JP2001258619A - Intermediate clasp structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an intermediate clasp structure for band by which the adjustment of the band length or the replacement of the band of a wrist watch or a bracelet can be performed by a user at any place without going to a store or, without separately preparing or carrying a tool. SOLUTION: At the base section 21 of the tool 20, a protuberance 22 for a driver and a protuberance 23 for pushing out a spring rod are formed. At the same time, the spring rod 30 is press-bonded and fixed to a bearing section 25. And, the spring rod 30 is engaged with a connecting hole 11a which is drilled on the side wall 11A of a front lid 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clasp structure of a band represented by a wristwatch, and more particularly to a band length adjusting tool.

[0002]

2. Description of the Related Art Conventionally, when adjusting the length of a band such as a wristwatch or a bracelet as an accessory, or replacing a band, a user usually goes to a watch store or a jewelry store to perform the operation. In addition, when performing the adjustment work by the user himself, a tool is separately prepared and performed. For example, it is a flathead screwdriver used for a connecting pin or a special pushing tool for pushing out a spring bar.

[0003]

However, in the above-mentioned conventional example, when the length of the band is adjusted or the band is replaced, it cannot be performed immediately without the above-mentioned flathead screwdriver or the pushing tool. Users who did not provide or carry a flathead screwdriver or extrusion tool had no choice but to take their watches and bracelets to watch and jewelry stores. Therefore, there was a problem that the band length could not be adjusted or the band could not be replaced immediately when the user needed it.

[0004] The present invention has been made in view of the above-mentioned conventional problems, and the object thereof is to avoid visiting a store and preparing or carrying tools separately. Another object of the present invention is to provide a buckle structure that can be used immediately when a user needs to adjust the length of the band or replace the band.

[0005]

In order to achieve the above object, the clasp structure of the band according to the present invention has a front cover such as a two-fold clasp, a three-fold clasp, or a double clasp. In the middle clasp, a tool is disposed and fixed to the inner surface of the front cover via a spring bar.

With this configuration, when the user needs to adjust the length of the band or replace the band without separately preparing or carrying a flathead screwdriver or an extrusion tool, it is possible to immediately respond.

Further, the spring bar is fixed to band length adjusting holes formed on both side surfaces of the front cover.

With this configuration, the tool can be fixed to the front cover without adding a special drilling process for fixing the tool to the front cover or the clasp body.

[0009] Further, the tool is characterized in that the tool is disposed and fixed on the inner surface of the front lid in a storage space between the locking portion engaging with the clasp main body and one of the bands.

[0010] With this configuration, the space for accommodating the tools can be accommodated in the existing space and secured without specially securing the space for the front lid or the clasp body.

Further, the tool has a cylindrical bearing portion through which the spring bar is inserted, and a spring portion which presses and fixes the spring bar to the bearing portion.

With this configuration, not only the work of assembling the tool main body and the spring bar can be easily performed, but also the tool can be manufactured at low cost because the number of components is minimized.

[0013] The tool has an L-shaped protrusion for attaching and detaching the spring bar from the front cover with a finger or a claw. The protrusion has a spring bar coaxially with the bearing. Characterized in that a hole through which the hole is inserted is formed.

With this configuration, when attaching / detaching the tool from / to the front lid, it is possible to easily attach / detach with a finger or a claw without requiring a special tool.

Further, the tool has at least one of a driver function and a band connecting pin removing function.

With this configuration, it is possible to immediately respond to at least one of the operations of adjusting the length of the band and replacing the band.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 5 show a first embodiment of a clasp structure according to the present invention. FIG. 1 is a side view showing a wristwatch using a tri-folded clasp according to the first embodiment of the present invention,
FIG. 2 is an exploded perspective view of a connecting pin for connecting the wristwatch and the band, FIG. 3 is a partial perspective view showing a stored state of the tool, and FIG.
FIG. 4A is a perspective view showing a tool, and FIG.
FIG. 5A is a cross-sectional view taken along the line AA of FIG. 5A, showing a state in which a tool is used as a connecting pin for connecting the leading can and the band in the first embodiment of the present invention. Perspective view, FIG. 5
(B) is a perspective view showing a state where a tool is used for pushing out a spring bar of a connecting piece.

As shown in FIG. 1, a wristwatch 1 having a three-folded clasp has a band 4 disposed between a pair of leading cans 3 of a watch body 2 and a pair of concentrically pierced holes. The connecting pin 5 is connected to the connecting hole 3a of the leading can 3 and the connecting hole 4a of the tip piece of one of the bands 4 so as to be rotatable.

Further, as shown in FIG.
Is divided into a male pin 6 and a female pin 7. Male pin 6
Consists of a head 6A having a groove 6C on the outer end face and a male screw 6B. Similarly, the female pin 7 includes a head 7A having a groove 7C provided on the outer end surface and a female screw portion 7B. The male pin 6 and the female pin 7 are
B and the female screw portion 7B are screwed into the male and female to form the connecting pin 5.

Next, as shown in FIG.
Is connected by a spring bar 9 to a connecting piece 8 for adjusting the length of the band provided at the rear end and a clasp 10 which is a three-fold clasp. The middle clasp 10 houses a front lid 11 having a substantially U-shape in cross section in the short direction of the band, and a push middle clasp mechanism 12 therein. The push clasp mechanism 12 is the same mechanism as that shown in FIG. 15 of Japanese Patent Application Laid-Open No. 10-192014, which is already known, and therefore detailed description is omitted.

That is, the push buckle mechanism 12 is roughly composed of a pair of push buttons which protrude outward from the windows of the pair of side walls 11A, which are both side surfaces of the front lid 11, and which can slide in the short direction of the band. An elastic member for urging the push button outward is included in a corner-shaped case, and the push button is installed in the pair of side walls 11A via the push button.

A plurality of connecting holes 11a, which are holes for fixing one band 4 and adjusting the length of the band 4, are formed in a pair of side walls 11A on both sides of the front cover 11 so as to face each other. A tool 2 is inserted into an unused connection hole 11a through a spring bar 30 in the connection hole 11a on the inner surface of the front lid 11.
0 is fixed. Therefore, the tool 20 is arranged and fixed on the inner surface of the front cover 11 in the storage space 15 between the push buckle mechanism 12 which is a locking portion that engages with the buckle main body and the one band 4.

The tool 20 is shown in FIGS. 4 (a) and 4 (b).
As shown in FIG. 5, the base 21 has a substantially T-shape in plan view. A protrusion 22 for a driver and a protrusion 23 for pushing out a spring bar are formed at one end of a base 21. As a bearing, an L-shaped protrusion having a bearing hole 24 a formed therein is formed as a bearing portion 24. Further, a cylindrical bearing portion 25 through which the spring bar 30 is inserted is formed on the outer portion of the spring bar pushing projection 23 so as to face the bearing portion 24. Further, the bearing portion 25 includes
A spring portion 25a, which is formed in a slit shape and presses and fixes the spring bar 30, is integrally provided.

As shown in FIGS. 5A and 5B, the driver projection 22 of the tool 20 is provided with a head of the connecting pin 5 used for connecting the watch main body 2 and one of the bands 4. It is inserted into one of the grooves 6C, 7C formed in the portions 6A, 7A and used as a driver. Further, the spring rod pushing projection 23 is provided with a spring rod 9 or a pin connecting the connecting piece 8 for adjusting the length of the band provided in the rear end direction of one of the bands 4 inward from the outside of the connecting hole 8a. And used as a spring bar 9 or a pin. Accordingly, the protrusion 22 for the driver and the protrusion 23 for pushing out the spring bar formed in parallel with one end of the base 21 form a clearance S which is a sufficient gap so as not to interfere with other members.

As shown in FIG. 4B, the internal structure of the spring bar 30 is generally known. For example, the spring bar 30 has the same structure as the spring bar of FIG. 3 described in Japanese Patent Application Laid-Open No. H10-192014. is there. That is, the spring rod 30 has stoppers 35A and 35B, which are flanges, and engagement protrusions 32A and 32B at both ends of the cylindrical body 31.

The above-mentioned spring bar 30 is inserted into the bearing hole 24a of the bearing portion 24 of the tool 20 and the bearing portion 25, and
5 is pressed and fixed by the spring portion 25a. At this time, it is desirable to mark an arrow on the engagement protrusion 32A side of the base 21. When the tool 20 is used,
This is to indicate the direction in which the bearing portion 24, which is an L-shaped projection, is slid together with the spring rod 30 fixedly pressed against the engagement projection 32A having a long sliding stroke when the tool 20 is removed from the tool. .

Next, as shown in FIG. 1 and FIG.
The connection hole 11a drilled in the side wall 11A of the inside has a connection portion 3 at one end of a middle plate 36, which is a main component of the three-folded clasp.
6 a are connected by a spring bar 9. Further, the middle plate 36
Is connected to a connecting portion 37a at one end of the outer plate 37.
And a spring bar 9. The outer plate 37 is provided with a locking projection 12A that locks to the push buckle mechanism 12, which is a locking portion.

As shown in FIG. 1, the connecting portion 37b at the other end of the outer plate 37 is connected to a connecting piece 8 provided at the end of the other band 40 by a spring bar 9. The other end of the other band 40 is disposed between the pair of leading cans 3 of the timepiece main body 2, and the connecting hole 3 a of the pair of leading cans 3 pierced concentrically and the other side of the other band 40. The connecting pin 5 is connected to the connecting hole 40a of the tip piece and is rotatably mounted. This connection structure is the same as the connection structure of the one band 4 described above. And the push clasp mechanism 12
And the locking projection 12A, the middle clasp 10, the middle plate 36 and the outer plate 3
7 is locked by folding.

Next, a second embodiment of the clasp structure according to the present invention will be described with reference to FIGS.
In the second embodiment, the same components are denoted by the same reference numerals and description thereof is omitted to avoid duplication with the above-described first embodiment. FIG. 6 is a side view showing a wristwatch using a double door clasp according to the second embodiment of the present invention, and FIG. 7 is a partial perspective view showing a stored state of a tool.

As shown in FIG. 6, in a wristwatch 50 having a double clasp, similarly to the first embodiment, one band 4 can be rotated by a connecting pin 5 between a pair of leading cans 3 of a timepiece body 2. Attached to. Next, one band 4
Is a connecting piece 8 provided in the direction of the rear end portion and a middle clasp 1 serving as a clasp.
0 is connected to a pair of side walls 11A of the front plate 11 by a spring bar 9.

A tool 20 is fixed to the inner surface of the front cover 11 via a spring bar 30 in the connecting hole 11a as in the first embodiment. Therefore, the tool 20 is attached to the front lid 1
On the inner surface of the band 1, it is disposed and fixed in a storage space 15 between the push buckle mechanism 12, which is a locking portion that engages with the buckle body, and one of the bands 4.

Next, a connecting portion 51a at one end of one outer plate 51 of the double clasp is connected to a connecting hole 11a formed in the side wall 11A of the front cover 11 by a spring bar 9 or a pin. The connecting portion 51b at the other end of the outer plate 51 is
Is connected to a connecting portion 52b at one end and a connecting portion 52a at the other end is connected to a connecting portion 53a at the other end of the other outer plate 53 by a spring bar 9 or a pin.

Further, the connecting portion 5 at one end of the other outer plate 53
3a and a connecting piece 41 provided at the rear end of the other band 40 are connected by a spring bar 9 or a pin. The middle plate 52 is provided with a locking projection 12A that locks with the push buckle mechanism 12 as a locking portion. The push clasp mechanism 12 and the locking projection 12A are locked by folding the clasp 10 and the middle plate 52, and the one outer plate 51 and the other outer plate 53.

The connection hole 40a of the tip piece provided on the tip side of the other band 40 is connected to the connection hole 3a of the pair of leading cans 3 which are formed concentrically with the connection hole 40a of the tip piece of the other band 40. It is attached rotatably by communicating the pin 5. This connection structure is exactly the same as in the above-described first embodiment.

Since the embodiment of the present invention is described above, the clasp structure has a function of removing a connecting pin of a driver or a band on the inner surface of the front cover 11 constituting the clasp portion 10 of the wristwatch 1 or 50. Not only can the tool 20 be housed, but also the spring bar 30 is pressed and fixed to the spring portion 25a of the bearing portion 25, so that attachment and detachment from the front cover 11 can be performed freely. Further, the spring bar 30 can be attached to and detached from the front cover 11 by a finger or a claw by the bearing portion 24 which is an L-shaped protrusion.

The tool 20 has a driver projection 22 and a spring rod pushing projection 23 formed at one end of a base 21 in parallel with each other. As long as they do not interfere, it is not particularly limited, but not limited to this. Therefore, it is needless to say that a tool function can be formed at an appropriate position on the base 21. In addition, the projection 22 for the driver and the projection 23 for pushing out the spring bar are:
The user may select only one of them. Further, in the above-described embodiment, the description has been made with the clasp of a wristwatch band as an accessory, but it goes without saying that the present invention can be applied to the clasp of a bracelet and the clasp of a band used for clothes.

[0038]

According to the present invention, the band length can be adjusted and the band can be replaced anywhere. In addition, the user can exchange the band without going to the shop. In addition, tools are installed in the clasp, which is a new clasp structure that has never been seen before. Also, the tool can be easily attached and detached from the inner surface of the front lid. In addition, a clasp structure having the above effects can be provided at low cost.

[Brief description of the drawings]

FIG. 1 is a partially omitted side view showing a wristwatch using a three-folded clasp according to a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of a connecting pin for connecting a band to a wristwatch in the first embodiment of the present invention.

FIG. 3 is a partial perspective view of a tri-folded clasp showing a stored state of a tool in the first embodiment of the present invention.

FIG. 4A is a perspective view showing a tool according to the first embodiment of the present invention. FIG. 4 (b) is a view of A in FIG. 4 (a).
It is sectional drawing which follows the -A line.

FIG. 5 (a) is a perspective view showing a state in which a tool is used as a connecting pin for connecting a first can and a band in the first embodiment of the present invention. FIG. 5B is a perspective view showing a state where the tool is used for pushing out the spring bar of the connecting piece.

FIG. 6 is a side view showing a wristwatch using a double door clasp according to the second embodiment of the present invention.

FIG. 7 is a partial perspective view showing a stored state of a double-leafed clasp structure tool according to the second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 50 Wristwatch 2 Watch main body 3 First can 4 One band 5 Connecting pin 6 Male pin 7 Female pin 8 Connecting piece 8a Connecting hole 9 Spring bar (pin) 10 Middle clasp 11 Front cover 11A Side wall 12 Push clasp mechanism 12A Locking projection 20 Tool 21 Base 22 Driver projection 23 Spring rod pushing projection 24, 25 Bearing part 24a Bearing hole 25a Spring part 30 Spring rod 31 Cylindrical body 32A, 32B Engaging projection 33 Coil spring 35A, 35B Stopper part 36 Middle plate 37 Outer plate 40 The other band 51 One outer plate 52 Middle plate 53 The other outer plate S Escape portion

Claims (6)

[Claims] 1. A clasp having a front cover such as a two-folded clasp, a three-fold clasp, and a double-folded clasp, wherein a tool is disposed and fixed to the inner surface of the front cover via a spring bar. Middle clasp structure characterized by that. 2. The clasp structure according to claim 1, wherein the spring bar is fixed to band length adjusting holes formed on both side surfaces of the front cover. 3. The tool according to claim 1, wherein the tool is arranged and fixed in an inner surface of the front cover in a storage space between the locking portion engaging with the clasp body and one of the bands. Middle clasp structure described. 4. The tool according to claim 1, wherein the tool has a cylindrical bearing portion through which a spring bar is inserted, and a spring portion which presses and fixes the spring bar to the bearing portion. Middle clasp structure described. 5. An L-shaped projecting portion for attaching and detaching a spring bar from the front cover with a finger or a claw is formed on the tool, and the projecting portion has a spring bar coaxially with the bearing portion. 2. A hole through which a hole is inserted is formed.
The clasp structure according to claim 3 or 4. 6. The apparatus according to claim 1, wherein the tool has at least one of a driver function and a function of removing a connecting pin of a band. Anchor structure.