JPS6029191B2 - connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connector for connecting electrical cables, and more particularly to an insulating housing in which contacts are arranged, and a pair of split housings that can be assembled with each other by being sandwiched between the rear ends of the insulating housing. This invention relates to a type of connector that has a cord holding piece.

BACKGROUND ART Conventionally, a type of connector in which a cord tube is screwed and fixed to a connector body including an insulating housing in which contacts are disposed has been generally used as a circular connector.

However, when connecting these types of connectors and assembling the connector, insert the cable to be connected into the cord tube, wire the contacts and the cable lead wires, and then insert the cord tube. Since the cable must be screwed into the connector main body, the cable inserted into the cord tube is twisted together with the cord tube at this time, resulting in a disadvantage that the connection portion may be screwed off. In order to eliminate such drawbacks, the cord pipe is divided into two parts to form a pair of split cord holding pieces, and this pair of split cord holding pieces is clamped to the connector body, thereby making it possible to prevent the cord from being attached to the connector body. A system that does not require the cord pipe to be screwed in has been proposed in the past, and one example is
It is disclosed in Japanese Patent No. 1791.

Although this type of conventional connector eliminates disconnection due to screwing during connection, it has the following problems. '1} When a pair of split cord holding pieces are roughly raised, the only thing that fixes these split cord holding pieces is the two screws at the rear end, and the front ends of these split cord holding pieces are attached to the connector body. Since there is no external fixing means at all, the split cord holding piece and the connector body are not firmly fixed, and may come loose or come off due to external vibrations, shocks, etc. .

'21 If the diameter of the cable is even slightly larger than the diameter of the ring part that pinches the cable of the split cord holding piece, a gap will be created in the combined part of the split cord holding piece, allowing dust and moisture to enter the split cord holding piece, resulting in electrical damage. This may cause deterioration of characteristics. Also,
If the diameter of the cable is even slightly smaller than the diameter of the ring part, it will be difficult to clamp the cable, and if an external force is applied to the cable, the connection part will break. '3' As is clear from Fig. 3 of the above-mentioned Jitsekki Shokyu-71791 publication,
When assembling the split cord holder, if the split cord holder is clamped to the connector body, the split cord holder will be at an angle before the cable is attached vertically, so the split cord holder must not be firmly clamped to the connector body. It takes a lot of effort to assemble because it cannot be put on and falls off unless you hold it down by hand.

■ After installing the split cord holding piece and completing the wiring, if you want to split it at the Minato Zenikichi line, etc., you have to loosen the two screws at the rear end one by one, making it troublesome to remove.

{51 As is clear from Figures 3 and 4 of the above-mentioned Publication No. 53-71791, when a connector is provided with a coupling nut, the coupling nut is inserted into the connector body first. Later, because the configuration required a pair of split cord holding pieces to be clamped to the connector body, 1
The pair of split cord holding pieces must be placed completely away from the rear end of the coupling nut.

Therefore, in order to suppress the overall length of the connector, the length of the coupling nut must be controlled. The shorter the length of the coupling nut, the more difficult it is to couple the connector to and remove it from the receptacle. In particular, in the recent method of removing cables from devices such as VTR devices using connectors, in order to avoid danger to the user when the cable connector is not in use, it is necessary to remove the cable from the other side's receptacle as shown in Figure 1 of the attached drawings. The mounting surface 8 of the receptacle B is made into a recess so that the receptacle B does not protrude from the panel surface 7.
It has become common practice to attach the receptacle B so that the protruding surface 4' of the threaded portion 4 of the receptacle B is lower than the panel surface 7.

Therefore, the overall length L dimension of the coupling nut 20 of the connector plug A needs to be longer than the depth of the panel recess to facilitate the connection and removal operations of the connector plug A, but this is difficult to do with conventional ones. . SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, an object of the present invention is to provide a connector that eliminates the need to screw the cord tube into the connector body, is easy to assemble and disassemble, and can reliably maintain the assembled state. It's about providing structure. In addition to this point, another object of the present invention is to provide a connector structure that allows a sufficient length of the coupling nut.

According to the present invention, in a connector having an insulating housing in which a contact is disposed, and a pair of split cord holding pieces that can be assembled with each other by being sandwiched between the rear ends of the insulating housing, the pair of split cord holding pieces are provided. The pieces are not held together using screws or the like, but are held together by a fixed odor that easily fits into the outer periphery.

Furthermore, according to the present invention, an outer connector having an insulating housing in which the contact is disposed and a pair of split cord holding pieces that can be assembled with each other by being sandwiched between the rear ends of the insulating housing, The structure is such that the fixed odor that easily fits into the outer periphery of the pair of split cord holding pieces and holds the pair of split cord holding pieces together also serves to prevent the coupling nut from coming off. Further, according to the present invention, the structure is such that the pair of split cord presser pieces are combined while being inserted under the coupling nut. Next, the present invention will be described in more detail with reference to embodiments of the present invention based on the accompanying drawings.

FIG. 1 shows, in a perspective view, a connector plug according to an embodiment of the present invention, which is about to be connected to a mating receptacle installed on a mounting surface of a panel surface, as described above.

FIG. 2 shows the connector A in an enlarged perspective view as seen from different angles, and FIG. 3 is an exploded perspective view of the arrangement of parts. This connector A consists of a pair of split cord holding pieces 10, a coupling nut 20, a cable pushing 30, a fixed shell 40, a connector body shell 50, a contact 60, and an insulating housing 70. There is.

As clearly shown in FIG. 3, inside the pair of split cord holding pieces 10, an A locking groove 11 and a B locking groove 13 are provided.
, C locking grooves 14 and 14A (not shown) are formed, and a ○ locking recess 12 is formed in front of the A locking groove 11.

Further, flat portions 15 are formed at both inner end portions, and a flat portion 15' is formed in front of the flat portions 15. At both outer ends of the split cord holding piece 10, a flat part 17 is formed in contrast to the inner flat part 15, and in front of the flat part 17 is formed a fixing protrusion 16, and on the sides of the fixing protrusion 16 are formed a flat part 17. A V-shaped book 16A is formed. A fixing device locking piece 19 is formed at the rear end of the split cord holding piece 10, and a cable 80 is installed inside the fixture locking piece 19.
Or a cable convex portion 19 that presses the cable bushing 30
A. A locking groove 19B for locking the fixed odor 40 to the split cord piece is formed on the outside. The fixed odor locking piece 19 has slits 19C and 19C' formed on both sides so that it can be elastically shifted inward and outward. Notches 18 are formed on both sides of the rear end of the split cord presser piece 10, and these cutouts 18 create a slit when a pair of split cord presser pieces 10 are assembled with each other, and are fixed. It is configured to receive an insertion guide convex portion 45 of the tool 40, which will be described later. The insulating housing 70 can be press-fitted into the inside of the connector main body 50' using a press-fit convex portion 56.

A front cylinder 55, a circular flange 53, and a rear cylinder 54 are formed on the outside of the connector body shell 50.
The rear cylinder 54 has A at two locations corresponding to 180 degrees.
A locking convex portion 51 and a D locking convex portion 52 are formed. The insulating housing 70' has a plurality of contact array holes 75 (
In the illustrated example, it is for a male contact, but it can also be used for a female contact.

) is formed into which the contact 60 can be inserted. Moreover, flat parts 73 and 74 are formed on the outside of the insulating housing 70 at two positions corresponding to each other by 180 degrees, and the flat parts 74 are press-fitted into the press-fit convex part 56 of the connector body shell 50. It has become. A C-locking convex portion 72 is formed at the rear end of the flat portion 73.
The coupling nut 20 has a coupling nut thread and a circular convex portion 22 formed inside thereof, and a rear cylindrical portion 2.
4 is formed.

Notches 23 are formed in the circular convex portion 22 at two positions corresponding to 180 degrees. On the outside of the coupling nut 20, anti-slip grooves 25 are formed at several locations over the entire circle (see FIG. 2). The fixed odor 40 has two split cord presser fixing parts 42 formed at positions corresponding to 180 degrees in front of the cylindrical part 41 (in FIG. 3, it is partially cut away, so one Only one fixing part 42 is shown). A flat part 43 is formed on the inside of each split cord holding piece fixing part 42, and a fixing recess 44 for receiving the fixing part 16 of the split cord holding piece 10 is formed in front of the flat part 43. , V-shaped grooves 44' are formed on both sides of the fixing recess 44. Further, a guide convex portion 45 is formed on the flat portion 43 from approximately the center thereof to the inside of the cylindrical portion 41, and the fixed odor 40
It serves as a guide key when fitting the cord into the split cord presser piece. On the inside of the cylindrical part 41, at a position 90 degrees away from the guide convex part 45, there is an engaging convex part that engages with a retaining groove 19B formed on the outside of the fixed odor retaining piece 19 of the split cord holding piece 10. 46 is formed. This engagement convex portion 46 has a sloped portion 4 for facilitating insertion of the fixed odor locking piece 19.
6A is formed. A recess 47 formed at the rear of the engagement protrusion 46 is formed by shifting the fixed odor locking piece 19 of the split cord presser piece 10, which is engaged and fixed with the fixing tool 40', inward using a lining tool. , is a recess for inserting a jig for removing the engagement protrusion 46 from the locking groove 19B. An example of a method for erecting such a connector plug will now be described.

[1- First, cable 80' cable pushing 3
0, the fixed wire 40 and the coupling nut 20 are inserted, and the contact 60 is connected to the lead wire 81 of the cable 80 by crimping or the like.

■ Next, insert the connected contact 60 into the contact arrangement hole 75 of the insulating housing 70 (in Fig. 3, the contact 60
Although only one contactor 60 is shown, if there are a large number of contacts 60, all should be similarly inserted into each corresponding contactor arrangement hole).

[3} Next, a pair of split cord holding pieces 10 are attached to the connector body shell 50 and the insulating housing 70 from the left and right sides.

In this case, the flat part 15', the flat part 73, and the C locking groove part 14
, 14' and C locking projections 72, 72', B locking groove 13 and B locking projection 71, A locking groove 11 and A locking projection 51, and D locking recess 12 and ○ locking. The convex portions 52 are brought into contact or inserted into each other. [41] Next, the coupling nut 20 is inserted from the rear end of the pair of split cord holding pieces 10 combined as described above.

In this case, the coupling nut 20 is inserted from the coupling nut screw 21 side, and the notch 23 of the circular convex portion 22
When inserted so as to pass through the outer convex portion 10A of the split cord holding piece 10, the circular convex portion 22 of the coupling nut 20 comes into contact with the circular flange 53 of the connector body shell 50, and the coupling nut 20 Main body shell 5
It is locked at 0. (5) Next, when the fixed odor 40 is inserted by aligning the inner flat part 43 of the split cord holding piece fixing part 42 and the outer flat part 17 of the split cord holding piece 10, the fixed odor 40 The guide protrusion 45 on the inside of the split cord holding piece 10 is inserted into the slit formed by the notch 18 of the split cord holding piece 10 and guided.

As it is further inserted, the tip of the flat part 43 changes from the fixing recess 44 having the V-shaped groove 44' formed at the tip to the fixing convex part having the V-shaped groove 16' of the split cord holding piece 10. Tetsuai on 16. At the same time, the fixed odor locking piece 19 is shifted inward by the inner side of the cylindrical portion 41 by the sun stop convex portion 46 and the forehead oblique portion 46A, and is inserted and passed through the inside of the cylindrical portion 41, and is locked. It is locked by the convex portion 46 and the fixing groove 19B. In this way, the pair of split cord holding pieces 10 are held in a completely assembled state by the flat part 43 and cylindrical part 41 of the fixture 40. The connector of the present invention as described above has the following effects.

'1} When a pair of split cord holding pieces 10 are sandwiched between the connected connector main body shell 50 and the insulating housing 70, the split cord holding pieces 1 are firmly attached to the connector main body shell 50 and the insulating housing 70. Because they are clamped together, they do not easily come off during assembly, so assembly is smooth. When assembling a large number of cords, only the split cord holding piece 10 can be clamped between the connector body shell and the insulating housing during the assembly process. Since it becomes possible to send it to the next process, it is possible to improve the efficiency of assembly work.

{2' Split cord holding piece 10 and coupling nut 20
After assembling, attach the fixture 4 from the outside of the split cord holding piece 10.
0 is inserted to strengthen the pair of split cord holding pieces 10 as a whole, so they will not loosen or come off due to external vibrations, shocks, etc.

(Since the split cord presser fixing part 42 of the fixture 40 is assembled on the dividing line of the combined part of the 3' divided cord presser piece 10, the dividing line of the combined part of the divided cord presser piece does not appear on the outside, and the divided cord There is no risk of dust or moisture entering the presser piece 10.

'4- There is a guide convex part 45 inside the cylindrical part 41 of the fixed odor 40, and when inserting the split cord holding piece 1 river fixing tool 40, the notch part of the combination part of the split cord holding piece 10 is inserted. The fixture 4 is inserted into the slit formed by 18.
Since it serves as a guide for the cord, the insertion position of the split cord holding piece and the fixture can be easily determined, making assembly work easy.

'5 - The width and wall thickness of the split cord holding piece fixing part 42 of the fixture 40 are the same as the circular convex part 22 of the coupling nut 20.
In order to lock the split cord presser piece 10 into which the coupling nut 20 is inserted, simply by fixing the split cord presser piece 10 with the fixture 40', the coupling nut 20 can be attached to the split cord presser piece fixing part 42 of the fixture 40. Because of this, it will not come off backwards.

'6) The inside of the cylindrical part 41 of the fixture 40 is firmly fitted into the entire rear end of the split cord presser piece, and the engaging protrusion 46 present inside the cylindrical part 41 and the split cord presser Due to the engagement with the fixing groove 19B of the piece 10, the fixing tool 4
0 securely holds the split cord holding pieces 10 in the combined state.

'7- The fixture locking piece 19 of the split cord holding piece 10 is
Since the fixed odor locking piece 19 itself has elasticity due to the slits 19C and 19C' at both ends, the fixing tool 4
The locking portion 46 of 0 and the locking groove 19B can be easily engaged,
It can be easily removed using a jig. Further, it is possible to clamp the cable even if the diameter of the cable is slightly larger or smaller than the inner diameter of the fixed odor locking piece. [8' After the assembly is completed, if the wire of the connector is discovered and it needs to be disassembled, the fixing device 40 can be removed from the split cord holding piece 10 with one touch by simply picking up the odor. Furthermore, since the split cord holding piece can be disassembled even more easily, the disassembly work of the assembled product is facilitated.

■ After the split cord holding pieces 10 are assembled, the coupling nut 20 can be fitted therein, and at least a part of the split cord holding piece 10 can be inserted under the coupling nut 20, so that the connector The length of the coupling nut 20 can be made sufficiently long without increasing the overall length of the coupling nut 20. Therefore, the operation of coupling and removing the connection to the receptacle is facilitated, and the protruding surface 4' of the receptacle is lower than the position of the panel surface 7. (See Figure 1).

FIG. 4 is an exploded parts arrangement perspective view showing another embodiment of the connector of the present invention, showing only a pair of split cord holding pieces 100 and fixtures 90 and 400 of the connector, and other parts. 1 to 3 may be the same as the corresponding parts of the embodiment described with reference to FIGS.

A fixed odor 9. It is formed from a flat plate and has an almost U-shape, and the free tip has a claw part 91 extending inward.
A pair of arm portions 92 are formed behind the arm portions 92, the surfaces of which are inclined inward.

A pair of stopper convex portions 93 are formed at the rear of the arm portion 92, and a slot portion 94 is further formed at the rear thereof. On the other hand, the fixing protrusion 160 with the pair of split cord holding pieces 100 is formed with recesses 161, 161 for hooking the claws 91, and on both sides of the fixing protrusion 160, V Grooves 162, 162 are formed. When such an A fixing tool 90 is fitted into the fixing protrusion 16, the free end of the A fixing tool 90 may be inserted from the rear end of the fixing protrusion 160.

Then, the A fixed odor 90 appears on the rear end 163 of the fixed protrusion 160.
The stopper convex portion 93 will come into contact with it and be inserted. On the other hand, if you want to remove the fitted A-fixing odor 90 from the fixing protrusion 160, insert a suitable removal tool (not shown) into the slot 94 of the fixing tool 90 and pull it strongly in the removal direction. Due to its elasticity, the free tip opens outward and can be removed. The B fixed odor 400 is almost the same as the fixed odor 40 of the above-described embodiment with the pair of split cord presser fixing parts 42 removed, and the cylindrical part 410
On the inside is a fixed odor locking piece 19 of the split cord holding piece 100.
Engagement protrusion 41 1 that engages with the locking groove 198 on the outside of
is formed and continues to the chain diagonal portion 412. A jig insertion recess 413 is formed behind the locking projection 411, and a guide projection 414 is formed at a position 90 degrees away from the locking projection 411. In order to fit this B fixture 400 into the rear end of the split cord holding piece 100, the guide convex portion 414 is inserted into the slit 18 of the pair of split cord holding pieces so as to fit together. Bye. As in this embodiment, if the split cord holding piece 100 is combined with the separately formed fixtures A fixture 90 and B fixture 400, the embodiments shown in FIGS. 1 to 3 will be described. Compared to those using a fixed odor with an integrated structure, the following effects are achieved.

'1-B fixed odor 400 is divided cord presser piece fixing part 4
Since there is no 2, the material cost is low.

(2) The A fixed odor 90 can be manufactured using a press mold or the like, so it can be manufactured at low cost.

[3'A fixture 90 can easily be used in common even if the number of types of split cord holding pieces increases, leading to cost reduction.

[Brief explanation of the drawing]

Fig. 1 of the accompanying drawings is a perspective view for explaining the state of use of a connector plug with a septal, Fig. 2 is a perspective view showing a connector plug according to an embodiment of the present invention, and Fig. 3 is a perspective view of the connector shown in Fig. 2. FIG. 4 is an exploded perspective view of the arrangement of parts of the plug. FIG. 4 is a perspective view of the arrangement of exploded parts showing another embodiment of the connector of the present invention. 10...Divided cord holding piece, 16...Fixed convex portion, 19...Fixed odor locking piece, 20...
・Coupling nut, 40...Fixing tool, 50
...Connector body shell, 60 ... Contact, 70 ... Insulation housing, 72 ...
...C locking convex portion, 73...Flat portion, 80...
... Cable, 90 ... A fixing device, 100.
...Split cord holding piece, 160...Fixing part, 400... ...B fixed odor. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1. An insulating housing in which a contact is disposed, and 1, which can be assembled with each other by being clamped to the rear end of the insulating housing.
In a connector having a pair of split cord holding pieces, the pair of split cord holding pieces have means at their front ends for clamping to the outer periphery of the rear end of the insulating housing, and the cords connected to the contacts The cord holding means for holding the cord is provided at the rear end portion, and a fixing portion is formed at least in the vicinity of the mating portion on the outer periphery of the front end portion of the pair of split cord holding pieces; 1. A connector comprising: a fixture that fits into a section and a cord holding means and clamps and fixes the pair of split cord holding pieces to the rear end of the insulating housing. 2. The connector according to claim 1, wherein the fixture integrally includes means for fitting into the fixing portion and means for fitting into the cord holding means. 3. The connector according to claim 1, wherein the fixture has separate means for fitting into the fixing part and means for fitting into the cord holding means. 4. The insulating housing has a round shape, and has flat portions formed at at least two corresponding locations in the diametrical direction of its rear end, and the combination of the pair of split cord holding pieces is formed in the flat portion. A connector according to claim 1, claim 2, or claim 3, wherein the connector is made in accordance with claim 1, claim 2, or claim 3. 5. An insulating housing in which a contact is disposed, and 1 which can be assembled with each other by being clamped to the rear end of the insulating housing.
In a connector having a pair of split cord holding pieces, the pair of split cord holding pieces have means at their front ends for clamping to the outer periphery of the rear end of the insulating housing, and the cords connected to the contacts a cord holding means for holding the cord at the rear end thereof, a fixing portion is formed at least in the vicinity of the mating portion of the front end outer periphery of the pair of split cord holding pieces; a connector body shell attached to the front end of the housing, and a coupling nut provided on the outer periphery of the connector body shell through the outer periphery of the pair of split cord holding pieces that are clamped and assembled to the rear end of the insulating housing; a fixture that fits into the fixing part and the cord holding means to clamp and fix the pair of split cord holding pieces to the rear end of the insulating housing; A connector characterized by also having a locking function. 6. The connector according to claim 5, wherein the fixing portion is located under a rear end portion of a coupling nut provided on the outer periphery of the connector body shell. 7. The connector according to claim 5 or 6, wherein the fixture integrally includes means for fitting into the fixing part and means for fitting into the cord holding means. 8. The connector according to claim 5 or 8, wherein the fixture has separate means for fitting into the fixing part and means for fitting into the cord holding means. 9. The insulating housing is round and has flat portions formed at at least two corresponding locations in the diametrical direction of the rear end, and the combination of the pair of split cord holding pieces is formed in the flat portion. A connector according to claim 5 or 6 or 7 or 8, filed in .