JP2006347503A - Vehicular steering locking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent water ingress in an ignition switch without increasing the operational torque in a vehicular steering locking device in which an inner cylinder having a key insertion hole is turnably supported, an accommodation chamber with a bulkhead provided on a body being interposed between an ignition switch and itself is formed in a casing including at least a body having the ignition switch to change the switching mode according to the turn of the inner cylinder, and a locking member to change the permission and prevention of the turning operation according to the turn of the inner cylinder is connected to the inner cylinder in the storage chamber. <P>SOLUTION: A flange part 46 having the diameter larger than that of a through hole 43 formed in a bulkhead 26 to allow an inner cylinder 14 to pass therethrough is provided on the inner cylinder 14 facing the bulkhead 26 in a storage chamber 23 between a locking member 16 and the bulkhead 26. A water draining hole 47 communicated with a lower part of the storage chamber 23 is formed in a casing 13. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention is provided in a casing including at least a body to which an inner switch having a key insertion hole is rotatably supported and to which an ignition switch that changes a switching mode according to the rotation of the inner cylinder is attached. A storage chamber in which a partition wall is interposed between the ignition switch and the ignition switch is formed, and a lock member that switches permission and prevention of a steering operation in accordance with the rotation of the inner cylinder is connected to the inner cylinder in the storage chamber. The present invention relates to a steering lock device for a vehicle.

In order to prevent water that has entered from the key insertion hole from remaining in the accommodation chamber, a through hole that communicates with the lower portion of the accommodation chamber is provided in a partition wall that separates the accommodation chamber and the ignition switch. An apparatus is already known from US Pat.
Japanese Examined Patent Publication No. 62-51177

  By the way, in the steering lock device disclosed in Patent Document 1 above, water in the accommodation chamber is discharged to the ignition switch side, and when the inner cylinder is mounted on a vehicle with the rotation axis of the inner cylinder being substantially horizontal. Although there is little possibility of inundation to the contact point side of the ignition switch, if the rotation axis of the inner cylinder is close to vertical, water may be infiltrated into the ignition switch through the rear part of the inner cylinder that penetrates the partition wall. is there. Therefore, an O-ring is attached to the rear part of the inner cylinder, and the partition between the partition wall and the inner cylinder is already sealed with the O-ring.

  However, when the O-ring is used as described above, the operation torque increases due to the tightening load of the O-ring, and the steering lock is accompanied by a push operation of the inner cylinder when the switching mode of the ignition switch (for example, LOCK OFF) is changed. In the apparatus, the O-ring may be turned up due to the axial movement of the inner cylinder, and the sealing function may be deteriorated.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a vehicle steering lock device that prevents water from entering the ignition switch without increasing the operating torque.

  In order to achieve the above object, the present invention provides a body to which an inner cylinder having a key insertion hole at a front portion is rotatably supported and an ignition switch for changing a switching mode in accordance with the rotation of the inner cylinder is mounted. A lock member that switches between permitting and blocking of the turning operation in accordance with the rotation of the inner cylinder, wherein a housing chamber in which a partition wall provided in the body is interposed between the ignition switch and the ignition switch is formed. In the vehicle steering lock device connected to the inner cylinder in the housing chamber, a through hole provided in the partition wall for allowing the inner cylinder to pass through the inner cylinder in the housing chamber between the lock member and the partition wall. A flange having a larger diameter than the partition is provided Drain hole leading to the bottom of the receiving chamber, characterized in that provided in the casing.

  According to the above configuration of the present invention, the water that has entered the housing chamber is discharged from the drain hole to the outside of the casing, and the water that has traveled along the outer surface of the inner cylinder is removed from the drain hole side by the flange. Will be led to. Therefore, even if a seal member is not provided between the body bulkhead and the inner cylinder, it is possible to effectively prevent water from entering the ignition switch side from the storage chamber, and without increasing the operating torque, the ignition switch can be prevented. It is possible to prevent water from entering inside.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on one embodiment of the present invention shown in the accompanying drawings.

  1 to 5 show an embodiment of the present invention, FIG. 1 is a side view of a steering lock device with a body cover removed, and FIG. 2 is a sectional view taken along line 2-2 of FIG. 1 in an ON state. 3 is a cross-sectional view corresponding to FIG. 2 in a state before the inner cylinder is pushed when assembling the ring to the inner cylinder. FIG. 5 is a sectional view corresponding to FIG. It is sectional drawing corresponding to FIG. 2 in the state after pushing the inner cylinder in the assembly | attachment.

  First, in FIGS. 1 to 3, for example, a metal body 11 is attached to a steering column (not shown) of a motorcycle, and a body cover 12 made of a synthetic resin that constitutes a casing 13 together with the body 11 is a body 11. Mounted on. The body 11 is supported by an inner cylinder 14 that can be rotated so as to sequentially occupy the LOCK position, the OFF position, and the ON position on the condition that a push operation is accompanied when rotating between the LOCK position and the OFF position. An ignition switch 15 whose switch mode is changed according to the turning operation of the inner cylinder 14 is attached, and a lock member 16 that switches between permitting and blocking of the steering operation according to the turning of the inner cylinder 14 is slidably supported. Is done.

  One end of the body 11 is provided with a cylindrical caulking tube portion 17 and a flat ring-shaped receiving surface 18 surrounded by the caulking tube portion 17. Also, a first hole 19 that opens at one end in the receiving surface 18, a second hole 20 that has a smaller diameter than the first hole 19 and that has one end coaxially connected to the other end of the first hole 19, and a second hole 20 The third hole 21 having one end coaxially connected to the other end of the second hole 20 and having an engagement groove 39, which will be described later, and the steering column connected to the other end of the third hole 21. A recess 22 having an opposite side opened is provided in the body 11, and a housing chamber 23 is formed by the recess 22 and the body cover 12 covering the open end of the recess 22.

  Further, an ignition switch 15 is attached to the body 11, and a switch housing hole 25 into which a contact holder 24 provided in the ignition switch 15 is rotatably fitted is opposite to the third hole 21 with respect to the housing chamber 23. A partition wall 26 is provided in the body 11 so as to be positioned on the side, and the switch housing hole 25 and the housing chamber 23 are separated from each other. In addition, a click mechanism 27 is provided between the contact holder 24 and the partition wall 26 to give a sense of moderation to the rotation of the contact holder 24.

  The inner cylinder 14 has a bottomed key insertion hole 29 for inserting a regular key 28 and is slidably fitted in the third hole 21, and is connected to the rotor part 14 a. A drive portion 14b formed in a crank shape and accommodated in the accommodation chamber 23, a shaft portion 14c connected to the drive portion 14b coaxially with the rotor portion 14a, and a connecting shaft portion 14d connected to the shaft portion 14c And a part of the shaft portion 14c is inserted into a through hole provided in the partition wall 26 so as to be rotatable and movable in the axial direction, and the connecting shaft portion 14d is connected to the contact of the ignition switch 15. It is connected to the holder 24 so as to allow relative movement in the axial direction and prevent relative rotation around the axis. Moreover, the return spring 31 is contracted between the spring receiving plate 30 and the contact holder 24 mounted on the shaft portion 14 c of the inner cylinder 14.

  A protector 33 having a key hole 32 connected to the key insertion hole 29 is disposed to face one end of the inner cylinder 14 from the side opposite to the spring biasing direction by the return spring 31. A plurality of, for example, a pair of engagement rods 33 a and 33 b are integrally projected on the protector 33 such that the engagement rods 33 a and 33 b protrude outward in the radial direction. And an annular step portion 34 formed between the second holes 19 and 20, and a ring plate 35 fixed to the body 11 by caulking the caulking tube portion 17 in contact with the receiving surface 18. And is inserted into the first hole 19 of the body 11. That is, the protector 33 is supported by the body 11 so as to be rotatable around the axis, and when the regular key 28 inserted into the key insertion hole 29 from the key hole 32 is rotated, the protector 33 is moved to the inner cylinder. 14, but the inner cylinder 14 is pushed in with the protector 33 left at the time of the push operation by the key 28.

  Thus, locking grooves 36 and 37 that open to the stepped portion 34 are provided on the inner surface of the second hole 20 at portions corresponding to the engagement rods 33a and 33b at the LOCK position. When a driver other than the regular key 28 is pushed into the key hole 32 and is forcibly pushed, the engaging rods 33a and 33b are engaged with the corresponding locking grooves 36 and 37 to rotate the protector 33. Will be blocked. Further, between the engaging rods 33a and 33b of the protector 33 and the spring receiving rod portion 14e integrally provided on the outer periphery near one end of the rotor portion 14a so as to be slidably fitted in the second hole 20. The coil-shaped spring 38 surrounding one end of the rotor portion 14a is contracted, and this spring 38 is applied to the protector 33 when the inner cylinder 14 is pushed by the regular key 28 at the LOCK position and the OFF position. Urges the protector 33 so as not to follow the inner cylinder 14 and move in the axial direction.

  The body cover 12 is integrally provided with a cylindrical protector cover portion 12a that surrounds the protector 33, and the protector cover portion 12a also covers the fixing portion of the ring plate 33 to the body 11.

  The inner surface of the third hole 21 in the body 11 is provided with a pair of engaging grooves 39, 39 extending in the axial direction. The rotor portion 14a is inserted with the regular key 28 into the key insertion hole 29. Accordingly, a plurality of tumblers 40, which release the engagement with the engagement grooves 39, 39, are disposed while being elastically biased in a direction to engage with the engagement grooves 39.

  Within the storage chamber 23, a projecting portion 14f is projected from the driving portion 14b of the inner cylinder 14. When the inner cylinder 14 is rotated between the LOCK position and the OFF position without a push operation, the projecting portion 14f is provided. A stopper 41 that prevents the inner cylinder 14 from rotating by abutting and engaging is integrally provided on the body 11. Thus, by pushing the inner cylinder 14, the protrusion 14f is pushed to a position where it can turn over the stopper 41, and the inner cylinder 14 is moved during the rotation between the LOCK position and the OFF position. A push operation is required.

  The lock member 16 is supported by the body 11 so as to be slidable in a plane orthogonal to the axis of the inner cylinder 14, and is connected to the drive portion 14 b of the inner cylinder 14 in the storage chamber 23. The In other words, the lock member 16 is provided with a connecting hole 42 through which the driving portion 14b is inserted, and the driving portion 14b is formed in a crank shape so that the inner cylinder 14 rotates between the LOCK position and the OFF position. As it moves, the lock member 16 is driven to slide. Thus, in the LOCK position of the inner cylinder 14, the lock member 16 located at the protruding position indicated by the chain line in FIG. 2 is engaged with a steering shaft (not shown) to prevent the steering operation. In order to allow the steering operation to release the engagement, the vehicle moves backward to the position indicated by the solid line in FIG.

  The partition wall 26 of the body 11 is provided with a through hole 43 that allows the shaft part 14c of the inner cylinder 14 to pass therethrough. The through hole 43 includes a large diameter hole part 43a on the housing chamber 23 side and a large diameter hole part. A small-diameter hole 43b disposed on the ignition switch 15 side with a smaller diameter than 43a is coaxially connected. The inner diameter of the large-diameter hole 43a is spaced from the outer periphery of the shaft part 14c in the axial direction. It is set to such an extent that the annular protrusion 44 on the partition wall 26 side can be inserted among the pair of annular protrusions 44, 45 provided on the wall.

  According to the present invention, the shaft portion 14c of the inner cylinder 14 in the accommodating chamber 23 between the lock member 16 and the partition wall 26 has a larger diameter than the through hole 43 provided in the partition wall 26. The ring 46 is provided opposite to the partition wall 26, and the ring 46 is made of an elastic material such as rubber, and is mounted on the shaft portion 14c between the annular projecting portions 44 and 45.

  When the ring 46 is mounted on the shaft portion 14 c of the inner cylinder 14, as shown in FIG. 4, the shaft portion of the inner cylinder 14 is brought into contact with the ring 46 brought into contact with the surface of the partition wall 26 on the housing chamber 23 side. 14 c is inserted, and the annular projection 44 on the partition wall 26 side of the annular projections 44, 45 provided on the shaft portion 14 c is bitten into the inner periphery of the ring 46. Next, when the inner cylinder 14 is pushed, as shown in FIG. 5, the ring 46 is prevented from moving following the inner cylinder 14 by the partition wall 26, so that the shaft portion 14 c is formed between the annular protrusions 44 and 45. It will move to the mounting position, whereby the mounting of the ring 46 to the inner cylinder 14 is completed.

  Further, the casing 13 composed of the body 11 and the body cover 12 is provided with a drain hole 47 that communicates with the lower portion of the storage chamber 23. In this embodiment, a part of the body 11 and the body cover 12 is cut away. A drain hole 47 is formed between the body 11 and the body cover 12.

  Next, the operation of this embodiment will be described. The shaft portion 14c of the inner cylinder 14 in the accommodating chamber 23 between the lock member 16 and the partition wall 26 has a through hole 43 provided in the partition wall 26 so as to allow the shaft portion 14c to pass therethrough. A ring 46 having a larger diameter than the partition wall 26 is provided opposite to the partition wall 26, and a water drain hole 47 communicating with the lower portion of the storage chamber 23 is provided in the casing 13.

  Therefore, the water that has entered the storage chamber 23 is discharged from the drain hole 47 to the outside of the casing 13, and the water that has traveled along the outer surface of the inner cylinder 14 is guided to the drain hole 47 side by the ring 46. Will be.

  For this reason, even if no seal member is provided between the partition wall 26 and the inner cylinder 14 of the body 11, it is possible to effectively prevent water from entering the storage chamber 23 toward the ignition switch 15, and increase the operating torque. Without being accompanied, it is possible to prevent water from entering the ignition switch 15.

  The embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the present invention described in the claims. It is.

  For example, in the above embodiment, the case where the present invention is applied to a motorcycle has been described. However, the present invention can also be implemented as a steering lock device for a vehicle other than a motorcycle.

It is a side view of a steering lock device in the state where a body cover was removed.

FIG. 2 is a sectional view taken along line 2-2 of FIG. 1 in an ON state. FIG. 3 is a view taken in the direction of arrow 3 in FIG. 1. It is sectional drawing corresponding to FIG. 2 in the state before pushing an inner cylinder in assembling a ring to an inner cylinder. FIG. 3 is a cross-sectional view corresponding to FIG. 2 in a state after the inner cylinder is pushed when the ring is assembled to the inner cylinder.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 ... Body 13 ... Casing 14 ... Inner cylinder 15 ... Ignition switch 16 ... Lock member 23 ... Storage chamber 26 ... Partition 29 ... Key insertion hole 43 ... Through hole 46 ... Ring 47 that is a collar part ... Water drain hole

Claims (1)

  A body (11) to which an ignition switch (15) is mounted that rotatably supports an inner cylinder (14) having a key insertion hole (29) and changes a switching mode in accordance with the rotation of the inner cylinder (14). Is formed in the casing (13) including at least a partition wall (26) provided between the body (11) and the ignition switch (15). In the vehicle steering lock device in which a lock member (16) that switches blocking according to the rotation of the inner cylinder (14) is connected to the inner cylinder (14) in the storage chamber (23), the lock member ( 16) and the inner cylinder (14) in the storage chamber (23) between the partition wall (26) and the inner cylinder (14). A flange (46) having a diameter larger than that of the through hole (43) provided in the partition wall (26) so as to pass through the solder (14) is provided to face the partition wall (26), and the storage chamber (23 A steering lock device for a vehicle, wherein a drain hole (47) communicating with a lower portion of the casing (13) is provided in the casing (13).

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