JPH0320031B2 - - Google Patents

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 connecting device supports screws for fixing terminals and constantly presses a movable member slidably across the terminal board outwardly by a helical spring. Because of the structure, 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 against the screw against the restoring force of the spring. Therefore, when a large number of terminal connection devices are installed together, the disadvantage is that the work is extremely troublesome as it involves the work of fixing the lead wires individually against the restoring force of the spring. It was hot.

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. Left end wall 4 and right end wall 5 provided at both ends, center partition wall 3
grooves 6 recessed in the partition portion 2 in contact with both sides of the
7. A rail attachment part 8 provided below the partition part 2, a convex part 9 for fitting with another adjacent terminal connecting device, and a recess (not shown) on the back thereof are integrally formed. . The terminal board 10 crosses the central partition wall 3 that divides the partition section 2 into left and right halves, and connects to the left and right end walls 4,
It is a rectangular flat plate made of a conductor supported by a conductor 5, and female threads 10A, 10B are carved on both left and right sides, and cuts 10C, 10D for passing movable members 11, 12 are formed in contact with the central partition wall. The movable members 11 and 12 have a left-right symmetrical shape, and press parts 111 and 121 are formed on the upper horizontal pieces, respectively, and the necks of screws 13 and springs are formed in the central holes of the press parts 111 and 121. A washer 14 is rotatably supported. Moreover, the pressing part 111,
A guide portion 113 is provided with hanging pieces 112, 122 extending downward from one end of the guide portion 121, with the midsection of the hanging pieces 112, 122 projecting slightly more than the other portions, and slidably fitted into the groove 6 or 7. , 123, and the lower ends of the hanging pieces 112, 122 extend in a substantially perpendicular direction to form V-shaped valley-shaped bent portions 114, 12.
4 is formed. The leaf spring 15 is made of a substantially square-shaped metal plate, and has two upper and lower bulges K formed on its opposing side walls, and has a movable member 1 on its upper surface.
Notches 15A and 15B are formed for passing 1 and 12 through, and the terminal plate 10 is elastically clamped and attached to the lower central partition wall 3', which is the lower part of the central partition wall 3 divided by the terminal plate 10. The procedure for attaching the movable members 11 and 12 to the terminal block main body 1 is as shown in FIG. 10D and notch 15 of leaf spring 15
A, 15B, and are attached by pushing the terminal board 10 and leaf spring 15 into a predetermined position from the front side of the terminal block main body.

The left side of FIG. 1 shows a state in which the lead wires are not connected. In a state where the lower end bent portion 114 of the movable member 1 is fitted into the bulged portion K of the leaf spring 15, the bent portion 114 is at the upper limit position. That is, in this state, since the elastic force of the leaf spring 15 is acting in the direction of arrow A, the movable member 11 is moved between the leaf spring 5 and the partition wall 3'.
It is held in between. In this state, screw 1
3 does not fall off from the pressing part 111 of the movable member 11,
The tip of the screw faces the female thread 10A, and a gap is created between the tip of the screw and the upper surface of the terminal plate 10 so that the lead wire 16 can be inserted. The right side of FIG. 1 shows the state in which the lead wire 16 is connected. The terminal plate 10 and the pressing part 121 clamp the lead terminal, and the movable member 12 has been lowered to the lower limit position.

In this invention, the state without screws is 2.
It has the characteristic of changing depending on the street. That is, Figure 3a
As shown in FIG. 2, the movable member 11 is stably held in a position where the lower bent portion 114 of the movable member 11 is fitted into the bulge K of the leaf spring 15. Furthermore, by pressing the movable member 11 downward from the state position shown in FIG. 3a, the bent portion 114 is moved over the peak of the bulging portion K, and the bent portion 114 is bent as shown in FIG. 3b. In the lowered position where the movable member 114 is in contact with the lower surface of the bulge K, the movable member 11 is stably held in the same way as described above. Therefore, the user pulls up to the state shown in Fig. 3a, inserts the lead wire 16, presses down the movable member 1, and immediately goes to the lowered position shown in Fig. b, and then tightens the screw 13 to the state shown in Fig. 3. , at this time, the movable member 11
Since the guide portion 113 is fitted into the groove 6, it is slid along the groove 6.

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. In the work process, all the movable members of the terminal connecting device were pulled up to the state shown in Figure 3a, then the lead wires were sequentially inserted and at the same time held in the state shown in Figure 3b, and finally the screws were tightened. Since the lead wires can be connected, the work of connecting the lead wires of a large number of terminal connecting devices can be easily performed.

Furthermore, compared to conventional examples using helical springs, the number of parts is small and the structure is simple, so each part can be assembled very easily and a product can be provided at a low price.

[Brief explanation of the drawing]

Figure 1 is a front view showing an embodiment of the invention, Figure 2 is a front view showing an embodiment of the invention.
The figure is an exploded perspective view of the main parts, and FIGS. 3a and 3b are explanatory diagrams of the operation of the present invention. 1... Terminal block body, 3, 3'... Central bulkhead, 1
0...Terminal board, 11, 12...Movable member, 13...
...screw, 15...plate spring, K...bulge.

Claims (1)

[Scope of Claims] 1. In a terminal connection device in which a lead wire is screwed between a terminal plate and a movable member using a screw, the screw is rotatably supported by an upper horizontal piece pressing portion, and the screw is rotatably supported by the pressing portion of the upper horizontal piece. A movable member is formed by extending the lower end of a hanging piece that extends further downward and forms a guide part in the middle at a right angle to form a V-shaped valley-shaped bent part, and the terminal block main body is divided into left and right halves. It is a rectangular flat plate made of a conductor that is supported by the left and right end walls across the central partition wall, and female threads into which the screws of the movable member are screwed are carved on both left and right sides, and the movable member is in contact with the central partition wall. a terminal plate formed with a notch for inserting a hanging piece of the member; and a terminal plate that is elastically clamped and attached to the lower central partition wall of the central partition partitioned by the terminal plate, and the movable member is attached to the upper surface of the central partition wall. A plate spring made of a metal plate material having a substantially square shape, in which a notch for inserting a hanging piece is formed in a corresponding part of the terminal plate, and two bulges are formed in upper and lower sides of the opposing side walls that hang down from both sides of the upper surface. and a hanging piece of the movable member disposed so as to cross and support the terminal plate is elastically clamped between a vertical surface of the lower central partition wall and a side wall of the leaf spring. The movable member is moved to an upper limit position and a lowered position by fitting the bent portion of the movable member into the two bulging portions of the leaf spring formed at vertically opposing portions of the lower central partition wall. A terminal connecting device characterized in that it is configured to be stably held in two positions.