JPH08256810A - Fastener for necklace, etc. - Google Patents

Abstract

PURPOSE: To facilitate attaching/detaching action of a fastener consisting of male and female members for a necklace, etc., and to confirm that the fastener is securely fastened by a sound generated. CONSTITUTION: At a spring action part 42 of a male member 2 provided with a press-in spring 4 consisting of a spring body 41 and a spring action part, an engaging dent part 43 which engages with an engaging projection 9 formed at the opening side edge of a hollow part 8 of a female member 6 is provided. Only by pressing the press-in spring 4 into the hollow part 8 of the female member 6, the engaging dent part 43 is securely engaged with the engaging projection 9 by the spring action of the spring action part 42, and when a press button 51 is pressed, the engaging dent part 43 is disengaged from the engaging projection 9 and the male member 2 can be easily removed. When the engaging dent part 43 is engaged with the engaging projection 9, a contact part 42a formed at a part of the outer circumference of the spring action part 42 is in contact with the inner circumference of the hollow part 8, a sound is generated and it is resonated and amplified in the hollow part 8, and it indicates that the fastener is securely fastened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastener such as a necklace.

[0002]

2. Description of the Related Art A fastener for a necklace is attached to both ends of the necklace and fastens both ends of the necklace at the rear side of the neck. Conventionally, a male member having an insertion spring piece and a cylindrical shape are used. It consists of a female member, and by inserting the insertion spring piece of the male member into the female member, the insertion spring piece of the male member elastically contacts the inner surface of the female member, and the friction secures both ends of the necklace. Since there is a risk of falling off only by friction, a separate stopper is provided, and the stopper is engaged to firmly hold the stopper.

[0003]

Since the necklace is attached / detached on the back side of the neck as described above, the conventional fastener structure as described above is very difficult to attach / detach. When it is fastened with a tool, there is a problem that it is difficult to confirm whether it is sufficiently retained and anxiety remains.

An object of the present invention is to solve the above conventional problems.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a female member having a hollow portion is provided with an engaging recess formed in the spring action portion of a male member having an insertion spring portion composed of a spring body portion and a spring action portion. A locking protrusion protruding inward is formed on the peripheral edge of the opening of the hollow portion of the member, and the insertion spring portion is inserted into the hollow portion of the female member, so that the engaging recess is formed by the spring force of the spring action portion. Is engaged with the locking projection and both ends of the necklace or the like are connected, and by pressing the push button, the engagement recess and the locking projection are disengaged, and the male member is inserted. The spring part can be pulled out from the female member. Further, as described above, when the insertion spring portion is inserted into the hollow portion of the female member and the engagement concave portion is engaged with the locking projection, it makes a sound by hitting the inner peripheral surface of the hollow portion of the female member as a surface. The contact portion is formed on a part of the outer peripheral surface of the spring action portion.

[0006]

As described above, the engaging concave portion is formed in the spring action portion of the insertion spring portion of the male member, and the locking projection is formed in the opening peripheral edge of the hollow portion of the female member, and the spring force of the spring action portion is formed. Since the engaging concave portion is configured to engage with the locking projection at, both ends of the necklace or the like are reliably retained by simply inserting the insertion spring portion of the male member into the female member, and there is a risk of falling off. Disappeared at all,
The male member can be easily removed from the female member by depressing the push button portion, and the attachment / detachment operation of the necklace or the like performed on the back side of the neck becomes very easy and easy.
Further, when the engaging concave portion and the locking protrusion are engaged, the contact portion formed in the spring action portion hits the inner peripheral surface of the hollow portion as a surface, and a sound of hammering is generated. The sound resonates in the hollow part and becomes louder, and the user feels that the sound gets into the ear and the vibration is transmitted to the fingertips so that the sound is securely locked and there is no fear of falling off. Can be confirmed by giving a sense of security to the user.

[0007]

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

In the figure, 1 is a fastener consisting of a male member 2 and a female member 6.

The male member 2 comprises a body portion 3, an insertion spring portion 4 extending from an end surface portion of the body portion 3, and a push button portion 5. A connecting portion 3a for connecting to the end portion of the necklace is provided at the end portion of the body portion 3 opposite to the end surface portion.

The insertion spring portion 4 has a substantially semi-cylindrical spring body portion 41 extending from the end surface portion of the body portion 3, and a spring body portion from the tip of the spring body portion 41 toward the end surface portion of the body portion 3. An approximately semi-cylindrical spring action portion 42 extending along 41
The spring action portion 42 is configured to have a spring force in a direction to widen a gap between the spring body portion 41 and the spring body portion 41. The end portion of the spring action portion 42 on the body portion 3 side passes through the radial notch 31 formed in the end surface portion of the body portion 3 and projects outward from the outer peripheral surface of the body portion 3. A push button 51 is provided at the tip of the push button leg 52 so as to be integrally continuous with 52. An engaging recess 43 that engages with a locking projection 9 of a female member 6 described later is provided in the outer peripheral portion near the end of the spring action portion 42 on the body portion 3 side.

The female member 6 is constituted by a substantially cylindrical body portion 7 having a hollow portion 8 whose one end is open (the body portion 7 has the same diameter as the body portion 3 of the male member 2). A locking projection 9 is formed on the periphery of the opening of the hollow portion 8 so as to project inward over the entire circumference. A connecting portion 7a for connecting to the end portion of the necklace is provided at the end portion of the body portion 7 opposite to the opening portion.

Then, the body part 3 of the male member 2 connected to one end of the necklace is used to insert the spring part 4 thereof.
Is inserted into the hollow portion 8 of the body portion 7 of the female member 6 connected to the other end portion of the necklace. Then, the insertion spring portion 4 is pushed in the radial direction by the locking projection 9 at the peripheral edge of the opening of the hollow portion 8, and the spring acting portion 42 acts against the spring body portion 41 against the spring body portion 41 against the spring body portion 41. When it is inserted while gradually displacing the spring in the direction of contracting the gap of the body part 3 and is inserted until the end face part of the body part 3 comes into contact with the opening end face of the body part 7, the engaging concave part 43 and the locking projection part 9 are formed. And the spring action portion 42 is displaced by the elastic restoring force of itself in the direction to widen the gap with the spring body portion 41, and the engagement recess 43 and the locking projection 9 are engaged with each other to be in a connected state. .

When the engaging recess 43 and the locking projection 9 are engaged in this manner, the outer periphery of the spring action portion 42 is immediately before the tip end surface of the locking projection 9 contacts the bottom of the engaging recess 43. The depth of the engagement recess 43 with respect to the protrusion height of the locking projection 9 is set so that the contact portion 42a formed on a part of the surface hits the inner peripheral surface of the hollow portion 8 as a surface. Due to the strong elastic restoring force of the spring action portion 42, the abutting portion 42a of the spring action portion 42 shockly abuts against the inner peripheral surface of the hollow portion 8 as a surface, and a sound like a hand strike is generated. , The sound is hollow 9
It is resonated inside and further enhanced, and the user can check the safety of wearing by himself / herself by hearing the sound and hearing the vibration transmitted to the fingertips. .

The push button 51 has a flat shape that extends substantially along the outer peripheral surfaces of the body portions 3 and 7, and the push recess 51 and the locking protrusion 9 are engaged with each other, and the push button 51 has a flat shape. The height of the body portions 3 and 7 lifted up from the outer peripheral surface is set to be slightly larger than the engagement depth between the engagement concave portion 43 and the locking projection portion 9, and the push button 51 is attached to the body portions 3 and 7. By pressing with your fingertips until it touches the outer peripheral surface of
The spring action portion 42 is spring-displaced in the direction of contracting the gap with the spring body portion 41 to release the engagement between the engagement concave portion 43 and the locking projection portion 9, and in this state, the male member 2 is pulled out from the female member 6. It can be easily removed. With this configuration, the spring action portion 42 is not subjected to an unnecessary force, and the durability of the spring can be improved. The flat-shaped push button 51 has a relatively large area that does not hurt when pressed with the flat of a fingertip, and can be easily pressed, and the surface of the push button has a brand name and owner. The name, number, etc. can be displayed.

As in the illustrated embodiment, when the hollow portion 8 has a circular cross-sectional shape and the locking projection 9 is formed over the entire circumference of the opening edge of the hollow portion 8, the spring insertion of the male member 2 is performed. Part 4
When inserting into the hollow portion 8 of the female member 6, no alignment is required at all, and the engaging concave portion 43 is always engaged with the engaging projection portion 9 only by inserting from any angle of 360 °, and the spring is The abutting portion 42a of the action portion 42 can perform an intended function of making a sound by hitting the inner peripheral surface of the hollow portion 8 as a surface,
Although the wearing operation is very easy, the cross-sectional shape of the hollow portion 8 is not limited to the circular shape in the illustrated embodiment, but may be an elliptical shape, or can be any polygonal shape such as a quadrangle, a pentagon or an octagon. Further, the outer peripheral shape of the body portions 3 and 7 can be any shape. When the hollow portion 8 has an elliptical cross-sectional shape or a polygonal cross-sectional shape, it is desirable that the overall cross-sectional shape of the insertion spring portion 4 inserted into the hollow portion 8 is also a shape that substantially matches the cross-sectional shape of the hollow portion 8. .

[0016]

As described above, according to the present invention, the insertion spring portion of the male member is surely locked by a simple operation of simply inserting it into the hollow portion of the female member, and there is no fear of falling off. It can be confirmed by sound and fingertips that it is securely locked like this, giving a sense of security to the user, and it can be easily removed by pushing the push button and pulling out the male member from the female member. It is extremely effective as a fastener such as a necklace that can be attached and detached on the back side of the neck.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along line XX of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fastener 2 Male member 3 Body part 4 Insertion spring part 5 Push button part 6 Female member 7 Body part 8 Hollow part 9 Locking protrusion part 31 Notch part 41 Spring body part 42 Spring action part 42a Contact part 43 Engagement Recess 51 push button 52 push button leg

Claims (4)

[Claims] 1. A fastener such as a necklace composed of a female member and a male member, wherein the female member has a substantially cylindrical shape having a hollow portion with one end opened, and the female member is formed inward at the opening peripheral edge of the hollow portion. A locking projection projecting toward the projection is formed, and the male member includes a body portion, an insertion spring portion that is inserted into the hollow portion of the female member, and a push button portion. A spring body portion extending from the end surface of the body portion, and a spring force in a direction extending from the tip end portion of the spring body portion substantially along the spring body portion toward the end surface of the body portion and widening a gap with the spring body portion. A spring acting portion, and an engaging concave portion that engages with the locking projection of the female member is formed in the vicinity of the end portion of the spring acting portion on the end surface side of the body portion, and the body portion of the spring acting portion is formed. At the end on the end face side, there is a push button part that can be pressed from the outside of the body part. By being inserted and inserting the insertion spring portion of the male member into the hollow portion of the female member, the engagement concave portion of the spring action portion is engaged with the locking projection of the female member by the spring action of the spring action portion. The both ends of the necklace are connected, and the push button is pressed to release the engagement between the engagement recess and the locking projection, and the male member can be pulled out from the female member. Necklaces and other fasteners characterized by. 2. A fastener such as a necklace according to claim 1, wherein when the engagement recess engages with the locking projection of the female member by the spring action of the spring action portion, the inside of the hollow portion of the female member A fastener such as a necklace characterized in that an abutting portion that comes into contact with the peripheral surface and emits sound is formed on a part of the outer peripheral surface of the spring action portion. 3. A fastener such as a necklace according to claim 1 or 2, wherein the push button portion has a radial notch formed from the end portion of the spring action portion on the body portion end face side to the body portion end face. A push button leg portion protruding from the outer peripheral surface of the passing body portion, and a flat push button provided at the tip of the push button leg portion and extending substantially along the outer peripheral surface of the body portion.
With the engagement recess engaged with the locking projection, the height of the push button lifted from the outer peripheral surface of the body is set to be slightly larger than the engagement depth between the engagement recess and the locking projection. Fasteners such as necklaces characterized by being. 4. A fastener such as a necklace according to any one of claims 1 to 3, wherein the hollow portion of the female member is formed in a circular cross-sectional shape, and the locking projection is provided around the opening peripheral edge of the hollow portion. A fastener such as a necklace characterized in that the outer peripheral surface of the insertion spring portion inserted into the hollow portion of the female member is formed to have a cross-sectional shape close to a circle.