JP4204355B2 - Handle lock device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a handle lock device capable of locking a handle bar of a motorcycle or the like for the purpose of preventing theft.
[0002]
[Prior art]
In general, a two-wheeled vehicle is provided with a steering shaft that forms a rotation shaft of a handlebar and an engagement hole at a predetermined position, and an upper bracket that connects and fixes the steering shaft and the front fork. An ignition switch is attached to the upper bracket.
[0003]
When the ignition switch is switched to the lock position, the lock bar can be moved in and out of the engagement hole formed in the steering shaft, and the handle bar is inserted with the lock bar tip inserted into the engagement hole. Could be locked. That is, at the time of locking, the lock bar protrudes and engages with the steering shaft, so that the front fork cannot be rotated, thereby locking the handle bar and preventing the motorcycle from being stolen.
[0004]
By the way, recently, it has begun to be required to electrically drive the protrusion / retraction operation with respect to the engagement hole of the lock bar in the handle lock device as described above. This is assumed to be a case where a keyless entry system or the like that has already been adopted by a four-wheeled person is deployed in a two-wheeled vehicle. For example, in a system such as that disclosed in Patent Document 1, an electric operation of a lock bar is essential. is there.
[0005]
The technique disclosed in Patent Document 1 is for enabling a handlebar to be locked or unlocked without a key by a remote control lock operation system using an infrared signal. A transmitter capable of transmitting an infrared signal, a receiver capable of receiving a signal from the transmitter, an actuator for driving the lock bar based on the signal received by the receiver, and the like are provided.
[0006]
[Patent Document 1]
Japanese Patent Laid-Open No. 2003-11865
[Problems to be solved by the invention]
However, in the above-described conventional handle lock device, the lock bar is operated by an electrically driven drive means (actuator) so that the steering (handle bar) can be locked or unlocked by remote control. May cause the following problems.
[0008]
That is, when the lock bar is moved by the driving means in order to lock the handle bar by inserting the tip of the lock bar into the engagement hole, for example, the movement locus of the lock bar and the position of the engagement hole are shifted. If so, there is a problem that the tip of the lock bar interferes with the edge of the engagement hole. However, since the drive of the drive means is maintained until the lock bar reaches the lock position even after such interference, an excessive load is applied to the lock bar, and the lock bar is broken, damaged or engaged. There was a risk of deformation of the holes.
[0009]
Conversely, when the drive means is driven from the locked state in which the tip of the lock bar is inserted into the engagement hole, and the lock bar is retracted from the engagement hole, the engagement hole and the lock bar are in a fitted state. (For example, when the vehicle weight is applied between the engagement hole and the lock bar), the lock bar is moved backward as in the case where the lock bar is moved forward with the overload applied at the time of locking. There was a problem that an excessive load was applied.
[0010]
The present invention has been made in view of such circumstances, and the lock bar can be moved by the driving means, and even if an overload occurs in the lock bar moved by the driving means, An object of the present invention is to provide a handle lock device that can avoid problems such as deformation of an engagement hole.
[0011]
[Means for Solving the Problems]
According to a first aspect of the present invention, an engagement hole is provided in a steering shaft that forms a rotation shaft of a handlebar of a vehicle, and a handlebar lock device capable of locking the handlebar by inserting a lock bar into the engagement hole. Driving means for moving the lock bar between a lock position in which the tip of the lock bar is inserted into the engagement hole and an unlock position in which the tip is separated from the engagement hole; And an overload absorbing unit capable of absorbing the load when a predetermined load or more is applied to the lock bar that is moved by the driving unit, and the overload absorbing unit includes the lock bar and the drive. A first elastic member and a second elastic member interposed between the first elastic member and the second elastic member, and the driving force of the driving means is transmitted to the lock bar via the first elastic member and the second elastic member. In the process of moving the lock bar from the unlock position to the lock position, when a predetermined load or more is applied to the lock bar, the first elastic member absorbs the load and locks from the driving means. When transmission of the driving force to the bar is interrupted and a load of a predetermined level or more is applied to the lock bar in the process of moving the lock bar from the lock position to the unlock position, the load is applied to the second bar. The elastic member absorbs the driving force transmitted from the driving means to the lock bar .
[0014]
According to a second aspect of the invention, in the steering lock device according to claim 1, wherein the drive means comprises a motor for rotating the feed screw shaft is connected with the feed screw shaft, and the tooth surfaces of the feed screw shaft that rotates An interlocking member that can move while being engaged is provided, and the lock bar is attached to the interlocking member.
[0015]
According to a third aspect of the present invention, the handle lock device according to the first or second aspect further comprises a moving end detecting means capable of detecting that the lock bar is positioned at the moving end. The driving of the driving means is controlled based on the detected value.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
As shown in FIG. 1, the handle lock device according to the present embodiment is provided with an engagement hole a in a steering shaft S <b> 1 that forms a rotation shaft of a handlebar (not shown) of a two-wheeled vehicle, and in the engagement hole a. The handle bar can be locked by inserting the lock bar 2, and is formed to project from a motor M as a driving means, a handle lock device body 1, and a side surface of the handle lock device body 1 facing the motor M. The external appearance is mainly composed of a protruding portion 1a that allows the lock bar 2 to be raised and lowered.
[0017]
As shown in FIG. 2, the handle lock device main body 1 mainly includes a substantially plate-like motor frame 3 and a case 4 attached to the motor frame 3 and having a housing space formed therein. 3 and the case 4 are fixed by screws N. Note that the protruding portion 1 a described above is formed on the wall surface of the case 4 facing the motor frame 3.
[0018]
The output shaft 5 of the motor M fixed to the motor frame 3 extends to the inside of the handle lock device main body 1, and a small-diameter gear G1 is fixed near the tip thereof. A large-diameter gear G2 attached to the feed screw shaft 5 is disposed adjacent to the gear G1, and the tooth surface of the gear G2 and the tooth surface of the gear G1 are installed so as to mesh with each other. Thereby, when the motor M is rotated, the feed screw shaft 5 is rotated with the rotation of the output shaft Ma.
[0019]
As shown in FIG. 3, the feed screw shaft 5 is provided with a first interlocking member 6 that can move while meshing with its tooth surface. The upper surface of the first interlocking member 6 has a predetermined dimension. A pair of protruding portions 6a and 6b protruding upward while being separated from each other are formed. Thus, when the motor M is rotated forward (or reverse), the feed screw shaft 5 rotates and the first interlocking member 6 can be moved in the right direction in FIG. ), The feed screw shaft 5 rotates in the opposite direction, and the first interlocking member 6 can be moved in the left direction in the figure. 2 and 3 indicates a guide rod of the first interlocking member 6.
[0020]
A second interlocking member 7 is disposed at a position adjacent to the first interlocking member 6, and the upper portion of the second interlocking member 7 extends between the protrusions 6 a and 6 b of the first interlocking member 6. An extending portion 7a that extends is formed. The extended portion 7a is set so as to contact the protruding portion 6a of the first interlocking member 6, and a second elastic member is provided between the extending portion 7a and the protruding portion 6b of the first interlocking member 6. A return spring P1 is interposed.
[0021]
On the other hand, the second interlocking member 7 is formed with an extended accommodation hole 7b as shown in the figure, and the lock spring P2 and the lock bar 2 as the first elastic member are inserted into the accommodation hole 7b. It is like that. The lock bar 2 is provided between the lock position where the tip is inserted into the engagement hole a (see FIG. 1) of the steering shaft S1 and the unlock position where the tip is separated from the engagement hole a. It can be moved by driving.
[0022]
That is, when the motor M is driven to lock the handlebar, the feed screw shaft 5 rotates and the first interlocking member 6 moves to the right in the figure, and the protruding portion 6a of the interlocking member 6 is the second. The extending portion 7a of the interlocking member 7 is pressed to move the lock bar 2 to the right together with the second interlocking member 7. Accordingly, the handle bar can be locked by moving the lock bar 2 in the unlock position to the lock position.
[0023]
Here, the driving force of the motor M is mainly transmitted to the lock bar 2 via the feed screw shaft 5, the first interlocking member 6, the second interlocking member 7, and the lock spring P2. In a state where a predetermined load or more is not applied, substantially all of the driving force of the motor M is transmitted to the lock bar 2 based on the transmission path, and the lock bar 2 is moved to the lock position. In the process in which the lock bar 2 moves from the unlock position to the lock position, a predetermined load or more is applied to the lock bar 2 (for example, when the movement path of the lock bar and the position of the engagement hole are deviated). When the lock spring P2 shrinks by a predetermined dimension, the load is absorbed and transmission of the driving force from the motor M to the lock bar 2 is interrupted.
[0024]
That is, the lock spring P2 is interposed between the lock bar 2 and the motor M, and the driving force of the motor M is transmitted to the lock bar 2 via the lock spring P2. As shown, the lock bar 2 moves in the protruding direction (that is, in the direction of the engagement hole a) together with the second interlocking member 7 via the lock spring P2, but the lock bar 2 moves from the unlock position to the lock position. When a predetermined load or more is applied to the lock bar 2 during the process, the lock spring P2 contracts and the relative displacement of the lock bar 2 with respect to the second interlocking member 7 is restricted as shown in FIG. It is.
[0025]
Accordingly, even if an overload occurs in the lock bar 2 that is moved by driving the motor M when the handlebar is locked, the transmission of the driving force from the motor M to the lock bar 2 is interrupted while absorbing the load, and the lock bar 2 Therefore, problems such as breakage of the lock bar 2 and deformation of the engagement hole a can be avoided. In addition, since the overload generated in the lock bar 2 can be absorbed by simple means such as the lock spring P2, the handlebar can be manufactured at a lower cost compared to, for example, a general-purpose torque limiter attached to the motor M. A locking device can be manufactured.
[0026]
Contrary to the above, when the motor M is driven to unlock the handlebar, the feed screw shaft 5 rotates and the first interlocking member 6 moves to the left in FIG. 3, and the protruding portion 6b returns. The extension part 7a is pressed via the spring P1, and the lock bar 2 is also moved leftward together with the second interlocking member 7. Therefore, the lock bar 2 in the lock position can be moved to the unlock position, and the lock of the handle bar can be released.
[0027]
Here, the driving force of the motor M is mainly transmitted to the lock bar 2 via the feed screw shaft 5, the first interlocking member 6, the return spring P1, and the second interlocking member 7, and the lock bar 2 In a state where a load exceeding a predetermined value is not applied to the motor, substantially all of the driving force of the motor M is transmitted to the lock bar 2 based on the transmission path, and the lock bar 2 is moved to the unlock position. In the process in which the lock bar 2 moves from the lock position to the unlock position, a predetermined load or more is applied to the lock bar 2 (for example, when the engagement hole a and the lock bar 2 are fitted). Then, when the return spring P1 shrinks by a predetermined dimension, the load is absorbed and transmission of the driving force from the motor M to the lock bar 2 is interrupted.
[0028]
That is, the return spring P1 is interposed between the lock bar 2 and the motor M, and the driving force of the motor M is transmitted to the lock bar 2 via the return spring P1. As shown, the lock bar 2 moves together with the second interlocking member 7 in the backward direction (that is, the direction away from the engagement hole a) via the return spring P1, but the lock bar 2 is unlocked from the lock position. When a predetermined load or more is applied to the lock bar 2 in the process of moving to the position, as shown in FIG. 7, the return spring P1 is contracted and the relative displacement of the lock bar 2 with respect to the second interlocking member 7 is reduced. It is regulated.
[0029]
Therefore, even if an overload occurs in the lock bar 2 that is moved by driving the motor M when the handlebar is unlocked, transmission of the driving force from the motor M to the lock bar 2 is interrupted while absorbing the load, and the lock bar Since the unreasonable movement of 2 is restricted, problems such as breakage of the lock bar 2 and deformation of the engagement hole a can be avoided. Further, since the overload generated in the lock bar 2 can be absorbed by a simple means such as the return spring P1, the handlebar can be manufactured at a lower cost compared to, for example, a general-purpose torque limiter attached to the motor M. A locking device can be manufactured.
[0030]
Further, a bulging portion 6c bulging to the side by a predetermined dimension is formed on the side surface of the first interlocking member 6, and a magnet is formed on the whole or the bottom surface of the bulging portion 6c. However, as shown in FIG. 2, two Hall IC elements 8a and 8b as moving end detecting means are formed on the bottom surface of the case 4, and the magnetic force generated from the magnet formed on the bulging portion 6c is detected. It has come to be able to do.
[0031]
More specifically, the two Hall IC elements 8a and 8b include a bulging portion 6c when the lock bar 2 is in the locked position and a bulging portion 6c when the lock bar 2 is in the unlocking position. When one Hall IC element 8a detects the magnetic force generated from the magnet formed in the bulging portion 6c, it can be detected that the lock bar 2 has reached the moving end at the unlock position. At the same time, when the other Hall element 8b detects the magnetic force, it can be detected that the lock bar 2 has reached the moving end at the lock position.
[0032]
These Hall IC elements 8a and 8b are electrically connected to drive control means (not shown) for controlling the drive of the motor M, and the motor M is based on the detection values detected by the Hall IC elements 8a and 8b. Is configured to be controlled. Thereby, the overrun of the 1st interlocking member 6 can be avoided, and the movement of the lock bar 2 can be accurately performed between the moving ends, and the reliability of the handle lock device can be improved. In addition, since the non-contact type Hall IC elements 8a and 8b are used for detecting the moving end of the lock bar 2, sliding friction does not occur and the life can be improved.
[0033]
According to the handle lock device having the above-described configuration, the motor M and the lock bar 2 are connected to each other via the first interlocking member 6 movable in mesh with the feed screw shaft 5 and the tooth surface thereof, and the second interlocking member 7 interlocking therewith. Since they are connected, the lock bar 2 does not move unless the motor M is driven to rotate, and an inadvertent operation of the lock bar 2 can be avoided. Therefore, the safety of the handle lock device that can move the lock bar 2 by the motor M can be further improved.
[0034]
Although the present embodiment has been described above, the present invention is not limited to this. For example, if the lock bar can be advanced and retracted by the driving means and the handle bar can be locked or unlocked, the feed screw shaft can be used. It is good also as what does not intervene. However, even in that case, when a load exceeding a predetermined value is applied to the lock bar, it is necessary to include an overload absorbing means for absorbing the load.
[0035]
Further, the overload absorbing means is not limited to that of the above embodiment, and may be another elastic member instead of the spring. Of course, other members (for example, cylinders) may be used as long as they can absorb a predetermined load or more applied to the lock bar. Furthermore, in this embodiment, the Hall IC element as a non-contact type sensor is used as the moving end detection means. However, a contact type sensor may be used as well as other types of non-contact type sensors. .
[0036]
In this embodiment, the present invention is applied to a handle lock device for a two-wheeled vehicle, but may be applied to a four-wheeled vehicle, ATV, snowmobile, jet ski, or the like.
[0037]
【The invention's effect】
According to the first aspect of the present invention, when a predetermined load or more is applied to the lock bar that is moved by the driving means, the load can be absorbed by the overload absorbing means, so that the handle bar is locked or unlocked. In doing so, even if an overload occurs on the lock bar that is moved by the driving means, problems such as breakage of the lock bar and deformation of the engagement hole can be avoided.
[0038]
In addition , when a load greater than a predetermined value is applied to the lock bar in the process of moving the lock bar from the unlock position to the lock position, the first elastic member absorbs the load and the drive means moves to the lock bar. Since the transmission of the driving force is cut off, problems such as breakage of the lock bar and deformation of the engagement hole can be avoided even if an overload occurs on the lock bar that is moved by the drive means when the handle bar is locked.
[0039]
Further , when a load exceeding a predetermined value is applied to the lock bar in the process of moving the lock bar from the locked position to the unlocked position, the second elastic member absorbs the load and locks from the driving means. Since the transmission of the driving force to the bar is cut off, it is possible to avoid problems such as breakage of the lock bar and deformation of the engagement hole even if an overload occurs on the lock bar that is moved by the drive means when the handle bar is unlocked Can do.
[0040]
According to the second aspect of the present invention, the driving means comprises the motor, and the motor and the lock bar are connected via the feed screw shaft and the interlocking member movable so as to mesh with the toothed surface, so that the motor rotates. Unless it is driven, the lock bar does not move, and an inadvertent operation of the lock bar can be avoided. Therefore, the safety of the handle lock device that can move the lock bar by the motor can be further improved.
[0041]
According to the invention of claim 3 , since the drive of the driving means is controlled based on the detection value by the moving end detecting means, the lock bar can be accurately moved between the moving ends. Reliability can be improved.
[Brief description of the drawings]
FIG. 1 is a left side view and a plan view of a handle lock device according to an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along line II-II in FIG. The perspective view which shows the connection state of a feed screw shaft, a 1st interlocking member, a 2nd interlocking member, and a lock bar. FIG. 4 is explanatory drawing (normal state) which shows operation | movement of the lock spring in the handle | steering-wheel lock apparatus which concerns on embodiment of this invention.
FIG. 5 is an explanatory view showing the operation of the lock spring in the handle lock device according to the embodiment of the present invention (a state in which an overload is absorbed).
FIG. 6 is an explanatory view (normal state) showing the operation of the return spring in the handle lock device according to the embodiment of the present invention.
FIG. 7 is an explanatory diagram showing the operation of the return spring in the handle lock device according to the embodiment of the present invention (a state in which an overload is absorbed).
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Handle locking device main body 1a ... Protrusion part 2 ... Lock bar 3 ... Motor frame 4 ... Case 5 ... Feed screw shaft 6 ... 1st interlocking member 7 ... 2nd interlocking member 8a, 8b ... Hall IC element (moving end detection means) )
M: Motor (drive means)
P1 .. return spring ( second elastic member)
P2: Lock spring ( first elastic member)

Claims (3)

A handle lock device capable of locking the handle bar by providing an engagement hole in a steering shaft that forms a rotation axis of a handle bar of a vehicle, and inserting a lock bar into the engagement hole,
Drive means for moving the lock bar between a lock position in which the tip of the lock bar is inserted into the engagement hole and an unlock position in which the tip is separated from the engagement hole;
An overload absorbing means capable of absorbing the load when a load of a predetermined value or more is applied to the lock bar moved by the driving means;
Equipped with a,
The overload absorbing means includes a first elastic member and a second elastic member interposed between the lock bar and the driving means, and the overload absorbing means is interposed via the first elastic member and the second elastic member. When the driving force of the driving means is transmitted to the lock bar and a load of a predetermined level or more is applied to the lock bar in the process of moving the lock bar from the unlock position to the lock position, the load is transferred to the lock bar. The transmission of the driving force from the driving means to the lock bar is cut off while being absorbed by one elastic member, and the lock bar moves from the lock position to the unlock position in the process of moving over a predetermined amount with respect to the lock bar. When a load is applied, the handle locks the transmission of the driving force from said driving means while absorbing the load the second elastic member to the locking bar, characterized in that it is cut off Location. The driving means includes a motor that is connected to the feed screw shaft and rotates the feed screw shaft, and includes an interlocking member that can move in mesh with a tooth surface of the rotating feed screw shaft, and the lock on the interlocking member. steering lock device according to claim 1, wherein the bar is attached. The lock bar comprises a detectable moving end detecting means that is located in the moving end, according to claim 1 or, characterized in that for controlling the drive of said drive means on the basis of a value detected by the mobile terminal detecting means The handle lock device according to claim 2 .

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