JP6606360B2 - Electric steering lock device - Google Patents

Description

  The present invention relates to an electric steering lock device that locks the rotation of a steering wheel when a vehicle is parked.

  In a conventional electric steering lock device, for example, as in Patent Document 1, a magnet is provided on a lock stopper that supports a lock bar, and a Hall element provided on a substrate detects a change in magnetic field strength to detect the position of the lock bar. Is detected. In the conventional electric steering lock device, an urging spring is provided between the lock stopper and the lock bar. In the conventional electric steering lock device, by providing this urging spring, the lock bar is urged toward the steering shaft, and the lock bar is placed on the convex portion between each concave portion (engaged portion) of the steering shaft. Is prevented from getting on and is surely engaged with the recess.

JP 2008-49908 A

  However, in such a conventional configuration, after the lock operation is performed, if the magnet provided on the lock stopper is in a lock position that can be detected by the Hall element, the lock bar is locked even when the lock bar is riding on the convex portion of the steering shaft. It was determined that the bar was in the locked position.

  An object of the present invention is to make a correct determination according to the engagement state of the lock shaft unit without determining that the lock shaft unit is in the locked position in a state where the lock shaft unit cannot be correctly engaged with the engaged portion. It is to propose an electric steering lock device capable of

The present invention solves the above problems by the following means. In addition, in order to make an understanding easy, although the code | symbol corresponding to embodiment of this invention is attached | subjected and demonstrated, it is not limited to this.
According to the first aspect of the present invention, there is provided a lock position in which one end portion engages with the engaged portion (100b) of the steering shaft (100) and an unlock position in which the engagement between the one end portion and the engaged portion is released. A lock shaft (20) provided so as to be movable between and a slider (22) coupled to the lock shaft so as to be movable and having a lock shaft side locking hole (22a). and configured lock shaft unit (20) is held on the slider, the lock shaft unit and the detection unit you move together with (24), the motor rotation member which rotates by the driving force of the (61) (40) When the conversion mechanism (30a, 40b) for converting the rotary motion of the rotary member to linear motion and, together with a driver-side locking hole (30c), is moved straight by the converting mechanism A driver (30), said detector for detecting a movement position of the detected portion in accordance with movement of the lock shaft unit and (71, 72), before Symbol lock shaft side locking hole and the driver side locking hole disposed through to, and the connecting pin (31) for connecting the slider and the driver, is provided between the slider and the driver towards the lock shaft unit said to engaged portion (100b) A biasing member (50) for biasing, and either one of the lock shaft side locking hole or the driver side locking hole is a long hole formed long in the moving direction of the lock shaft unit. , the lock shaft unit in its direction of movement, which is relatively movably connected to said driver, said slider moving direction of the lock shaft And a holding hole for holding the detected portion that protrudes in a direction perpendicular to the moving direction of the lock shaft. (22b) is an electric steering lock device (1, 2).

According to a second aspect of the invention, the electric steering lock device according to claim 1, wherein the detected portion (24) is constituted by a magnet, prior Symbol detector (71, 72), the movement of the magnet The electric steering lock device (1, 2) is characterized in that it is constituted by a magnetic detection element capable of detecting a position by magnetism.

According to a third aspect of the present invention, in the electric steering lock device according to the second aspect of the present invention, a holding unit detection unit that detects a moving position of the holding unit (22b) when the lock shaft unit (20) is in the locked position. The electric steering lock device (2) is characterized by further comprising (80).

According to a fourth aspect of the present invention, in the electric steering lock device according to the third aspect , the holding portion detection unit (80) detects a moving position of the holding portion (22b) by a detection method different from that of the magnetic detection element. An electric steering lock device (2) characterized by comprising a position detecting element.

According to a fifth aspect of the present invention, in the electric steering lock device according to the fourth aspect of the present invention, the position detection element is operated by the movement of the holding portion (22b) to detect the moving position of the holding portion. The electric steering lock device (2) is characterized by comprising a switch.

According to a sixth aspect of the present invention, in the electric steering lock device according to the third or fourth aspect , the detection unit (71, 72) and the holding unit detection unit (80) are configured such that the detection unit is the detected unit. The range of the movement position of the lock shaft unit (20) capable of detecting (24) and the range of the movement position of the lock shaft unit capable of detecting the holding unit by the holding unit detection unit are: The electric steering lock device (2) is characterized by being provided differently.

  According to the present invention, the electric steering lock device does not determine that the lock shaft unit is in the locked position in a state where the lock shaft unit cannot be properly engaged with the engaged portion, and depends on the engagement state of the lock shaft unit. Correct judgment.

1 is an exploded perspective view of an electric steering lock device 1 according to a first embodiment. It is a perspective view which shows the principal part of the electric steering lock apparatus 1 from the direction different from FIG. 2 is a longitudinal sectional view showing a locked state of the electric steering lock device 1. FIG. It is the longitudinal cross-sectional view which extracted and showed only the principal part of the electric steering lock apparatus 1 from FIG. 2 is a longitudinal sectional view showing an unlocked state of the electric steering lock device 1. FIG. 2 is a longitudinal sectional view showing a lock standby state of the electric steering lock device 1. FIG. It is a disassembled perspective view of the electric steering lock apparatus 2 in 2nd Embodiment. It is a perspective view which shows the principal part of the electric steering lock apparatus 2 from a different direction from FIG. It is the figure which showed the state in which the lock shaft unit 20 is not in a perfect lock position, and is not in an unlock position. It is the figure which showed the state which has the lock shaft unit 20 in a perfect lock position.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

(First embodiment)
FIG. 1 is an exploded perspective view of the electric steering lock device 1 according to the first embodiment.
FIG. 2 is a perspective view showing the main part of the electric steering lock device 1 from a direction different from FIG.
FIG. 3 is a longitudinal sectional view showing a locked state of the electric steering lock device 1.
FIG. 4 is a longitudinal sectional view showing only the main part of the electric steering lock device 1 extracted from FIG.
In addition, each figure shown below including FIGS. 1-4 is a figure typically shown, and the magnitude | size and shape of each part are exaggerated suitably for easy understanding.
In the following description, specific numerical values, shapes, materials, and the like are shown and described, but these can be changed as appropriate.
Further, in the following description, unless otherwise specified, the description indicating the direction such as up and down refers to the direction in FIGS. 1 to 4.

  The electric steering lock device 1 according to the present invention locks and unlocks the rotation of the steering shaft 100 by electric drive. The electric steering lock device 1 includes a case 10 made of a nonmagnetic metal (for example, a magnesium alloy) and a lid (not shown) that covers a lower surface opening of the case 10 as an exterior.

  The case 10 is formed in a substantially rectangular box shape, and is arranged in the vehicle so that the steering shaft 100 is positioned on the upper side thereof. A column tube (not shown) is disposed on the upper side of the case 10, and the column tube is fixed to the case 10 by a bracket (not shown) attached to the case 10. Although not shown in detail, a steering shaft 100 is inserted into the column tube, and a steering wheel (not shown) is attached to one end of the steering shaft 100. The other end of the steering shaft 100 is connected to a steering gear box (not shown). When the driver rotates the steering wheel, the rotation is transmitted to the steering gear box via the steering shaft 100, the steering mechanism is driven, and the pair of left and right front wheels are steered to perform the required steering. The

The case 10 is formed with a lock member accommodating portion 10a and a substrate accommodating portion 10b. The lock member accommodating portion 10a and the substrate accommodating portion 10b communicate with each other by an elongated communication portion 10c extending in the vertical direction. .
A lock shaft unit 20, a driver 30, and a gear member 40 are accommodated in the lock member accommodating portion 10a.

  The lock shaft unit 20 includes a lock shaft 21, a slider 22, a lock pin 23, and a magnet 24. The lock shaft unit 20 is movable between a lock position where the lock shaft unit 20 is engaged with the steering shaft 100 and an unlock position where the engagement with the steering shaft 100 is released.

  The lock shaft 21 has a non-engagement end 21a, a lock pin hole 21b, and an engagement end 21c. The lock shaft 21 is a substantially rod-shaped member that locks the steering shaft 100 when the engagement end 21 c engages with the steering shaft 100. The lock shaft 21 is fitted in a circular lock shaft insertion hole 10d formed in the case 10 so as to be vertically movable. The non-engaging end 21a, which is the end of the lock shaft 21 opposite to the engaging end 21c, is fitted in a fitting hole 22c of the slider 22 described later. Further, the lock shaft 21 has a lock pin hole 21b penetrating in the direction perpendicular to the moving direction, that is, the axial direction of the lock shaft 21 (vertical direction in the figure). A lock pin 23 inserted into the lock pin hole 22 d of the lock shaft 21 is inserted into the lock pin hole 21 b, and the lock shaft 21 is integrated with the slider 22 by the lock pin 23.

  The slider 22 has a lock shaft side locking hole 22a, a holding portion 22b, a fitting hole 22c, a lock pin hole 22d, a magnet holding hole 22e, and a fitting end 22f. The fitting hole 22 c is opened upward along the moving direction of the lock shaft 21. As described above, the non-engaging end 21a of the lock shaft 21 is fitted into the fitting hole 22c. The lock pin hole 22 d is opened at a position corresponding to the lock pin hole 21 b of the lock shaft 21 along the direction orthogonal to the moving direction of the lock shaft 21. As described above, since the lock pin 23 is inserted into the lock pin hole 22 d, the slider 22 is integrated with the lock shaft 21 at the non-engaging end 21 a of the lock shaft 21.

Further, the slider 22 extends further below the bottom of the fitting hole 22c, and its lower end can be moved along the moving direction of the lock shaft 21 into the fitting hole 30b of the driver 30. It becomes the fitting end 22f which fits.
The lock shaft side locking hole 22a is opened as a long hole along the moving direction of the lock shaft 21 at a portion between the bottom of the fitting hole 22c and the fitting end 22f. A connecting pin 31 inserted into the driver side locking hole 30c of the driver 30 passes through the lock shaft side locking hole 22a.

  Further, the slider 22 is provided with a holding portion 22 b that protrudes in a direction orthogonal to the moving direction of the lock shaft 21. A magnet holding hole 22e having a rectangular cross section is formed in the holding portion 22b, and the magnet holding hole 22e holds the magnet 24. The holding portion 22b is guided on both side surfaces by the communication portion 10c, and also serves as a rotation stopper for the lock shaft unit 20.

  The magnet 24 is a detected portion that is formed in a square column shape, is held in a magnet holding hole 22 e formed in the holding portion 22 b of the slider 22, and moves integrally with the lock shaft unit 20.

The driver 30 has a male screw portion 30a, a fitting hole 30b, and a driver side locking hole 30c.
The male screw portion 30 a meshes with the female screw portion 40 b of the gear member 40. A conversion mechanism for converting the rotational motion of the gear member 40 into a straight motion is formed by the male screw portion 30a and the female screw portion 40b. By the action of the conversion mechanism, the driver 30 is caused to move straight in the forward and backward directions along the moving direction of the lock shaft 21 according to the rotation direction of the gear member 40.
As described above, the fitting end 22f of the slider 22 is fitted in the fitting hole 30b so as to be movable along the moving direction of the lock shaft 21.
The driver side locking hole 30c is opened through and corresponding to the lock shaft side locking hole 22a in a direction orthogonal to the moving direction of the lock shaft 21. The connecting pin 31 is inserted into the driver side locking hole 30c.

  The connecting pin 31 is disposed through the lock shaft side locking hole 22 a and the driver side locking hole 30 c and connects the lock shaft unit 20 and the driver 30. By the connection using the connection pin 31, the lock shaft unit 20 is connected to be movable relative to the driver 30 in the moving direction.

  A compression coil spring 50 is compressed between the bottom of the fitting hole 30b of the driver 30 and the fitting end 22f of the slider 22 as a biasing member that constantly biases the lock shaft unit 20 toward the steering shaft 100. It is disguised. Normally, the lock shaft unit 20 moves up and down together with the driver 30 by engaging the lower portion of the lock shaft side locking hole 22 a of the slider 22 with the connecting pin 31.

Below the lock member accommodating portion 10a, a gear member 40 that is formed in a substantially cylindrical shape and is rotated by a driving force of an electric motor 61 described later is rotatably accommodated. The lower outer periphery of the gear member 40 is rotatably held by a lid (not shown). A worm wheel 40a is formed on the outer periphery of the gear member 40, and a female screw portion 40b is formed on the inner periphery.
The lower part of the driver 30 is inserted into the gear member 40, and the male screw part 30 a formed on the outer periphery of the lower part of the driver 30 engages with the female screw part 40 b formed on the inner periphery of the gear member 40. ing.
A spring that constantly biases the driver 30 upward may be disposed between the lid (not shown) and the driver 30 so that the lid and the lower end of the gear member 40 do not contact each other.

  The electric motor 61 is housed in the lock member housing portion 10a of the case 10 in a horizontally placed state. A small-diameter worm gear 62 is attached to the output shaft 61a of the electric motor 61 so as to rotate integrally with the output shaft 61a. The worm gear 62 is engaged with a worm wheel 40 a formed on the outer periphery of the gear member 40. The worm gear 62 and the worm wheel 40 a constitute a part of a drive mechanism that converts the rotational force of the output shaft 61 a of the electric motor 61 into the advancing and retracting force of the lock shaft unit 20.

On the other hand, the substrate 70 is accommodated in the substrate accommodating portion 10 b formed in the case 10 so that the inner surface thereof is parallel to the operation direction of the lock shaft unit 20. The position corresponding to each of the unlock position and the lock position on the upper and lower surfaces of the inner surface of the substrate 70 is a magnetic unit such as a Hall element as a detection unit that detects the movement position of the magnet 24 according to the movement of the lock shaft unit 20 by magnetism. A first magnetic sensor 71 and a second magnetic sensor 72 formed by the detection element are fixed, respectively.
The first magnetic sensor 71 is disposed at a position where a predetermined amount or more of the magnetism obtained from the magnet 24 can be detected when the lock shaft unit 20 is in the unlock position. In the present embodiment, the first magnetic sensor 71 does not completely face the magnet 24 when the lock shaft unit 20 is in the unlock position, and is disposed slightly below the magnet 24 (see FIG. 5).
The second magnetic sensor 72 is disposed at a position where a predetermined amount or more of magnetism obtained from the magnet 24 can be detected when the lock shaft unit 20 is in the locked position. In the present embodiment, the second magnetic sensor 72 is provided at a position substantially opposite to the magnet 24 when the lock shaft unit 20 is in the locked position.

  Here, in this embodiment, the positional relationship between the magnet 24 and the first magnetic sensor 71 at the unlocked position and the positional relationship between the magnet 24 and the second magnetic sensor 72 at the locked position are both both. However, they are not completely facing each other. The reason for this is that each sensor determines the position based on the threshold value of the magnetic field lines, so that it is not always necessary that the two face each other. In addition, since the threshold value of the magnetic field lines is used as described above, there is an advantage that it is possible to appropriately determine the position without facing even when the facing is not possible due to the dimensional variation of each member or the margin of the operating stroke. is there. Furthermore, it is possible to prevent the magnet 24 from passing through the first magnetic sensor 71 or the second magnetic sensor 72 and making an erroneous determination by not making the two face to face. Note that the positional relationship between the magnet 24 and the first magnetic sensor 71 at the unlocked position and the positional relationship between the magnet 24 and the second magnetic sensor 72 at the locked position are configured so that they are completely opposed to each other. It is good.

  In the first magnetic sensor 71 and the second magnetic sensor 72, for example, a Hall element may be used as a magnetic detection element capable of detecting the moving position of the magnet 24 by magnetism, or a Hall IC or a linear Hall IC. An MR element or the like may be used.

Next, operation | movement of the electric steering lock apparatus 1 of this embodiment is demonstrated.
FIG. 5 is a longitudinal sectional view showing an unlocked state of the electric steering lock device 1.
In the unlocked state, the lock shaft unit 20 is lowered and the engaging end 21c of the lock shaft 21 is in the unlocked position completely separated from the steering shaft 100. If there is the lock shaft unit 20 at this unlock position, it can be detected by the first magnetic sensor 71 that it is the unlock position.
When performing the locking operation from this unlocked state, the electric motor 61 is driven, the gear member 40 rotates, and the driver 30 moves toward the steering shaft 100. As the driver 30 moves, the slider 22 also moves in a direction approaching the steering shaft 100. Further, the lock shaft 21 and the magnet 24 provided integrally with the slider 22 also move in a direction approaching the steering shaft 100 together with the slider 22.

FIG. 6 is a longitudinal sectional view showing the lock standby state of the electric steering lock device 1.
The state shown in FIG. 6 is a state in which the lock operation is performed from the state of FIG. 5, but the lock shaft 21 is in contact with the convex portion 100 a of the steering shaft 100 and waits for the lock.
When the convex portion 100a of the steering shaft 100 is on the protruding position of the lock shaft 21, the locking shaft 21 cannot be raised (protruded) any more due to the engagement end 21c colliding with the convex portion 100a of the steering shaft 100. The steering shaft 100 cannot be engaged with the recess (engaged portion) 100b. That is, the lock shaft unit 20 is in an intermediate position between the unlock position and the lock position. At this time, the fitting end 22f of the slider 22 is further inserted into the fitting hole 30b of the driver 30, and the compression coil spring 50 is further compressed. Thus, the driver 30 can approach the steering shaft 100 to a predetermined position in the locked state, and the electric motor 61 is not overloaded.
Here, the magnet 24 is integrally attached to the lock shaft unit 20. Therefore, the magnet 24 is also at an intermediate position between the unlock position and the lock position, like the lock shaft unit 20. Therefore, the magnet 24 is in a position that is not detected as the unlock position by the first magnetic sensor 71 and is not detected as the lock position by the second magnetic sensor 72.

  When the user performs a steering operation from the state of FIG. 6 and the recess 100 b of the steering shaft 100 moves onto the protruding position of the lock shaft 21, the lock shaft 21 is moved into the recess 100 b by the urging force of the compression coil spring 50. It protrudes and the engaging end 21c engages with the recessed part 100b, and it will be in the locked state of FIG. 3 shown previously. In this locked state, the magnet 24 attached integrally with the lock shaft unit 20 has moved to a position that can be detected as a lock position by the second magnetic sensor 72. Therefore, in the locked state of FIG. 3, the electric steering lock device 1 can detect by the second magnetic sensor 72 that the lock shaft unit 20 is in the locked position.

  As described above, according to the first embodiment, the electric steering lock device 1 serves as the first magnetic sensor 71 and the second magnetic sensor 72 as a detection unit that detects the position of the magnet 24 fixed to the slider 22. Equipped with. Further, the lock shaft unit 20 is configured such that the lock shaft 21 is integrally connected to one end portion of the slider 22 so as to be movable in the axial direction, and the other end portion of the slider 22 is axially connected to the driver 30. It is connected to be relatively movable. With such a configuration, in a state where the lock shaft 21 is not engaged with the recess 100b of the steering shaft 100, it is not determined that the lock shaft 21 is in the lock position, and the lock shaft 21 is not moved into the recess 100b of the steering shaft 100. When correctly engaged, it can be accurately determined that the lock shaft 21 is in the locked position.

  In addition, the electric steering lock device 1 is provided with a compression coil spring 50 that urges the slider 22 in the direction of the steering shaft 100 between the slider 22 and the driver 30, and the lock shaft side locking hole 22 a of the slider 22 is long. The slider 22 was connected to the driver 30 in a movable state via a connecting pin 31 inserted into the driver 30 as a hole. As a result, the electric steering lock device 1 causes the driver 30 to move to the lock shaft unit 20 with respect to the slider 22 even when the lock shaft 21 is in the protruding position as shown in FIG. It can be moved relatively in the moving direction.

  Further, in the electric steering lock device 1, the slider 22 is provided with a holding portion 22 b that holds the magnet 24, and the detection unit that detects the moving position of the magnet 24 is configured by a magnetic detection element. Thereby, the electric steering lock device 1 can detect the position of the lock shaft unit 20 in a non-contact manner, and can prevent wear failure of the detection unit.

(Second Embodiment)
FIG. 7 is an exploded perspective view of the electric steering lock device 2 according to the second embodiment.
FIG. 8 is a perspective view showing the main part of the electric steering lock device 2 from a direction different from that in FIG.
The electric steering lock device 2 according to the second embodiment is different from the electric steering lock device 1 according to the first embodiment only in that the holding unit detection unit 80 is provided. The configuration is the same as that of the electric steering lock device 1 of the embodiment. Therefore, the same reference numerals are given to the portions that perform the same functions as those in the first embodiment described above, and repeated descriptions are omitted as appropriate.

The holding | maintenance part detection part 80 detects the movement position of the holding | maintenance part 22b when the lock shaft unit 20 becomes a locked position. More specifically, the holding unit detection unit 80 includes a movable contact piece 81, and the movable switch 81 is moved by a predetermined amount, whereby a mechanical switch that is a push switch is turned on. It is comprised by. Note that the second magnetic sensor 72 (or the first magnetic sensor) is configured such that the holding unit detection unit 80 includes a position detection element that detects the movement position of the holding unit 22b by a detection method different from that of the magnetic detection element. 71) and the holding unit detector 80 are desirable in order to reduce the probability of simultaneous failure. In this embodiment, the holding unit detector 80 uses a mechanical switch.
The holding unit detector 80 is mounted on the substrate 70 so that the micro switch 82 is turned on only when the lock shaft unit 20 is completely moved to the locked position.

FIG. 9 is a view showing a state where the lock shaft unit 20 is not in the complete lock position and is not in the unlock position. Note that FIG. 9 and FIG. 10 described later are shown in a state seen through from the back side of the substrate 70.
The state shown in FIG. 9 is a state in which the lock shaft unit 20 is not completely moved to the correct lock position due to some trouble even when the lock shaft unit 20 is moved from the unlocked state to the locked position. is there. The holding unit detection unit 80 of the present embodiment is set so that the holding unit 22b does not press the movable contact piece 81 when the lock shaft unit 20 is not in the complete lock position. As shown in FIG. 9, when the lock shaft unit 20 is not in the complete locked position, the micro switch 82 is in an off (non-detection) state, so that the second magnetic sensor 72 temporarily controls the magnet 24. Even if it detects more than a fixed amount, the position of the lock shaft unit 20 can be determined more accurately by using the detection result of the holding unit detector 80.
For example, in the present embodiment, in the state of FIG. 9, a detection result that the lock shaft unit 20 is in the locked position is obtained by the second magnetic sensor 72. However, a control unit (not illustrated) determines that the lock shaft unit 20 is not in the complete lock position unless the holding unit detection unit 80 has detected that the lock shaft unit 20 is in the lock position.

FIG. 10 is a view showing a state where the lock shaft unit 20 is in a complete lock position.
When the lock shaft 21 is in the complete locked position as shown in FIG. 10, the holding portion 22b presses the movable contact piece 81, the micro switch 82 is turned on, and the holding portion detecting portion 80 is moved to the holding portion 22b. Is detected to have moved to the locked position. Also in the state of FIG. 10, the detection result that the lock shaft unit 20 is in the locked position is obtained by the second magnetic sensor 72 as in the case of the state of FIG. 9.
In the present embodiment, in the state of FIG. 10, both the detection result by the second magnetic sensor 72 and the detection result by the holding unit detection unit 80 are the result of “lock position”. The unit determines that the lock shaft unit 20 is in a completely locked position.

  Here, in the present embodiment, as described above, the range of the movement position of the lock shaft unit 20 that can be detected by the second magnetic sensor 72 when the magnet 24 is in the locked position, and the holding unit 22b by the holding unit detection unit 80. The range of the movement position of the lock shaft unit 20 that can be detected as being in the lock position is set differently. Thus, by making the detection range of the second magnetic sensor 72 (or the first magnetic sensor 71) different from the detection range of the holding unit detection unit 80, for example, the second magnetic sensor 72 due to the influence of magnetic force or the like. The movement position of the lock shaft unit 20 can be detected by the holding unit detector 80 even in a range where the setting of the detectable range of the (or first magnetic sensor 71) is restricted.

  As described above, in the electric steering lock device 2 of the second embodiment, the holding unit detection unit 80 that detects the moving position of the holding unit 22b is added to the configuration of the first embodiment, and the moving position of the holding unit 22b. From this, it is determined whether or not the lock shaft unit 20 is in the locked position. Thereby, the electric steering lock device 2 can more accurately detect that the lock shaft unit 20 is in the locked position.

  Moreover, the holding | maintenance part detection part 80 is comprised so that the movement position of the holding | maintenance part 22b may be detected with the detection system different from a magnetic detection element. Therefore, even if one of the second magnetic sensor 72 (or the first magnetic sensor 71) and the holding unit detection unit 80 may not be used, the electric steering lock device 2 does not use the other. It can be used, and the reliability of the apparatus can be greatly improved.

  Furthermore, the holding part detection part 80 is comprised by the mechanical switch which detects the movement position of the holding part 22b by operating by the movement of the holding part 22b. Therefore, the holding part detection part 80 of the electric steering lock device 2 can be configured simply.

  Furthermore, in the electric steering lock device 2, the range of the movement position of the lock shaft unit 20 that can be detected by the second magnetic sensor 72 when the magnet 24 is in the locked position, and the holding portion 22 b is locked by the holding portion detector 80. The range of the movement position of the lock shaft unit 20 that can be detected as being in is set to be different. Therefore, the electric steering lock device 2 can detect the movement position of the lock shaft unit 20 by the holding unit detector 80 even in a range where the setting of the detectable range of the second magnetic sensor 72 is restricted.

(Deformation)
The present invention is not limited to the embodiment described above, and various modifications and changes are possible, and these are also within the scope of the present invention.

  (1) In each embodiment, the lock shaft unit 20 has been described with an example in which two components of the lock shaft 21 and the slider 22 are connected and integrated. For example, the portions corresponding to the lock shaft 21 and the slider 22 may be composed of one component.

  (2) In each embodiment, the example which formed the lock shaft side latching hole 22a as a long hole demonstrated. For example, the electric steering lock device may be configured such that the driver side locking hole 30c is formed as a long hole.

  (3) In 2nd Embodiment, the holding | maintenance part detection part 80 gave and demonstrated the example comprised by the mechanical switch using the microswitch 82 which is a position type | mold detection element which is a press type switch. For example, the holding unit detection unit 80 is configured using other types of position detection elements such as an optical sensor that receives reflected light of the irradiated light and detects the position of the holding unit 22b. Also good.

  (4) In the second embodiment, the electric steering lock device 2 includes the range of the moving position of the lock shaft unit 20 that can be detected by the second magnetic sensor 72 when the magnet 24 is in the locked position, and the holding unit detector 80. An example in which the range of the movement position of the lock shaft unit 20 that can be detected when the holding portion 22b is in the lock position is set differently has been described. For example, the electric steering lock device 2 may detect that the second magnetic sensor 72 and the holding unit detector 80 are simultaneously in the locked position when the lock shaft unit 20 is in the locked position. It may be set.

  (5) In each embodiment, the conversion mechanism that converts the rotational motion of the gear member 40 into the straight motion has been described with reference to an example in which the male screw portion 30a and the female screw portion 40b are configured. For example, the conversion mechanism may be configured by a cam mechanism.

  (6) In each embodiment, the electric steering lock devices 1 and 2 use the concave portion 100b of the steering shaft 100 as an engaged portion, and lock the steering wheel when the lock shaft unit 20 engages with the concave portion 100b. The case where it is the example applied to a four-wheeled vehicle was demonstrated. For example, the electric steering lock device of the present invention may be applied to other types of vehicles such as two-wheeled vehicles. When the electric steering lock device of the present invention is applied to a two-wheeled vehicle, for example, the electric steering lock device is moved by being steered together with the steering device, and an engaged portion is formed at a part fixed to the main body frame or the main body frame. Alternatively, the electric steering lock device may be provided on the main body frame or a portion fixed to the main body frame, and the engaged portion may be formed on the steering device.

  Each embodiment and modification may be used in appropriate combination, but detailed description is omitted. Further, the present invention is not limited by the embodiments described above.

DESCRIPTION OF SYMBOLS 1, 2 Electric steering lock device 10 Case 10a Lock member accommodating part 10b Substrate accommodating part 10c Communication part 10d Lock shaft insertion hole 20 Lock shaft unit 21 Lock shaft 21a Non-engagement end 21b Lock pin hole 21c Engagement end 22 Slider 22a Lock Shaft side locking hole 22b Holding portion 22c Fitting hole 22d Lock pin hole 22e Magnet holding hole 22f Fitting end 23 Lock pin 24 Magnet 30 Driver 30a Male screw portion 30b Fitting hole 30c Driver side locking hole 31 Connecting pin 40 Gear Member 40a Worm wheel 40b Female thread part 50 Compression coil spring 61 Electric motor 61a Output shaft 62 Worm gear 70 Substrate 71 First magnetic sensor 72 Second magnetic sensor 80 Holding part detection part 81 Movable contact piece 82 Micro switch 100 Steering shaft 00a convex portion 100b recess (engaged portion)

Claims (6)

A lock shaft having one end portion to the engaged portion of the steering shaft is provided to be movable between the unlocked position where engaging is released with the engaged portion of the one end a locking position engaging A lock shaft unit configured to include a slider that is movably coupled integrally with the lock shaft and has a lock shaft side locking hole ;
And the slider is held in, it moves integrally with the lock shaft unit detected portion,
A rotating member that rotates by the driving force of the motor;
A conversion mechanism for converting the rotary motion of the rotary member into a linear motion;
A driver having a driver-side locking hole, and a linearly moved by the conversion mechanism;
A detection unit for detecting a movement position of the detected unit according to the movement of the lock shaft unit;
A connecting pin that is disposed through the lock shaft side locking hole and the driver side locking hole, and connects the slider and the driver;
An urging member provided between the slider and the driver and urging the lock shaft unit toward the engaged portion;
With
Either the lock shaft side locking hole or the driver side locking hole is a long hole formed long in the moving direction of the lock shaft unit,
The lock shaft unit is connected so as to be relatively movable with respect to the driver in the moving direction;
The slider is
A fitting hole that is opened upward along the moving direction of the lock shaft and into which the other end of the lock shaft is fitted,
A holding part that protrudes in a direction perpendicular to the moving direction of the lock shaft and holds the detected part;
An electric steering lock device. In the electric steering lock device according to claim 1,
The detected part is composed of a magnet,
The detection unit is composed of a magnetic detection element capable of detecting the moving position of the magnet by magnetism;
An electric steering lock device. In the electric steering lock device according to claim 2,
A holding unit detecting unit that detects a moving position of the holding unit when the lock shaft unit is in the locked position;
An electric steering lock device. In the electric steering lock device according to claim 3,
The holding unit detection unit is composed of a position detection element that detects a moving position of the holding unit by a detection method different from the magnetic detection element;
An electric steering lock device. In the electric steering lock device according to claim 4,
The position detection element is configured by a mechanical switch that detects the movement position of the holding unit by being operated by the movement of the holding unit;
An electric steering lock device. In the electric steering lock device according to claim 3 or 4,
The detection unit and the holding unit detection unit include a range of a movement position of the lock shaft unit in which the detection unit can detect the detected unit, and the holding unit detection unit detects the holding unit. The range of the movement position of the lock shaft unit that can be provided is different,
An electric steering lock device.

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