JPH0714632A - Electric wire connecting tool - Google Patents

Abstract

PURPOSE:To assemble an electric wire connecting tool closely, reduce auxiliary assembling materials, and carry out release and re-connection of electric wires easily. CONSTITUTION:In an electric wire connecting tool A having insertion blades 4, an insertion blade block 1 constituted in such a way that the insertion blades 4 and electric wires 5 are press-fitted to each other by cord fastening parts 6 and a pair of lock pieces 7 and 7 are arranged on both sides of them, is formed integrally of molded body 2. A clearance or a step difference part by a conventional calking system is not caused in the molded body 2. When the electric wire connecting tool is assembled, auxiliary assembling materials such as a pin, a screw and the like can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thin wire connecting tool for floor heating, for example.

[0002]

2. Description of the Related Art Conventionally, when assembling one electric wire connecting tool (harness plug) having a blade, the blade and the electric wire are crimped at a cord fastening portion and covered with a separate type cover and a body. At the same time, the cover and the body were crimped together. Also, when assembling the other wire connection tool (harness connector) in which the blade receiver, into which the blade is inserted and which is electrically and mechanically connected, is built in the inner part of the blade insertion port, What was crimped at the cord fastening part was covered with a separate type cover and body, and these covers and body were fitted by caulking.

[0003]

However, in the conventional thin harness for floor heating (caulking type), since the cover and body of each wire connection tool are of separate type, each wire connection tool has a separate structure. Since two molded parts are required and the respective parts are fitted by caulking, there is a problem that a warp or the like occurs in each part and a gap or a step is likely to occur on the butt-fitting surfaces. . Moreover, another assembly auxiliary material (for example, a pin, a screw, etc.) is required at the time of assembling the cover and the body, and it takes time to assemble due to the increase in the number of parts. Furthermore, in the conventional quick-connect type of thin harness connector, there is no mechanism for releasing the electric wire,
For this reason, in order to release the electric wire from the device, it is necessary to cut the electric wire from the squeeze portion and turn it out from the device one by one, and it is necessary to re-stage the squeeze when reconnecting the electric wire.

The present invention has been made in view of the above problems, and an object of the present invention is to make it possible to assemble an electric wire connecting tool without a gap and reduce an assembly auxiliary material. Another object of the present invention is to provide an electric wire connecting tool capable of easily releasing and reconnecting electric wires.

[0005]

In order to solve the above-mentioned problems, the invention according to claim 1 is an electric wire connecting tool provided with a blade 4, wherein the blade 4 and the electric wire 5 are connected to each other by a cord fastening portion 6. It is characterized in that the plug blade block 1 composed of a pair of lock pieces 7 and 7 arranged on both sides of the plug body is integrated by a molded body 2.

According to the second aspect of the present invention, there is provided a wire connecting tool in which a blade receiver 10 into which the blade 4 is inserted and which is electrically and mechanically connected is built in a deep part of the blade insertion port 11. And a blade receiving block 12 formed by clamping and fixing a blade receiving member 10 and an electric wire 13 at a cord fastening portion 14 by a pair of bodies 15a and 15b, and integrating the molded body 3 with each other. To do.

The invention according to claim 3 is an electric wire connecting tool in which a blade receiver 10 into which the blade 4 is inserted and which is electrically and mechanically connected is built in a deep part of the blade insertion port 11. A blade receiving spring 17 into which the blade 4 is inserted and a terminal portion 18 connected to the electric wire 13, and an electric wire 13 sandwiched between the terminal portion 18 and the electric wire 13 to receive the electric blade 13. The lock spring 19 that is electrically and mechanically connected to 10 and the wire hooking portion 19a of the lock spring 19 are pushed in the direction opposite to the wire holding direction D to release the electric and mechanical connection between the wire 13 and the blade receiver 10. The electric wire release button 20 is included.

Here, the electric wire release button 20 has a terminal portion 1
8 and the lock spring 19, and an operating portion 22 for moving the release rib 21 in the direction opposite to the wire holding direction D to separate the wire hooking portion 19a of the lock spring 19 from the wire 13. And may be provided. The operation unit 22 may have a finger slip prevention unit 23. In addition, the operation unit 22 may have a driver groove 26 in which the driver 25 is hooked.

[0009]

According to the present invention, by integrating the blade block 1 with the molded body 2 or with the blade receiving block 12 with the molded body 3, the product can be crimped by conventional caulking. There is no gap or step due to the formula, and it is possible to reduce the amount of auxiliary materials such as pins and screws during assembly.

The terminal portion 1 formed on the blade receiver 10
8 and the lock spring 19, the electric wire 13 is clamped, and the electric wire catching portion 19a of the lock spring 19 is pushed by the electric wire release button 20 in the direction opposite to the electric wire clamping direction D so that the electric wire 13 and the blade receiver 10 are electrically connected. By releasing the mechanical and mechanical connection, it is easy to connect and reconnect the electric wire 13 to the blade receiver 10 by operating the electric wire release button 20, respectively.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows one electric wire connection tool A equipped with a flat blade 4
(Thin harness plug for floor heating) is shown. The electric wire connecting tool A includes a blade block 1 and a molded body 2 for holding and fixing the blade block 1. The blade block 1 is configured such that the blade 4 and the electric wire 5 are crimped at the cord tightening portion 6 and a pair of lock pieces 7, 7 are arranged on both sides thereof. A stopper blade retaining portion 8 for preventing the stopper blade 4 from slipping out of the molded body 2 is formed, and the pair of lock pieces 7, 7 are provided with lock pieces 7, 7 from the molded body 2. Lock piece retaining portions 9 are formed to prevent the lock pieces from coming off.

FIG. 3 shows the other electric wire connecting tool A (for floor heating) in which the blade receiver 10 into which the blade 4 is inserted and which is electrically and mechanically connected is built in the interior of the blade insertion port 11. Shows a thin harness connector). The electric wire connecting tool A includes a blade receiving block 12 and a molded body 3 for holding and fixing the blade receiving block 12. As shown in FIG. 2, the blade receiving block 12 includes the blade receiving member 10 and the electric wire 1.
3 and 3 are crimped by a cord fastening portion 14 and sandwiched and fixed by a pair of bodies 15a and 15b, and the bodies 15a and 15b are fixed to each other by using assembly pins 16 and assembly screws. Further, the inflow of the molded body 3 and the blade receiver 1
In order to prevent 0 deformation, the above-mentioned bodies 15a and 15b are formed of separate type of thermosetting resin, and then,
The molded body 3 is simultaneously molded. In addition, blade receiver 1
0 consists of a pair of spring plates 17a, 17a, and the surface directions of these spring plates 17a, 17a are substantially parallel to the front and back surfaces in the thickness direction of the molded body 3. Thereby, the spring plate 17a,
The thickness of the molded body 3 can be reduced as compared with a configuration in which the surface direction of 17a is oriented in a direction orthogonal to the thickness direction of the molded body 3.

A pair of lock pieces 7, which lock the connection state when connecting the electric wire connecting tools A, A to each other,
7 (FIG. 1) is provided on the electric wire connecting tool A side, and the lock pieces 7, 7 are hooked and locked to form a pair of concave grooves 70, 70 (FIG. 3).
Is provided on the electric wire connecting tool A side, and the lock piece 7 is provided with a groove 70.
By injecting into the wire, the connection between the electric wire connecting tools A and A can be maintained sufficiently strong.

As described above, one electric wire connecting tool A (thin floor heating thin harness plug) is made into one piece with the plug blade block 1 by the molded body 2, and the other electric wire connecting tool A (floor heating thin harness connector). ) Is a one-piece structure of the blade receiving block 12 formed by the molded body 3, so that there is no possibility that a gap, a step, or the like of the butt-fitting surfaces as in the conventional caulking type is generated in each product, and also in terms of design. It has a neat appearance, and the outer part is stronger. In addition, there is an advantage that assembling auxiliary materials such as pins and screws can be reduced at the time of assembling, and productivity is improved.

Next, the mechanism for releasing the electric wire in the quick-connecting electric wire connecting tool B of the floor heating thin harness connector will be described. 4 to 7 show a case where the electric wire 13 is released and reconnected with a human finger 24. As shown in FIGS. 4 and 5, the electric wire connecting tool B includes a pair of bodies 15a and 15b in which outer parts are assembled by the assembly pins 16, and a blade receiving spring 17 into which the blade 4 is inserted. A blade receiver 10 having a terminal portion 18 connected to the electric wire 13, and an electric wire 13
The electric wire 13 is clamped between the terminal portion 18 and the terminal portion 18
A lock spring 19 electrically and mechanically connected to the lock spring 1, and a lock spring 1
An electric wire release button 20 for pressing the electric wire catching portion 19 a of the electric wire 9 in the direction opposite to the electric wire holding direction D to release the electrical and mechanical connection between the electric wire 13 and the blade receiver 10 is accommodated.

The wire release button 20 has a release rib 21 inserted between the terminal portion 18 and the lock spring 19 (see FIG. 7).
And an operation portion 22 that moves the release rib 21 in the direction opposite to the wire holding direction D to separate the lock spring 19 from the terminal portion 18. Then, as shown in FIG. 6, the operation portion 22 is provided with a finger slip preventing portion (finger slip preventing portion) 2
3 is exposed to the outside of the wire connection tool B, and the finger 24
The electric wire release button 20 can be slid in the direction of arrow E without sliding. At this time, the electric wire 13 is
Although it is sandwiched between the terminal portion 18 and the lock spring 19, the wire release button 20 is slid to push the wire catching portion 19a of the lock spring 19 in a direction opposite to the wire clamping direction D shown in FIG. The electrical and mechanical connection between the blade receiver 10 and the blade receiver 10 can be released. This allows the electric wire 13
Can be pulled out in the direction of arrow F in FIG. 6 or reconnected. Further, in FIG. 7, the operation portion 22 of the electric wire release button 20 is provided so as to project on the side surface of the electric wire connecting tool B, and the tip of the electric wire release button 20 is pressed by the finger 24 from the side in the arrow E direction. Thereby, the electric wire 13 can be pulled out in the arrow F direction.

As described above, since the electric wire can be released and reconnected only by operating the finger 24 without using a tool,
It is possible to omit re-stepping of the electric wire 13 at the time of reconnection, and it is possible to release a plurality of electric wires at the same time, which facilitates electric wire release and reconnection, respectively. On the other hand, FIGS.
Reference numeral 1 shows a case where the electric wire 13 is released and reconnected by using the driver 25.

In FIG. 8, the operating portion 22 of the electric wire release button 20 is provided exposed on the upper surface of the electric wire connecting tool B, and the operating portion 22 is provided with a driver groove 26. The driver 25 can be slid without sliding, and the electric wire 13 can be pulled out in the direction of arrow F by hooking it on and sliding in the direction of arrow E. Further, in FIG. 9 and FIG.
The operation portion 22 of the electric wire release button 20 is provided so as to project to the side surface of the electric wire connecting tool B, and the driver groove 26 is provided at the tip end of the electric wire release button 20. The electric wire 13 can be pulled out in the arrow F direction by pressing it from the side.

FIG. 11A shows a combination of a slide operation with the finger 24 and a slide operation with the driver 25. The operation section 22 exposed on the upper surface of the electric wire connecting tool B has a finger non-slip portion 23 and a driver groove. 26 is formed and is a dual-purpose type. Further, FIG. 11B shows that the electric wire release button 20 is completely housed inside the electric wire connecting tool B, and the driver insertion port 50 is formed on the side surface of the electric wire connecting tool B. Further, in FIG. 11C, a driver insertion hole 27 is formed on the upper surface of the electric wire connecting tool B, and the driver 25 is slid along the driver insertion hole 27. When it is not sufficient, the slide size can be increased by rotating the driver 25 in the driver insertion hole 27 in the direction of the arrow C, and the insufficient slide size is solved.

Here, the provision of the electric wire release button 20 may increase the height of the device by about 3 mm.
Since the conventional product of 0 mm can be thinned to about 11 mm in the present invention, an increase in the height of the wire release button 20 has no effect, and the thinning can be realized. Further, in the present embodiment, the electric wire release button 20 is of an integrated type capable of simultaneously releasing the three electric wires 13. The reason is that when each electric wire release button or the like is provided, the number of parts is increased, and the number of parts is three. It is difficult to release or reconnect the electric wires 13 one by one due to the diameter of the electric wires.

On the other hand, in FIG. 12, in the structure in which the blade receiving block 12 is clamped and fixed by the pair of bodies 15a and 15b using the assembly pin 16, the electric wire releasing jig 60 which functions as an electric wire releasing button is connected to the electric wire connecting tool B. It is separable. That is, with the operating portion 22 of the electric wire releasing jig 60 placed on the one body 15a, the electric wire catching portion of the terminal portion 18 and the lock spring 19 is inserted through the electric wire releasing hole 30 formed in the one body 15a. 19a, and the electric wire release hole 30 is, as shown in FIG.
The release rib 21 is formed in a hole size that allows the wire to be released by pushing the wire hooking portion 19a of the lock spring 19 in the arrow direction. Thus, when releasing the electric wire, the electric wire can be easily released by mounting the electric wire releasing jig 60 and sliding the operation with a finger, and when the electric wire is not released or reconnected, the electric wire is released. By removing the jig 60, the height of the entire device can be kept low. Moreover, there is no need to secure a storage space for storing the wire releasing jig 60 in the wire connecting tool B, and there is an advantage that the same device height as that of the conventional quick-connecting type thin harness connector can be realized.

[0022]

As described above, the invention according to claim 1 is
A wire connecting tool having a blade, which is a wire connecting tool having a blade, wherein the blade and the wire are crimped at a cord fastening portion, and a pair of lock pieces are arranged on both sides thereof. Since the blade block is integrated with the molded body, the product does not have the warp like the conventional caulking type, or the formation of gaps, steps, etc., and it has a clean design and sensory appearance. In addition, the outer shell also becomes stronger in strength. In addition, it is possible to reduce assembly auxiliary materials such as pins and screws at the time of assembly, which has an effect of improving productivity.

According to a second aspect of the present invention, there is provided an electric wire connecting tool having a blade reception member into which a blade is inserted and which is electrically and mechanically connected, which is built in a deep portion of the blade insertion opening. Since the plug blade receiving block, which is formed by clamping and fixing the receiver and the electric wire at the cord tightening part with a pair of bodies, is integrated with the molded body, the product has no gaps or steps due to the conventional caulking method. There is no possibility of occurrence, and the appearance is neatly designed and sensuous, the outer part is also strong, and assembly auxiliary materials such as pins and screws can be reduced during assembly, improving productivity. This has the same effect as that of claim 1.

According to a third aspect of the present invention, there is provided an electric wire connecting tool in which a blade receiver, into which the blade is inserted and which is electrically and mechanically connected, is built in a deep portion of the blade insertion opening. Blade receiving member having a blade receiving spring into which is inserted and a terminal portion connected to an electric wire, and a lock spring that clamps the electric wire between the terminal portion and the electric wire to electrically and mechanically connect the electric wire to the blade receiving member. And an electric wire release button that pushes the electric wire hooking part of the lock spring in the direction opposite to the electric wire holding direction to release the electrical and mechanical connection between the electric wire and the blade receiver, thus releasing the electric wire by operating the electric wire release button. Also, as a result of easy reconnection, it is possible to eliminate the need for re-stepping of the electric wire at the time of reconnection, and it is possible to release a plurality of electric wires at the same time.

According to a fourth aspect of the present invention, in the electric wire release button according to the third aspect, a release rib inserted between the terminal portion and the lock spring is moved, and the release rib is moved in a direction opposite to the wire holding direction. Since the electric wire hooking portion of the lock spring is composed of the operating portion that separates the electric wire from the electric wire, the electric wire can be released and reconnected easily by operating the electric wire release button. According to the invention described in claim 5, since the finger slip prevention portion is provided on the operation portion according to claim 4, it is possible to prevent the finger from slipping when operating the operation portion with a finger, and to prevent the finger from slipping without using a tool. The electric wires can be released and re-connected more easily by only the operation.

According to a sixth aspect of the present invention, since the driver groove in which the driver is hooked is provided in the operating portion according to the fourth aspect, the driver is prevented from slipping and the operation of releasing the electric wire is easily performed by the driver. be able to.

[Brief description of drawings]

FIG. 1 is a perspective view of one electric wire connecting tool.

FIG. 2 is an exploded perspective view of a blade receiving block of the other electric wire connecting tool.

FIG. 3 is a perspective view of the other wire connecting tool.

FIG. 4 is an exploded perspective view of an electric wire connection tool including an electric wire release button.

5 shows the electric wire connecting tool of FIG. 4, (a) is a plan view,
(B) is a partially cutaway front view, (c) is a side sectional view, (d)
Is a front sectional view.

FIG. 6 is a perspective view showing a method of operating the above electric wire release button.

7A is a perspective view of an electric wire release button, and FIG. 7B is a perspective view showing an operation method of the electric wire release button.

FIG. 8 is a perspective view showing another operation method of the electric wire release button of the above.

FIG. 9 is a perspective view showing another operation method of the electric wire release button of the above.

10 shows the electric wire connecting tool of FIG. 9, (a) is a plan view, (b) is a partially cutaway front view, (c) is a side view, and (d).
Is a front sectional view.

11A is a perspective view of the same type of finger operation and driver operation as above, FIG. 11B is a perspective view showing another operation method of the wire release button, and FIG. 11C is still another view of the wire release button. It is a perspective view showing an operating method.

FIG. 12 is an exploded perspective view of an electric wire connecting tool including an electric wire releasing jig.

13 is a cross-sectional view of the main parts of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Plug blade block 2,3 Molded body 4 Plug blade 10 Plug blade receiver 12 Plug blade receiving block 13 Electric wire 17 Blade receiving spring 18 Terminal part 19 Lock spring 20 Electric wire release button 21 Release rib 22 Operation part 23 Finger non-slip part 26 Driver Groove A, B Wire connection tool D Wire gripping direction

Claims (6)

[Claims] 1. A wire connecting tool having a blade, wherein the blade and the wire are crimped at a cord tightening portion and a pair of locking pieces are arranged on both sides of the block to form a molded body. An electric wire connection tool characterized by being integrated into one. 2. A wire connecting tool having a blade blade inserted therein, which is electrically and mechanically connected to the blade, which is built in a deep portion of a blade insertion opening. An electric wire connecting tool characterized in that a blade receiving block, which is obtained by sandwiching and fixing by a pair of bodies, what is crimped at a tightening portion is integrated with a molded body. 3. A blade receiver into which a blade is inserted and electrically and mechanically connected is a wire connecting tool built in a deep part of the blade insertion port, and the blade receiver into which the blade is inserted. A blade receiver having a spring and a terminal portion connected to the electric wire, a lock spring that clamps the electric wire between the terminal portion and the terminal to electrically and mechanically connect the electric wire to the blade receiver, and an electric wire of the lock spring An electric wire connection tool, comprising: an electric wire release button for pressing an engaging portion in a direction opposite to an electric wire holding direction to release an electric and mechanical connection between an electric wire and a blade receiver. 4. The electric wire release button has a release rib inserted between the terminal portion and the lock spring, and the release rib is moved in a direction opposite to the electric wire holding direction so that the electric wire hooking portion of the lock spring is removed from the electric wire. The electric wire connecting tool according to claim 3, further comprising an operating section for separating the electric wire. 5. The electric wire connecting tool according to claim 4, wherein the operation section has a finger slip prevention section. 6. The wire connecting tool according to claim 4, wherein the operating portion has a driver groove into which a driver is hooked.