JPH0517817Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention relates to a terminal block equipped with a wiring plate used for wiring lead wires to a large number of terminals arranged on the terminal block. The lead wire can be easily inserted into each lead wire insertion hole without bending the lead wire without requiring a forceful pressing operation, and the lead wire is designed to prevent the lead wire from coming out after insertion.

(Prior art and problems) This type of wiring board is capable of handling a large number of lead wires by inserting the lead wires into respective lead wire insertion holes drilled corresponding to the terminals of the terminal block. A technique configured to prevent erroneous wiring by dividing wires in an orderly manner is known from Japanese Utility Model Publication No. 53-6058.

However, in this known technique, when wiring, the lead wire must be moved in the length direction from one end side and inserted into the lead wire insertion hole, which reduces the wiring work efficiency.
It is low.

Therefore, in order to facilitate the insertion of the lead wires, each of the many lead wire insertion holes that are aligned and drilled in the wire alignment plate is inserted through the slit formed for each lead wire insertion hole. The lead wires are communicated with the outer edge of the wire arrangement plate, and the lead wires are moved laterally close to the outer edge of the wire arrangement plate and passed through the slits, so that the lead wires can be easily inserted into the lead wire insertion holes. The technology was developed in 1977-150484.
It is known from the publication No.

However, in this known technique, after the lead wire has been inserted into the lead wire insertion hole, there is a risk that the lead wire may pass through the slit and come off from the lead wire insertion hole, so it is necessary to take measures to prevent this.

In order to prevent the lead wires inserted into the wiring plate from passing through, the notch width of the slit provided in the wiring plate is formed to be smaller than the wire holding part which is the lead wire insertion hole. A technique is known from Japanese Utility Model Application Publication No. 58-32679 in which the slit is expanded by pressing the wire against the slit so that the lead wire is housed in the wire holder.

However, even with the known technique disclosed in Japanese Utility Model Application No. 58-32679, if a large external force in the withdrawal direction is applied to the lead wire after insertion, there is a risk that the lead wire will come out of the slit. This has the disadvantage that the lead wire gets stuck in the slit and the sheathing of the lead wire is damaged by the notched end of the slit.

Moreover, when the slit expands due to the pressure of the lead wire during wiring, the notch end of the slit strongly rubs the lead wire sheath, so the notch end is chamfered to smooth it so that the sheath is not damaged. These troublesome processes are actually necessary, and the wire alignment plate itself is required to be flexible.

Furthermore, each of the pair of wire organizing plates is provided with a cable housing section and a cable guide groove communicating with the cable housing section, and the pair of wire organizing plates have cable guide grooves that are connected to the respective cable housing sections. A technique is known from Japanese Utility Model Publication No. 52-53981, in which the positions of the wire alignment plates are shifted from each other and a pair of wire alignment plates are arranged in two stages at a certain distance from each other using spacers.

However, with this known technology, when inserting the cable, it is necessary to bend the cable in a crank shape to match the cable guide groove that is out of alignment, and after inserting the cable, the cable must be straightened to prevent it from escaping from the cable guide groove. Because it is necessary,
The insertion operation is time-consuming, and the cable is likely to be damaged due to bending and stretching.Furthermore, if the cable is bent during insertion and storage, there is a risk that it may escape from the cable guide groove.

(Means for Solving the Problems) This invention solves the above-mentioned problems of the prior art, allows easy insertion of the lead wire, and allows the lead wire housed in the lead wire insertion hole to be subjected to external force. The present invention proposes a terminal block that is devised so that there is no danger of it falling out even when the terminal block is in use. Use 2
A pair of wire alignment plates 10 and 11 are provided, each of which has a large number of rows of slits 12 and 13 opened at its outer edge 7, and each row has a large number of leads. The wire insertion holes 4 are arranged in multiple stages in the longitudinal direction of each row to form each slit 1.
2, 13, and a pair of wire alignment plates 10,
11, the slits 12 and 13 are formed so that the opening positions relative to the respective lead wire insertion holes 4 are shifted from each other, and the lead wire insertion holes 4 are formed so as to be able to match each other, and the pair of wire alignment plates 10, 11
It is impossible to fix the wire alignment plates 10, 11 to the terminal block main body 3 with the respective slits 12, 13 aligned with each other. It has a fixture formed so that it can be fixed to the terminal block main body 3 when the plates 10 and 11 are stacked on top of each other.

(Function) The two wire alignment plates 10 and 11 are stacked on top of each other so that the slits 12 and 13 provided in each row of the two wire alignment plates 10 and 11 coincide with each other, and the leads are made to the outer edge 7. Bring the wires 5 closer together and cut the slits 12,1
By passing through 3, a large number of terminals 6
The lead wires 5 wired can be easily inserted and stored in the respective lead wire insertion holes 4 without being bent.

After the insertion is completed, with the two wire alignment plates 10 and 11 stacked on top of each other, insert the respective lead wire insertion holes 4 and 4.
When the slits 12 and 13 are aligned with each other, they can be fixed to the terminal block main body 3 using a fixing tool, and since the slits 12 and 13 are shifted from each other in the fixed state, each slit 12 and 13 is The lead wire 5 is closed by the peripheral edge of the lead wire insertion hole 4 of the plate 10 or 11, and even if the lead wire 5 is bent, it is surely prevented from passing through the slits 12 and 13. .

(Example) Next, an embodiment of this invention will be described based on the drawings.

In the embodiment illustrated in plan views in FIGS. 4 and 5, a pair of wire straightening plates 10 and 11 are used to facilitate the insertion operation of the lead wire 5, and the lead wire 5 after insertion is This is to ensure that the passage is prevented.

That is, one wire alignment plate 10 and the other wire alignment plate 11 are formed with multiple rows of slits 12 and slits 13 each having one end open at the outer edge 7.
For each row, a large number of lead wire insertion holes 4 are arranged in multiple stages in the longitudinal direction of each row to form a matrix.
All the lead wire insertion holes 4 are inserted into the respective slits 12 and 13.

When these pair of wiring plates 10 and 11 are stacked on top of each other, the lead wire insertion holes 4 provided in one wiring plate 10 and the lead wire insertion holes 4 provided in the other wiring plate 11 match each other. The slits 12 provided on one wire arrangement plate 10 and the other wire arrangement plate 11 are formed so as to
The slit 13 provided in the above-mentioned wire alignment plates 10, 1
1 are formed so as to be shifted from each other by overlapping each other.

Specifically, in one wire arrangement plate 10 illustrated in FIG. 4, a slit 12 is provided at a position that communicates the left edge of the lead wire insertion hole 4 of each row, and in the other wire arrangement plate 10 illustrated in FIG. 11, a slit 13 is provided at a position communicating the right edges of the lead wire insertion holes 4 in each row.

When inserting the lead wire 5, as shown in the front view in FIG.
2. Align the wire alignment plate 1 so that the slits 13 match each other.
0 and the wire alignment plate 11 are overlapped, the lead wires 5 are brought close to the outer edges 7 of each, and the lead wires 5 are inserted into the matched slits 12 and 13, and the lead wires 5 are It is stored in the insertion hole 4.

When the storage is completed, as shown in the front view in FIG. 7, the wire arrangement plates 10 and 11 are shifted from each other so that the lead wire insertion holes 4 and 4 of these wire arrangement plates 10 and 11 are aligned with each other. When moving, the line arrangement plate 1
The slits 12 and 13 of Nos. 0 and 11 are shifted from each other, and the slits 12 and 13 are each blocked by the other wire alignment plate 10 or the peripheral edge of the lead wire insertion hole 4 of No. 11 in plan view. The lead wire 5 that has come off and is housed is prevented from passing through the slits 12 and 13.

In this state shown in FIG. 7, these wire alignment plates 10 and 11 may be fixed to the terminal block main body 3 (fixed to the mounting plate 2). The first example is a fixture for removably fixing the wire alignment plates 10 and 11 to the terminal block main body 3.
The example shown in the figure is a plan view and the side view is shown in FIG. , the support piece 15 with the hook-shaped portion 14 provided on the wire arrangement board 1, the left and right supports 19, 19 provided upright at the bottom of the terminal block main body 3, and the left and right support portions 16 provided on the wire arrangement board 1, 16.

When the terminal block main body 3 is fixed to the mounting plate 2, the bottom and left and right protrusions 17 of the mounting plate 2 and the terminal block main body 3,
When the left and right support parts 16, 16 are inserted into the long groove 18, which is a thin and wide gap formed between
9, the hook-shaped portion 14 is pushed open and the hook-shaped portion 14 engages with the column 19 as shown in FIG.
This engagement action prevents the wire alignment plate 1 from coming off easily.
0 and 11 are firmly fitted and fixed to the terminal block main body 3.

According to the structure in which the pair of wire alignment plates 10 and 11 are used in a stacked manner, the two wire alignment plates 1
Slits 12 and 1 provided for each row of 0 and 11
3 is wired to a large number of terminals 6 by stacking the wire alignment plates 10 and 11 so that they match each other, bringing the lead wire 5 close to the outer edge 7, and passing it through the slits 12 and 13. Lead wire 5
The lead wires can be easily inserted and stored in the respective lead wire insertion holes 4 without bending them.

After the insertion is completed, with the two wire alignment plates 10 and 11 stacked on top of each other, insert the respective lead wire insertion holes 4 and 4.
When the slits 12 and 13 are aligned with each other, they can be fixed to the terminal block main body 3 using a fixing tool, and since the slits 12 and 13 are shifted from each other in the fixed state, each slit 12 and 13 is The lead wire 5 is closed by the peripheral edge of the lead wire insertion hole 4 of the plate 10 or 11, and even if the lead wire 5 is bent, it is surely prevented from passing through the slits 12 and 13. .

The slits 12 and 13 are connected to the wire alignment plate 10,
It is sufficient to form the slits 12 and 13 at right angles to the surface of the slit 11 when viewed from the end, and the processing of the slits 12 and 13 is easy.

In addition, the above-mentioned insertion operation of the lead wire 5 and the wire arrangement plate 1
In the work of fixing terminal blocks 0 and 11 to the terminal block main body 3,
For example, one wire alignment plate 11 is first attached to the terminal block main body 3, and when inserting the lead wire 5, the other wire alignment plate 10 is moved to the position shown in FIG. Temporarily set it on one of the wiring board 11 and insert the lead wire 5. After this insertion, remove the clip and attach the other wiring board 10 to the terminal block main body 3. In this way, perform the above insertion operation. When the installation work is completed, the slits 12 and 13 are
The fitting portions of the wire alignment plate 10 to the terminal block main body 3 can be formed so as to be at mutually shifted positions as shown in the figure.

Next, the terminal block as a reference example, which is illustrated in a plan view in Fig. 1, a side view in Fig. 2, and a front view in Fig. 3, uses only one wire alignment plate 1. In this example, the lead wires 5 are inserted into the many lead wire insertion holes 4 arranged in a matrix on the wire alignment plate 1, and these leads are inserted into the terminals 6 of the terminal block body 3. This is for connecting line 5.

A slit 9 is provided in each row of the large number of lead wire insertion holes 4, and these slits 9 connect the lead wire insertion holes 4 of the corresponding row in series and penetrate up to the outer edge 7 of the wire alignment plate 1. It is set up.

Thereby, the lead wires 5 can be moved laterally and inserted into the slits 9, and accommodated in respective predetermined lead wire insertion holes 4.

Since the slit 9 is formed in a shape oblique to the surface of the wire alignment plate 1 (obliquely when viewed from the end), after the lead wire 5 is inserted into the lead wire insertion hole 4,
The lead wire 5 is held approximately perpendicular to the surface of the wire alignment plate 1, and the diagonal slit 9
The lead wire 5 cannot pass through naturally,
This prevents the lead wire 5 from coming off from the lead wire insertion hole 4.

According to the reference example shown in FIGS. 1 to 3, it is possible to prevent the lead wire 5 from coming off by using only one wire straightening plate 1.

(Effect of the invention) The terminal block main body equipped with a wire alignment plate having a slip-off prevention function according to the invention is constructed as described above, and is provided in each row of the two wire alignment plates 10 and 11. The wire alignment plates 10 and 11 are stacked so that the slits 12 and 13 coincide with each other, and the lead wire 5 is brought close to the outer edge 7, and the slits 12 and 1
By passing through 3, a large number of terminals 6
The lead wires 5 wired can be easily inserted and stored in each lead wire insertion hole 4 without being bent.

In this way, there is no need to bend the lead wire 5 before and after insertion, and damage to the lead wire due to crank-like bending and bending and stretching as in the conventional technology is eliminated. It takes a lot of effort.

After the insertion is completed, with the two wire alignment plates 10 and 11 stacked on top of each other, insert the lead wires into the respective lead wire insertion holes 4 and 4.
When the slits 12 and 13 are aligned with each other, they can be fixed to the terminal block main body 3 using a fixing tool, and since the slits 12 and 13 are shifted from each other in the fixed state, each slit 12 and 13 is The lead wire 5 is closed by the peripheral edge of the lead wire insertion hole 4 of the plate 10 or 11, and even if the lead wire 5 is bent, it is surely prevented from passing through the slits 12 and 13. .

[Brief explanation of the drawing]

Figure 1 is an overall plan view of a reference example of this invention, Figure 2 is a side view of Figure 1, and Figure 3 is a side view of Figure 1.
4 and 5 are plan views showing the wire straightening plates of the embodiments of this invention, and FIG. 6 is a front view of the lead wires in the embodiments of FIGS. 4 and 5. The front view, FIG. 7, showing the insertion state is the same as FIGS. 4 and 5 above.
FIG. 3 is a front view showing the state of use of the illustrated embodiment after the lead wire has been inserted. 1, 10, 11...Wire alignment plate, 2...Mounting plate, 3
... Terminal block body, 4 ... Lead wire insertion hole, 5 ...
Lead wire, 6... terminal, 7... outer edge, 9, 12,
13...Slit, 14...Hook-shaped part, 15...Bearing piece, 16...Support part, 17...Protrusion, 18...
Long groove, 19...post.

Claims (1)

[Scope of utility model registration request] The terminal block is equipped with a pair of wiring boards that are used when wiring lead wires to a large number of terminals arranged on the terminal block body, and the pair of wiring boards include:
A large number of slits opening at the outer edge are formed in multiple rows, and in each row, a large number of lead wire insertion holes are arranged in multiple stages in the longitudinal direction of each row and communicated with each slit. The plate is formed such that the slits are formed at different positions relative to the respective lead wire insertion holes, and the lead wire insertion holes are formed so that they can match with each other, and the slits of the pair of wire alignment plates are formed so as to match with each other. In this state, it is impossible to fix the wiring board to the terminal block body, and in a state where the lead wire insertion holes are aligned with each other and the wiring boards are stacked on top of each other, it is possible to fix the wiring board to the terminal block body. What is claimed is: 1. A terminal block equipped with a wire alignment plate having a retaining function, characterized in that the terminal block has a fixing tool formed as shown in FIG.