JPH0216908Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention provides a steering device having a slip spring means provided near the steering wheel for transmitting an operating signal from a switch or the like to a load device. This invention relates to a positioning device.

Conventionally, in a steering device having this type of slip spring means, there is a switch on the steering wheel, and in order to connect a lead wire from the switch to the steering column side via the slip spring means, a wire is connected to the bottom surface of the steering wheel. A connector is fixed to the rotating side of the slip ring means. On the other hand, since the steering wheel is assembled based on the orientation of the tires (straight travel direction), the connector also assumes a predetermined position during assembly. At this time, the connector on the slip ring means side needs to be in a position corresponding to the connector on the steering wheel side, but there is no device that locks the position of the slip ring means with respect to the direction of rotation of the steering wheel. .

For this reason, it is difficult to perform adjustment work to align the rotation side of the slip ring means with the steering wheel, and the assembly work is time-consuming, and the connection of the electric circuit also requires effort and time.

The present invention makes alignment easier by locking the rotating side position of the slip spring means until the steering wheel is installed, and this lock is released when the steering wheel is installed. remove the
It is an object of the present invention to provide a steering mounting positioning device that does not require adjustment work.

An embodiment of the present invention will now be described with reference to FIGS. 1 to 3, in which the present invention is applied to, for example, a steering device having a slip ring means integrally incorporating a cancel means of a direction indicating device.

1a and 1b are contact members made of a conductive plate material, for example, a phosphor bronze plate; 2a and 2b are insulating members made of an insulating molding material, such as plastic; 3a and 3b
is a conductive elastic wire material, for example, a wire spring made of phosphor bronze, and the insulating members 2a and 2b have on one side,
A notch whose inner diameter matches the outer diameter of the contact members 1a, 1b, whose outer diameter matches the outer diameter of the protrusions 1a', 1b' of the contact members 1a, 1b, and into which the protrusions 1a', 1b' fit. Protruding rings 2a' and 2b' are provided.

Inside these rings 2a', 2b' are contact members 1a, 1b.
The rings 2a' and 2b' are fitted so that protrusions 1a' and 1b' are exposed on their outer peripheries from the notches of the rings 2a' and 2b'. Then, elastic wire rods 3a, 3 are attached to the circumferential surfaces of the rings 2a', 2b'.
A cancel means is constructed by arranging b so as to be in sliding contact with each other. That is, rings 2a', 2
When b' rotates, the tips of the elastic wires 3a, 3b alternately contact the projections 1a', 1b', so if it is detected which elastic wire 3a, 3b has contacted first, it is possible to Since the direction of rotation of the elastic wires 3a and 2b is known, when the direction indicator is operated by a switch (not shown), the reverse rotation of the steering wheel can be determined based on the outputs from the elastic wires 3a and 3b. It is possible to cancel the direction indicating device.

4 is a contact member made of the same material as the contact member 1a and whose outer diameter is the same as the outer diameter of the protruding piece 1a'; 5 is a spacer made of the same material as the insulating member 2a; 6 is a spacer made of the same material as the insulating member 2a; 7 is a flange body having screw holes 7a, and 8 is a base.

A mounting plate 6 is placed in contact with one surface of the insulating member 2a, and contact members 1a and 1b are housed between the insulating members 2a and 2b and between the insulating member 2b and the insulating member 5, so that necessary circuits can be connected. The fitting portion 7 of the flange body 7 is formed by stacking the spacers 5 and the contact members 4 alternately by the number of
c, and attach the mounting plate 6 to the flange body 7 with screws 9.

The wire springs 3a, 3b, 3c are brought into contact with the outer peripheries of the rings 2a', 2b' and the contact member 4, and the wire springs 3a, 3b, 3c are inserted into the grooves 8a of the base 8, and the wire springs 3a are inserted into the base 8. , 3b, 3c are fixed, and the insulating members 2a, 2b and spacer 5 are loosely connected to the base 8. At this time, the support hole 8b of the base 8 is fitted into the bushing part 7b of the flange body 7, and the flange body 7, the insulating members 2a and 2b fixed thereto, the spacer 5, and the contact member 4 are free inside the base 8. The wire spring 3 is rotated and fixed to the base 8 as described above.
a, 3b, 3c are rings 2a', 2b', contact member 4
Rub the top.

Lead wires 10 are soldered to the wire springs 3a, 3b, and 3c, and connectors 11 are attached to the ends of the wire springs 3a, 3b, and 3c so that they can be connected to required circuits and power sources.

The contact members 1a, 1b, 4 are provided with bent protrusions 1a'', 1b'', 4a protruding from their inner circumferences, and these are passed through the cut grooves 7d of the flange body 7 to provide a connector on the back surface of the flange body 7. They are inserted into the case part 7e and connected to each other.

The mounting portion 8c of the base 8 is screwed to the steering column 12, and its protrusion 8d is inserted into a hole in the steering column 12 to prevent rotation.

The bushing part 7b of the flange body 7 has a key 7f protruding from its inner surface, and the bushing body 14, which is inserted into the bushing part 7b and fitted into the steering shaft 13, has a key groove 1 which fits into the key 7f.
4a, the bushing body 14 and the flange body 7 are interlocked in the rotational direction, but are movable in the axial direction.

Also, the button body 14 has this button body 14.
When pushed to the steering side the most, it engages with the protrusion 8e protruding from the base 8 and the bushing body 14
A locking groove 14b is provided to prevent rotation of the bushing body 14. A pressing spring 15 is installed between the bushing body 14 and the steering column 12.
toward the steering wheel 16,
As a result, the protruding piece 8e and the locking groove 14b are brought into engagement with each other, and as will be described later, the steering wheel 1
This meshing state is released when the bushing body 14 is pushed in the opposite direction due to the attachment of 6.

The steering boss plate 16a of the steering wheel 16 has a recess 16b into which protrusions 14c protruding at several points around the circumference of the bushing body 14 are fitted to rotate the bushing body 14 as the steering wheel 16 rotates, and a flange body 7. A hole 16c into which the connector case portion 7e protruding upward is fitted.
is provided.

As mentioned above, before the steering wheel 16 is installed, the bushing body 14 is pressed by the pressure spring 15 and the protruding piece 8e and the locking groove 14b are in a meshing relationship and do not rotate, so the steering wheel 16 is not rotated. If it is pushed into the steering shaft 13, the connector case portion 7e will fit into the hole 16.
c, and the protruding piece 14c and the recess 16b engage, and then the steering wheel is pressed against the pressure spring 15 until the tapered part 13a of the steering shaft 13 and the tapered part 16d of the steering wheel 16 come into contact with each other. 16, the bushing body 14 is also pushed in, and the protruding piece 8e and the locking groove 1 are pushed in.
4b is disengaged, and the steering wheel 1
6 and the bushing body 14 will now rotate together,
After that, both are fixed with nuts 17.

A steering pad 19 provided with a plurality of push button switches 18 is constructed by fitting the connector 20 connected to the push button switches 18 into the connector case portion 7e of the flange body 7 to connect the contact members 1a, 1b, 4 and the push button switches 18. After connecting the steering pad 19 to the center of the steering wheel 16.
It is used to fasten.

Since this embodiment has the above-described configuration, as the steering wheel 16 rotates, the insulating members 2a,
2b rotates, and wire springs 3a and 3b fixed to the base 8 slide on the rings 2a' and 2b'.
A part of these rings 2a', 2b' includes contact members 1a,
Since the protrusions 1a' and 1b' of 1b are exposed, the wire spring 3 is released by rotation of the steering wheel 16.
It comes into contact with a and 3b sequentially.

Similarly, the contact member 4 and wire spring 3 are always in sliding contact and conduction regardless of the rotation of the steering wheel 16, so one pair is used as a ground circuit, and the remaining pairs are connected to the push button switch 18. used as the required circuit.

As described above, the present invention presses a bush body which is interlocked with the slip spring means in the rotational direction toward the steering wheel side and engages with the steering column side, thereby maintaining the slip spring means in a state in which the vehicle is traveling straight. Since the steering wheel can be locked, if the steering wheel is attached to the steering shaft in the straight-ahead position, the bushing body and the steering wheel will automatically engage, and since the slip-spring means is locked, the connector of the electrical circuit can be locked. Connections can also be made easily.

Furthermore, in order to fix the steering wheel to the steering shaft, if the steering wheel is pushed toward the steering column against the bias of the bushing body, the engagement is disengaged and the lock is released, and the steering wheel and the slip ring means are rotated. This has the advantage that no special effort is required to release the lock.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a main part of an embodiment of the present invention, FIG. 2 is a vertical sectional view, and FIG. 3 is a horizontal sectional view. 1a, 1b, 4...Contact member, 3a, 3b, 3
c... Wire spring, 7... Flange body, 8... Base, 8e... Protruding piece, 13... Steering shaft, 14... Bush body, 14b... Locking groove, 1
5... Pressing spring, 16... Steering wheel.

Claims (1)

[Scope of claim for utility model registration] A steering pad that is fixed to the steering wheel and has a connector on the bottom side to which lead wires from a switch are connected, and a plurality of fixed contacts that are attached to a fixed member that is fixed to the steering column side. and a plurality of movable contact members that individually slide into contact with the fixed contact member in conjunction with rotation of the steering wheel, and a connector connected to the connector of the steering pad protrudes from the movable contact member side. a bushing body fitted into the steering shaft so as to be interlocked in the rotational direction and movable in the axial direction with respect to the movable contact member of the slipping ring means; the bushing body and the aforementioned bushing body; an engagement means formed on the fixed contact member, which engages when the bushing body is moving toward the steering wheel and releases the engagement when the bushing body moves to the opposite side; A steering mounting positioning device comprising: a biasing member that biases the steering member;