JP2010126062A - Steering lock apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a steering lock apparatus having a compact constitution and an excellent anti-theft property. <P>SOLUTION: The steering lock apparatus comprises a housing 1, a cylinder lock 2 having a cylinder outer 14 and a cylinder inner 15, and attached to one end side opening part 6 of the housing 1, a cam member 3 which is integrally reversible rotatable with the cylinder inner 15, a lock bolt 4 which is arranged in the other end side opening part 8 of the housing 1, and reciprocated between the locking position and the unlocking position of a steering shaft according to the rotational operation of the cam member 3, a holding member 28 which pierces the cam member 3, and is reciprocated along its rotary shaft, and pushed in by one end of the cylinder inner 15, and a blocking member 5 which is pressed by the holding member 28 while the cylinder lock 2 is attached to the housing 1, and held at a non-locking position not to be locked to a lock-receiving part 38 provided on the lock bolt 4, and moved to the locking position to be locked to the lock-receiving part 38 while the cylinder lock 2 is detached. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a steering lock device for locking a steering of an automobile or the like for the purpose of preventing theft.

  Conventionally, as a steering lock device, when a key cylinder is removed due to destruction or the like, a blocking member urged by a spring engages with the camshaft to prevent the rotation of the camshaft, thereby preventing theft. Is known (see, for example, Patent Document 1).

  In this type of steering lock device, the restriction lever that holds the blocking member in the non-engagement position is disposed in parallel with the camshaft, and thus there is a problem that the size of the restriction lever increases in the radial direction.

  The restricting lever and the blocking member are inserted inside the opening formed on the side surface of the body. For this reason, an opening part becomes large and the lid member to close becomes large. For this reason, a lid member becomes easy to be destroyed and there is a possibility that it may be illegally unlocked.

  Further, the blocking member is configured to engage the camshaft to prevent the rotation of the camshaft, but the lock member that locks the steering shaft is directly blocked by the locking member. is not. That is, in this steering lock device, when the lock member is directly operated using a tool or the like from the opening of the body from which the key cylinder is removed, the steering shaft may be unlocked.

Japanese Utility Model Publication No. 07-008114

  Therefore, an object of the present invention is to provide a steering lock device having a compact configuration and excellent in theft prevention.

As a means for solving the above problems, the present invention provides:
A housing;
A cylinder lock that has a cylinder outer and a cylinder inner, and is attached to an opening on one end of the housing;
A cam member disposed in the housing and capable of rotating forward and backward integrally with the cylinder inner;
A lock disposed in the opening at the other end of the housing and capable of reciprocating between a locked position for preventing the rotation of the steering shaft and an unlocked position for allowing the rotation of the steering shaft according to the rotational operation of the cam member. Bolts,
A holding member that passes through the cam member and is reciprocally movable along the axial direction of the rotating shaft of the cam member, and is capable of being pushed in by one end of the cylinder inner;
Non-locking that is disposed in the housing and is not locked to the lock receiving portion provided on the lock bolt by being pressed by the holding member in a state where a cylinder lock is attached to the opening at one end of the housing A blocking member that is held in position and moves to a locking position for locking to the locking receiving portion in a state where the cylinder lock is removed;
It is equipped with.

  With this configuration, when the cylinder lock is removed from the housing, the blocking member blocking portion is positioned at the lock bolt locking receiving portion, so that the lock bolt can be prevented from moving to the unlocked position to prevent theft. . Further, since the holding member is disposed so as to penetrate the cam member, it is possible to eliminate the useless space and to make the structure compact.

  When the cylinder lock is removed from the housing in a state where the lock bolt is located at the lock position, the blocking member is released from the pressing state by the holding member and is locked in the lock receiving portion. It is preferable that the movement member cannot be moved by the pressing by the holding member and remains in the locking position.

  With this configuration, when the cylinder lock is removed from the housing, the blocking member is released from the pressing state by the holding member and moves to the locking position. As a result, the lock bolt cannot be moved from the lock position to the unlock position. Further, since the blocking member cannot be moved by the pressing operation by the holding member, the locked state of the lock bolt cannot be released. As a result, theft can be reliably prevented.

  The blocking member includes a contact portion that contacts the holding member and a blocking portion that is locked to the locking receiving portion of the lock bolt, and moves to the side with respect to the moving direction of the holding member and the lock bolt. Thus, it is preferable that the blocking portion is detachably disposed on the lock receiving portion of the lock bolt.

  With this configuration, the blocking member is actuated via the contact portion by the movement of the holding member, and engages and disengages the blocking portion with the locking receiving portion of the lock bolt. In this way, since the blocking member can be directly engaged with the lock bolt and the movement of the lock bolt to the unlock position can be blocked with a simple structure, theft can be reliably prevented. In addition, the attachment work of the blocking member to the housing can be performed separately from other parts, and the workability can be improved.

  When the lock bolt is in the unlocked position, the blocking member is positioned at an intermediate position where the lock bolt is in contact with the side surface of the lock bolt and is prevented from engaging with the latch receiving portion. By mounting the lock, it is preferable that the lock member is moved to the non-locking position by the operating portion of the holding member pressed by the cylinder inner.

  With this configuration, the blocking member can be moved to the non-locking position by mounting the cylinder lock on the housing while the blocking member is positioned at the intermediate position by the lock bolt, and the assembly workability is excellent. can do.

  It is preferable that the holding member is configured to be in pressure contact with a cylinder inner of a cylinder lock attached to the opening on the one end side of the housing by being housed in the cam member via a spring.

  With this configuration, when the cylinder lock is removed from the housing, the holding member is moved and retracted from the contact portion of the blocking member while preventing the cylinder inner from rattling with a single spring. It becomes possible.

The housing includes a holding recess that rotatably supports the cam member, an insertion portion that extends from the holding recess and into which a part of the holding member is inserted, and the insertion portion and the other end side opening. And a holding portion having a mounting portion that is crossed from the side and into which the blocking member is inserted,
The blocking member includes an abutment portion that is inserted through an attachment portion and is positioned in the insertion portion, and a blocking portion that is positioned in the opening on the other end side.
Biasing means for biasing the blocking member toward the insertion portion;
It is preferable to further include a closing member that closes the attachment portion.

  With this configuration, the blocking member can be displaced with respect to the cylinder lock and the cam member in the rotation axis direction of the cylinder lock, and the steering lock device can be prevented from being enlarged in the radial direction due to the arrangement of the blocking member.

  The closing member is preferably maintained in a closed state by the set plate when the set plate for mounting the housing on the steering shaft side is fixed.

  With this configuration, since the removal of the closing member is blocked by the set plate, the anti-theft property can be improved.

  According to the present invention, even if the cylinder lock is removed due to destruction or the like, the blocking member directly holds the lock bolt in the locked position, so that theft by unauthorized unlocking can be reliably prevented. . Further, since the holding member is disposed inside the cam member, it is possible to eliminate the useless space and achieve a compact configuration.

  Embodiments according to the present invention will be described below with reference to the accompanying drawings. In the following description, terms indicating specific directions and positions (for example, terms including “one end”, “other end”, “upper”, “lower”, etc.) are used as necessary. Is used to facilitate understanding of the invention with reference to the drawings, and the technical scope of the present invention is not limited by the meaning of these terms.

(1. Configuration)
1 and 2 show a steering lock device according to a first embodiment of the present invention. This steering lock device is generally configured such that a cylinder lock 2, a cam member 3, a lock bolt 4, and a blocking member 5 are accommodated in a housing 1.

(1-1. Housing 1)
As shown in FIGS. 1 and 2, the housing 1 includes a first cylindrical portion (one end side opening) 6 on one end side, and a second cylinder that communicates with the first cylindrical portion 6 and extends in a direction orthogonal thereto. And a communication part (other end side opening part) 8 communicating with the first cylindrical part 6 from the other end side. The first cylindrical portion 6 accommodates the cam member 3 and the cylinder lock 2 is mounted. An ignition switch (not shown) is attached to the second tubular portion 7. In the communication part 8, a spring receiving part 8a is formed on the inner end face on the first cylindrical part 6 side, and the lock bolt 4 is slidably disposed. A portion where the first cylindrical portion 6 and the second cylindrical portion 7 intersect is a holding portion 9 that holds the cam member 3 and the blocking member 5. That is, a holding recess 10 that holds the tip of the cam member 3 is formed on the end surface of the holding portion 9 on the first tubular portion 6 side. An insertion portion 11 is formed at the center of the holding recess 10. Further, the holding portion 9 is formed with an attachment portion 12 that communicates with the insertion portion 11 from the side surface of the housing 1, and the blocking member 5 is attached through the attachment portion 12. A set plate 13 shown in FIG. 15 is fixed to the other end of the housing 1. The set plate 13 is for attaching the housing 1 to a steering column containing a steering shaft (not shown). For fixing the set plate 13, a threaded bolt 13a is used. Thereby, in the fixed state, the head of the bolt 13a falls off and becomes a state that cannot be removed. Further, the set plate 13 covers the mounting portion 12 that opens to the side surface of the housing 1, and prevents the blocking member 5 and the closing member 45 attached via the mounting portion 12 from falling off.

(1-2. Cylinder lock 2)
As shown in FIGS. 1 and 2, the cylinder lock 2 is attached to the opening on the one end side of the first cylindrical portion 6, and is rotatable inside the cylindrical cylinder outer 14 and the cylinder outer 14. A cylinder inner 15 disposed and a plurality of tumblers 16 disposed inside the cylinder inner 15 are provided.

  The cylinder outer 14 is provided with a lock plate 17 inside the opening end thereof. The lock plate 17 is formed of a hard material such as titanium, and covers the end surface of the cylinder inner 15 except for the key insertion port, thereby preventing the cylinder inner or the like from being broken by a drill or the like. The cylinder outer 14 is formed with a locking groove 18 for locking a tumbler 16 described later on the inner peripheral surface thereof. As shown in FIG. 1, the cylinder outer 14 is formed with indicia indicating the LOCK position, the ACC position, the ON position, and the START position on the opening end surface exposed to the outside of the housing 1.

  The cylinder inner 15 is formed with a key hole 19 extending from one end surface to the other end side along the rotation axis, and a plurality of tumbler insertion holes 20 arranged side by side in a direction orthogonal to the rotation axis. A flange portion 21 for positioning at the end portion of the cylinder outer 14 is formed at the other end portion of the cylinder inner 15. A protruding portion 22 is formed at the center of the flange portion 21. The protruding portion 22 is inserted into a guide hole 24 of the cam member 3 to be described later, so that the cylinder inner 15 and the cam member 3 can rotate integrally.

  The tumbler 16 is plate-shaped, and a through hole 16 a for inserting a key (not shown) is formed at the center thereof, and is accommodated in the tumbler insertion hole 20 together with the spring 23. The tumbler 16 is retracted into the cylinder inner 15 against the urging force of the spring 23 by inserting the key into the key hole 19 of the cylinder inner 15 so that the edge of the through hole 16 a is pressed by the key crest. Since the tumbler 16 is unlocked from the locking groove 18 of the cylinder outer 14, the cylinder inner 15 can be rotated from the LOCK position to the START position by rotating the key. .

(1-3. Cam member 3)
As shown in FIG. 1, the cam member 3 has a substantially cylindrical shape, and is formed with a guide hole 24 through which the protruding portion 22 of the cylinder inner 15 is non-rotatably inserted from one end side, and from the guide hole 24 from the other end side. Also, the insertion hole 25 through which the distal end side of the holding member 28 is slidably inserted is formed. The guide hole 24 is formed in a different shape having a smaller inner diameter at two circularly symmetrical positions over the entire length. On the bottom surface of the guide hole 24, a spring receiving portion 26 that is further recessed only on the outer peripheral side is formed. A coil spring 27 and a holding member 28 are accommodated in the guide hole 24. The holding member 28 has an operating portion 29 having an inclined surface 29 a at one end, and a flange portion 30 having the same shape as the guide hole 24 at the other end. Further, the protruding portion 22 of the cylinder inner 15 formed in the same shape is inserted into the guide hole 24. Accordingly, the cam member 3 and the holding member 28 are integrally rotated while the cylinder inner 15 rotates in the range from the LOCK position to the START position. The coil spring 27 also biases the cylinder inner 15 via the flange 30 of the holding member 28. For this reason, rattling of the installed cylinder inner 15 is prevented.

  A gear part 31 and a cam part 32 are formed on the outer peripheral part of the cam member 3. The gear unit 31 meshes with a gear of an ignition switch (not shown), and transmits the rotation operation of the cylinder inner 15 by a key operation to the ignition switch. Thereby, the engine can be started by a key operation. Moreover, the cam part 32 protrudes in circular arc shape on an outer peripheral surface, and is comprised so that the height of one end surface may change gradually. As a result, when the cam member 3 rotates together with the cylinder inner 15, the contact position of the cam portion 32 with the end surface of the operation member 33 gradually changes, and the lock bolt 4 is moved between the lock position and the unlock position. It is possible. The operation member 33 has a substantially rectangular parallelepiped shape, and an engaging portion 34 protrudes from the lower surface on one end side, and a locking claw 35 is formed on the other end side.

(1-4. Lock bolt 4)
As shown in FIGS. 1 and 2, the lock bolt 4 is provided with a spring receiving portion 36 on one end surface, a groove-shaped engagement receiving portion 37 is formed on the upper surface on one end side, and a stepped shape on the upper surface on the other end side. It becomes the latching receiving part 38 by forming in this. The other end of the lock bolt 4 is a lock portion 39 that engages and disengages with a steering shaft (not shown). The lock bolt 4 is provided with a coil spring 40 disposed between the spring receiving portion 36 and a spring receiving portion 8 a formed in the communication portion 8 of the housing 1, so that the lock portion 39 protrudes from the communication portion 8. In a state of being urged, the housing 1 is slidably disposed on the communication portion 8. Further, in a state where the lock bolt 4 is disposed in the communication portion 8, the engagement portion 34 of the operation member 33 is engaged with the engagement receiving portion 37, and slides integrally with the operation member 33. As will be described later, the lock bolt 4 reciprocates between a lock position at which the lock portion 39 is engaged with the steering shaft and an unlock position at which the lock bolt 4 is released.

(1-5. Blocking member 5)
The blocking member 5 is a bar having a rectangular cross section with a bent middle portion, and one end portion is a blocking portion 41 that can be positioned on the locking receiving portion 38 of the lock bolt 4. The other end portion of the blocking member 5 is a contact portion 42 pressed by the operating portion 29 (inclined surface 29a) of the holding member 28 disposed in the cam member 3, and is opposite to the contact portion 42. On the side, a spring receiving portion 44 in which the coil spring 43 is disposed is formed. The blocking member 5 is accommodated in the attachment portion 12 that opens on the side surface of the housing 1. A closing member 45 having substantially the same shape as the blocking member 5 is attached to the opening portion of the mounting portion 12. In the state in which the closing member 45 is mounted, the blocking member 5 is biased by the coil spring 43.

  The blocking member 5 is positioned at any of the locking position, the intermediate position, and the non-locking position depending on the difference in the stop position between the lock bolt 4 and the holding member 28.

  That is, when the lock bolt 4 is positioned at the lock position and the operating portion 29 of the holding member 28 is positioned at the retracted position away from the contact portion 42 of the blocking member 5, the blocking member 5 is shown in FIGS. 13 and 14. Thus, it moves to the opposite side to the closing member 45, and the contact part 42 is located at the locking position where it contacts the bottom surface of the attachment part 12. In this locking position, the blocking portion 41 of the blocking member 5 is positioned at the locking receiving portion 38 of the lock bolt 4, and the lock bolt 4 is prevented from moving from the locked position to the unlocked position. Even if the holding member 28 is pushed into the cam member 3, the operating portion 29 abuts against the end surface of the abutting portion 42 and the blocking member 5 cannot be moved.

  Further, when the lock bolt 4 is positioned at the unlock position and the operating portion 29 of the holding member 28 is positioned at the retracted position, the blocking member 5 causes the blocking portion 41 to move to the lock bolt 4 as shown in FIGS. It is located at the intermediate position by being brought into contact with the side surface of the lens and being prevented from moving to the locking position. In this intermediate position, when the holding member 28 is pushed in, the inclined surface 29a of the operating portion 29 presses the corner of the contact portion 42 of the blocking member 5 to move the blocking member 5 to the non-locking position. Is possible.

  Further, when the lock bolt 4 is located at the unlock position and the operating portion 29 of the holding member 28 is located at the forward movement position near the contact portion of the prevention member 5, the prevention member 5 is, for example, as shown in FIGS. As shown, the abutting portion 42 abuts on the operating portion 29 of the holding member 28, and the blocking portion 41 is located at a non-locking position away from the locking receiving portion 38 of the lock bolt 4. In this unlocked position, the lock bolt 4 can be moved from the locked position to the unlocked position by rotating the cam member 3 together with the cylinder inner 15 by a key operation and pressing the operating member 33 with the cam portion 32. It becomes possible.

(2. Assembly method)
Next, a method for assembling the steering lock device having the above configuration will be described.

  First, the coil spring 40, the lock bolt 4, and the operation member 33 are inserted into the communication portion 8 of the housing 1, and the engagement receiving portion 37 of the lock bolt 4 is engaged with the engagement portion 34 of the operation member 33. Subsequently, the cam member 3 and the holding member 28 are inserted from the first tubular portion 6, and the cam member 3 is inserted into the holding recess 10 of the housing 1. The holding member 28 is inserted in advance into the guide hole 24 of the cam member 3 via the coil spring 27. Then, the cam member 3 is rotated to the ACC position. In this state, as shown in FIG. 3, the end surface of the cam portion 32 of the cam member 3 comes into contact with the end surface of the operation member 33 integrated with the lock bolt 4. For this reason, the lock bolt 4 is positioned at the unlock position against the urging force of the coil spring 40. Subsequently, the blocking member 5 and the coil spring 43 are sequentially inserted into the mounting portion 12 of the housing 1 and closed with the closing member 45. Further, the blocking portion 41 of the blocking member 5 abuts against the side surface of the lock bolt 4 and stays at an intermediate position between the locking position and the non-locking position as shown in FIG.

  Next, the shilling outer 14 with the cylinder inner 15 attached is mounted on the first cylindrical portion 6 of the housing 1. At this time, the cylinder inner 15 into which the key has been inserted is rotated to the ACC position in the cylinder outer 14, and the cylinder outer 14 and the cylinder inner 15 are mounted on the first cylindrical portion 6 of the housing 1, so that the protruding portion 22 is The cam member 3 is inserted into the insertion hole 25. As a result, as shown in FIG. 5, the protruding portion 22 of the cylinder inner 15 presses the flange portion 30 of the holding member 28, and the operating portion 29 of the holding member 28 is moved from the cam member 3 against the urging force of the coil spring 27. Make it protrude. The operating portion 29 of the holding member 28 presses the edge of the contact portion 42 of the blocking member 5 with the inclined surface 29a, and moves the blocking member 5 from the intermediate position to the non-locking position as shown in FIG. . The lock bolt 4 maintains a state in which the end surface of the cam portion 32 of the cam member 3 is in contact with the end surface of the integrated operation member 33, and a lock link (not shown) provided in the cylinder outer 14 is engaged with the operation member 33. By staying on the claw 35, it remains in the unlocked position.

  Here, the key is rotated, the cylinder inner 15 is moved from the ACC position to the LOCK position, and the contact state of the cam portion 32 with the operation member 33 is released. When the key is pulled out from the cylinder inner 15, the engagement between the lock link and the locking claw 35 of the operation member 33 is released, and the lock bolt 4 is unlocked by the biasing force of the coil spring 40 as shown in FIG. To the lock position, and the assembly work of the steering lock device is completed.

  Further, as shown in FIG. 15, the set-up plate 13 is attached to the steering lock device assembled in this way, and is used by being attached to the steering column. The set plate 13 is fixed to the housing 1 using threaded bolts. At this time, a part of the set plate 13 covers the opening of the mounting portion 12 formed in the housing 1. Moreover, since the threaded bolt is used, the head of the bolt falls off and the set plate 13 cannot be removed.

(3. Operation)
Next, the operation of the steering lock device having the above configuration will be described.

(3-1. Initial state: LOCK position)
In a state where no key is inserted into the key hole 19 of the cylinder inner 15, the cylinder inner 15 is positioned at the LOCK position, and the steering lock device maintains the locked state. That is, as shown in FIGS. 11 and 12, the lock bolt 4 protrudes to the lock position by the urging force of the coil spring 40, and the lock portion 39 engages with the steering shaft. Further, the protruding portion 22 of the cylinder inner 15 presses the holding member 28 against the urging force of the coil spring 27, and the operating portion 29 side is positioned in the vicinity of the abutting portion 42 of the blocking member 5. In this state, the contact portion 42 of the blocking member 5 contacts the operating portion 29 of the holding member 28, and the blocking member 41 is located at the non-locking position away from the lock receiving portion 38 of the lock bolt 4. Here, when a key is inserted into the key hole 19 of the cylinder inner 15, the tumbler 16 is immersed in the cylinder inner 15, and the cylinder inner 15 can rotate in the cylinder outer 14.

(3-2. LOCK position → ACC position → ON position → START position)
Therefore, when the key is rotated to move the cylinder inner 15 to the ACC position, the cam member 3 is rotated as shown in FIGS. 5 and 6, and the operating member 33 is moved by the cam portion 32 to the operation member 33 in FIG. The lock bolt 4 is moved to the unlocked position against the urging force of the coil spring 40 by pressing toward the right side. Thereby, the locked state of the steering column is released, and the steering wheel can be operated. Further, when the cylinder inner 15 exceeds the ON position and rotates to the START position shown in FIGS. 7 and 8, the ignition switch is actuated via the gear portion 31 of the cam member 3, the engine is started, and the key is pressed. When released, the shilling inner 15 automatically returns to the ON position. Even when the cylinder inner 15 is rotated to the ACC position, the ON position, and the START position, the holding member 28 rotates together with the cylinder inner 15, but the contact portion 42 of the blocking member 5 operates the holding member 28. The state in contact with the portion 29 is maintained, and the blocking member 41 is maintained in the non-locking position.

  When the cylinder inner 15 is moved from the ON position to the ACC position by rotating the key, the engine is stopped, and when the cylinder inner 15 is further moved to the LOCK position, the state shown in FIGS. Supply stops. Further, when the key is removed from the cylinder inner 15, the steering lock device is in the initial state shown in FIG. 11 and FIG.

(3-3. Removing the cylinder lock 2)
When the cylinder lock 2 is removed from the housing 1 due to theft or the like while the cylinder inner 15 is in the LOCK position, the holding member 28 is released from the pressing state by the protruding portion 22 of the cylinder inner 15 and the coil spring 27 is attached. Due to the force, it moves to the right in FIG. As a result, the operating portion 29 of the holding member 28 is retracted from the side of the abutting portion 42 of the blocking member 5, and the blocking member 5 is moved by the biasing force of the coil spring 43. As a result, the blocking portion 41 moves from the non-locking position to the locking position where the blocking portion 41 is locked by the locking receiving portion 38 of the lock bolt 4. Then, the lock bolt 4 cannot be moved to the unlock position. Even if the holding member 28 is pushed in, as shown in FIG. 13B, the operating portion 29 is prevented from moving to the forward position by the abutting portion 42 of the blocking member 5 moved by the coil spring 43. Therefore, it is impossible to move the lock bolt 4 to the unlock position.

  When the cylinder lock 2 is damaged or it is necessary to replace the cylinder lock 2 with a new one due to replacement of the key or the like, first, a key is inserted into the cylinder inner 15 to insert the cylinder inner 15 into FIGS. Rotate to the ACC position shown in FIG. In this ACC position, a fixing pin (not shown) for fixing the cylinder outer 14 to the housing 1 can be operated, and the fixing of the cylinder outer 14 to the housing 1 is released by operating the fixing pin. When the cylinder lock 2 is removed from the housing 1, the holding member 28 is released from the pressing state by the protruding portion 22 of the cylinder inner 15, and moves to the right side in FIG. 5A by the urging force of the coil spring 27. . As a result, the operating portion 29 of the holding member 28 is retracted from the side of the abutting portion 42 of the blocking member 5, and the blocking member 5 is moved by the biasing force of the coil spring 43. At this time, the lock bolt 4 is in the unlocked position as shown in FIGS. 3 and 4, the blocking portion 41 of the blocking member 5 abuts against the side surface of the lock bolt 4, and the blocking member 5 is held at the intermediate position. . In this state, when a new cylinder lock 2 is mounted from one end opening of the first cylindrical portion 6 of the housing 1, the cylinder outer 14 is fixed to the housing 1 by the fixing pin, and the protruding portion 22 of the cylinder inner 15 is the holding member. The collar portion 30 of the holding member 28 is pressed against the urging force of the coil spring 27 so as to protrude from the cam member 3. The operating portion 29 of the holding member 28 presses the contact portion 42 of the blocking member 5 with the inclined surface 29a, and moves the blocking member 5 from the intermediate position to the non-engagement position shown in FIG. As a result, the steering lock device enters the ACC state shown in FIGS. 5 and 6 and the replacement of the cylinder lock 2 is completed. As described above, when the cylinder lock 2 is replaced while the cylinder inner 15 is rotated to the ACC position, the lock bolt 4 is not locked by the blocking member 5, and the cylinder lock 2 can be easily replaced. Is possible. The cylinder inner 15 cannot be rotated to the ACC position unless a key is inserted, and the anti-theft property is maintained.

  Note that the steering lock device of the present invention is not limited to the configuration of the above-described embodiment, and can be implemented with various modifications and additions without departing from the spirit of the present invention. For example, in this embodiment, the lock bolt 4 and the operation member 33 are provided separately, but the lock bolt 4 and the operation member 33 may be provided integrally. In this embodiment, the closing member 45 that closes the external opening of the mounting portion 12 of the housing 1 is fixed by attaching the set plate 13. However, the closing member 45 is fixed to the housing 1 by a fastening member such as a screw. You may make it fix to. In this case, if the fastening member is arranged at the position facing the steering column side, the portion exposed to the outside of the fastening member is covered by the cylinder column and cannot be seen from the outside when the steering lock device is attached to the steering column. Thus, it is possible to prevent a theft act of removing the closing member 45 illegally.

It is a disassembled perspective view of the steering lock device concerning this embodiment. It is sectional drawing of the steering lock apparatus which concerns on this embodiment. (A) is the front view which shows the state which removed the housing before mounting | wearing the cylinder lock of FIG. 2, (b) is the sectional view on the AA line. FIG. 4 is a side view of FIG. (A) is a front view which shows the state (ACC position) which mounted | wore with the cylinder lock from Fig.3 (a), (b) is the BB sectional drawing. FIG. 6 is a side view of FIG. (A) is a front view which shows the state which rotated the cylinder inner to the START position from Fig.5 (a), (b) is the CC sectional view taken on the line. FIG. 8 is a side view of FIG. (A) is a front view which shows the state which rotated the cylinder inner to the LOCK position from Fig.7 (a), (b) is the DD sectional view taken on the line. It is a side view of Fig.9 (a). 9A is a front view showing a state in which the cylinder inner is rotated to the LOCK position and the key is pulled out, and FIG. 9B is a cross-sectional view taken along the line EE. It is a side view of Fig.11 (a). (A) is a front view which shows the state which removed the cylinder inner from Fig.11 (a), (b) is the FF sectional view taken on the line. It is a side view of Fig.13 (a). (A) is a front view which shows the state before set plate attachment to a housing, (b) is a front view which shows the state after attachment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Housing 2 ... Cylinder lock 3 ... Cam member 4 ... Lock bolt 5 ... Blocking member 6 ... 1st cylindrical part (one end side opening part)
7 ... 2nd cylindrical part 8 ... Communication part (other end side opening part)
DESCRIPTION OF SYMBOLS 9 ... Holding part 10 ... Holding recessed part 11 ... Insertion part 12 ... Mounting part 13 ... Set plate 14 ... Cylinder outer 15 ... Cylinder inner 16 ... Tumbler 17 ... Lock plate 18 ... Locking groove 19 ... Key hole 20 ... Tumbler insertion hole 21 ... Flange part 22 ... Protrusion part 23 ... Spring 24 ... Guide hole 25 ... Insertion hole 26 ... Spring receiving part 27 ... Coil spring 28 ... Holding member 29 ... Operating part 29a ... Inclined surface 30 ... Hang part 31 ... Gear part 32 ... Cam Part 33 ... Operation member 34 ... Engagement part 35 ... Locking claw 36 ... Spring receiving part 37 ... Engagement receiving part 38 ... Locking receiving part 39 ... Locking part 40 ... Coil spring 41 ... Blocking part 42 ... Contact part 43 ... Coil spring 44 ... Spring receiving part 45 ... Closing member

Claims (7)

A housing;
A cylinder lock that has a cylinder outer and a cylinder inner, and is attached to an opening on one end of the housing;
A cam member disposed in the housing and capable of rotating forward and backward integrally with the cylinder inner;
A lock disposed in the opening at the other end of the housing and capable of reciprocating between a locked position for preventing the rotation of the steering shaft and an unlocked position for allowing the rotation of the steering shaft according to the rotational operation of the cam member. Bolts,
A holding member that passes through the cam member and is reciprocally movable along the axial direction of the rotating shaft of the cam member, and is capable of being pushed in by one end of the cylinder inner;
Non-locking that is disposed in the housing and is not locked to the lock receiving portion provided on the lock bolt by being pressed by the holding member in a state where a cylinder lock is attached to the opening at one end of the housing A blocking member that is held in position and moves to a locking position for locking to the locking receiving portion in a state where the cylinder lock is removed;
A steering lock device comprising:   When the cylinder lock is removed from the housing in a state where the lock bolt is located at the lock position, the blocking member is released from the pressing state by the holding member and is locked in the lock receiving portion. The steering lock device according to claim 1, wherein the steering lock device is configured to be moved to the position and cannot be moved by the pressing by the holding member, and remains in the locking position.   The blocking member includes a contact portion that contacts the holding member and a blocking portion that is locked to the locking receiving portion of the lock bolt, and moves to the side with respect to the moving direction of the holding member and the lock bolt. The steering lock device according to claim 1, wherein the blocking portion is detachably disposed on the lock receiving portion of the lock bolt.   When the lock bolt is in the unlocked position, the blocking member is located at an intermediate position where the locking bolt is in contact with the side surface of the lock bolt and is prevented from engaging with the engaging portion. 4. The steering lock device according to claim 1, wherein the steering lock device is moved to the non-locking position by the operating portion of the holding member pressed by the cylinder inner.   The said holding member is press-contacted to the cylinder inner of the cylinder lock with which the one end side opening part of the said housing was mounted | worn by being accommodated in a cam member via a spring. The steering lock device according to claim 1. The housing includes a holding recess that rotatably supports the cam member, an insertion portion that extends from the holding recess and into which a part of the holding member is inserted, and the insertion portion and the other end side opening. And a holding portion having a mounting portion that is crossed from the side and into which the blocking member is inserted,
The blocking member includes an abutment portion that is inserted through an attachment portion and is positioned in the insertion portion, and a blocking portion that is positioned in the opening on the other end side.
Biasing means for biasing the blocking member toward the insertion portion;
The steering lock device according to any one of claims 1 to 5, further comprising a closing member that closes the attachment portion.   The steering lock device according to claim 6, wherein the closing member is maintained in a closed state by the set plate when the set plate for mounting the housing on the steering shaft side is fixed.