JP2900102B2 - Guide members in electrical connectors - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide member in an electrical connector, and more particularly, to a guide plug or a guide plug attached to another electrical connector when the other electrical connector is inserted and connected to one electrical connector. The present invention relates to an improvement in a guide member for selectively receiving and holding any one of fixing screws for preventing falling off.

[0002]

2. Description of the Related Art As is well known, a guide member as described above is used for one electrical connector. The role of the guide members attached to both ends of the one electric connector is to receive the fixing screws for preventing falling off when the fixing screws for preventing falling off are attached to both ends of the other electric connector, and to interlock with them. To prevent the other electric connector, to which the fixing screw for preventing falling off is attached, from falling off from the one electric connector, and a guide plug is attached to each end of the other electric connector. In such a case, the guide plug is received, and when the guide plug is received, the positional deviation of the other electrical connector with respect to the position of the other electrical connector is corrected so as to be inserted and connected.

[0003] A look at the prior art in which these two functions are implemented by a single guide member is as shown in FIG. That is, in FIG. 10, the guide member 30 includes a head portion 31 and a shaft portion 32, and an external male screw 33 for attachment is formed on the shaft portion 32, and on the front side of a guide hole 34 passing therethrough, An internal female thread 35 is formed to be screwed with a fixing screw for preventing falling off which is attached to the other electrical connector. That is, assuming that the near side is the near area and the far side is the forward area when viewed from the direction of inserting the fixing screw or the guide plug for preventing falling off,
The inner female screw 35 is formed in a region before the guide member 30.

According to the above-mentioned prior art, a single guide member can be applied to receive both of a fixing screw or a guide pin for preventing falling off which is attached to the other electrical connector, but has the following problems. Was. That is, when the position of the other electrical connector is shifted from the position of the other electrical connector with respect to the position of the predetermined electrical connector, the guide plug is surely inserted into the guide hole 34 of the guide member, thereby causing the positional shift between the two electrical connectors. Is corrected, but when the guide plug is inserted for the correction, the inner female screw 35 formed in the front region may be damaged. That is, during the passage through the guide hole 34, the thread of the inner female thread 35 located in the front region on the surface of the guide plug may be damaged, and the screw function may be lost.

Therefore, when focusing only on the guide member, it is conceivable that the inner female thread is simply formed at the front end portion, as disclosed in Japanese Utility Model Application No. 63-127356 and Japanese Patent Application Laid-Open No. 63-13283. There are techniques indicated. That is, in Japanese Utility Model Application Laid-Open No. 63-127356, when the back wiring board, the locking nut, and the package connector are used as the guide members, the area near the guide pin corresponding to the fixing screw for preventing falling is inserted. The inner female screw was formed in a region ahead of the inner thread. Also, in the above-mentioned Japanese Patent Application Laid-Open No. 63-13283, an internal female screw is formed in a region in front of a nut corresponding to the guide member and in a region ahead of the nut.

[0006]

As described above, in the above-mentioned guide member, it is conceivable that the inner female screw is simply formed at the front end portion. However, the idea of simply forming the inner female thread on the tip portion is an idea when focusing solely on the guide member, and the initial problem is taken into consideration when considering the relationship with the fixing screw for preventing falling off or the guide plug. Is something that cannot be solved at all. Specifically, in the above-mentioned Japanese Patent Application No. 63-127356, when a guide pin is inserted, the tip of the guide pin passes through the internal female screw and is inserted further into the back. In other words, when focusing on only the guide member,
Although formed in the area ahead of the area in front,
When viewed from the relation with the guide pin, the guide pin is at a position where the guide pin is inserted, and eventually the internal female screw may be damaged when the guide pin is inserted, and the screw function may be lost. Also, in the above-mentioned JP-A-63-13283,
When the bolt is inserted, the threaded portion at the tip of the bolt passes through without being screwed to the internal female screw and is inserted further into the back. In other words, the inner female thread is
When focusing only on the guide member, although it is formed in the forward region rather than the near region, it is at a position where the bolt is inserted when viewed from the relationship with the bolt, and eventually the inner female screw is inserted when this bolt is inserted. There was a risk of damage and loss of screw function.

Accordingly, an object of the present invention is to not only have a function of selectively receiving and holding either of the captive screw and the guide pin attached to the other electrical connector, but also to have a function of selectively receiving the other electrical connector. When a guide plug is attached to the connector, it is necessary to provide a means that never inserts the guide plug into the guide hole without damaging the internal female screw that engages with the captive screw on the guide plug. is there.

[0008]

In order to achieve the above object, the present invention has the following technical means. That is, the present invention will be described with reference to the reference numerals in the accompanying drawings corresponding to the embodiments.
One electrical connector 1 and the other electrical connector 18
Is connected, the guide member 25 for selectively receiving and holding either the guide plug 25 attached to the other electrical connector 18 or the fixing screw 20 for preventing falling off, in which the fixing screw 23 is formed at the tip end portion, is used. When the guide plug 25 or the drop-off preventing fixing screw 20 is viewed from the insertion direction, the near side is the near side of the guide member 9 and the far side is the front side area. And a guide hole 14 for receiving the guide hole 14 is formed in a forward region on the back side of the guide hole 14.
Drop-off prevention fixing screw 2 inserted through guide hole 14
0 in the guide member of the electrical connector in which the internal female thread 15 for receiving the internal female thread 1 is formed.
Reference numeral 5 denotes a position which is located on the back side of the guide plug 25 when the insertion of the guide plug 25 into the guide member 9 is completed, and which prevents the fall-off when the fixing screw 20 for preventing the fall is inserted into the guide member 9. Fixing screw 2
A guide member in the electrical connector, wherein the fixing screw 23 formed at the leading end of the inner connector 15 is formed at a position where it is screwed to the inner female screw 15.

[0009]

According to the above construction, the guide plug 25 is attached to the other electric connector 18, and when the other electric connector 18 is inserted and connected to the one electric connector 1, the one and the other electric connectors 1 are connected. , 18 are displaced from each other, if the guide plug 25 of the other electrical connector 18 is inserted into the guide hole 14 of the guide member 9 of the one electrical connector 1, the one and the other electrical connectors 1, 18 will be described. The positional deviation of the guide plug 25 is corrected. Even if the plug portion 27 of the guide plug 25 rubs the surface of the guide hole 14, the inner female screw 15 Since it is formed further in the front area on the back side of the guide hole 14 than the insertion completed state,
There is no damage by the guide plug 25. Further, the other electric connector 18 is provided with a fixing screw 20 for preventing falling in which a fixing screw 23 is formed at a tip portion, and when the other electric connector 18 is inserted and connected to one electric connector 1, Even if the other electric connectors 1 and 18 are misaligned with each other, the fixing screw 20 for preventing the other electric connector 18 from dropping is passed through the guide hole 14 of the guide member 9 of the one electric connector 1 to prevent the electric connector 1 from dropping. If the fixing screw 23 at the tip of the fixing screw 20 is screwed to the inner female screw 15, the positional deviation between the one and the other electrical connectors 1 and 18 is corrected.
At this time, the fixing screw 2 at the tip of the fixing screw 20 for preventing falling off
Since the insertion is completed when 0 is screwed into the inner female screw 15, the inner female screw 15 is not damaged by the drop-off preventing fixing screw 20.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings and FIGS. 1 to 4 show an example of an electric connector 1 to which a guide member of the present invention is applied,
Terminal mounting space 3 formed in housing 2 as is well known
Each of the plurality of terminals 4 is mounted side by side at a predetermined pitch along the longitudinal direction of the housing 2. Reference numeral 5 indicates a contact portion of each terminal 4, and reference numeral 6 indicates a solder tail.

A guide member 9 is attached to each of a left end 7 and a right end 8 of the electrical connector. That is, mounting portions 10 are formed on both left and right ends of the housing 2 so as to project laterally, and the guide members 9 are mounted on the respective mounting portions 10.

The guide member 9 will be described with reference to FIGS. 5 to 7. Since the left and right guide members 9 are the same, the guide member 9 at the right end 8 shown in FIG. 11 and a shaft portion 12, and an external thread 13 is formed outside the shaft portion 12. The guide hole 1 penetrates from the head 11 to the shaft 12.
4 are formed. What is important here is that an internal female thread 15 is formed in the forward region of the shaft portion 12, that is, inside the shaft portion 12 farthest from the head 14. More specifically, when the insertion of the guide plug 25 into the guide member 9 is completed, the inner female screw 15 is located deeper than the guide plug 25, and At the end of the insertion, the fixing screw 23 formed at the tip of the drop-preventing fixing screw 20 is formed at a position where it is screwed to the internal female screw 15. The level of the root of the inner female screw 15 and the level of the inner surface of the guide hole 14 match, and the thread of the inner female screw 15 is formed to protrude inward from the inner surface of the guide hole 14. In FIG. 5, when the guide member 9 is mounted on the mounting portion 10 of the one electrical connector 1, the guide member 9 is mounted via a mounting panel 17 on which the electrical connector 1 is mounted and a spring washer 16. Is shown.

Although various materials can be used for the guide member 9, brass plated with nickel is considered. For example, the outer male screw 13 is, for example, an M4 × 0.5 meter fine thread, and the inner female thread 15 is, for example, an M2.6 × 0.45 meter coarse thread.

Next, how to use the guide member 9 will be described with reference to FIGS. FIG. 8 shows a state where one electric connector 1 is connected to the other electric connector 18. After being connected to the one electrical connector 1, the other electrical connector 18 is prevented from falling off by an unexpected external force. That is, fixing screws 20 for preventing falling off are attached to both left and right ends of the other electrical connector 18. The fixing screws 20 for preventing falling off are respectively attached to the left and right mounting portions 19 of the other electrical connector 18, and a grip portion 21, a rod portion 22 ahead of the fixing portion 20, and a fixing screw 23 formed at a tip end portion of the rod portion 22. Consisting of The fixing screw 23 is formed so as to be screwed to the internal female screw 15 of the guide member 9. In this connection state, that is, in the connection termination state, the fixing screw 23 at the tip of the rod portion 22 passes through the guide hole 14 of the guide member 9 and the inner female screw formed in the forward region of the shaft portion 12 of the guide member 9. 15 is screwed. This prevents the other electrical connector 18 from falling off from the one electrical connector 1.

FIG. 9 shows a case where a guide plug 25 is attached to the other electric connector 18 when the other electric connector 18 with the guide plug 25 is connected to the one electric connector 1. 2 shows a state where a guide plug 25 of the other electrical connector 18 is inserted into a guide member 9 of the electrical connector 1. That is, the guide plug 25 is attached to the other electrical connector 18 via the attachment panel 24 and includes a base 26 and a plug 27. Then, the plug portion 27 is inserted into the guide hole 14 of the guide member 9. In the completely inserted state, that is, in the insertion completed state, the length of the plug portion 27 or the diameter of the distal end is determined so that the distal end of the plug portion 27 does not abut against the internal female screw 15 of the guide member 9. In other words, in other words, the inner female screw 15 is located in a forward region on the back side of the guide plug 25.

When the other electrical connector 18 is connected to the one electrical connector 1, the position of the electrical connector 1 is set to, for example, a position along the XX direction in FIG.
Alternatively, the position of the other electrical connector 18 may be shifted to a position along a direction orthogonal to the XX direction. In this case, the mutual displacement is corrected by inserting the guide plug 25 into the guide member 9. However, in the correction process when the guide plug is inserted, the related art uses the guide plug 25. In some cases, the plug portion 27 may damage the inner female thread 15 of the guide member 9 and lose its screw function.
Since the inner female screw 15 is formed in the forward region of the shaft portion 12, that is, at the tip of the guide hole 14, there is no possibility that the plug portion 27 will damage the inner female screw 15.

[0017]

As described above in detail, according to the present invention, a guide plug is attached to the other electric connector, and when the other electric connector is inserted and connected to one electric connector, one and the other electric connector are connected. Even if the positions of the electric connectors are misaligned, if the guide plug of the other electric connector is inserted into the guide hole of the guide member of the one electric connector, the misalignment of the one and the other electric connectors is corrected. In this case, even if the plug portion of the guide plug rubs the surface of the guide hole, the inner female screw is located further on the back side of the guide hole than in the state where the guide plug has been completely inserted. Because it is formed in the area,
It is not damaged by the guide plug. Also,
The other electrical connector is provided with a fall-off prevention fixing screw having a fixing screw formed at a tip portion. When the other electric connector is inserted and connected to one of the electric connectors, the other electric connector is connected to the other electric connector. Even if they are misaligned, pass the captive screw of the other electrical connector through the guide hole of the guide member of one electrical connector and screw the captive screw at the tip of the captive screw into the internal female thread. If this is done, the misalignment of the one and the other electrical connectors will be corrected, but in this case, the fixing screw at the tip of the drop-prevention fixing screw is screwed into the internal female screw. Since the operation is completed, the inner female screw is not damaged by the falling-off preventing fixing screw, and the screw function is not likely to be lost. Therefore, it is not necessary to process the guide member with a material having a particularly high surface hardness, and it is not necessary to perform a special heat treatment. Conversely, if a material having a high surface hardness is selected or a special heat treatment is performed, Poor workability or increased man-hours reduces productivity, shortens the life of blades for production, and increases overall cost, but increases surface hardness and does not require special heat treatment. There are no disadvantages as described above. In addition, since there is no damage to the inner female thread by the guide plug, it is not necessary for the guide plug to have a movable structure solely for this reason. If the guide plug is made to have a movable structure, the guideability will be reduced, but there is no concern about this.

[Brief description of the drawings]

FIG. 1 is a plan view of one electrical connector.

FIG. 2 is a front view of one electrical connector shown in FIG.

FIG. 3 is a right side view of one of the electrical connectors shown in FIG. 1;

FIG. 4 is a sectional view taken along line AA of FIG. 2;

FIG. 5 is a sectional view taken along line BB of FIG. 2;

FIG. 6 is a sectional view of a guide member.

FIG. 7 is a front view of a guide member.

FIG. 8 is a view showing a state in which one electric connector is connected to another electric connector, and a fixing screw for preventing the other electric connector from falling off is fastened to a guide member of one electric connector.

FIG. 9 is a view showing a state in which one electric connector is connected to the other electric connector, and a guide plug of the other electric connector is inserted into a guide member of one electric connector.

FIG. 10 is a cross-sectional view of a conventional guide member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 One electrical connector 2 Housing 3 Terminal mounting space 4 Terminal 5 Contact part 6 Tail 7 Left end 8 Right end 9 Guide member 10 Mounting part 11 Head 12 Shaft part 13 External male screw 14 Guide hole 15 Internal female screw 16 Spring washer 17 Mounting Panel 18 The other electrical connector 19 Attachment part 20 Dropping prevention fixing screw 21 Handle part 22 Rod part 23 Fixing screw 24 Mounting panel 25 Guide plug 26 Base 27 Plug part 30 Conventional guide member 31 Head part 32 Shaft part 33 Outer male screw 34 Guide hole 35 Internal female thread

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H01R 13/631-13/639

Claims (1)

(57) [Claims] When one electric connector is connected to another electric connector, the other electric connector is connected to the other electric connector.
8 is a guide member 9 for selectively receiving and holding either the guide plug 25 attached to the mounting member 8 or the fixing screw 20 for preventing falling-off in which the fixing screw 23 is formed at the tip portion. Prevention fixing screw 20
Assuming that the front side is the front area of the guide member 9 and the rear side is the front area when viewed from the insertion direction of the guide hole 1, the guide hole 1 for receiving the guide plug 25 is located in the front area of the guide member 9.
4 is formed, and an inner female screw 15 is formed in a forward region deeper than the guide hole 14 to receive a fixing screw 20 for preventing the cap from being inserted through the guide hole 14. When the insertion of the guide plug 25 into the guide member 9 is completed, the guide plug 2
5 and when the insertion of the drop-preventing fixing screw 20 into the guide member 9 is completed, the fixing screw 23 formed at the tip of the drop-preventing fixing screw 20 is connected to the inner female screw. A guide member in the electrical connector, wherein the guide member is formed at a position where the guide member is screwed to the connector.