JPH05226011A - Individual terminal insulating cover for terminal block - Google Patents

Abstract

(57) [Summary] [Construction] The terminal block single terminal insulating cover 1 of the present invention has a size such that it can be attached so as to cover the single terminal of the terminal block, and the ceiling plate 2 and the bottom plate 3 made of an insulating material are made of a flexible insulating material. The front plate 4 is formed into a U-shape, and the upper end of the front plate 4 is formed in the grip portion 5 projecting in a ridge shape from the ceiling plate surface, and the lower end is formed in the supporting edge 6 projecting from the bottom plate surface. 3 has a terminal screw insertion hole 7. [Effect] The front plate 4 is bent to the front by utilizing its elasticity, the ceiling plate 2 is erected vertically, and the terminal screw is screwed into the screw hole of the single terminal through the hole of the bottom plate 3 to make an incorrect connection. It can be attached to a single terminal that cannot be connected, and the terminal that cannot be connected is completely covered, preventing incorrect connection. In addition, it is possible to obtain an effect that the non-connectable terminal is not brought into contact with another terminal when some component is dropped. Furthermore, it does not give a strange appearance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal block used for wiring connection between various equipment used for process control and the like and the outside, and more particularly to prevention of erroneous connection of a single terminal.

[0002]

2. Description of the Related Art Conventionally, a terminal block does not have a device for completely insulating the individual terminals pin by pin. Therefore, if there is an individual terminal that should not be mistakenly connected when connecting wiring to the terminal, Was dangerous to.

[0003]

SUMMARY OF THE INVENTION In view of the above situation, it is an object of the present invention to provide a terminal block single terminal insulating cover that completely prevents erroneous connections, is easy to install, and does not give a strange appearance. To do.

[0004]

The terminal block single terminal insulating cover of the present invention is of a size capable of being mounted so as to cover the single terminal of the terminal block, and the ceiling plate and the bottom plate made of an insulating material are made of elastic insulating material. It has a U-shape that is joined by a face plate, and the upper end of this front plate is formed in a grip portion protruding in a ridge shape from the ceiling plate surface, and the lower end is formed in a supporting edge protruding from the bottom plate surface. It is a configuration having.

[0005]

In the terminal block single terminal insulating cover of the present invention, the terminal screw of the single terminal to be attached is removed, the terminal screw insertion hole of the bottom plate is placed in line with the screw hole, and the front plate is put on the grip part with fingertips. Bend it toward you, stand the ceiling plate vertically, remove it, and then insert the terminal screw through the through hole and lightly tighten the bottom plate. After that, by releasing the finger, the elasticity of the front plate restores the U-shape, and the ceiling plate and the front plate cover the individual terminals so as to surround them. In this state, the supporting edge at the lower end of the front plate contacts the insulator surface of the terminal block to keep the bottom plate horizontal, so there is a gap between the vertical surface of the insulator of the terminal block and the tip of the ceiling plate of this insulation cover. Absent.

[0006]

The present invention will be described in detail below with reference to the embodiments shown in the drawings.

FIG. 1 shows a terminal block single terminal insulating cover according to an embodiment of the present invention. As shown in FIG. 1, the terminal block single terminal insulating cover 1 has a width, a depth, and a height that can be attached to cover the single terminal of the terminal block, and elastically connects a ceiling plate 2 and a bottom plate 3 made of an insulating material. Having a U-shape connected by a front plate 4 made of a conductive insulating material, the upper end of the front plate 4 is formed in a grip portion 5 protruding in a ridge shape from the upper surface of the ceiling plate 2, and the lower end of the front plate 4 is formed in the bottom plate 3. Is formed on the support edge 6 protruding from the lower surface of the. In addition, a terminal screw insertion hole 7 for inserting a terminal screw of a single terminal is provided substantially at the center of the bottom plate 3.

When the terminal block single terminal insulating cover 1 of the embodiment of the present invention constructed as described above is attached to a non-connectable single terminal of the terminal block, the terminal screw 13 of the single terminal is attached.
The terminal screw insertion hole 7 of the bottom plate 3 and the terminal block conductor portion 12
2 and put the fingertips on the grips 5 to bend the front plate 4 and raise the ceiling plate 2 almost vertically to the state shown in FIG. 2, and insert the terminal screws 13 that have been removed into the terminal screws. The bottom plate 3 is lightly tightened by screwing it into the screw hole of the terminal block conductor portion 12 through the hole 7. After that, if you release your finger, the front plate 4
3, the ceiling plate 2 and the front plate 4 cover the washer 14 of the individual terminal and the head of the terminal screw 13 so as to surround the head. And at this time,
The supporting edge 6 at the lower end of the front plate 4 contacts the horizontal surface of the insulator 11 of the terminal block 10 to keep the bottom plate 3 horizontal. Prevent gaps. In addition, the support edge 6 also functions to isolate the terminal block conductor portion 12 from being touched from the outside.

FIG. 4 shows a state in which the terminal block single terminal insulating cover 1 of the present invention is attached to the non-connectable single terminal of the terminal block 10. The single terminal is completely covered and incorrect connection is completely prevented. Further, it is possible to obtain the effect of preventing a non-connectable single terminal from coming into contact with another terminal when some component is dropped. Furthermore, it is easy to install and does not give a strange appearance.

[0010]

As described above in detail, according to the present invention, a ceiling plate and a bottom plate made of an insulating material are joined together by a front plate made of a resilient insulating material in such a size that the terminal block is mounted so as to cover the individual terminals. The front plate has a U-shaped upper end, and the upper end of the front plate is formed in a grip portion projecting like a ridge from the ceiling plate surface, and the lower end is formed in a supporting edge projecting from the bottom plate surface.The bottom plate has a terminal screw insertion hole. By realizing the terminal block single terminal insulation cover, the elasticity of the front plate is used to bend it toward you, the ceiling plate is erected vertically, and the terminal screw is screwed into the screw hole of the single terminal through the hole in the bottom plate. With this simple operation, it can be attached to a single terminal that cannot be erroneously connected, and the terminal that cannot be connected is completely covered to prevent erroneous connection. Further, it is possible to obtain the effect of preventing a non-connectable single terminal from coming into contact with another terminal when some component is dropped. Furthermore, it does not give a strange appearance.

[Brief description of drawings]

FIG. 1 is an external perspective view of a terminal block single terminal insulating cover according to an embodiment of the present invention.

FIG. 2 is a perspective view for explaining a mounting procedure of the terminal block single terminal insulating cover of FIG.

3 is a side view of the terminal block single terminal insulating cover of FIG. 1 attached to the single terminal.

FIG. 4 is a perspective view showing a state in which the terminal block single terminal insulating cover of FIG. 1 is attached to a non-connectable independent terminal of the terminal block.

[Explanation of symbols]

 1 ... Terminal block independent terminal insulating cover 2 ... Ceiling plate 3 ... Bottom plate 4 ... Front plate 5 ... Grip part 6 ... Support edge 7 ... Terminal screw insertion hole 10 ... Terminal block 11 ... Insulator of terminal block 12 ... Terminal block conductor part 13 ... Terminal screw

Claims (2)

[Claims] 1. A terminal block having a size capable of being mounted so as to cover a single terminal, and having a U-shape in which a ceiling plate made of an insulating material and a bottom plate are connected by a front plate made of an elastic insulating material, and a terminal screw is inserted into the bottom plate. Single terminal insulation cover with terminal block. 2. The upper end of the front plate is formed in a grip portion projecting in a ridge shape from the ceiling plate surface, and the lower end of the front plate is formed in a supporting edge projecting from the bottom plate surface, respectively.
Insulated cover for the terminal block alone.