JPH082934Y2 - Connector with guide device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a connector with a guide device, and in particular, it has no contact circuit among a large number of contact insertion holes already formed in a connector housing and is vacant. The present invention relates to a connector with a guide device configured by using a contact insertion hole.

[Prior Art] FIGS. 5A and 5B show the structure of a conventional connector with a guide device of this type.

In the figure, a pair of male connector 10 and female connector 20
Has a male connector housing 11 and a female connector housing 21, respectively.
Contact insertion holes 13 and 23 into which a large number of male contacts 12 and female contacts 22 are inserted are formed therein. The male contact 12 inserted into the contact insertion hole 13 is, for example, a pin type described in Japanese Patent Publication No. 40-2581.
The elastic finger-shaped member (14) correctly positions the center of the contact insertion hole (12).

Step portions 15 and 24 are formed at both ends of the male and female connector housings 11 and 21 in the longitudinal direction, and the cap screw 16 and the cap screw 16 are screwed so as to penetrate almost the center of the step portions 15 and 24. Mounting holes 17 and 26 are provided for mounting the protruding pins 25 to be fitted. The cap screws 16 and the projecting pins 25 are provided one by one for the male and female connector housings 11 and 21, respectively, and although not shown, a female screw formed inside the cap screw 16 and the projecting pin 25 are provided. It is configured to be screwed with a male screw 25a formed at the tip of 25. The protruding end 16a of the cap screw 16 attached to the male connector housing 11 side from the attachment hole 17 is inserted into the bottomed hole 18a of the rod 18, and is fixed by a caulking pin 19 or the like. The other end of the rod 18 in which the bottomed hole 18a is formed is provided with a knob (not shown) so that the rod 18 itself can be manually rotated. Further, in the mounting holes 26 formed in the step portions 24 at both ends of the female connector housing 21, the projecting pin 25 having the screw portion 25b is provided.
And a cap screw 16 having a screw portion 16b is fixed by a nut 27.

Further, as shown in FIG. 5 (B), a pair of connectors 28 with guide devices are provided on the corners of the step portions 15 and 24 of the male and female housings 11 and 21 at the corners thereof. There is. The connector 28 with a guide device is not shown in the cross section shown in FIG.
Above and below 11,21, there are illustrated guide pins 29, guide sockets 30, and nuts 31 as their constituent members. The guide pin 29 is attached to the female connector housing by the nut 31.
It is attached to the step 24 of 21 and the guide socket 30
Is also attached to the step portion 15 of the male connector housing 11 by a nut 31.

To connect the male and female connectors 10 and 20 configured as described above, the male housing 11 and the female housing 21 are butted,
After shallowly inserting the male contact 12 in the male housing 11 into the female contact 22 in the female housing 21, the cap screw 16 and the projecting pin 25 are alternately rotated by the knob on the rear end of the rod 18 attached to the male housing. , The projection pin 25 and the cap nut 16 attached to the female housing 21 which is the other party.

In the above case, the guide pin 29 enters the guide socket 30 following the screwing of the projecting pin 25 and the cap nut 16, and these are the inclination of the male contact 12 with respect to the female contact 22 and the male and female housings 11, 21. Plays a role of a guide device for reducing the positional deviation of the.

[Problems to be Solved by the Invention] A conventional connector with a guide device in the connector having the above-described structure has a guide pin 29, a guide socket 30, and a stepped portion 15,24 of the male and female connector housings 11,21. Since it has the nut 31 for mounting, the number of parts that make up the connector with a guide device is large, and the step portion 1
It takes a lot of time to assemble because it is fixed to 5,24 with a nut. Further, in addition to the fastening means for the male and female connector housings at the center of the step portions 15 and 24 having a relatively small area, further providing a guide device is to provide through holes for inserting these components in close proximity to each other. There is also a problem to be solved in that the mechanical strength of the connector housing itself is deteriorated.

The present invention has been made in order to solve the above problems, does not require a screw member, has a small number of parts, is easy to assemble, and does not particularly increase the manufacturing cost.
It is an object of the present invention to provide a connector with a guide device that does not deteriorate the mechanical strength of male and female connector housings.

[Means for Solving the Problems] The present invention comprises a male and female connector housing having contact insertion holes into which a large number of male and female contacts are inserted, the male and female connector housings being provided in the male and female connector housings. In a connector with a guide device that is guided by the guide means at the time of fitting, the guide means is fixed by latching engagement with the contact insertion hole or fitting engagement, and is inserted into the corresponding contact insertion hole. The guide pins are arranged and fixed in at least two contact insertion holes in which the male contacts or the female contacts are not inserted because they are pins and are empty circuits in the contact insertion holes.

[Operation] The connector with the guide device of the present invention has the locking means formed at the rear end of the guide pin by inserting the rear end of the guide pin into the contact insertion hole in which the male contact or the female contact is not inserted because it becomes an empty circuit. Fixed in the contact insertion hole.

The tip of the guide pin protruding from the front of the male connector housing or the female connector housing enters the contact insertion hole of the mating connector housing when the male and female connectors are coupled, and the position of the male and female connector housings shifts. , Prevent tilting, and prevent damage to male and female contacts.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

In the figure, the same parts as those of the conventional configuration shown in FIG. 5 are designated by the same reference numerals.

In FIG. 1, a male connector housing 11 and a female connector housing 21 are formed with a large number of contact insertion holes 23 for fixing male and female contacts as in the conventional case. Only the contact insertion hole 23 in which the guide pin 39 for configuring the above is inserted and fixed is shown in cross section. This contact insertion hole
The guide pin 39 inserted into the 23 is shown in FIG.
As shown in (B) and (C), a taper portion 40 formed at the rear end portion, a slit portion 41 formed in the axial direction, and a compression portion formed between the taper portion 40 and the pin shaft portion 43. It is composed of a diameter portion 42 and a pin portion 44 provided at the tip of the pin shaft portion 43.

The guide pin 39 having the above-described structure is attached to either the male or female connector housing 11 or 21 by utilizing the locking means. For example, as shown in FIG. Insert a pair of guide pins 39 against
Fixed. Female connector housing for this guide pin 39
FIG. 4 shows details of the process of inserting / fixing the guide pin 39 into and removing it from the guide pin 39. In this figure, first, the process of inserting and fixing the guide pin 39 will be explained.
When the taper portion 40 at the rear end of 39 is applied to the edge of the contact insertion hole 23 of the female connector housing 21 and moved straight, the state shown in FIG. 9A changes to the state shown in FIG. .

That is, the tip of the tapered portion 40 is restricted by the inner wall of the reduced diameter portion 23a formed inside the contact insertion hole 23, and the tip of the tapered portion 40 is narrowed toward the center by the slit 41. Then, when the guide pin 39 is further advanced into the contact insertion hole 23, the enlarged diameter end portion 40a of the tapered portion 40 is changed to the reduced diameter portion 2 of the contact insertion hole 23 as shown in FIG.
After passing 3a, due to the elasticity of the tapered portion 40 itself of the guide pin 39, the tapered portion 40 expands in the radial direction, and the enlarged diameter end portion 40 fits into the stepped portion of the reduced diameter portion 23a of the contact insertion hole 23 and is guided. The pin 39 will be fixed.

FIGS. 4D and 4E are sectional views for explaining the case where the guide pin 39 is removed from the contact insertion hole 23.

That is, the tubular body 50 has an inner diameter slightly smaller than the outer diameter of the enlarged diameter end portion 40a of the tapered portion 40 of the guide pin 39, and has an outer diameter that is large enough to fit in the contact insertion hole 23.
A support body 51 to which the tubular body 50 is fixed has a diameter-expanding head portion 52a at its tip, a pressing body 53 at its rear end, and a rod provided so as to be able to move forward and backward in the tubular body 50. A detaching tool 54 consisting of 52 and 52 is used for detaching the guide pin 39. The detaching tool 54 grips the support body 51 to which the tubular body 50 is integrally attached, and inserts the tip end portion of the tubular body 50 from the rear of the contact insertion hole 23. Then, the enlarged end portion 40a of the tapered portion 40 is brought into contact with the tip edge portion of the tubular body 50, and when the tubular body 50 is further advanced into the contact insertion hole 23 as it is, the tapered portion 40 is slotted 41. Because of this, the contact insertion hole 23 is shrunk toward the center. Then, the rod 52 is advanced to the inside of the tubular body 50 via the pressing body 53, and the tapered portion 40 is pressed forward by the enlarged diameter head 52a at the tip thereof as shown in FIG. The pin 39 is removed from the contact insertion hole 23. When the guide pin 39 is attached to the contact insertion hole 23, it can be easily attached manually without using a special tool, but when assembling for mass production, the guide pin 39 should be held. It can be easily realized by preparing an automatic machine or the like provided with an actuator or the like that reciprocates.

The connector with the guide device including the guide pin 39 as described above operates as follows.

That is, when the male connector housing 11 is abutted against the female connector housing 21 of FIG. 1 and the rod 18 is alternately rotated by the knob 18b, the cap screw 16 and the projecting pin 25 are coupled, and the male and female connector housings are connected. 11,21 gradually approach each other, and the two are screwed together. At that time, the pin portion 43 of the guide pin 39 protruding from the end face of the female connector housing 21 enters into the contact insertion hole 23 of the mating male connector housing 11 along with the progress of screw connection, and the housing 11 , 21 to prevent misalignment and inclination.

As a result, it is possible to prevent the occurrence of damage such as galling and bending due to the positional deviation during insertion of the male and female contacts inserted and fixed in the contact insertion hole 23.

In the above embodiment, the guide pin 25 is described as a connector with a guide device in which the guide pin 25 is fixed to the connector insertion hole 23 of the female connector housing 21, but it goes without saying that the guide pin 39 is attached to the male connector housing 11 side. The same effect as above can be obtained with the device-equipped connector.

Further, as the locking means for the connector insertion hole 23, the taper portion 40 and the slit 41 is used as the locking means for the concave and convex fitting utilizing the spring force, but the diameters of the guide pin 25 and the connector insertion hole 23 are simply taken into consideration. The locking means may be a so-called fitting method.

[Advantages of the Invention] According to the present invention, the connector with the guide device is configured by using the guide pin having the locking means that does not depend on the screwing and the contact insertion hole that is already formed. It can be manufactured at low cost without increasing the number of assembly steps and the number of parts such as nuts required for screwing the male and female connector housings as in the conventional case, and the connector with the guide device is provided on the relatively narrow step of the connector housing. Since it is not necessary, there is an excellent effect that the mechanical strength of the connector housing itself is not deteriorated.

[Brief description of drawings]

FIG. 1 is a partially cutaway sectional view of a connector with a guide device showing an embodiment of the present invention, FIG. 2 is a partially cutaway sectional view showing an assembling process of the connector with a guide device, and FIG. 3 is the guide device. The guide pin which is a component of the attached connector is shown in FIG. 4A, which is a left side view thereof, FIG. 4B is a front view thereof, FIG. 4C is a right side view thereof, and FIG. , (B),
(C) is a sectional view showing the details of the mounting process of the guide pin, (D) and (E) are sectional views showing how to disengage the guide pin, and FIG. 5 (A) is a conventional guide device. FIG. 1B is a left side view of the connector, which is a partially cutaway sectional view for explaining the connector. 10 …… Male connector 11 …… Male connector housing 12 …… Male contact 13 …… Contact insertion hole 15,24 …… Step 16 …… Bag screw 17,26 …… Mounting hole 39 …… Guide pin 40 …… Taper Part 41 …… Slit 42 …… Reduced diameter part 43 …… Pin shaft part 44 …… Pin part

Claims (1)

[Scope of utility model registration request] 1. A male / female connector housing having a contact insertion hole into which a large number of male / female contacts are inserted, said male / female connector housing being fitted by guide means provided on said male / female connector housing. In the guided connector with the guide device, the guide means is a guide pin which is fixed by latching engagement with the contact insertion hole or fitting engagement and is inserted into a corresponding contact insertion hole. A connector with a guide device, wherein each of the guide pins is arranged and fixed in at least two contact insertion holes into which the male contact or the female contact is not inserted because it becomes an empty circuit in the hole.