JPS6142404Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a buckle for a band for a diver watch.

Bands used for diver watches are generally fastened with a so-called buckle. That is, as shown in FIG. 1, a through hole 1a is formed in the end of one band 1 in the lateral direction, and a through hole 2a is formed in one end of the protruding rod 2 at the center of the end. The spring rod 3 is inserted into the through hole 1a of the band 1, and the protruding rod 2 is rotatably attached to the middle part of the spring rod 3. Both ends are respectively engaged with through holes 4a and 4b drilled at both ends of the U-shaped frame member 4, and the other band 5 is inserted into the frame member 4 from below, and the through holes drilled in the band 5 are engaged with each other. By inserting the protruding rod 2 into the hole 5a and locking the protruding rod 2 in the center of the frame member 4, both bands 1 and 5 are fastened into an annular shape. When a diver uses this type of band while diving and the diving wear is brought into close contact with the body due to water pressure, the band may become loose on the arm and the band may have to be tightened again. However, due to the underwater working environment, it is difficult to fasten the buckle with one hand, and there has long been a demand for a buckle that can be easily retightened by simply pulling on one end of the band.

Therefore, an object of the present invention is to provide a buckle that meets the above requirements and is easy to handle and convenient.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIGS. 2 and 3 are a plan view and a sectional view of a main part of the band for a diver watch, and FIGS. 4 and 5 are perspective views of a protrusion rod and a leaf spring used in the buckle. The protruding rod 6 is composed of a cylindrical portion 6b having a through hole 6a, and a shaft portion 6c extending from the middle of the cylindrical portion 6b. side 6f,
6g each. The leaf spring 7 has three legs 7a, 7b, and 7c extending from one side, the outer two legs 7a and 7c extend horizontally, and their tips are curved downward, and the middle leg 7b is L-shaped. It is bent and extends horizontally below the two legs 7a and 7c. One end of the band 8 is provided with a recess 8a in which the protruding rod 6 is disposed, and two legs 8b, 8c formed by the recess 8a are provided with a through hole through which the spring rod 9 is inserted. 8d and 8e are formed facing each other.

Further, a notch 8f with which the foot 7b of the leaf spring 7 engages is formed in the recess 8a between the two legs 8b, 8c. The U-shaped frame member 10 has through holes 10a and 10b formed at both ends to engage both ends of the spring bar 9. The other band 11 has a plurality of through holes 11a and 11b into which the protruding rod 7 is inserted.

To assemble the buckle constructed as described above, first, the legs 7b of the leaf spring 7 are engaged with the notches 8f of the band 8, and the three legs 7a, 7b, 7c occupy the recesses 8a of the band 8 so that the plate The spring 7 is fixed to the end surface of the band 8 with rivets, screws, screws, etc. Next, the protruding rod 6 is disposed in the recess 8a, and the upper surface 6d and lower surface 6e of the cylindrical portion 6b are sandwiched between the upper legs 7a, 7c and the lower leg 7b, respectively, and pressed together. The through hole 6a of the band 8 and the through hole 8 of the band 8
A spring rod 9 is inserted through a communication hole in which d and 8e are connected in a straight line, and a protruding rod 6 is rotatably attached to an intermediate portion of the spring rod 9.

Further, both ends of the spring bar 9 protruding from both the through holes 8d and 8e are connected to the through holes 10a and 10 of the U-shaped frame member 10.
The buckle is assembled by engaging the buttons b.

Also, in order to fasten the band, the other band 11
is inserted into the frame member 10 from below, the protruding rod 6 is fitted into the through hole 11a of the band 11, and both bands 8, 1
1 is pulled to lock the protruding rod 6 in the center of the frame member 10, the annular band fastening is completed. Then, when re-tightening the band, when the other band 11 is pulled, the protrusion rod 6 comes out from the through hole 11a, but the three legs 7a, 7b, 7c of the leaf spring 7 sandwich the upper surface 6d and lower surface 6e of the protrusion rod 6. Since the protruding rod 6 is pressed against the frame member 10, a force is always exerted to push the protruding rod 6 toward the frame member 10.
It can be inserted into.

As described above, the present invention has a function in which the protruding rod of the buckle is always brought closer to the frame member by the leaf spring, and it is possible to realize an easy-to-handle buckle fastening of the band that allows the band to be easily retightened with one hand.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of a conventional diver watch band, Figs. 2 and 3 are a partially cutaway plan view and a sectional view of essential parts of a diver watch band showing an embodiment of the present invention, and Fig. 4 is an exploded perspective view of a conventional diver watch band. FIG. 5 is a perspective view of the protruding rod and leaf spring used in the present invention. 6...Protruding rod, 6a...Through hole, 6b...Cylinder part,
6c...shaft portion, 7...plate spring, 7a, 7b, 7c
...leg, 8...band, 8a...recess, 8b, 8
c... Leg, 8 f... Notch, 9... Spring bar, 10
...Frame member, 11...Band.

Claims (1)

[Scope of utility model registration request] A recess 8a for arranging the protruding rod 6 is provided at the end of the band 8, and two legs 8 are formed by the recess 8a.
Through holes 8d and 8e are formed in b and 8c for inserting the spring rod, and the protruding rod 6 has a cylindrical portion 6 having a through hole 6a.
b, and a shaft portion 6c extending from the middle of the cylindrical portion 6b, the cylindrical portion 6b has an upper surface 6d and a lower surface 6e which are opposed to each other and are made of flat surfaces, and a through hole 6a of the cylindrical portion 6b and a through hole of the band 8 are formed. 8d and 8e are connected in a straight line, and the protruding rod 6 is rotatably attached to the middle part of the spring rod 9.
The two ends of the spring rods 9 protruding from d and 8e are engaged with through holes 10a and 10b drilled at both ends of the U-shaped frame member 10, and three spring rods extend from one side of the leaf spring 7 fixed to the end surface of the band 8. The outer two legs 7a, 7c of the legs 7a, 7b, 7c are attached to the upper surface 6 of the cylindrical portion 6b.
d, and the middle leg 7b is attached to the lower surface 6 of the cylindrical portion 6b.
A buckle for a band for a diver watch, which is characterized by being pressed into contact with e.