JP2023183855A - steering lock device - Google Patents

Abstract

To provide a steering lock device that is configured so that water hardly intrudes into a case member and can appropriately eject the water intruding into the case member.SOLUTION: A steering lock device comprises a lock bar R mounted on a case member 2 and makes the lock bar R lock to a steering W of a vehicle to perform steering lock by advancing the rock bar so that the bar protrudes, and can release the locking to the steering W to release the steering lock, by retreating the lock bar R so that the bar is embedded, where the case member 2 has a storage space opened downward and an opening of the space is covered with a cover member 3, and a drainage hole 3a is formed in the cover member 3.SELECTED DRAWING: Figure 3

Description

The present invention relates to a steering lock device for locking and releasing the steering lock.

2. Description of the Related Art Two-wheeled vehicles and the like are usually provided with a steering lock device for preventing vehicle theft by locking a lock bar by engaging a steering wheel (such as a rotating shaft of a handlebar). However, the present applicant has proposed a steering lock device, as disclosed in Patent Document 1, for example, in which the lock bar can be moved in and out by driving a drive source such as a motor.

JP2017-81347A

If the above-mentioned conventional steering lock device is exposed to rainwater while attached to a vehicle, water may enter and accumulate inside the case member, which may hinder the movement of the lock bar. Ta. In particular, when a motor or a solenoid is used as a drive source for the lock bar, if water infiltrates and accumulates inside the case member of the steering lock device, electrical problems such as short circuits may occur.

The present invention has been made in view of the above circumstances, and its purpose is to provide a structure that prevents water from entering the inside of the case member, and to effectively drain water that has entered the inside of the case member. The purpose of the present invention is to provide a steering lock device that can

The invention according to claim 1 includes a lock bar attached to a case member, and by moving the lock bar forward and projecting it, it locks the steering wheel of the vehicle and locks the steering wheel. In the steering lock device that can release the lock on the steering wheel by retracting the bar and retracting the bar, the case member has a housing space opened downward, and the opening is covered with a cover. It is characterized in that it is covered with a member, and a drain hole is formed in the cover member.

The invention according to claim 2 is the steering lock device according to claim 1, which includes a contact point attached to the lock bar, and a contact plate on which an electric circuit is formed according to a contact position with the contact point, The present invention is characterized by comprising a detection means capable of detecting the position of the lock bar based on an electric circuit formed between the contact point and the contact plate.

According to a third aspect of the invention, in the steering lock device according to the second aspect, the contact plate is formed on a top surface or a side surface of the case member.

According to a fourth aspect of the present invention, in the steering lock device according to the third aspect, the contact plate is formed of a metal member insert-molded on the top surface or side surface of the case member.

The invention according to claim 5 is the steering lock device according to claim 1, which includes a biasing member that maintains the lock bar in a protruding state, and a plunger that can be displaced by a magnetic force generated by energizing a coil and a magnetic force of a permanent magnet. and a self-holding solenoid in which the plunger is connected to the lock bar and maintains the lock bar in a retracted state by the magnetic force of the permanent magnet.

According to the invention of claim 1, the case member has a housing space that opens downward, and the opening is covered with the cover member, and the cover member has a drain hole. The case member has a structure that prevents water from entering inside the case member, and the water that has entered the inside of the case member can be efficiently discharged.

According to the invention of claim 2, the lock bar includes a contact point attached to the lock bar, a contact plate on which an electric circuit is formed according to the contact position with the contact point, and a contact plate formed between the contact point and the contact plate. Since the detection means capable of detecting the position of the lock bar based on an electric circuit is provided, a sensor for confirming the position of the lock bar can be eliminated, and manufacturing costs can be suppressed.

According to the invention of claim 3, since the contact plate is formed on the top or side surface of the case member, it is possible to create a structure in which water that has entered the inside of the case member does not easily reach the contact plate, thereby preventing electrical malfunctions. The occurrence of can be suppressed.

According to the invention of claim 4, since the contact plate is made of a metal member insert-molded on the top or side surface of the case member, it is possible to prevent the contact plate from shifting with respect to the case member, and to adjust the position of the lock bar. can be detected with high accuracy.

According to the invention of claim 5, the lock bar has an urging member that maintains the lock bar in a protruding state, and a plunger that can be displaced by the magnetic force generated by energizing the coil and the magnetic force of the permanent magnet, and the plunger is connected to the lock bar. Since the lock bar is equipped with a self-holding solenoid that maintains the lock bar in a retracted state using the magnetic force of a permanent magnet, the lock bar can be moved smoothly using the solenoid, and the solenoid does not need to be continuously energized. It is also possible to maintain the immersive state of the lock bar.

An external perspective view showing a steering lock device (lock bar in a protruding state) according to a first embodiment of the present invention Four side views showing the appearance of the steering lock device III-III line sectional view in Figure 2 External perspective view showing the steering lock device (lock bar retracted) A cross-sectional view of the same steering lock device showing the lock bar in the retracted state A perspective view showing the steering lock device with the case member removed. An exploded perspective view showing the cover member, self-holding solenoid, lock bar, connecting member, contacts, etc. in the steering lock device. A three-sided view showing the case member of the steering lock device. A perspective view showing the case member A perspective view showing a self-holding solenoid in the steering lock device A perspective view showing a connecting member and contact points in the steering lock device. A plan view showing the contact plate in the steering lock device A perspective view showing the contact plate Schematic diagram showing the steering lock device installed on a vehicle Schematic diagram showing the steering lock device installed on a vehicle

Embodiments of the present invention will be specifically described below with reference to the drawings.
A steering lock device 1 according to the embodiment is attached to a vehicle such as a two-wheeled vehicle to lock and release the steering lock, and includes a lock bar R attached to a case member 2, as shown in FIGS. 1 to 3. As shown in FIGS. 4 and 5, the lock bar R is moved forward and protruded to lock the steering wheel of the vehicle, and as shown in FIGS. By setting it in this state, it is possible to release the lock to the steering wheel and release the steering lock.

Specifically, as shown in FIGS. 1 to 13, the steering lock device 1 according to the present embodiment includes a lock bar R, an urging member 5 that holds the lock bar R in a protruding state, and a steering lock device 1 that can be displaced by energization. It includes a self-holding solenoid S having a plunger P, a case member 2 made of a box-shaped molded product, a cover member 3 that covers the opening of the case member 2, a connecting member 6, a control means 11, and a detection means 12. It is configured as follows.

As shown in FIGS. 6 and 7, the lock bar R consists of a shaft-like member attached to the case member 2, and is moved forward or backward by the urging force of the urging member 5 and the plunger P displaced by the energization of the self-holding solenoid S. It retreats into a protruding state (see FIG. 1) or a retracted state (see FIG. 4). When the lock bar R is in the protruding state, as shown in FIG. When the lock bar R is in the retracted state, as shown in FIG. 5, the tip of the lock bar R separates from the recess K, and the steering wheel W is released from the recess K, thereby releasing the steering lock.

As shown in FIG. 3, the biasing member 5 is composed of a coil spring attached between the connecting member 6 and the lid member Fa that constitutes the self-holding solenoid S, and its biasing force causes the lock bar R to be moved as shown in FIG. It can be held in the protruding state by biasing it toward the left side. The biasing member 5 is not limited to a coil spring, but may be another type of spring (such as a torsion coil spring) or an elastic body (such as an elastic rubber material or resin).

The self-holding solenoid S is an actuator that is attached to a predetermined position of the case member 2 and can displace the plunger P by applying electricity, and as shown in FIG. , a pipe-like member 9, and a frame portion F. Further, the self-holding solenoid S according to the present embodiment has a plunger P that can be displaced by the magnetic force generated by energizing the coil C and the magnetic force of the permanent magnets Ma and Mb, and the plunger P is connected to the lock bar R. The lock bar R can be held in the retracted state by the magnetic force of the permanent magnets Ma and Mb.

The frame part F constitutes the housing of the self-holding solenoid S, and as shown in FIGS. , Mb and the pipe-like member 9 are attached and fixed at a predetermined position on the cover member 3. Note that, as shown in FIG. 10, a plate-shaped lid member Fa is fixed to the end of the frame portion F by caulking or the like.

As shown in FIGS. 6 and 7, the cover member 3 is made of a metal part bent into an L-shape, and a lock bar R is inserted into the raised portion formed by the bending process to move it forward or backward. An opening 3b is formed in which the opening 3b is obtained. Further, the cover member 3 is located below when the steering lock device 1 is assembled to the vehicle, and has a drain hole 3a formed at a predetermined position as shown in FIGS. 1, 2, 4, and 7. ing.

The coil C can be energized via a wiring h (see FIGS. 7 and 10), and is configured to generate magnetism when energized and to displace the plunger P by the magnetic force. The plunger P is housed within the pipe-like member 9 and is assembled with its base end located within the coil C. Note that a receiving member 10 (see FIG. 7) is attached to the frame portion F, and the base end of the pipe-like member 9 is fixed to the receiving member 10, and the base end Pb of the plunger P can be received. It looks like this.

The pipe-like member 9 is made of a cylindrical metal part having high electrical conductivity, such as brass, and accommodates the plunger P movably therein, and has permanent magnets Ma and Mb attached thereto. The permanent magnets Ma and Mb are two permanent magnets with the same polarity (S poles or N poles), and are fixed between the outer circumferential surface of the pipe-shaped member 9 and the inner circumferential surface of the frame portion F. be.

However, in this embodiment, a connecting member 6 is provided that connects the plunger P and the lock bar R in the longitudinal direction (substantially in a straight line) and moves the lock bar R with respect to the displacement direction of the plunger P. That is, as shown in FIG. 7, a groove Pa is formed in the circumferential direction at the tip of the plunger P, and a groove Pa is formed in the base end of the lock bar R in the circumferential direction, as shown in FIG. A groove Ra is formed across the plunger P and the lock bar R, and when the grooves Pa and Ra of the plunger P and the lock bar R are locked to the locking parts 6a and 6b of the connecting member 6, the plunger P and the lock bar R are connected. has been done.

When the coil C is not energized, the attraction force of the plunger P due to the magnetic force of the permanent magnets Ma and Mb is set to be larger than the urging force of the urging member 5, and as shown in FIG. This state is maintained, and the retracted state of the lock bar R is maintained. When a current is applied to the coil C in a predetermined direction from this immersed state (forward energization), the magnetic force generated in the coil C and the magnetic force caused by the permanent magnets Ma and Mb cancel each other out, as shown in FIG. As shown, the plunger P slides within the pipe-like member 9 due to the biasing force of the biasing member 5, and the lock bar R is brought into a protruding state.

Furthermore, when a current is applied to the coil C in the opposite direction to the predetermined direction from this protruding state (reverse direction energization), the magnetic force generated in the coil C and the magnetic force of the permanent magnets Ma and Mb act in the same direction. As shown in FIG. 5, the plunger P slides within the pipe-shaped member 9 due to the magnetic force generated by the coil C and the magnetic force of the permanent magnets Ma and Mb, and the lock bar R is brought into the retracted state. When energization is terminated in such a retracted state, the retracted state of the lock bar R is maintained by the magnetic force of the permanent magnets Ma and Mb.

Therefore, according to the self-holding solenoid S, when the coil C is not energized, the retracted state of the lock bar R is maintained by the magnetic force of the permanent magnets Ma and Mb, and current is applied to the coil C in a predetermined direction (sequentially). The lock bar R can be moved to the protruding state by applying current to the coil C in the opposite direction to the predetermined direction (current being applied in the opposite direction), and the lock bar R can be moved to the retracted state by applying current to the coil C in the opposite direction to the predetermined direction (current being applied in the opposite direction).

The case member 2 is made of a cup-shaped member that opens downward, and, as shown in FIGS. 8 and 9, is formed with a connector portion 2a to which a tip end of a wiring extending from the vehicle body can be connected. As shown in FIGS. 3 and 5, the case member 2 houses the self-holding solenoid S, the lock bar R, the connecting member 6, etc., and the housing space is closed by the cover member 3. It has become. Note that a fastening member 4 is attached to one end side of the case member 2 and cover member 3, as shown in FIGS. 1 to 5, and the steering lock device 1 is attached to a predetermined position of the vehicle by the fastening member 4. Become.

As described above, the connecting member 6 connects the plunger P and the lock bar R, and as shown in FIGS. When moving between the two, the contact 7 can slide on the top surface T of the case member 2. Further, as shown in FIG. 9, a contact plate 8 is formed on the top surface T of the case member. This contact plate 8 is made of a metal member (conductive member) insert-molded on the top surface T of the case member 2, and as shown in FIGS. 12 and 13, a first contact plate 8a, a second contact plate 8b, and a It has three contact plates 8c, a fourth contact plate 8d, and a fifth contact plate 8e.

The first contact plate 8a and the second contact plate 8b are connected to the wiring h extending from the positive terminal and the negative terminal of the self-holding solenoid S via the terminal parts f and g, and the terminal parts a and b It is possible to connect to the control means 11 via. This control means 11 consists of a microcomputer installed on the vehicle body side, is electrically connected to the self-holding solenoid S via terminals a, b, terminals f, g, and wiring h, and is activated at any timing. The coil C of the self-holding solenoid S can be energized.

The third contact plate 8c, the fourth contact plate 8d, and the fifth contact plate 8e form an electric circuit according to the contact position with the contact 7 when the contact 7 moves together with the connecting member 6, and the terminal portion It is connected to the detection means 12 via c to e. Like the control means 11, the detection means 12 is composed of a microcomputer installed on the vehicle body side, and is connected to the third contact plate 8c, the fourth contact plate 8d, and the fifth contact plate 8e, respectively.

When the lock bar R is in the protruding state and the contact point 7 is in the position H1 (see FIG. 12), the third contact plate 8c and the fifth contact plate 8e are electrically connected to form an electric circuit. , when the lock bar R is in the retracted state and the contact point 7 is in the position H2 (see FIG. 12), the fourth contact plate 8d and the fifth contact plate 8e are electrically connected to form an electric circuit. It has become.

Therefore, since the detection means 12 is connected to the third contact plate 8c, the fourth contact plate 8d, and the fifth contact plate 8e, respectively, the contact point 7 and the contact plate 8 (the third contact plate 8c, the fourth contact plate 8d The position of the lock bar R can be detected based on the electric circuit formed between the contact plate 8e) and the fifth contact plate 8e), and the position of the lock bar R can be detected without providing a separate sensor such as a non-contact sensor. A protruding or recessed state can be detected.

However, if, for example, the lock bar R is not properly locked and the retracted state is not achieved due to an inadvertent load being applied, the coil C is energized in the opposite direction to move the lock bar R from the protruding state to the retracted state. Even if an attempt is made to do so, the protruding state will be maintained. Therefore, in this embodiment, when the coil C is energized (energized in the opposite direction) to attract the plunger P, and the detection means 12 detects that the lock bar R is in the protruding position, The control means 11 controls the coil C to be repeatedly energized a predetermined number of times.

In this way, in this embodiment, by detecting the position of the lock bar R with the detection means 12, it is possible to know that the lock bar R does not change from the protruding state to the retracted state due to a locking failure or the like. By repeatedly energizing the coil C a predetermined number of times by the control means 11 (for example, repeatedly energizing a plurality of times, once per second), it is possible to promote the elimination of the locking failure and to bring the lock bar R into the retracted state. can.

In this case, it is effective to repeat energization in the reverse direction a plurality of predetermined times by the control means 11, but between multiple energizations in the reverse direction (energization for moving the lock bar R to the retracted state), the forward direction (energization for moving the lock bar R to the protruding state) may be performed. By energizing in the forward direction in addition to energizing in the reverse direction, it can be expected that the lock bar R will be slightly vibrated, and the locking failure can be more smoothly resolved.

Here, as shown in FIG. 9, the case member 2 of the steering lock device 1 according to the present embodiment has a housing space opened downward, and the opening is covered with a cover member 3. Additionally, as shown in FIGS. 1 to 5 and 7, a drain hole 3a is formed at a predetermined position of the cover member 3. The steering lock device 1 according to this embodiment is adapted to be attached to a bracket B (upper bracket) of a two-wheeled vehicle, as shown in FIGS. 14 and 15.

The applicable two-wheeled vehicle is equipped with a front tire G, a handlebar J that can operate the steering wheel W, and a pair of front forks D, and a steering lock device 1 is fixed to a bracket B that connects the pair of front forks D. There is. In the steering lock device 1 fixed in this way, since the case member 2 is located at the upper part and the cover member 3 is located at the lower part, it is difficult for water to enter the inside of the case member 2. Water can be prevented from reaching the contact plate 8. Moreover, even if water intrudes into the inside of the case member 2, it can be efficiently drained from the water drain hole 3a.

Therefore, according to the present embodiment, the case member 2 has a housing space opened downward, and the opening is covered with the cover member 3, and the cover member 3 is formed with the drain hole 3a. As a result, the case member 2 has a structure in which water does not easily enter the inside, and the water that has entered the inside of the case member 2 can be efficiently discharged.

It also has a contact 7 attached to the lock bar R and a contact plate 8 on which an electric circuit is formed according to the contact position with the contact 7, and an electric circuit formed between the contact 7 and the contact plate 8. Since the detection means 12 capable of detecting the position of the lock bar R based on a circuit is provided, a sensor for confirming the position of the lock bar R can be omitted, and manufacturing costs can be suppressed.

In particular, since the contact plate 8 according to this embodiment is formed on the top surface T of the case member 2, the structure can be such that water that has entered the inside of the case member 2 is difficult to reach the contact plate 8, and the electrical The occurrence of defects can be suppressed. Furthermore, since the contact plate 8 according to this embodiment is made of a metal member insert-molded on the top surface T of the case member 2, it is possible to prevent the contact plate 8 from shifting relative to the case member 2, and the lock bar R The position of can be detected with high accuracy.

Furthermore, it has a biasing member 5 that maintains the lock bar R in a protruding state, and a plunger P that can be displaced by the magnetic force generated by energizing the coil C and the magnetic force of the permanent magnets (Ma, Mb), and the plunger P is locked. Since it is equipped with a self-holding solenoid S that is connected to the bar R and maintains the lock bar R in a retracted state by the magnetic force of the permanent magnets (Ma, Mb), the lock bar R can be smoothly moved by the solenoid. In addition, the retracted state of the lock bar R can be maintained without continuously energizing the solenoid.

In addition, according to the present embodiment, the biasing member 5 that holds the lock bar R in a protruding state and the plunger P that can be displaced by the magnetic force generated by energizing the coil C and the magnetic force of the permanent magnets (Ma, Mb) are provided. a self-holding solenoid S in which the plunger P is connected to the lock bar R and holds the lock bar R in a retracted state by the magnetic force of the permanent magnets (Ma, Mb); and a detection means for detecting the position of the lock bar R. 12, the coil C is energized to attract the plunger P, and when the detection means 12 detects that the lock bar R is in the protruding position, the coil C is repeatedly energized a predetermined number of times. Therefore, the lock bar R can be moved by the solenoid, and even if the lock bar R is not properly locked to the steering wheel W, continuous energization of the coil C can be avoided and overheating of the solenoid can be prevented. .

Furthermore, since the self-holding solenoid S has a pipe-shaped member 9 that accommodates the plunger P and is attached with permanent magnets (Ma, Mb), the plunger P can be smoothly displaced, and the permanent magnet (Ma, Mb) can be reliably attached to a predetermined position.

Although the present embodiment has been described above, the present invention is not limited thereto. For example, the drive source for advancing and retracting the lock bar R is not limited to a self-holding solenoid, but may also be a non-self-holding solenoid or a motor. It may be possible to use other actuators such as, or to transmit the driving force of the drive source to the lock bar R using a link or a cam. Further, although the contact plate 8 according to the present embodiment is formed on the top surface T of the case member 2, it may be formed on the side surface of the case member 2.

Furthermore, the connecting member that connects the plunger P and the lock bar R may be of other forms, such as one that connects the plunger P and the lock bar R in a straight line in the longitudinal direction as in this embodiment, The plunger P and the lock bar R may be connected in a substantially orthogonal direction, or the plunger P and the lock bar R may be connected in a direction having a predetermined angle. Note that although this embodiment is applied to a two-wheeled vehicle, it may be applied to other types of vehicles.

If the case member has a housing space that opens downward, and the opening is covered with a cover member, and the steering lock device has a water drain hole formed in the cover member, the external shape will be different. It may also be a product or a product with other functions added.

1 Steering lock device 2 Case member 2a Connector portion 3 Cover member 3a Drain hole 3b Opening portion 4 Fastening member 5 Biasing member (coil spring)
6 Connecting members 6a, 6b Locking portion 7 Contact point 8 Contact plate 9 Pipe-shaped member 10 Receiving member 11 Control means 12 Detection means S Self-holding solenoid C Coil F Frame portion Fa Cover member P Plunger Pa Groove Pb Base end portion P1 Insertion Hole R Lock bar Ra Groove T Top W Steering K Recess Ma, Mb Permanent magnet h Wiring J Handlebar B Bracket D Front fork G Front tire

Claims (5)

The case member includes a lock bar attached to the case member, and the lock bar is advanced to a protruding state to lock the steering wheel of the vehicle, and the lock bar is moved back to a retracted state. In a steering lock device capable of releasing the lock on the steering wheel and releasing the steering lock by
The steering lock device is characterized in that the case member has a housing space that opens downward, and the opening is covered with a cover member, and a drain hole is formed in the cover member. It has a contact point attached to the lock bar, and a contact plate on which an electric circuit is formed according to the contact position with the contact point, and the electric circuit is formed between the contact point and the contact plate. The steering lock device according to claim 1, further comprising detection means capable of detecting the position of the lock bar. The steering lock device according to claim 2, wherein the contact plate is formed on a top surface or a side surface of the case member. 4. The steering lock device according to claim 3, wherein the contact plate is made of a metal member insert-molded on a top surface or a side surface of the case member. a biasing member that maintains the lock bar in a protruding state;
A self-holding solenoid having a plunger that can be displaced by the magnetic force generated by energizing the coil and the magnetic force of a permanent magnet, and the plunger is connected to the lock bar and maintains the lock bar in a retracted state by the magnetic force of the permanent magnet. and,
The steering lock device according to claim 1, further comprising the following.

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