JP2006062507A - Actuator device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an actuator device of small and thin construction capable of preventing a cover from deformation certainly and stopping an output gear after its rotating to a certain extent certainly at all times. <P>SOLUTION: The actuator device is equipped with a motor accommodated in a case having a cover, an output gear rotated by the drive shaft of the motor through decelerating gears, an output shaft rotating together with the output gear, and an output cam attached to the output shaft, wherein an accommodation recess for accommodating a stopper piece is formed at the top surface of the output gear and a projection is formed on the output shaft confronting the inside of the accommodation recess, and the stopper piece is furnished with an engaging convex and stoppers to be engaged with and separate from the projection on the output shaft, and a stopper is provided to restrict the rotating extent of the output gear while the stoppers of the stopper piece abut to and are engaged with the inside surface of the cover, and a damper is interposed between the stopper piece and the stoppers on the inside surface of the cover. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an actuator device suitable for use in, for example, a steering lock device that locks or unlocks a steering shaft of a vehicle.

  A steering lock device as a conventional actuator device includes a case having a cover that covers a motor accommodating portion and a gear accommodating portion, a motor accommodated in the motor accommodating portion of the case, and a gear accommodating portion of the case that is rotatably accommodated. An output gear that is rotationally driven through a reduction gear by a drive shaft of the motor, an output shaft that is penetrated and fixed to the shaft portion of the output gear, and rotates with the output gear, and is attached to the output shaft, An output cam used when locking and unlocking the steering shaft, and a pair of limit switches disposed in the gear housing portion of the case and turned on or off by a cam portion formed integrally with the shaft portion of the output gear; It has.

  Further, on the upper surface of the output gear, a protrusion that is in contact with and locked to a protrusion that protrudes from the inner surface of the cover is provided. When the projection of the output gear and the projection of the cover come into contact with each other, the cam portion of the shaft portion of the output gear turns on the limit switch and the motor is turned off. In order to absorb the load when the projections of the output gear and the projections of the cover are engaged with each other, an elastic body is attached to the projections of the cover.

JP 2002-205622 A

JP 2002-326559 A

  However, in the conventional steering lock device, a large load is applied to the protrusion of the cover when the protrusion protruding from the upper surface of the output gear contacts and locks the protrusion protruding from the inner surface of the cover. The cover was lifted up, and the cover was easily deformed or damaged. And there was a possibility that the output gear could be rotated more than necessary without being restricted by the deformation of the cover. In order to cope with this, an elastic body is attached to the protrusion on the inner surface of the cover so as to absorb the impact (load) when locked with the protrusion on the upper surface of the output gear. A large space for locking and separating the protrusions on the upper surface of the gear is indispensable, and the entire apparatus has been enlarged accordingly.

  Therefore, the present invention has been made to solve the above-described problems, and realizes an impact absorbing damper structure in a housing recess in a small space of the output gear while securing the operating angle of the stopper and the capacity of the damper. An object of the present invention is to provide a small and thin actuator device which can be stopped after the output gear is always rotated within a predetermined range with certainty.

  The invention according to claim 1 is a case having a cover that covers the motor accommodating portion and the gear accommodating portion, a motor accommodated in the motor accommodating portion of the case, and a gear accommodating portion of the case that is rotatably accommodated, An output gear that is rotationally driven by a drive shaft of a motor via a reduction gear, an output shaft that is rotatably supported by the case and rotates together with the output gear, and an output member attached to the output shaft, An actuator device is provided with a stopper body rotatably attached to the output shaft, and provided with a stopper for restricting the rotation range of the output gear by locking the stopper body to the inner surface of the cover, on the upper surface of the output gear An accommodation recess for accommodating the stopper body is formed, and a projection is formed on the output shaft facing the accommodation recess, so that the stop is formed. The body is provided with a locking projection and at least a pair of stoppers that are locked to and separated from the protrusions of the output shaft, and each stopper of the stopper body abuts and locks on the inner surface of the cover so that the output gear rotates. At least a pair of stoppers for restricting the range are provided, and a damper is interposed between the stopper body and each stopper on the inner surface of the cover.

  A second aspect of the present invention is the actuator device according to the first aspect, wherein the stopper body is formed in a substantially disc shape having a cylindrical portion at the center thereof, and the stopper body is formed on the inner peripheral surface of the cylindrical portion. The locking projection is integrally formed, the at least one pair of stoppers is integrally formed on the upper surface of the stopper body, the damper is formed in an annular shape, and the stopper body of the annular damper is formed. A thick portion is formed between each stopper and each stopper on the inner surface of the cover.

  A third aspect of the invention is the actuator device according to the first aspect, wherein a labyrinth protrusion that extends so as to surround a peripheral wall of the housing recess of the output gear is formed in an annular shape outside each stopper on the inner surface of the cover. It is characterized by being formed.

  As described above, according to the first aspect of the present invention, an accommodation recess for accommodating the stopper body is formed on the upper surface of the output gear, and a projection is formed on the output shaft facing the accommodation recess, so that the stopper body At least a pair of locking projections and at least a pair of stoppers, which are locked and separated from the projections of the output shaft, are provided, and each stopper of the stopper body abuts and locks on the inner surface of the cover to regulate the rotation range of the output gear. In addition, the stoppers and the stoppers of the cover and the dampers can be accommodated in the recesses of the output gear, respectively, by providing a stopper between the stopper body and each stopper on the inner surface of the cover. . As a result, it is possible to realize the shock absorbing damper structure in the accommodating recess in the small space of the output gear while ensuring the operating angle of the stopper of the stopper body and the capacity of the damper. As a result, the entire actuator device can be reduced in size and thickness, and the output gear can always be stopped after being reliably rotated within a predetermined range. Further, as compared with the conventional case where there is only one projection provided on the output gear and the cover, the impact (load) applied when the stoppers of the stopper body and the stoppers on the inner surface of the cover are in contact with each other is dispersed. It is possible to reliably prevent deformation and breakage of the cover.

  According to the second aspect of the present invention, the locking convex portion is integrally formed on the inner peripheral surface of the cylindrical portion of the substantially disc-shaped stopper body having the cylindrical portion at the center, and at least a pair of the upper surface of the stopper body. The stoppers of the stopper body housed in the housing recesses of the output gear are formed by integrally protruding the stoppers and forming thick portions on the dampers between the stoppers of the stopper body and the stoppers on the inner surface of the cover. The shock (load) applied when the stoppers on the inner surface of the cover come into contact with each other can be absorbed in a balanced manner with a thick portion of the damper. As a result, deformation or breakage such as bending of the cover can be reliably suppressed, and the output gear can always be stopped after being rotated accurately and reliably within a predetermined range.

  According to the invention of claim 3, the thick portion of the damper is formed by forming the labyrinth protrusion extending in an annular shape so as to surround the peripheral wall of the housing recess of the output gear on the outside of each stopper on the inner surface of the cover. However, even if it is damaged due to impact, deterioration, fatigue, etc., the damaged part will not scatter outside the labyrinth protrusion.

  Embodiment 1 of the present invention will be described below with reference to the drawings.

  1 is an exploded perspective view of a steering lock device according to a first embodiment of the present invention, FIG. 2 is a plan view of the device, FIG. 3 is a bottom view of the device, and FIG. 4 is a perspective view of the device viewed from the bottom side. 5 is a rear view of the apparatus, FIG. 6 is a plan view inside the case of the apparatus, FIG. 7 is a sectional view taken along line XX in FIG. 2, and FIG. 8 is a side view of a motor used in the apparatus. 9 is a plan view of the motor, FIG. 10A is a rear view of a cylindrical elastic member attached to the motor, FIG. 10B is a side view of the elastic member, and FIG. FIG. 11A is an enlarged sectional view showing a terminal connection portion of the motor, FIG. 11B is an enlarged sectional view showing a state in which a terminal is connected to the terminal connection portion, and FIG. 11C. Is a partial plan view of the motor with the terminal connected, FIG. 12 is a sectional view taken along line YY in FIG. 2, FIG. 13 is an enlarged sectional view of the Z portion in FIG. 14 (a) is an explanatory view showing the relationship between the output shaft, stopper body, damper and cover stopper used in the apparatus, FIG. 14 (b) is a cross-sectional view taken along the line P-P in FIG. 14 (a), FIG. 15 (a) is a sectional view of the tip of the output shaft, FIG. 15 (b) is a side view of the tip of the output shaft, FIG. 16 (a) is a plan view of the stopper body, and FIG. 16A is a sectional view taken along line Q-Q, FIG. 17A is a plan view of the damper, FIG. 17B is a sectional view of the damper, and FIG. 18A is a main part of the cover. 18B is a sectional view taken along line RR in FIG. 18A, FIG. 19A is a side view of the lower end portion of the output shaft, and FIG. 19B is the output shaft. FIG. 20 to FIG. 24 explain the relationship between the rotation state of the output shaft and the operation state of the limit switch step by step. It is an explanatory diagram.

  As shown in FIGS. 1 to 6, a steering lock device (actuator device) 10 includes a box case 11 made of a synthetic resin and having a motor housing portion 11a and a gear housing portion 11b communicating with the motor housing portion 11a. A synthetic resin cover 12 is provided that is fastened and fixed with screws 15 so as to cover the motor housing portion 11a and the gear housing portion 11b of the case 11. A motor 20 is accommodated in the motor accommodating portion 11a of the case 11, and the tip 21a of the armature shaft (drive shaft) 21 is rotatably supported by the bearing 17 held by the bearing holding portion 11d of the gear accommodating portion 11b. Has been. A rubber O-ring (vibration isolation member) 18 is fitted into the small diameter portion 17 a of the bearing 17. The tip end 21a of the armature shaft 21 of the motor 20 is supported by the bearing holding portion 11d of the gear housing portion 11b so as to float freely by the bearing 17 and the rubber O-ring 18. Further, a worm 21b is formed on the distal end side of the armature shaft 21, and the worm 21b enters the gear housing portion 11b. When current is supplied to an armature coil of an armature (not shown) attached to the armature shaft 21, the armature is rotated forward or backward, and when the current supplied to the armature coil is interrupted, the electromagnetic braking circuit is Thus, an electromagnetic braking current flows through the armature coil.

  As shown in FIGS. 1 and 6, on both sides of the opposite side walls 11e and 11e of the motor accommodating portion 11a of the case 11 (in the vicinity of each corner portion), a pair of convex portions 11f extending in parallel in the vertical direction, 11f is integrally formed to project. Further, as shown in FIG. 7, a pair of convex portions 11g and 11g extending in parallel with the width direction are integrally formed on the bottom wall 11c in the motor accommodating portion 11a. The motor 20 is supported on the convex portions 11f and 11g of the motor accommodating portion 11a via an elastic member 22 attached to the motor 20 so as to be freely floating. In addition, rubber O-rings 20c and 20d are fitted into the front and rear bearing portions 20a and 20b of the motor 20, and the bearing portions 20a and 20b are inserted into the bearing holding portions of the case 11 through the O-rings 20c and 20d. The motor 20 is supported by 16a and 16b, respectively, and is supported so that it can float freely before and after the motor accommodating portion 11a. That is, the motor 20 is in the motor housing portion 11a and is supported by the case 11 in a freely floating manner by the elastic member 22 and the O-rings 20c and 20d.

  As shown in FIGS. 6-10, the elastic member 22 is formed in the cylinder shape, for example with the thermoplastic elastomer type resin material. That is, the elastic member 22 is formed in a cylindrical shape by an upper wall portion (upper portion) 22a, both side wall portions 22b and 22b, and a bottom wall portion (bottom portion) 22c. On the outer surface of the upper wall portion 22a and the bottom wall portion 22c of the elastic member 22, a pair of convex portions 22d and 22d extending in parallel in the front-rear direction are integrally formed. As shown in FIG. 7, each of the pair of convex portions 22d and 22d is a pair of convex portions formed integrally and projecting on the pair of convex portions 11g and 11g of the bottom wall 11c of the motor housing portion 11a and the inner surface 12a of the cover 12. It crosses over 12g and 12g, respectively. As a result, the motor 20 has the upper wall portion 22a of the elastic member 22 between the pair of convex portions 11g, 11g of the bottom wall 11c of the motor housing portion 11a and the pair of convex portions 12g, 12g of the inner surface 12a of the cover 12. A pair of convex portions 22d and 22d and a pair of convex portions 22d and 22d of the bottom wall portion 22c are supported in a floating manner.

  Further, a terminal pressing portion 22e is extended on the rear side of the upper wall portion 22a of the elastic member 22. As shown in FIGS. 9 and 11, the terminal holding portion 22 e is an L-shape that is inserted so as to come into contact with a substantially Z-shaped terminal connecting piece 23 that is a metal plate disposed in the hole 20 e of the motor 20. This is for pressing the shaped terminal 24. A core wire 25a of the harness 25 is sandwiched and soldered to a substantially V-shaped portion at one end of the terminal 24. As shown in FIGS. 6 to 10, a pair of harness holding portions 22 f and 22 f that hold the harness 25 are integrally formed on the upper and lower portions of the side wall portions 22 b and 22 b of the elastic member 22.

  As shown in FIGS. 1, 6, 7, and 12, the gear housing portion 11 b of the case 11 includes a synthetic resin reduction gear 26 that is rotationally driven by the armature shaft 21 of the motor 20 and the reduction gear 26. And an output gear 28 made of synthetic resin, which is rotationally driven via each other, is rotatably accommodated. The reduction gear 26 has a large-diameter gear portion 26 b that meshes with the worm 21 b of the armature shaft 21 of the motor 20 and a small-diameter gear portion 26 c that meshes with the output gear 28. A round hole 26a is formed in the center of the reduction gear 26, and a support shaft 27 is passed through the round hole 26a. As shown in FIG. 12, the upper and lower ends of the support shaft 27 are fitted into the recess 11 h of the bottom wall 11 c of the case 11 and the recess 12 h of the inner surface 12 a of the cover 12, and the reduction gear is connected via the support shaft 27. 26 is rotatably supported.

  As shown in FIGS. 1, 6 and 12, a cylindrical output shaft 29 made of metal is integrally formed in a cylindrical gear body 28a of the output gear 28 by insert molding or the like. The lower end portion of the output shaft 29 with a small diameter is rotatably supported by a bearing 19 fitted to the bottom wall 11 c of the case 11, and the upper end portion 29 a with a small diameter of the output shaft 29 is a bearing formed on the cover 12. The part 12b is rotatably supported. As a result, both the output gear 28 and the output shaft 29 rotate. A cam portion 28c is integrally formed at the lower end of the gear main body portion 28a of the output gear 28. A pair of limit switches (switch means) 35, 35 that are turned on or off by the cam portion 28c are provided in the gear housing portion 11b of the case 11 facing the cam portion 28c. 37 and so on. Each limit switch 35 is connected with a pair of harnesses 38, 38 as shown in FIGS.

  As shown in FIGS. 1, 6, 12 and 14, an annular housing recess 28e for rotatably housing a stopper body 30 made of sintered metal is formed on the upper surface 28d of the output gear 28. is there. A projecting portion 29c is integrally formed on the lower side of the small diameter upper end portion 29a of the output shaft 29 facing the housing recess 28e. Further, as shown in FIG. 16, the stopper body 30 is formed in a substantially disc shape having a cylindrical portion 30a at the center thereof. The stopper body 30 has an inner peripheral surface 30 b of a cylindrical portion 30 a fitted into a large-diameter intermediate shaft portion 29 g of the output shaft 29, and the stopper body 30 is rotatably attached to the output shaft 29. Further, a locking projection 30c that locks and separates from the projection 29c of the output shaft 29 is integrally formed on the inner peripheral surface 30b of the cylindrical portion 30a. Further, on the upper surface 30d of the stopper body 30, four stoppers 31 that are in contact with and locked to the respective stoppers 13 of the cover 12 described later are integrally projected at predetermined intervals.

  As shown in FIGS. 12 to 14 and 18, four stoppers are provided on the inner surface 12 a of the cover 12 to restrict the rotation range of the output gear 28 so as to rotate the output gear 28 by a predetermined angle. 13 are integrally projected at predetermined intervals on the same circumference. A rubber damper 32 is interposed between the stoppers 13 on the inner surface 12a of the cover 12 (between the stoppers 31 of the stopper body 30 and the stoppers 13 on the inner surface 12a of the cover 12). As shown in FIG. 17, the damper 32 has an annular damper main body 32a. The annular damper main body 32a includes the stoppers 31 of the stopper body 30 and the stoppers 13 of the inner surface 12a of the cover 12. Four thick portions 32b disposed between them are integrally projected at predetermined intervals.

  That is, as shown in FIG. 14, before and after the rotation of the output gear 28 and the output shaft 29, each of the upper and lower dampers 32 positioned on the left and right facing the protrusion 29c of the output shaft 29 and the locking protrusion 30c of the stopper body 30 is provided. The pair of thick portions 32b and 32b are in contact with the opposing surfaces of the pair of upper and lower stoppers 13 and 13 positioned on the left and right of the inner surface 12a of the cover 12 in advance. Accordingly, the thick portion of the damper 32 mounted between the stoppers 13 on the inner surface 12a of the cover 12 and the stoppers 13 between the stoppers 31 of the stopper body 30 accommodated in the accommodating recesses 28e of the output gear 28. 32b is accommodated at substantially equal intervals. In addition, between the bottom surface of the housing recess 28e of the output gear 28 and the bottom surface of the stopper body 30, there are interposed an washer (bending washer) 33 and a pair of flat washers 34, 34 sandwiching the Earl washer 33. . The stopper 30 is always urged toward the inner surface 12a of the cover 12 by the elastic force of the isher 33.

  Further, as shown in FIGS. 12 and 13, a labyrinth protrusion 12 c that extends so as to surround a peripheral wall 28 f that forms an accommodation recess 28 e of the output gear 28 is formed outside each stopper 13 of the inner surface 12 a of the cover 12. It is formed to project integrally in an annular shape. The labyrinth protrusion 12c of the cover 12 and the peripheral wall 28f of the output gear 28 form a labyrinth structure.

  Further, as shown in FIGS. 12 and 19, a D-cut portion 29d for preventing rotation and a serration portion 29e for preventing rattling are provided at the lower end portion 29b of the output shaft 29 exposed outside the bottom wall 11c of the case 11. Each is formed, and a screw hole 29f is formed in the center thereof. An output cam (output member) 40 used for locking and unlocking a steering shaft (not shown) is fastened and fixed to the lower end portion 29b of the output shaft 29 via a screw 41.

  As described above, according to the steering lock device 10 of the first embodiment, when current is supplied to an armature coil (not shown) of the motor 20, the worm 21 b of the armature shaft 21 rotates and the output gear 28 rotates via the reduction gear 26. . The output shaft 29 rotates together with the rotation of the output gear 28.

  As shown in FIGS. 14A and 14B, from the state in which the stoppers 31 of the stopper body 30 housed in the housing recesses 28e of the output gear 28 are separated from the stoppers 13 of the cover 12, the output gear 28 is removed. When the output shaft 29 rotates by a predetermined angle in the direction of the arrow shown in FIG. 20 (a), as shown in FIG. 20 (b), the cam portion 28c formed integrally with the gear main body portion 28a of the output gear 28 is formed. As a result, the operation lever portion 35a of one limit switch 35 in the off state (OFF) disposed at the corner portion in the gear housing portion 11b of the case 11 is pushed, and the limit switch 35 is turned on (ON).

  When the limit switch 35 is turned on, a position detection signal is output to the motor 20 and the energization is turned off, and the current supplied to the armature coil is cut off. Even after the limit switch 35 is turned on, FIG. As shown, the output gear 28 and the output shaft 29 still rotate due to delay and coasting. At this time, for example, if the supply voltage is high or the ambient temperature is high, the overrun due to delay and coasting increases, and even after the limit switch 35 is turned on, as shown in FIG. The output shaft 29 further rotates in the direction of the arrow.

  Due to the rotation of the output gear 28 and the output shaft 29, as shown in FIG. 22 (a), the projection 29c of the output shaft 29 is engaged with the locking projection of the stopper body 30 accommodated in the accommodating recess 28e of the output gear 28. Press the part 30c. As a result, the stopper body 30 in the housing recess 28e of the output gear 28 rotates in the direction of the arrow as shown in FIG. 23A, and the two stoppers 31 facing each other of the stopper body 30 face each other. The two thick portions 32b facing each other of the rubber damper 32 mounted between the two stoppers 13 are respectively pressed. By this pressing, as shown in FIG. 24A, the two thick portions 32b facing each other of the rubber damper 32 are bent and the two stoppers 31 of the stopper body 30 facing each other are The two stoppers 13 facing each other are brought into contact with each other and locked. At this time, the rotation of the output gear 28 and the output shaft 29 is stopped. The position where the output gear 28 stops is a position where the limit switch 35 can be kept on by the cam portion 28c.

  In this manner, the two opposing stoppers 31 of the stopper body 30 accommodated in the accommodating recess 28e of the output gear 28 are respectively connected to the cover 12 via the two opposing thick parts 32b of the rubber damper 32. The two opposing thick stoppers 32b are bent by a predetermined amount, and then the two other opposing stoppers 31 of the stopper body 30 are attached to the cover 12. By making the two abutting stoppers 13 abut against each other and engaging with each other, the output gear 28 can always be stopped after being reliably rotated within a certain range. As a result, as compared with the case where the number of protrusions provided on the output gear and the cover is one as in the prior art, the shock applied when the stoppers 13 of the cover 12 and the stoppers 31 of the stopper body 30 are brought into contact with each other is reduced. Can be dispersed in half via the pair of thick parts 32b, 32b. For this reason, it is possible to reliably prevent deformation and breakage of the cover 12 such as lifting.

  Further, the impact applied when the stoppers 13 of the cover 12 and the stoppers 31 of the stopper body 30 are brought into contact with each other is subjected to a pair of thick portions 32b, 32b of the rubber damper 32 attached to the stoppers 13 of the cover 12. Can be absorbed in a well-balanced and reliable manner. As a result, deformation such as bending of the cover 12 can be reliably suppressed, and the output gear 28 can always be reliably stopped after being rotated accurately and reliably within a predetermined range. Further, even when the output gear 28 continues to rotate, the thick portions 32b of the rubber damper 32 can be compressed by the stoppers 31 of the stopper body 30 to absorb the impact force reliably. Damage to the stopper 31 and each stopper 13 of the cover 12 can be reliably prevented.

  Further, the rubber body 32 mounted on the stopper body 30, the stoppers 13 of the cover 12, and the stoppers 13 of the cover 12 can be accommodated in the accommodating recesses 28 e of the output gear 28. Thereby, the steering lock device 10 as a whole can be reduced in size and thickness. In addition, the housing recess 28e of the output gear 28 in which the stopper body 30 and the damper 32 are housed can be set at a wide angle, and the damper 32 having a sufficient volume (circumferential length) can be used. Is possible. In other words, the shock absorbing damper structure can be realized in the accommodating recess 28e in the small space of the output gear 28 while ensuring the operating angle of each stopper 31 and the capacity of the damper 32 of the stopper body 30.

  Furthermore, as shown in FIG. 13, the labyrinth protrusion 12 c extending so as to surround the peripheral wall 28 f of the housing recess 28 e of the output gear 28 is formed integrally and annularly on the inner surface 12 a of the cover 12. Even if the thick portion 32b of the made damper 32 is damaged due to impact, deterioration, fatigue, or the like, it is possible to reliably prevent the damaged portion from being scattered from the labyrinth protrusion 12c to the outer reduction gear 26 or the like. . As a result, the damaged portion of the thick portion 32b of the damper 32 does not adversely affect the rotation of the reduction gear 26 or the like. Even if the rubber damper 32 is damaged, it can be reliably held between the stopper body 30 in the housing recess 28e of the output gear 28 and the stoppers 13 on the inner surface 12a of the cover 12.

  Further, the cam portion 28c is formed integrally with the gear main body portion 28a of the output gear 28 that houses the stopper body 30 that reliably stops the rotation of the output gear 28 and the output shaft 20 by each stopper 31. Can be reliably prevented from over the operating lever portion 35a of the limit switch 35, and the limit switch 35 can be reliably turned on or off by the cam portion 28c.

  In addition, according to the said Example 1, although the elastic member was made into the thermoplastic elastomer resin material, you may use other members, such as a rubber material. Further, although the rubber O-ring is used as the vibration isolating member, it is not limited to this. Furthermore, rubber dampers are attached to the four stoppers of the cover, and the opposing thick parts of the damper are pressed by the two opposing stoppers of the four stoppers of the stopper body. However, as a matter of course, the first embodiment can be applied to an example in which the four stoppers of the stopper body are brought into direct contact with and locked to the four stoppers of the cover without mounting the damper.

It is a disassembled perspective view of the steering lock device of Example 1 of the present invention. It is a top view of the steering lock device. It is a bottom view of the steering lock device. It is the perspective view which looked at the above-mentioned steering lock device from the bottom side. It is a rear view of the steering lock device. It is a top view in the case of the steering lock device. It is sectional drawing which follows the XX line in FIG. It is a side view of the motor used for the above-mentioned steering lock device. It is a top view of the said motor. (A) is a rear view of the cylindrical elastic member with which the said motor is mounted | worn, (b) is a side view of the elastic member, (c) is a top view of the elastic member. (A) is an enlarged sectional view showing a terminal connection portion of the motor, (b) is an enlarged sectional view showing a state where a terminal is connected to the terminal connection portion, and (c) is a portion of the motor in a state where the terminal is connected. It is a top view. It is sectional drawing which follows the YY line in FIG. It is an expanded sectional view of the Z part in FIG. (A) is explanatory drawing which shows the relationship between the output shaft used for the said steering lock apparatus, a stopper body, a damper, and the stopper of a cover, (b) is sectional drawing which follows the PP line in the same (a) figure. (A) is sectional drawing of the front-end | tip part of the said output shaft, (b) is a side view of the front-end | tip part of the same output shaft. (A) is a top view of the said stopper body, (b) is sectional drawing which follows the QQ line in the (a) figure. (A) is a top view of the said damper, (b) is sectional drawing of the same damper. (A) is a bottom view of the principal part of the said cover, (b) is sectional drawing which follows the RR line | wire in the same (a) figure. (A) is a side view of the lower end part of the said output shaft, (b) is a bottom view of the lower end part of the same output shaft. (A) is explanatory drawing which shows the state which the said output shaft rotated the predetermined angle, (b) is explanatory drawing which shows the state just before ON operation of one limit switch in the same state. (A) is explanatory drawing which shows the state before the projection part of the said output shaft contacts the latching convex part of a stopper body, (b) is explanatory drawing which shows the ON state of one limit switch in the same state. (A) is explanatory drawing which shows the state which pushes the latching convex part of a stopper body with the projection part of the said output shaft, (b) is explanatory drawing which shows the operation state of one limit switch in the same state. (A) is explanatory drawing which shows the state which pushes the thick part of a damper between the stoppers of a cover by rotation of the said stopper body, (b) is explanatory drawing which shows the operation state of one limit switch in the same state. . (A) is explanatory drawing which shows the state which bent the thick part of the damper between the stopper of the said stopper body, and the stopper of a cover, (b) is explanatory drawing which shows the operation state of one limit switch in the same state It is.

Explanation of symbols

10 Steering lock device (actuator device)
DESCRIPTION OF SYMBOLS 11 Case 11a Motor accommodating part 11b Gear accommodating part 12 Cover 12a Inner surface 12c Protrusion part for labyrinth 13 Stopper 20 Motor 21 Armature shaft (drive shaft)
26 Reduction gear 28 Output gear 28d Upper surface 28e Housing recess 29 Output shaft 29c Protrusion 30 Stopper body 30a Cylindrical portion 30b Inner peripheral surface 30c Locking projection 30d Upper surface 31 Stopper 32 Damper 32b Thick part 40 Output cam (output member)

Claims (3)

A case having a cover that covers the motor housing and the gear housing, a motor housed in the motor housing of the case, a reduction gear that is rotatably housed in the gear housing of the case, and is driven by the drive shaft of the motor An output gear that is rotationally driven through the output case, an output shaft that is rotatably supported by the case and rotates together with the output gear, and an output member that is attached to the output shaft, and rotates a stopper body on the output shaft. The actuator device is provided with a stopper that is freely attached and provided with a stopper that restricts the rotation range of the output gear by locking the stopper body to the inner surface of the cover,
An accommodation recess for accommodating the stopper body is formed on the upper surface of the output gear, and a projection is formed on the output shaft facing the accommodation recess, and the stopper body is engaged with and separated from the projection of the output shaft. An engaging projection and at least a pair of stoppers, and at least a pair of stoppers for restricting the rotation range of the output gear by abutting and locking the stoppers of the stopper body on the inner surface of the cover, and An actuator device comprising a damper interposed between the stopper body and each stopper on the inner surface of the cover. The actuator device according to claim 1,
The stopper body is formed in a substantially disk shape having a cylindrical portion at the center thereof, and the locking projection is integrally formed on the inner peripheral surface of the cylindrical portion of the stopper body, and the stopper body is formed on the upper surface of the stopper body. At least a pair of stoppers are integrally formed and the damper is formed in an annular shape, and a thick portion is formed between each stopper of the stopper body of the annular damper and each stopper on the inner surface of the cover. An actuator device characterized by being formed. The actuator device according to claim 1,
An actuator device characterized in that a labyrinth projecting portion extending to surround a peripheral wall of a housing recess of the output gear is formed in an annular shape outside each stopper on the inner surface of the cover.

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