). At the same time, at a predetermined location on the outer periphery, there is a lock release groove 7 of the large diameter hole 6d. Two hook parts 15 that are inserted and slid are provided facing each other. This foot As shown in FIG. By providing a slit-shaped notch 16 over the area, it can be elastically deformed in the circumferential direction. The groove is slightly longer than the circumferential depth of the lock release groove 7. It is formed to protrude in the circumferential direction. Also, inside the lock member 3, there is a push button 2. The storage hole 17 into which the head 8 is slidably inserted gradually widens from the inside to the outside. The inner edge of the head 8 is in contact with the inner edge of the tapered shape. A flange-like contact portion 18 is provided. In this case, the depth of the storage hole 17 is It is formed to have approximately the same length as the head 8 of No. 2.

0010 Next, the operation of the above-described push button structure will be explained. Typically, the lock is shown in Figure 1. Flex the hook portion 15 of the hook member 3 toward the center, and in this state insert the hook portion 15 into the mounting hole. 6 into the lock release groove 7 of the large diameter hole 6d, and the lock member 3 is inserted into the large diameter hole 6d. Push it into. At this time, since the hook portion 15 is in elastic contact with the lock release groove 7, The locking member 3 does not wobble within the large diameter hole 6d. In addition, the hook portion 15 is Even if the storage hole 17 is bent in the direction of Just contacting the head 8 of the button 2 does not hinder the sliding movement of the head 8. child When the lock member 3 is pushed into the large diameter hole 6d as shown in the figure, the flange 1 of the lock member 3 4 comes into contact with the side wall of the wristwatch case 1, and the internal contact portion 18 contacts the large diameter hole 6d. The push button 2 comes into contact with the left side surface of the push button 2 and is separated from the inner end of the head 8 of the push button 2. For this reason, push button 2 The head 8 is separated from the locking member 3 by the distance from the abutting portion 18 of the locking member 3. It will stick out. Therefore, the head 8 is pressed against the coil spring 12. Then, the shaft portion 9 slides inside the waterproof ring 10 and the small diameter hole 6a of the mounting hole 6, and the shaft The tip of the portion 9 is pushed out into the watch case 1. As a result, push button 2 is a watch The switch contacts of the clock module (not shown) inside the case 1 can be made conductive. .

[0011] In addition, when locking the push button 2, place your finger on the flange 14 of the lock member 3. pull out the lock member 3 to the outside and pull the hook part 15 from inside the lock release groove 7. put out. Then, the hook portion 15 returns toward the outside in the circumferential direction due to elastic force, and the The hook member 3 becomes rotatable in the large diameter hole 6d of the attachment hole 6. Moreover, this At this time, the contact portion 18 of the lock member 3 contacts the inner end of the head 8 of the push button 2. child Therefore, the lock member 3 does not completely separate from the large diameter hole 6d of the attachment hole 6. Further, the head 8 of the push button 2 does not protrude outside from the storage hole 17 of the lock member 3. It is stored easily. In this state, as shown by the two-dot chain line in FIG. 5(a), the locking member 3 When the hook part 15 is shifted from the lock release groove 7 by rotating it by a predetermined angle, the hook part 1 5 comes into contact with the outer edge of the large diameter hole 6d of the mounting hole 6. This allows the locking member to 3 is not pushed into the large diameter hole 6d, and the push button is not pushed into the contact portion 15 of the lock member 3. The push button 2 is held in a state in which the inner end of the head 8 of the push button 2 is in contact with the inner end. For this reason, push button 2 If the head 8 accidentally hits an object, or if water pressure acts on the push button 2 while submerged underwater, Even if the push button 2 is not operated, the push button 2 can be reliably locked, and the arm The switch contacts of the watch module in the watch case 1 are not made conductive.

0012 In addition, in the embodiment described above, from the flange part 14 of the locking member 3 to the middle of the outer peripheral part. By providing a slit-shaped notch 16, the locking member 3 can be elastically deformed. Although the hook portion 15 is formed, it does not necessarily have to be an elastically deformable hook portion. slides in the lock release groove 7, and is pulled out from the lock release groove 7 and locked. If the hook member 3 comes into contact with the outer edge of the large diameter hole 6d of the mounting hole 6 when it rotates, good.

[0013] In addition, in the above-mentioned embodiment, the case where it was applied to a wristwatch was described, but this However, it can also be applied to watches such as travel watches, and can also be used underwater. It can also be widely applied to electronic devices such as cameras.

[0014]

[Effect of the idea]

As explained above, according to this invention, it is possible to slide and fit into the mounting hole of the case body. state in which the abutting part of the locking member, which is rotatably attached, is in contact with the head of the push button. The structure is such that the lock member is fixed to the case body using the hook part of the lock member. , the push button can be easily and securely locked to prevent it from sliding by itself. Therefore, you may accidentally hit the push button against an object, or you may go underwater and hit the push button. Even if water pressure is applied, the push button will operate and conduct the switch contacts inside the case body. There is no fault.

[Brief explanation of drawings]

FIG. 1 is an enlarged sectional view of the main parts of a push button structure applied to a wristwatch in a normal state.

FIG. 2 is an enlarged sectional view showing the locked state of the push button.

FIG. 3 is an exploded view of the push button structure.

FIG. 4 is an enlarged front view showing the mounting hole of the wristwatch case.

FIG. 5(a) is a front view of the locking member, and FIG. 5(b) is a side view thereof.

[Explanation of symbols]

1 Watch case 2 push button 3 Lock member 6 Mounting hole 7 Lock release groove 8 Head 9 Shaft part 15 Hook part 17 Storage hole 18 Contact part

Claims (1)

[Scope of utility model registration request] 1. A case member having a mounting hole with a lock release groove provided in the axial direction on the inner surface passing through the inside and outside, and a head and a shaft part, which can be slid into the mounting hole. a push button disposed in the mounting hole, a storage hole slidably and rotatably disposed in the mounting hole and slidably housing the head, a contact portion with which an inner end of the head abuts so as to be removable; and a locking member having a hook portion that slides in the lock release groove, leaves the lock release groove, and comes into contact with an outer edge of the attachment hole.