JPH059821Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a post connector used to connect posts for electrical terminals of each circuit to a bus strip for power supply.

(Prior Art and Problems) A clip shown in FIG. 3 (hereinafter referred to as a "bus clip") is used as the post connector. In other words, a circuit post P (only one is shown in the figure) receives power from a power supply bus strip S extending in the horizontal direction.
stands upright and is connected to the bus strip S by a bus clip 1.

The bus clips 1 form a substantially S-shape when viewed from the longitudinal direction of the bus strips S, and are fitted and fixed to a large number of bus strips S at the arrangement pitches of the posts P. As shown in the figure, the bus clip 1 itself is fitted to the bus strip S at one downward groove 2 of the S shape, and a post P can be inserted through a hole 5 formed in the bottom wall 4 of the other upward groove 3. It's summery.
In addition, the free side wall 6 forming the upward groove 3 is formed at the upper part.
It is bent in the negative direction to form a narrow passage 8 between it and the rear wall 7, and is adapted to press against the side wall of the post P inserted from below.

However, in the bus clip 1 having the above structure, the free side wall 6 of the upward groove 3 is sharply bent, and the resistance of the post P to push into the narrow space 8 is large, and the free side wall, which is a spring material, is sharply bent. There are problems such as a small amount of opening angle displacement and fast settling.

Therefore, the applicant proposed a bus clip 11 as shown in FIG. That is, the bus clip 11 has a rectangular plate-like shape in a plan view, which has a substantially U-shape in a side view, and one side wall 12 is bent toward the other side to form an elastic presser part 13. A post insertion hole 17 is provided through the side wall 14, and a receiving groove 16 for attaching the bus strip is provided inside the other side wall 14.
The structure is such that the upper surface is opened in a U-shape.

It is true that the configuration shown in FIG. 2 above can solve the above-mentioned problems and does not require much force to insert the post. However, it is also true that a certain amount of force is required when inserting the post.
In particular, if the upper end of the post is square and does not have a taper, or if there are burrs remaining, this may not only cause a big problem during work, but also cause damage to the contact area of the bus clip. If damaged, it can cause circuit failure.

(Means for solving the problems) The present invention has been made for the purpose of solving the above problems, and employs the following technical means.

That is, the U is fitted into the bus strip at the holding part and is mechanically and electrically connected to the bus strip, and is arranged so that a space with a clamping interval slightly narrower than the width of the post is formed between the holding part and the holding part.
A U-shape in side view, comprising a side wall extending in the shape of a letter, an opening for inserting a post formed in the bottom of the U-shape, and a connecting part for holding a post inserted upward through the opening. The bus clip has a shaped bus clip and a press-fitting part that is slightly thicker than the width of the post. The post connector includes a preload pin that is press-fitted downward into the connection portion to make the post wider than the width and thickness of the post.

(Function) According to the above structure, the connection part of the bus clip is expanded by the press-fitting part of the preload pin to be wider than the width of the post when the post is inserted, so that the post can be inserted smoothly without generating frictional resistance. At that time, the post enters the entry space formed between the comb blades of the preload pin and is brought to a predetermined position. Thereafter, the preload pin is pulled out and the post is clamped by the side wall of the connecting portion which elastically returns.

(Example) Hereinafter, the present invention will be described based on drawings showing an example.

First, to explain from bus clip 11,
As shown in the drawings and FIG. 2, the bus clip 11 used in the present invention is made by bending a rectangular plate-like object in plan view into a substantially U-shape in side view, and one side wall 12 is formed by a post P. Presser part 1 for pressing and fixing
3, the other side wall 14 side is bent in a box shape, and the other side wall 14 is provided with an engaging part 1 for engaging the bath strip S.
5 is provided.

The bus clip 11 has both side walls 12 and 1.
4, a receiving groove 16 for engaging a bus strip is provided with an opening on the top surface and a U-shape when viewed from the side. Specifically, the receiving groove 16 is formed by cutting out the center part of the plate-like object in the width direction, from the bottom of the U-shaped plate-like object to the middle part of the one side wall 12. An opening 17 for inserting a post is formed through the bottom of the bus clip 11, and at the same time, the cut and raised portion is curved into a U-shape, and the side wall surface of the free end of the receiving groove 16 thus cut and formed. 18 is a vertical wall that faces the presser portion 13 and has a structure that stably presses and fixes the post P.

Therefore, the one side wall 12, which acts as an elastic body of the bus clip 11, is branched from the bottom of the other side wall 14 and is formed gently.As a result, the elastic force held by the one side wall 12 is soft. Therefore, the post P can be inserted easily, and when the post P is pressed and fixed after insertion, the post P has a shape that precisely follows the free end side wall surface 18, and the mechanical and electrical connection between the post P and the bus clip 11 is maintained. This improves the reliability of the post P
When the bus strip S and the bus clip 11 are inserted, the free end side wall surface 18 of the receiving groove 16 is pressed against the post P, thereby improving the reliability of the mechanical and electrical connection between the bus strip S and the bus clip 11.

As shown in FIGS. 1 and 2, the bus clip 11 may be provided with a guide groove 19 on one side wall 12, thereby making it possible to insert the post P more easily and accurately.

However, as mentioned above, the above bus clip 1
If only 1 is used, frictional resistance still remains when the post P is inserted. Therefore, the post connector of this invention is
The bus clip 11 is constructed by combining a preload pin 20 shown in FIG. 1.

The preload pin 20 is made of a plate material that has a press-fitting part that is slightly thicker than the width of the post at the lower part, and has a plurality of comb blades 21 in the press-fitting part, and the upper part serves as a hook part when pulling upward. A stepped portion 22 is formed. The space 23 between the comb blades 21, 21 is used as an insertion interval for the post P, and the ceiling portion of the space serves as a support portion 24 for receiving the top end of the post.

That is, the preload pin 20 has its comb blade 21
The connecting portion 13 is inserted so as to extend between the adjacent bus clips 11, 11, and the post P is inserted from below the bus clip 11. Here, the post P is inserted into the connecting portion 13 which has been pushed and expanded. The preload pin 20 passes through the bus clip 11 without any frictional resistance, pushes up the support part 24 of the preload pin 20, and the preload pin 20 comes out of the bus clip 11. One side wall 12 returns to the other side wall 14 side with the restoring elastic force, and the post P is pressed and fixed by one side wall 12.

(Effects of the invention) As explained above, according to the invention, no frictional resistance is generated when inserting the post, even when the top of the post has an angular shape or has burrs remaining. It can be inserted smoothly and has the advantage of not causing any circuit failures.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is a central vertical sectional view of the bus clip, and FIG. 3 is a perspective view showing a conventional bus clip. 11...Bus clip, 13...Connection part, 17
...Opening, 20...Preload pin, 21...Comb blade.

Claims (1)

[Claims for Utility Model Registration] (1) The post is fitted onto the bus strip at the holding part and is mechanically and electrically connected to the bus strip, with a clamping interval between the holding part and the post being slightly narrower than the width of the post. A connection having a side wall extending in a U-shape to form a space with a U-shape, an opening for inserting a post being formed at the bottom of the U-shape, and sandwiching a post inserted upward through the opening. The bus clip is U-shaped in side view, and has a press-fitting part that is slightly thicker than the width of the post. A post connector comprising: a preload pin that is press-fitted downward into the connecting portion in order to make the clamping interval of the connecting portion wider than the width and thickness of the post during insertion. (2) The post connector according to claim 1, wherein the preload pin is provided with a support portion for receiving the top end of the post to be inserted.