JPH0216659Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention relates to a bifold metal fitting for a watch band.

<Problems that this invention aims to solve> Conventional bi-folding metal fittings for watch bands have hooking/detaching mechanisms at symmetrical positions on the two plates that make up the metal fitting. There was a problem in that if the mechanisms were misaligned, the reliability of hooking could not be maintained. The present invention attempts to solve such problems.

<Structure of the invention> The present invention consists of one half of the elongated plate material having a long groove with one end open in the longitudinal direction in the middle, and the other half of the elongated plate material that is fitted into the open end of the long groove and pivoted with a pin. One half of the elongated plate has a V-shaped groove along the entire length of the end face on both longitudinal sides, and a member with a cylindrical part for attaching a band is screwed onto the non-open end of the elongated groove so that it can be freely inserted and removed. The plate material is a two-fold metal fitting for a watch band, which has spring-loaded protrusions on both end faces of the tip for hanging and removing.

<Example> Examples will be described below with reference to the drawings.

1 is one half of the elongated plate material, and 2 is the other half of the elongated plate material. Both plates 1 and 2 are gently curved in the longitudinal direction so as to fit around the wrist. One half of the plate material 1 has a long groove 3 with one end open in the longitudinal direction in the middle thereof, and V-shaped grooves 4a and 4b are provided on the entire length of the end surface on both longitudinal sides of the long groove 3. 5
is a band attachment member having a cylindrical portion 6a, with screw holes 7a and 7b provided on the inside and outside, and screw holes 9 on the base plate 8 as shown in FIGS. 6A and 6B. By aligning the screw holes of and tightening 10 screws,
Installed so that it can be put in and taken out freely. The other half of the plate material 2 has a width and length that tightly fits into the long groove 3,
Insert the base end into the open end of the long groove 3 and insert the pin 11.
Attach the stop. Numerals 12a and 12b are protrusions for hanging and detaching, and are hooked to both ends of a cross hole 13 provided in the middle of the tip of the plate material 2 with their tips exposed. 14 is a protrusion insertion pipe, 15 is a coil spring for extending the protrusion, and 16 and 17 are latching claws.

In addition, Figure 5 shows the insertion pipe and coil spring 2.
An example of dividing into individual parts is shown. 6b is plate material 2
This is a cylindrical part for attaching a band provided on the tip of the holder.

The watch bands 18a and 18b have cylindrical portions 6c and 6d on the back surfaces of their ends, and are fitted into the cylindrical portions 6a and 6b, respectively, and connected with pins 19.

Figure 3 shows the two-fold metal fitting in an expanded state, and when the plate 2 is rotated toward the plate 1 side, the protrusion 1
2a and 12b compress the coil spring 15 by the long groove 3 and infiltrate into the plate material 2, and at the point where the plate material 2 is completely fitted into the long groove 3, they protrude, forming V-shaped grooves 4a, 12b as shown in FIG. 4b to maintain the folded state. When the plate member 2 is rotated and unfolded against the hook, the watch band is elongated and can be freely inserted and removed from around the wrist.

<Effects of the invention> As described above, in this invention, a V-shaped groove is provided along the entire length of the one-half plate-shaped long hole, so even if the hanging position of the protrusion shifts back and forth due to repeated use, it will continue to be hung securely. This creates an effect that can be continued. Furthermore, since the band attachment member is attached to one and a half plates so that it can be adjusted in and out, the band length can be easily finely adjusted by inserting and removing the member.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a watch band using the bi-folding metal fitting of the present invention when folded, Fig. 2 is a front view of the same, Fig. 3 is a perspective view of each component when unfolded, and Fig. 4 is a protrusion. Figure 5 is an enlarged vertical cross-sectional view showing an example of how the child is attached, Figure 5 is a vertical cross-sectional view of an example in which the coil spring and insertion pipe are divided into two parts, and Figures 6 A and B show how the band attachment member is screwed in and out. In the enlarged longitudinal sectional view shown, 1 is one half of the elongated plate, 2 is the other half of the elongated plate, 3 is a long groove, 4a,
4b is a V-shaped groove, 5 is a band attachment member, 6a,
6b, 6c, 6d are cylinder parts, 7a, 7b are screw holes,
8 is a base plate, 9 is a screw hole, 10 is a screw, 11 is a pin, 12a, 12b are protrusions, 13 is a transverse hole, 14
15 is an insertion pipe, 15 is a coil spring, 16 and 17 are latching claws, 18a and 18b are watch bands, and 19 is a pin.

Claims (1)

[Scope of utility model registration request] It consists of one half of the elongated plate formed by providing a long groove with one end open in the intermediate longitudinal direction, and the other half of the elongated plate that fits into the open end of the long groove and is pivoted with a pin. A V-shaped groove is provided along the entire length of the end faces on both sides, and a band attachment member is screwed onto the non-open end of the long groove so that it can be adjusted in and out, and the other half of the elongated plate is tensioned with springs on both end faces of the tip. A bi-folding metal fitting for a watch band, characterized by having a protrusion for hanging and taking off.