JPH0644416U - Magnet coupler - Google Patents

Abstract

(57) [Summary] [Purpose] To enable a pair of retaining members each having a permanent magnet embedded in a smooth inner facing surface to be engaged with each other so as not to separate against the pulling external force by the continuous yarns. [Structure] Each of a pair of retaining members 2 in which permanent magnets 3, 3 are embedded in the smooth inner surface 2a of the contacting warp 2a, a continuous yarn 4
The curved portion 2d which can be engaged with the concave curved portion 2c provided on the side surface portion which intersects the direction in which the external tensile force is applied is formed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 TECHNICAL FIELD The present invention relates to a coupling device using magnets that can be attached to and detached from both ends of an accessory such as a necklace.

[0002]

[Prior art]

 When connecting both ends of chains, continuous threads, etc. of jewelry such as necklaces so that they can be freely detached, various types of connectors (retaining clasps) with a permanent magnet on the inner surface of the contact have been proposed and used. However, in the structure in which the above-mentioned facing inner surfaces equipped with magnets are each made into a smooth plate surface, or the concavo-convex portion is fitted in the anti-pulling direction of the continuous yarn as in Japanese Utility Model Laid-Open No. 60-1317 If the yarn is applied with an external tension force, it will come off easily. Therefore, as a countermeasure, as described in Japanese Utility Model Publication No. 58-46656 (in addition, JP-A Nos. 60-119901 and 61-137504), A cylindrical permanent magnet is fixedly mounted on one inner surface of the ferromagnetic plate to be contacted, and a cylindrical projection is formed on the other inner surface so as to be axially fitted into the cylindrical magnet. Or the actual configuration No. 61-86018, the direction perpendicular to the direction in which an external force is applied by pulling both the tenon (or the groove) on one of the contact surfaces of the magnet composed of a pair and the tenon hole (or the groove) on the other. It is known that there are mainly two types of connectors formed on the.

[0003]

[Problems to be solved by the device]

 By the way, the above-mentioned two types have the advantage that they do not come off even if the hooks that are engaged with each other are pulled to the left and right by the continuous yarns. In the case of No. 46656, the other party has to pull out the projection of the shaft from the inside of the hole in parallel to the axial direction, and in the latter, it is necessary to slide both of them in the longitudinal direction in parallel with each other. As described above, in the case of the conventional type, since a certain length must be slid in parallel from the bound state at the time of separation, it is apt to be twisted at the time of separation, and both entrances need to be aligned in the front direction at the time of engagement. However, it has the drawback of not only being troublesome to remove if perspiration accumulates in the holes or grooves, or if dust adheres to it, but it is also poor in decorativeness.

The present invention has been made in response to such an actual situation, and secures the engagement of a pair of fixed concrete pieces even though the contact inner surface in which the plate-like permanent magnets are embedded is made smooth. Another object of the present invention is to provide a connecting tool that is easy to engage and disengage.

[0005]

[Means for Solving the Problems]

 The present invention is provided with a loop ring for connecting continuous yarns to each outer end of a hook concrete which is made up of a pair of permanent magnets embedded in the inner surface of the smooth contact piece. The inner surface is bent to form a curved portion that can be engaged with a concave portion formed on the side surface that intersects the direction in which the left and right tension external force is applied by the continuous yarns. Characterize.

The pair of retaining members can be formed in the same shape.

[0007]

[Action]

 In the connecting device of the present invention having the above-mentioned structure, the curved surfaces of the respective hooks are made to correspond to the concave bent portions of the other hook, and the inner surfaces in which the permanent magnets are embedded are brought into contact with each other to form continuous yarns. Can be connected in a loop shape, and at the time of separation, they can be separated by pulling the retaining members away from each other in the direction of pushing the curved portions outward.

[0008]

【Example】

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

In the connector 1 shown in FIGS. 1 to 6, the connector 1 is made of a non-magnetic material such as precious metal, ceramics or other synthetic resin, and is formed into a pair of dovetails when viewed from the front. The plate-shaped permanent magnets 3 are embedded so that the opposite poles N and S are exposed on the inner surface 2a of each smooth contact piece of No. 2 and the chain or continuous yarn is further attached to each dovetail-shaped outer end 2b. When the mating ring 5 for connecting the class 4 is projected and the smooth inner surface 2a is brought into contact with the inner end of the anti-tail tail, the pulling external force is applied by the continuous thread 4 of the mating side hook concrete 2 respectively. The curved inner surface 2a is formed by bending the contact inner surface 2a into a curved portion 2d which can be engaged with a concave curved portion 2c provided on a side surface intersecting with the direction in which the above is applied.

[0012] The above-mentioned pair of retaining concrete members 2 have a flat oval shape as a whole in a connected state. However, the shape may be appropriately determined, and in the illustrated example, the outer surface looks like the tip of a finger. It is shown that the same pattern shape 2'with a streak formed by aligning and bending (or bundling three bananas) was formed, but other pattern shapes were adopted or the above The pattern shapes 2'of the concrete are different from each other, and the yoke 6 is interposed around the permanent magnet 3, but such a yoke may be omitted.

In the connecting tool 1 having the above-described structure, each curved portion 2d is made to correspond to the concave curved portion 2c of the mating concrete, as shown by the line arrows in FIG. When the inner surfaces 2a in which the permanent magnets 3 are embedded are brought into contact with each other in the closed state, each retaining element 2 is engaged in a palm shape as shown in FIG. 1 to connect the continuous yarn 4 in a loop. Of. Moreover, when separating the above-mentioned retaining concrete 2, the curved surface 2d of each retaining concrete is extruded as if the outer surface is opened as shown by the thick arrow in FIG. It should be pulled away from one side.

[0012]

[Effect of device]

 According to the present invention, the plate-shaped permanent magnets attracting each other are buried in the inner surface of the contacting surface of each smooth concrete, but there is no fear of separation due to the pulling external force of the continuous yarns. When they are separated, they can be easily separated by extruding the curved portions provided on the wales at the inner ends of the concrete blocks so that the outer surfaces of the bent concrete parts are peeled off to the wales.

Further, when the pair of tie concretes are formed to have the same shape, the production and processing including molding of the pattern shape on the outer surface of the tie concretes can be facilitated and provided at low cost.

[Brief description of drawings]

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

FIG. 2 is a perspective view of the same when separated.

FIG. 3 is a plan view of FIG.

FIG. 4 is a bottom view of FIG.

FIG. 5 (A) is a front view of the fastener.

FIG. 5 (B) is a back front view of the fastener.

FIG. 6 is an enlarged cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Coupling tool 2 A pair of tie concrete 2a Abutting girder inner surface 2b Outer end 2c Recessed curved portion 2d Curved portion 3 Permanent magnet 4 Continuous yarn

[Procedure amendment]

[Submission date] November 11, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

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

FIG. 2 is a perspective view of the same when separated.

FIG. 3 is a plan view of FIG.

FIG. 4 is a bottom view of FIG.

5 (a) is a front front view of the fastener, and (b) is a front front view of the fastener.

FIG. 6 is an enlarged cross-sectional view taken along the line AA of FIG.

[Explanation of reference numerals] 1 connecting tool 2 pair of retaining concrete 2a contacting inner surface 2b outer end 2c concave curved portion 2d curved portion 3 permanent magnet 4 continuous yarns

Claims (2)

[Scope of utility model registration request] 1. An interlocking ring for connecting continuous yarns to each outer end of a retaining concrete formed of a pair of permanent magnets embedded in the inner surface of a smooth contact bar, and an inner end of each retaining concrete. The inner surface of the gutter is formed by bending the inner surface into a concave part that can be engaged with a concave part provided on a side surface that intersects with the direction in which the left-right tension external force is applied by the continuous yarns. A coupling tool using a magnet. 2. The coupling tool by a magnet according to claim 1, wherein each pair of retaining members are formed in the same shape.