JPH049752Y2 - - Google Patents

Description

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

(Prior art and problems) This type of bus clip is shown in attached drawing 4.
The one shown in the figure has been widely used in the past. That is, to receive power from a power supply bus strip S extending in the horizontal direction, a circuit post P (only one is shown in the figure) stands upright and is connected to the bus strip S by a bus clip 1. Ru.

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 into the bus strip S at one upward groove of the S-shape, and receives a post P from below at the other downward groove. The wall portion 2 on the free end side forming the downward groove has a receiving portion that forms a throat portion 2A narrower than the thickness of the post P and expands toward the opening edge, and the post P is formed at the top of the downward groove. A penetrating window 3 is formed. When the bus clip 1 is pressed downward against the post P, the post P penetrates through the window portion 3 while being pressed by the throat portion 2A. Thus, the post P is connected to the bus strip S at the throat 2A via the bus clip 1, and can receive power therefrom.

However, although the conventional bus clip as described above has the above-mentioned receiving portion and can be easily introduced into the downward groove of the post, it has a large insertion resistance and is difficult to work with. In particular, if the upper end of the post is square and not tapered, or if there is a burr, this will not only cause a big problem during work, but also cause damage to the contact area of the bus clip, which may result in circuit failure. It also leads to

(Means and effects for solving the problems) The present invention fundamentally solves the problems of the conventional bus clips mentioned above, and eliminates resistance when inserting the post, making the work easier and preventing damage. The purpose is to provide a bus clip that does not cause

In order to achieve the above-mentioned purpose, the present invention has a structure in which the fitting part fixed to the power supply bus strip extending in the X direction of the orthogonal coordinate XYZ and the post for the electrical terminal extending in the positive Z direction are inserted and connected in the same direction. In the bus clip having a clip portion, the clip portion has a plate member extending from the Z-axis negative side portion of the fitting portion and parallel to the X-axis, and is curved outward around the X-axis, so that the free end portion The clip part is formed in a loop shape reaching the Z-axis positive side edge of the fitting part, and the clip part is provided with a lower window through which the post passes through the curved part on the Z-axis negative side, and is opposite to the fitting part. A contact portion that protrudes toward the fitting portion and comes into contact with the post is formed on the side portion, and the edge of the free end portion is elastically deformed to increase the distance between the fitting portion and the side portion of the clip portion. It is configured such that the contact portion is displaced to a non-contact position with the post by being locked by the locking edge on the Z-axis positive side of the receiving fitting portion.

To explain how to assemble and use the bus clip of the present invention, first, insert the post in the positive Z-axis direction (upward) through the lower window of the bus clip, which is fixed to the bus strip at the fitting portion. Then, since the contact part of the bus clip with the post, that is, the distance between the fitting part and the contact part, is wider than the thickness of the post, the post does not receive any resistance and its tip moves along the Z-axis of the loop-shaped clip part. It reaches the positive side bending part (upper bending part) position. However, the free end of the bus clip is engaged with the fitting part in a state where it is elastically displaced, and the Z-axis positive side curved part blocks the upper end of the post from advancing. When the post is pressed against the above-mentioned Z-axis positive side bending portion against this, the free end portion is disengaged from the flexible fitting portion in that direction, and the contact portion comes to press against the side portion of the post. In this way, the post remains firmly in contact with the bus clip at the predetermined insertion position where its upper end abuts against the Z-axis positive side of the clip portion. Moreover, until it reaches this position, no resistance force such as friction is generated between it and the bus clip, and the bus clip will not be damaged.

(Example) An example of the present invention will be described below with reference to the accompanying drawings. In addition, in the figure, orthogonal coordinates XYZ are set in order to understand the directionality.

FIG. 1 is a perspective view of the bus clip of this embodiment. The bus clip 10 includes a fitting part 11 and a clip part 12 formed from a plate member. Fitting part 1
1 is bent in an inverted U shape, and has a downward groove 13 formed therein for fitting in the negative Z direction with respect to the bus strip extending in the X direction, and the groove width is larger than the thickness of the bus strip. It is also set slightly smaller so that the bus strip can be fitted. On the side wall of the fitting part 11 opposite to the clip part 12, a protrusion 1 is formed outwardly by pressing or the like.
4 are formed, and the bus clip is positioned by engaging with protrusions at predetermined positions among the holes S1 (see FIG. 2A) provided on the bus strip S at equal pitches.

Next, the clip portion 12 is attached to the U-shaped fitting portion 1.
The lower end of one side wall on the Y positive direction side of the fitting part 11 extends from the lower end on the Z axis negative side end and is curved around the ) reaching the edge.

An upper window 15 and a lower window 1 are provided on the Z-axis positive side (upper side) and negative side (lower side) of the clip portion 12, respectively.
6 is provided. Here, the upper window 15 is not particularly essential. Further, in the intermediate portion of the side of the clip portion 12 facing the fitting portion 11, a fitting portion 11 is provided.
A contact portion 17 is formed that curves and protrudes in the direction of.

The fitting portion 11 has a tongue-shaped locking edge 18 formed by cutting out a portion of the curved portion. The free end 19 of the clip portion 12 is located beyond the locking edge 18 in the free state (the position indicated by the chain double-dashed line in FIG. 2A or the positions C and D in the same figure).
The distance between the contact portion 17 and the surface of the fitting portion that the contact portion 17 faces is slightly narrower than the thickness of the post, and when the post is inserted upward from the lower window 16, the post is The upper window 15 is located at a position where it can be penetrated.

When the bath strip S is fixed at the fitting part, the free end 19 is displaced in the positive Y direction, that is, in the direction of separating the contact part 17 from the fitting part 11, and the end edge 19A is locked. It is brought to a position beyond the edge 18. Therefore, the edge 19A is locked to the locking edge 18 while applying a spring force to the locking edge 18. In this state, first, the contact portion 17 forms a gap larger than the thickness of the post with the fitting portion 11, and the edge 15A of the upper window 15 on the fitting portion side blocks the post from penetrating. It has reached the point where it can be squeezed out. Note that in the case where the upper window is not provided, the upper curved portion always blocks the window. The bus clip 10 is now on the bus strip S and ready for use.

Next, the use of the above-mentioned bus clip will be explained step by step with reference to FIG.

First, as shown in FIG. 2A, the post P is inserted upward through the lower window 16 of the bus clip shown in FIG. 1.

Then, the tip of the post P hits the edge 15A of the upper window 15 as shown in FIG. 2B.

Furthermore, push the post P upward against the bus clip 10, or push the post P upward against the bus clip 10.
0 is pressed down against the post P, the free end 19 of the bus clip 10 flexes upward, disengages from the locking edge 18, and moves beyond the locking edge 18 in the Y-axis direction to the free position. (The position indicated by the two-dot chain line in FIG. 2A) is returned (see FIG. 2C). Thus, the contact portion 17 comes into contact with the post P with a spring force.

At that time, the post P penetrates the upper window 15 and protrudes upward due to the force of pushing up the edge 15A (Fig. 2D). This occurs immediately after the free end returns to the free state described above. At this time, friction is generated momentarily between the post and the contact portion under the contact pressure in the insertion direction, resulting in a cleaning effect on the contact surface.As described above, Thus, the post P is inserted into the bus clip without any resistance at the contact portion, and finally comes into firm contact with the bus clip under a predetermined contact pressure.

In this embodiment, the locking edge 1 of the bus clip
8 is shaped like a tongue pointing upward, but other shapes are also possible, and as shown in Fig. 3, the central part of the upper curved part is cut to make the part tapered when forming the curve. A locking edge 18' facing the clip part can be provided. In this way, the free end 19
The transition from the free state to the locked state can be easily made along the tapered surface, and the locking can be performed reliably.

(Effects of the invention) As described above, the present invention expands the clip part by elastically deforming it by locking the tip end of the clip part to the fitting part before inserting the post.
When inserting the post, there should be no resistance, and just before the insertion of the post is complete, the upper end of the post comes into contact with the tip of the clip to release the lock, and the force of the return of the clip to its original position allows the clip to return to its original position. Since the post is connected to the bus clip at the clip portion under sufficient elastic force, no matter what shape the end of the post is, there is no need to worry about the difficulty of work due to the conventional plunge resistance. Furthermore, circuit failures due to damage to the bus clips are no longer caused, which brings about great effects in terms of both work and performance improvement.

[Brief explanation of the drawing]

1 is a perspective view of a bus clip as an embodiment of the present invention, FIGS. 2A to 2D are cross-sectional views sequentially showing how the post is inserted into the bus clip of FIG. 1 fitted to the bus strip, and FIG. FIG. 3 is a partial perspective view showing another form of the locking edge of the bus clip shown in FIG. 1, and FIG. 4 is a perspective view of the conventional bus strip when the post is inserted. 10...Bus clip, 11...Fitting part, 12
... Clip portion, 15 ... Upper window, 15A ... Edge of upper window, 16 ... Lower window, 17 ... Contact portion,
18, 18'...locking edge, 19'...free end,
19A... Edge of free end, P... Post, S...
...Bath strip.

Claims (1)

[Claim for Utility Model Registration] A clip in which a fitting part fixed to a bus strip for power supply extending in the X direction of the orthogonal coordinate XYZ and a post for an electric terminal extending in the positive Z direction are inserted and connected in the same direction. In the bus clip having a section, the clip section has a plate member that extends from the Z-axis negative side portion of the fitting section and is parallel to the X-axis, and is curved outward around the The clip part is formed in a loop shape reaching the Z-axis positive side edge, and the clip part has a lower window through which the post passes through the bent part on the Z-axis negative side, and a lower window on the side opposite to the fitting part. A contact part is formed that protrudes toward the fitting part and comes into contact with the post, and the edge of the free end part undergoes elastic deformation to expand the distance between the fitting part and the side of the clip part. A bus clip, characterized in that the contact portion is displaced to a non-contact position with the post by being locked to a locking edge on the positive side of the Z-axis of the bus clip.