JP2020016441A - Actuator device for ignition operation - Google Patents

Abstract

To be able to operate reliably an ignition button by preventing an actuator 1 from separating from a panel surface due to reaction force of a brake operation actuator and the like.SOLUTION: A preload unit 2 is provided between an actuator 1 and a support arm 19. The preload unit 2 includes: a base plate 21 supported by the arm 19; a movable plate 22 that is slidably combined with the base plate 21 and supports the actuator 1; and a pair of springs 23 provided therebetween. The movable plate 22 is fixed to the base plate 21 by a lock mechanism while the spring 23 stores the spring force. If the lock mechanism is released after the actuator 1 is aligned, the actuator 1 is urged toward the panel surface, and maintains the state facing an ignition button.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an ignition operation actuator device used for performing a running test of a vehicle using, for example, a chassis dynamometer.

  For example, when performing a running test of a vehicle using a chassis dynamometer, the operation of an ignition switch of the vehicle is performed via an ignition operation actuator device. This ignition operation actuator device constitutes a part of a so-called drive robot (registered trademark, the same applies hereinafter) that performs various operations required for a driving test on behalf of a driver, and is fixed, for example, on a driver's seat. An actuator is supported at the tip of an arm extending from the drive robot unit toward the dash panel of the vehicle.

  Conventional ignition switches have often adopted a rotary-type configuration in which a plate-like key is inserted into a keyhole of a cylinder key and rotated to operate.In recent vehicles, a circular ignition button having a diameter of about 2 to 3 cm is pressed. 2. Description of the Related Art A push-type configuration in which an ignition switch is turned ON / OFF by operation is often employed.

  For a vehicle equipped with such a push-type ignition switch, it is needless to say that an ignition operation actuator device for pressing an ignition button is required.

  Patent Literature 1 discloses an ignition operation actuator device corresponding to a push-type ignition switch. In this ignition operating actuator device, the actuator supported at the tip of the arm has a hemispherical pressing member, and the pressing member moves in the projecting direction by the action of the cam, so that the ignition button of the vehicle is pressed. Is done. Further, in the actuator device of Patent Literature 1, a cylindrical guide member whose leading end abuts on a panel surface around an ignition button is provided around the pressing member. The guide member contacts the panel surface of the dash panel, thereby contributing to an improvement in the positional accuracy of the actuator supported in a cantilever manner at the tip of the arm.

Japanese Patent No. 55556847

  The ignition operation actuator device as described above, for example, during a running test using a chassis dynamometer, the position of the tip end of the actuator supported by the arm, that is, the pressing member is adjusted so as to appropriately face the ignition button of the vehicle, In particular, the position is adjusted so that the distal end of the cylindrical guide member contacts the dash panel.

  Ideally, if the pressing member moves forward and backward while maintaining the state in which the cylindrical guide member is in contact with the panel surface around the ignition button, the ignition button is reliably operated.

  However, in practice, when the actuator is operated, the guide member may be separated from the panel surface around the ignition button, and it may not be possible to normally press the ignition button.

  Particularly, in a vehicle in which it is necessary to depress the ignition button while depressing the brake pedal when turning on the ignition switch, the brake operation actuator which is a part of the drive robot simultaneously depresses the brake pedal. Therefore, for example, a phenomenon may occur in which the position of the drive robot unit fixed on the driver's seat is slightly displaced rearward due to the reaction force of the brake pedal. Therefore, the actuator device for ignition operation, which is supported by the drive robot fixing frame via the arm together with the drive robot unit, is displaced rearward, and the cylindrical guide member rises from the panel surface of the dash panel. Since the pressing member operates in the protruding direction in this state, the ignition button may not be correctly pressed.

The present invention has added a preload unit to solve such a problem. That is, the ignition operation actuator device according to the present invention
An actuator having a driving unit and a pressing member that is operated by the operation of the driving unit and that presses a push-type ignition button of the vehicle;
A preload unit that is supported via an arm in the vehicle interior and biases the actuator toward a vehicle-side panel on which the ignition button is arranged;
With
The preload unit,
A base member supported by the arm,
A movable member that is slidably combined with the base member along the biasing direction, and to which the actuator is attached;
A spring provided between the base member and the movable member to bias the movable member toward the vehicle-side panel;
It has.

  In this configuration, at the time of installation on the vehicle, the actuator of the preload unit is positioned with respect to the ignition button in a state in which the spring of the preload unit is appropriately bent, so that the actuator always faces the vehicle side panel with an appropriate urging force. It will be in a pressed state. For this reason, a position shift with respect to the ignition button hardly occurs, and a reliable pressing operation can be performed. For example, even in a case where the brake operation actuator is simultaneously operated and the arm is slightly retreated, the actuator is not separated from the vehicle side panel by the action of the preload unit, so that a reliable pressing operation can be achieved.

  It is desirable that the actuator be configured such that an appropriate portion other than the pressing member abuts on the vehicle-side panel, so that the vehicle-side panel supports the above-described biasing force. For example, it is desirable to provide a cylindrical member surrounding the pressing member at the distal end of the actuator, and the distal end of the cylindrical member is pressed against the vehicle side panel by the spring force of the spring.

  In a preferred aspect, the preload unit is configured to move the movable member to the base member at a position where the movable member is slid in a direction opposite to the biasing direction with respect to the base member so that the spring stores a spring force. And a releasable lock mechanism for locking the lock mechanism.

  With this configuration, the preload unit can be locked by using the lock mechanism in a state where a predetermined preload is set. Then, when the position of the actuator is adjusted with respect to the ignition button in the locked state and the lock is released, the actuator is pressed toward the vehicle side panel by the spring force of the spring. Therefore, position adjustment at the time of installation becomes easy.

  Preferably, the preload unit includes a spring guide bolt fixed to the movable member or the base member, and a coil spring is fitted and held on an outer periphery of the spring guide bolt. With this configuration, the coil spring that is relatively long is stably held.

  In one specific mode, both ends of the spring guide bolt are supported by first and second spring support portions provided on one of the movable member or the base member, and the movable member or the The spring guide bolt slidably passes through a through hole of a spring receiving portion provided on the other side of the base member, and the coil spring is compressed between the first spring support portion and the spring receiving portion. It is arranged in a state. That is, by relatively sliding the movable member and the base member, the coil spring is compressed between the first spring support portion and the spring receiving portion, and a preload spring force is stored.

  Preferably, the spring comprises a pair of coil springs, and the coil springs are provided on both sides of a guide mechanism for guiding the base member and the movable member so as to be slidable linearly and outside the guide mechanism. Are arranged respectively. In such a configuration, the biasing force of the pair of coil springs acts in parallel outside the guide mechanism, so that the actuator is biased stably without tilting.

  In a preferred aspect, the actuator includes the pressing member, the driving unit, a push rod that moves in the axial direction by the operation of the driving unit to move the pressing member back and forth, And a buffer spring provided between the push rod and the push rod, the buffer spring having a smaller spring constant than the spring in the preload unit.

  Therefore, even when the pressing member operates in the protruding direction via the buffer spring, the state of the preload unit hardly changes, and the state in which the actuator abuts on the vehicle side panel is continued.

  The tubular member is desirably attached to the actuator housing so as to be position-adjustable along the biasing direction. By adjusting the position of the tubular member with respect to the actuator housing in this way, it is possible to make the positional relationship between the ignition button and the pressing member more appropriate.

  The tubular member is desirably formed of a transparent material, and further has a cutout at the tip end portion covering the ignition button, into which a finger can be inserted.

  By making the cylindrical member transparent, it is possible to visually recognize the state of the ignition button, the positional relationship between the ignition button and the pressing member, and the like. If necessary, it is possible to insert a finger through the notch and perform an artificial pressing operation of the ignition button.

  According to the present invention, as the ignition operation actuator device that presses the push-type ignition button, the preload unit that urges the actuator toward the vehicle-side panel on which the ignition button is disposed is provided. , And the pressing operation of the ignition button can be assured. In particular, erroneous operation of the ignition button can be avoided even when the brake operation actuators of the drive robot operate simultaneously.

FIG. 2 is a partially cutaway front view showing an embodiment of the ignition operation actuator device. FIG. FIG. 4 is a perspective view of an erroneous operation prevention collar. The bottom view of a preload unit. The front view of a preload unit. The side view of a preload unit. FIG. 3 is an exploded view of the preload unit viewed from a lower surface side. The perspective view which contrasts (A) free state and (B) locked state of a preload unit. Sectional drawing of the principal part which shows the state in which the actuator was installed with respect to the ignition button. FIG. 4 is a perspective view of an erroneous operation prevention collar provided with a tape switch on a distal end surface.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

  1 and 2 show an embodiment of an ignition operation actuator device according to the present invention, which is used in combination with, for example, a chassis dynamometer.

  This ignition operation actuator device includes an actuator 1 for pressing a push-type ignition button 51 (see FIG. 9) of a vehicle, a predetermined preload for the actuator 1 which supports the actuator 1 and is installed in a vehicle interior. And a preload unit 2 to be provided.

  Various types of actuators can be used as the actuator 1. In this embodiment, a direct-acting electric actuator that is a combination of an electric motor and a ball screw mechanism is used. The actuator 1 has an actuator housing 4 having a relatively elongated cylindrical shape. An electric motor serving as a driving unit and a ball screw mechanism (not shown) are housed inside the actuator housing 4. A harness 5 connected to an electric motor is drawn out from a base end of the actuator housing 4.

  A relatively thick cup-shaped guide sleeve 6 opened toward the distal end of the actuator housing 4 is provided at the distal end of the actuator housing 4. The guide sleeve 6 forms a part of the actuator housing 4. More specifically, the outer peripheral surface of the guide sleeve 6 has a stepped shape having different diameters, and the small diameter portion is fitted to the inner periphery of the cylindrical outer cylinder 7 forming the main part of the actuator housing 4, and has a large diameter. The outer peripheral surface of the portion and the outer peripheral surface of the outer cylinder 7 form a continuous cylindrical surface having substantially the same diameter. Therefore, the actuator housing 4 including the outer cylinder 7 and the guide sleeve 6 has a cylindrical shape having a substantially constant outer diameter as a whole. The direction along the central axis of the cylinder of the actuator housing 4, that is, the direction along the longitudinal direction of the actuator 1 is referred to as the axial direction of the actuator 1. The preload unit 2 applies an urging force along the axial direction of the actuator 1 as described later.

  The guide sleeve 6 has an inner peripheral guide surface 6a formed of a cylindrical surface, and the pressing member 8 is slidably fitted on the inner peripheral guide surface 6a. The pressing member 8 has a cylindrical portion 8a fitted to the inner peripheral guide surface 6a, and a hemispherical spherical portion 8b protruding from the opening surface of the guide sleeve 6, and the initial state of the actuator 1 (in other words, pressing). In a state where the member 8 is at the retracted position), substantially the entire hemispherical spherical portion 8b is exposed from the opening surface of the guide sleeve 6.

  A stepped center hole 9 is formed in the center of the cylindrical portion 8a along the axial direction, and the tip end of the push rod 10 extending through the bottom wall 6b of the guide sleeve 6 is formed together with the cushioning spring 11. Fitted so that it can slide in the axial direction. Specifically, the tip of the push rod 10 is slidably fitted in the small diameter portion 9a of the center hole 9, and the flange portion 10a of the push rod 10 is slidable in the large diameter portion 9b of the center hole 9. Mated. The buffer spring 11 is disposed between one end of the large diameter portion 9b and the flange portion 10a in a slightly compressed state. Further, a retainer 12 is fixed to an end face of the cylindrical portion 8a by a screw 13, and the retainer 12 holds the flange portion 10a and the buffer spring 11 in the large-diameter portion 9b.

  That is, the pressing member 8 is urged by the buffer spring 11 in the protruding direction with respect to the push rod 10. When the pressing member 8 is pressed in the retreating direction from the outside, the cushioning spring 11 is configured to be able to retreat with respect to the push rod 10 by a certain stroke while being compressed. Note that the stroke of the drive unit including the electric motor and the ball screw mechanism is larger than the stroke allowed between the push rod 10 and the center hole 9 described above.

  Therefore, when the push rod 10 advances in the projecting direction by the drive unit including the electric motor and the ball screw mechanism when the ignition button 51 is pressed, the pressing member 8 advances through the buffer spring 11 and the ignition button 51 Is pressed. Even if the operation reaction force of the ignition button 51 is larger than the spring force of the buffer spring 11, the pressing member 8 is moved when the stroke of the push rod 10 by the driving portion exceeds the stroke allowed between the push rod 10 and the center hole 9. Moves forward, and the ignition button 51 is depressed. The outer diameter of the pressing member 8, that is, the outer diameter of the column portion 8a is set to, for example, about 20 to 25 mm so as to be slightly smaller than the diameter of the ignition button 51 of a general vehicle.

  A cylindrical erroneous operation prevention collar 15 is attached to the distal end of the actuator housing 4 as a cylindrical member surrounding the outer circumferences of the guide sleeve 6 and the pressing member 8. As shown in FIG. 3, the erroneous operation prevention collar 15 includes a metal mounting member 16 having a ring portion 16a and a relatively short cylindrical portion 16b, and a sleeve formed of a transparent synthetic resin material into a simple cylindrical shape. 17 are comprised. The sleeve 17 is fitted to the outer periphery of the cylindrical portion 16b of the mounting member 16 with a very small gap therebetween, and the base end side end surface is joined to the end surface of the ring portion 16a by an appropriate means such as an adhesive. I have. The mounting member 16 has an inner diameter corresponding to the outer diameter of the actuator housing 4 and is fitted to the outer peripheral surface of the actuator housing 4 so as to be slidable back and forth. Attachment screws 18 are provided, for example, at four positions at 90 ° intervals on the ring portion 16 a of the attachment member 16, and the erroneous operation prevention collar 15 is fixed to the actuator housing 4 by the attachment screws 18. Therefore, the erroneous operation prevention collar 15 can be adjusted in the front-rear direction along the axial direction of the actuator 1, and is fixed by the mounting screw 18 at the appropriately adjusted position.

  When the actuator device is used, as shown in FIG. 9, the erroneous operation prevention collar 15 is in a state in which the distal end surface 17 a of the transparent sleeve 17 is in contact with a vehicle side panel around the ignition button 51, for example, a dash panel 52. By adjusting the mounting position of the erroneous operation prevention collar 15 with respect to the actuator housing 4, the positional relationship between the distal end face 17 a of the sleeve 17 abutting on the dash panel 52 and the pressing member 8 can be made appropriate. In the illustrated example, in the initial state, the tip surface 17a of the sleeve 17 and the apex of the spherical portion 8b of the pressing member 8 are aligned on substantially the same plane. For example, when the ignition button 51 protrudes greatly from the surrounding panel surface, the distal end surface 17a of the sleeve 17 that comes into contact with the panel surface is positioned relatively forward of the vertex of the spherical portion 8b of the pressing member 8. Thus, the mounting position of the erroneous operation prevention collar 15 is adjusted.

  In the example of FIG. 9, the dash panel 52 is provided with an annular bulging portion 52a surrounding the ignition button 51, and the distal end surface 17a of the erroneous operation prevention collar 15 is applied to the outer peripheral side of the bulging portion 52a. Touch

  Since the sleeve 17 is transparent, it is possible to visually check the state of the ignition button 51, the positional relationship between the ignition button 51 and the pressing member 8, and the like.

  The transparent sleeve 17 of the erroneous operation prevention collar 15 further includes a cutout portion 17b large enough to allow insertion of fingers. The cutout portion 17b has a substantially U-shape that is open at the distal end surface 17a of the sleeve 17, and is provided, for example, at two positions 180 ° apart from each other in the sleeve 17. The notch 17b is used when the operator manually operates the ignition button 51. For example, in many vehicles, when the ignition button 51 is depressed without stepping on the brake pedal, a so-called Acc state occurs in which electric power is supplied to an electric system including instruments without starting the engine. The confirmation of the instruments in the Acc state can be easily performed by manual operation through the notch 17b.

  In particular, in the above embodiment, since the pressing member 8 is supported via the buffer spring 11, when a finger is put in a gap generated between the surface of the spherical portion 8b of the pressing member 8 and the surface of the ignition button 51, The cushioning spring 11 bends and the pressing member 8 retreats, and the finger easily reaches the center of the ignition button 51. Therefore, manual operation becomes easy and reliable.

  The actuator 1 configured as described above is supported in the cabin of the test vehicle by a tip of an arm 19 extending from a frame (not shown) of a drive robot (not shown) fixed to, for example, a driver's seat. Specifically, the preload unit 2 is interposed between the arm 19 and the actuator 1, and the actuator 1 is supported by the arm 19 via the preload unit 2.

  Next, the preload unit 2 will be described with reference to FIGS. The preload unit 2 is a mechanism that urges the actuator 1 so as to apply a predetermined preload toward the panel surface after installing the actuator 1 so that the distal end surface 17a of the sleeve 17 contacts the panel surface.

  As is apparent from the exploded view of FIG. 7, the preload unit 2 includes a base plate 21 serving as a base member supported by the arm 19, a movable plate 22 serving as a movable member to which the actuator 1 is fixedly mounted, and It is generally constituted by a pair of coil springs 23 provided between the base plate 21 and the movable plate 22 for applying a preload. In the following, for ease of understanding, the terms “up” and “down” are used based on the postures of FIGS. 1 and 2. However, this does not mean that the actuator device of the present invention is used only in the postures of FIGS.

  Therefore, the base plate 21 is supported from below by the arm 19, and the movable plate 22 overlaps the base plate 21. The actuator 1 is mounted on the movable plate 22.

  Note that the exploded view of FIG. 7 and the perspective view of FIG. 8 correspond to a view of the preload unit 2 viewed from below, based on the postures of FIGS. The movable plate 22 includes a movable plate body 25 having a rectangular plate shape, and a first end plate 26 and a second end plate attached to the front and rear end surfaces of the movable plate body 25 via a pair of screws 28, respectively. 27. The first end plate 26 and the second end plate 27 have basically the same outer shape, and extend elongated along the end face of the movable plate main body 25, as shown in FIG. And a pair of spring support portions 26a and 27a projecting downward.

  A spring guide bolt 29 is arranged between the spring support 26a of the first end plate 26 and the spring support 27a of the second end plate 27. As shown in FIG. 7, the spring guide bolt 29 has a head portion 29a having a hexagonal hole (not shown), a shaft portion 29b formed of a cylindrical surface having no threads, and extends from the tip of the shaft portion 29b. And a screw portion 29c. The spring support portion 26a of the first end plate 26 has a circular through hole 26b through which the shaft portion 29b passes, and the spring support portion 27a of the second end plate 27 has a screw hole into which the screw portion 29c is screwed. 27b. Therefore, the spring guide bolt 29 extends through the through hole 26 b of the first end plate 26, and the screw portion 29 c at the tip is screwed and fixed to the screw hole 27 b of the second end plate 27. The length of the shaft portion 29b corresponds to the distance between the first end plate 26 and the second end plate 27. When the screw portion 29c is screwed into the screw hole 27b, the head portion 29a is attached to the first end plate. 26 is pressed against the outer surface. The pair of spring guide bolts 29 extend in parallel with the axial direction of the actuator 1.

  The pair of coil springs 23 are each fitted and arranged on the outer periphery of the spring guide bolt 29. In other words, the spring guide bolt 29 is inserted through the inner peripheral side of the coil spring 23, and thereby the coil spring 23 is held (see FIGS. 4, 5 and the like).

  Between the first end plate 26 and the second end plate 27, a pair of guide rails 32 forming a pair of linear guides 31 is attached to the lower surface of the movable plate main body 25 via screws 35 (FIG. 1). 7). These guide rails 32 are respectively combined with sliders 33 on the base plate 21 side shown in an exploded manner in FIG. 7, and both constitute a linear guide 31 for performing highly accurate linear guide. These guide rails 32 also extend parallel to the axial direction of the actuator 1.

  Further, as shown in FIG. 7, a circular lock hole 34 forming a part of the lock mechanism is formed on one side of the movable plate main body 25. The lock hole 34 may be a concave portion in which the upper surface side of the movable plate 22 is closed, but in the illustrated example, the lock hole 34 is formed as a through hole that vertically passes through the movable plate main body 25.

  The actuator 1 is mounted on the movable plate 22 configured as described above. As shown in FIG. 7, through holes 36 extending vertically are formed at the center of each of the first end plate 26 and the second end plate 27, and the actuator mounting member inserted from below through these through holes 36 is provided. The actuator 1 and the movable plate 22 are connected and fixed by the screw 37 (see FIG. 6).

  The base plate 21 is mainly composed of a base plate main body 40 having a substantially rectangular shape substantially the same size as the movable plate main body 25, and is combined so as to be relatively slidable with the movable plate 22 along the axial direction of the actuator 1. Have been. Specifically, a pair of sliders 33 forming the linear guide 31 together with the above-described guide rail 32 is fixed to the upper surface of the base plate main body 40 via screws 41 (see FIGS. 4 and 8). The pair of linear guides 31 allow the movable plate 22 to slide along the axial direction of the actuator 1 with respect to the base plate 21. As shown in FIG. 6, since the slider 33 having a substantially U-shaped cross section is fitted to the guide rail 32, the base plate 21 and the movable plate 22 are not separated vertically. A commercially available linear guide 31 can be used.

  At the center of the lower surface of the base plate main body 40, a mounting rail 42 to which the tip of the arm 19 described above is mounted is fixed via a pair of screws 43 (see FIGS. 6 and 8). The mounting rail 42 has a channel shape having a substantially U-shaped cross section, and also extends along the axial direction of the actuator 1. The distal end of the arm 19 is fixed to the mounting rail 42 after adjusting the position along the mounting rail 42. The front and rear end surfaces of the base plate main body 40 have a shape in which the respective center portions project forward and backward corresponding to the length of the mounting rail 42.

  A spring receiving member 46 is fixed to a pair of side surfaces of the base plate main body 40 by a pair of screws 45, respectively. Each of the spring receiving members 46 has a rod shape extending along the side surface of the base plate main body 40, and has a spring receiving portion 46 a formed at one end near the first end plate 26. The spring receiving portion 46a protrudes outward and upward from the main body portion of the rod-shaped spring receiving member 46 (see FIGS. 5 and 8). The spring receiving portion 46a has a through hole 46b (see FIG. 5) through which the shaft portion 29b of the spring guide bolt 29 described above slides. The diameter of the through hole 46b is smaller than the diameter of the coil spring 23. Therefore, in the assembled state, the spring guide bolt 29 penetrates through the through hole 46b of the spring receiving portion 46a so as to be freely slidable, while one end of the coil spring 23 is pressed against the spring receiving portion 46a. In other words, the coil spring 23 is disposed between the spring support portion 27a of the second end plate 27 and the spring receiving portion 46a of the base plate 21 in a compressed state. Note that the pair of spring receiving members 46 are configured symmetrically with each other.

  As is clear from FIGS. 6 and 7 and the like, the pair of coil springs 23 are on both sides of the pair of linear guides 31 serving as a guide mechanism between the base plate 21 and the movable plate 22 and on the outside of the linear guides 31. At different positions. Therefore, the spring force of the pair of coil springs 23 acts in parallel outside the linear guide 31, and the base plate 21 and the movable plate 22 do not tilt with each other.

  Further, the base plate 21 includes a lock pin 48 that constitutes a lock mechanism together with the lock hole 34 on the movable plate 22 side. The lock pin 48 extends in a direction orthogonal to the sliding direction, and as shown in FIG. 8, a cylindrical base 48a which is screwed into a screw hole (not shown) of the base plate main body 40 and fixed. A plunger portion 48b that slides up and down by a predetermined amount with respect to the base portion 48a. The plunger portion 48b has a disk-shaped knob portion 48c at the base end. At the tip of the plunger portion 48b, a rod-shaped pin portion having a diameter that can be fitted into the lock hole 34 on the movable plate 22 side is formed so as to project, though not shown in each figure. It is desirable that the plunger portion 48b includes a spring mechanism that urges the base portion 48a upward (that is, in a direction in which the plunger portion 48b engages with the lock hole 34).

  The lock hole 34 and the lock pin 48 coincide with each other at a position where the movable plate 22 slides with respect to the base plate 21 by a certain amount while compressing the coil spring 23. More specifically, the lock hole 34 and the lock pin 48 coincide with each other at a position where the spring receiving portion 46a on the base plate 21 side and the spring support portion 27a on the movable plate 22 are almost brought into contact with each other. At this position, the base plate 21 and the movable plate 22 can be locked to each other by engaging the pin portion of the lock pin 48 with the lock hole 34.

  FIG. 8 illustrates the operation of the preload unit 2 having the above-described lock mechanism. FIG. 8A shows an initial state in which the coil spring 23 is extended to the maximum. In this state, since the lock pin 48 and the lock hole 34 are displaced, the base plate 21 and the movable plate 22 are not locked to each other, and the movable plate 22 can slide with respect to the base plate 21.

  FIG. (B) shows a state in which the movable plate 22 is slid with respect to the base plate 21 while compressing the coil spring 23 from the state of FIG. The movable plate 22 is locked with respect to the base plate 21. Therefore, the coil spring 23 is held in a state of being compressed more than the initial state, and a state in which a spring force for applying a preload to the actuator 1 is stored. Although the actuator 1 is not shown in FIG. 8, the sliding direction of the movable plate 22 in FIG. Therefore, when the lock is released from the state shown in FIG. 2B, the actuator 1 is urged in the forward direction by the stored spring force.

  Next, an operation procedure of the actuator device will be described.

  First, when the actuator 1 is mounted on the preload unit 2 as shown in FIG. 1, the actuator 1 and the movable plate 22 are slid with respect to the base plate 21 in the retreating direction of the actuator 1. Then, it is locked at a predetermined position by the lock mechanism. That is, as shown in FIG. 8B, the preload unit 2 is in a state of storing the spring force.

  Next, by adjusting the arm 19 supporting the preload unit 2 and a joint (not shown) related to the arm 19, the actuator 1 is aligned with the ignition button 51. Specifically, as shown in FIG. 9, the tip surface 17 a of the erroneous operation prevention collar 15 at the tip of the actuator 1 is in contact with the dash panel 52 around the ignition button 51. At this time, the erroneous operation prevention collar 15 does not necessarily have to be in close contact with the dash panel 52.

  Next, in the state where the position adjustment of the actuator 1 is completed, the lock pin 48 of the preload unit 2 is pulled down to release the lock. With the release of the lock, the spring force of the pair of coil springs 23 acts on the movable plate 22, and the actuator 1 is urged toward the dash panel 52 by the spring force. That is, the tip surface 17a of the erroneous operation prevention collar 15 is brought into pressure contact with the dash panel 52 with a predetermined preload.

  In such a state, the ignition operation is performed by the drive robot. When the ignition button 51 is turned on, since the brake pedal is simultaneously operated by another actuator as described above, the frame that fixedly supports the drive robot on the driver's seat is displaced by the reaction force of the brake pedal. The arm 19 supporting the actuator 1 tends to slightly retreat. However, even if such an arm 19 is displaced, the actuator 1 is always urged toward the dash panel 52 by the spring force of the coil spring 23, so that the distal end face 17 a of the erroneous operation prevention collar 15 is moved from the dash panel 52. Never leave. Therefore, as the pressing member 8 advances, the ignition button 51 is reliably operated. That is, if the displacement of the arm 19 is within the range of the stroke from the initial state shown in FIG. 8A to the locked state shown in FIG. 8B, the state in which the erroneous operation prevention collar 15 is pressed against the dash panel 52 is maintained. You.

  Note that the pair of coil springs 23 is located outside the linear guide 31, and the pair of coil springs 23 generate an urging force in parallel on both sides of the central axis of the actuator 1. The actuator 1 can be biased stably.

  Further, as described above, since the sleeve 17 of the erroneous operation prevention collar 15 is transparent, the state of the ignition button 51 and the positional relationship between the pressing member 8 and the ignition button 51 can be visually recognized. Further, since the transparent sleeve 17 has the cutout portion 17b, the operator can manually operate the ignition button 51 by inserting a finger as necessary.

  Next, FIG. 10 shows that a contact switch, specifically, a tape-shaped tape switch 60 is provided on the tip end surface 17a of the erroneous operation prevention collar 15 in order to electrically detect a contact state between the actuator 1 and the dash panel 52. An example is shown. In particular, in this embodiment, the tape switch 60 is formed so as to conform to the arc-shaped shape of the distal end face 17a of the transparent sleeve 17, and the tape switch 60 is disposed over the entire contact surface. By providing the tape switch 60 in this way, it is possible to easily detect an abnormality such as the erroneous operation prevention collar 15 rising from the dash panel 52 during the test.

  As mentioned above, although one Example of this invention was described in detail, this invention is not limited to the said Example, Various changes are possible.

  For example, the actuator 1 is not limited to a direct-acting type in which an electric motor and a ball screw mechanism are combined as in the above embodiment, but may be of any type such as a solenoid type or a type using a cam. You may. Further, the present invention can be applied to an actuator of a type in which a drive source such as an electric motor is provided outside the actuator housing and the force is transmitted to a pressing member via a wire cable or the like.

DESCRIPTION OF SYMBOLS 1 ... Actuator 2 ... Preload unit 8 ... Pressing member 8
DESCRIPTION OF SYMBOLS 10 ... Push rod 11 ... Buffer spring 15 ... Misoperation prevention collar 16 ... Mounting member 17 ... Sleeve 17b ... Notch 21 ... Base plate 22 ... Movable plate 23 ... Spring 29 ... Spring guide bolt 31 ... Linear guide 34 ... Lock hole 46 ... Spring receiving member 48 ... Lock pin 51 ... Ignition button 52 ... Dash panel

Claims (9)

An actuator having a driving unit and a pressing member that is operated by the operation of the driving unit and presses a push-type ignition button of the vehicle;
A preload unit that is supported via an arm in the vehicle interior and biases the actuator toward a vehicle-side panel on which the ignition button is arranged;
With
The preload unit,
A base member supported by the arm,
A movable member combined with the base member so as to be slidable along the biasing direction, and to which the actuator is attached;
A spring provided between the base member and the movable member, for urging the movable member toward the vehicle-side panel;
An ignition operation actuator device comprising: The above preload unit,
A releasable lock mechanism that locks the movable member with respect to the base member at a position where the movable member is slid relative to the base member in a direction opposite to the urging direction so that the spring stores a spring force. The ignition operation actuator device according to claim 1, further comprising: The preload unit includes a spring guide bolt fixed to the movable member or the base member,
3. The actuator device according to claim 1, wherein the spring comprises a coil spring fitted and held on an outer periphery of the spring guide bolt. 4. Both ends of the spring guide bolt are supported by first and second spring support portions provided on one of the movable member or the base member,
The spring guide bolt slidably passes through a through hole of a spring receiving portion provided on the other of the movable member or the base member,
The actuator device according to claim 3, wherein the coil spring is disposed in a compressed state between the first spring support portion and the spring receiving portion. The spring comprises a pair of coil springs,
The said coil spring is each arrange | positioned at the position outside both sides of the guide mechanism which guides the said base member and the said movable member so that a linear slide is possible, and each said guide mechanism, The said coil spring. An ignition operation actuator device according to any one of claims 1 to 4. The above actuator is
The pressing member,
The driving unit;
A push rod that moves in the axial direction by the operation of the drive unit to move the pressing member back and forth,
A buffer spring provided between the pressing member and the push rod,
With
The actuator device according to any one of claims 1 to 5, wherein the buffer spring has a smaller spring constant than the spring in the preload unit.   7. The actuator according to claim 1, wherein a distal end portion of the actuator is provided with a tubular member that surrounds the pressing member and whose distal end is pressed against the vehicle side panel by the spring force of the spring. An actuator device for an ignition operation according to item 1.   The actuator device for ignition operation according to claim 7, wherein the tubular member is attached to the actuator housing so as to be adjustable in position along the biasing direction. The tubular member is formed of a transparent material,
9. The ignition device according to claim 7, wherein a cutout portion into which a finger can be inserted is formed in a tip side portion covering the ignition button.

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