JP2000012118A - Simple mount type terminal block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simple mount type terminal block by which a number of screw terminals can be easily and surely connected without a great deal of labor. SOLUTION: A terminal block comprises two opposite hard rubber plates 4, the interterminal contacts 5 mounted on the opposite faces of two hard rubber plates 4, the metal fittings 6 for fixing the screw terminals inserted into the interterminal contacts 5, the buttons 2 expanding the interterminal contacts 5 for drawing out a terminal, a terminal block body 1 in which the buttons 2 for drawing the terminal, the hard rubber plates 4 and the interterminal contacts 5 are accommodated, and a terminal inlet 3 for inserting the screw terminals 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal block for fixing a screw terminal, and more particularly to a terminal block for easy mounting.

[0002]

2. Description of the Related Art Conventionally, when fixing a screw terminal to a terminal block, the screw terminal is superimposed on the contact between terminals, a screw of a suitable size is passed from above, and the screw and the terminal contact are cut. It is fastened and fixed with the screw.

[0003]

The conventional terminal block has the following problems.

(1) There is no problem in the case where the number of screw terminals to be fixed is small, but in the case where the number is large, the operation is troublesome and the labor is enormous, causing an increase in product cost.

(2) A terminal may come off due to loosening of a screw or the like, which has caused a product defect.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned disadvantages of the prior art and to provide a simple mounting type terminal block which can easily and reliably connect a large number of screw terminals without much labor. To provide.

[0007]

In order to achieve the above object, the present invention provides two opposing hard rubber plates, an inter-terminal contact provided on an opposing surface of the two hard rubber plates, and A fixing bracket for fixing the screw terminal inserted into the inter-terminal contact, a terminal extraction button for expanding the inter-terminal contact, a terminal extraction button, the hard rubber plate, and the inter-terminal contact. A terminal block main body to be housed and a terminal insertion port for inserting the screw terminal are provided.

The fixing bracket is embedded and fixed in one of the two opposed hard rubber plates, and the length thereof reaches the other hard rubber plate of the two opposed hard rubber plates. Also, the cross-sectional area is reduced toward the tip, and the angle at which the screw terminal and the fixing bracket come into contact is approximately 45 degrees on the side where the screw terminal is inserted, and the opposite side is It was configured to be approximately 90 degrees.

The terminal insertion opening is formed by a rectangular hole provided in the terminal block main body and a notch of an arbitrary shape provided at an end of the two opposed hard rubber plates.

The hard rubber plate is made of chloroprene rubber and has a hardness of about 80.

The terminal block main body is formed by mechanically fitting a plastic housing having an irregular shape with an arbitrary shape and another plastic housing having an uneven shape with the same shape as the irregular shape.

[0012] The terminal pull-out button is configured so that it can be pushed in by a notch of an arbitrary shape provided at the end of the two opposing hard rubber plates.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an internal structural view showing one embodiment of a simple mounting type terminal block of the present invention. FIG. 2 shows FIG.
FIG. 3 is a front sectional view of FIG. 1, and FIG. 4 is a side sectional view of FIG. FIG. 3 shows a case where the screw terminals are inserted at the same time, and FIG. 4 shows a state where the screw terminals are removed at the same time.

The simple mounting type terminal block comprises a terminal block main body 1, a terminal extraction button 2, a terminal insertion port 3, a hard rubber plate 4, an inter-terminal contact 5, and a fixing bracket 6. You. The terminal block main body 1 is made of plastic and can be divided into two housings. An uneven portion having an arbitrary shape is provided on a part of the outer periphery of one plastic housing, and the uneven portion is mechanically fitted to another plastic housing having the same uneven portion. Inside the terminal block main body 1, two hard rubber plates 4, a terminal contact 5, and a terminal extraction button 2
And the fixing bracket 6 are stored.

The interterminal contacts 5 are composed of two upper and lower pieces, each of which is bonded to the hard rubber plate 4. Since the dimension of the inter-terminal contact 5 and the two hard rubber plates 4 is equal to the height of the terminal block main body 1, when the screw terminal 7 is inserted into the inter-terminal contact 5, the rigid rubber plate 4 Pressure is applied to the screw terminal 7 by elasticity.

The fixing bracket 6 is embedded and fixed in one hard rubber plate 4 and is characterized by its cross-sectional shape.
That is, when viewed from the front, as shown in FIG. 3, the direction in which the screw terminal 7 is inserted is gradually tapered, and the angle at which the screw terminal 7 contacts the fixing bracket 6 is approximately 45 degrees. It has become. On the side opposite to the direction in which the screw terminal 7 is inserted, the angle at which the screw terminal 7 contacts the fixing bracket 6 is approximately 90 degrees. Further, when viewed from the side, as shown in FIG. 4, there is no left-right directionality and the tip has a rounded shape. And the length of the fixing bracket 6 is
It reaches another hard rubber plate 4.

The terminal insertion opening 3 has a rectangular hole provided on a side surface of the terminal block main body 1 and a notch of an arbitrary shape provided at an end of the two hard rubber plates 4.
The screw terminal 7 to which the electric wire 8 is connected is inserted from the terminal insertion opening 3.

The button 2 for pulling out the terminal is configured to be able to be pushed by a notch of an arbitrary shape provided at the end of the two opposed hard rubber plates 4. The button 2 for pulling out the terminal is provided for pulling out the screw terminal 7 while pushing it in. When the pressing is stopped, the button 2 for pulling out the terminal returns to its original shape, its end face shape, material, surface friction coefficient, etc. Is taken into account.

The operation for inserting the screw terminal 7 will be described. As can be understood from FIG. 3, the screw terminal 7 inserted from the terminal insertion opening 3 is guided to the upper and lower terminal contacts 5 mounted inside the terminal block main body 1, and the fixing metal 6 Move to the part. When the distal end of the screw terminal 7 comes into contact with the fixing metal 6 and the insertion force is further applied, the fixing metal 6 is moved by the distal end of the screw terminal 7 due to the characteristic shape of the fixing metal 6. The hard rubber plate 4 is moved upward while repelling the elasticity of the hard rubber plate 4. When the screw terminal 7 is further inserted, the tip of the fixing metal fitting 6 fits into the hole of the screw fixing terminal 7, and the force for moving the fixing metal fitting 6 upward is released. And this time, the screw terminal 7 is
Due to the elasticity of the hard rubber plate 4, it is firmly fixed by the fixing bracket 6.

The operation of removing the screw terminal 7 will be described. As shown in FIG. 4, the terminal pullout button 2 is pushed into the terminal block main body 1, and the interterminal contacts 5 are spread. At this time, the fixing bracket 6 is also pushed upward, so that
The screw terminal 7 can be pulled out when the tip of the fixing bracket 6 is pushed up above the hole of the screw terminal 7.

The material of the hard rubber plate 4 is preferably chloroprene rubber from the viewpoint of versatility and economy, and its hardness is suitably about 80. However, it can be appropriately selected depending on the size and shape of the screw terminal 7 to be inserted. In addition, the dimensions, particularly the length and the cross-sectional area of the fixing bracket 6 are as follows.
By changing according to the dimensions of the screw terminals 7 to be inserted, many types of screw terminals can be connected.

[0022]

The simple mounting type terminal block according to the present invention employs a method of fixing the terminals by the elasticity of the rubber plate using a hard rubber plate and a fixing metal, so that a large number of screwed terminals can be worked with much labor. Can be simply and reliably connected without the need for a connection.

[Brief description of the drawings]

FIG. 1 is an internal structural view showing one embodiment of a simple mounting type terminal block of the present invention.

FIG. 2 is an external view of FIG.

FIG. 3 is a front sectional view of FIG. 1;

FIG. 4 is a side sectional view of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Terminal base body 2 Terminal pull-out button 3 Terminal insertion slot 4 Hard rubber plate 5 Contact between terminals 6 Fixing bracket 7 Screw terminal 8 Electric wire

Claims (6)

[Claims] 1. A fixed terminal for fixing two opposing hard rubber plates, an inter-terminal contact provided on an opposing surface of the two hard rubber plates, and a screw terminal inserted into the inter-terminal contact. Metal fittings, a terminal extraction button for expanding the terminal-to-terminal contact, a terminal block main body for storing the terminal extraction button, the hard rubber plate, and the terminal-to-terminal contact, and a terminal for inserting the screw terminal. A simple mounting type terminal block comprising an insertion port. 2. A fixing bracket is embedded and fixed in one of the two opposed hard rubber plates, and its length reaches the other hard rubber plate of the two opposed hard rubber plates. The cross-sectional area is reduced toward the tip, and the angle of contact between the screw terminal and the fixing bracket is approximately 4 on the side where the screw terminal is inserted.
2. The terminal block according to claim 1, wherein the angle is 5 degrees and the opposite side is substantially 90 degrees. 3. The terminal insertion opening comprises a rectangular hole provided in the terminal block main body, and a notch of an arbitrary shape provided at an end of the opposed two hard rubber plates. The simple mounting type terminal block according to claim 1. 4. The simple mounting type terminal block according to claim 1, wherein the hard rubber plate is made of chloroprene rubber and has a hardness of about 80. 5. The terminal block main body is one in which a plastic housing having an uneven portion having an arbitrary shape and another plastic housing having an uneven portion having the same shape as the uneven portion are mechanically fitted. The simple mounting type terminal block according to claim 1, wherein: 6. A terminal pull-out button, comprising:
2. A simple mounting type terminal block according to claim 1, wherein said terminal block is configured to be able to be pushed in by a notch of an arbitrary shape provided at an end portion of said two hard rubber plates.