TW202413169A - steering lock device - Google Patents

Abstract

Provided is a steering lock device which can move a lock bar by means of a solenoid and prevent overheat of the solenoid by avoiding continuous conduction for a coil even when locking of the lock bar for steering fails. The steering lock device comprises: an urging member 17 which holds a lock bar R in a projecting state; self-holding solenoid S which has a plunger P that can be displaced by a magnetic force generated by the conduction of a coil C and a magnetic force of permanent magnets (Ma, Mb), and holds the lock bar R in a recessed state by means of the magnetic force of the permanent magnets (Ma, Mb) in a state where the plunger P is connected with the lock bar R; and a detection means 12 which detects the position of the lock bar R, wherein the coil C is conducted and the plunger P is suctioned, and when the lock bar R in the detection means 12 is detected to be at a position at which the lock bar R is in a projecting state, the coil C is repetitively conducted for a prescribed number of times.

Description

Steering lock

The present invention relates to a steering lock device for executing steering lock and releasing thereof.

In motorcycles, etc., a steering lock device is usually provided to lock the steering (rotating shaft of the handlebar, etc.) by locking the lock rod to prevent the vehicle from being stolen. For this purpose, the applicant has proposed a steering lock device disclosed in, for example, Patent Document 1, which can control the extension and retraction of the lock rod by driving a motor. ＜Prior Technical Document＞ ＜Patent Document＞

＜Patent Document 1＞ JP 2017-81347 A

Problems to be solved by the invention In the above-mentioned conventional steering lock device, although a motor is used as the driving source of the lock rod, the applicant considers using a solenoid instead of a motor in order to improve the response speed of the lock rod. However, since the solenoid displaces the plunger through the magnetic force generated by energizing the coil, if the lock rod does not lock the steering properly, there is a risk of overheating due to the coil being continuously energized for a long time.

The present invention is aimed at the above situation and provides a steering lock device, so that the lock rod can be moved by a solenoid, and even if the lock rod does not lock the steering direction well, the coil can be prevented from being continuously energized to prevent the solenoid from overheating.

Technical means for solving the problem The invention described in claim 1 provides a steering lock device, which has a lock rod mounted on a housing element, and the steering of the vehicle is locked by a forward protruding state of the lock rod, and the steering lock is released by a backward retracting state of the lock rod, and the steering lock is released, which includes: a deflection element, which keeps the lock rod in a protruding state; a self-holding solenoid, which has A plunger that can be displaced by the magnetic force generated by energizing a coil and the magnetic force of a permanent magnet, the plunger is connected to the lock rod and the magnetic force of the permanent magnet keeps the lock rod in a retracted state; and a detection component for detecting the position of the lock rod; when the coil is energized to attract the plunger, and the detection component detects that the lock rod is in the protruding state, the coil is repeatedly energized for a predetermined number of times.

The invention described in claim 2 is that in the steering lock device described in claim 1, the self-holding solenoid has a tubular element that accommodates the plunger and is equipped with the permanent magnet.

The invention described in claim 3 is that in the steering lock device described in claim 1, the detection component has a contact point that can be installed in a linkage manner with the lock rod, and a contact plate that forms a circuit corresponding to the contact position of the contact point, and the position of the lock rod can be detected based on the circuit formed between the contact point and the contact plate.

The invention described in claim 4 is that in the steering lock device described in claim 3, the contact plate is composed of a metal component insert-molded in the housing component.

The invention described in claim 5 is a steering lock device described in claim 3, further comprising a connecting element to connect the plunger and the lock rod along the length direction and to enable the lock rod to move relative to the displacement direction of the plunger, and the contact point is mounted on the connecting element.

The invention described in claim 6 is a steering lock device described in claim 3, further comprising a connecting element to connect the plunger and the lock rod in a substantially vertical direction and to enable the lock rod to move in a direction substantially vertical to the displacement direction of the plunger, and the contact point is mounted on the connecting element.

Effect of the invention According to the invention of claim 1, the invention has a deflection element for keeping the lock rod in a protruding state; a plunger that can be displaced by the magnetic force generated by the energization of the coil and the magnetic force of the permanent magnet, and the plunger is connected to the lock rod and keeps the lock rod in a retracted state by the magnetic force of the permanent magnet; and a detection component for detecting the position of the lock rod. When the coil is energized to attract the plunger, and the detection component detects that the lock rod is in a protruding state, the coil is repeatedly energized a predetermined number of times, so that the lock rod can be moved by the solenoid, and even if the lock rod is poorly locked to the rotation direction, the coil can be prevented from being continuously energized to prevent the solenoid from overheating.

According to the invention of claim 2, since the self-holding solenoid has a tubular element on which a permanent magnet is mounted while accommodating the plunger, the displacement of the plunger can be performed smoothly and the permanent magnet can be securely installed at a predetermined position.

According to the invention of claim 3, since the detection component has a contact point that can be installed in conjunction with the lock rod, and a contact plate that forms a circuit corresponding to the contact position of the contact point, and is capable of detecting the position of the lock rod based on the circuit formed between the contact point and the contact plate, it is unnecessary to use a sensor to confirm the positioning of the lock rod, thereby reducing the manufacturing cost.

According to the invention of claim 4, since the contact plate is composed of a metal component insert-molded in the housing component, it is possible to prevent the contact plate from being misaligned with respect to the housing component, and the position of the lock rod can be accurately detected.

According to the invention of claim 5, since it includes a connecting element that connects the plunger and the lock rod along the length direction and enables the lock rod to move relative to the displacement direction of the plunger, and the contact point is installed on the connecting element, the connecting element can accurately follow the lock rod and accurately detect the position of the lock rod.

According to the invention of claim 6, since it includes a connecting element that connects the plunger and the lock rod in a basically vertical direction and enables the lock rod to move in a direction basically vertical to the displacement direction of the plunger, and the contact point is installed on the connecting element, the connecting element can accurately follow the lock rod and accurately detect the position of the lock rod.

The following will specifically describe the embodiments of the present invention with reference to the accompanying drawings. The steering lock device 1 of the first embodiment is mounted on a vehicle such as a motorcycle and is used to perform steering lock and release. It has a lock rod R mounted on a housing element 2, and as shown in FIGS. 1 to 3, the steering of the vehicle is locked by the forward protruding state of the lock rod R to perform steering lock, and as shown in FIGS. 4 and 5, the steering lock can be released by releasing the locking of the steering by retracting the lock rod R backward.

Specifically, the steering lock device 1 of the present embodiment is as shown in FIGS. 1 to 13 , and comprises a lock rod R, a deflection element 5 for maintaining the lock rod R in a protruding state, a self-retaining solenoid S having a plunger P that can be displaced by energizing, a housing element 2 composed of a box-shaped molded product, a cover element 3 covering an opening of the housing element 2, a connecting element 6, a control component 11, and a detection component 12.

As shown in FIGS. 6 and 7 , the lock rod R is composed of a shaft-shaped member mounted on the housing member 2, and forms a protruding state (see FIG. 1 ) or a retracted state (see FIG. 4 ) forward or backward by the plunger P displaced by the energization of the self-holding solenoid S and the bias force of the biasing member 5. Then, when the lock rod R is in the protruding state, as shown in FIG. 3 , the tip end of the lock rod R is locked with the recess K formed in the steering wheel W of the vehicle to perform the steering lock, and when the lock rod R is in the retracted state, as shown in FIG. 5 , the tip end of the lock rod R is separated from the recess K, and the locking of the recess K of the steering wheel W is released to release the steering lock.

As shown in FIG3 , the deflection element 5 is composed of a coil spring installed between the connection element 6 and the cover member Fa constituting the self-holding solenoid S, and the lock rod R is deflected to the left in FIG3 by its deflection force so as to be kept in the protruding state. The deflection element 5 is not limited to a coil spring, and may be other types of springs (torsion coil springs, etc.) or elastic bodies (elastic rubber materials or resins, etc.).

The self-holding solenoid S is an actuator that is mounted at a predetermined position of the housing member 2 and can displace a plunger P by energizing, and as shown in FIG10 , is composed of a coil C, a plunger P, permanent magnets Ma and Mb, a tubular member 9, and a frame portion F. In addition, the self-holding solenoid S of 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 rod R and the lock rod R can be held in a retracted state by the magnetic force of the permanent magnets Ma and Mb.

The frame portion F is an outer frame of the self-holding solenoid S, and as shown in FIGS. 6 and 7, is made of a metal member bent into a U-shape, and is mounted with a coil C, a plunger P, permanent magnets Ma, Mb, and a tubular member 9, and is fixed to a predetermined position on the cover member 3. In addition, the end of the frame portion F is fixed to a plate-like cover member Fa by riveting or the like, as shown in FIG. 10.

The cover element 3 is made of a metal part bent into an L shape as shown in Figs. 6 and 7, and an opening 3b is formed at the part that is bent and raised so that the lock rod R can be inserted and move forward and backward. In addition, the cover element 3 is located at the bottom when the steering lock device 1 is assembled on the vehicle, and a drainage hole 3a is formed at a predetermined position as shown in Figs. 1, 2, 4, and 7.

The coil C is configured to be energized through the wire h (see FIGS. 7 and 10 ), and magnetism is generated by the energization, and the plunger P is displaced by its magnetic force. The plunger P is accommodated in the tubular element 9 and assembled so that its base end side is located in the coil C. In addition, a receiving element 10 (see FIG. 7 ) is mounted on the frame portion F, and the base end of the tubular element 9 is fixed to the receiving element 10, and the base end Pb of the plunger P can be received.

The tubular element 9 is made of a cylindrical metal member with high electrical conductivity such as brass, so that the plunger P is displaceably accommodated therein, and permanent magnets Ma and Mb are installed. The permanent magnets Ma and Mb are a combination of two mutually homopolar (two S poles or two N poles) and are fixed between the outer peripheral surface of the tubular element 9 and the inner peripheral surface of the frame portion F.

Furthermore, in the present embodiment, a connecting element 6 is provided to connect the plunger P and the lock rod R in the length direction (substantially in a straight line) and to move the lock rod R relative to the displacement direction of the plunger P. That is, a groove Pa is formed in the circumferential direction at the tip end of the plunger P as shown in FIG. 7 , and a groove Ra is formed in the circumferential direction at the base end of the lock rod R as shown in the same figure, and the plunger P and the lock rod R are connected by locking the grooves Pa and Ra of the plunger P and the lock rod R at the locking portions 6a and 6b of the connecting element 6.

Next, when the coil C is not energized, the magnetic force of the permanent magnets Ma and Mb is set to attract the plunger P to be greater than the deflection force of the deflection element 5, so as shown in Figure 5, the state of attracting the plunger P is maintained, and the lock rod R is kept in the retracted state. In this retracted state, when a current in a predetermined direction flows into the coil C and energizes (forward energization), the magnetic force generated in the coil C and the magnetic force of the permanent magnets Ma and Mb cancel each other, and as shown in Figure 3, the deflection force of the deflection element 5 causes the plunger P to slide in the tubular element 9, causing the lock rod to be in the protruding state.

Furthermore, in this protruding state, when a current flows into the coil C in a direction opposite to the predetermined direction and energizes (reverse 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, and as shown in FIG5 , the plunger P slides in the tubular member 9 due to the magnetic force generated in the coil C and the magnetic force of the permanent magnets Ma and Mb, and the lock rod is brought into a retracted state. When energization is terminated in the retracted state, the lock rod R is held in the retracted state 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 rod R is maintained by the magnetic force of the permanent magnets Ma and Mb, and the lock rod R is moved to the protruding state by applying a current in a predetermined direction to the coil C (forward energization), and the lock rod R is moved to the retracted state by applying a current in the opposite direction to the predetermined direction to the coil C (reverse energization).

The housing member 2 is composed of a cup-shaped member opening downward, and as shown in FIGS. 8 and 9, a connector portion 2a is formed to be connected to the tip of a wire extending from the side of the vehicle body. Then, as shown in FIGS. 3 and 5, the housing member 2 accommodates a self-holding solenoid S, a lock rod R, a connecting member 6, etc., and its accommodation space is closed by a cover member 3. In addition, a fastening member 4 is installed on one end side of the housing member 2 and the cover member 3, as shown in FIGS. 1 to 5, and the steering lock device 1 is installed at a predetermined position of the vehicle through the fastening member 4.

The connecting element 6 connects the plunger P and the lock rod R as described above, and as shown in FIGS. 7 and 11, is provided with a contact point 7 so that when the lock rod R moves between the protruding state and the retracted state, the contact point 7 can slide on the inner top surface T of the housing element 2. In addition, the inner top surface T of the housing element 2 is formed with a contact plate 8 as shown in FIG. 9. The contact plate 8 is made of a metal element (conductive element) insert-molded on the inner top surface T of the housing element 2, and as shown in FIGS. 12 and 13, it is composed of a first contact plate 8a, a second contact plate 8b, a third contact plate 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 wire h extending from the positive terminal and the negative terminal of the self-holding solenoid S through the terminals f and g, respectively, and can be connected to the control component 11 through the terminals a and b. The control component 11 is composed of a microcontroller etc. arranged on the side of the vehicle body, and is electrically connected to the self-holding solenoid S through the terminals a and b, the terminals f and g, and the wire h, so that the coil C of the self-holding solenoid S can be energized at any time.

When the contact point 7 moves with the connection element 6, a corresponding circuit is formed according to the contact position of the contact point 7 with the third contact plate 8c, the fourth contact plate 8d and the fifth contact plate 8e, and connected to the detection component 12 through the terminal parts c~e. The detection component 12 is the same as the control component 11, and is composed of a microcontroller and the like arranged on the side of the vehicle body, and is connected to the third contact plate 8c, the fourth contact plate 8d and the fifth contact plate 8e respectively.

Then, when the lock rod R is in a protruding state and the contact point 7 is in position H1 (see FIG. 12 ), a circuit is formed between the third contact plate 8c and the fifth contact plate 8e, and when the lock rod R is in a retracted state and the contact point 7 is in position H2 (see FIG. 12 ), a circuit is formed between the fourth contact plate 8d and the fifth contact plate 8e.

Therefore, since the detection component 12 is connected to the third contact plate 8c, the fourth contact plate 8d and the fifth contact plate 8e, respectively, the position of the lock rod R can be detected based on the circuit formed between the contact point 7 and the contact plate 8 (the third contact plate 8c, the fourth contact plate 8d and the fifth contact plate 8e), and even if there is no additional sensor such as a non-contact sensor, the protruding state or the retracted state of the lock rod R can be detected.

However, for example, when the lock rod R is not locked properly and a load is accidentally applied without entering the retracted state, even if the coil C is energized in the reverse direction to move the lock rod R from the protruding state to the retracted state, the lock rod R will be maintained in the protruding state. Here, in this embodiment, when the coil C is energized (reverse energized) to attract the plunger P, and the detection member 12 detects that the lock rod R is in the protruding state, the control member 11 controls the coil C to be energized repeatedly for a predetermined number of times.

Therefore, in this embodiment, by detecting the position of the lock rod R through the detection component 12, it can be known that the lock rod R has not changed from the protruding state to the retracted state due to poor locking, etc., so that the control component 11 repeatedly energizes the coil C a predetermined number of times (for example, once per second, multiple times) to promote the release of the poor locking and enable the lock rod R to change to the retracted state.

In this case, although it is more effective to repeatedly conduct reverse energization a predetermined number of times through the control member 11, forward energization (energization for moving the lock rod R to the protruding state) may be interspersed between multiple reverse energizations (energization for moving the lock rod R to the retracted state). By adding forward energization in addition to reverse energization, microvibration of the lock rod R can be expected, and the locking defect can be released more smoothly.

According to the first embodiment, since the connecting element 6 is provided to connect the plunger P and the lock rod R in the length direction and to move the lock rod R relative to the displacement direction of the plunger P, and the contact point 7 is installed on the connecting element 6, the connecting element 6 can surely follow the lock rod R and accurately detect the position of the lock rod R.

The following will describe the steering lock device of the second embodiment of the present invention. The steering lock device 13 described in the second embodiment is mounted on a vehicle such as a motorcycle, and is used to perform steering lock and release, and has a lock rod R mounted on a housing element 14, and as shown in Figures 14 to 16, the steering of the vehicle is locked by the forward protruding state of the lock rod R to perform steering lock, and as shown in Figures 17 and 18, the steering lock can be released by releasing the locking of the steering by the backward retraction state of the lock rod R.

Specifically, the steering lock device 13 of the present embodiment is as shown in FIGS. 14 to 26, and includes a lock rod R, a deflection element 17 for holding the lock rod R in a protruding state, a self-holding solenoid S having a plunger P that can be displaced by energization, a housing member 14 composed of a box-shaped molded product, a cover member 15 covering the opening of the housing member 14, a connecting member 18, a control member 11, and a detection member 12 (see FIGS. 19 and 25). In addition, the same components as those of the first embodiment are denoted by the same symbols, and their detailed descriptions are omitted.

As shown in FIGS. 16 and 18, the lock rod R is composed of a shaft-shaped member mounted on the housing member 14, and forms a protruding state (refer to FIGS. 14 to 16) or a retracted state (refer to FIGS. 17 and 18) forward or backward by the plunger P displaced by the energization of the self-holding solenoid S and the biasing force of the biasing member 17. Then, when the lock rod R is in the protruding state, as shown in FIG. 16, the tip end of the lock rod R is locked with the recess K formed in the steering wheel W of the vehicle to perform the steering lock, and when the lock rod R is in the retracted state, as shown in FIG. 18, the tip end of the lock rod R is separated from the recess K, and the locking of the recess K of the steering wheel W is released to release the steering lock.

As shown in FIGS. 22 and 23, the housing member 14 is composed of a cup-shaped member that opens upward, and a drain hole 14a is formed on its bottom surface, and the upper opening is covered by a cover member 15. As shown in FIGS. 16 and 17, the cover member 15 is made of a plate-shaped metal member, and an opening 15a is formed at a predetermined position thereof into which the lock rod R can be inserted and moved forward and backward. In addition, the cover member 15 is located at the upper side when the steering lock device 13 is assembled to the vehicle.

Next, the cover element 15 is installed with a self-holding solenoid S, a lock rod R, a connecting element 18, etc. as shown in Figures 19 to 21, and its accommodating space is closed by the housing element 14. In addition, a fastening element 16 is installed on the cover element 15 as shown in Figures 14 to 18, and the steering lock device 13 is installed at a predetermined position of the vehicle through the fastening element 16.

As shown in FIG19 , the deflection element 17 is made of a torsion coil spring, and the lock rod R is deflected in the protruding direction (upper direction in FIG16 ) by its deflection force so as to be kept in the protruding state. The deflection element 17 is not limited to a torsion coil spring, and may be other types of springs (coil springs, etc.) or elastic bodies (elastic rubber materials or resins, etc.).

The connecting element 18 of this embodiment is as shown in Figures 16, 18, 20, and 21, connecting the plunger P and the lock rod R of the self-retaining solenoid S in a basically vertical direction, and moving the lock rod R in a direction basically vertical to the displacement direction of the plunger P, and as shown in Figure 26, is constructed to have a first connecting groove 18a, a second connecting groove 18b, and an insertion hole 18c.

The first connection groove 18a can be connected to the plunger P by being inserted into a protrusion L1 formed at the tip end of the plunger P, and the second connection groove 18b can be connected to the lock bar R by being inserted into a protrusion L2 formed at the lock bar R. In addition, the protrusion L3 formed on the cover member 15 is inserted into the insertion hole 18c, so that the connection member 18 can be freely swung relative to the cover member 15. In addition, the insertion hole P1 is formed at the tip end of the plunger P, and the protrusion L1 is inserted into the insertion hole P1, so that the receiving member 10 can receive the base end P2 of the plunger P.

In addition, the connection element 18 of this embodiment is provided with a contact point 19 at a predetermined position as shown in FIG26. Therefore, the contact point 19 can move as the connection element 18 swings around the protrusion L3. At a position opposite to the contact point 19, as shown in FIGS. 24 and 25, a fixed terminal board 20 is provided, which has a first contact board 21a, a second contact board 21b, and a third contact board 21c.

The fixed terminal board 20 allows the contact point 19 to slide on one surface thereof, and the wires h3 to h5 extend from the first contact board 21a, the second contact board 21b and the third contact board 21c respectively, and these wires h3 to h5 are connected to the detection component 12. The detection component 12 is composed of a microcontroller etc. arranged on the side of the vehicle body, and when the lock rod R is in a protruding state and the contact point 19 is in position H1 (refer to FIG. 25), a circuit is connected between the first contact board 21a and the third contact board 21c, and when the lock rod R is in a retracted state and the contact point 19 is in position H2 (refer to FIG. 25), a circuit is connected between the second contact board 21b and the third contact board 21c.

Therefore, since the detection component 12 is connected to the first contact plate 21a, the second contact plate 21b and the third contact plate 21c respectively, the position of the lock rod R can be detected according to the circuit formed between the contact point 19 and the first contact plate 21a, the second contact plate 21b and the third contact plate 21c. Even if there is no additional sensor such as a non-contact sensor, the protruding state or retracted state of the lock rod R can be detected.

On the other hand, in this embodiment, as shown in Fig. 19, the self-holding solenoid S and the control member 11 can be connected via wires h1 and h2. The control member 11 is composed of a microcontroller etc. disposed on the vehicle body side, and is electrically connected to the self-holding solenoid S via wires h1 and h2, so that the coil C of the self-holding solenoid S can be energized at any time.

Next, when the coil C is not energized, the magnetic force of the permanent magnets Ma and Mb is set to attract the plunger P to be greater than the deflection force of the deflection element 17, so as shown in Figure 18, the state of attracting the plunger P is maintained, and the lock rod R is kept in the retracted state. In this retracted state, when a current in a predetermined direction flows into the coil C and energizes (forward energization), the magnetic force generated in the coil C and the magnetic force of the permanent magnets Ma and Mb cancel each other, and as shown in Figure 16, the plunger P slides in the tubular element 9 due to the deflection force of the deflection element 17, and the lock rod becomes a protruding state.

Furthermore, in this protruding state, when a current flows into the coil C in a direction opposite to the predetermined direction and energizes (reverse 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, and as shown in FIG18, the plunger P slides in the tubular member 9 due to the magnetic force generated in the coil C and the magnetic force of the permanent magnets Ma and Mb, and the lock rod is brought into a retracted state. When the energization is terminated in the retracted state, the lock rod R is held in the retracted state 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 rod R is maintained by the magnetic force of the permanent magnets Ma and Mb, and the lock rod R is moved to the protruding state by applying a current in a predetermined direction to the coil C (forward energization), and the lock rod R is moved to the retracted state by applying a current in the opposite direction to the predetermined direction to the coil C (reverse energization).

However, for example, when the lock rod R is not locked properly and a load is accidentally applied without entering the retracted state, even if the coil C is energized in the reverse direction to move the lock rod R from the protruding state to the retracted state, the lock rod R will be maintained in the protruding state. Here, in this embodiment, when the coil C is energized (reverse energized) to attract the plunger P, and the detection member 12 detects that the lock rod R is in the protruding state, the control member 11 controls the coil C to be energized repeatedly for a predetermined number of times.

Therefore, in this embodiment, by detecting the position of the lock rod R through the detection component 12, it can be known that the lock rod R has not changed from the protruding state to the retracted state due to poor locking, etc., so that the control component 11 repeatedly energizes the coil C a predetermined number of times (for example, once per second, multiple times) to promote the release of the poor locking and enable the lock rod R to change to the retracted state.

In this case, although it is more effective to repeatedly conduct reverse energization a predetermined number of times through the control member 11, forward energization (energization for moving the lock rod R to the protruding state) may be interspersed between multiple reverse energizations (energization for moving the lock rod R to the retracted state). By adding forward energization in addition to reverse energization, microvibration of the lock rod R can be expected, and the locking condition can be released more smoothly.

According to the second embodiment, since the connecting element 18 is provided to connect the plunger P and the lock rod R in a substantially vertical direction and to move the lock rod R in a substantially vertical direction relative to the displacement direction of the plunger P, and the contact point 19 is installed on the connecting element 18, the connecting element 18 can surely follow the lock rod R and accurately detect the position of the lock rod R.

According to the first and second embodiments, the locking rod R is held in a protruding state by a deflection element (5, 17); 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); the plunger P is connected to the locking rod R and the locking rod R is held in a retracted state by the magnetic force of the permanent magnets (Ma, Mb); and a detection component 12 for detecting the position of the lock rod R. When the coil C is energized to attract the plunger P, and when the detection component 12 detects that the lock rod R is in a protruding state, the coil C is repeatedly energized a predetermined number of times, so that the lock rod R can be moved by the solenoid S, and even if the lock rod R is poorly locked in the direction W, it is possible to avoid continuous energization of the coil C and prevent the solenoid S from overheating.

Furthermore, since the self-holding solenoid S has the tubular member 9 on which the permanent magnets (Ma, Mb) are mounted while accommodating the plunger P, the displacement of the plunger P can be performed smoothly and the permanent magnets (Ma, Mb) can be surely mounted at a predetermined position.

Furthermore, since the detection member 12 has the contact point (7, 19) mounted in linkage with the lock rod R and the contact plate formed with the circuit corresponding to the contact position of the contact point (7, 19), and has the circuit formed between the contact point (7, 19) and the contact plate, the position of the lock rod can be detected, so that the sensor for confirming the positioning of the lock rod R is not required, and the manufacturing cost can be reduced. In particular, according to the first embodiment, since the contact plate 8 is composed of a metal member insert-molded in the housing component 2, the contact plate 8 can be prevented from being misaligned with respect to the housing component 2, and the position of the lock rod R can be accurately detected. Furthermore, since the contact plate 8 of the first embodiment is formed on the inner top surface T of the cup-shaped housing member 2 which opens downward, it is possible to suppress infiltration of rainwater or the like, thereby avoiding electrical failures.

Although the above description is directed to this embodiment, the present invention is not limited thereto. For example, the connecting element for connecting the plunger P and the lock rod R may also have other types, such as connecting the plunger P and the lock rod R in a straight line along the length direction, or connecting the plunger P and the lock rod R in a substantially vertical direction, or connecting the plunger P and the lock rod R in a direction having a predetermined angle. In addition, in this embodiment, although it is applied to a motorcycle as an example, it may also be applied to other types of vehicles.

Industrial Applicability As long as it is a deflection element that keeps the lock rod in a protruding state; a plunger that can be displaced by the magnetic force generated by the energization of the coil and the magnetic force of the permanent magnet, and the plunger is connected to the lock rod and keeps the lock rod in a retracted state by the magnetic force of the permanent magnet; and a detection component for detecting the position of the lock rod, when the coil is energized to attract the plunger, and the detection component detects that the lock rod is in a protruding state, the coil is repeatedly energized for a predetermined number of times. The article may also have a different appearance or add other functions.

1: Turning lock device 2: Housing component 2a: Connector part 3: Cover component 3a: Drain hole 3b: Opening part 4: Fastening component 5: Deflection component (helical spring) 6: Connecting component 6a, 6b: Locking part 7: Contact point 8: Contact plate 9: Tubular component 10: Receiving component 11: Control component 12: Detection component 13: Turning lock device 14: Housing component 14a: Drain hole 15: Cover component 15a: Opening part 16: Fastening component 17: Deflection component (torsion coil spring) 18: Connecting component 18a: First connecting groove 18b: Second connection groove 18c: Insertion hole 19: Contact point 20: Fixed terminal plate 21a: First contact plate 21b: Second contact plate 21c: Third contact plate S: Self-holding solenoid C: Coil F: Frame Fa: Cover P: Plunger Pa: Groove Pb: Base end P1: Insertion hole P2: Base end R: Lock lever Ra: Groove T: Inner top surface W: Turning K: Concave part Ma, Mb: Permanent magnet h: Wiring La~Lc: Shaft part L1~L3: Protrusion part

FIG. 1 is a perspective view showing the appearance of a steering lock device (latch bar protruding state) according to the first embodiment of the present invention. FIG. 2 is a four-sided view showing the appearance of the same steering lock device. FIG. 3 is a cross-sectional view of line III-III in FIG. 2. FIG. 4 is a perspective view showing the appearance of the same steering lock device (latch bar retracted state). FIG. 5 is a cross-sectional view showing the retracted state of the lock bar in the same steering lock device. FIG. 6 is a perspective view showing the state in which the housing element is removed in the same steering lock device. FIG. 7 is an exploded perspective view showing the cover element, self-holding solenoid, lock bar, connecting element and contact point in the same steering lock device. FIG8 is a three-sided view showing the outer shell component of the same turning lock device. FIG9 is a perspective view showing the same outer shell component. FIG10 is a perspective view showing the self-holding solenoid in the same turning lock device. FIG11 is a perspective view showing the connecting element and the contact point in the same turning lock device. FIG12 is a plan view showing the contact plate in the same turning lock device. FIG13 is a perspective view showing the same contact plate. FIG14 is a perspective view showing the appearance of the turning lock device (lock rod protruding state) according to the second embodiment of the present invention. FIG15 is a four-sided view showing the appearance of the same turning lock device. FIG16 is a cross-sectional view of the XVI-XVI line in FIG15. FIG. 17 is a perspective view showing the appearance of the same steering lock device (lock rod retracted state). FIG. 18 is a cross-sectional view showing the lock rod retracted state in the same steering lock device. FIG. 19 is a four-view view showing the state of the housing element removed in the same steering lock device. FIG. 20 is a perspective view showing the state of the housing element removed in the same steering lock device and the lock rod protruding. FIG. 21 is a perspective view showing the state of the housing element removed in the same steering lock device and the lock rod retracted state. FIG. 22 is a perspective view showing the housing element in the same steering lock device. FIG. 23 is a four-view view showing the same housing element. FIG. 24 is a perspective view showing a fixed terminal plate in the same turning lock device. FIG. 25 is a plan view and a back view showing the same fixed terminal plate. FIG. 26 is a perspective view showing a connecting element in the same turning lock device.

1: Steering lock device

2: Shell components

2a: Connector part

3: Cover element

3a: Drainage hole

4: Fastening elements

R:Lock lever

Claims (6)

A steering lock device is provided with a lock rod mounted on a housing element, wherein the steering of a vehicle is locked by a forward protruding state of the lock rod, and the steering lock is released by a backward retracting state of the lock rod. The steering lock device comprises: a deflection element, which keeps the lock rod in a protruding state; a self-retaining solenoid, which has a plunger that can be displaced by a magnetic force generated by energizing a coil and a magnetic force of a permanent magnet, the plunger is connected to the lock rod and keeps the lock rod in a retracted state by the magnetic force of the permanent magnet; and a detection component, which is used to detect the position of the lock rod; When the coil is energized to attract the plunger, and the detection component detects that the lock rod is in the protruding state, the coil is repeatedly energized for a predetermined number of times. A steering lock device as described in claim 1, wherein the self-holding solenoid has a tubular element that accommodates the plunger and is equipped with the permanent magnet. A steering lock device as described in claim 1, wherein the detection component has a contact point that can be installed in a linkage manner with the lock rod, and a contact plate that forms a circuit corresponding to the contact position of the contact point, and the position of the lock rod can be detected based on the circuit formed between the contact point and the contact plate. A steering lock device as described in claim 3, wherein the contact plate is composed of a metal component insert-molded in the housing component. The steering lock device as described in claim 3 further includes a connecting element to connect the plunger and the locking rod along the length direction and enable the locking rod to move relative to the displacement direction of the plunger, and the contact point is mounted on the connecting element. The steering lock device as described in claim 3 further includes a connecting element to connect the plunger and the lock rod in a basically vertical direction and to enable the lock rod to move in a direction basically vertical to the displacement direction of the plunger, and the contact point is mounted on the connecting element.

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