JPH0332074Y2 - - Google Patents

Description

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

[Prior art]

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. occurs. Therefore,
It was necessary to incorporate the electrical connection device into various devices in consideration of the mounting condition of the flat cable so that the movable body could be rotated in different directions at approximately the same angle with respect to the fixed body.

[Problem that the invention attempts to solve]

By the way, although it is conceivable to attach a display to the above-mentioned conventional electrical connection device so that it can be visually determined that the fixed body and the movable body are incorporated in the proper position, even if such a display is attached, However, due to the worker's carelessness, the assembly may proceed to the next assembly process without being assembled correctly, resulting in the problem that the assembly is found to be defective only after assembly is completed.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an electrical connection device that provides a warning in the event of assembly failure so that assembly can be performed reliably and accurately.

[Means to resolve the problem]

In order to achieve the above object, the present invention provides a fixed body, a movable body rotatably attached to the fixed body, and a flat body for electrically connecting the fixed body and the movable body. In the electrical connection device, the fixed body is attached to a stator member of a device main body, and the movable body is connected to a rotor member of the device main body, the fixed body and the movable body being connected to a rotor member of the device main body. A gear member pivotally supported on one of the gear members, and a pair of operating pawls provided on the other and removable from the teeth of the gear member, to ensure proper positioning between the fixed body and the movable body. A positioning member that performs an alignment operation is provided, and a cam member is provided on the gear member, and a detection arm that is driven by rotation of the cam member is disposed near the cam member, and the detection arm is configured to perform an alignment operation. The device is characterized in that a warning means that is selectively activated depending on the position of the arm is provided on the rotor member of the main body of the device.

[Effect]

That is, in the present invention, even if the fixed body and the movable body are not assembled accurately and the operator overlooks this, the positioning member activates the warning means via the cam member and the detection arm. , it is possible to notify of assembly defects.

〔Example〕

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. is exposed to form a connecting portion 8 that is 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 movable 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, for example, 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 this adhesive, the locking plate 9 and The block body 14 is fixed to the frame body 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, as shown in FIG. 2, the front wall of the enlarged diameter portion 1a of the movable body 1 is provided with a first gear 17 having tooth portions 17a that are angularly offset by 90° from each other. A second gear 18 and a polymer body 19 are provided to be rotatable about a support shaft 20, and a second gear 18 is formed with a tooth portion 18a having an angular deviation of 45 degrees with respect to the tooth portion 17a. In this embodiment, a triangular position display section 21 is formed on the surface of the first gear 17. In this embodiment, a triangular position display section 22 is formed on the surface of a protruding wall 10b formed on the fixed body 10 facing the position display section 21.
The polymer 19 and the position display parts 21 and 22 constitute a positioning member.

A pair of operating pawls 23 are provided on the protruding wall 10b of the fixed body 10 to engage with the first gear 17 and rotate the polymer body 19. Further, the first gear 17 is inserted into the fixed body 10 from the notch 1c formed in the movable body 1.
It extends outwardly so as to be slidable on the upper side wall 10c. On the other hand, the second gear 18 has a tooth portion 18a whose tip end is slidable on the inner circumferential wall 10d of the fixed body 10, and the fixed body 10 is provided with the operating pawl 23.
When the tooth portion 18a reaches the position shown in FIG. 1, it becomes possible for the tooth portion 18a to enter between the actuating pawls 20, and the tooth portion 18a is no longer in contact with the inner circumferential wall 10d, so that the tooth portion 18a can rotate.

Further, a cam member 24 is provided below the second gear 18 of the polymer 19 and rotates together with the polymer 19. A detection arm 25 is provided on the movable body 1 opposite to the cam member 24 . This detection arm 2
5 has a protruding pin 27 inserted into the arcuate groove 26 formed in the movable body 1 at the left end, a receiving recess 28 at the right end, and a center A raised portion 25a that contacts the cam member 24 is formed on the side portion, and the raised portion 25a and the cam member 24 are always connected by a leaf spring 29.

To explain the alignment between the movable body 1 and the fixed body 10 described above, the flat cable 3 is connected to the side of the small diameter portion 1b of the movable body and the central space 11 of the fixed body 10.
It is stored in a wound state between the inner wall of the
When the flat cable 3 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 first gear 17 and the position display section 22 of the fixed body 10 are displayed. Match.
In this state, the movable body 1 is assembled with the fixed body 10 at a proper position.

Therefore, the movable body 1 assembled in this way
When attaching the movable body 10 and the movable body 10 to the main body of the device (described later), 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 The movable body 1 rotates relative to the fixed body 10 in response to the actuation force of the cable 3. At this time, the operating pawl 23 of the fixed body 10 and the tooth portion 17a of the first gear 17 mesh with each other, and the first gear 17 rotates in accordance with the rotation of the movable body 1, and the positions of the first gear 17 and the movable body 1 are Display parts 21 and 22 are shifted. Therefore, by correcting the misalignment of the position display parts 21 and 22 and then attaching the assembly of the movable body 1 and the fixed body 10 to the main body of the device, the displacement of the flat cable 3 can cause the movable body 1 to shift. 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 are differences in rotation ranges in different directions.

That is, as shown in FIGS. 3a to 3d, when the operating body 1 normally operates with respect to the fixed body 10 (FIG. 3a), the two teeth 1 of the second gear 18
Since the tip of 8a is sliding on the inner circumferential wall 10d of the fixed body 10, the polymer 19 remains as it is and the fixed body 1
0 and rotates together with the movable body 1 in a sliding manner. However, when the movable body 1 rotates clockwise from FIG. 3b to FIG. 3c to the neutral position of the movable body 1,
The tooth portion 17a of the first gear 17 comes into contact with one of the operating claws 23 of the fixed body 10, and at this time, the tooth portion 18a of the second gear 18 can enter between the operating claws 23, so that the polymer 19 rotates. becomes possible. In the neutral position of the movable body 1 as shown in FIG. If the movable body 1 is further rotated clockwise as shown in FIG. It can be seen that 1 has shifted from the neutral position. When the movable body 1 rotates counterclockwise, an operation that is exactly opposite to that described above for the clockwise rotation occurs.

In this way, the assembly 30 of the movable body 1 and the fixed body 10 is connected to a steering wheel 31 and a steering shaft 32 of an automobile, for example, as shown in FIG. However, the user may forget to check whether the position display sections 21 and 22 match. Moreover, it is extremely unreasonable to modify the assembly after completing the assembly with incorrect assembly.

Here, the operation of the warning means in the event of assembly failure in this embodiment will be explained. That is, a detection switch 33 is provided protruding from the bottom surface of the steering wheel 31 for operating warning means such as a sounding body and a display device (not shown). When the movable body 1 is set in the neutral position in the assembly 30, the large diameter portion 24a of the cam member 24 of the polymer body 19 is connected to the raised portion 2 of the detection arm 25.
5a against the elastic force of the leaf spring 29 (the fourth
6), the detection arm 25 is rotated counterclockwise about the pin 27 by the pressure of the cam member 24. Due to this rotation, the receiving recess 28 of the detection arm 25 escapes upward, so the detection switch 33
The detection switch 33 is turned off and the warning means is not activated.

By the way, when the movable body 1 is set in a state other than the neutral position in the assembly 30, the raised portion 25a of the detection arm 25 is applied to the small diameter portion 24b of the cam member 24 of the polymer body 19 due to the elastic force of the leaf spring 29. As a result, the detection arm 25 becomes in a horizontal state (the state shown in FIG. 7). When the steering wheel 31 is connected in this state, the detection switch 33 enters the receiving recess 28 of the detection arm 25, and the detection switch 33 is turned on at the upper surface of the receiving recess 28, and the warning means is activated, indicating that the assembly 30 is set incorrectly. It is possible to notify that the steering wheel 31 is connected to the steering wheel 31 in this state.

Furthermore, when the aforementioned assembly 30 is in the correctly set state, the detection switch 33 comes into contact with the side a of the receiving recess 28 of the detection arm 25, so once the steering wheel 31 is set, the movable body 1
Even if the cam member 24 rotates due to the rotation, the detection arm 25 is regulated by the detection switch 33 and does not rotate, so that the movement of the polymer 19 is not affected.

Furthermore, when the detection arm 25 is connected in the improperly set state described above, the detection switch 33 presses the receiving recess 28 of the detection arm 25, so the detection arm 25
Since the detection switch 33 on the right end is the center, and the pin 27 on the left end is guided by the arcuate groove 26 and is free, it can rotate clockwise as shown in FIG. 7, and the cam member 24 rotates. This prevents damage to the detection arm 25 due to the pressing force applied to the detection arm 25 due to the rotation of the cam member 24.

[Effect of idea]

As explained above, in the present invention, if the fixed body and the movable body are not assembled accurately, the positioning member activates the warning means via the cam member and the detection arm, so it is not possible to immediately determine whether the assembly is defective. , it is possible to provide an electrical connection device that can improve workability.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is an exploded perspective view, FIG. 2 is a plan view showing a polymer of the alignment member, FIG. 3a, FIG. 3b, FIG. 3c, and FIG. Figure 3d
is a plan view showing the operating state of the polymer, FIG. 4 is a plan view showing the main parts, FIG. 5 is a perspective view for explaining the assembled state, and FIGS. 6 and 7 are states in which the warning means is activated. FIG. 1...Movable body, 3...Flat cable, 10
... Fixed body, 19, 21, 22 ... Positioning member, 24 ... Cam member, 25 ... Detection arm.

Claims (1)

[Scope of utility model registration request] The device includes a fixed body, a movable body rotatably attached to the fixed body, and a flat cable for electrically connecting the fixed body and the movable body, and the fixed body is connected to the main body of the device. In an electrical connection device that is attached to a stator member and that connects the movable body to a rotor member of the device main body, a gear member that is pivotally supported by either the fixed body or the movable body; , a pair of actuating pawls provided on the other of the gear members and removable from the teeth of the gear member constitute an alignment member for properly aligning the fixed body and the movable body; A cam member is provided on the gear member, and a detection arm that is driven by rotation of the cam member is provided near the cam member, and is selectively operated depending on the position of the detection arm. An electrical connection device characterized in that a warning means is provided on a rotor member of the device main body.