JPH0142292Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a terminal device such as a terminal block for connecting a crimp terminal, a fuse block, and a signal light.

``Prior art'' A crimp terminal has an insertion hole for inserting a mounting screw, and normally a terminal device cannot be installed with the mounting screw screwed into the terminal device. After placing the crimp terminal in place, the mounting screw must be inserted into the insertion hole of the crimp terminal and screwed into the terminal device. For this reason, various devices have been developed that lift the mounting screw onto the terminal device and automatically provide a gap for insertion of the crimp terminal. In most cases, a washer to which a mounting screw is screwed is urged upward by a spring such as a coil spring or a leaf spring. Above: ``Problems to be Solved by the Invention'' The terminal device as described above has a large number of parts, increases cost, and requires a long time to assemble the terminal device.

"Means for Solving the Problems" In view of the above-mentioned circumstances, the present invention attempts to provide a terminal device that does not use springs while maintaining a certain level of wiring work efficiency when connecting crimp terminals. A notch with an open lower end is carved into the straight inner piece of the washer, which is slidably provided in the notch or hole of the terminal board, to provide elasticity, and a protrusion for engaging the terminal board is provided. be.

``Operation'' Lift the washer and engage the engagement protrusion with the terminal board to provide a gap for inserting the crimp terminal. After placing the crimp terminal on the terminal board, insert the mounting screw into the insertion hole of the crimp terminal, Attach the crimp terminal by screwing it into the screw hole of the terminal board.

"Example" Fig. 1 is an enlarged exploded perspective view of the main part, and is indicated by reference numeral 1.
2 is an insulating housing, 2 is a terminal plate, 3 is a washer, 4 is a mounting screw, and 5 is a crimp terminal.

As shown in detail in FIGS. 2 to 6, the insulating housing 1 has a plurality of base walls 7 vertically erected on a horizontal substrate 6 at predetermined intervals. Support pieces 8 and 9 for supporting the terminal board 2 are provided at the lower part between the base walls 7. A stopper 10 is provided protruding from the upper end of the support piece 8, and the support piece 9
A groove 11 is formed in the upper surface of the holder. Vertical holes 12 and 13 are provided between the base wall 7 and the support pieces 8 and 9 to receive the straight inner pieces of the washer 3. In addition, the base wall 7
A holding piece 14 is provided at the center of the upper part of the holding piece 14 so that the gap between its lower surface and the supporting pieces 8 and 9 is such that the terminal plate 2 can be received therein.

The terminal plate 2 has a rectangular shape, and has a notch 15 cut in the side thereof to guide the straight inner piece of the washer 3, and an insertion hole 16 into which the mounting screw 4 is inserted at both ends.

The washer 3 has a roughly L-shaped cross section and consists of a horizontal terminal piece 17 and a vertical inner piece 18. The horizontal terminal piece 17 is provided with a screw hole 19 into which the mounting screw 4 is screwed. The straight inner piece 18 has a cutout 15 of the washer 2 set to a size that allows sliding, and a notch 20 whose lower end is open to give elasticity to the straight inner piece 18.
Lower and upper engaging protrusions 21 and 22 are provided protrudingly on the side surface of the straight inner piece 18, and the lower engaging protrusion 21
The distance between the upper engaging protrusion 22 and the upper engaging protrusion 22 is approximately equal to the thickness of the terminal plate 2.

For the mounting screw 4, use the Super Rotsu Kushashiar 2.
3 under the neck, the mounting screw 4 is passed through the insertion hole 19 of the horizontal terminal piece 17 of the washer 3, the side surface of the horizontal terminal piece 17 is caulked, and the mounting screw 4 is mounted on the washer 3. Note that the contact portion 30 may be bulged on the lower surface of the horizontal terminal piece 17 to prevent the invalid screw portion under the neck from being screwed in when the mounting screw 4 is screwed.

Support pieces 8, 9 and clamping piece 14 of insulating housing 1
Insert the terminal plate 2 from the support piece 9 side between the notches 15 and
Insert it until it abuts against the stopper 10 so that it is positioned above the hole 12.

When the washer 3 with the mounting screw 4 attached is inserted so that the mounting screw 4 is positioned above the screw hole 16 and its straight inner piece 18 is inserted into the notch 15, the engaging protrusion 21 touches the inner surface of the notch 15. The engaging protrusion 21 passes through the inner surface of the notch 15 and bends inwardly into the holes 12 and 13 of the insulating housing 1, and as the insertion continues, the engaging protrusion 21 passes through the inner surface of the notch 15 and enters the holes 12 and 13 of the insulating housing 1. Due to its elasticity, the straight inner piece 18 bounces back and hits the notch 15 of the terminal plate 2. The above state is the state shown in the right diagram of FIG.

In order to connect the crimp terminal 5 having the insertion hole 24 to this terminal block, as shown in the right view of FIG. 7 and FIG.
1 and 22 (the mounting screw 4 is not screwed into the screw hole 16 of the terminal board 2), insert the crimp terminal 5 onto the terminal board 2 through its insertion hole 2.
4 is placed on the screw hole 16. Next, the mounting screw 4 is pressed down, screwed into the screw hole 16 as shown in the left diagram of FIG. 7, and tightened and fixed. At this time, when the engaging protrusion 22 of the inner piece 18 for straightening the washer comes into contact with the inner surface of the notch 15, it bends inward, and after passing, returns outward.

In the above embodiments, the terminal board is provided with a notch, but it may also be provided with a hole. Furthermore, although the washer has been described as having an L-shaped cross section, the washer is not limited thereto, and may have a U-shaped cross section. Further, although the example in which the straight inner piece has one cut has been described, the present invention is not limited to this, and there may be a plurality of cuts.

Terminal plates and washers according to other embodiments of the present invention will be described below with reference to FIGS. 10 to 16.

10 is an example in which a hole 25 is formed in the terminal plate 2 instead of a notch, and the washer 3 is the same as that in the previous embodiment.

The terminal plate 2 of FIG. 13 is provided with facing notches 26, 26 for engaging one washer 3, and when the straight inner piece 18 of the washer 3 is inserted into the notch 26, It is designed to bend outward.

A hole 27 is formed in the washer terminal plate 2 shown in FIG. It was established in

Although the above embodiment has been described with respect to a terminal block, it can be used in other terminal devices such as a fuse stand and a signal light.

``Effect of the invention'' As mentioned above, the present invention provides a terminal board with screw holes carved into the insulating housing, and inserts and attaches the mounting screw into the horizontal terminal piece of the washer, which consists of a horizontal terminal piece and a straight inner piece. In a terminal device in which a guide piece is slidably provided in a notch or hole in the terminal plate and a mounting screw can be screwed into a screw hole in the terminal plate, a notch is carved in the straight inner piece of the washer so that the lower end is open. This is a terminal device that has elasticity and protrusions that engage with the terminal board, and it is possible to provide a terminal device that does not use springs while maintaining the wiring work efficiency of crimp terminal connections above a certain level. Become. By eliminating the need to use a spring,
The number of parts is reduced, the cost is reduced, and the assembly of the terminal device does not require a long time.

In addition, when a mounting screw became unusable, the entire terminal device had to be replaced, but with this invention, the washer on which the mounting screw is attached can be pulled out, so only that part can be repaired. It becomes possible.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is an enlarged exploded perspective view of the main parts, Fig. 2 is a front view of the insulating housing, Fig. 3 is a plan view of Fig. 2, and Fig. 4 is a plan view of Fig. 2. Fig. 5 is a right side view of Fig. 2, Fig. 6 is a cross-sectional view of Fig. 2, Fig. 7 is a front view showing before and after connecting the crimp terminal to the terminal block, and Fig. 5 is a right side view of Fig. 2. Figure 8 is a right side view of Figure 7, Figure 9 is a plan view of Figure 7, and Figure 1.
Figures 0 to 16 show terminal plates and washers of other embodiments, Figure 10 is a plan view of the terminal plate, and Figure 11 is a plan view of the terminal plate.
The figures are a front view of the washer, Fig. 12 is a plan view of Fig. 11, Fig. 13 is a plan view of the terminal board, Fig. 14 is a front view of the washer, Fig. 15 is a plan view of Fig. 14, and Fig.
The figure is a plan view of the terminal board, Figure 17 is a front view of the washer,
FIG. 18 is a plan view of FIG. 17. 1...Insulating housing, 16...Screw hole, 2...
...Terminal board, 17...Horizontal terminal piece, 18...Direct internal piece, 4...Mounting screw, 15, 26...Notch,
25, 27...hole, 20...notch, 21,2
2, 28, 29...Engaging protrusion.

Claims (1)

[Scope of utility model registration request] A terminal board with screw holes carved in the insulating housing is provided, a mounting screw is inserted through the horizontal terminal piece of the washer consisting of a horizontal terminal piece and a straight inner piece, and the straight inner piece is slid into the notch or hole of the terminal plate. In a terminal device in which a mounting screw is freely movable and can be screwed into a screw hole of a terminal board, a notch with an open bottom end is carved in the straight inner piece of the washer to provide elasticity and to engage the terminal board. A terminal device characterized by a protruding projection.