JP3140769B2 - Retaining cord connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[Industrial applications]

The present invention relates to a retaining cord connector.

[0002]

[Prior art]

While the plug blade of the power supply plug elastically clamps,
2. Description of the Related Art There has been a so-called retaining outlet having a blade receiving spring provided with a projection-shaped retaining member which is detachably engaged with a hole formed in a plug blade. On the other hand, no cord connector having a connector at the end of the cord has a retaining function.

[0003]

[Problems to be Solved by the Invention] A blade receiving spring having a retaining function has a problem with a progressive feed type mass-produced type which is manufactured by sequentially punching and bending a hoop material due to holding force and the like. .

By the way, the blade receiving spring having a retaining function is arranged in line symmetry, while the cord connecting portion of the terminal for connecting the cord is provided in the same direction, so that the terminal and the blade receiving spring are integrally formed. In this case, the left and right blade receiving springs cannot be made into a common part.

The present invention has been made in view of the above points, and has as its object the purpose of having a retaining function, and by using common parts, mold manufacturing costs, component manufacturing costs, transportation costs, and component management. It is an object of the present invention to provide a locking cord connector which can be reduced over the entire cost such as cost and assembling cost and has a stable quality.

[0006]

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention provides the above-mentioned double-stoppered blade receiving springs in such a manner that a pair of retaining blade-receiving springs each having a cord connection terminal plate fixed to the rear end thereof are juxtaposed line-symmetrically. A receptacle cover provided with a pair of receptacles for plug plug blade insertion, which is held between a pair of bodies of the same type fixed by caulking studs and is inserted into a blade receiving spring with a stopper, is provided around the entire periphery of the receptacle cover. The retaining projections formed in the inner periphery of the front ends of the two bodies are engaged with the retaining grooves formed in the two parts, so that the retaining holes are held by the two bodies, and the receiving port is provided in the core constituted by the both bodies with a retaining blade. A shell made of resin covering the entire periphery of the core and the receiving port cover is provided opposite to the plug insertion side of the receiving spring, and a part of the shell enters the locking groove of the receiving port cover to prevent peeling of the shell. For prevention It is provided with a hole.

[0007]

[Action]

Thus, according to the present invention, since the blade receiving spring with retaining is formed separately from the terminal plate for connecting the cord, the blade receiving spring with both retaining can be manufactured as a common component for the left and right. Therefore, it is possible to manufacture the device by a method capable of maintaining performance such as holding force.

Further, since a pair of bodies having the same shape are used for holding the blade receiving springs with both retaining stoppers, only one molding die is required for the bodies.

In addition, a shell made of resin is provided to cover the entire periphery of the core and the receiving port cover, and a hole for preventing peeling of a part of the shell entering the locking groove of the receiving port cover to prevent the shell from being released is provided. With this arrangement, it is possible to prevent the shell covering the core and the receiving port cover from peeling off, and to reduce the overall cost such as the reduction of the production cost of the component, the reduction of the transportation cost, and the reduction of the component management cost due to the common use of the components. Can be achieved.

[0010]

【Example】

 Hereinafter, the present invention will be described with reference to examples.

FIG. 1 shows an embodiment. This embodiment is a double-molded product, and a core 1 is composed of a pair of bodies 2 of the same type made of a thermosetting resin molded product as shown in FIG. It is fixed by a caulking rivet 4 which is connected to a through hole 3 provided at the center of the both, and is fixed to a left and right storage concave portion 2a provided on the bottom surface of the body 2 by a blade receiving spring 5 with a retaining member. The blade receiving spring 5 is stored and held between the two bodies 2. The blade receiving spring 5 has a U-shape and has both side pieces 5a and 5b curved in an arc shape and has a slightly expanded end, and a plug plug blade of a power plug such as a U plug inserted from the expanded portion. (Not shown) is elastically sandwiched between both side pieces 5a and 5b.
By moving the plug blade along the arc surface of a, 5b,
A projection-shaped stopper 6 formed on the inner surface of the side piece 5a is engaged with a hole provided in the plug blade so as to be removably engaged to prevent the plug blade from coming off. It has the same configuration as the spring.

Here, a terminal plate 7 for connecting an electric wire as a cord connector is fixed to the rear surface of the central piece of the blade receiving spring 5 by rivet fastening. Here, the pair of blade receiving springs 5 housed in the body 2 are arranged symmetrically with respect to the terminal plate 7 in consideration of the fact that the arcuate lines of the both side pieces 5a and 5b are arranged on the same circumference. The direction of the electric wire connection part 7a is changed according to the left and right arrangement. That is, at the time when the terminal plate 7 is fixed, the blade receiving spring 5 can be placed on the right side and left side. Now, the electric wire connection portion 7a of the terminal plate 7 is exposed to the outside through a groove 2b formed at the end of one end wall of the body 2, and
To be fixed.

A receiving port cover 9 having an opening 8 for inserting a plug plug blade corresponding to the blade receiving spring 5 is inserted into a locking groove 10 formed in the entire peripheral portion of the receiving port cover 9. Engagement projections 11 formed on the inner periphery of the distal end are engaged and fixed so as to be sandwiched between a pair of bodies 2. A hole 12 provided at an appropriate position of the locking groove 10 is a hole for preventing peeling.

Then, the core 1 in which the electric wire 14 is caulked and fixed to the electric wire connection portion 7 a of the terminal plate 7 is put into a secondary molding die, and is made of a thermoplastic resin such as soft vinyl chloride so as to cover the surface of the core 1. When the shell 13 is formed by the secondary molding material, the retaining cord connector is completed. At the time of this secondary molding, the secondary molding material is filled in the peeling prevention holes 12 and the core 1 and the shell 13 are joined to prevent peeling. In the above embodiment, the receptacle cover 9 is fixed to the body 2 so as to be clamped. However, as shown in FIG. 3, the rear part of the blade receiving spring 5 is clamped by a pair of bodies 2 'of the same shape, and The tip of the blade receiving spring 5 is inserted through the opening of the receptacle cover 9 'into the receptacle cover 9' so as to face the receptacle 8 'formed in the bottom of the receptacle cover 9'. Is held in the opening of the receiving cover 9 ', and the assembly screw 18 inserted into the receiving cover 9' through the insertion hole 19 on the rear surface of the body 2 'is fastened and fixed to the receiving cover 9' to fix the core 1 to the receiving cover 9 '. You may comprise. Of course, the blade receiving spring 5 is formed in the same manner as in the above embodiment.

As shown in FIG. 4, a fitting recess 15 for fitting the receiving port cover 9 is provided in one end opening of the body 2, and an engaging groove 16 formed on the outer peripheral portion of the receiving port cover 9 is fitted. Joint recess 15
The receptacle cover 9 may be fixed to the body 2 by engaging with an engagement projection 17 formed on the inner peripheral surface of the body. In this case, the fixing of the bodies 2 is performed by swaging.

[0016]

【The invention's effect】

The present invention is directed to a pair of retainer blade receiving springs, each having a pair of retainer blade fixing springs each having a cord connection terminal plate fixed to the rear end thereof, which are fixed side-by-side in a line-symmetrical manner. A receptacle cover provided with a pair of receptacles for inserting a plug blade inserted into a blade receiving spring with a stopper is provided in a locking groove formed on the entire periphery of the receptacle cover. The retaining projections formed on the inner periphery of the front ends of the both bodies are engaged to be held by the two bodies, and the receiving port is opposed to the plug insertion side of the retaining blade receiving spring in the core composed of the both bodies. A shell made of resin covering the entire periphery of the core and the receptacle cover, and a hole for preventing peeling is provided in which a part of the shell enters the locking groove of the receptacle cover to prevent peeling of the shell. Because By manufacturing the blade receiving spring with retainer separately from the terminal plate that connects the cord, the left and right blade receiving springs with retaining can be manufactured as a common part, resulting in maintaining the performance such as retaining force. In addition to being able to manufacture, the stability of the performance of the blade receiving spring with both retaining stoppers can be achieved, and the same shape can be secured to a pair of bodies holding the both retaining blade receiving springs fixed by swaging rivets. The use of a material has the effect of obtaining a product of stable quality, furthermore, only one molding die is required to reduce the manufacturing cost of the die, and the entire periphery of the core and the receiving port cover can be used. The core and the receiving port cover are covered by providing a shell made of a resin to be coated, and providing a hole for preventing peeling of a part of the shell into the locking groove of the receiving port cover to prevent the shell from separating. The shell can be prevented from peeling off, and the back cover and the body can be prevented from rattling. In addition, commonality of components reduces component manufacturing costs, transportation costs, and component management costs. This has the effect that reduction can be achieved over a range of

[Brief description of the drawings]

FIG. 1A is a front view of an embodiment of the present invention. (B) is a bottom view which is partially broken and can be omitted. (C) is a side view partially broken and omitted from the above.

FIG. 2 (a) is a front view of the same core. (B) is a sectional side view of the same. (C) is a side view of the core. (D) is a bottom view of the core. (E) is a rear view of the core.

FIG. 3A is a front view of a receptacle cover of a reference example. (B) is a side view in which the receptacle cover is partly broken. (C) is a side view of the body part same as the above. (D) is a rear view of the same body part.

FIG. 4 is a side sectional view of another reference example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Core 2 ... Body 5 ... Blade receiving spring 6 ... Retainer 7 ... Terminal plate 7a ... Wire connection part 8 ... Receptacle 9 ... Receptacle cover 13 ... Shell

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Showa 49-34381 (JP, U) Japanese Utility Model Showa 52-138290 (JP, U) Japanese Utility Model 1 121281 (JP, U) Japanese Utility Model Showa 48- 67286 (JP, U) Actually open 48-78394 (JP, U) Actually open 2-20286 (JP, U) Actually open 63-14375 (JP, U) Actually open 52-133471 (JP, U) Japanese Utility Model Showa 50-142191 (JP, U) Japanese Utility Model Showa 52-33090 (JP, U) Japanese Utility Model Showa 53-15095 (JP, U) Japanese Utility Model Showa 48-30311 (JP, Y1) (58) (Int.Cl. ⁷ , DB name) H01R 13/40-13/533

Claims (1)

(57) [Claims] 1. A pair of retaining springs each having a retaining plate having a cord connecting terminal plate fixed to a rear end thereof are fixed side-by-side in such a manner that the pair of retaining springs are fixed by caulking. A locking groove formed between the pair of bodies of the same type and provided with a pair of receiving holes provided with a pair of receiving holes for inserting a plug plug blade to be inserted into a blade receiving spring with a stopper, formed on the entire periphery of the receiving hole cover. The retaining projections formed on the inner periphery of the front ends of both bodies are engaged with each other to hold the two bodies. A shell made of resin covering the entire periphery of the core and the receptacle cover is provided, and a hole for preventing peeling is provided in which a part of the shell enters the locking groove of the receptacle cover to prevent the shell from being separated. Specially become Missing the stop cord connector.