JPS5911410Y2 - terminal block - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a terminal block for connecting electric wires used in relay parts of electric circuits, etc.

Conventionally, there have been devices of this type as shown in FIGS. 1 and 2.

In the figure, 1 is a terminal block, 2 is an insulating partition, and 3 is a symbol piece, which indicates the line symbol of the electric wire or cable to be connected.

4 indicates a terminal through which current passes, and 5 indicates a tightening screw. 4 to 7 are diagrams showing the state in which these terminal blocks 1 are installed on the switchboard 7, and FIGS. 4 and 5 are examples in which the terminal blocks 1 are installed vertically, and FIGS. The figure shows an example where it is installed horizontally.

In Figures 1 and 2, an electric wire or cable (hereinafter referred to as an electric wire) is connected to a terminal 4 via an attached crimp terminal (not shown).
be tightened.

The number of wires connected to terminal block 1 in the π direction is
Generally, there is a plurality of wires, and in order to prevent incorrect connection of each wire, a symbol piece 3 with a wire symbol 6 as shown in Fig. 3 is written.
is attached to the recess 13 of the terminal block 1.

The terminal block 1 has mounting holes 1b at both ends, and the fourth
7, the mounting surface 1a of the terminal block 1 is attached to the mounting surface 8a of the mounting frame 8 in the switchboards 7,
are attached and installed.

The conventional terminal block 1 is constructed as described above, and has the disadvantage that the line symbol 6 written on the symbol piece 3 is difficult to read when mounted on the switchboard 7.

That is, the terminal block 1 is generally installed on the switchboard 7 as shown in FIGS. 4 to 7 due to its structure, but the surface of the line symbol 6 is perpendicular to the direction of the operator's or maintenance person's eyes 9. It was not possible to read the line symbol 6 easily.

In order to easily read this line symbol 6, in the examples shown in Figures 4 and 5, it is necessary to insert one's body inside the switchboard, and as is well known, there is a risk of contact with the fixtures installed inside the switchboard, electric shock, etc. It could have been dangerous.

On the other hand, in the cases of Figures 6 and 7, the body is shortened,
It was necessary to work in an unnatural position.

This idea was made in order to eliminate the drawbacks of the conventional ones as described above. The object of the present invention is to provide a terminal block that is tilted at a predetermined angle with respect to the terminal block so that it can be easily seen by the operator.

An embodiment of this invention will be described below with reference to FIGS. 8 to 12.

In the figure, 10 is a mountain-shaped protrusion formed in the center of the partition wall 2, 11 is a display insertion groove formed on both sides of the protrusion 10, and 12 is an end inserted into this groove 11. It is a display body as shown in FIG. 12, which is bent at the center to form a mountain shape.

This display body 12 is made of paper or the like, and a line symbol 6 is displayed on any one of the folded pieces.

12a is the display surface of the line symbol 6.

In this way, the display surface 12a of the display body 12 is inclined at a predetermined angle with respect to the mounting surface 1a of the terminal block 1 on the mounting frame 8, so that the display surface 12a of the display body 12 is inclined at a predetermined angle, as shown in FIG. When mounted on the switchboard 7, the display surface 12a of the display body 12 is at an angle close to a right angle with respect to the operator's eyes 9, as shown in FIG.

Therefore, the line symbol 6 can be easily read, and there is no need for the operator to put his/her body into the switchboard 7 or to face the display 12 in an unnatural posture such as crouching down, thereby improving safety. It is also advantageous from the perspective of

It goes without saying that the same effect as described above can be obtained even if a terminal block is attached in the same manner as in the conventional FIGS. 4 and 5.

FIG. 13 shows another embodiment of this invention, in which the terminal block 1 has almost the same shape as the conventional example shown in FIGS. 1 and 2, but the display body 12 has a cross section. is shaped like an equilateral triangle, and the display surface 12a is arranged to face the line of sight of the operator.

Since the terminal block 1 is similar to that of the conventional example, the existing product can be freely modified by replacing only the display body 12.

FIG. 14 shows still another embodiment, in which the display body 12 has a right triangular cross section and is hollow inside.

In this case, if the mounting surface to the terminal block 1 is C, the display surface 12a may be either A or B.

Also, when changing the connection of the electric wires, move the display surface 12 a to B.
The line symbol 6 can be changed from C to C, and the B side can be used as the mounting surface to the terminal block, making it easy to change the line symbol 6.

It goes without saying that the position of the line symbol 6 on the display body 12 shown in FIG. 12 can be changed from the D side to the E side in the same way.

As described above, according to this invention, the display surface of the display body attached to the terminal block is aligned with the mounting surface of the electrical equipment.
Since it is tilted at a predetermined angle, the line symbol to be written on the display can be written on the display surface in a direction that is easily visible to the operator, making it easy to monitor the terminal block and preventing the line symbol from being overlooked or misunderstood. can be avoided.

[Brief explanation of drawings]

Figure 1 is a front view of a conventional terminal block, Figure 2 is a sectional view taken along line II-II in Figure 1, Figure 3 is a perspective view of a conventional symbol piece, and Figures 4 and 6 are conventional terminal blocks. 5 is a side view of FIG. 4, FIG. 7 is a side view of FIG. 6, FIG. 8 is a front view of a terminal block according to an embodiment of this invention, and FIG. The figure is a sectional view taken along the line IX-IX in Figure 8, Figure 10 is a front view of the switchboard with the terminal block shown in Figure 8 installed, Figure 11 is a side view of Figure 10, and Figure 12 is an example of this invention. FIG. 13 is a sectional view of a terminal block of another embodiment, and FIG. 14 is a perspective view of a display according to still another embodiment. 1... Terminal block, 1a... Its mounting surface,
6... Line symbol, 7... Switchboard, 12... Display body,
12 a...display surface. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] Attach a display that displays the wire symbol of the wire to be connected,
In terminal blocks attached to electrical equipment,
A terminal block characterized in that a display surface of the display body is inclined at a predetermined angle with respect to a mounting surface of the electric device.