JP3007850U - Folding door type Nakadome for watch band - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention absorbs processing errors and installation errors between the opening and closing plate on one side and the temporary fixing pipe, and smoothly hangs them off, without damaging the cuffs and the opening and closing plate on the other side is also one side. The purpose of the present invention is to provide a double-door type clasp for watch bands that can be freely deployed 180 degrees like the opening and closing plate of. According to the present invention, an intermediate frame 1 and opening / closing plates 2 and 3 are pivotally attached to both sides of the intermediate frame 1, a box 4 for one-touch opening / closing is attached to the opening / closing plate 3, and an intermediate plate 5 of the intermediate frame 1 is attached. Top plate 6 on top
And a pin 8 and a pin 8 which are attached to one side of the upper plate 6 so as to be capable of fine movement, while a circular projection and removal protrusion 7 having a circular shape in a plan view is planted on the central portion of the upper plate 6. To form a temporary fixing pipe 9 which is adapted to move finely by the contact of the opening / closing plate 2, and the pressing plates 11a, 11b having the U-shaped groove portions 10a, 10b are mounted in the box 4 and the tip of the opening / closing plate 2 is attached. The temporary fixing pipe 9 on the inner surface of the part
There is a semicircular recess-shaped hanging portion 12 for hanging and unhooking, which is a double-door open type Nakadome for a watch band.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a double door type clasp for a watch band, and more specifically, to a sophisticated improvement of each substructure.

[0002]

[Prior art]

 There is Japanese Utility Model Laid-Open No. 63-17613 for the double-door type clasp, and Japanese Utility Model Laid-Open No. 1-1112712 for the hook. The former is a horizontally long underframe with a pin for pipe insertion in the transverse direction of the central part, an open / close plate with one end pivotally attached to each of the longitudinal ends of the underframe, and both open / close plates. A double-sided clasp metal fitting for a timepiece band, characterized in that a cutting groove is provided on the back surface of the end portion, and one side surface of each of the pins and a hanging piece for elastically breaking off are formed inside the cutting groove. On the other hand, the latter is provided with a latching claw on one side, and on the other side is a push operation part formed by stacking several members for one-touch latching and disengagement of the above-mentioned latching claw and a latch with a latch hole with a latching wall. An improved one-touch type clasp is characterized in that, in the one-touch type clasp that is mounted, the stopper plate is covered with a cover member composed of a top plate and a side plate.

[0003]

[Problems to be solved by the device]

 However, in Japanese Utility Model Laid-Open No. 63-17613, when the open / close plate is folded, the round pin of the pipe is used to hang the detachable piece of the open / close plate, but there is a slight gap between the round pin and the open / close plate. Since machining errors and mounting errors are unavoidable, there is a problem that the round pin for pipe insertion and the hooking piece come into contact with each other with a strong force, causing wear and slackening at an early stage. In addition, as in Japanese Utility Model Laid-Open No. 1-111212, when the hook has a hook shape that bends to one side, there is a problem that the cuffs of the wearer are hooked and broken.

[0004]

[Means for Solving the Problems]

 In the present invention, an intermediate frame 1 and opening / closing plates 2 and 3 are pivotally mounted on both sides of the intermediate frame 1, and a box 4 for one-touch opening / closing is attached to the opening / closing plate 3 and is placed on an intermediate dish plate 5 of the intermediate frame 1. The plate 6 is fitted, a hanging projection 7 having a circular shape in a plan view is planted on the central portion of the upper plate 6, and a pin 8 is inserted into one side of the upper plate 6 for fine movement. A temporary fixing pipe 9 which fits into the pin 8 and is adapted to move finely by the contact of the opening / closing plate 2 is formed, and pressing plates 11a, 11b having U-shaped groove portions 10a, 10b are mounted in the box 4 to open / close the opening / closing plate. On the inner surface of the tip portion of 2, there is provided a semi-circular recess-shaped hooking / unhooking part 12 for hooking / unhooking the temporary fixing pipe 9, and two pivot parts 14a, 14b in the front and rear are provided between the opening / closing plate 3, the box 4 and the mounting band 13b. In order to solve such a problem, the opening / closing plate 3 is provided so as to be freely developed together with the opening / closing plate 2.

[0005]

[Action]

 According to the present invention, when the opening / closing plate 2 is pivoted on the intermediate frame 1 to fold it and folds it down, the hanging portion 12 hits the temporary fixing pipe 9 and the temporary fixing pipe 9 is finely moved together with the pin 8 to finely move the hanging portion. In order to directly face 12 with each other, the engaging / disengaging portion 12 and the temporary fixing pipe 9 are evenly contacted with each other over the entire length and are engaged with each other.

Next, when the opening / closing plate 3 is rotated and tilted down, the U-shaped fitting portions 10a and 10b stop the latches 7 having a circular shape in plan view from both sides.

Further, when the opening / closing plate 3 is deployed and rotated, it has two front and rear pivot parts 14a and 14b forming a two-step joint with the mounting band 13a, so that the other opening / closing plate 2 is 180 The band loop can be expanded freely over time, and when it is placed on a table or the like, a stable and continuous shape can be obtained.

[0008]

【Example】

 Embodiments will be described below with reference to the drawings.

Opening and closing plates 2 and 3 are foldably attached to both sides of a horizontally long intermediate frame 1 so as to be unfoldable. The opening / closing plate 2 is provided with a semicircular recessed hanging portion 12 on the inner surface of the front end thereof, and the one-touch opening / closing box 4 is mounted on the outer surface of the other end of the opening / closing plate 3. An intermediate plate 5 having an upper half cut out is provided at the center of the intermediate frame 1, and the intermediate plate 5 is fitted on the intermediate plate 5 and is caulked with pins or screws 6a, 6b. A projecting lug 7 is planted, and a temporary fixing pipe 9 is formed at the end side on the side of the opening / closing plate 2 which is slightly moved by the contact of the opening / closing plate 2. The temporary fixing pipe 9 is loosely inserted into the cylindrical portions 6c and 6d on both sides extending from the upper plate 6, and both ends thereof are contacted with the intermediate frame 1 so as to be finely moved. It consists of a temporary fixing pipe that is fitted to the outer circumference of the part so that it can be slightly moved.

The tip of the opening / closing plate 2 is pivotally connected to the half watch band 13a so as to rotate, and the tip of the opening / closing plate 3 is connected to the front and rear pivot parts 14a and 14b via the T-shaped member 3a. It is rotatably connected to the box 4 and the other half of the watch band 13b.

As shown in FIGS. 5 (a) and 5 (b), the one-touch opening / closing box 4 is fitted to the upper box 15 and the window holes 17 and 17 of the side walls 16a and 16b of the upper box 15 while being aligned with each other. Pushing plates 11a and 11b having U-shaped groove portions 10a and 10b for enclosing and enclosing the box 18 and the inner box 18 from both sides, respectively, which enclose the projecting and detaching projection 7 circular in plan view, are inserted. A part of the push plates 11a and 11b is projected outward from the window hole 17 so that push operation can be performed.

In the figure, 19a and 19b are coil springs that push the push plates 11a and 11b in the opening direction (the sandwiching direction of the hooking and detaching protrusion 7), and 20a and 20b are the springs of the push plates 11a and 11b that are freely worn. Screws, 21 are viewing holes of the U-shaped groove portions 10a and 10b, and 22 is an opening portion for giving a margin on the hooking and detaching protrusion 7.

When folding the clasp of the present invention, the opening / closing plate 2 is first laid down on the intermediate frame 1 and rotated to hook the hooking / releasing portion 12 provided on the rear surface of the tip end to the temporary fixing pipe 9, and then opening / closing. The plate 3 is tilted and rotated on the intermediate frame 1. The temporary fixing pipe 9 is loosely supported by the tubular portions 6c and 6d, and is formed so as to be finely moved by being fitted into the pin 8 and the outer periphery of the intermediate portion of the pin 8 which is finely moved. When hitting the temporary fixing pipe 9, the temporary fixing pipe 9 slightly moves in response to the contact and directly faces the catching and releasing part 12, so that the catching and releasing part 12 and the temporary fixing pipe 9 slightly move during processing and mounting. Even if there is an error in, it will be absorbed and the entire length will be applied at the same pressure. When the open / close plate 3 is rotated on the intermediate frame 1, the circular hook-and-hook projection 7 is covered with the U-shaped grooves 10a and 10b through the viewing hole 21, and the upper surface of the hook-and-break projection 7 is pushed by sliding. The U-shaped groove portions 10a and 10b are positioned at the neck portion of the hooking and detaching protrusion 7 by the inward movement of the push plates 11a and 11b accompanied by the contraction of the coil springs, and the push plates are stretched again by the coil springs 20a and 20b. The U-shaped groove portions 10a and 10b hold the protrusion 7 by the return movement of 11a and 11b. Further, the tip end of the temporarily fixed opening / closing plate 2 is also held down by the tip end of the upper box 15.

When unfolding and unfolding, the outer end portions of the push plates 11a and 11b are pushed as shown in FIG. 5 (b). Then, the push plates 11a and 11b move inward toward each other to open the U-shaped groove portions 10a and 10b to release the hooking / disengaging protrusion 7, and thus the upper box 15 is opened while pressing the push plates 11a and 11b. It turns. The opening / closing plate 3 and the opening / closing plate 2 are sequentially expanded to expand the band loop. It should be noted that since the hanging projection / disengagement protrusion 7 is sandwiched between the two U-shaped groove portions 10a, 10b, the two pushing plates 11a, 11 are not pushed at the same time, that is, one of the pushing plates is something. Even in the unlikely event of being pushed, there is no danger that Nakadome will be unfastened and come off. Since the opening / closing plate 3 is connected to the box 4 and the other half of the watch band 13a by the two front and rear pivot parts 14a and 14b, it abuts on the box 4 and the watch band 13b as shown in FIG. Like the opening and closing plate 2, it can be freely deployed and rotated 180 degrees without being obstructed, and the band wheel can be expanded further than before, and it can be stably placed on a table or the like.

[0015]

[Effect of device]

 Since the present invention is configured as described above, when the opening / closing plate 2 is folded, even if there is a processing error or a mounting error with the temporary fixing pipe 9, the temporary fixing pipe 9 is adapted along with the pin 8 as the core. Since it slightly moves to directly face the catching and releasing part 12, the catching and releasing part 12 and the temporary fixing pipe 9 are hooked with a uniform pressure over the entire length, and it is possible to eliminate slackness due to excessive frictional wear of a part. Produces the effect.

Since the hooking / disengaging protrusion 7 provided on the center portion of the intermediate frame 1 has a circular shape in a plan view, there is an effect that the damage caused by catching the cuffs or the like of the wearer is eliminated.

Since the opening / closing plate 3, the one-touch opening / closing box 4 and the other half of the watch band 13b are connected by the front and rear two pivot portions 14a, 14b, the opening / closing plate 3 is 180 degrees like the opening / closing plate 2. The effect is that it can be freely rotated to expand the band loop and flatten it so that it can be placed on a table or the like.

[Brief description of drawings]

FIG. 1 is a perspective view showing a developed state.

FIG. 2 is a perspective view showing a state in which some members are separated from each other.

FIG. 3 is an enlarged cross-sectional view of a temporary fixing pipe portion.

FIG. 4 is a partial side view showing a state in which the opening / closing plate 2 is hooked.

FIG. 5 is a cross-sectional plan view showing the structure and operation of the box 4 portion for one-touch opening / closing, (a) is a normal state (when the fitting protrusion is not clamped), and (b) is a U-shaped groove portion by pushing the push plate. 10a, 10b
It shows a state in which is opened.

[Explanation of symbols]

 1 is an intermediate frame 2.3 is an opening / closing plate 3a is a T-shaped member 4 is a box for one-touch opening / closing 5 is an intermediate plate 6 is an upper plate 6a, 6b is a screw 6c, 6d is a cylinder portion 7 is a hook-and-drop protrusion 8 Is a pin 9 is a temporary fixing pipe 10a, 10b is a U-shaped groove 11a, 11b is a push plate 12 is a hanging part 13a is a half watch band 13b is the other half watch band 14a, 14b is a pivot part 15 is an upper box 16a, 16b is a side wall 17 is a window hole 18 is a middle box 19a, 19b is a coil spring 20a, 20b is a push plate 11a, 11b is a loose screw 21 is a see-through hole 22 is an open hole

Claims (2)

[Scope of utility model registration request] 1. An intermediate frame 1 and opening / closing plates 2 and 3 pivotally attached to both sides of the intermediate frame 1, and a box 4 for one-touch opening / closing is attached to the opening / closing plate 3 on an intermediate plate 5 of the intermediate frame 1. An upper plate 6 is fitted to the upper plate 6, a hanging projection 7 having a circular shape in plan view is planted on the central portion of the upper plate 6, and a pin 8 is inserted into one side of the upper plate 6 so as to be finely movable. And a temporary fixing pipe 9 which is fitted into the pin 8 and finely moves by contact with the opening / closing plate 2, and push plates 11a and 11b having U-shaped groove portions 10a and 10b are mounted in the box 4 to open and close the opening and closing plates. A double-door type clasp for watch bands, characterized in that a semicircular recessed hanging portion 12 is provided on the inner surface of the front end of the plate 2 for hooking and unhooking the temporary fixing pipe 9. 2. The front and rear pivot parts 14a, 14b are provided between the opening / closing plate 3, the box 4 and the mounting band 13b so that the opening / closing plate 3 can be freely deployed together with the opening / closing plate 2.
Double-door type Nakadome for the listed watch band.