JPH0737527Y2 - Nakadome for watch band - Google Patents

Description

[Detailed description of the device]

[0001]

This invention relates to a clasp for a watch band.

[0002]

2. Description of the Related Art Nakadome of this type of separate type for a watch band is described in Japanese Utility Model Publication No. 1-262555. The publication describes one half metal fitting formed by extending a hanging shaft on the tip of a U-shaped member and the other half metal fitting consisting of a U-shaped member, a lower member and a lid.

[0003]

However, since the latching claw that is hung vertically on the lid of the above publication is in pressure contact with the protrusion provided on the lower member to latch it, the latching of the lid when unlocked There is a problem in that pulling and turning is not easy and there is a risk that the fingernail on which the finger is placed may be damaged.

[0004]

SUMMARY OF THE INVENTION The present invention comprises a frame fitting having a frame, and a base member and an opening / closing plate which opens and closes in and out of the frame with a pivoting part sandwiched between the front part of the base member. In a separate clasp for a watch band, which is formed by attaching and forming a hanging metal fitting, a push button is projected on one side or both sides of a base member of the hanging metal fitting, and the push button is arranged in the transverse direction following the push button. An angular shaft member that expands and contracts with a spring bar to be provided is provided, and a hooking portion formed at the tip of the angular shaft member is positioned below a window hole provided in the middle of the upper surface of the base member. A hook is provided on the inner surface for hooking and unhooking the hook, and a tension spring for flipping up the open / close plate when the hook is released from the lock is provided on the open / close plate or the rotating portion. It is intended to solve such a problem by configuring Nakadome for a band.

[0005]

The function of the clasp of the present invention is that it is attached to the watch band. When the push button is pushed with one hand of the free hand, the square shaft member compresses and moves the spring rod, and the clasp is used. When the hook is released, the tension spring provided on the opening / closing plate or the rotating part gives the momentum to flip up the opening / closing plate to create a finger-engaging space. Is unfolded by unfolding the metal fittings.

When the metal fittings are fastened together, the opening / closing plate is passed through the frame and then the opening / closing plate is tilted and closed on the base member. The latching claw enters through the window hole and pushes the latching portion to move to the latching position, where it is latched by the return movement of the latching portion to fasten the metal fittings.

In this way, according to the present invention, the clasp for the watch band can be quickly released and refastened by one-touch operation without damaging the fingernail with one hand.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments will be described below with reference to the drawings.

As can be seen in FIG. 4, the frame fitting 2 shown in FIG. 1 is formed by arranging side plates 2b and 2c and a shaft member 2d between the side plates, and forming the base end portions of the side plates 2b and 2c by half. The watch band 1a is fitted to the end of the watch band 1a and is fixed by a shaft. Two
Reference numeral a is a frame for inserting and removing the opening / closing plate 6 of the hanging fitting 3, which will be described later.

The metal fitting 3 is attached to one end of the other half of the watch band 1b.
Install. As shown in FIG. 4, the hanging metal fitting 3 is composed of a base member 4 and an opening / closing plate 6 attached to the tip of the base member 4 so as to rotate.

As shown in FIG. 5, the base member 4 is formed by bending a half of a base plate 11 provided with a tubular portion 5 for attachment at a front end thereof.
A square tube portion 12 having a window hole 12a provided in the middle of the upper surface is formed on the upper side, and the square tube portion 13 having an opening on both sides is surrounded by mounting the square frame portion 12. The base end of the frame member 13 is a watch band. The push buttons 7a and 7b are projected from the openings on both sides of the frame member 13 by fitting them to one end of the frame member 1b.
b, the angular shaft members 9a, 9a provided with the hooking portion 8 at the tip thereof.
b is housed in the rectangular tube portion 12, the spring rod 10 is stretched between the angular shaft members 9a and 9b, and the latching portion 8 is positioned below the window hole 12a. The latching portion 8 is formed by making the upper surface into a circular curved surface and denting the lower portion of the circular curved surface into a hook shape so that the latching claw 15 to be described later slides and pushes the latching portion 8 to enter and latch. To do. In FIG. 5, reference numeral 14 is a notch provided at both ends of the rectangular tube portion 12, which is for accommodating the angular shaft members 9a and 9b and then folded to prevent the angular shaft members 9a and 9b from being pulled out.
As shown in FIG. 5, the spring rod 10 is formed by inserting small-diameter shafts on both sides of the intermediate pipe so that the small-diameter shafts are not pulled out, and inserting coil springs between the small-diameter shafts. When pressed, the coil spring is compressed and the small-diameter shafts at both ends are contracted, and when released, the coil spring is expanded to return to its original position.

A shaft portion 5 is formed by engaging a cylinder portion 5b provided on a spring plate 17 integral with an opening / closing plate 6 with a cylinder portion 5 for mounting a tip portion of a floor plate 11.
A is stopped to form a rotating portion, and the opening / closing plate 6 is connected with the rotating portion sandwiched.

As shown in FIG. 4, the spring plate 17 is fitted to a paragraph surface 6a provided in the middle of the inner surface of the opening / closing plate 6 so that the latching claw 15 is bent and formed at the front end, and the opening / closing plate 6 is attached to the base side. A leaf spring 16 for flipping up is formed by cutting.

Therefore, the separate type one-touch clasp of the present invention for the watch band is such that the opening / closing plate 6 of the hanging metal fitting 3 is inserted into and removed from the frame eye 2a of the frame metal fitting 2 to be attached / detached.
When the push buttons 7a and 7b are pressed in the connected state, the spring rods 10 are compressed and the angular shaft members 9a and 9b move toward each other to open and move the hooking portion 8 at the inner end.
Will be unhooked. Then, the leaf spring 16 for flipping up, which was pressed against the surface of the base member 4 by the hooking, springs up the open / close plate 6 to the position indicated by the solid line in FIG. 3 to create a gap into which the fingernail can be placed. The opening / closing plate 6 can be deployed in the direction of the provisional line by putting a fingernail on it.

The opening / closing plate 6 thus developed is attached to the frame 2a.
The metal fittings 2 and 3 can be disengaged by further removing the metal fittings. When the metal fittings 2 and 3 are re-fastened, the open / close plate 6 is closed.
It is passed through a and is tilted and rotated on the base member 4. Then, the latching claw 15 pushes the latching part 8 while sliding onto the latching part 8 through the window hole 12a to enter a predetermined position, and is latched by the returning movement of the latching part 8. The metal fittings 2 and 3 will be fastened.

Thus, the fastening and unfastening of the metal fittings 2, 3 can be quickly performed by one-touch operation with one hand and without damaging the fingernail.

Although the metal fittings 2 and 3 are small in size for a watch band, the spring bar 10 is arranged in the transverse direction of the base member 4 and the latching portion is provided by the constant expansion and contraction of the spring bar. 8 always moves within the width required for hooking and unhooking the hooking pawl 15.

FIG. 6 shows an example in which a leaf spring 16 for flipping up is separately formed and attached to the opening / closing plate 6.

FIGS. 7 to 8 show an example in which the angular shaft members 9a and 9b are assembled in series with the spring rod 10 interposed therebetween, and one end of the floor plate 11 is fixed to the connecting plate 4a of the base member 4 by winding. . Reference numeral 18 is a fitting plate for supporting the square shaft members 9a and 9b. In addition, FIGS. 9 to 10 show an example in which one angular shaft member is assembled so that the push button 7 is provided only on one side. In this case, the latching portion 8 and the latching claw 15 are provided only on one side.

In FIG. 11 and below, two long holes 19 are provided in the floor plate 11, and screws or press-fitting pins 20 to be attached to the lower surfaces of the square shaft members 9a, 9b are fitted into the long holes 19 to fit the square shaft members 9a, 9b.
9b is a coil spring 16a shown in FIG. 16, a coil spring 16b surrounded by a cylinder, a coil spring 16b surrounded by a cylinder, and an end cylinder. An example is shown in which one of the leaf springs 16c formed with the wing portions for flipping up is selected by extension of both ends and fitted into the shaft 5a.

In this way, the coil spring 16a and the like are connected to the shaft 5
When it is attached to a and both ends are straddled against the opening / closing plate 6 and the floor plate 11, the opening / closing plate 6 will be flipped up to the temporary line position in FIG. 3 when the latching claw 15 is released.

[0022]

As described above, according to the present invention, when the push buttons provided on both sides or one side of the base member of the hanging fitting are pushed,
The spring rod is compressed to move the latching portion to release the latching of the latching claw, and at the same time, the tension spring springs up the open / close plate to create a finger-engageable gap between the base member and the open / close plate. By putting the fingernail in the gap and deploying the opening / closing plate, there is an effect that the metal fittings can be quickly released with one hand by one-touch operation without damaging the fingernail.

Even when fastening the metal fittings, the latching claw pushes and moves the latching portion by a one-touch operation of simply tilting and closing the opening / closing plate passed through the frame to quickly enter and latch and fasten the metal fittings. Produces the effect of

Despite the fact that the hook metal fitting is extremely small for a watch band, a spring bar that surely expands and contracts is adopted, and the spring bar is arranged in the transverse direction of the base member so that the hooking portion is This brings about an effect that the hook can be moved with a width sufficient to hang it.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment in a connected state.

FIG. 2 is a vertical sectional front view of the same.

FIG. 3 is a vertical cross-sectional view of the same when unfastened.

FIG. 4 is a perspective view of the same when separated.

FIG. 5 is a perspective view showing a base member separated for each constituent member.

FIG. 6 is a view showing another example of spring plates for splashing.

FIG. 7 is a perspective view showing an example in which the push-button square shaft members of the second embodiment are arranged in series.

FIG. 8 is a perspective view of each member.

FIG. 9 is a perspective view showing a third embodiment in which a push button is arranged on one side in a state before assembly.

FIG. 10 is a perspective view of each member.

FIG. 11 is a perspective view showing a fourth embodiment in a developed state.

FIG. 12 is a perspective view showing a state before assembling the base material of the same.

FIG. 13 is a perspective view of each member.

FIG. 14 is a vertical cross-sectional view showing the same when the button is pressed.

FIG. 15 is a perspective rear view showing the button in the released state.

FIG. 16 is a perspective view showing an embodiment of the spring of the same.

[Explanation of symbols]

 1a, 1b is a watch band 2 is a frame fitting 2a is a frame 2b, 2c is a side plate 2d is a shaft member 3 is a fitting fitting 4 is a base member 5 is a tubular portion 5a is a shaft 6 is an opening / closing plate 7, 7a, 7b is pushed Button 8 is a latching part 9a, 9b is a square shaft member 10 is a spring rod 11 is a floor plate 12 is a square tube part 12a is a window hole 13 is a U-shaped frame member 14 is a notch 15 is a latch claw 16 is a plate for flipping up The springs 16a are the same, the coil springs 16b are the same, the coiled coil springs 16c are the same, and the leaf springs 17 are spring plates 18 are the fitting plates 19 are the long holes 20 are the square holes. Shaft member removal prevention screw

Continuation of front page (56) Reference JP-A-3-198804 (JP, A) Actually opened 52-71570 (JP, U) Actually opened 62-33706 (JP, U) Actually opened 1-112709 (JP , U) Actual opening Sho 58-118924 (JP, U) Actual opening Sho 50-82266 (JP, U) Actual public Sho 31-1483 (JP, Y1) Actual public Sho 40-2962 (JP, Y1) Actual public 5-29607 (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. A frame metal fitting having a frame, and a hook metal fitting formed by mounting a base member and an opening / closing plate which opens and closes on and off the frame with a pivoting portion sandwiched between the base member and the tip of the base member. In a separate type clasp for a watch band consisting of, a push button is provided on one side or both sides of the base member of the fitting, and a spring rod arranged in the transverse direction is sandwiched between the push button. An angular shaft member that expands and contracts is provided, and a hooking portion formed at the tip of the angular shaft member is located below a window hole provided in the middle of the upper surface of the base member, and the hooking portion is formed on the inner surface of the opening / closing plate. For a watch band, which is provided with a latching claw for hanging on and off, and a tension spring for flipping up the opening / closing plate when the latching claw is released from the opening / closing plate or the rotating portion. Nakadome.