JP5007195B2 - Ignition operation device - Google Patents

Description

  The present invention relates to an ignition operating device.

  As an ignition operation device having an interlock for associating a shift position with respect to an automatic transmission and a rotation operation to an ignition switch, a device described in Patent Document 1 is known. In this conventional example, the ignition operation device is formed by fixing an ignition switch, which is rotated between a lock position and a start position, to one end of the housing.

  The housing accommodates a cylinder lock that can be rotated by a genuine unlocking key and a rotor that rotates following the rotation of the cylinder lock. A lock lever (interlock piece) is provided in the rotation range of the rotor. Installed. The interlock piece is driven in conjunction with the operation of the select lever of the automatic transmission, and is located at the interlock position when the shift position is the unlock position and at the interlock release position when the shift position is the lock position.

In the interlock position, the interlock piece closes the return path from the rotor non-lock position to the lock position and restricts the rotation operation to the lock position, removes the unlock key at a position other than the parking position, and enters the steering lock state. And the end of power supply to accessories.
Japanese Utility Model Publication No. 1-93161

  However, the conventional example described above has the following problems. That is, since the rotor connected to the ignition switch that stops moderation at a predetermined rotational position has a certain rotational sliding resistance, when the rotor is rotationally driven to the interlock position and the rotor contacts the interlock piece, The rotor is held in the contact position even after the operating force is released.

  When the rotor is in contact with the interlock piece, sliding resistance is generated on the sliding contact surface between the rotor and the interlock piece, or when one end is pushed by the rotor, the contact pressure between the interlock and the guide wall surface is increased. There is a problem that the interlock release operation force in the state becomes high.

  The present invention has been made to solve the above-described drawbacks, and an object of the present invention is to provide an ignition operation device that can reduce the operation force of releasing the interlock piece in the interlock state.

  The ignition operation device is configured to rotate the ignition switch 2 between the lock position and the start position via the transmission rod 4 by operating the rotation operation unit 3 exposed at the driver's seat of the automobile. In conjunction with the rotation of the steering wheel, the locking rod to the steering shaft can be advanced and retracted, and the steering lock can be configured to restrict the rotation operation to the steering at the lock position.

  The interlock piece 7 is driven between the interlock position and the interlock release position in conjunction with the operation of the select lever 6 of the automatic transmission 5. The interlock piece 7 that moves to the interlock position when it comes out of the parking position prevents the ignition switch 2 from returning to the lock position when the select lever 6 is in a position other than the parking position.

  The interlock piece 7 is covered by a suitable actuator 19 driven as a component of a cable stretched between the select lever 6 or the operation of the select lever 6 in order to transmit the operating force of the select lever 6. Configured as a drive component.

  When the transmission rod 4 is driven to the interlock operating position and comes into contact with the interlock piece 7 and then the operating force is released, the biasing force applying means 8 starts the contact portion with the interlock piece 7 at an appropriate angle. An urging force that retracts to the position side is applied to the transmission rod 4. In the present invention in which the urging force applying means 8 is provided, even when the transmission lever 4 is operated to the locked position in the non-parking position and the select lever 6 is operated to the parking position side while being in the interlocked state, The contact pressure with the piece 7 does not increase, and a smooth operation is guaranteed.

  As the position where the interlock is operated, an appropriate position between the ACC position and the lock position is selected. However, when the position is set to the ACC position where power supply to the accessories is guaranteed, the warning effect to the driver is enhanced. Generally, in the ACC position, an appropriate moderation mechanism is provided to provide the operator with a feeling of moderation or a click, and the sliding resistance of the transmission rod 4 increases at a transitional position before and after the moderation stop position. There is a case. In the present invention including the urging force applying means 8, the operating force of the interlock piece 7 is not increased even in such a case.

  The urging force applying means 8 can move in the longitudinal direction of the transmission rod 4, and can be configured with a simple structure by providing a movable portion 10 that is urged forward or backward by a compression spring 9. In this case, the urging force applying means 8 is composed of a cam bearing surface 11 formed at one of the pressure contact portions between the movable portion 10 and the frame 1 and a cam protrusion 12 that is in pressure contact with the cam support surface 11. The

  When the transmission rod 4 is rotated in the interlock operation state and the transmission rod 4 comes into contact with the interlock piece 7 and then the operating force is released, the cam projection 12 is brought into contact with the cam bearing surface 11 by the restoring force of the compression spring 9. Press contact. When the cam bearing surface 11 has the inclined surface 20 that generates the rotational component force toward the start position on the movable portion 10 at the contact position with the interlock piece 7, the transmission rod 4 rotates in the same direction. Thus, the pressure contact state with the interlock piece 7 is eliminated.

  According to the present invention, the unlocking operation force of the interlock piece in the interlock state can be reduced.

  1 and 2 show an embodiment of the present invention configured as a steering lock device. The steering lock device includes a frame 1, a transmission rod 4 that is housed in the frame 1, includes a knob-like rotation operation unit 3 at the front end and is long in the front and rear directions, and an ignition switch 2 that is fixed to the rear end of the frame 1. Have.

  As shown in FIG. 2, the ignition switch 2 includes a rotating plate 21 and a terminal holding portion 22 to which a short-circuit terminal is fixed. The rear end of the transmission rod 4 is connected to the rotary plate 21. When the rotary plate 21 is rotated between four positions of lock, ACC, ON, and start as shown in FIG. The terminal on the terminal holding part 22 is short-circuited by the short-circuit terminal, and the corresponding circuit is closed. The ignition switch 2 can be moderated and stopped at the four positions by a click ball 21b urged in the outer peripheral direction by a spring 21a.

  The transmission rod 4 is disposed at the rear end portion of the frame 1, and the rear end is connected to the ignition switch 2 and the rotator 23 is connected to the front of the rotator 23, and moves in the longitudinal direction (front-rear direction) relative to the frame 1 A lock body 24 is arranged so as to intersect with the rotator 23. As shown in FIG. 2, the lock body 24 has a lock position in which one end is fitted into the locking recess 25 a of the steering shaft 25 to restrict the operation to the steering, and the locking recess 25 a moves upward from this position. And is unlocked by the spring 26 and is urged toward the lock position.

  The rotator 23 is provided with a cam portion 23 a that faces the cam receiving portion 24 a formed on the lock body 24. When the transmission rod 4 is rotated from the lock position shown in FIG. 2 toward the start position, the cam receiving portion 24a of the lock body 24 is pushed up in the unlocking direction by the cam portion 23a at an appropriate rotation position, and the steering operation is performed. It becomes possible.

  The movable part 10 has a plug 17 connected to the rotation operation part 3 at the front end and a sleeve 15 into which the plug 17 is inserted, and a plug fitting in which the rear end of the plug 17 is opened in front of the rotator 23. It fits into the hole 23b. The plug 17 and the rotator 23 are connected in the rotational direction in the state of being fitted into the plug fitting hole 23b, and the plug 17 has a degree of freedom of forward movement and is held in the plug fitting hole 23b. It is urged forward by the compression spring 9.

  The plug 17 includes a plurality of tumblers 17a to form a cylinder lock with the sleeve 15, and the sleeve 15 is inserted by inserting a genuine unlocking key 16 as shown in FIG. Can be rotated.

  The sleeve 15 is inserted into the frame 1 so as to freely rotate. Whether the sleeve 15 is allowed to idle in the frame 1 is controlled by the sleeve block piece 14, and the sleeve block piece 14 is driven by a solenoid (actuator 19) fixed to the outer wall of the frame 1 to be in the idling restriction position and the restriction release position. Move between. As shown in FIG. 4, the sleeve block piece 14 enters the locking slit 15a formed in the sleeve 15 to restrict the idling of the sleeve 15 as shown in FIG. In the release position, it can be disengaged from the locking slit 15a and idled.

  As will be described later, the rotating operation of the movable portion 10 is restricted by fitting the cam protrusion 12 formed at the front end of the plug 17 in the lock position into the lock position restricting recess 13 on the frame 1 side. The operation is performed after the rotation operation unit 3 is once pushed backward. As shown in FIGS. 2 and 3, the pushing operation to the movable portion 10, that is, the transmission rod 4, is detected by the pushing detection switch 27a of the switch box 27 fixed to the frame 1, and the detection result is mounted on the vehicle body. It is transmitted to the control device 18. FIG. 2 shows the state of the push-in detection switch 27a before the push-in operation of the movable part 10, and FIG. Show.

  Under the above configuration, when the transmission rod 4 is in the locked position, the sleeve block piece 14 is stopped at the idling restriction position. From this state, when the control device 18 detects the operation of the push-in detection switch 27a, the driver possesses it. A request radio signal is output to the portable device to wait for a response from the portable device. When the control unit receives the response signal from the portable device within a predetermined time and authentication for the authentication code included in the response signal is established, the control unit instructs the solenoid 19 to perform the deregulation drive, and the sleeve block piece 14 is deregulated. Move to position.

  The sleeve 15 and the plug 17 are connected to each other in a rotational direction via a tumbler 17a without inserting the unlocking key 16 into the plug 17, and when a rotational operation force is applied to the rotational operation unit 3, the plug 17 and the sleeve 15 Rotate together. As the plug 17 rotates, the rotator 23 connected to the plug 17 rotates to release the restraint of the steering shaft 25 by the lock body 24 and to operate the ignition switch 2.

  On the other hand, when the genuine unlocking key 16 is inserted into the plug 17, the plug 17 can be rotated with respect to the sleeve 15 even if the sleeve 15 cannot rotate with respect to the frame 1. Can be rotated. As a result, even when the driver does not have a portable device or when the portable device or the like is out of order, an operation with the genuine unlock key 16 can be performed.

  In order to detect insertion of the unlocking key 16, a key detection switch 32 is disposed in the plug 17, and in order to detect rotation of the plug 17, a plug rotation detection switch 27 b is disposed in the switch box 27.

  Further, as shown in FIGS. 1 and 6, the steering lock is connected to a select lever 6 for operating the automatic transmission 5 via a cable 28. The interlock piece 7 is fixed to the tip of the cable 28 and is held along the guide 31 so as to freely advance and retract. When the select lever 6 is in the parking position, the interlock piece 7 is held at the interlock release position where the tip is retracted out of the frame 1 as shown in FIG. Then, it moves into the frame 1 and moves to the interlock position shown in FIG.

  The rotator 23 is formed with a locking portion 23c for locking the interlock piece 7 at the interlock position. In this embodiment, the locking portion 23c is set to contact the interlock piece 7 at the ACC position on the way to return from the start position direction to the lock position. FIG. 6C shows a state in which the locking portion 23c is in contact with the interlock piece 7 at the ACC position and the rotation operation of the transmission rod 4 to the lock position side is restricted.

  Further, the steering lock has an urging force applying means 8. As shown in FIGS. 7 and 8, the urging force applying means 8 includes a cam bearing surface 11 formed on a cap member 29 that closes the front end of the frame 1 and restricts the plug 17 from protruding forward, and the plug 17. And a cam projection 12 formed at the front end of the cam.

  The cam support surface 11 is an uneven surface formed on the back surface of the cap member 29 and formed along the rotation locus of the cam projection 12, and as shown in a developed view in FIG. A bulge 30 is provided between the position and the rear. An inclined surface 20 is formed at the ACC position side end of the bulging portion 30, and a lock position restricting recess 13 into which the cam protrusion 12 is fitted is formed at the lock position.

  Therefore, in this embodiment, when the plug 17 is in the lock position, the cam projection 12 is fitted into the lock position restricting recess 13 on the cap member 29 side by the urging force of the compression spring 9 acting on the plug 17 (FIG. 8). (Refer to (a) and (b)). In this state, the rotation operation to the plug 17 is prohibited, and the rotation operation to the ACC side is performed once against the reaction force of the compression spring 9 by pushing the rotation operation portion 3, that is, the plug 17 and the cam projection 12. This is performed after the fitting with the lock position restricting recess 13 is released.

  Thereafter, when the rotation operation unit 3 is rotated to the lock position side while the interlock piece 7 is in the interlock position, the locking portion 23c comes into contact with the interlock piece 7 at the ACC position. Thereafter, when the rotation operation unit 3 is further rotated to the lock position side, as shown in FIGS. 8C and 8D, it is slightly tilted to the lock position side while absorbing the sliding clearance of the interlock piece 7 and the like. Locked in the position.

  When the operating force is released in this state, the plug 17 is pushed forward by the restoring force of the compression spring 9, and the cam protrusion 12 of the plug 17 is placed on the slope of the cam bearing surface 11 as shown in FIG. Press contact. As a result, a force that slides down the slope is generated in the cam projection 12, and the plug 17, that is, the movable portion 10 is moved to the ACC position as shown in FIGS. 8E and 8F by this component force. By the movement of the movable part 10 to the ACC position, the pressure contact force of the engaging part 23c to the interlock piece 7 is released, and thereafter the smooth operation of the interlock piece 7 is guaranteed.

It is a front view showing the present invention. FIG. 2 is a cross-sectional view taken along line 2A-2A in FIG. It is a figure which shows a movable part, (a) is a figure which shows the state which pushed in the movable part, without using an unlocking key, (b) is a figure which shows a locking position, (b) is an unlocking key inserted. It is a figure which shows the state which pushed in the movable part. It is a figure which shows a sleeve block piece, (a) is sectional drawing which shows the state which controlled rotation of the sleeve, (b) is the 4B-4B sectional view taken on the line of (a). FIGS. 5A and 5B are cross-sectional views illustrating a state in which the sleeve rotation restriction by the sleeve block piece is released, in which FIG. 4A corresponds to FIG. 4A and FIG. 4B corresponds to FIG. 6A and 6B are cross-sectional views showing the interlock, FIG. 6B is a cross-sectional view of the interlock piece in the parking position, and FIG. 6C is a cross-sectional view taken along the line 6B-6B of FIG. It is sectional drawing which shows the state contact | abutted to. It is a figure which shows an urging | biasing force provision means, (a) is an exploded side view which shows the relationship between a plug and a cap member, (b) is a 7B direction arrow view of (a), (c) is a development view of a cam support surface. FIG. It is a figure which shows operation | movement of an urging | biasing force provision means, (a) is a figure which shows a locked position, (b) is a figure which developed (a) on the expanded view of a cam support surface, (c) is an interlock position. (D) is a diagram corresponding to (b) at the time of overrun, and (e) is a view corresponding to (b) at the time of overrun. (F) is a figure corresponding to (b) at the time of overrun cancellation.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Frame 2 Ignition switch 3 Rotation operation part 4 Transmission rod 5 Automatic transmission 6 Select lever 7 Interlock piece 8 Energizing force giving means 9 Compression spring 10 Movable part 11 Cam bearing surface 12 Cam protrusion 13 Lock position control recessed part 14 Sleeve block piece 15 Sleeve 16 Unlock Key 17 Plug 18 Control Device 19 Actuator

Claims (5)

An ignition switch fixed to the frame and driven to rotate between a lock position and a start position;
A transmission rod which is accommodated in the frame and transmits the rotation operation to the rotation operation unit disposed at one end to the ignition switch;
An interlock that is driven back and forth between the interlock position and the interlock release position in conjunction with the operation of the automatic transmission select lever, and that blocks the rotation path from the unlocked position to the locked position of the ignition switch at the interlock position. A piece and
An ignition operating device in which the urging force is applied to the transmission rod by an urging force application means for appropriately retracting the contact portion with the interlock piece to the start position side at the rotation restricted position by the interlock piece.   The ignition operation device according to claim 1, wherein a retracted position by the biasing force applying means coincides with an ACC position following the lock position. It is movable in the longitudinal direction of the transmission rod, and has a movable part that is urged forward or backward by a compression spring,
The biasing force applying means is
The ignition operating device according to claim 1 or 2, comprising a cam support surface formed at one of the press contact portions between the movable portion and the frame, and a cam protrusion pressed against the cam support surface. The movable portion is provided with the rotation operation portion at the front end and is biased toward the front of the frame,
The ignition operation device according to claim 3, wherein the cam support surface is provided with a lock position restricting recess for restricting the rotation operation to the unlocked position by fitting the cam protrusion at the lock position. The movable part is
A sleeve that is idled by a sleeve block piece and inserted into the frame, and is free to idle with respect to the frame in an idle rotation released state;
The rotation operation unit is connected to the front end and inserted into the sleeve, and has a plug that can be rotated with respect to the sleeve by a genuine unlocking key,
The sleeve block piece is driven between an idling restriction position and a restriction release position by an actuator that is driven and controlled by a controller.
5. The ignition operation device according to claim 4, wherein an operation of the unlocking key inserted into the plug and the transmission rod is enabled by control from the control device.

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