JPH0749748Y2 - Cable connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a cable connector to be connected to a cable such as a flat ribbon cable.

[Conventional technology]

Conventionally, as a connector for a cable, as shown in FIGS. 9 to 11, there is a connector in which an electrically insulating cable pressing member 5 is combined with an insulator 3 having a plurality of conductive contacts 1 incorporated therein. A large groove portion 7 is formed on the upper surface of the insulator 3. A holding portion 11 which is an intermediate portion of the contact 1 is press-fitted and fixed to the rear wall portion 9 of the insulator 3. On the upper portion of the contact 1, a contact portion 13 is formed which is bent toward the inner wall surface of the rear wall portion 9 located behind the groove portion 7. At the lower part of the contact 1, a terminal portion 15 extending from the bottom surface of the insulator 3 to the outside is formed. A notch 19 is formed on the front wall 17 of the insulator 3. Further, on the upper portion of the cable pressing member 5, an operation portion 21 for operating the cable pressing member 5 so as to be vertically movable is formed. A cable pressing portion 23 extending to the inner wall surface of the front wall portion 17 of the insulator 3 is formed on the lower surface of the operation portion 21. Further, the operation portion 21 is formed with a cable insertion hole 25 penetrating vertically.

To connect cable 27 to this cable connector,
First, the cable pressing member 5 is set at the position shown by the chain double-dashed line in FIG.
The cable 27 is inserted toward the groove portion 7 of FIG. Further, when the cable pressing member 5 is pushed down toward the groove portion 7 of the insulator 3, the conductive portion of the cable 27 is brought into electrical contact with the contact portion 13 of the contact 1. That is, the cable 27 is pressed against the contact portion 13 of the contact 1 by the cable pressing member 23 of the cable pressing member 5.

[Problems to be solved by the invention]

However, when the cable 27 is inserted into the groove portion 7 of the insulator 3 from the cable insertion hole 25 of the cable pressing member 5, the insertion amount of the cable 27 may be insufficient.

Further, the cable 27 may be obliquely inserted when being inserted into the groove portion 7 from the cable insertion hole 25. In such a state, when the cable pressing member 5 is pushed down,
Since the contact portion 13 of the contact 1 and the cable 27 are not accurately contacted with each other, there is a problem that a connection failure occurs.

Therefore, it is an object of the present invention to provide a cable connector that corrects an imperfect insertion of a cable and guides the cable to the correct position.

[Means for solving problems]

According to the present invention, an insulator having a groove portion for receiving a cable, a conductive contact held by the insulator and having a contact portion located in the groove portion at a tip, and a pressing member having a pressing surface are provided. The pressing member is movable between a pressing posture and a pressing releasing posture in a state where the cable is inserted in the groove portion, and in the pressing posture, the cable is inserted into the insulator and the cable inserted in the groove portion is inserted. In the cable connector, which is pressed by the pressing surface toward the contact portion, and in the pressing release posture, the pressing by the pressing surface with respect to the cable inserted into the groove and the contact portion is released. On both sides of the insertion end of the cable into the groove, stepped or notched engagement receiving portions are formed at a distance from the insertion end. The pressing member is engaged with the engagement receiving portion by the movement from the pressing release posture to the pressing posture in a state where the cable is inserted in the groove portion. From both sides of the pressing surface. The engagement member has engaging portions that protrude substantially perpendicularly to the pressing surface, and is moved by the movement of the pressing member from the pressing release posture to the pressing posture when the cable is inserted in the groove portion. The engagement of the mating portion with the engagement receiving portion corrects the incomplete insertion of the cable into the groove portion to guide the cable to the correct position, and the pressing member moves from the pressing position to the pressing releasing position. By the movement of, the cable connector characterized in that the engagement receiving portion of the cable inserted in the groove is disengaged from the engagement portion of the pressing member.

〔Example〕

1 to 3 show an embodiment of a cable connector of the present invention.

The illustrated cable connector has a plurality of conductive contacts 31, an insulator 33 incorporating these contacts 31, and an electrically insulating cable pressing member 35 combined with the insulator 33.

A large groove portion 37 is formed on the upper surface of the insulator 33. The rear wall 39 of the insulator 33 has a contact
A holding portion 41, which is an intermediate portion of 31, is press-fitted and fixed. On the upper part of the contact 31, a contact part 43 is formed which is bent toward the inner wall surface of the rear wall part 39 behind the groove part 37. A terminal portion 45 extending from the bottom surface of the insulator 33 to the outside is formed in the lower portion of the contact 31.

A notch 49 is formed in the upper portion of the front wall portion 47 opposite to the rear wall portion 39 of the insulator 33.

Further, the operation portion 51 is provided on the front portion above the cable pressing member 35.
Are formed. A cable pressing portion 53 extending to the inner wall surface of the front wall portion 47 of the insulator 33 is formed on the lower surface of the operation portion 51. On the opposite side of the operation portion 51, that is, on the rear side, an engagement portion 55 that projects toward the inner wall surface of the insulator 33 is formed. The engaging portion 55 is in the left-right direction of the cable pressing member 35 (the direction perpendicular to the paper surface in FIG. 1).
Is formed only on both ends in the upper part of the.

On the other hand, a cable 57 is pressed and sandwiched between the cable pressing portion 53 and the contact portion 43 of the contact 31. This cable
The conductive portion of 57 is in contact with the contact portion 43. As shown in FIGS. 3 and 4, the lower surface of the engaging portion 55 is pressed downward by stepped engagement receiving portions 59 formed on both sides of the cable 57 in the width direction.

Now, when the cable 57 is inserted into the groove portion 37 of the insulator 33, the conductive portion of the cable 57 faces the contact portion 43 of the contact 31. After that, the cable pressing member 35 is pushed downward from the position of the chain double-dashed line in FIG.
Insert into 37. At this time, the engagement receiving portion 59 of the cable 57 is
It is pushed downward by the engaging portion 55 of the cable pressing member 35.

According to this, if the insertion amount of the cable 57 is insufficient or the cable 57 is inserted at an angle,
The cable pressing member 35 cannot be moved to the proper position due to the difference in width of 57 and the engaging portion 55. If the engaging portion 55 is caught by the engaging receiving portion 59 of the cable 57, the cable 57 is corrected to the proper position by the operation of the cable engaging member 35.

When the downward movement of the cable pressing member 35 is completed, the cable 57 is held between the cable pressing portion 53 and the contact portion 43 having an elastic force. The cable shown in FIG. 3 and FIG.
The cable 57 can be similarly positioned by forming a notch-shaped engagement receiving portion 61 as shown in FIG. 5 in the cable 57 instead of the engagement receiving portion 59 of the cable 57.

6 to 8 show another embodiment of the cable connector.

In the illustrated cable connector, FIGS.
A rotary type cable pressing member 65 is used in place of the slide type cable pressing member 35 of the cable connector shown in the figure. Shafts are formed at both ends of the cable pressing member 65 in the left-right direction in FIG. These shafts are rotatably held on both side surfaces 69 of the insulator 67 in the left-right direction in FIG. An operation portion 71 is formed on the cable pressing member 65. The operation portion 71 extends toward the cutout portion 75 of the front wall portion 73 of the insulator 67. The cable pressing member 65 has a cable pressing surface 77 facing the contact portion 43 of the contact 31. A cable 57 indicated by a chain double-dashed line in FIG. 7 is sandwiched between the elastic contact portion 43 and the cable pressing surface 77. As shown in FIGS. 4 and 5, the cable 57 is held by the engaging portions 79 formed on the cable pressing member 65 by the engaging receiving portions 59 and 61.

In this cable connector, as shown in FIG. 8, the operating portion 71 of the cable pressing member 65 is connected to the insulator 67.
The cable 57 is inserted into the groove portion 81 of the insulator 67 with the cable 57 being moved outward. Then, when the cable pressing member 65 is rotated clockwise, the engaging portion 79 causes the cable 57 to move.
The cable 57 is moved to the proper position while being engaged with the engagement receiving portions 59 and 61. Finally, the cable 57 is held between the cable pressing surface 77 of the cable pressing member 65 and the contact portion 43.

As described above, the cable pressing member 65 cannot be rotated to a predetermined posture unless the cable 57 is inserted in the proper position. Therefore, the cable pressing member 65 can determine whether the insertion of the cable 57 is complete or incomplete.

The distance a from the longitudinal end of the cable 57 shown in FIGS. 4 and 5 to the engagement receiving portions 59, 61 is determined by the relationship between the cable pressing members 35, 65 shown in FIGS. 1 and 7. The distance b from the lower surface of the joint portion 55, 79 to the bottom surface of the groove portion 37, 81 of the insulator 33, 67 is made smaller than or equal to the distance b.

[Effect of device]

As described in the above embodiments, according to the cable connector of the present invention, when the insertion amount of the cable is insufficient or the cable is obliquely inserted, this state can be grasped by operating the cable pressing member. You can Also,
A little tuck in the insertion of the cable is corrected by operating the cable pressing member. Therefore, it is possible to prevent a work mistake during the work of connecting the cables.

Further, according to the present invention, the pressing member is engaged with the engagement receiving portion of the cable inserted in the groove by the movement of the pressing member from the pressing release posture to the pressing posture when the cable is inserted in the groove portion of the insulator. Since the parts are engaged, it is not necessary to previously engage the engagement part of the pressing member with the engagement receiving part of the cable, and the movement of the pressing member from the pressing position to the pressing releasing position inserts it into the groove part. Since the engagement of the engaging portion of the pressing member is released from the engagement receiving portion of the cable, it is easy to release the pressure and the engagement, and the operability is good.

[Brief description of drawings]

1 to 3 show an embodiment of the cable connector of the present invention. FIG. 1 is a sectional view taken along the line I-I of FIG. 3, FIG. 2 is a sectional view taken along the line II-II of FIG. 3 is a front view of a cable connector, FIG. 4 is a front view showing an example of a cable used for the cable connector of the present invention, FIG. 5 is a front view of only a part of another example of the cable, and FIG. FIG. 7 is a front view showing another embodiment of the cable connector of the present invention, FIG.
VII sectional view, FIG. 8 is a VIII-VIII sectional view of FIG. 6, FIGS. 9 to 11 show a conventional cable connector, and FIG. 9 is a IX-IX sectional view of FIG. FIG. 11 is a sectional view taken along line XX in FIG. 9, and FIG. 11 is a front view. 1: Contact, 3: Insulator, 5: Cable pressing member, 7: Groove part, 13: Contact part, 23: Cable pressing part, 27: Cable, 31: Contact, 33: Insulator, 35: Cable pressing member, 37: Groove part , 51: operating part, 53: cable pressing part, 55: engaging part, 57: cable, 61: engaging receiving part, 65: cable pressing member, 67: insulator, 77: cable pressing surface.

Claims (1)

[Scope of utility model registration request] 1. A pressing member comprising: an insulator having a groove portion for receiving a cable; a conductive contact held by the insulator and having a contact portion located at the groove portion at a tip thereof; and a pressing member having a pressing surface. The member is
The cable is movable between a pressing position and a pressing releasing position in a state of being inserted in the groove portion, and in the pressing position,
In the insulator, the cable inserted into the groove is pressed by the pressing surface toward the contact portion, and in the pressing release posture, the cable inserted into the groove and the contact portion are pressed against each other. In the cable connector for releasing the pressing by the pressing surface, stepped or notched engagement receiving portions are respectively provided on both side surfaces of the insertion tip of the cable into the groove portion at a distance from the insertion tip. The pressing member is formed so as to be engaged with the engagement receiving portion by the movement from the pressing release posture to the pressing posture when the cable is inserted in the groove portion. From the both sides of the pressing member, there is an engaging portion that protrudes substantially perpendicularly to the pressing surface, and when the cable is inserted into the groove portion, the pressing member is lifted from the pressing release posture. Due to the engagement of the engagement portion with the engagement receiving portion due to the movement to the pressing posture, incomplete insertion of the cable into the groove portion is corrected to guide the cable to the correct position, The cable connector characterized in that the engagement of the engaging portion of the pressing member is released from the engagement receiving portion of the cable inserted in the groove by the movement from the pressing posture to the pressing release posture. .