JPS6328536Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a plate terminal for wire assemblies that facilitates the manufacture of wire assemblies to be wired inside equipment and that makes attachment to the equipment accurate and simple.

Conventionally, a known wire assembly, the basic form of which is illustrated in FIG. 5, has been widely used in automobile ground wiring, etc., and a plurality of plate terminals shown in FIG. 1 are stacked and arranged in the main parts of the vehicle body. That is, the terminal of the electric wire 3 is caulked and connected to the connection part 2 of the plate terminal, the plate-shaped attachment parts 1 at the other end are stacked together, the attachment holes 4 are assembled concentrically, and the main parts of the vehicle body are connected with bolts. sticks to. However, the connection part 2 around which the electric wire 3 is wound
Since it has a thick three-dimensional shape, the connecting portions 2 interfere with each other during the above-mentioned attachment work, making it extremely difficult to accurately assemble the plate-like attachment portions 1, which impedes smooth work. For example, when stacking plate terminals with their axes aligned and bolting them in direction A as shown in Figure 2, the series of operations of assembling the plate terminals, positioning them, holding them by hand, and tightening them is extremely difficult. Moreover, the base 1A of the attachment part naturally deforms and bends, and even if tightened with sufficient torque, a gap 5 remains between the plates of the attachment part, impeding the smooth function of the wire terminal. do. On the other hand, in order to alleviate the above-mentioned difficult work, a method is adopted in which the connecting portion 2 and its vicinity are wrapped with tape and fixed together, but when wrapping with tape, it is difficult to match the centers of the attachment holes. From the above,
As shown in Figures 3 and 4, as an improved version, a double plate terminal in which a plurality of connecting parts 2 are connected to a single mounting part 1 is now in public use, but it has problems in terms of productivity in mass production systems. cannot be resolved. That is, in accordance with the steps A, B, and C shown in the fifth figure, branch wires 6A and 7A are attached to the two wire assembly elements 6 and 7, and a double plate terminal 8 is connected to the final end of the main wire that becomes a common circuit. When producing and installing wire assemblies, it is essential to combine the required wire assemblies and crimping them using a connection crimping machine. Generally, it involves complicated work such as generalizing, processing, and organizing. Therefore, in a modern mass production system in which the caulking process is performed on a conveyor line and immediate installation work is required, an inefficient and unreasonable process is involved, resulting in a chronic defect that significantly impedes the productivity of the wire assembly.

The present invention aims to eliminate the above-mentioned defects, and provides a plate terminal with a new structure having a pair of symmetrical locking portions disposed around the outer periphery of the attachment portion.

The present invention will be described below with reference to FIGS. 6 to 9 of the embodiment drawings. A plate terminal 9 according to the present invention includes a plate-shaped attachment part 1 having an attachment hole 4 in the center, and a U-shaped groove-shaped connection part 2 having an axis on the center line 4A of the attachment hole 4. (Attachment part 1 and connection part 2
The bottom surface is the same plane), and the connection part 2 has a connection piece 2A that is plastically worked in the direction of the arrow in FIG. Connect the wires in the same way. On the other hand, a pair of locking portions 10 of the same shape and size are integrally provided at 180° relative positions on the outer periphery of the attachment portion 1. The locking part 10 is a slightly wider plate-shaped male locking piece 11 that is an extension of the attachment part 1, and the edge of the male locking piece 11 is raised and extends parallel to the upper surface of the attachment part 1 through a gap 13. It consists of a tongue-shaped female locking piece 12 connected to each other, and both are arranged along the outer periphery of the attachment surface 1. Then, the gap 13 is determined to have a gap amount in which the male locking piece 11 is loosely and loosely fitted so that the locking parts 10 of the two plate terminals fit into each other, and the male locking piece 11 and the female locking piece 12 have the same width and the same length, and in order to achieve an accurate fitted state during the fitting, the edge 11A of the male locking piece 11, the edge 12A of the female locking piece 12, and the male locking piece 11 The contact ridges (terminus of the gap 13) 13A of the female locking piece 12 and the female locking piece 12 have accurate linear shapes that overlap with the normal lines 4B, 4C, and 4D of the attachment hole 4, respectively, as shown. The male locking piece 12 has a protruding locking pawl 14 that projects into the gap 13 at approximately the center position. It is bent in 13 directions to form a cantilever-like elastic claw that gradually rises toward the end of the gap. Further, the male locking piece 11 has a fitting hole 15 in which the locking pawl 14 is fitted, approximately at the center position corresponding to the locking pawl 14. Note that the pair of locking portions 10 are arranged at positions rotated accurately by 180° with the center line 4A of the attachment hole as the axis of symmetry, and the male locking piece 11
The tip is formed into a tapered surface 16 to facilitate fitting.

That is, the locking parts 10 are provided in a symmetrical pair on the outer periphery of the attachment part 1, with a male locking piece 11 extending outward along the outer periphery of the attachment part 1, and a male locking piece 11 on one side of the male locking piece 11. The female terminal has a raised side edge and is bent to follow the outer periphery of the attachment part 1, and has a gap 13 between it and the upper surface of the attachment part 1 for receiving and fitting the male locking piece 11 of the mating plate terminal. Furthermore, the male locking piece 11 and the female locking piece 12 are provided with lock claws 1 which form a pair and fit into the mating plate terminal.
4 and a fitting hole 15 are provided to form a locking mechanism.

Two plate terminals 9 of the same shape and size with the above new configuration
A and 9B are assembled with the mounting surfaces 1 in the same direction and the mounting hole centers aligned, as shown in FIG. The terminals 2 are located radially at an angle of intersection θ (25° in one embodiment) and are essentially connected as a single plate terminal. That is, by the above rotation, one male locking piece 11 is inserted into the gap of the other female locking piece 12, and the lock claw 14 and the female locking piece 12 are fitted together by elastic bending, and the end edge 11A at the final position where it abuts against the ridge 13A (11th
Figure) The lock pawl 14 fits into the fitting hole 15. As shown in FIG. 12, the two connecting parts are arranged in the same direction with the bottom surfaces differing only in the mounting surface plate thickness, and the connected electric wires are characterized in that they are connected radially.

From the above, the plate terminal of the present invention clearly eliminates the conventional defects in wire assembly. That is, the above-mentioned connection allows the attachment surfaces to be in perfect contact, so that the plate terminal function is performed smoothly and the reliability of the wire terminal is improved.Furthermore, in the wire assembly production process, the plate terminal 9 is attached to each of the wire assembly elements in advance. Since the wire assembly can be completed by the one-touch fitting described above when installing the wire assembly on the conveyor line, the conventional complicated process is completely eliminated and productivity is significantly improved. Furthermore, due to the feature of mutual fitting between plate terminals of the same shape and size, it is possible to mass produce a single type, which has the advantage of being able to be provided at low cost.

[Brief explanation of the drawing]

Figures 1, 3, and 4: A plan view showing the conventional structure of a plate terminal, Figure 2: Figure 1 is an explanatory diagram of how the plate terminal is used, Figure 5: An explanatory diagram of the basic shape and processing procedure of the wire assembly, Figure 6
Figure: Plan view showing one embodiment of the present invention, Figure 7: Figure 6
Figure 8: Front view of the embodiment; Figure 8: Left side view of the embodiment in Figure 6; Figure 9: Enlarged cross-sectional view of AA in Figure 6; Figure 10.
Figures: Figure 6: Explanatory diagram of the usage state of the embodiment, Figure 11:
BB cross-sectional enlarged view of FIG. 10; FIG. 12: C side view of FIG. 10; Main symbols: 1: Attachment part, 2: Connection part, 3: Electric wire, 4: Attachment hole, 6, 7: Wire assembly element, 8: Plate terminal of conventional structure, 9: Plate terminal according to the present invention, 10:
Locking part, 11: Male locking piece, 12: Female locking piece, 1
3: Gap, 14: Lock claw, 15: Fitting hole.

Claims (1)

[Scope of utility model registration request] In a plate terminal in which a plate-shaped attachment part with an attachment hole bored in the center and a wire connection part whose axis overlaps with the center line of the attachment hole are connected, a pair of symmetrical A locking portion is provided, and the locking portion includes a male locking piece that extends outward along the outer periphery of the attachment portion, and a side edge of the male locking piece that is raised and bent. a female locking piece that extends along the outer periphery of the attachment part and has a gap between it and the upper surface of the attachment part for receiving the male locking piece of the mating plate terminal; A pair of locking claws and a fitting hole are formed in the locking piece, and the mounting surfaces of the pair of plate terminals are stacked concentrically in the same direction, and the male locking piece and the female locking piece are stacked concentrically in the same direction. A plate terminal for a wire assembly, characterized in that the terminals are fitted into each other, and the lock claw and the fitting hole are fitted to lock the terminal.