JP2542417Y2 - Watch band clasp - Google Patents

Description

The present invention relates to a clasp for a watch band.

2. Description of the Related Art There are first and second locking members attached to both ends of a watch band, wherein the first locking member includes a lock piece having a jumping-up portion integrated therewith, and a second locking member. Has a first operating member and a second operating member which are overlapped with each other and are movably opposed to each other so as to be movable in the width direction of the watch band. The first operating member includes a lock locking member for locking a lock piece. As an operation member, a middle clasp of a watch band having a raised end for pushing up the raised portion has been proposed in Japanese Patent Application Laid-Open No. 61-168302.

Since the first operation member and the second operation member are overlapped with each other, the thickness of the first operation member and the second operation member are increased, and the distance between the first operation member and the second operation member is compared because the lock piece and the jumping portion are integrated. Therefore, the width of the clasp was wide, and it could not be used for a narrow women's watch band.

A first locking member and a second locking member, wherein the first locking member is pivotally attached to the watch band;
The second locking member comprises an elastic locking piece provided on the inside of the plate and a locking release piece having a slope, and one end of the second locking member projects from a window on one side, and the other end has a slope. A first operating member that has and is urged outward in the width direction by the first pressing means, and one end protrudes from the window on the other side,
The second operating member, which is urged to one side in the longitudinal direction by the second pressing means and has a regulating portion that regulates the operation of the first operating member in a normal state, and a locking piece of the first locking member are engaged. A clasp for a watch band, comprising a locking end to be stopped, wherein the slope of the unlocking piece and the slope of the first operating member are in contact when the locking piece and the locking end are locked. It is disclosed in Japanese Unexamined Patent Publication No. Hei 1-1121420.

According to this, the first operation member can be operated only when the second operation member is operated, and when the first operation member is operated, the slope of the first operation member is changed to the slope of the unlocking piece. Is pushed up to release the engagement between the locking piece and the locking end, so that the engagement between the first locking member and the second locking member is not easily released unless an intentional operation is performed. And the first
The operation member and the second operation member slide in the same plane, so that the clasp can be made thin.

However, since the first operating member and the second operating member are urged in directions orthogonal to each other, the first operating member is slid in the width direction while sliding the second operating member in the longitudinal direction. It must be moved, which makes the operability very poor.

Also, since the locking piece is locked to the locking end only by its elasticity, if the locking piece is deformed as a result of long-term use or an external force greater than the spring force of the locking piece acts, the operating member There is a disadvantage in that the engagement between the locking piece and the locking end is easily released without operating the key.

Problem to be solved by the invention It is an object of the invention to provide a clasp for a watch band that is easy to operate, hardly comes off during use, is thin, and can be used even with a narrow width.

Means for Solving the Problems In order to solve the above problems, the present invention comprises a pair of locking members which are detachably locked, and one of the locking members has a hook-shaped locking piece and a jumping member. Are provided at different places, and the other locking member is a clasp of a watch band provided with two operating members, and the other locking member is moved in the width direction within the same plane. A first operation member and a second operation member are provided, which are opposed to each other so as to be able to approach and separate from each other, and are respectively urged outward in the width direction. A lock engagement portion that is engaged with the lock piece and is released when the operation member approaches is provided, and a push-up portion that pushes up the lifting member when the operation member is close to the second operation member is formed. The push end and the lock are located at the opposite ends of the A notch portion into which the engagement portion is fitted is formed.

When the hook-shaped lock pieces are engaged with the lock engagement portions, the pair of locking members are firmly locked, and the first operating member and the second operating member are pressed inward to approach each other. Then, the engagement between the lock piece and the lock engagement portion is released, and the push-up portion pushes up the jump-up member, so that one of the locking members floats.

By providing the first operating member and the second operating member in the same plane, the other locking member is reduced in thickness, and the opposing ends of the first operating member and the second operating member are provided on opposite sides. Since the notch portion into which the push-up portion and the lock engagement portion, which are the ends of the lock member are fitted, is formed, the width of the other locking member can be small.

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

In FIG. 1, 1 is a clasp of a watch band,
It comprises a pair of fixed locking members 2 and a rotation locking member 3 which are detachably engaged with each other.

The fixed locking member 2 includes a frame portion 4, a first operation member 5, a second operation member 6, and a cover member 7.

The frame part 4 includes a pair of parallel side frames 8, 8 'and the side frames 8, 8'.
And a connecting portion 9 connecting one end of the side frames 8, 8 '. A connecting recess 10 is formed between the other ends of the side frames 8, 8' and the connecting portion 9, and the side frames 8, 8 'are formed. A band mounting concave portion 11 is formed between one end of the connecting portion 9 and the connecting portion 9.

The first operating member 5 penetrates one of the side frames 8 so that the tip of the first operating member 5 extends into the connection concave portion 10, and the watch band 12 (the
(See the figure). Also, the second
As shown in the figure, a lock engagement portion 13 bent in an L-shape is provided substantially at the center of the inner end portion thereof.
An inclined portion 13 'is formed on the upper surface of the side edge near the side frame 8, a long hole 14 is formed along the width direction of the watch band 12, and a spring contact recess 15 is formed near the connecting portion 9 at the inner end. The notch 16 is formed near the other end of the inner end.

The second operating member 6 is slidable in the width direction of the watch band 12 in the same plane as the first operating member,
It is mounted through the other side frame 8 '. Further, the lock engagement portion of the first operation member 5 is located near the connection portion 9 at the inner end thereof.
A notch 17 corresponding to the notch 13 is formed, and a projection 18 corresponding to the notch recess 16 of the first operation member 5 is integrally provided on the opposite side of the connecting portion 9, and a width direction of the watch band 12 is provided here. An elongate hole 19 is formed along the upper surface, and the upper surface of the tip of the projection 18 is tapered to form a push-up portion 20.

The cover member 7 is, as shown in FIG.
Is a member that is incorporated into the inner periphery of the coupling concave portion 10 and covers the first and second operating members 5 and 6, and the lock engaging portion 1 on the upper surface thereof.
Insertion holes 21 and 21 ′ which are long in the width direction of the watch band 12 are formed at positions corresponding to 3 and the push-up portion 20.

Also, as shown in FIG.
On the side, a partition wall 22 is provided at a slight distance from the side wall 7 ′, and the operating member extends from the upper surface to the lower surface of the cover member 7.
Guide pins 23 and 23 'are inserted into the long holes 14 and 19 of the fifth and sixth holes, respectively.

Then, the first operating member 5 and the second operating member 6 are respectively penetrated through the side frames 8, 8 'of the frame portion 4 so as to be located in the same plane, and the outer ends thereof are connected to the side frames 8, 8'. ′, And project outward from the lock operating portion 13 of the first operating member 5.
Corresponds to the notch 17 of the second operating member 6, and the push-up portion 20 of the second operating member 6 corresponds to the notch 16 of the first operating member 5.

Further, a coil spring 24 is provided between the side wall 7 ′ of the cover member 7 and the partition wall 22 to separate the coil spring 24 from the operating members 5 and 6, and both ends of the coil spring 24 contact the spring of the first operating member 5. The recesses 15 and the cutouts 17 of the second operation member 6 are respectively brought into contact with each other, and the operation members 5 and 6 are urged outward in the width direction of the watch band 12.

In the normal state, since the coil spring 24 presses the operation members 5 and 6 outward, the guide pins 23 and 23 'are located at the inner ends of the long holes 14 and 19, but the operation members 5 and 6 are Press
The operating members 5 and 6 have guide pins 23 and 23 'with elongated holes 14 and 19, respectively.
Of the watch band 12 in the width direction until it comes into contact with the outer end of the watch band.

That is, the operating members 5 and 6 are restricted by the guide pins 23 and 23 'and cannot move in the longitudinal direction of the watch band 12,
Even in the width direction of the watch band 12, it does not move beyond the length of the long holes 14, 19.

As shown in FIG. 1, the rotation locking member 3 includes an upper lid 25,
A lock piece 27 and a jump-up member 28 are provided. The upper lid 25 has substantially the same width as the connecting concave portion 10 of the fixed locking member 2, has a convex upper surface, and has a tubular mounting portion 26 formed at one longitudinal end of the mounting piece 34 of the fixed locking member 2. A mounting wall 36 that is rotatably mounted by pins 35 is provided.

The lock piece 27 is hooked on the lock engagement portion 13 through the insertion hole 21 of the fixed locking member 2, and its tip is bent in the direction of the other side frame 8 'to form a substantially hook shape. An inclined surface 32 is formed on the lower surface of the distal end, and protrudes from the lower surface of the upper lid 25 near the other end in the longitudinal direction.

In addition, a projection 33 having a gentle surface engaging with the lower end of the insertion hole 21 is integrally provided on one side surface of the lock piece 27 by doweling or the like.

The jumping-up member 28 is a member that is inserted into the cover member 7 through the insertion hole 21 ′ of the fixed locking member 2, and has a tapered surface 29 corresponding to the push-up portion 20 at one end of one side thereof, It is mounted on the lower surface of the upper lid 25 near the band mounting portion 26.

Then, the upper lid 25 of the rotation locking member 3 is passed through the space between the pin 31 and the band mounting frame 30 which are provided near one end of the band mounting frame 30 having a substantially flat E-shape as shown in FIG. As shown in FIG. 3, the watch band 12 is attached to the other end of the band attachment frame 30, and the other end of the watch band 12 is attached to the band attachment recess 11 of the fixed locking member 2.

To engage the fixed locking member 2 and the rotation locking member 3,
The upper lid 25 of the rotation locking member 3 is rotated downward around the pin 35, and the lock piece 27 and the jumping member 28 are respectively inserted into the cover member 7 through the insertion holes 21 and 21 ′ of the fixed locking member 2. Insert. Then, as shown in FIG. 5, the inclined surface 32 of the lock piece 27 comes into contact with the inclined portion 13 'of the lock engaging portion 13, and pushes this downward inward of the watch band 12 to descend.

When the tip of the lock piece 27 passes through the lock engagement portion 13, the lock engagement portion 13 is restored outward by the elastic force of the coil spring 24 and engages with the lock piece 27. At this time, the projection 33 of the lock piece 27 snap-engages with the lower end of the side edge of the insertion hole 21.

In order to release the engagement between the fixed locking member 2 and the rotation locking member 3, when the operating members 5 and 6 are pushed inward by hand, the lock engagement portion 13 moves inward and The engagement with the lock engagement portion 13 is released. As shown in FIG. 6, the push-up portion 20 comes into contact with and pushes up the tapered surface 29 of the jump-up member 28, and the projection 33 of the lock piece 27 comes off the side edge of the insertion hole 21. Since the upper lid 25 of the dynamic locking member 3 rises slightly, it is further rotated upward by hand to fix the fixed locking member 2 and the rotation locking member 3.
It is only necessary to release the engagement with.

According to the clasp of the watch band of the present invention, the lock piece of one locking member faces the lock engaging portion of the other locking member, and it is easy to simply push down one locking member. Can be reliably engaged with the pair of locking members, and the first and second operating members can be disengaged simply by pushing the first and second operating members inward simultaneously in one operation, and the push-up portion jumps up. Since the locking member is raised by pushing up the part, the watch band can be easily removed without performing any special operation, and the operability is very good.

Further, the engagement between the pair of locking members can be released only when the two operating members are simultaneously pressed, and there is no fear that the clasp will come off unless an intentional operation is performed, and the safety is high. Furthermore, since the hook-shaped lock piece engages with the lock member to lock the pair of lock members, even if a large external force is applied, the lock can be easily released like a lock that is locked by a spring force. There is no fear that the engagement becomes loose due to the deformation of the locking portion.

In particular, since the first and second operating members are not overlapped and are disposed so as to be movably opposed in the width direction of the watch band in the same plane, the clasp is thinned, and the lock piece and the jumping-up member are used. In addition to being provided at a separate place, the opposed ends of the first and second operating members are formed with cutout portions into which the push-up portions and the lock engaging portions are fitted, so that the width of the clasp is narrow. It can also be used as a clasp of a watch band, especially a narrow watch band carried by a woman.

In addition, if the coil spring and the operation member are separated by the partition, the coil spring can be stably expanded and contracted without being displaced or coming into contact with the operation member.

[Brief description of the drawings]

FIG. 1 is a perspective view of a clasp of a watch band showing an embodiment of the present invention, FIG. 2 is a cross-sectional view of a fixed locking member, and FIG. 4 is a perspective view of the band mounting frame, FIG. 5 is a sectional view taken along line AA of FIG. 3, and FIG. 6 is a sectional view taken along line BB of FIG. is there. DESCRIPTION OF SYMBOLS 1 ... Middle fastener, 2 ... Fixed locking member, 3 ... Rotation locking member, 4 ... Frame part, 5 ... First operating member, 6 ...
Second operating member 7, cover member 8, 8 'side frame 9, connecting portion 10, connecting concave portion 11, band mounting concave portion 12, watch band 13, lock engagement Department, 13 '……
Inclined part, 14, 19 ... Long hole, 15 ... Spring contact recess, 16, 17
…… Notch, 18 …… Protrusion, 20 …… Push upper part, 21, 21 ′ ……
Insert hole, 22 ... Partition wall, 23, 23 '... Guide pin, 24 ...
Coil spring, 25 ... Top cover, 26 ... Band mounting part, 27
…… Lock piece, 28 …… Raising member, 29 …… Tapered surface,
30 …… Band mounting frame, 31 …… Pin, 32 …… Slope,
33 ... Projection, 34 ... Mounting piece, 35 ... Pin, 36 ... Mounting wall.

Claims (1)

(57) [Scope of request for utility model registration] A pair of locking members which are detachably locked, wherein one of the locking members is provided with a hook-shaped locking piece and a jumping-up member at different positions, and the other locking member is provided. In the clasp of a watch band provided with two operating members, the other locking member moves in the width direction within the same plane, and is opposed to each other so as to be close to and separated from each other. A first operating member and a second operating member biased outward in the direction are provided, the first operating member is engaged with the lock piece when the operating member is separated, and is engaged when the operating member approaches. Is provided, a push-up portion is formed on the second operating member to push up the flip-up member when the operating member is close to the operating member, and opposing end portions of the first and second operating members are provided on the second operating member. Notches are formed in each of which the push-up part and the lock engagement part are fitted. Fastener in the watch band characterized by.