JPH0455424Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a terminal block fixing bracket for attaching and fixing a terminal block from both ends on a terminal block fixing rail attached to a power distribution board or the like.

Conventional technology For distribution boards, etc., where there are many locations for electrical wiring, many terminal blocks are normally used as relay terminals. The terminal blocks at both ends of the terminal blocks are connected and fixed using terminal block fixing fittings, thereby reducing the effort required to attach a plurality of terminal blocks to a power distribution board or the like.

FIG. 4 is a side view and a front view of the terminal block fixing metal fitting, both showing how it is attached and fixed to the terminal block fixing rail.

There, protruding crimping pieces 41 of the terminal block fixing rail 40 are provided at the bottom of both ends of the fixing metal body 10 which has a backing plate 13 to which the side surface of the terminal block (not shown) is applied.
Bending support member 11 that supports a and 41b from below
a, 11b are arranged in series, and a rail insertion groove 1 formed by the bending support members 11a, 11b.
A cut groove 122 is provided on the right edge portion of FIG. Furthermore, a bending presser plate 50 that can be moved slightly in the vertical direction is attached to the lower surface side of the fixing metal body 10, and when the screws 30a and 30b screwed onto the upper surface of the fixing metal fitting body 10 are tightened, the bending presser plate 50 When the plate 50 is pushed down, the protruding crimping pieces 41a and 41b are simultaneously pressed against the bending support members 11a and 11b in such a way that they are sandwiched, and thus the terminal block fixing rail 40 is fixedly attached to the terminal block fixing rail 40. ing.

Problems to be Solved by the Invention However, in the case of the above conventional example, the following drawbacks have been pointed out. In other words, although it is designed to be able to be set even from the middle of the terminal block fixing rail 40, if the terminal block fixing bracket is not pressed sufficiently against the rail side during the installation process, the protruding crimp piece on one side will not be in its normal state. However, there was a problem in that the other protruding crimp piece got stuck in the cut groove, so it could not be properly installed as shown in Figure 4, but was installed incorrectly as shown in Figure 5. This process of holding down is a hassle for beginners and even experienced workers, but it can be difficult to improve work efficiency when a large number of terminal block fixing brackets need to be installed and fixed. It becomes a problem.

The present invention has been devised in view of the above circumstances, and an object of the present invention is to provide a terminal block fixing fitting that can solve the above-mentioned problems when attaching and fixing to a terminal block fixing rail.

Means for Solving the Problems The terminal block fixing fitting according to the present invention includes a fixing fitting main body, an elastic presser plate, and a screw, and the fixing fitting main body is used as a stopper to which the side surface of the terminal block is applied. A plate, a pair of bending support members formed at the lower end thereof, and a rail insertion groove formed by the bending support members are formed, and one side of the inner surface of the bending support member has its lower surface crimped to protrude from the terminal block fixing rail. The first contact surface that comes into contact with the piece is cut out in a substantially U-shape, and the inner surface of the other side has a cut groove formed at the top, and a downward sliding surface continuous with the cut groove. is formed, followed by a second contact surface having the same height as the first contact surface,
The holding plate has both ends bent upward to form a substantially U-shape as a whole, and a U-shaped bent part is formed on the side with the cut groove, so that when the protruding crimping piece is crimped and fixed, , when one of the protruding crimp pieces is inserted into the cut groove via the holding plate and then the other protruding crimp piece is fitted into the first contact surface, the elasticity of the bent portion causes the one protruding crimp piece to The screw momentarily slides down the sliding surface from the cut groove and contacts the second contact surface, and the screw is screwed into the screw hole provided in the terminal block fixing metal body, and the terminal block is attached to the terminal block fixing rail. The main body of the fixture is fixed.

Function When crimping and fixing the protruding crimp pieces, insert one of the protruding crimp pieces into the cut groove via the holding plate, and then fit the other protruding crimp piece into the first contact surface. Due to the elasticity of the bent portion, one of the protruding crimp pieces momentarily slides down the sliding surface from the cut groove and comes into contact with the second abutment surface, and the screw is inserted into the screw hole provided in the terminal block fixture body. The main body of the terminal block fixing fitting is fixed to the terminal block fixing rail by screwing it in.

Embodiments Hereinafter, embodiments of the terminal block fixture according to the present invention will be described with reference to the drawings. Figure 1 is a side view and front view of the terminal block fixing bracket showing how it is attached and fixed to the terminal block fixing rail, and Figure 2 is a side view and front view showing how it is attached and fixed to both sides of the terminal block. FIG. 3 is an explanatory view showing the process of attaching and fixing the terminal block fixture to the terminal block fixing rail.

As shown in Fig. 2, a plurality of terminal blocks 50 are set on the terminal block fixing rail 40 attached to the switchboard panel, and terminal block fixing fittings A are respectively attached and fixed on both sides of the terminal block fixing rail 40. The terminal block 50 is now positioned and fixed on the terminal block fixing rail 40. Next, details of the terminal block fixture A will be explained with reference to FIG.

The protruding crimping pieces 41a and 41b (a pair of protruding crimping pieces) of the terminal block fixing rail 12 are supported from below at the bottom of both ends of the fixture main body 10, which has a backing plate 13 to which the side surface of the terminal block 50 is applied. Bending support members 11a and 11b (a pair of bending support members) are arranged in series, and this bending support member 11
The protruding crimp piece 41 of the terminal block fixed rail 12 is attached to the bending support member 11a, which is the left side surface of the rail insertion groove 12, which is the space formed by
A substantially U-shaped notch 111a is formed, which serves as a first contact surface 112a that a contacts. On the other hand, the right side of the bending support member 11b has a cut groove 12 in the upper part.
2 is formed, and a downward sliding surface 122b is formed continuously to the cut groove 122. Furthermore, a second contact surface 122c having the same height as the first contact surface 112a is formed following the sliding surface 122b. At both ends of the upper surface of the terminal block fixture main body 10, both ends of the holding plate 20 (retaining notches 22
a, 22b) to slidably receive the notch 14
a and 14b have been established. On the upper surface of the terminal block fixing fitting main body 10, protruding crimp pieces 41a and 41b of the terminal block fixing rail 40 are provided.
The screws 30a and 30b are screwed at corresponding intervals of .

The holding plate 20 is an elastic plate formed by bending both ends of a steel plate or the like substantially upward, and has a retaining notch 22 formed at the bent end.
a, 22b into the notch 14a of the fixing fitting main body 10,
14b, so that they are slightly movable in the vertical direction and do not fall off from the fixture main body 10 (see FIG. 1). In addition, the middle part of the holding plate 20 is bent once downward into a U-shape to form a bent part 21, and when the terminal block fixing rail 40 is inserted into the rail insertion groove 12, the protrusion that comes into contact The crimp piece 41b is biased toward the left in the figure.

Next, the principle by which the terminal block fixing fitting A configured as described above can be attached and fixed to the terminal block fixing rail 40 will be explained with reference to FIG. 3.

FIG. 3a shows the state before the terminal block fixing fitting A is attached and fixed to the terminal block fixing rail 40. In this state, the screws 30a and 30b are loosened, and the presser plate 20 is positioned at the lowest position due to gravity. Then, the terminal block fixing fitting A is slightly tilted, and the terminal block fixing rail 40 is inserted diagonally from below.

Then, as shown in FIG. 3b, the protruding crimp piece 41b
is inserted into the cut groove 122, the protruding crimp piece 41
The terminal block fixed rail 40 is inserted into the rail insertion groove 1 without being caught on the lower part of the bending support member 11a.
It will be inserted into 2. In other words, the cut groove 122 is formed on the right side of the rail insertion groove 12 in the figure.
is a play space for the protruding crimp piece 41b to escape when the terminal block fixing rail 40 is inserted obliquely from below. This means that the terminal block fixing fitting A can be set even in the middle of the terminal block fixing rail 40.

Moreover, when the terminal block fixing rail 40 is inserted into the rail insertion groove 12, the holding plate 20 is elastically deformed, especially the bent portion 21 is compressed, and as a result, the terminal block fixing bracket A is moved to the right side in the figure. I will have to move. In other words, when the terminal block fixed rail 40 is completely inserted into the rail insertion groove 12, the protruding crimp piece 41b is biased in the direction of separating from the cut groove 122, so that the protruding crimp piece 41a
At the same time as the contact surface 112a contacts the first contact surface 112a, the protruding crimp piece 41b slides down the sliding surface 122b and successfully contacts the second contact surface 122c (FIG. 3c).
reference).

When the screws 30a, 30b are further tightened in this state, the tips of the screws 30a, 30b protruding from the back surface of the fixture main body 10 push down the holding plate 20, and at the same time bend and support the protruding crimp pieces 41a, 41b in such a way as to sandwich them. It is pressed against the members 11a and 11b, so that the terminal block fixing fitting A is attached and fixed to the terminal block fixing rail 40 (see FIG. 1b).

Therefore, in the case of this embodiment described above, the fixture main body 10 and the presser plate 20 can be manufactured separately, and can be attached to the fixture main body 10 with one touch by using the elastic force of the presser plate 20. Therefore, the terminal block fixing metal body can be fixed to the terminal block fixing rail without fail in the normal state.

Note that the terminal block fixture according to the present invention is not limited to the above-mentioned embodiment, and for example, a presser plate may be fixed to the lower surface of the fixture main body. Further, in the case of a screw, the same effect can be obtained even with just one screw.

Effects of the invention As described above, when using the proposed terminal block fixing metal fittings,
By simply inserting the terminal block fixing rail into the rail insertion groove, the position of the pair of bending support members relative to the pair of protruding crimp pieces is automatically corrected. This will save you the trouble of installing and fixing it. Therefore, even a novice worker can easily and reliably install and secure the terminal block fixing brackets, and when it is necessary to install and secure a large number of terminal block fixing brackets, the work efficiency can be improved. You will be able to do that.

[Brief explanation of the drawing]

FIG. 1 to FIG. 3 are explanatory diagrams of embodiments of the terminal block fixing fitting according to the present invention.
The figure shows a side view and a front view of the terminal block fixing bracket, showing how it is attached and fixed to the terminal block fixing rail. Figure 2 also shows how it is attached and fixed to both sides of the terminal block. A top view of the terminal block fixing bracket, Figure 3 is a diagram showing the process of attaching and fixing the terminal block fixing bracket to the terminal block fixing rail, and Figure 4 shows the process of attaching and fixing the terminal block fixing bracket to the terminal block fixing rail. FIG. 2 is a side view and a front view of a conventional terminal block fixing metal fitting, both showing how the terminal block is installed. FIG. 5 is a front view showing a state in which the terminal block fixing metal fitting is fixed to the terminal block fixing rail in a distorted manner. A...Fixing metal fitting for terminal block, 10...Fixing metal fitting body, 11a, 11b...Bending support member, 12...
Rail insertion groove, 122... cut groove, 20... presser plate, 21... bending part, 30a, 30b... screw, 40... fixed rail for terminal block, 41a, 41
b...Protruding crimp piece, 50...Terminal block.

Claims (1)

[Scope of utility model registration request] The fixing fitting body includes a holding plate having elasticity, and a screw, and the fixing fitting main body includes a holding plate to which the side surface of the terminal block is applied, a pair of bending support members formed at the lower end thereof, and a bending support member. A rail insertion groove is formed, and one side of the inner surface of the bending support member is cut out in a substantially U-shape with the lower surface serving as the first contact surface that contacts the protruding crimp piece of the terminal block fixing rail. At the same time, a cut groove is formed on the upper part of the inner surface of the other side, and a downward sliding surface is formed continuously to the cut groove, and a sliding surface is formed at the same height as the first contact surface. A second abutting surface is formed, and both ends of the presser plate are bent upward to form a substantially U-shape as a whole, and a U-shaped bent portion is formed on the side with the cut groove. When crimping and fixing the protruding crimp pieces, one of the protruding crimp pieces is inserted into the cut groove through the holding plate, and then the other protruding crimp piece is fitted into the first contact surface. Due to the elasticity of the bent portion, one of the protruding crimping pieces momentarily slides down the sliding surface from the cut groove and comes into contact with the second abutment surface, and is inserted into the screw hole provided in the terminal block fixture body. A fixture for a terminal block, characterized in that the body of the fixture for a terminal block is fixed to a fixing rail for a terminal block by screwing in a screw.