JPH03210777A - Plug-in type connector - Google Patents

Abstract

PURPOSE:To diminish a working process to reduce cost by inserting a spring body, in which a projection is provided on its outer side, through the opening part of an insulation case so that to the projection on the spring body side may be engaged with and fixed to a locking hole in the insulation case. CONSTITUTION:Insertion of a spring body 4, in which a projection part 5 is provided on its outer side, through an opening part 10 causes the projection part 5 of the spring body 4 to engage with a locking hole 3, and the spring body 4 is fixedly locked. In the spring body 4, one sheet of metal plate is folded to form a base part 4a, take-out part 4b, and spring piece supporting part 4c, and moreover spring pieces 7 and 8 are provided on the inner side to dually lock an electric wire terminal inserted through a guide hole 11. This permits a diminished working process and inexpensiveness.

Description

[Detailed description of the invention] The present invention eliminates the need for a cap to prevent the spring body from slipping out by automatically locking the spring body containing a conductive plate inside the insulating case when it is inserted all the way into the insulating case. Regarding the manufacturing method.

Conventionally, in this type of plug-in connector, if the insulating case was soft, a part narrower than the spring body was provided inside the insulating case, and this was pushed open when inserting the spring body to insert and fix it. The spring body that has been inserted may come out, and hard materials cannot be pushed open and inserted.
Assembling requires double processing and has many drawbacks, such as resulting in a high quality product.However, it has excellent impact resistance and heat resistance, and is easy and inexpensive to insert with few processing steps. There is a strong demand for connectors, and the present application aims to provide a stable, low-cost product that eliminates all of the drawbacks of the conventional products mentioned above.

Hereinafter, one embodiment of the present application will be described with reference to the drawings. Reference numeral 1 denotes an insulating case, which has an opening 10 into which a spring body 4 is inserted, a locking hole 3 provided in the inner wall at the back, and a protrusion provided on the outside. When the spring body 4 is inserted through the mouth opening 1O, the spring body 4 itself contracts a little, and the insulating case itself expands a little so that it can be inserted all the way, and the protrusion 5 provided at the position to engage with the engagement hole 3 fits into this engagement hole 3 and recovers from contraction, and the spring body is fixed and locked. Reference numeral 2 is a non-slip step which prevents the hand gripping the insulating case 1 from slipping when inserting the wire end, and has a locking hole 3 in the center. Reference numeral 4 is a springless type, which is mainly formed by bending a metal plate, and has spring pieces 7 and 8 inside, and double presses and locks the inserted wire ends, and the upper part holds each wire end. Guide holes 11 to be inserted into the terminals are provided according to the number of terminals, and the upper parts of the spring pieces 7 and 8 are supported by the support pieces 6. Reference numeral 9 denotes a conductive plate, which is formed into a wave shape, and the ends of the electric wires fit into the grooves to provide a stable connection.

It should be noted that if the number of locking holes 3 and protrusions 5 is plural, the fixation will be more stable and strong.

Furthermore, if you want to pull out the spring body 4 that has been assembled inside the insulating case 1 for some reason, use any tool such as a screwdriver to insert it into the engagement hole 3.
Insert the outer side of the spring body 4 while pressing the protrusion 5.
It is possible to extract.

Further, the molding position of the protrusion 5 is not limited to the position shown in the figure, but may be provided on the support piece 6, and the locking hole 3 may also be provided at a position where it engages, for example.

As mentioned above, the product can be easily and firmly attached to an insulating case made of a material with excellent heat resistance such as hard resin or ceramics without a cap, and has excellent shock resistance, heat resistance, insulation resistance, etc. Cheap and stable supply available.

[Brief explanation of drawings]

The drawings show one embodiment of the present application, and FIG. 1 is a sectional view showing a state in which a spring body is inserted and fixed into an insulating case. 1: Insulating case, 2: Anti-slip step, 3: Locking hole, 4: Spring body, 5: Projection, 6: Support piece, 7 and 8: Spring piece, 9
: Conductive plate, 10: Mouth opening, 11: Guide hole. Patent applicant Kawaguchi Metal Industry Co., Ltd. Representative Kawa [1 Takeo] Button stone paper 1 diagram

Claims (1)

[Claims] A feature is that a protrusion is provided on the outer surface of the spring body, a locking hole is provided in the insulating case at a position where the protrusion engages and fits, and the spring body is inserted and fixed through the opening of the insulating case. Plug-in connector.