JP2551509B2 - Assembly terminal board - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembled terminal board for assembling a terminal block so tightly that it cannot be removed.

[0002]

2. Description of the Related Art A conventionally known assembled terminal board has a structure in which a projecting piece of one terminal block is fitted into a hole of the other terminal block or a projecting strip of one terminal block is formed in a groove of the other terminal block. It was a structure to be inserted.

[0003]

In the conventional fitting of the projecting piece and the hole or the fitting and insertion of the projecting line and the groove in the fitting portion, the dimensional accuracy for accurately matching the mutual dimensions of the fitting portion is maintained. It is difficult to do so, and there is a possibility that a fitting failure (a ridge is not inserted, there are too many gaps, etc.) may occur because the dimensions do not match, and it is difficult to mass-produce homogeneous products.

[0004]

SUMMARY OF THE INVENTION However, according to the present invention, the tapered projection of one terminal block and the dovetail groove of the other terminal block are fitted together, or the fitting projection is fitted into the projection and dovetail groove. By providing the dowel, the above-mentioned conventional problems have been solved.

That is, the present invention is provided with electric wire connecting means, respectively.
Fits two terminal blocks with a large number of built-in terminal fittings at regular intervals
One terminal on the mating surface of the terminal board
Sectional shape that fits in the dovetail groove of the other terminal block in the dovetail groove of the base
Is provided at a position where the screw positions are displaced by a half pitch.
The ridges are fitted and the dovetail groove and the ridges are provided respectively.
Characterized in that the fitting recess and the fitting projection are fitted together.
It is an assembled terminal board . Next, another invention is a terminal board in which a plurality of terminal fittings each having an electric wire connecting means are built in at a predetermined interval and are fitted with each other. The assembled terminal board is characterized in that it is fitted in a tapered dovetail groove of the other terminal block, and the fitting projection of the tapered dovetail groove is fitted in a fitting recess of the tapered projection.

According to the fitting of the protrusion and the dovetail groove as described above, the two terminal blocks cannot be separated in the left-right direction (side surface) after the fitting. If you use the fitting protrusion and the fitting hole together,
Vertical separation is also impossible.

Originally, the assembled terminal board is used when a plurality of rows of terminals are built in, so that it is impossible to form an integral type or when the die is complicated and efficient production cannot be performed. is there. Therefore, most of the terminal boards are inseparable after they are assembled once and they are one piece. Since the protrusion and the dovetail groove and the fitting protrusion and the fitting recess in the above are relative to each other, the same applies to which terminal block is provided.

[0008]

In the terminal board according to the present invention, the two terminal blocks are integrated by fitting the dovetail groove and the ridge, so that there is no risk of disconnection due to external force in the left-right direction. Further, when the dovetail groove and the protrusion and the fitting protrusion and the fitting recess are provided, they are integrated without fear of removal in any of the up, down, left and right directions. Further, when the dovetail groove and the ridge are tapered, even if there is a slight deviation in the size of the fitting portion, a tight wedge fitting can be achieved due to the deviation of the fitting position.

[0009]

Embodiments of the present invention will be described with reference to the drawings.

Inside the rectangular parallelepiped terminal blocks 1 and 2 (see FIG. 1,
2) Terminals 4 each having a U-shaped head 3 as viewed from the side are vertically inserted at predetermined intervals (FIG. 4).
A front U-shaped fastening member 5 is interposed so as to be sandwiched from above and below (FIG. 5), and the screw 5b of the upper plate 5a of the fastening member 5 is
The lower ends of the screws 7 are screwed through the supporting pieces 6 of the terminal blocks 1 and 2, and the heads 3 of the terminals 4 are respectively attached to the terminal blocks 1 and 2.
Insertion holes 9 and 10 for inserting the electric wires 8 are formed therein. On the front wall of the terminal block 1, tapered projections 11 for fitting are vertically arranged side by side at predetermined intervals, and on the rear wall of the terminal block 2, a tapered dovetail groove 12 into which the projections 1 can be fitted.
Are arranged vertically side by side. A fitting recess 13 is provided at the center of the lower portion of the protrusion 11, and a fitting protrusion 14 that fits into the fitting recess 13 is provided at the center of the lower portion of the tapered dovetail groove 12. In the figure, 20 is a nut.

In the above-described embodiment, the taper ridge 11 on the front wall of the terminal block 1 is replaced with the taper dovetail groove 1 on the back wall of the terminal block 2.
2 is fully inserted from above into the downward direction as shown by the arrow 15 (FIG. 4), and the fitting recess 13 and the fitting projection 14 are fitted together, so that the terminal blocks 1 and 2 are tightly integrated, and the vertical and horizontal The assembled terminal board 16 that cannot be removed in any direction is constructed. By inserting the distal end side of the electric wire 8 into the insertion holes 9 and 10 of the assembly terminal board 16 as shown by arrows 17 and 18 and tightening the screws 7 and 7, the lower plate 5c of the fastening metal fitting 5 is indicated by arrow 19. Rises like
The electric wire 8 is tightly attached and fixed in cooperation with the head plate 3a of the terminal 4. Therefore, the terminal board 16 that does not hinder the energization and tension
Becomes

In the above-described embodiment, the terminal block 1 is provided with the taper projection 11 and the terminal block 2 is provided with the taper dovetail groove 12. However, even if the taper projection line 11 and the taper dovetail groove 12 are reversed. There are similar effects, and the same applies to the fitting protrusion 14 and the fitting recess 13.

The projection 11 and the dovetail groove 12 do not necessarily have to be tapered.

[0014]

According to the present invention, since the fitting ridge and the dovetail groove are provided on the abutting surfaces of the two terminal blocks having the built-in terminals, they cannot be removed in the left-right direction (side view) by fitting them. It has the effect of becoming a possible integrated terminal board. Further, by forming the projection and the dovetail groove in a taper, there is an effect that a tight fit can be achieved even if there is a dimensional error. Further, since the fitting projection and the fitting recess are provided in the ridge and the dovetail groove, there is an effect that the two terminal blocks can be assembled in the upper and lower sides and the left and right directions without being detachable. Also mating both
At this time, by shifting the screw position by half a pitch,
Wires can be installed and removed easily and the wires can be rationalized.
There is also an effect that can be organized.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a plan view of the same.

FIG. 4 is a sectional view taken along line AA in FIG.

FIG. 5 is an enlarged perspective view showing the relationship with the terminal upper tightening fitting.

FIG. 6 is a front view of the same terminal block.

FIG. 7 is a partial perspective view of the same.

FIG. 8 is a front view of another terminal block.

FIG. 9 is a partial perspective view of the same.

[Explanation of symbols]

 1, 2 Terminal block 4 Terminal 5 Tightening bracket 7 Screw 8 Electric wire 11 Tapered ridge 12 Tapered dovetail groove 13 Recess 14 Protrusion

Claims (2)

(57) [Claims] 1. A terminal board in which a plurality of terminal fittings each having an electric wire connecting means are fitted at predetermined intervals, and a terminal board is fitted to the dovetail groove of one terminal board on the fitting surface of the other. a sectional shape that fits into the dovetail groove of the terminal block, with fitting the ridges mutual screw position is provided in the half-pitch shifted position, the fitting recess (13) provided with the protrusion before
An assembled terminal board characterized by fitting with a fitting protrusion (14) provided in a dovetail groove . 2. A terminal board in which a plurality of terminal fittings each having an electric wire connecting means are built in at predetermined intervals, and two terminal blocks are fitted to each other. The terminal block is fitted in the tapered dovetail groove, and the fitting recessed part (13) provided in the tapered projection is fitted with the fitting projection (14) provided in the tapered dovetail groove. Assembly terminal board.