JPH09320712A - Fall-off preventive plug receptacle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fall-off preventive plug receptacle capable of being easily manufactured. SOLUTION: A blade pad spring block is constituted by engaging and coupling a terminal plate 6 and a terminal plate 7 with each other. The terminal plate 6 is integrally formed with a pair of blade pad springs 8 facing each other, and a blade pad spring 9 is formed at both blade pad spring plates 8. A protrusion to be engaged with a hole of a plug blade of a plug is formed inside the blade pad spring plate 8 Contact pieces are formed respectively on both sides of the terminal plate 7, and a chain key springs 11 are arranged respectively inside of the contact pieces, to elastically energize wires inserted from the outside. A body 1 is provided with ribs 19 abutting with back faces of the terminal plates 6 and 7, respectively and preventing an interval between the terminal plates 6 and 7 from being expanded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retaining outlet provided with a retaining mechanism for an inserted plug.

[0002]

2. Description of the Related Art In general, a retaining socket of this type has a blade receiving spring into which a plug blade of a plug is inserted, and a retaining mechanism for the plug blade (fits with a hole of the blade of the inserted plug). A first terminal plate having a projection formed on the terminal plate), a second terminal plate which is connected to the first terminal plate and is connected to an electric wire inserted from the outside, and the electric wire. A locking spring for urging the second terminal plate, a release button for bending the locking spring in a direction of separating from the second terminal plate when receiving an external force, a body in which the above-mentioned members are arranged, and a body It is composed of a cover and the like provided on the upper surface.

[0003]

By the way, in the above-mentioned conventional structure, the blade receiving spring block composed of the first terminal plate and the second terminal plate is integrally formed, so that the blade receiving spring block is formed. Therefore, the shape of the metal plate is complicated, and it takes time to bend the metal plate.

There is also one in which the first terminal plate and the second terminal plate are formed as separate members and provided with a blade receiving spring block in which both terminal plates are caulked and joined. However, when an electric wire is inserted from the outside, Due to the overlapping of the electric wire and the locking spring, a force is applied to the blade receiving spring portion and the terminal portion in directions opposite to each other, and there is a problem that the caulked portions of both terminal plates may come off. The present invention has been made in view of the above circumstances, and Claim 1
An object of the present invention is to provide a retaining outlet that is easy to manufacture.

Further, an object of the invention of claim 2 is to reduce the force applied to the connecting portion between the terminal plate having the blade receiving spring and the terminal plate for contacting and connecting with the electric wire inserted from the outside to remove the connecting portion. It is to provide a retaining outlet that can be prevented.

[0006]

In order to achieve the above object, the invention according to claim 1 has a body having an opening on one surface,
A case is formed by covering the opening of the body and forming a pair of left and right blade insertion holes through which the blades of the plug are inserted and the body and the cover at the left and right sides of the body. And an assembly frame having claws projecting to both sides of the body, and a pair of blades arranged on the left and right inside the body through partition walls formed inside the body and inserted through the blade insertion openings, respectively. A pair of blade receiving members, and a pair of terminals which are separate members from each blade receiving member and at least a part of which is crimped to each blade receiving member and which clamps an external electric wire between the blade and the terminal plate by the spring force of a locking spring. A pair of blade receiving spring plates for holding the blade, and a pair of blade receiving spring plates for sandwiching the blade, the blade receiving member having an arc shape along the blade insertion opening. Key points of the connecting piece that connects the spring plates and the facing surface of the double-edged spring plate Each of the terminal members has a pair of locking springs and straddles the pair of locking springs. A blade receiving member that is arranged in a curled shape and that has a release button that bends the locking spring in a direction of separating from the terminal plate when an external force is applied, which constitutes a conventional blade receiving spring block. Since at least a part of the terminal member and the terminal member are formed as separate members and caulked and coupled, it is possible to provide a retaining socket in which the blade receiving spring block is easily manufactured as compared with the case where the blade receiving spring block is integrally formed. it can.

According to a second aspect of the invention, in order to achieve the above object, in the first aspect of the invention, the blade receiving member has another terminal plate facing the terminal plate, and the blade receiving member and the terminal member are provided. Is crimped to the other terminal plate and the terminal plate, a part of the locking spring abuts the surface of the other terminal plate facing the terminal plate, the body is the other terminal plate and the terminal plate. Ribs are provided to prevent the distance between the other terminal plate and the above-mentioned terminal plate from expanding when they are inserted into the back surface of the terminal plate. It is possible to reduce the force applied to and to prevent the binding site from coming off.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, the body 1 is formed in a box shape having an open upper surface, and an insulating wall 2 (partition wall) is formed in the center. Terminal accommodating portions 3 and 4 are formed on both sides of the insulating wall 2, and the blade receiving spring block 5 and the like are installed therein. The blade receiving spring block 5 is composed of a terminal plate 6 formed in a substantially U shape, and a terminal plate 7 formed by caulking with the terminal plate 6 and formed in a substantially L shape. The terminal plate 6 is integrally formed with a pair of blade receiving spring plates 8 facing each other, and the blade receiving springs 9 are formed by the double blade receiving spring plates 8. The upper portion of the blade receiving spring plate 8 is formed in an arc shape, and a protrusion that fits into the hole of the blade of the plug is formed inside the blade receiving spring plate 8 to form a retaining mechanism. Here, the double-edged spring receiving plate 8 is connected by a connecting piece 22. In the present embodiment, since the blade receiving spring block 5 caulks and connects the terminal plate 6 and the terminal plate 7, the blade receiving spring block 5 of the blade receiving spring block 5 is larger than the case where the terminal plate 6 and the terminal plate 7 are integrally formed. Manufacturing is easy.

Contact pieces 10 are formed on both sides of the other terminal plate 7, and a locking spring 11 is provided inside the contact piece 10 to elastically urge an electric wire inserted from the outside toward the contact piece 10.
Are arranged respectively. Further, there is provided a release button 12 that bends the locking spring 11 in a direction of separating from the contact piece 10 when receiving an external force. In this embodiment, the terminal plate 6 constitutes a blade receiving member, and the terminal plate 7 and the pair of locking springs 11 are provided.
And the release button 12 form a terminal member.

The cover 20 provided on the upper surface of the body 1 is provided with a blade insertion opening 13 corresponding to the blade receiving spring 9, and the cover 20 and the body 1 are attached to a metal assembly frame 14. Are combined. Both side pieces 15 of the assembly frame 14 are inserted into the grooves 17 formed on the cover 20 and the side surface of the body 1, respectively, and the locking piece 16 at the tip of the side piece 15 is expanded to the outside to form the groove 1 of the body 1.
The body 1 and the cover 20 are joined by being locked to the edge portion of 7. In addition, the assembly frame 14 has a protruding piece 18 (claw) for detachably mounting an outlet on the mounting frame.
Are integrally formed.

Next, the gist of the present invention will be described with reference to FIG. X in FIG. 1 indicates a crimped portion of the terminal plates 6 and 7, and when a wire is inserted through the wire insertion hole formed in the bottom surface of the body 1, the Y portion shown in FIG. is there. Here, when the electric wire is inserted, due to the overlap between the electric wire and the locking spring 11, a force is applied to the blade receiving spring 9 and the terminal plates 6 and 7 in directions opposite to each other, and the caulking portion X may come off. Ribs 19 for receiving the above-mentioned force are formed on the body 1 on the outer sides of 6 and 7. The rib 19 fixes the blade receiving spring block 5 to the body 1. In short, in the present embodiment, by providing the body 1 with the ribs 19 which come into contact with the back surfaces of the terminal plate 6 and the terminal plate 7 respectively and prevent the space between the terminal plate 6 and the terminal plate 7 from expanding when the electric wire is inserted, When the wire is inserted, the caulking part X between the terminal plate 6 and the terminal plate 7
The force applied to the (bonding site) can be reduced, and the crimped part can be prevented from coming off.

As shown in FIG. 1A, a hole 21 for pushing and driving the release button 12 is formed in the bottom of the body 1. From this hole 21, for example, the tip of a driver. The electric wire can be released by inserting and pressing the release button 12 to bend the locking spring 11 in a direction away from the contact piece 10.

[0013]

According to the invention of claim 1, a body having an opening on one surface, a cover which covers the opening of the body and which is formed with a pair of left and right blade insertion holes into which the blades of the plug are inserted, and a body. An assembly frame that has a claw that connects the body and the cover to the left and right sides of the cover to form a case, and has claws that project to both sides of the case; and a partition wall formed in the body A pair of blade receiving members that are respectively connected to the pair of blades that are arranged and inserted through the blade insertion opening,
A pair of terminal members, which are separate members from each blade receiving member, at least a part of which is crimped to each blade receiving member, and which sandwich an external electric wire between the blade and the terminal plate by a spring force of a locking spring, Each of the blade insertion holes is formed in an arc shape, and the blade receiving member is an arc along the blade insertion opening and has a pair of blade receiving spring plates for sandwiching the blade and a connection for connecting the two blade receiving spring plates. Each of the terminal members has a pair of chains and a projection that is provided on a portion of the opposing surface of the double-blade receiving spring plate and that fits into a hole formed in the blade to prevent the plug from coming off. In addition to having a lock spring, it also has a release button that is arranged so as to straddle the pair of lock springs and bends in such a direction that the lock spring is separated from the terminal plate when an external force is applied. The blade receiving member that constitutes the block and at least a part of the terminal member are formed by different members and are caulked. Since is engaged, there is an effect that it is possible to manufacture a blade receiving spring block provides easy stopper outlet in comparison with the case where the blade receiving spring block is integrally formed.

According to a second aspect of the present invention, in the first aspect of the present invention, the blade receiving member has another terminal plate facing the terminal plate, and the blade receiving member and the terminal member have another terminal plate and the terminal. The plate is caulked, part of the locking spring abuts on the surface of the other terminal plate facing the terminal plate, and the body abuts on the back surface of the other terminal plate and the terminal plate, respectively, and the wire is inserted. At times, ribs are provided to prevent the distance between the other terminal plate and the terminal plate from expanding, so that it is possible to reduce the force applied to the connecting portion between the other terminal plate and the terminal plate when the external electric wire is inserted. It is possible to prevent the binding site from coming off. There is also an effect that the electric wire insertion force is stable.

[Brief description of drawings]

FIG. 1 shows an embodiment, (a) is a cross-sectional view of a main part with a cover removed, and (b) is a plan view of a main part with a cover removed.

FIG. 2 is an exploded perspective view of the same.

[Explanation of symbols]

 1 Body 6 1st terminal board 7 2nd terminal board 9 Blade receiving spring 11 Locking spring 12 Release button 19 Rib

Claims (2)

[Claims] 1. A body having an opening on one surface, a cover formed with a pair of left and right plug blade insertion openings for covering the opening of the body and through which plug blades of a plug are inserted, and on both left and right sides of the body and the cover. An assembly frame that connects the body and cover to form a case and has claws that project to both sides of the case, and a blade insertion port that is arranged on the left and right inside the body through partition walls formed in the body A pair of blade receiving members that are respectively connected to the pair of blades inserted into the blade, and at least a part of the blade receiving members that is separate from each blade receiving member and is caulked to each blade receiving member, and the terminal is formed by the spring force of a locking spring. A pair of terminal members for sandwiching an external electric wire between the plate and the plate, the pair of blade insertion holes are formed in an arc shape, and the blade receiving member is an arc shape along the blade insertion opening A pair of blade receiving spring plates that clamp the A connecting piece, and a projection that is provided at a point on the opposing surface of the double-edged spring plate and that fits into a hole formed in the blade to prevent the plug from coming off.
Each has a pair of locking springs, and a release button that is arranged so as to straddle the pair of locking springs and bends in such a direction as to separate the locking spring from the terminal plate when an external force is applied. A plug outlet that prevents 2. The blade receiving member has another terminal plate facing the terminal plate, the blade receiving member and the terminal member are caulked with the other terminal plate and the terminal plate, and Some of them contact the surface of the other terminal plate facing the above terminal plate, and the body contacts the back surfaces of the other terminal plate and the above terminal plate, respectively, and the gap between the other terminal plate and the above terminal plate when the wire is inserted. A retaining socket characterized by being provided with a rib for preventing the expansion of the.