JP2018020583A - Steering lock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a steering lock device which achieves excellent anti-theft performance while maintaining strength of a frame.SOLUTION: In a steering lock device, an auxiliary lock part 80 has: a lock pin housing hole 17 which is opened at an outer surface part of a frame 10 and intersects with a lock rod housing hole 12 while extending in the frame 10; and a lock pin 81 which is disposed in the lock pin housing hole 17 and is configured to slide between an engagement position in which the lock pin 81 engages with the lock rod 20 to retain the lock rod 20 in a lock position and a non-engagement position in which the lock pin 81 does not engage with the lock rod 20. In the lock pin housing hole 17, at least one part of an opening appearing at an upper frame outer surface part 10b of the frame 10 is closed by a fixer bolt 40.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a steering lock device.

  2. Description of the Related Art Conventionally, a steering lock device that locks a steering shaft to prevent the vehicle from being stolen while the vehicle is parked is known. The steering lock device includes a frame and a fixer plate, and a steering jacket that includes a steering shaft is sandwiched between the frame and the fixer plate, and the fixer plate is fixed to the frame by a fixer bolt. Fixed.

  The frame includes a jacket contact surface that contacts the outer peripheral surface of the steering jacket. A lock member accommodation hole is opened in the jacket contact surface, and the lock member is slidably disposed in the lock member accommodation hole. When the lock member moves to the lock position, the tip side protrudes from the jacket contact surface and engages with the steering shaft. By this engagement, the steering shaft is locked.

  For example, Patent Document 1 discloses a configuration in which when a key is removed at a lock position, the lock shaft is pushed by a spring and protrudes upward to lock the steering shaft. Further, this Patent Document 1 includes a lock pin inserted from the outer surface of the cylinder outer to prevent the cylinder lock from being removed from the body by unauthorized means. It is further disclosed that the metal reinforcing plate is fastened and fixed with a one-way screw so as to cover the engagement hole with which the end portion is engaged.

  For example, Patent Document 2 discloses a configuration in which one of a plurality of flanges of the bracket covers a safety device that locks the lock member at the steering shaft lock position, thereby eliminating the influence from the outside. . Further, for example, in Patent Document 3, a switch case is fixed to a frame with a screw through an attachment hole, a fixer frame is disposed so as to cover the attachment hole, and the fixer frame is fixed to the frame with a fixer bolt. A fixing method is disclosed.

JP 2001-207705 A Japanese Patent Laid-Open No. 7-32773 Japanese Utility Model Publication No. 58-99158

  By the way, in the conventional steering lock device, in order to prevent the lock member from being moved from the lock position due to an unauthorized action, a lock member that restricts the movement of the lock member by engaging with the lock member at the lock position is provided. The configuration is known. The restricting member is slidably disposed in the restricting member accommodating hole by providing a restricting member accommodating hole opening on the jacket contact surface of the frame. This method has an aspect that in the state where the frame is assembled to the steering jacket, the opening of the restricting member accommodation hole is covered by the presence of the steering jacket, so that the anti-theft property is excellent and the assembling property is also excellent.

  However, there is a problem that the strength of the frame itself is lowered by providing the opening on the jacket contact surface. Therefore, when a large rotational force is applied to the steering shaft and a large force is applied to the lock member, the frame may be damaged.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a steering lock device that is excellent in the anti-theft property while maintaining the strength of the frame.

  In order to solve such a problem, the present invention provides a steering lock device fixed to a steering jacket in a state where a cylindrical steering jacket including a steering shaft is sandwiched between a frame and a fixer plate. This steering lock device is screwed into a bolt hole that opens to the outer surface of the frame, and is opened to a fixer bolt that fixes the fixer plate to the frame, and a jacket contact surface that contacts the outer peripheral surface of the steering jacket in the frame. A lock member accommodating hole extending inside the lock member, and a lock disposed in the lock member accommodating hole and configured to be slidable between a lock position for locking the steering shaft and an unlock position for unlocking the steering shaft A member, and an auxiliary lock portion that holds the lock member in the lock position in a state where the lock member is in the lock position. In this case, the auxiliary lock portion is opened in the outer surface portion of the frame and is disposed in the restriction member accommodation hole that extends inside the frame and intersects the lock member accommodation hole, and in the restriction member accommodation hole. A restricting member configured to be slidable between an engaging position that holds the lock member in the locked position by engaging and a non-engaged position that does not engage with the lock member. In the accommodation hole, at least a part of the opening that appears on the outer surface portion of the frame is closed by a fixer bolt.

  Here, in the present invention, the fixer bolt sandwiches the fixer plate between the outer surface portion of the frame, and the restricting member receiving hole has at least a part of the opening appearing on the outer surface portion of the frame via the fixer plate. Therefore, it is preferably closed with a fixer bolt.

  In the present invention, the auxiliary lock portion can be inserted into and removed from the urging means for urging the restriction member from the non-engagement position side to the engagement position side and the trigger hole communicating with the restriction member accommodation hole. And a trigger that holds the restricting member in the non-engagement position. The trigger is detached from the trigger hole when the frame cover assembled to the frame is dropped, and the restricting member is engaged. It is preferable to allow movement to a position.

  ADVANTAGE OF THE INVENTION According to this invention, the steering lock apparatus which is excellent also in anti-theft property, maintaining the intensity | strength of a flame | frame can be provided.

The front view which shows typically the steering lock apparatus which concerns on this embodiment FIG. 1 is a plan view of the steering lock device with the fixture plate removed from the direction of arrow A in FIG. The top view which shows the steering lock apparatus shown in FIG. 1 from A arrow direction Sectional drawing which follows the BB line of the steering lock device shown in FIG. Sectional drawing which follows CC line of the steering lock device shown in FIG. Sectional drawing which follows the DD line of the steering lock device shown in FIG. Explanatory drawing of upper fixer bolt and dropout prevention means Explanatory drawing of upper fixer bolt and dropout prevention means Explanatory drawing which shows operation | movement of a steering lock apparatus in the state from which the frame cover fell off from the steering lock apparatus Explanatory drawing which shows operation | movement of a steering lock apparatus in the state from which the frame cover fell off from the steering lock apparatus Explanatory drawing which shows operation | movement of a steering lock apparatus in the state from which the frame cover fell off from the steering lock apparatus

  Hereinafter, the steering lock device 1 according to the present embodiment will be described. Here, FIG. 1 is a front view schematically showing the steering lock device 1 according to the present embodiment. FIG. 2 is a plan view showing the steering lock device 1 with the fixer plate 30 removed from the direction of arrow A in FIG. FIG. 3 is a plan view showing the steering lock device 1 shown in FIG. 4 is a cross-sectional view taken along line BB of the steering lock device 1 shown in FIG. FIG. 5 is a cross-sectional view taken along line CC of the steering lock device 1 shown in FIG. FIG. 6 is a cross-sectional view taken along line DD of the steering lock device 1 shown in FIG.

  The steering lock device 1 is, for example, an electric steering lock device, and includes a frame 10, a lock rod 20, a fixer plate 30, a fixer bolt 40, an electric motor 60, a control board 70, and an auxiliary lock unit 80. Consists of the subject. The steering lock device 1 is fixed to the steering jacket 100 by fixing the fixer plate 30 to the frame 10 with the fixer bolt 40 in a state where the steering jacket 100 is sandwiched between the frame 10 and the fixer plate 30.

  The steering jacket 100 has a cylindrical shape, and supports a steering shaft 101 in a rotatable manner. The steering jacket 100 is provided with a rectangular locking hole 102 so that a lock rod 20 described later can be engaged with the steering shaft 101 from the outside through the locking hole 102. On the outer peripheral surface of the steering shaft 101, engagement grooves extending along the axial direction are formed at predetermined intervals in the circumferential direction.

  The frame 10 is formed into a required shape using, for example, zinc die casting, and the frame 10 is provided with a semi-cylindrical jacket contact surface 11 corresponding to the outer peripheral shape of the steering jacket 100. The jacket contact surface 11 contacts the outer peripheral surface of the steering jacket 100 in a state where the frame 10 is assembled to the steering jacket 100.

  The frame 10 is provided with a lock rod receiving hole 12 that is open at the front end side to the jacket contact surface 11 and is formed in a cylindrical shape inside the frame 10.

  Around the lock rod housing hole 12 on the jacket abutting surface 11, an engagement protrusion 13 is formed that rises in a trapezoidal shape toward the steering shaft 101. This engagement protrusion 13 also functions as a part of the jacket contact surface 11. The engaging protrusion 13 is fitted into the locking hole 102 of the steering jacket 100 in a state where the frame 10 is fixed to the steering jacket 100. For this reason, even if an excessive force is applied to the frame 10, it is possible to suppress the frame 10 from being displaced from the attached position.

  A lock rod 20 is accommodated in the lock rod accommodation hole 12. The lock rod 20 is a quadrangular columnar member made of a hard material. The lock rod 20 is configured to be slidable along the longitudinal direction of the lock rod 20 while being accommodated in the lock rod accommodation hole 12. The lock rod 20 is driven by the power of the electric motor 60 that is a drive means, and slides between a lock position and a lock release position.

  When the lock rod 20 is in the locked position, the tip of the lock rod 20 (rod tip 21) protrudes from the jacket contact surface 11 (engagement projection 13). In this case, the rod tip 21 engages with the steering shaft 101 and restricts the rotation of the steering shaft 101. On the other hand, when the lock rod 20 is in the unlocked position, the rod tip 21 is accommodated in the frame 10 (lock rod accommodation hole 12). In this case, the lock rod 20 does not engage with the steering shaft 101, and the steering shaft 101 rotates freely.

  A frame cover 15 is attached to the frame 10. The frame cover 15 has a box shape in which one surface (the left side surface in FIG. 1) is open, and an opening 15 a provided at the opening end of the frame cover 15 and a locking portion 10 a provided at the periphery of the frame 10. Is engaged with the frame 10.

  The frame cover 15 forms an accommodation space therein. Housed in the frame cover 15 are an electric motor 60 and a control board 70 that provide power for displacing the lock rod 20. The electric motor 60 transmits power to the lock rod 20 via a power transmission mechanism (not shown) such as a gear, and drives the lock rod 20. The control board 70 supplies electric power to the electric motor 60 and controls normal rotation, reverse rotation, and stop of the electric motor 60.

  The frame 10 is provided with two bolt holes into which the fixer bolt 40 is screwed.

  When the frame 10 is assembled to the steering jacket 100, an upper bolt hole 14a, which is one bolt hole, is formed on the outer surface portion of the frame 10 facing the vehicle upper side of the frame 10 (hereinafter referred to as "upper frame outer surface portion 10b"). Is provided so as to intersect (for example, orthogonally cross) the lock rod housing hole 12. Further, a side bolt hole (not shown) which is the other bolt hole is formed in an outer surface portion of the frame 10 (hereinafter referred to as “side frame outer surface portion 10 c”) which is located below the frame 10 and faces in the vehicle lateral direction. ) Is provided so as to be substantially parallel to the lock rod receiving hole 12.

  The fixer plate 30 is a member that is provided to face the frame 10 with the steering jacket 100 interposed therebetween, and is a member that attaches the frame 10 to the steering jacket 100 using the fixer bolt 40. The fixer plate 30 includes a strip-shaped plate base 31 that is curved in an arc shape, and an upper seat surface portion 32 and a side seat surface portion 33 provided at both ends of the plate base 31.

  The upper seat surface portion 32 is connected to one end portion of the plate base portion 31, and is provided in a planar shape along the tangential direction from the end portion of the plate base portion 31. In a state where the fixer plate 30 is attached to the frame 10, the upper seat surface portion 32 abuts on the upper frame outer surface portion 10 b. The upper seat surface portion 32 is formed with an insertion hole for inserting the fixer bolt 40 screwed into the upper bolt hole 14a.

  The side seat surface portion 33 is connected to the other end portion of the plate base portion 31, and is raised from the end portion of the plate base portion 31 in the normal direction. In a state where the fixer plate 30 is attached to the frame 10, the side seat surface portion 33 abuts on the side frame outer surface portion 10c. The side seat surface portion 33 is formed with an insertion hole for inserting the fixer bolt 40 screwed into the side bolt hole.

  Thus, the upper seat surface portion 32 and the side seat surface portion 33 are set to form an angle of 90 degrees with each other.

  The fixer bolt 40 includes a fixer bolt assembled in the upper bolt hole 14a (hereinafter referred to as “upper fixer bolt 40a”) and a fixer bolt assembled in the side bolt hole (hereinafter referred to as “side fixer bolt 40b”), and each bolt 40a, 40b. The shape is different.

  7 and 8 are explanatory diagrams of the upper fixer bolt 40a and the drop-off preventing means. The upper fixer bolt 40 a is configured by a shaft portion 41 and a head portion 46 provided continuously to the proximal end side of the shaft portion 41. The shaft portion 41 is formed with a screw portion 42 having a screw thread formed on the distal end side in the insertion direction, and a locking portion 43 positioned between the screw portion 42 and the head portion 46. The locking portion 43 includes an annular portion having a larger diameter than the screw portion 42 and a small diameter portion having a smaller diameter than the annular portion.

  The head portion 46 is positioned on the rear end (base end) side of the shaft portion 41 in the insertion direction, and includes a mounting seat 47 and a tightening portion 48. The mounting seat 47 sandwiches the fixer plate 30 (upper seat surface portion 32) between the frame 10 and the fixer bolt 40 when screwed into the frame 10. The tightening portion 48 is connected to the rear end portion of the mounting seat 47, and a tool is fitted when the fixer bolt 40 is screwed together. The tightening portion 48 receives the tightening torque from the tool and rotates to the mounting seat 47 and the shaft portion 41. Transmit power. The tightening portion 48 is configured such that when a tightening torque of a predetermined value or more is applied, the connecting portion with the mounting seat 47 is sheared and broken.

  As for the side part fixer bolt 40b, all the axial parts 41 are comprised by the thread part 42, and the head 46 is a shape similar to the top fixer bolt 40a.

  The upper fixer bolt 40 a is screwed into the upper bolt hole 14 a through the insertion hole of the upper seat surface portion 32 of the fixer plate 30, while the side fixer bolt 40 b is inserted into the side seat surface portion 33 of the fixer plate 30. It is screwed into the side bolt hole through the hole. The fixer plate 30 is fastened to the frame 10 by these bolts 40a and 40b. As a result, the steering jacket 100 is sandwiched between the fixer plate 30 and the frame 10, and the frame 10 is attached to the steering jacket 100.

  As described above, similarly to the relationship between the upper seat surface portion 32 and the side seat surface portion 33, the upper fixer bolt 40a and the side fixer bolt 40b are set to form an angle of 90 degrees with each other.

  The frame 10 is provided with a slide hole 16 whose front end opens to the jacket contact surface 11. The slide hole 16 extends so as to be orthogonal to the upper bolt hole 14a and parallel to the side bolt hole, and the inner end thereof communicates with the upper bolt hole 14a. The slide hole 16 has a stepped shape with a wide opening side and a narrow part (part on the back end side) communicating with the upper bolt hole 14a.

  In the slide hole 16, an engagement slider 51 and a winding spring 56 are arranged in this order from the back side to the opening side.

  The engagement slider 51 is formed in a substantially L-shaped cross section including a short side portion and a long side portion. An engaging claw is provided at the distal end portion of the short side portion, and a slope formed obliquely with respect to a direction in which the upper fixer bolt 40a is screwed is formed on the upper surface side of the engaging claw. The long side portion functions as a pressure receiving surface whose back side receives the urging force of the winding spring 56.

  The opening side of the slide hole 16 is closed by a closing lid 57. The closing lid 57 is fitted so as not to drop off from the opening side of the slide hole 16 due to the reaction force of the winding spring 56. Thereby, the engagement slider 51 is urged toward the back side of the slide hole 16 by the reaction force of the winding spring 56. However, when the frame 10 is attached to the steering jacket 100, the opening side of the slide hole 16 is closed by the outer peripheral surface of the steering jacket 100. For this reason, even if the closing lid 57 is likely to come off, the falling off of the closing lid 57 is suppressed.

  In such a configuration, the engaging claw of the engaging slider 51 and the locking portion 43 of the fixer bolt 40 function as a drop-off preventing means. That is, when the upper fixer bolt 40a is assembled, the engagement claw and the locking portion 43 are engaged, thereby restricting the extraction of the fixer bolt 40.

  The auxiliary lock part 80 locks the sliding movement of the lock rod 20 so that the lock rod 20 existing at the lock position maintains the lock position. The auxiliary lock portion 80 includes the lock pin accommodation hole 17, a lock pin 81, an urging means 82, and a trigger 83.

  The frame 10 is provided with a lock pin accommodating hole 17 formed in a cylindrical shape inside the frame 10, the front end side being opened to the upper frame outer surface portion 10 b. The lock pin accommodation hole 17 extends in parallel with the upper bolt hole 14 a and intersects the lock rod accommodation hole 12. The lock pin accommodating hole 17 accommodates the biasing means 82 and the lock pin 81 in this order from the back side to the opening side.

  The lock pin 81 is a quadrangular columnar or columnar member having a longitudinal shape along the extending direction of the lock pin accommodating hole 17, and is not engaged with the engagement position along the extending direction of the lock pin accommodating hole 17. It is arranged to be movable between positions. The lock pin 81 engages with the lock pin receiving groove 22 formed in the lock rod 20 located at the lock position in the state located at the engagement position. By this engagement, the movement of the lock rod 20 located at the lock position from the lock position is restricted. On the other hand, the lock pin 81 is separated from the lock rod 20 in a state of being in the non-engagement position. Thereby, the lock rod 20 can be moved between the locked position and the unlocked position.

  The urging means 82 urges the lock pin 81 from the non-engagement position side to the engagement position side, and is constituted by a winding spring, for example. The urging means 82 is compressed between the lock pin 81 and the back end of the lock pin accommodating hole 17 in a state where the lock pin 81 is in the non-engagement position.

  The trigger 83 holds the lock pin 81 in the non-engagement position, and allows the lock pin 81 to move to the engagement position when the frame cover 15 is detached from the frame 10.

  The trigger 83 includes a flat trigger body 84 formed in a crank shape, and a trigger urging means 85 including a winding spring. Normally, the trigger urging means 85 is held in a compressed state by abutting against an L-shaped stepped portion 84 a formed at the center of the trigger main body 84. The distal end side of the trigger main body 84 is inserted into the trigger hole 18 communicating with the lock pin housing hole 17 so as to be detachable. Further, the rear end side of the trigger main body 84 is in contact with the inner surface of the frame cover 15 by the compression reaction force of the trigger urging means 85. The tip of the trigger body 84 projects into the lock pin housing hole 17 and engages with the lock pin 81. Due to this engaged state, the lock pin 81 is held in the non-engaged position.

  As one of the features of this embodiment, the lock pin accommodation hole 17 is set so that the opening portion that appears in the upper frame outer surface portion 10b overlaps the upper fixer bolt 40a. Therefore, the lock pin housing hole 17 is in a state in which at least a part of the opening appearing in the upper frame outer surface portion 10b is closed by the upper fixer bolt 40a. In particular, in the present embodiment, the upper fixer bolt 40a sandwiches the upper seat surface portion 32 of the fixer plate 30 between the upper frame outer surface portion 10b. For this reason, the opening side of the lock pin accommodation hole 17 is in a state covered with the upper fixer bolt 40 a via the upper seat surface portion 32 of the fixer plate 30. Thereby, since a part of opening of the lock pin accommodation hole 17 is shielded, an illegal act of pulling out the lock pin 81 from the outside can be suppressed.

  Note that the opening side of the lock pin housing hole 17 does not need to be entirely covered by the upper fixer bolt 40a, and at least a part of the opening may be covered so that the lock pin 81 is not pulled out.

  Next, a procedure for assembling the steering lock device 1 will be described.

  First, the urging means 82 and the lock pin 81 are sequentially inserted into the lock pin housing hole 17 from the opening side, and the lock pin 81 is removed while countering the reaction force of the urging means 82 using a tapered tool or the like. Push to the engagement position. Next, the trigger 83 is inserted into the trigger hole 18, and the tip of the trigger body 84 is engaged with the lock pin 81, thereby holding the lock pin 81 in the non-engagement position. When the trigger 83 is inserted into the trigger hole 18, the trigger urging means 85 is disposed in the stepped portion 84a, and the trigger urging means 85 is held in a compressed state. The frame cover 15 is attached to the frame 10, and the rear end side of the trigger body 84 is pressed by the inner surface of the frame cover 15.

  Next, the engagement slider 51 and the winding spring 56 are sequentially inserted into the slide hole 16 from the opening side, and the opening of the slide hole 16 is closed with the closing lid 57.

  Finally, the frame 10 is assembled to the steering jacket 100 by the fixer plate 30 and the fixer bolt 40. First, the jacket abutting surface 11 of the frame 10 is brought into close contact with the outer peripheral surface of the steering jacket 100 while the engaging protrusion 13 of the frame 10 is fitted into the locking hole 102 of the steering jacket 100. On the other hand, the fixer plate 30 is arranged from the opposite side of the steering jacket 100, and the insertion holes of the upper seat surface portion 32 and the side seat surface portion 33 are aligned with the upper bolt holes 14a and the side bolt holes (not shown). Then, the upper fixer bolt 40a and the side fixer bolt 40b are screwed into the upper bolt hole 14a and the side bolt hole, respectively.

  Until the mounting seat 47 of the upper fixture bolt 40a and the side fixer bolt 40b sandwiches the fixture plate 30 (upper seat surface portion 32, side seat surface portion 33) with the outer surface portion of the frame 10, the upper fixer bolt 40a and the side portion. Tighten the fixer bolt 40b. When the upper fixer bolt 40a and the side fixer bolt 40b reach the back side of the upper bolt hole 14a and the side bolt hole, a tightening torque of a predetermined value or more is applied to the tightening portion 48 to break the tightening portion 48. . As a result, the upper fixer bolt 40a and the side fixer bolt 40b are rotated in the reverse direction and cannot be pulled out from the upper bolt hole 14a and the side bolt hole.

  At this time, when the upper fixer bolt 40a assembled in the upper bolt hole 14a is screwed, the locking portion 43 comes into contact with the engaging claw of the engaging slider 51 and resists the urging reaction force of the winding spring 56. Then, the engagement slider 51 is slid in the engagement release direction. When the upper fixer bolt 40 a is further screwed in, the engaging claw engages with the locking portion 43. For this reason, even if the upper fixer bolt 40a is reversely rotated, it cannot be easily pulled out.

  The steering lock device 1 is attached to the steering jacket 100 through a series of steps as described above.

  Next, the operation of the steering lock device 1 according to this embodiment will be described.

  First, in a state where the lock rod 20 is held at the lock position, the rod tip portion 21 of the lock rod 20 protrudes from the engagement protrusion 13. As a result, the rod tip 21 engages with the engagement groove of the steering shaft 101, and the rotation of the steering shaft 101 is restricted.

  When an unlock signal is input from the vehicle body side to the steering lock device 1 in the locked state, the control board 70 supplies power so that the electric motor 60 rotates normally. When the electric motor 60 rotates forward, power from the electric motor 60 is transmitted, and the lock rod 20 moves from the lock position to the lock release position.

  When the lock rod 20 moves to the unlock position, the power from the control board 70 to the electric motor 60 is stopped, and the electric motor 60 is stopped. As a result, the lock rod 20 is held at the unlocked position.

  The lock rod 20 in the unlocked state is drawn into the lock rod housing hole 12. Therefore, the engagement between the rod tip 21 and the engagement groove of the steering shaft 101 is released, and the steering shaft 101 can be rotated.

  Next, when a lock signal is input to the steering lock device 1 in the unlocked state from the vehicle body side via the control board 70, the control board 70 supplies electric power so that the electric motor 60 is reversed. Then, when the electric motor 60 is reversed, the power from the electric motor 60 is transmitted, and the lock rod 20 moves from the unlocked position to the locked position.

  When the lock rod 20 is displaced to the lock position, power from the control board 70 to the electric motor 60 is stopped, and the electric motor 60 is stopped. The lock rod 20 is held at the lock position. When the lock rod 20 is held in the locked position, the rod tip 21 engages with the engagement groove of the steering shaft 101, and the rotation of the steering shaft is restricted.

  Next, a case where an external force acts on the steering lock device 1 due to an illegal act or the like and the frame cover 15 falls off the frame 10 will be described. Here, FIGS. 9 to 11 are explanatory views showing the operation of the steering lock device 1 in a state where the frame cover 15 is detached from the steering lock device 1, and correspond to FIGS. 4 to 6. FIG.

  When the frame cover 15 is dropped, the restriction on the rear end side of the trigger body 84 is lost. Therefore, the trigger body 84 is detached from the trigger hole 18 by the compression reaction force of the trigger urging means 85. Thereby, the engagement between the trigger main body 84 and the lock pin 81 is released, and the lock pin 81 moves to the engagement position by the urging force of the urging means 82. At this time, when the lock rod 20 is located at the lock position, the end of the lock pin 81 engages with the lock pin receiving groove 22 of the lock rod 20. The lock rod 20 is held in the locked position by the engagement between the lock pin 81 and the lock rod 20.

  With the configuration described above, the lock rod 20 can be held in the locked position by operating the auxiliary lock unit 80 against an illegal act of attempting to remove the frame cover 15 from the frame 10.

  Thus, in the steering lock device 1 according to the present embodiment, at least a part of the opening that appears in the upper frame outer surface portion 10 b of the frame 10 in the lock pin accommodation hole 17 is closed by the fixer bolt 40.

  According to this configuration, since the opening side of the lock pin accommodating hole 17 is closed by the fixer bolt 40, a situation in which the lock pin 81 is pulled out can be suppressed. Thereby, it can suppress effectively that the lock rod 20 is cancelled | released from a locked position.

  Further, according to the present embodiment, since the lock pin accommodating hole 17 is provided in the outer surface portion (upper frame outer surface portion 10b) of the frame 10, it is necessary to provide an opening for the lock pin 81 in the jacket contact surface 11. Absent. For this reason, the strength reduction of the frame 10 can be suppressed.

  Therefore, it is possible to provide the steering lock device 1 that is excellent in the anti-theft property while maintaining the strength of the frame 10.

  In the present embodiment, the fixer bolt 40 is inserted into an insertion hole provided on one end side (upper seat surface portion 32) of the fixer plate 30, and is an upper bolt hole orthogonal to the lock rod accommodation hole 12. 14a, the upper fixer bolt 40a to be screwed, and the side portion that is inserted into the insertion hole provided on the other end side (side seating surface portion 33) of the fixer plate 30 and is parallel to the lock rod housing hole 12. And side fixer bolts 40b screwed into the bolt holes (second bolt holes). In this case, at least a part of the opening appearing in the upper frame outer surface portion 10b of the lock pin accommodation hole 17 is closed by the upper fixer bolt 40a.

  According to this configuration, the upper fixer bolt 40 a and the side fixer bolt 40 b are orthogonal to each other, and the upper fixer bolt 40 a is orthogonal to the lock rod housing hole 12. For this reason, the opening side of the lock pin accommodation hole 17 which appears in the upper frame outer surface part 10b can be appropriately closed by the upper fixer bolt 40a. Thereby, the situation where the lock pin 81 is pulled out can be suppressed.

  In the present embodiment, the fixer plate 30 is fixed to the frame 10 by two-point fastening using the upper fixer bolt 40a and the side fixer bolt 40b. As described above, since it is necessary to close the opening side of the lock pin accommodating hole 17 with the upper fixer bolt 40a, one end portion side of the fixer plate 30 is fastened with the fixer bolt 40 (upper fixer bolt 40a). The other end of the fixer plate 30 may have a structure other than fastening with the side fixer bolt 40b, for example, a structure simply connected to the frame 10. As an example, a pin is disposed on the outer surface portion of the frame 10 so as to be parallel to the lock rod receiving hole 12, and the end of the opposite side of the fixer plate 30 is pivotally supported by this pin, whereby 30 and the opposite end of the frame 30 and the frame 10 are connected by a hinge structure.

  Further, in the present embodiment, the upper fixer bolt 40 a holds the fixer plate 30 between the upper frame outer surface portion 10 b and at least a part of the opening side of the lock pin accommodation hole 17 is interposed via the fixer plate 30. The upper fixer bolt 40a is closed.

  According to this configuration, since the periphery of the upper fixer bolt 40a is covered by the fixer plate 30 (upper seat surface portion 32), the opening side of the lock pin accommodating hole 17 can be closed in a wider range. For this reason, in order to expose the opening side of the lock pin accommodation hole 17, it is necessary to lift up the fixer plate 30, and the situation where the lock pin 81 is pulled out can be suppressed. Even if the fixer plate 30 is lifted, at least a part of the opening side of the lock pin accommodating hole 17 is blocked by the upper fixer bolt 40a, so that the situation where the lock pin 81 is pulled out can be suppressed. it can.

  Further, in the present embodiment, the upper fixer bolt 40a is composed of a shaft portion 41 having a thread formed on the distal end side, and a head portion 46 provided continuously to the proximal end side of the shaft portion 41. The portion 46 is connected to the mounting seat 47 that holds the fixture plate 30 between the upper frame outer surface portion 10b and the rear end portion of the mounting seat 47, and the tool is fitted when the upper fixer bolt 40a is screwed together. And a tightening portion 48 to be operated. The tightening portion 48 is configured to be sheared and broken at a connection portion with the mounting seat 47 when a tightening torque of a predetermined value or more is applied by a tool.

  According to this configuration, the fastening portion 48 can be broken after the fixer plate 30 is fastened by the upper fixer bolt 40a. Thereby, once screwed, it is impossible to remove the upper fixer bolt 40a even if a tool is used. By closing the opening side of the lock pin accommodation hole 17 with such an upper fixer bolt 40a, a situation in which the lock pin 81 is pulled out can be suppressed.

  In the present embodiment, the auxiliary lock portion 80 includes a biasing means 82 that biases the lock pin 81 from the non-engagement position side toward the engagement position side, and the trigger hole 18 that communicates with the lock pin accommodation hole 17. And a trigger 83 that holds the lock pin 81 in the non-engagement position. In this case, the trigger 83 is detached from the trigger hole 18 when the frame cover 15 assembled to the frame 10 is dropped, and allows the lock pin 81 to move to the engagement position.

  According to this configuration, the lock pin 81 can be moved to the engagement position in response to an unauthorized action such as removal of the frame cover 15. Thereby, the lock rod 20 can be reliably held in the locked position.

  In the above-described embodiment, the urging means 82 is disposed on the back side of the lock pin housing hole 17 and the lock pin 81 is disposed on the opening side thereof, but these relations are reversed. Also good. However, in the latter case, it is necessary to fit a temporary fixing member for restricting the urging means 82 from dropping from the lock pin accommodation hole 17 into the lock pin accommodation hole 17 at the time of assembly.

  Moreover, in this embodiment, the lock pin accommodation hole 17 is provided independently of the upper bolt hole 14a. However, a hole may be communicated with the back end side of the upper bolt hole 14 a and the upper bolt hole 14 a may be shared as the lock pin accommodation hole 17.

  As mentioned above, although the steering lock device concerning this embodiment was explained, it cannot be overemphasized that a various deformation | transformation is possible for this invention within the range of the invention, without being limited to embodiment mentioned above. For example, the steering lock device is not limited to the one that operates electrically, but may be a steering lock device that is interlocked with the operation of the cylinder lock accompanied by the operation of the unlocking key.

  In the present embodiment, the fixer bolt widely includes fastening members that can be tightened with a tool, and is not limited to the bolt itself.

DESCRIPTION OF SYMBOLS 1 Steering lock apparatus 10 Frame 10a Locking part 10b Upper frame outer surface part 10c Side frame outer surface part 11 Jacket contact surface 12 Lock rod accommodation hole (lock member accommodation hole)
13 Engaging protrusion 14a Upper bolt hole (first bolt hole)
15 Frame cover 16 Slide hole 17 Lock pin accommodation hole (regulation member accommodation hole)
18 Trigger hole 20 Lock rod (lock member)
21 Rod end portion 22 Lock pin receiving groove 30 Fixer plate 31 Plate base 32 Upper seat surface portion 33 Side seat surface portion 40 Fixer bolt 40a Upper fixer bolt (first fixer bolt)
40b Side Fixer Bolt (Second Fixer Bolt)
41 Shaft portion 42 Thread portion 43 Locking portion 46 Head portion 47 Mounting seat 48 Tightening portion 60 Electric motor 70 Control board 80 Auxiliary lock portion 81 Lock pin (regulating member)
82 urging means 83 trigger 84 trigger body 84a step 85 trigger urging means 100 steering jacket 101 steering shaft 102 locking hole

Claims (3)

In a steering lock device fixed to the steering jacket in a state where a cylindrical steering jacket containing a steering shaft is sandwiched between a frame and a fixer plate,
A fixer bolt that is screwed into a bolt hole that opens to the outer surface of the frame, and that fixes the fixer plate to the frame;
A lock member receiving hole that is opened in a jacket contact surface that contacts the outer peripheral surface of the steering jacket in the frame, and extends into the frame;
A lock member disposed in the lock member accommodation hole and configured to be slidable between a lock position for locking the steering shaft and an unlock position for unlocking the steering shaft;
An auxiliary lock portion for holding the lock member in the lock position in a state where the lock member is in the lock position;
The auxiliary lock part is
A regulating member accommodation hole that is opened in an outer surface portion of the frame and extends inside the frame and intersects with the lock member accommodation hole;
Between the engagement position which is arrange | positioned in the said limitation member accommodation hole, and hold | maintains the said lock member in the said lock position by engaging with the said lock member, and the non-engagement position which does not engage with the said lock member A regulating member configured to be slidable,
In the steering lock device, at least a part of an opening that appears in an outer surface portion of the frame is closed by the fixer bolt. The fixer bolt sandwiches the fixer plate between the outer surface portion of the frame,
2. The steering lock device according to claim 1, wherein at least a part of an opening that appears in the outer surface portion of the frame is closed by the fixer bolt through the fixer plate. . The auxiliary lock part is
Biasing means for biasing the regulating member from the non-engagement position side toward the engagement position side;
A trigger hole that is removably inserted into a trigger hole that communicates with the restriction member accommodation hole, and holds the restriction member in a non-engagement position;
3. The trigger according to claim 1, wherein the trigger is detached from the trigger hole when a frame cover assembled to the frame is dropped, and allows the regulation member to move to the engagement position. Steering lock device.

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