JP2553992Y2 - Watch band Nakadome - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a clasp of a watch band.

[0002]

2. Description of the Related Art Applicants have previously described a locking member provided on one locking member and an operating member which is moved in the width direction and urged outward in the width direction. The operation member is provided with a lock engagement portion which is detachably engaged with the lock piece, and the operation member is locked with the other by inserting a guide pin into a long hole formed in the operation member. The middle clasp of the watch band attached to the member was actually opened 4-5421.
No. 6 was proposed. However, in this case, since the guide pin appears on the surface of the other locking member, the appearance is poor, and it takes time to incorporate the operation member.

[0003]

SUMMARY OF THE INVENTION The object of the present invention is to provide a clasp of a watch band which does not require a retaining pin for assembling the slide member, has a good appearance, simplifies assembly work, and is inexpensive. To provide.

[0004]

In order to achieve the above object, the construction of the present invention is such that a locking member is attached to the tip of one watch band, and a clasp body is attached to the tip of the other watch band. A front cover rotatably attached to the tip of the clasp main body is inserted into the hollow portion of the locking member, and then folded back to connect the two bands by locking the locking member to the clasp main body. In the middle clasp structure, two push buttons urged outward in the width direction are attached to the middle clasp body, and the two push buttons are fitted inside.
The notches overlap vertically, and the outside of the fitting notch
Engaging portion on the side edge is provided so as to face, to form a slope inwardly downwardly on the upper surface of the locking portion, the tip lower surface of the table cover, unsuitable press slope of the locking portion
The front ends of the two locking portions are pushed open and further pressed to provide a front cover locking portion that locks to the locking portion, and the two push buttons are pressed inward, whereby the The front cover locking portion is detached from the locking portion of the push button.

Furthermore, one in which front Kihyo cover is characterized in that it is lifted upward by a torsion spring mounted between the clasp main body and the front cover.

[0006]

The push clasp constructed as described above can be easily locked by simply pressing the front cover toward the clasp body, and the front cover is lifted by pressing two push buttons. The locked state of the clasp can be released.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. In FIG. 1, a centerpiece 1 of a watch band is composed of one leading piece 2 attached to one end of the watch band and another leading piece 3 attached to the other end of the watch band. 2, 3 are detachably engaged.

The front piece 2 has a front cover 8 covering the surface of the middle clasp 1 of the watch band, and a back plate 5 attached to the inner periphery of the front piece 2 in parallel with the front piece. Reference numeral 2 is formed in a shape of a letter Y in the longitudinal direction, and a band attachment hole 7 for attaching one end of the watch band is provided between one end in the longitudinal direction of the leading piece 2, and a watch band (not shown) is inserted through the band attachment hole 7. The back plate 5 is attached to one end, and one end of the back plate 5 in the longitudinal direction is fitted into the front piece 2, and the other end protrudes out of the front piece 2, and the front cover 8 is It is pivotally attached to an end. Window frames 16 are respectively formed at positions facing the outer side of the leading frame portion 2 in the lateral direction.

The back plate 5 has substantially the same width as the inside width of the leading piece 2 and, as shown in FIG. 2, one end in the longitudinal direction is bent toward the front surface side, and the cylindrical portion is opened at both ends in the width direction. An insertion notch 12 is formed at the center of the longitudinal end of the cylindrical portion 11. At the rear end in the longitudinal direction of the back plate 5, a shaft insertion portion 13 that is curved to the front surface side is formed.

Further, the left and right slide members 1 are
8a and 18b are fitted at the center of the slide member so that the inner ends overlap vertically and slidably along the width direction;
The outer ends of the slide members 18a and 18b protrude outward from the open end surface of the cylindrical portion 11 to form a push button portion 19, and a fitting notch is formed inside the push button portion 19.
The parts 20 are formed so as to overlap one another up and down and have the same height.
As shown in, the engaging portion 21 which is inclined inwardly downwardly suited
The retaining pins 6 are formed so as to fit each other, and are inserted into the retaining pin holes 9 provided in the back plate 5 at one end surfaces of the fitting notches 20 of the slide members 18a and 18b,
A spring contact portion 23 is formed between the two slide members 18.

Then, the push button portion 19 of the slide member 18 is inserted through one of the window holes 16 of the front piece 2 to be overlapped on the left and right sides, passes through the facing tube portion 11 of the back plate 5 and stops at the center position of the tube portion 11. The retaining pin 6 is inserted through the retaining pin hole 9 of the back plate 5 so that the retaining pin 6 is
The retaining pin 6 is fixedly attached to the back plate 5 at a position in contact with one end of the “0”. The left and right slide members 18a, 18b
A coil spring 24 is interposed therebetween, and both ends of the coil spring 24 are inserted into the spring abutting portion 23, and the slide member 18
Are urged in the width direction.

The front cover 8 has substantially the same width and length as the back plate 5, and a projection 14 is provided at the center of the front end of a part of the rear surface thereof, penetrating the cylindrical portion 11 through the insertion notch 12. The tip of the protruding portion 14 is bent inward in the longitudinal direction to form a hook portion 15 which is detachably engaged with the locking portion 21 of the slide members 18a, 18b, and the tip of the hook portion 15 is an inclined slope. . Further, a protruding portion 31 is provided on a rotating portion of the front cover 8, and a pin hole 17 is formed in the mounting protruding portion 31. To attach the front cover 8 to the back plate 5, the pin 25 is inserted into the shaft insertion portion 13 of the back plate 5 and the pin hole 17 of the front cover 8, and the collar 26 is fitted to a part of the outer periphery of the pin 25. A front torsion spring 27 is interposed between the collar 26 and the mounting projection 31 so as to urge the front cover 8 from the back plate 5 so as to stand up from the back plate 5 at a certain angle, and is pivotally attached to the back plate 5.

The other front piece 3 is also formed in a Y-shape, and a band mounting hole 30 is provided between one end in the longitudinal direction of the front piece 3 so that one end of the watch band can be attached thereto.

When connecting the clasp, as shown in FIG.
The front cover 8 of one of the front pieces 2 is inserted from the bottom to the top between the engagement shaft 29 and the inside of the other front piece 3 formed in the shape of the letter Y in the longitudinal direction. Is turned back, and the tip of the front cover 8 is pushed toward the back side so that the protruding portion 14 is inserted into the notch 20, and the lower surface of the hook portion 15 presses the upper surface of the locking portion 21 of each of the slide members 18 a and 18 b. , The slide member 18 against the elastic force of the coil spring 24.
a, 18b are slid outward (in the band width direction), and when the tip of the hook portion 15 passes through the locking portion 21, the sliding member 18 returns to the original position, and the locking portion 21 of the sliding member 18 is turned upside down. The engaging projections 14 of the cover 8 are engaged with each other to lock one of the leading pieces 2 and the other pieces 3.

Next, when the clasp is released, the two push button portions 19 are simultaneously pushed inward to slide the slide member 18 inward, and the hook portion 15 of the front cover 8 and the locking portion 21 of the slide member 18 are moved. Is released, the front cover 8 is flipped up by the urging force of the torsion spring 27 interposed at the pivotal connection between the back plate 5 and the front cover 8. In this state, by pulling out the front cover 8 from the engagement shaft 29 of the other front piece 3, the engagement between the one front piece 2 and the other front piece 3 is released.

[0016]

[Effect of the Invention] The watch band clasp of the present invention is formed by overlapping the center portion of the slide member, and the fitting portion is provided at the overlapped portion, so that the female cover dress type with a narrow front cover width. Has an excellent structure. Further, the assembling work is facilitated, and the cost can be reduced. Moreover, the torsion spring makes it easier to release the clasp.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a watch band clasp showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG. 1;

FIG. 3 is a sectional view taken along line BB of FIG. 1;

FIG. 4 is a perspective view of a clasp of the watch band showing the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Middle clasp of watch band 2 Front piece 3 Front piece 5 Back plate 6 Retaining pin 7 30 Band mounting hole 8 Front cover 9 Retaining pin hole 11 Cylindrical part 12 Insert notch 13 Shaft insertion part 14 Projection 15 Hook part 16 Window hole 17 Pin hole 18a, 18b Slide member 19 Push button part 20 Fitting notch part 21 Locking part 23 Spring contact part 24 Coil spring 25 Pin 26 Collar 27 Torsion spring 29 Engagement shaft 31 Mounting projection

Claims (2)

(57) [Scope of request for utility model registration] 1. A locking member is attached to a tip of one of the watch bands, a clasp body is attached to a tip of the other watch band, and a front cover rotatably attached to a tip of the clasp body is attached to the locking member. In a clasp structure for connecting two bands by inserting into the hollow portion of the member and turning back to lock the locking member to the clasp body, the clasp body is attached to the clasp body outward in the width direction. Attach two push buttons which are biased, said two push buttons having an inner mating
The notches overlap vertically, and the outside of the fitting notch
Engaging portion on the side edge is provided so as to face, to form a slope inwardly downwardly on the upper surface of the locking portion, the tip lower surface of the table cover, unsuitable press slope of the locking portion
The front ends of the two locking portions are pushed open and further pressed to provide a front cover locking portion that locks to the locking portion, and the two push buttons are pressed inward, whereby the A clasp for a watch band, wherein a locking portion of the front cover is detached from a locking portion of the push button. 2. A tongue attached between a clasp main body and a front cover .
The clasp of the watch band according to claim 1, wherein the front cover is lifted up by a spring .