JPH0633508U - Clasps such as bracelets - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention makes it easy to engage and disengage a clasp used for a connecting portion of a bracelet or the like with one hand and improve the design of the clasp as a whole. [Structure] In the female tool 11, the outer end of the substrate 13 is attached to the outer surface of
A bulging portion 13a having a fitting hole 14 on the inner end surface is formed, and a hooking hole 15 is provided on a locking portion 13b formed by bending the inner end portion of the board to a slanted outer surface. Male 1
2, the outer end of the main body 16 provided with the side frames 16a and 16b is formed with a hook 17 on the inner surface of the hook 17 which can be engaged with the hanging hole 15,
In addition, a cavity 18 is formed in the main body so that the inner end portion facing the fitting hole 14 and the one side frame 16a have openings 18a and 18b, respectively.
a and the fingertip piece 19b are respectively exposed by the spring member 23, and the locking piece 19a is independently provided against the spring member.
And an operation piece 19 for retracting the locking piece 19a into the cavity 18 at the same time when one finger tip piece 19b is pushed, and a pin 21 is axially mounted in a guide hole 20 provided in the operation piece. Supported by.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a clasp used for connecting parts such as a bracelet or an armlet attached to a wrist or an arm, and other wristbands for women and watches.

[0002]

[Prior art]

 Ring-shaped jewelry used for wrists, such as bracelets, usually uses various male and female clasps to connect both ends of a continuous thread or chain through which many pieces of jewelry are inserted. FIG. 5 shows an example of this, and this clasp consists of a female tool 1 and a male tool 2. The female tool 1 is constructed by installing a locking rod 1b between both leg pieces of a U-shaped member 1a. Further, the male tool 2 is provided with a portion 1c, and the male tool 2 is pivotally attached between the leg pieces of the U-shaped member 2a by the shaft 3a so that the inner end can be opened and closed. The engaging portion 3d provided at the inner end of the above is pivotally attached, and when the both end pieces 3b, 3c are closed in an abutting manner on the inner surface of the end portion of the other end piece 3c, the engaging portion engages with the above end engaging portion 3d. The clasp is provided with a projecting portion 3e, and the clasp described above has a structure in which both the pieces 3b and 3c are opened as shown in FIG. A) After being inserted in the direction of the arrow, the protrusion 3e is engaged with the locking portion 3d by stacking them on the facing portion piece 3b.

In addition, a clasp as shown in FIG. 6 is used in a wristwatch or the like. That is, the female member 4 of this clasp is installed between both side pieces 4a with a bar 4b and a locking piece 4e exposing the intermediate portion of the stop shaft 4c from the mouth 4d at a front and rear interval. The male tool 5 has bent portions 5c and 5d which can be engaged with the rod 4b and the stop shaft 4c at the outer ends of the inner short piece 5a and the outer long piece 5b whose bases are individually pivoted by the shaft 6. As shown in FIG. 6 (B), this clasp first hooks the bent portion 5c of the inner short piece 5a on the rod 4b to temporarily engage it, and then the outer long piece 5b to the outer surface of the female implement 4. By rotating so as to collapse, the bent portion 5d is pushed into the mouth portion 4d so that it can be engaged with the stop shaft 4c.

[0004]

[Problems to be solved by the device]

 By the way, in the former case of the above-mentioned conventional example, each time when the clasp is engaged and disengaged, the piece 3c has to pass through the mouth 1c of the female tool 1, and at the time of engagement, as shown in FIG. As described above, it is necessary to fit the mouth portion 1c of the female tool 1 from the upper portion in a state where the above-mentioned piece 3c is erected, and further, when detaching, the female tool 1 must be pulled out from the piece 3c and removed. There is a problem in operability as a clasp for bracelets and the like that requires the operation of "engaging with one hand", and it has the drawback of being inferior in aesthetics and luxury. In addition, the latter one lacks the high-class feeling and the decorativeness as described above, and both pieces 5a and 5b of the male tool 5 are independently pivoted on the shaft 6, and the bending portion 5d of the outer long piece 5b is provided. Since it uses the resilience due to the spring, the engagement and disengagement operation is troublesome, and it requires a considerable force to be applied to the fingertips when detaching, which has an adverse effect on the handling as a female ornament. Is there.

It is an object of the present invention to further improve the idea of the engagement and disengagement mechanism of the clasp shown in FIG. 6 by further advancing and improving the high class and remarkably enhancing the operability with one hand. Suru

[0006]

[Means for Solving the Problems]

 The present invention comprises a male tool and a female tool for engaging and disengaging the male tool. The female tool has an outer end portion of the base plate formed on the outer surface of the shaft and a bulging portion having a fitting hole formed on the inner end surface thereof. The slanted outer surface is bent at the inner end of the base plate to form a hooking hole in the locking portion, and the other male member has a main body whose outer surface matches the outer surface shape of the bulging portion. Side frames for holding both sides of the substrate are formed on both sides, and hooks that allow the outer ends of the body to be engaged with the hanging holes are provided on the inner surface of the body. A cavity is formed in which the inner end portion facing the fitting hole and the one side frame open to the frame respectively, and the locking piece and the fingertip piece are respectively protruded from the opening into the cavity by a spring member, and The locking piece is independent against the spring member, and when the one fingertip piece is pushed in, the locking piece is retracted into the cavity at the same time. The operation piece, characterized in that allowed supported by shaft interpolating the pin guide hole provided in the operation lever.

It should be noted that the guide hole of the operation piece is formed in a right-angled triangle, and the fingertip piece of the operation piece whose oblique side is projected from one side opening of the main body and the position facing the middle of the elastic force direction by the spring member. It is suitable that the two sides that intersect the right angle are formed along the direction in which the fingertip piece and the locking piece of the operation piece are respectively moved backward toward the inside of the cavity.

[0008]

[Action]

 According to the present invention, a base plate of a female tool is placed on a wrist surface, and a hook portion of the male tool is temporarily locked by engaging a hooking hole of the female tool. When the main body is rotated so that the female tool overlaps and the male tool is pressed from the outer upper part, the locking piece provided on the operating piece of the male tool once retracts into the cavity, and then the opposing female tool It is possible to connect the two by pushing it into the fitting hole, and when detaching, push the fingertip piece of the operation piece protruding from the one side opening of the male tool body against the internal spring member. When depressed, the locking piece of the operation piece can be removed from the fitting hole to separate the male and female tools.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS.

In FIGS. 1 to 4, 11 is a female member of the clasp 10 and 12 is a male member of the same. One female member 11 is an outer end portion of a base plate 13 that is brought into contact with an arm surface. The bulged portion 13a is formed on the outer surface of the gawa, and the fitting hole 14 is formed in the vertical inner end surface of the bulged portion. A hooking hole 15 is provided in the locking portion 13b formed by bending.

The other male tool 12 has a side that holds both sides of the base plate 12 of the female tool 11 on both sides of a main body 16 formed by matching the outer surface with the outer surface shape of the bulged portion 13a. In addition to forming the frames 16a and 16b, the outer end of the main body is provided with a hook 17 on the inner surface of the hollow for fitting and locking with the hanging hole 15. Further, in the main body 16, the bulging portion is provided. When facing the inner end face having the fitting hole 14 of 13a, the one side frame 16a is formed with cavities 18 having openings 18a and 18b toward the chin, respectively. As shown, a locking piece 19a that is substantially L-shaped and extends outward from the openings 18a and 18b, and a fingertip piece 19b are formed, and a guide hole 20 that forms a right-angled triangle is provided in the intermediate portion. The operation piece 19 inserts the pin 21 into the guide hole 20. The operation piece 19 is supported by a spiral spring (spring member) 23 attached to a support shaft 22 in the cavity 18, and the locking piece 19a and the fingertip piece 19b are opened respectively in the openings 18a, 19b. It is pressed from 18b in the respective protruding directions. An inclined surface 19 'is formed at the outer end of the locking piece 19a.

However, the hypotenuse 20a of the guide hole 20 formed in the above-mentioned right-angled triangle is formed at a position facing the middle of the fingertip piece 19b and the elastic portion by the spring 23, and the other two sides 20b and 20c sandwiching the right angle are The locking pieces 19a and the fingertip pieces 19b of the operation piece 19 are formed along the moving direction in which the openings 18a and 18b are pushed into the cavity 18 from the sides. Reference numeral 24 denotes a continuous thread (or chain) as a decorative article such as a bracelet which is laid between the outer ends of the male tool 12 and the female tool 11.

As shown in FIG. 4 (F), the clasp 10 having the above-mentioned structure is constructed by winding a continuous thread 24 such as a bracelet around the wrist, placing the base plate 13 of the female tool 11 on the wrist surface, and then By engaging the hook 17 of the male tool 12 with the hook hole 15 provided in the locking part 13b of the female tool, these female and male tools 11, 12 are temporarily locked, and then the locking part is rotated. When the male tool 12 is rotated onto the female tool base plate 13 as a fulcrum and is pushed in as shown in FIG. 4 (G), the outer end slope 19 'of the locking piece 19a is moved to the inner end of the bulge portion 13a. By sliding it against the spring 23, the locking piece 19a is retracted into the cavity 18 together with the operating piece 19 (FIG. 3D), and when the locking piece 19a again emerges from the opening 18a by the spring (FIG. 3C), it is locked. The tip of the piece 19a projects into the fitting hole 14 of the female tool 11 to connect the male and female tools. Then, the guide hole 20 allows the above-described movement of the operation piece 19.

Further, when removing the male and female tools 11 and 12, the outer surfaces of the side frames 16a and 16b of the male tool 12 are pinched together with the fingertip piece 19b by fingers as shown in FIG. 5 (H). The operating piece 19 is pushed into the cavity 18 against the spring 23, and the slanting side 20a of the guide hole 20 is guided by the pin 21 in the operating piece, so that the locking piece 19a is hollow. By retracting into 18 (Fig. 3E), the male and female tools are disengaged.

[0015]

[Effect of device]

 As described in detail above, according to the present invention, since the hook of the male tool to be engaged with the hanging hole of the female tool is integrally formed with the main body of the male tool, temporary locking of these male and female tools is facilitated. In addition to being able to reliably perform the operation, the operation piece is provided in the cavity of the male tool so that the locking piece and the fingertip piece can be protruded from the inner end of the main body and one side frame from the outer end by the internal spring. With this, it is possible to easily engage and disengage the male and female tools with one hand. In addition, the outer end of the female tool is provided with a bulged portion on the outer surface of the male tool so as to match the outer surface shape of the male tool body, and the board side portions of the female tool are held on both sides of the male tool body. Since the side frame to be held is formed, the overall appearance of the clasp is made good, and the pressing of the fingertip piece at the time of detachment is performed quickly and surely by pinching both side frames of the male body with fingers. It is possible.

[Brief description of drawings]

FIG. 1 is a perspective view of a clasp according to the present invention before engagement.

FIG. 2 is a perspective view of the same when temporarily locked.

FIGS. 3 (C), (D), and (E) are front views showing an operation sequence of operation pieces provided in the cavity of the male tool.

FIG. 4 (F) (G) is a perspective view illustrating an engagement procedure of the clasp of the present invention on the wrist.

FIG. 5 (H) is a perspective view for explaining the removal procedure.

FIG. 6 is a perspective view showing an example of a conventional clasp.

FIG. 7A is a perspective view of a band clasp used in a wristwatch before engagement.

FIG. 7 (B) is a partially cutaway horizontal sectional view of the same when temporarily locking.

[Explanation of symbols]

 11 Female Tool 12 Male Tool 13 Substrate 13a Swelling Section 13b Locking Section 14 Fitting Hole 15 Hanging Hole 16 Main Body 16a, 16b Both Side Frames 17 Hook 18 Cavity 18a, 18b Opening 19 Operation Piece 19a Locking Piece 19b Fingertip Piece 20 Guide Hole 20a hypotenuse 20b, 20c 2 pieces sandwiching a right angle 21 pin 23 spring member

Claims (2)

[Scope of utility model registration request] 1. A male tool and a female tool for engaging and disengaging the male tool, wherein the female tool has an outer end portion of the base plate formed on the outer surface of the saw and a bulged portion having a fitting hole formed on the inner end surface thereof. At the same time, a slanted outer surface is formed on the inner end portion of the base plate to form a hook hole in a locking portion, and the other male member is a main body whose outer surface matches the outer surface shape of the bulged portion. Side frames for holding both side portions of the substrate are formed on both sides of the base plate, and hooks that can be engaged with the hanging holes are provided on the inner end of the main body on the inner surface of the main body. A cavity is formed in which the inner end portion facing the fitting hole and the one side frame open to the frame respectively, and the locking piece and the fingertip piece are respectively projected from the opening into the cavity by a spring member, and The locking piece is independently set against the spring member, and at the same time when the one fingertip piece is pushed, the locking piece is retracted into the cavity. A clasp such as a bracelet, characterized in that the operation piece is supported by axially inserting a pin into a guide hole provided in the operation piece. 2. The guide hole of the operation piece is formed in a right-angled triangle, and the fingertip piece of the operation piece whose hypotenuse is protruded from one side opening of the main body faces the middle of the elastic force direction by the spring member. The two sides, which are formed at a position and which are perpendicular to each other, are formed along the directions in which the fingertip piece and the locking piece of the operation piece are respectively moved backward toward the inside of the cavity. Clasps such as bracelets.