JPS6247104Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a watch hand stop device.

2. Description of the Related Art Conventionally, there has been a watch hand clamping device as shown in FIG. The hand-clamping device of this watch has a hand-clamping knob member 1, which is shown enlarged in FIG. An operating member 4, which is one of its components, protrudes outward from the case 2.

This needle clamping knob member 1 integrally includes a stopper member 7 that engages with a gear portion 6 of a rotor 5 and an elastic arm 8 for positioning. You will be guided along the route. The positioning elastic arm 8 is adapted to engage with the pin 10 to determine the position of the needle clamping knob member 1, and this elastic arm 8 is arranged in the direction in which the needle clamping knob member 1 is guided. Due to the long extension, the space between the intermediate base plate 3 and the case 2 is restricted by this amount, and there is a problem in that it is difficult to utilize this space effectively.

The present invention was developed in view of this point, and the feature of the present invention is that the guide member itself is used to position the needle clamp member, thereby reducing the space between the intermediate base plate and the case. It is designed so that it can be used effectively.

Embodiments of the present invention will be described below with reference to the drawings.

In Figures 3 to 5, 11 is a case;
12 is an intermediate base plate, and a guide member 13 is formed protruding from the intermediate base plate 12. As shown in FIGS. 6 and 7, the needle clamping knob member 14 has an operating portion 15, a stopper member 16, and opposing walls 17, 18. The opposing space between them is an insertion space S for the guide member 13. Here, on the inner wall of the opposing wall portion 18,
A substantially semicircular protrusion 19 is formed to protrude toward the insertion space S, and the opposing wall portion 18 is configured to be elastically deformable. On the other hand, the other opposing wall 17 is divided into a dividing wall 17A and a dividing wall 1.
7B. The guide member 13 includes
As shown in FIG. 8, a recess 20 is formed on the side facing the projection 19, and here, the recess 20 is divided by a small projection 21 into a recess 20A and a recess 20B. The locations 20A and 20B are spaced apart from each other by a certain distance in the guiding direction of the needle clamping knob member 14. The guide member 13 has, as shown in FIG.
A percussion projection 23 is provided in the vicinity of the rotor hole 22 on the surface opposite to the surface on which the recess 20 is formed, and the perforation projection 21 is formed on the dividing wall 1.
It fits into the space S' between the needle clamp member 7A and the dividing wall portion 17B, and restricts the movement of the needle clamping knob member 14 to a predetermined length.

Next, the action will be explained.

In a state where the recess 20A of the guide member 13 and the protrusion 19 of the needle clamp member 14 are fitted, the needle clamp member 14 is inserted into the guide member 13.
When guided along the guide member 13, the protrusion 19 engages with the small protrusion 21, and a force is applied to the opposing wall 18 to elastically deform the opposing wall 18 in a direction that moves it away from the guide member 13, and the protrusion 19 engages with the small protrusion 21. 21 and is fitted into the recess 20B. Therefore, the needle clamping knob member 14 is positioned with a click feeling due to the elastic deformation of the opposing wall portion 18.

Although the embodiments have been described above, the present invention is not limited thereto and includes the following. That is, at least one protrusion 19 is provided on either one of the opposing walls 17, 18 and the guide member 13, and at least two recesses 20A, 20B that engage with the protrusion 19 are provided on the other. That's fine.

As explained above, in the present invention, the guide member itself is used to position the needle clamping knob member, so there is no need to provide an elastic arm for positioning that extends long in the guide direction, unlike in the past. Therefore, the space between the main plate and the case can be effectively utilized.

Further, since the needle clamping knob member is positioned by fitting the protrusion 19 into the recesses 20A and 20B, the positioning can be performed reliably with a sufficient click feeling.

Furthermore, since the positioning of the needle clamping knob member is performed using the guide member, there is no need to process the case, etc., so that the strength of the case, etc. does not decrease and the lifespan is improved.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway plan view of a conventional watch hand clamping device. FIG. 2 is a partially enlarged cross-sectional view of a hand-clamping knob member of a conventional watch hand-clamping device.
FIG. 3 is a partially cutaway plan view of the watch hand clamping device according to the present invention. FIG. 4 is a partially enlarged cross-sectional view of the hand-clamping knob member of the watch hand-clamping device according to the present invention. FIG. 5 is a cross-sectional view of the hand-clamping knob member of the watch hand-clamping device according to the present invention taken along a plane orthogonal to the guide direction. 6 and 7 are perspective views of the needle clamping knob member according to the present invention. 8 and 9 are perspective views of the guide member according to the present invention. 11... Case, 12... Intermediate plate, 13... Guide member, 14... Needle clamp member, 17,
18...Opposing wall part, 19...Protrusion, 20A, 20
B... recess, S... insertion space.

Claims (1)

[Scope of Claim for Utility Model Registration] A case, an intermediate base plate spaced apart from and substantially parallel to the case, and a guide member formed protruding from the intermediate base plate opposite to the case, facing each other. a needle clamping knob member having an opposing wall portion, the opposing space serving as an insertion space for the guide member, and guided by the guide member;
In the watch hand clamping device, the rotation of the rotor is stopped by operating an operating part provided on the hand clamping knob member and protruding toward the outside of the case, wherein the guide member is configured to stop the rotation of the rotor. The intermediate base plate is formed so as to extend in the direction in which the needle clamping knob member is guided between the case and the intermediate base plate, and the opposing wall portion of the needle clamping knob member extends in the direction in which the needle clamping knob member is guided. at least one element formed to extend, and elastically deforming the opposing wall part in a direction in which the opposing wall part moves away from the guide member, on either one of the opposing wall part of the needle clamping knob member and the guide member. a recess is formed in the other of the opposite wall of the needle clamping knob member and the guide member, and the recess is engaged with the projection to elastically deform the opposite wall. By forming small protrusions and dividing the recess into a plurality of parts, at least two portions are formed that engage with the protrusions in the direction in which the needle clamping knob member is guided to position the needle clamping knob member. a recess is formed between the opposing wall portion of the needle clamping knob member and the guide member between the case and the intermediate base plate;
The operating portion of the needle clamp member is operated from outside the case so that the protrusion and the recess are fitted so that the needle clamp member is guided along the guide member. A clock hand stop device characterized in that it is operable.