JPS6221980Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a structure for preventing rotation of a register ring in a diver watch.

A partial cross-sectional view of the structure of a conventional diver watch is shown in FIG.

In this structure, a large number of engagement grooves 3 are formed in a register ring 2 which is rotatably fitted to the outer circumference of a watch case body 1, and the engagement grooves 3 are selectively positioned by a click spring 4.

However, with this structure, it is not possible to prevent the register ring from rotating against the elasticity of the click spring due to contact with other objects during diving, and there is a risk that the preset diving time will be incorrect. However, it had the disadvantage of being extremely dangerous.

Further, as one of the conventional examples of regulating the rotation of the register ring, there is Japanese Patent Application Laid-Open No. 49-112662. This structure works by pressing the register ring downward in the clockwise direction against a wavy leaf spring placed between the bottom surface of the register ring and the stepped part of the body, or by releasing the register ring. This is used to release or engage the attached rotation stopper pin from the groove in the body. However, in this structure, the register ring does not have a click rotation function, so when the register ring is pressed down and rotated to the desired position and then released, the shaft of the rotation stopper pin moves into the groove in the body. There is a risk that it will not engage and remain in contact with the bottom surface of the groove, making it dangerous to use while diving.

By improving the above-mentioned drawbacks, the present invention prevents the register ring from rotating against the elasticity of the click spring due to contact with other objects during diving work, etc., and also prevents the register ring from rotating against the elasticity of the click spring. The purpose is to provide a structure in which the register ring is securely fixed when released from pressure, thereby increasing the safety of diving operations, etc.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Figures 2 and 3 show an embodiment of the present invention, and both are cross-sectional views of a diver watch.
Figure 2 shows the register ring in its anti-rotation state, Figure 3
The figure shows the register ring in a rotatable state, and FIG. 4 is a partial perspective view of the click spring used in the present invention. 1 is a body; 5 is a glass fitted to the inside of the upper part of the body 1 with packings 6 and 7 interposed therebetween; 8 is screwed into a threaded portion 9 formed above the body 1; A ring screw 11 for a glass press is screwed to the body 1 through a packing 12, and a back cover is screwed to the body 1 through a packing 12. The register ring 2 is composed of a dial 13 and a ring member 14 on its outer periphery.The register ring 2 has a number of chevron-shaped notches around the lower surface of the ring member 14, similar to the conventional example shown in FIG. An engagement groove 3 is provided.

A click portion 15 formed on a click spring 40 is engaged with this engagement groove 3. Click spring 4
0 is fixed to the body 1 by caulking a pin member 16.

The click portion 15 is formed by partially cutting and raising the click spring 40 as shown in the perspective view of FIG. At the same time, the elasticity of the click spring 40 pushes the register ring 2 upward with respect to the watch case axis.

In FIG. 2, which is a normal state in which the register ring 2 is free from external forces pressing on it, the register ring 2 has an upwardly facing stepped portion 18 provided near its bottom and a register ring guard 19 provided at its inner circumference. It comes into contact with the downwardly facing stepped portion 20 and receives a pushing force from the click spring 40. The register ring guard 19 is attached to the body 1 by screws 21.
Fixed. At this time, a pin member 23 protrudes from a hole 22 penetrating from the side inside the center of the ring member 14 of the register ring 2 by press fitting or the like, and a plurality of mountain-shaped notches are formed on the upper outer circumference of the body 1. The engagement portion 24 is engaged with the engagement portion 24 . This engagement occurs between the engagement groove 3 of the register ring 2 and the click spring 4.
This is synchronized with the engagement with the click portion 15 of 0. That is, when the tip 17 of the click portion 15 of the click spring 40 engages with the engagement groove 3 of the register ring 2, the pin member 23 of the register ring 2 and the engagement portion 24 of the barrel 1 engage with each other. It turns out.

Next, the operation of the present invention will be explained.

When the register ring 2 is not pressed, the elasticity of the click spring 40 causes the register ring 2 to rise as shown in FIG. is engaged to prevent rotation.

From this state, a force is applied in the P direction as shown in FIG. It is separated from the section 24.

After detachment, the register ring 2 is rotated against the elasticity of the click spring 40 while being pressed, and the engagement groove 3 is positioned by the click portion 15, and a desired time is set.

The register ring 2 can be rotated clockwise or counterclockwise because the engagement groove 3 of the register ring 2 and the click portion 15 of the click spring 40 engage with each other in a mountain shape.

After rotating the register ring 2 as described above and setting it at the desired position, stop pressing and rotate the register ring 2.
When released, the register ring 2 rises due to the elasticity of the click spring 40. At this time, align the pin member 23 of the register ring 2 to a position where the engagement groove 3 formed at the lower part of the register ring 2 and the click part 15 of the click spring 40 are properly engaged.
Since the pin member 23 of the register ring 2 is configured to engage with the engaging portion 24 of the barrel 1, there is no possibility that the pin member 23 of the register ring 2 will collide with the lower surface of the engaging portion 24 of the barrel 1 and prevent the register ring 2 from rising. It can be raised smoothly. As described above, the register ring 2 prevents the register ring 2 from rotating due to contact with other objects, etc. by engaging the pin member 23 fixed to the register ring 2 with the engaging portion 24 of the barrel 1. I can do things.

As described above, the present invention adopts a rotation prevention structure by pressing the register ring, and the engagement between the pin member of the register ring and the engaging part of the body is caused by the engagement groove of the register ring and the click spring. Since it is synchronized with the engagement with the register ring, it prevents the risk of setting time discrepancies during diving work, etc., and allows setting to be done quickly and reliably. Since the gap that may occur between the watch and the stepped part is covered by the register ring guard attached to the body, there is less possibility of foreign objects getting into this gap, which improves the functionality and reliability of the diver watch. has.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a conventional diver watch, and FIGS. 2 and 3 are cross-sectional views of a diver watch according to the present invention. FIG. 3 shows a state in which the register ring is allowed to rotate, and FIG. 4 is a partial perspective view of the click spring used in the present invention. DESCRIPTION OF SYMBOLS 1... Body, 2... Register ring, 3... Engagement groove, 4, 40... Click spring, 8... Ring screw, 9... Threaded part, 10... Glass holding ring, 14... Ring member, 15 ...Click club,
17... Tip part, 18... Step part, 19... Register ring guard, 20... Step part, 21... Screw, 22... Hole, 23... Pin member, 24... Engaging part.

Claims (1)

[Scope of utility model registration request] A pin member protruding inward from the center of the register ring is engaged with a large number of chevron-shaped engaging portions formed on the outer periphery of the body, and an upward stepped portion provided on the outer periphery of the register ring is engaged with the engaging portion formed on the outer periphery of the body. The register ring guard attached to the barrel is brought into contact with the downward step provided on the inner circumference, and the step formed below the engagement part of the barrel has a large number of chevron-shaped holes provided on the lower surface of the register ring. A click spring having a click portion that elastically engages with an engagement groove of the watch case is fixed, and the click spring pushes up the register ring in the axial direction of the watch case, engages the pin member with the engagement portion, and pushes the register ring upward. When pushed down in the axial direction of the watch case, the pin member of the register ring is disengaged from the engaging part of the case, making the register ring rotatable;
Furthermore, in the diver watch, the engagement between the engagement portion of the barrel and the pin member of the register ring is synchronized with the engagement between the engagement groove of the register ring and the click portion of the click spring. Register ring anti-rotation structure.