JPH037029Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a terminal block, and the lifting spring action on a pair of movable plates on the power supply side and the load side, which slidably pass through the terminal board, is approximately equal. The field of application is the terminal block.

(Conventional technology and problems) A pair of notches are provided in a terminal board that is supported by the support shoulders of the terminal block body and passed between the power supply side and the load side.
Connecting vertical pieces 11a, 1 of the movable pieces on the power supply side and the load side
1a is slidably passed through, spring hook pieces 12a, 12a are provided at the lower end of each vertical piece as shown in FIG. Fit the protruding coil spring a, and attach the wire portions 19a, 19a to the spring hanging piece 12.
Terminal blocks having a structure that extends over the lower surfaces of a and 12a are conventionally known.

However, this structure is different from each line portion 19 as shown in the figure.
a, 19a is the center 12 of the spring hanging pieces 12a, 12a
b, 12b are in elastic contact with each other on the lower surface of the front or rear side, so that the connecting vertical pieces 11a, 11a of the movable piece are tilted to the front or rear side within the groove of the terminal plate. This has the disadvantage that it makes the sliding of the connecting vertical pieces unsmooth, and that the frictional parts caused by the sliding tend to wear out or break. (Refer to the portions 9 and 9 in Figure 3 for the above-mentioned cutout grooves, the portions 10 and 10 in the same figure for the movable piece, and the portions 11 and 11 in the same figure for the connecting vertical piece. (Problems to be Solved by the Invention) The structure of the coil spring a illustrated in FIG. It has extremely disadvantageous drawbacks.

The problem of the present invention is to develop a terminal block that eliminates the above-mentioned drawbacks of the conventional terminal block.

(Means for solving the problem) The purpose of the present invention is to solve the problem described in the previous section of the terminal block, and specifically, the power supply side and the load A pair of movable pieces 10 on the power supply side and the load side, each having a U-shaped bend, are installed in vertical grooves 3, 3 provided in a single terminal plate 7 that extends over the support shoulders 2, 2 at the upper ends of the support legs protruding from the side. 10, each of the connecting vertical pieces 11, 11 is slidably passed through the connecting vertical pieces 1.
1, 11 at the lower ends of the spring hooks 12, 12 on the terminal plate 7.
A spring support rod 5 with a split groove 6 protrudes below the center of the terminal plate 7, and a mounting piece 18 is provided that protrudes from one end of the coil winding portion 17 to the center of the winding. The wire portions 19, 19 of the two coil springs 16, 16 protruding from the wire portions 19 face each other, and the mounting pieces 18, 18 at each outer end are inserted into the split groove 6.
The wire portion 1 is fitted into the wire portion 1, and the coil winding portions 17, 17 are wound around the spring support rod 5 to face each other.
9 and 19 are brought into contact near the center of the lower surface of the spring hanging piece 12 to exert respective spring elasticity on the movable pieces 10 and 10, respectively.

A preferred embodiment of the present invention is described in the next section.

(Example) Figures 1 to 4 show examples of the present invention, in which support shoulders 2 at the upper ends of support legs protruding from below on one side of the terminal block main body 1 on the power supply side and the load side. , 2 is provided, screw holes 8, 8 and holes 9, 9 are provided in the terminal board, and a U-shaped vertical groove 3 formed on the lower surface of the terminal board 7 is formed in the terminal block body 1. A pair of bending movable pieces 10, 10 on the power supply side and the load side
The connecting vertical pieces 11, 11 are slidably passed through the holes 9, 9, and the spring hanging piece 1 at the lower end of the connecting vertical pieces 11, 11 is inserted.
2 and 12 protrude from the lower surface of the terminal plate, and a spring support rod 5 with a groove 6 provided below the center of the terminal plate 7 protrudes.

The pair of movable pieces 10, 10 on the power supply side and the load side are arranged such that the spring hook pieces 12, 12 at the lower ends of the connecting vertical pieces 11, 11 are the lower surfaces of the screw holes 8, 8 of the terminal plate 7, and the connecting vertical pieces 11
The pressing piece 13 at the upper end is the upper surface of the screw hole 8 of the terminal board 7, and the through hole 14 that matches the pressing piece 13 above the screw hole 8
is provided, and a connecting screw 15 screwed into the screw hole 8 is passed through the through hole 14 to support it in a hanging manner.

Reference numerals 16 and 16 denote coil springs constituting the main part of the present invention, in which a mounting piece 18 is provided at one end of the coil winding part 17 in the diametrical direction of the coil winding part, and a mounting piece 18 is provided in the diametrical direction of the coil winding part 17. A straight wire portion 19 is protruded, and an elastic contact point 20 is provided by bending the wire portion.

The coil springs 16, 16 are used as a pair, one for the power supply side and one for the load side, and each wire portion 19,
19 are made to face each other as shown in FIGS. 2 and 4, and the mounting pieces 18, 18 are combined into a pair with the mounting pieces 18, 18 facing outward from each other, and the mounting pieces 18, 18 are inserted into the grooves of the spring support rod 5. 6 to prevent rotation, and the coil winding portions 17, 17 are sequentially fitted into the spring support rod 5 to form elastic contact points 20, 2 of the respective wire portions 19, 19.
0 is brought into elastic contact with the lower surface of each spring hanging piece 12, 12 of the movable piece 10 on the power source side and the movable piece 10 on the load side.

(Function of the invention) The present invention has the above-mentioned configuration, and the coil spring 1
Two pieces of 6 and 16 are used, one for the power supply side and one for the load side.
Each mounting piece 18, 18 is inserted into the split groove 6 to prevent rotation, and the wire portions 19, 19 are made to face each other.
Since the power supply side is in elastic contact with the lower surface of the spring hook 12 of each of the load side movable pieces 10, 10 as shown in FIG. When the hanging piece 12 comes into elastic contact with the lower surface of the central part 12a in the front-rear direction, and when one or both of the connecting screws 15 are screwed back upward from the screw hole 8 of the terminal plate 7, the (first
), the wire portion 19 is the center portion 12 of the spring hanging piece 12
A spring action is produced which causes the movable pieces 10 to slide up on the lower surface of the movable pieces 10 as shown in the left side of FIG. 1.

(Effect of the invention) With the above-described structure and operation, the present invention has two coil springs 16, 16 that act separately on the movable pieces 10, 10 on the power supply side and the load side, respectively, on the other side of the coil winding portion 17. The wire portions 19, 19 protruding from the coil winding portions 17, 17 are arranged so as to face each other.
The wire portion 1 is fitted into the spring support rod 5, and the mounting pieces 18, 18 are fitted into the split groove 6 to prevent rotation.
9, 19 are brought into elastic contact with the lower surfaces of the spring hanging pieces 12, 12 of the movable pieces 10, 10 on the power supply side and the load side, and the elastic contact is made at the center portions 12a, 12a in the longitudinal direction of the spring hanging pieces 12, 12. , so when the movable pieces 10, 10 are allowed to rise, the line portions 19, 1
The movable piece 1 stands up almost as shown on the left side of FIG.
0 and 10 are not tilted in the front-rear direction perpendicular to the length direction of the terminal plate 7, and the spring action for raising is achieved by using a pair of coil springs from both ends of the winding part of the conventional single coil spring. This has the effect of stabilizing the spring action compared to a wire part that protrudes from the front and rear parts.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention; FIG. 1 is a front view, FIG. 2 is a partial perspective view, FIG. 3 is an isolated oblique view of the terminal plate 7 and movable pieces 10, Figure 4 is a plan view of the main part. FIG. 5 is a plan view of a coil spring of a conventional terminal block, and is compared with FIG. 4. 1 → terminal block body, 3 → vertical groove, 4 → wall, 5 → spring support rod, 6 → split groove, 7 → terminal plate, 10 → movable piece, 11 → connecting vertical piece, 12 → spring hanging piece, 13 → Pressing piece, 15 → Connection screw, 16 → Coil spring, 1
7 → Coil winding part, 18 → Mounting piece, 19 → Wire part.

Claims (1)

[Scope of utility model registration request] From the U-shaped bend to the vertical grooves 9, 9 provided in a piece of terminal plate 7 that passes between the support shoulders 2, 2 at the upper end of the support legs protruding from the power supply side and load side on one side of the terminal block main body 1. A pair of movable pieces 10, 10 on the power supply side and the load side
The connecting vertical pieces 11, 11 are slidably passed through, the spring hanging pieces 12, 12 at the lower ends of the connecting vertical pieces 11, 11 are protruded from the lower surface of the terminal plate 7, and a dividing groove 6 is formed below the center of the terminal plate 7. The spring support rod 5 is protruded, and
The wire portion 19 of the two coil springs 16, 16 is provided with a mounting piece 18 projecting from one end of the coil winding portion 17 toward the center of the winding, and having a wire portion 19 projecting from the other end.
Mounting pieces 18, 18 on each outer end with 19 facing each other.
is fitted into the split groove 6, and the coil winding parts 17, 17 are wound around the spring support rod 5, and the facing wire parts 19, 19 are brought into contact near the center of the lower surface of the spring hanging piece 12. Move each spring elasticity to the movable piece 1
A terminal block characterized in that it has different effects on 0 and 10.