JPH046571Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> This invention relates to a cantilever type bracelet watch, and more specifically, to a bracelet watch that allows easy and reliable opening and closing between the watch case and the arm.

<Problems to be solved by this invention> Regarding this type of cantilevered bracelet watch, there is Japanese Utility Model Publication No. 56-48167. The shaft is fixed, and the other end of the return spring, which has one end fixed to the shaft, is pressed against the center of the inner bottom surface of the joint, and the opening is expanded by the return pressure. The box-shaped joints are stiff and uncomfortable around the wrists, and there is also the problem of not being able to confirm when they are opened or closed, especially when they are closed. There is also the problem that if the band piece comes into contact with another object and is pushed, it may open unexpectedly. The present invention attempts to solve such problems.

<Structure of the invention> In the present invention, a cylindrical body having the same diameter as the arm is attached to the tip of a circular arm extending from the watch case, one half of the relay shaft is elastically fitted into the cylindrical body with a tension spring in between, and the relay shaft is A second circular arm is attached to the other half so that it can be pulled and rotated so as to move toward and away from the cylindrical body, and a concave and convex portion for latching is provided on the opposing end surfaces of the second arm and the cylindrical body. The bracelet watch is characterized by the following features:

<Example> Examples will be described below based on the drawings.

A cylindrical body 4 is formed, which is integrally connected to a watch case 1 and extends in a semi-circular bent shape and has a finger-shaped design on the outside surface, and a step part is provided at the tip of the arm 2 and the arm 2 is formed to have the same diameter. The base is inserted and fixed with the side screws 5. An inward circumferential surface 6 is provided at the tip of the cylindrical body 4, a recess 7 for latching is provided on the outside of the circumferential surface 6, and one half of the relay shaft 9 is inserted inside with a coil spring 8 sandwiched therebetween as a tension spring. The half protrudes outside the cylindrical body 4, and one end of a second circular arm 11 having a convex portion 10 on its tip surface that engages elastically with the above-mentioned latching concave portion 7 is inserted into this protruding portion. , is fixed with 12 screws.

In the bracelet watch of the present invention, when the second arm 11 is pulled to the right in the state shown in Fig. 3, the coil spring 8
is compressed to move the relay shaft 9 forward, as shown in FIG. The cantilever gap 13 of the watch is opened so that it can be worn on and taken off around the wrist.
When the second arm 11 is rotated back to its original position, the gap 13 becomes narrower as shown in FIG. They mesh to hold the second arm 11 in a fixed state.

<Effects of the invention> As described above, the present invention provides a relay shaft that advances and retreats with a tension spring at the end of the semicircular bent arm that cantilevers the clock, and pulls the second arm attached to the relay shaft. This makes it extremely easy to open and close the second arm, and since the cylindrical body and the second arm are provided with a recessed part for locking, the second arm can be rotated back by engaging the recessed part. This has the effect of being able to confirm that the door is closed and preventing it from opening unexpectedly even if it comes into contact with another object.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a bracelet watch according to the present invention, and the arrow indicates the direction of rotation. Second
The figure is a partial front view showing an example of opening of the cantilever gap due to the rotation of the other half of the arm in the worn state.
Cross-sectional view when rotated, 1 is the watch case, 2
is an arm, 3 is a stepped portion, 4 is a cylindrical body, 5 is a side screw, 6 is an inward circumferential surface, 7 is a recessed portion, 8 is a coil spring,
9 is a relay shaft, 10 is a convex portion, 11 is a second arm, 1
2 is a screw, and 13 is a cantilever gap.

Claims (1)

[Scope of utility model registration request] A cylindrical body having the same diameter as the arm is attached to the tip of a circular arm extending from the watch case, one half of the relay shaft is elastically fitted into the cylindrical body with a tension spring in between, and the other half of the relay shaft is attached to the cylindrical body. Pull the circular second arm so that it approaches and separates it, and insert and attach it so that it can rotate.
1. A bracelet watch, characterized in that a concave and convex portion for latching is provided on the opposing end surfaces of the arm and the cylindrical body.