JPH0220794Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to an electrical connection device for electrically connecting a fixed body and a movable body using a flat cable.

[Background of the idea]

In the electrical connection device described above, the movable body is designed to rotate at the same angle in different directions with respect to the fixed body. If the flat cable is not installed so that it can rotate to the same extent in both directions when the steering wheel is in its neutral position, a large tension will be applied to the flat cable when the steering wheel is rotated in one direction, causing damage to the flat cable. There is. Therefore, it is necessary to incorporate the electrical connection device into various devices, taking into consideration the mounting condition of the flat cable so that the movable body can be rotated in different directions at approximately the same angle with respect to the fixed body.

However, conventionally, the above-mentioned electrical connection devices have not been equipped with a mechanism that automatically displays the installation status of the flat cable. It took time and effort to incorporate it into various devices.

[Purpose of invention]

SUMMARY OF THE INVENTION An object of the present invention is to solve the problems of the prior art described above and to provide an electrical connection device having a structure for displaying the installation state of a flat cable.

[Summary of the idea]

In order to achieve the above object, the present invention provides a rotatable gear on a movable body, a position display section is formed on the gear and the movable body, and a protrusion is provided on the fixed body so as to be able to mesh with the gear. It is characterized by

[Example of idea]

Hereinafter, one embodiment of the present invention will be described based on the drawings.

As shown in FIG. 1, a cylindrical movable body 1 has an enlarged-diameter portion 1a in which various electric elements are disposed at the upper part, and a small-diameter portion 1b is provided at the bottom of the movable body 1, and a partition wall 2 is provided with a gap between the small-diameter portion 1b and the movable body 1. It hangs down from the lower wall of the enlarged diameter portion 1a. Irregularly shaped through holes 4 and 5 are provided on the periphery of the enlarged diameter portion 1a, through which various terminals fixed to the ends of the flat cable 3, which will be described later, are inserted.
As is well known, the flat cable 3 has a flexible thin plate shape with a plurality of conductor foils embedded therein, and various terminals 6a and 6b, which will be described later, are fixed to one end, and the conductor foils are attached to the other end. A connecting portion 8 is formed by exposing the connecting portion 8 to be joined to the lead wire 7. A rubber locking plate 9 is fitted in the middle of the lead wire 7.

The movable body 1 is rotatably provided in a central space 11 of a cylindrical fixed body 10. This fixed body 10
A frame 12 having vertical openings is formed on the side of the frame 12, and a notch 10a is formed in the side wall of the fixed body 10 inside the frame 12 in the vertical direction. Furthermore, a protruding strip 12a is formed on the right side of the frame 12,
The locking plate 9 has a groove 9a formed in the locking plate 9.
The protruding strip 12a is inserted into the lower opening of the frame 12. and the protruding strip 12
A rubber block 14, which is fitted into the flat cable 3 and has a substantially triangular shape when viewed in cross section, is fitted into the substantially triangular space 13 formed by the side wall of the fixed body 10 and the flat cable 3. Then, with the locking plate 9 and the block body 14 disposed inside the frame body 12, an epoxy resin adhesive is poured into the frame body 12, and by curing the adhesive, the locking plate 9 and the block body 12 are fixed. The body 14 is fixed to the frame 12. By this fixing, the lead wire 7 and one end of the flat cable 3 are held by the fixed body 10.

One end of the flat cable 3 is held by the frame 12 of the fixed body 10 as described above, and the other end is inserted through the block body 14 through the notch 10a of the fixed body 10 to open the space 11 of the fixed body 10. It extends inward. On the other hand, at the other end of the flat cable 3, a terminal 6a fixed to the other end of the flat cable 3 is inserted into the through hole 5, and a lead wire 15 connected to an electrical component (not shown) is connected to the insulating tube 16. Through hole 5
It is electrically connected by appropriate means. On the other hand, the connector terminal 6b is inserted into the through hole 4 to establish an electrical connection with another conductor (not shown).

Further, a bottom wall portion 18 is formed in a recess 17 formed in a part of the surface wall of the enlarged diameter portion 1a of the movable body 1, and a support shaft 18a is erected from this bottom wall portion 18. A gear 19 is rotatably fitted loosely into this support shaft 18a, and a leaf spring 20 whose end is fixed to a receiving groove 17a formed on the side of the recess 17 is elastically attached to the side of the gear 19. The gear 1 is attached to the support shaft 18a to prevent the gear 19 from accidentally rotating due to vibration or the like.
The side wall of the center hole 19a of No. 9 is pressed against the side wall of the center hole 19a. Reference numeral 23 denotes a washer disposed at the upper end of the support shaft 18a, and the upper end of the support shaft 18a protruding from the washer 23 is thermally welded to connect the support shaft 18a and the gear 19. Become.

The gear 19 has a plurality of round teeth 19b formed on its circumferential side, and a triangular position indicator 21 in this embodiment on its front side. This position display section 21
In this embodiment, a circular position display section 22 is formed on the front wall of the enlarged diameter section 1a of the movable body 1, facing away from the movable body 1.

Moreover, on the inner wall of the central space 11 of the fixed body 10,
A protrusion 23 is formed, and this protrusion 23 and the gear 19
By meshing with the teeth 19b, the gear 19 is rotated by a certain angle.

Next, the operation of the above embodiment will be explained.

The flat cable 3 connects to the small diameter portion 1b of the movable body 1.
and the inner wall of the central space 11 of the fixed body 10. Then, when the flat cable 3 is in a state where it cannot prevent the movable body 1 from rotating at the same angle in different directions with respect to the fixed body 10, the position display section 21 of the gear 19 and the position display section 22 of the movable body 1 are aligned.

Therefore, the movable body 1 assembled in this way
When attaching the fixed body 10 and the fixed body 10 to the main body of the device (not shown), if the flat cable 3 moves inadvertently and the rotation angle of the movable body 1 differs in different rotation directions, the flat cable 3 may be moved. The movable body 1 rotates relative to the fixed body 10 in response to the actuation force of the power cable 3. At this time, the protrusion 23 of the fixed body 10 and the tooth portion 19a of the gear 19 mesh with each other, the gear 19 rotates according to the rotation of the movable body 1, and the gear 19 and the position display parts 21 and 22 of the movable body 1 are displaced. . Therefore, by correcting the misalignment of the position display parts 21 and 22 and then mounting the assembly of the movable body 1 and the fixed body 10 on the main body of the device, the deflection of the flat cable 3 can cause the movable body to
It is possible to prevent the assembly of the movable body 1 and the fixed body 10 from being attached to the main body of the device in a state where there is a difference in rotation range in different directions.

Furthermore, when the assembly of the movable body 1 and the fixed body 10 is attached to the main body of the device, the engagement between the gear 19 and the protrusion 23 is released, so that the gears 19 and the protrusions 23 are disengaged so that they are in opposing positions forming an angle of 180 degrees to each other, as shown in FIG. Make it. This prevents the gear 19 and the protrusion 23 from meshing many times due to the reciprocation of the movable body 1 when operating the main body of the device, thereby improving the durability of the gear 19 and the protrusion 23.

[Effect of idea]

As explained above, the present invention displays the attachment state of the flat cable to the fixed body or the movable body, so that the rotation range of the movable body relative to the fixed body is determined to be the same in different directions, and the operation of the movable body is controlled. A reliable electrical connection device can be provided.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which FIG. 1 is an overall exploded perspective view, FIG. 2 is a side sectional view showing the support part of the gear, and FIG. 3 is a perspective view showing the position display part of the movable body. FIG. 4 is a plan view of the gear, and FIG. 5 is an explanatory plan view showing the positional relationship between the gear and the protrusion. 1...Movable body, 3...Flat cable, 10
... Fixed body, 19 ... Gear, 21, 22 ... Position display section, 23 ... Protrusion.

Claims (1)

[Scope of utility model registration request] In an electrical connection device for electrically connecting a fixed body and a movable body rotatably installed relative to the fixed body via a flat cable, the movable body is rotatably provided with a gear, An electrical connection device characterized in that a position display portion is formed on the gear and the movable body, and a protrusion is provided on the fixed body so as to be able to mesh with the gear.