JPH0737244Y2 - Terminal block - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compact and general-purpose terminal block for fastening electric wires or crimp terminals with terminal screws.

[0002]

2. Description of the Related Art The conventional small general-purpose terminal block shown in FIGS.
A terminal block body 1 molded by an insulating material such as a synthetic resin having a protruding partition wall 2 of a strip, terminal block mounting holes 4 at both ends, and a terminal mounting portion 3 defined between the partition walls 2, and a power source side Four current-carrying metal fittings 5 having a screw hole 5a and a load-side screw hole 5b fixed to the terminal mounting portion 3 of the main body 1, and a power-side screw hole 5a and a load-side screw hole 5b of each current-carrying metal fitting 5. A plurality of (8 in the illustrated example) terminal screws 6 that are screwed into the electric wire or crimp terminals (not shown) for fastening and fixing to the current-carrying fitting 5.
The current carrying fitting 5 has a burring portion 7 which is hole-fitted in the terminal block body 1 by caulking as shown in FIG. 7 (this caulking portion is indicated by reference numeral 7a) to the body 1. It is fastened.

Further, the conventional small-sized general-purpose terminal block shown in FIGS. 9 to 11 (hereinafter referred to as the terminal block of the prior art 2) includes a plurality of, for example, five protruding partition walls 2 and terminal block mounting holes 4 at both ends. A terminal block body 1 molded with an insulating material such as synthetic resin having a terminal mounting portion 3 defined between the partition walls 2.
And four current-carrying metal fittings 5 having a power source side screw hole 5a and a load side screw hole 5b and fixed to the terminal mounting portion 3 of the main body 1.
And a plurality of screws (8 in the illustrated example) that are screwed into the power supply side screw holes 5a and the load side screw holes 5b of each of the current-carrying metal fittings 5 to fasten and fix the wires or crimp terminals (not shown) to the current-carrying metal fittings 5. And a terminal screw 6 of the above, and the current-carrying metal fitting 5 is a bent piece 8 on both sides.
Is press-fitted into both side grooves 2a, 2b of the terminal mounting portion 3 and fixed to the main body 1.

[0004]

The terminal block of the prior art 1 is assembled by pressing the current-carrying metal fitting 5 and then crimping the terminal block body 1 and then tapping the screw holes 5a and 5b. There were problems such as poor performance, poor crimping, and easy play due to mold shrinkage of the terminal block body 1.

Further, in the terminal block of the prior art 2, since the current-carrying metal fitting 5 is pressed, the screw holes 5a and 5b are tapped, and the terminal block main body 1 is temporarily assembled and mechanically press-fitted. It is bad that both side bent pieces 8 are necessary for the metal fitting 5 and the area of the metal fitting 5 with the highest material cost ratio is large, and both side grooves 2 for pressing the metal bent piece 8 into the terminal block body 1
Since it is necessary to provide a and 2b, there is a problem that the height of the terminal block body 1 cannot be reduced.

The present invention has been devised in order to solve the above-mentioned conventional problems, and the purpose thereof is to easily and surely assemble the current-carrying metal fittings to the terminal block body, which is easy to assemble, and has good manufacturing cost. To provide a cheap terminal block.

[0007]

To achieve the above object, the terminal block of the present invention is formed of an insulating material having a plurality of projecting partition walls and terminal mounting portions defined between the partition walls. A terminal block body, a current-carrying metal fitting that has a screw hole and is fixed to the terminal mounting portion of the body, and a terminal screw that is screwed into the threaded hole of the current-carrying metal fitting and that fixes an electric wire or crimp terminal to the current-carrying metal fitting. In the projection partition wall that defines the terminal mounting portion of the main body, a slit locking portion located on one side of the terminal mounting portion and a concave claw locking portion located on the other side of the terminal mounting portion are provided. Provided, one side portion of the current-carrying metal fitting is provided with an inserting portion that is inserted and locked in the slit hooking portion in a tilted temporary assembled state on the other side of the current-carrying metal fitting and in a horizontally mounted state with a table abutting, In addition, the claw hooking portion is provided on the other side of the current-carrying metal fitting when the current-carrying metal is tilted and temporarily assembled. And wherein said Tsumagake stop portion providing the cut-and-raised claws inserted and locked when mounting is pushed from above energization fitting inclined temporarily assembled positioned above.

[0008]

According to the terminal block having the above-described structure, the current-carrying metal fitting is pressed, and the screw hole is tapped. Then, the insertion portion of the current-carrying metal fitting is inserted into the slit hooking portion of the terminal block body to carry out the current-carrying. The metal fitting is set in a tilted temporary assembly state on the other side as shown in FIG. 1 (A), and the current-carrying metal fitting of this tilted temporary assembly is pushed in from above so that the insertion portion engages with the slit locking portion and It can be mounted in the state shown in FIG. 1B in which the metal fitting cut-and-raised claw is inserted and locked in the claw hooking portion.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the terminal block according to the first embodiment of the present invention will be specifically described below with reference to FIGS. This first
The terminal block of the embodiment is molded with an insulating material such as a synthetic resin having a plurality of, for example, five protruding partition walls 2, terminal block mounting holes 4 at both ends, and a terminal mounting portion 3 defined between the partition walls 2. The main body has a molded terminal block body 1, a projecting port 9 at both ends which is loosely fitted in a circular hole of the terminal block body 1, a power source side screw hole 5a and a load side screw hole 5b tapped into the projecting port. Four current-carrying metal fittings 5 fixed to the terminal mounting portion 3 of 1.
A plurality of (8 in the illustrated example) terminals screwed into the power supply side screw holes 5a and the load side screw holes 5b of each of the current-carrying metal fittings 5 to fasten and fix electric wires or crimp terminals (not shown) to the current-carrying metal fittings 5. In the one including the screw 6, the slit retaining portion 10 located on one side of each terminal mounting portion 3 and each terminal mounting portion 3 on the protruding partition wall 2 that defines the terminal mounting portion 3 of the terminal block body 1. The concave hooking portion 11 located on the other side of the
The slits are hooked on one side of the current-carrying metal fitting 5 in a temporarily assembled state where the current-carrying metal fitting is raised on the other side as shown in FIG. 1 (A) and in a horizontally mounted state in which the table abuts as shown in FIG. 1 (B). 1A is provided on the other side of the current-carrying metal fitting 5 above the claw hooking portion 11 when the current-carrying metal 5 is inclined and temporarily assembled. As shown in FIG. 1 (B), a resilient cut-and-raised claw 13 is provided to be inserted and locked in the claw hooking portion 11 when the inclined temporary assembly current-carrying metal fitting 5 is pushed in from above and mounted. It is characterized by that.

4 and 5 show a second embodiment of the present invention. In the terminal block of the second embodiment, the current-carrying metal fitting 5 is formed by a square plate having one central projecting port 9 and one screw hole 5c tapped into the projecting port. The side edge portion 12a is used as the insertion portion 12 with respect to the slit hooking portion 10, and the cut-and-raised claw 13 is provided on the opposite side. The terminal block body 1 to which this square current-carrying metal fitting 5 is mounted is according to the first embodiment. The terminal block body 1 is formed of an elongated table having a half width, so that the electric wire or the crimp terminal connected to the power source side and the load side can be simultaneously fastened and fixed by the single terminal screw 6 screwed into the screw hole 5c. This is different from the first embodiment. Other configurations and operations are the same as those of the first embodiment, and therefore, the same parts are denoted by the same reference numerals and detailed description thereof will be omitted.

[0011]

Since the terminal block of the present invention has the structure described in the scope of claims for utility model registration, the current-carrying metal fittings can be easily and reliably assembled to the terminal block body. Easy to assemble (can be assembled by hand), there is no difficulty in thread tapping, and the current-carrying metal fitting is fixed only on the top of the terminal block body, so the height of the terminal block body can be lowered and the freedom of height is increased. It has a large size (the cut-and-raised claw is as high as the head of the terminal screw, which does not affect it), and the area of the current-carrying metal fittings does not become large. Can be provided.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a main part of a terminal block according to a first embodiment of the present invention, in which FIG. Sectional drawing of the principal part of a state.

2A and 2B are configuration explanatory views showing the entire terminal block, wherein FIG. 2A is a plan view of the terminal block and FIG. 2B is a front view of the terminal block.

FIG. 3 is an explanatory view of the structure of a current-carrying metal fitting that is assembled to the terminal block of the present invention.

4A and 4B are configuration explanatory views showing an overall terminal block according to a second embodiment of the present invention, wherein FIG. 4A is a plan view of the terminal block, and FIG. 4B is the terminal block. Front view of.

FIG. 5 is a structural explanatory view of a current-carrying metal fitting assembled to the terminal block of the second embodiment.

6A and 6B are configuration explanatory views showing an overall terminal block according to the related art 1, in which FIG. 6A is a plan view of the terminal block and FIG. 6B is a front view of the terminal block.

FIG. 7 is a cross-sectional view of essential parts of a terminal block according to Related Art 1.

FIG. 8 is a structural explanatory view of a current-carrying metal fitting that is assembled to the terminal block according to the related art 1.

9A and 9B are configuration explanatory views showing an overall terminal block according to the related art 2, wherein FIG. 9A is a plan view of the terminal block, and FIG. 9B is a front view of the terminal block.

FIG. 10 is a cross-sectional view of essential parts of a terminal block according to Related Art 2.

FIG. 11 is a structural explanatory view of a current-carrying metal fitting that is assembled to the terminal block according to the related art 2.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Terminal block main body, 2 ... Projection partition wall, 3 ... Terminal mounting part, 4
... terminal block mounting hole, 5 ... current-carrying metal fittings, 5a, 5b, 5c ... screw hole, 6 ... terminal screw, 9 ... protruding port, 10 ... slit hooking portion, 11 ... claw hooking portion, 12 ... insertion portion, 13 ... Cut and raised nails.

Claims (1)

[Scope of utility model registration request] 1. A terminal block main body formed of an insulating material having a plurality of projecting partition walls and terminal mounting portions defined between the partition walls, and a terminal block body having a screw hole and fixed to the terminal mounting portion of the main body. In a terminal block including a current carrying metal fitting and a terminal screw screwed into a screw hole of the current carrying metal fitting to fasten and fix an electric wire or a crimp terminal to the current carrying metal fitting, a protruding partition wall defining a terminal mounting portion of the main body is provided. , A slit hooking portion located on one side of the terminal mounting portion and a concave claw hooking portion located on the other side of the terminal mounting portion are provided. In the inclined temporary assembling state and the horizontally mounted state in which the table is in contact with the table, there is provided an insertion portion that is inserted and locked in the slit hook portion, and the other side portion of the electricity conducting metal fitting is provided with the pawl in the inclined temporary assembling state. It is located above the latching part and pushes in the inclined temporary assembly current fitting from the top to attach it. A terminal block provided with a cut-and-raised claw which is inserted and locked in the claw hook portion at times.