JPH026613Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to a cable cover for a plug connector that allows a plug connector for crossover connection to be inserted into a receptacle connector with less insertion force.

(Prior Art) In electronic equipment, it is often desired to connect a plurality of printed wiring boards forming a circuit, for example, in parallel. In this case, as shown in the perspective view shown in FIG.
Plug connectors 7, 8 and 9, 10 are provided corresponding to connectors b, 4a, and 4b, and are connected by crossover tape electric wires 5, 6, respectively, and are connected by inserting them into the receptacle connectors 3, 4. is being carried out.

However, recent advances in the degree of integration of integrated circuit elements and miniaturization of various components have increased the mounting density of circuit-forming components on printed wiring boards, resulting in an increase in the number of external connection terminals per printed wiring board. Increase the number. For this reason, the number of poles of a connector for connecting a printed wiring board circuit to an external circuit inevitably increases accordingly, and the contact spring pressure of the contacts also increases in proportion to the number of contacts. Therefore, the thin and small plug connectors 7, 8 and 9, 10 as described above are held between the fingers and the receptacle connectors 3, 4 are connected.
In the method of inserting and pulling out plug connectors, it is extremely difficult to insert and pull out due to insufficient force, and furthermore, the method of inserting plug connectors one by one lacks quick connection and disconnection.

Therefore, conventionally, as shown in the partial cross-sectional perspective view shown in FIG. Pulling grip 11a
By using a cable cover 11 having a large force acting surface, it is easy to insert and extract the plug connectors, and at the same time, each of the plug connectors 7, 8, 9, and 10 can be inserted into the receptacle connectors 3 and 4 at once. Efforts are being made to enable connectivity.

(Problems with the prior art) However, even with this method, if the number of pins of the connector becomes large, or if the number of contacts of the receptacle connector is arranged in two or more rows as explained in Fig. 1, the number of plug connectors increases. If the number increases, the insertion force and the extraction force may exceed the force applied to the cover 11. For this reason, it is not only impossible to make or release the plug-in connection, but even if it is possible, it is very difficult, and in some cases, the plug-in connection may be incomplete, leading to a connection failure.

The object of the present invention is to provide a cable cover that can significantly reduce the insertion force or extraction force of a plug connector without significantly reducing the speed of connection and disconnection by pulling out compared to the case of conventional covers. This eliminates the drawbacks of the prior art as described above.

[Structure of the idea]

(Summary of the invention) This invention forms a cable cover into two parts that accommodate and fix two sets of plug connectors connected by crossover wires, and one part of which is inserted into the other in the direction in which the plug connectors are inserted. Connect and form so that it can move by the length. Then, after applying the plug connector housed and fixed inside the cable cover to the insertion position of the receptacle connector, first press the part that can move in the insertion direction of the plug connector to connect one set of plug connectors to the receptacle connector. and then press the other remaining part so that another set of plug connectors can be inserted into the receptacle connector. Furthermore, by operating in the reverse manner to the above for pulling out, it is possible to reduce the required insertion force and extraction force without significantly impairing the speed of connection and disconnection. Next, the present invention will be explained in more detail with reference to Examples.

〔Example〕

(Configuration) FIG. 3 is an exploded perspective view showing an embodiment of the present invention.
FIGS. 4a and 4b are sectional views and perspective views showing the assembled state, and FIGS. 5a and 5b are sectional views when assembled. The features of the present invention are as follows. That is, as shown in FIG. 3, the cable cover 11 described above in FIG. 2 is pulled out and divided into two equal parts from the center of the gripping tool 11a in the plug connector insertion direction to form first and second cover forming portions 12 and 13. form. Then, as shown in FIGS. 3 and 4, the first and second cover forming portions 12 are placed on the left and right ends of the open overlapping surfaces of the first and second cover forming portions 12 and 13 so that their outer surfaces are flush with each other. . Further, a retaining stepped portion 13c is provided on the installation surface side of the pull-out grip portion 13b of the key recipient 13a.
A retracted stepped portion 12c is provided on the installation surface side of the pull-out grip portion 12b. Then, as shown in the perspective view of FIG. 4b, the key receiver 12a and the key receiver 13a are fitted together until the locking step part 12c hits the locking step part 13c, and the second forming part 13 is replaced with the first forming part 13a. As shown in FIG. 5b, the portion 12 is formed so as to be movable in the direction of insertion of the plug connector.

On the other hand, as shown in FIG.
A support groove 12b1 whose lower end becomes a retaining end 12b2 is provided on the overlapping surface of the support groove 12b1. Further, a recess 13b1 provided in the overlapping surface of the second pull-out grip part 13b
A retaining spring piece 13b2 is provided inside, one end of which is supported and projects outward, and the tip of which is supported when the first and second forming portions 12, 13 are combined along their entire length as shown in FIG. 5a. 1. The length is selected so that it is positioned above the retaining end 12b2 of the 1-pull-out gripping tool forming portion 12b by the length _l1 required for insertion of the plug connector. When the second forming portion 13 is pressed down as shown in FIG. 5b, the first forming portion 1
When the second forming part ₁₃ is pulled up by holding the second pull-out grip forming part 13b, As shown in FIG. 5A, the step 13c to be stopped is formed so as to be pulled up until it abuts against the step 12c of the first forming portion 12.

(Functions and Effects) As described above, the cable cover is attached to the first forming part 1.
If the second forming part 13 is formed to move up and down with respect to the cover 2, the connection can be made by connecting wires 5 and 6 fixed in the cover in the same manner as in the conventional case, as shown by the dotted line in FIG. Only the plug connectors 9 and 10 can be inserted by applying the plug connectors 7, 8 and 9, 10 that have been inserted into the insertion openings of the receptacle connector and first pressing down on the upper surface of the second forming portion 13. Next, by pressing down on the upper surface of the first forming part 12, the remaining plug connectors 7, 8 can be inserted, thus reducing the insertion force by half compared to that of a conventional insertion tool. be able to. In addition, in the case of pulling out, the plug connectors 7 and 8 can be pulled out from the receptacle connector by first pulling the first pulling grip 12b of the first forming part 12, and then the plug connectors 7 and 8 can be pulled out from the receptacle connector. By pulling the second pull-out grip 13b, the plug connectors 9, 10 can be pulled out from the receptacle connector. Therefore, the pulling force can be reduced to 1/2 of that of a traditional cable cover.

Also, by pressing the first forming part 12, the second forming part 13 is simultaneously pushed, and the plug connector 7,
8, 9, and 10 can be inserted into the receptacle connector at the same time. In addition, by pulling out the second forming part 13 first, the first forming part 13 can be pulled out at the same time, and the plug connectors 7, 8, 9, and 10 can be pulled out from the receptacle connector at the same time. It is also effective for connectors that require little insertion and removal force.

In addition, when there are two sets of plug connectors to be inserted, as in the case of the above-mentioned embodiment, the insertion and withdrawal speed is approximately 1/1 compared to a conventional insertion tool in which all plug connectors are inserted at the same time. 2, but the speed is faster than when not using the cable cover.

(Modification) Although the present invention has been described above with reference to one embodiment, as shown in FIG. Alternatively, the upper end may be omitted and only the lower end may be used. In addition, in the above, the plug connector is 7,
Although the description has been made regarding the case of two sets addressed to two locations 8, 9, and 8, it goes without saying that this can also be applied to a case where one set includes three or more locations. Furthermore, in the above example, the two plug connectors 7 and 8 are inserted first, and then the remaining connectors 9 and 10 are inserted simultaneously. However, by dividing the first forming part 12 and the second forming part 13 shown in FIG. If the plug connectors 7, 8, 9, and 10 are fixed to the plug connectors, each plug connector can be formed to be inserted into one position, and the insertion force and extraction force can be further reduced.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the conventional connection method, Fig. 2 is an explanatory diagram of the conventional insertion tool, Fig. 3, Fig. 4 a, b,
FIGS. 5a and 5b are explanatory diagrams of one embodiment of the present invention, respectively. 1, 2...Printed wiring board, 3, 4...Receptacle connector, 3a, 4a...Contact row, 5,
6... Crossing tape electric wire, 7, 8, 9, 10...
Plug connector, 11...Cable cover, 1
2, 13...first and second forming components, 12a, 13a
...Receiving groove and receiving groove, 12b, 13b...First and second pull-out gripping parts, 12c, 13c and 12d, 1
3d...Retained step portion and retaining step portion, 13b1…Support groove, 13b2…Retaining end, 12b1…Recessed portion, 12b2…Retaining spring piece.

Claims (1)

[Scope of utility model registration request] One or more points connected by crossover wires are 1
Fix the two sets of plug connectors inside,
In a cable cover in which these plug connectors are inserted into and pulled out from a receptacle connector at the same time, the insertion/extraction tool is divided into two parts for each group of plug connectors in the plug connector insertion direction, and a extraction grip part is provided for each of the two parts. In addition, one of the first and second formed portions formed by splitting is connected to the other second forming portion so that it can move in the insertion direction of the plug connector by the length necessary for insertion into the receptacle connector. is,
When inserting, first press the first forming part to insert the fixed plug connector, then press the second forming part.
A cable cover characterized in that the remaining plug connector can be inserted by pressing the formed part, thereby reducing the insertion force, and when pulling out, the pulling force can be reduced by performing the reverse operation.