JPS59189573A - Terminal connecting unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a terminal connecting device in which a screw does not fall off, and particularly to a terminal connecting device that stably holds a screw attached to a movable member in two positions: an upper limit position and a lowered position.

This type of conventional terminal connection device has a structure in which a movable member that supports screws for fixing the terminal and is slidably supported across the terminal board is constantly pressed outward by a helical spring. Because of this, the helical spring is constantly pressing against the movable member, and when screwing the screw into the female thread of the terminal board, the lead wire must be fixed while pressing the screw against the restoring force of the spring. When a large number of terminal connecting devices are installed together, it is necessary to individually fix the lead wires against the restoring force of the spring, which has the disadvantage of making the work extremely troublesome.

This invention was invented for the purpose of solving the above-mentioned drawbacks.

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 shows a front view of an embodiment of the invention.

The terminal block main body 1 is integrally molded from plastic, and includes a partition 2 for ensuring electrical insulation from other adjacent terminal connection devices, a central partition wall 3 that divides the partition into left and right halves, and a partition between the left and right sides of the partition. A left end wall 4 and a right end wall 5 provided at both ends, a rail mounting portion 6 provided below the partition portion 2,
and a convex portion 7 for fitting with another adjacent terminal connecting device.
and a recess (not shown) on its back are integrated.

The terminal board 8 is a rectangular flat plate made of a conductor supported by the central partition wall 3 and the left and right end walls 4 and 5, and has an 8A female thread on both the left and right sides.
, 8B are carved, and the movable members 9, 10 are in contact with the central partition wall.
Cuts 8C and 8D are formed for passing through. The movable members 9 and 10 have cuts 8C formed in the terminal plate 8,
A pair of leg pieces 91, 91 elastically supported by 8D;
101, 101 extend downward, and pressing parts 92, 102 are provided on the upper side parallel to the terminal plate 8, and the neck of the screw 11 screwed into the center hole of the pressing part and the spring washer are attached. 12 is rotatably supported. In addition, stoppers 91a, 91a, 101a, 101a are provided at the lower ends of the leg pieces 91, 91, 101, 101 to prevent them from coming off from the terminal board 8. The procedure for attaching the movable members 9, 10 to the terminal block main body 1 is to arrange the movable members 9, 10 in symmetrical positions to each other as shown in FIG. 8 cut 8
C, 8D, and push it into a predetermined position together with the terminal board 8 from the front side of the terminal block main body 1 to attach it.

The left side of FIG. 1 shows a state in which the lead wires are not connected. The stopper 91a of the movable member 9 is at the upper limit position where it contacts the terminal plate 8. In this state, the screw 11 does not fall off from the pressing part 92 of the movable member 9, the tip of the screw faces the female thread 8A, and the lead wire 13 is placed between the tip of the screw and the upper surface of the terminal plate 8.
This is done so that there is a gap that allows for insertion. The right side of FIG. 1 shows the state in which the lead wire 13 is connected. Terminal board 8
and the pressing part 102 clamps the lead wire 13, and the movable member 10
has descended to the lower limit position.

In this invention, the user pulls up the movable member 9 to the upper limit position where the stoppers 91a, 91a contact the terminal plate 8 as shown in FIG. 3(a), inserts the lead wire 13, and then When pressed down, the screw 11 immediately moves to the lowered position shown in figure (b), and the screw 11 is tightened in the state shown in figure (b).

In this invention, as described above, the screw attached to the movable member is stably held in two positions, the upper limit position and the lowered position. The work involves raising all the movable members of the terminal connection device to the state shown in Figure 3 (a), then inserting the lead wires one after another and simultaneously holding them in the state shown in Figure 3 (b), and finally tightening the screws. Since the lead wires can be connected during the process, the work of connecting the lead wires of a large number of terminal connecting devices can be easily performed.

Furthermore, since the number of parts is small and the structure is simple compared to the conventional example using a helical spring or the like, each part can be assembled very easily.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of the present invention, FIG. 2 is an exploded perspective view of the essential parts, and FIG. 3 is an explanatory view of the operation of the present invention. 1...Terminal block body, 3...Central bulkhead, 8...
...Terminal board, 8A, 8B...Female screw, 8C,
8D... cut, 9, 10... movable member,
11... Screw, 91, 101... Leg piece. Patent applicant Izumi Electric Co., Ltd.

Claims (1)

[Claims] A terminal board that is inserted across a partition wall provided at the center of the terminal board, and has both ends engaged with pedestals forming cavities provided on both sides of the lower part of the partition wall, perpendicular to the longitudinal direction of the terminal board. The movable member includes a pair of leg pieces that are elastically clamped and supported in notches formed oppositely on both sides in the direction in which the movable member A terminal connecting device characterized in that a screw having a retaining portion attached to the terminal plate can be screwed into screw holes on both sides of the terminal plate.