JPS6247176Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Technical Field of the Invention The present invention relates to the structure of a connecting terminal, and particularly to the structure of a connecting terminal such as a harmonica terminal that is suitable for use in connecting a plurality of connecting conductors.

(b) Prior art and problems A conventional connection terminal will be explained with reference to the drawings.

FIG. 1 is a structural diagram of a conventional harmonica terminal, in which A shows a plan view, B shows a sectional side view of a main part, and FIG. 2 shows a perspective view of a connecting conductor.

The harmonica terminal shown in FIG. 1 has a number of walls 2 arranged in a row on the top surface of a terminal board 1 made of an insulating material, a washer 4 is inserted into the terminal male screw 3, and the terminal is screwed to a metal fitting 5. The members are arranged in rows between each wall 2,
The terminal board 1 has a relief hole 6 at a position corresponding to the shaft end of the terminal male screw 3. Also the second
The figure is a perspective view of a connection conductor 8 having a crimp terminal 7, and shows a connection in which a terminal male screw 3 is inserted into the ring part of the crimp terminal 7 and the crimp terminal 7 is tightened between a terminal metal fitting 5 and a washer 4. It's structured.

However, in order to insert the terminal male screw 3 into the ring part of the crimp terminal 7, the terminal male screw 3 must be unscrewed from the terminal metal fitting 5 each time. Rukumata had the disadvantage that it was easy to lose the terminal male screw 3 and washer 4.

(c) Purpose of the invention In view of the above-mentioned conventional drawbacks, the object of the present invention is to provide a connecting terminal with a structure that improves workability and prevents loss of terminal male screws, etc.

(d) Structure of the invention According to the invention, the purpose is to provide a connecting conductor 8 having a crimp terminal 7, which has a guide shaft 10 into which the crimp terminal 7 is inserted and guided, and a hole 13a into which the guide shaft is inserted. and a presser tube 13 that is screwed to the upper insulating member 12b and presses the inserted crimp terminal 7 against the terminal hardware 9 provided on the terminal board 12. This is achieved by

(e) Examples of the invention Examples of the invention will be described below in detail with reference to drawings. In the drawings, parts corresponding to those in FIGS. 1 and 2 are designated by the same reference numerals, and redundant explanation thereof will be omitted. FIG. 3 is a structural diagram of the connecting terminal according to the present invention, in which A shows a plan view and B shows a side sectional view of a main part.

In the figure, reference numeral 9 denotes a terminal metal fitting, in which the female screw hole of the terminal metal fitting 5 in FIG. 1 is replaced with a through hole through which a guide shaft 10 is inserted. Guide shaft 1
0 has a shaft diameter that allows the crimp terminal 7 to be inserted therein, and as shown in the figure, a stopper 10a is formed to abut and lock on the lower surface of the terminal metal fitting 9, and a coil spring 11 is provided at the lower end of the guide shaft 10. It is being Therefore, by locking the stopper 10a to the lower surface of the terminal metal fitting 9, the guide shaft 10 is elastically biased. For this purpose, the terminal board 12 is made of an insulating material.
The movable spring of the stopper 10a and the coil spring 11 are
A two-stage counterbore hole 12a is formed to ensure a storage space. On the other hand, a presser cylinder 13 having a hole 13a into which the guide shaft 10 is inserted is provided. This presser cylinder 13 is disposed on the axis of the guide shaft 10 with a hole 13a facing the upper end of the guide shaft 10, and has a screw 13b at the top thereof for raising and lowering the hole 13a in the direction in which the guide shaft 10 is inserted. have Further, the upper insulating member 12b has a female thread that is screwed into the screw 13b.

However, the action is such that the presser cylinder 13 is
If the ring part of the crimp terminal 7 of the connecting conductor 8 is inserted between the lower surface of the presser cylinder 13 and the upper end of the guide shaft 10, the guide shaft 10 will be coiled by the pressure of the ring part. The guide shaft 10 descends against the elasticity of the spring 11, and when the insertion of the ring portion is completed, the position of the guide shaft 10 is restored.

In addition, the insertion amount of the crimp terminal 7 is proportional to the amount of protrusion of the guide shaft 10 from the upper surface of the terminal metal fitting 9, and it is possible to insert a plurality of crimp terminals 7, and the inserted connection conductor 8 can be clamped by the guide shaft 10. Since the screws 13b are temporarily tightened, the screws 13b can be tightened with both hands, resulting in good work efficiency. If the required amount of connection conductor 8 is inserted and fastened with screw 13b, crimp terminal 7 and terminal hardware 9 are electrically connected by pressing. Further, the presser cylinder 13 is screwed to the upper insulating member 12b by a screw 13b, and the guide shaft 1 is connected to the upper insulating member 12b by a screw 13b.
0 is inserted through the presser tube 13, so there is no chance of losing the presser tube 13.

Note that a metal plate corresponding to the terminal hardware 9 is also provided on the upper insulating member 12b, and the connection between the terminals is made using the terminal hardware 9.
This may be done in two conductive paths between the metal plate and the metal plate. In that case, the presser cylinder 13 and the screw 13b need to be made of a conductive material. Furthermore, even if the guide shaft 10 is fixed in a protruding manner on the terminal hardware 9 in order to simplify the structure, if the space between the guide shaft 10 and the lower end of the presser tube 13 is larger than the thickness of the crimp terminal 7, the effect will not work. Almost the same. Although this embodiment has been described in terms of the shape of a harmonica terminal, even if the guide shaft 10 attached to the terminal hardware 9 is singular, it still functions as a connecting terminal.

(f) Effects of the invention As explained in detail above, the connection terminal of the invention is provided with a guide shaft, and the crimp terminal is inserted into the guide shaft and temporarily fixed, so the connection work is extremely simple and the removal is easy. Furthermore, there is no risk of losing parts, which is effective in improving work efficiency.

[Brief explanation of the drawing]

Fig. 1 is a structural diagram of a conventional harmonica terminal, in which A is a plan view, B is a side sectional view of main parts, Fig. 2 is a perspective view of a connecting conductor, and Fig. 3 is a structural diagram of a connecting terminal according to the present invention. In this figure, A shows a plan view, and B shows a side sectional view of a main part. In the figure, 7 is a crimp terminal, 8 is a connecting conductor, and 9 is a crimp terminal.
1 is a terminal hardware, 10 is a guide shaft, 12 is a terminal plate, 1
2b is an upper insulating member, 13 is a presser cylinder, 13a is a hole into which a guide shaft is inserted, and 13b is a screw.

Claims (1)

[Scope of utility model registration request] The upper insulating member 12 has a guide shaft 10 into which the crimp terminal 7 of the connection conductor 8 having the crimp terminal 7 is inserted and guided, and a hole 13a into which the guide shaft is inserted.
A connecting terminal characterized in that it is configured by a holding tube 13 which is screwed to the terminal b and which presses the inserted crimp terminal 7 against a terminal metal fitting 9 provided on a terminal board 12.