JPH0336065Y2 - - 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]

However, in the above-mentioned conventional electrical connection device, it is conceivable to attach a display that can visually indicate that the fixed body and the movable body are installed in the proper position, but 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.

Therefore, the object of the present invention is to provide an electrical connection device that cannot be assembled into a main body of a device such as a steering device unless the position is accurately aligned, thereby making it possible for a worker to recognize assembly defects. The goal is to provide the following.

[Means for solving problems]

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. The apparatus is characterized in that it constitutes an alignment member that performs an alignment operation, and is provided at the rotation center position of the gear member with an irregularly shaped protrusion that can be fitted into a non-circular irregularly shaped receiving part formed on the rotor member of the device main body. do.

[Effect]

That is, in the present invention, if the fixed body and the movable body are not set correctly, the positioning member moves the irregularly shaped protrusion so that it cannot be inserted into the irregularly shaped receptacle of the connected device body, and the electrical By making the connection between the connecting device and the entire device impossible, it is possible to notify the operator that the fixed body and movable body are improperly set.

〔Example〕

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

As shown in FIG. 1, a small-diameter portion 1b is provided at the bottom of a cylindrical movable body 1 having an enlarged-diameter portion 1a in which various electric elements are disposed at the top, and a partition wall 2 is hanging 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 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, 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. and a second tooth portion 18a formed with a 45° angle deviation with respect to the tooth portion 17a.
A polymer 19 with a gear 18 is rotatably mounted on a support shaft 20. And on the surface of the first gear 17,
In this embodiment, a triangular position display section 21 is formed. The fixed body 1 faces the position display section 21.
In this embodiment, a triangular position display section 22 is formed on the surface of the protruding wall 10b formed at 0.0. Therefore, 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 extends outward from a notch 1c formed in the movable body 1 so as to be able to slide on the upper wall 10c of the fixed body 10. On the other hand, the second gear 18 has a tip end of the gear 18a that is slidable on the inner circumferential wall 10d of the fixed body 10, and the fixed body 1 on which the operating pawl 23 is provided.
When the tooth portion 18a reaches the position 0, the tooth portion 18a engages the operating pawl 23.
It is possible to enter between the inner circumferential wall 10d and rotate without contacting the inner circumferential wall 10d.

Further, the support shaft 20 is extended above the first gear 17 of the polymer body 19, and in this embodiment, the fan-shaped irregular projection 24 is fixed. As shown in FIG.
It has the same shape as the irregularly shaped receiving part formed in a part of the device main body (described later) to which 5 is to be connected.

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 peripheral wall of the
When the flat cable 3 is in a state where it does not 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 and the fixed body 10 are assembled in proper positions.

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 (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, during normal operation of the operating body 1 with respect to the fixed body 10 (FIG. 5a), the two teeth 18 of the second gear 18
Since the tip a is sliding on the inner circumferential wall 10d of the fixed body 10, the polymer 19 remains as it is and the fixed body 10
The movable body 1 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 first
The tooth portion 17a of the gear 17 is the operating pawl 23 of the fixed body 10.
At this time, the tooth portion 18 of the second gear 18
a can enter between the actuating claws 23, and the polymer 19 becomes rotatable. and the third
At the neutral position of the movable body 1 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 in the counterclockwise direction, an operation that is completely opposite to that described above for the clockwise rotation occurs.

In this way, the assembly 25 of the movable body 1 and the fixed body 10 is connected, for example, to the steering wheel 26 and steering shaft 27 of an automobile as shown in FIG. Inside the steering wheel 26, an irregularly shaped receiving part 28 into which the irregularly shaped protrusion 24 can be inserted is bored, and this irregularly shaped receiving part 28
The shape of the irregularly shaped protrusion 24 is the same as that of the irregularly shaped projection 24, and the irregularly shaped projection 24 is connected to the irregularly shaped receiving part 28 as shown in FIG. It is designed so that it can be inserted into.

Therefore, when the movable body 1 is set in a state other than the neutral position in the assembly 25 and is attempted to be connected to the steering wheel 26, the irregularly shaped protrusion 24 rotates together with the polymer body 19 out of the proper set position. Therefore, an angular deviation occurs between the irregularly shaped projection 24 and the irregularly shaped receiving part 28, and the irregularly shaped projection 24 cannot enter into the irregularly shaped receiving part 28, as shown in FIG. 5B. For this reason, the assembly 25 cannot be assembled into the steering wheel 26 to the connecting position, and the operator can therefore know that the assembly 25 has been connected to the steering wheel 26 in a poorly set state.

[Effect of idea]

As explained above, in the present invention, if the fixed body and the movable body are not assembled accurately, they cannot be connected to the main body of the device to be connected, and this makes it possible to immediately know that the assembly is defective. An electrical connection device that can improve workability can be provided.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which 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 perspective view for explaining the assembled state, and FIGS. 5a and 5b are plan views showing the positional relationship between the irregularly shaped projection and the irregularly shaped receiver. be. 1...Movable body, 3...Flat cable, 10
... Fixed body, 19, 21, 22 ... Alignment member, 24 ... Irregular projection, 26, 27 ... Device body, 28 ... Irregular receiving part.

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; An electrical connection device characterized in that an irregularly shaped protrusion that can be fitted into a non-circular irregularly shaped receiving portion formed on a rotor member of the device main body is provided at a rotation center position of a gear member.