JP7015858B2 - Vehicle anti-theft structure - Google Patents

Description

The present invention relates to a vehicle anti-theft structure that prevents others from intentionally unlocking the parking mechanism for the purpose of vehicle theft.

The vehicle is provided with a parking mechanism. In such a parking mechanism, when the driver operates a shift lever to shift the shift lever to P (parking), an actuator composed of an electric motor or the like is driven. Then, there is a device that puts the lock mechanism in a parking lock state (see, for example, Patent Document 1). In such a parking mechanism, a position detection means such as a position detection sensor for detecting the position of a rotating member such as a detent plate rotated by an actuator is provided, and the position of the rotating member is provided by this position detecting means. Is detected to detect whether the parking mechanism is in the parking locked state or the parking unlocked state.

Here, a position detection means such as a position detection sensor is fitted and fixed in a mounting hole formed in a transmission case, for example, and the position of the detected member attached to the rotating member is fixed to the position detection means. For example, a contact type position sensor that magnetically detects the above is used.

By the way, there is a case where another person intentionally operates the parking mechanism for the purpose of stealing the vehicle to release the parking lock state. Specifically, the parking lock state by the parking mechanism is released by removing the position detecting means, inserting a rod-shaped tool such as a screwdriver from the mounting hole opened in the case, and rotating the detected member to the unlocked position. May be done.

In order to prevent the above-mentioned fraudulent acts, for example, Patent Document 2 proposes a configuration in which the fastening portion of the parking lock mechanism is covered with a strong cover so as to withstand intentional breakage.

On the other hand, the British Insurance Association stipulates that the time required to illegally release the parking lock state of the parking mechanism is longer than a predetermined time, and as a countermeasure for this (so-called Thatcham compliant), the parking mechanism A part of the bracket for attaching the actuator of the above is extended, and the position detecting means (position sensor) is covered with this extended part, and the position detecting means cannot be removed in a short time.

Japanese Unexamined Patent Publication No. 2017-185960 Japanese Unexamined Patent Publication No. 2009-072134

However, in the configuration proposed in Patent Document 2, it is necessary to newly design the cover, which is disadvantageous in terms of cost and weight. Further, in the configuration in which the position detecting means is covered with a part of the actuator mounting bracket of the parking lock mechanism, the theft itself cannot be reliably prevented even though the time until the theft can be increased.

The present invention has been made in view of the above problems, and an object thereof is to prevent theft of a vehicle easily and surely by using existing parts without adding new parts. To provide the structure.

In order to achieve the above object, the present invention has a locking mechanism that puts the parking locked state or the parking unlocked state by rotating the rotating member by the actuator (2), and the rotation direction and rotation position of the rotating member. A vehicle anti-theft structure provided with a parking mechanism (1) provided with a position detecting means (16) for detection, and a linear member in a mounting hole (3a) for fitting and fixing the position detecting means (16). Even when (T) is inserted, rotation of the linear member (T) to the parking unlock position of the rotating member is prevented within the movable range in the mounting hole (3a). It is characterized by being configured as follows.

According to the present invention, even if another person removes the position detecting means, pulls it out from the mounting hole, inserts a linear member such as a screwdriver through the opening mounting hole, and operates the rotating member for the purpose of stealing the vehicle. Since the rotation of the rotating member to the parking unlock position is prevented within the movable range in the mounting hole of the linear member, the parking lock state cannot be released. Therefore, it is possible to easily and surely prevent the theft of the vehicle by using the existing parts without adding new parts.

Here, the mounting hole (3a) is formed in the case (3) in which the rotating member of the parking mechanism (1) is housed, and the position detecting means (16) is attached to the rotating member. The position of the detected member (14) is detected, and an opening (14a) is formed in the detected member (14), and the opening (14a) is the opening (14a). When the linear member (T) is inserted into the mounting hole (3a), the linear member (T) can rotate to the parking unlock position within the movable range of the linear member (T). It may be formed in a position where it is blocked.

Further, in this case, the linear member (T) has an end portion (P1) on the parking unlock side and the outer surface (3c) side of the case (3) in the mounting hole (3a) and the mounting hole (P1). The end (P2) on the parking unlock side and the inner surface (3d) side of the case (3) in 3a) and the parking unlock side end in the opening (14a) of the detected member (14). It is preferable that the detected member (14) is located at a position closer to the parking lock position than the parking unlock position in a state of being in contact with any of the portions (P3).

According to the above configuration, since the opening is formed in the detected member, the weight of the detected member can be reduced, and foreign matter such as metal powder can be prevented from adhering to the detected member (contamination). The position of the detected member by the position detecting means, that is, whether the parking mechanism is in the parking locked state or the parking unlocked state can be detected with high accuracy. Further, since the opening is formed at a position where the rotation of the detected member to the parking unlock position is prevented within the movable range of the linear member inserted into the opening and the mounting hole, the parking mechanism can be used. The parking lock state is not unlocked illegally, and the theft of the vehicle is surely prevented.

According to the present invention, there is an effect that the theft of the vehicle can be easily and surely prevented by using the existing parts without adding new parts.

It is a partial front view which shows the structure of the main part of a parking mechanism. (A) is a partial perspective view showing a state in which the detected member is in the parking lock position, and (b) is a partial perspective view showing a state in which the detected member is in the parking unlock position. It is a partial perspective view which shows the state which the driver is inserted into the mission case through the sensor mounting hole, and the detected member is operated for the purpose of theft of a vehicle. It is a figure which shows the relationship between the position of a sensor mounting hole, the position of a driver inserted into this, and the position of a detected member.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a partial front view showing the configuration of a main part of the parking mechanism, FIG. 2 (a) is a partial perspective view showing a state in which the detected member is in the parking lock position, and FIG. A partial perspective view showing a state in which the vehicle is in the locked position, FIG. 3 is a partial perspective view showing a state in which a driver is inserted into a mission case through a sensor mounting hole to operate a detected member for the purpose of stealing a vehicle, and FIG. 4 is a partial perspective view. It is a figure which shows the relationship between the sensor mounting hole and the position of the driver inserted into this, and the detected member.

As shown in FIG. 1, the parking mechanism 1 provided in the vehicle includes an actuator 2 such as an electric motor (for example, a stepping motor) as a drive source, and the actuator 2 is outside the transmission case 3 of the vehicle. It is attached by a plurality of bolts (only one is shown in FIG. 1) 4. An output shaft (not shown) extending from the actuator 2 faces the inside of the transmission case 3, and a detent plate (not shown) is attached to the end thereof. Then, one end of the parking rod 6 supported by the holder 5 so as to be reciprocally reciprocating in the vehicle width direction (vertical direction on the paper surface in FIG. 1) is connected to the detent plate. The holder 5 is attached to the transmission case 3 by two bolts 7.

Further, in the transmission case 3, a parking pole 9 rotatably supported by a shaft 8 and a parking gear 11 attached to a rotatable power transmission shaft 10 arranged along the vehicle width direction are arranged. Has been done. Here, six engaging grooves 11a are formed on the outer periphery of the parking gear 11 at an equal angle pitch (60 ° pitch) in the circumferential direction. The parking pole 9 that selectively engages and disengages with the parking gear 11 and the engaging groove 11a of the parking gear 11 constitutes a locking mechanism of the parking mechanism 1.

At one end of the parking pole 9 (right end in FIG. 1), an engaging claw 9a that can be selectively engaged with the engaging groove 11a of the parking gear 11 is integrally formed, and the other end of the parking pole 9 is integrally formed. A truncated cone-shaped cam 12 provided at the tip of the parking rod 6 is engaged with (the left end of FIG. 1). The parking pole 9 is always in the direction of arrow R1 shown by the return spring 13 wound around the shaft 8 (the direction in which the engaging claw 9a disengages from the engaging groove 11a of the parking gear 11 (parking unlock direction)). Being urged.

By the way, a rectangular plate-shaped detected member 14 is attached to the detent plate (not shown), and the detected member 14 rotates integrally with the detent plate about the shaft 15. Then, by detecting the position of the detected member 14 by the position sensor 16 which is the position detecting means, it is detected whether the parking mechanism 1 is in the parking locked state or the parking unlocked state. As shown in FIGS. 2 and 3, a rectangular hole-shaped opening 14a is formed at the tip of the detected member 14.

Here, the position sensor 16 is composed of a non-contact type proximity sensor that magnetically detects the position (locked position and unlocked position) of the detected member 14, and is attached to the transmission case 3 as follows. Has been done. That is, the detection unit at the tip of the position sensor 16 is inserted from the circular hole-shaped sensor mounting hole 3a (see FIG. 3) formed in the transmission case 3, and as shown in FIG. 1, it protrudes integrally with the outer surface of the transmission case 3. The position sensor 16 is attached to the transmission case 3 by screwing a bolt 17 inserted into the mounting bracket 16A of the position sensor 16 into the two screw bosses 3A provided (only one is shown in FIG. 1). In the state where the position sensor 16 is attached to the transmission case 3 in this way, the tip portion of the position sensor 16 has a slight gap between the position sensor 16 and the detected member 14, as shown in FIGS. 1 and 2. They are facing each other while being kept.

Then, when the driver stops the vehicle and shifts the shift lever (not shown) to the P (parking) range (or presses the parking button (not shown)), the actuator 2 that receives the shift signal is driven. Then, the actuator 2 rotates the detent plate and the detected member 14 in the direction of arrow R3 in FIG. 2A. Then, the parking rod 6 moves toward the front side in the vertical direction of the paper in FIG. 1, and the cam 12 provided at the tip of the parking rod 6 acts on one end of the parking pole 9 to move the parking pole 9 to the return spring 13. It is rotated in the direction of arrow R2 in FIG. 1 against the urging force.

Then, in a state where the detected member 14 is in contact with the end surface of the rib 3b of the transmission case 3 as shown in FIG. 2A, the engaging claw 9a of the parking pole 9 is a parking gear 11 as shown in FIG. Since the parking gear 11 and the power transmission shaft 10 to which the parking gear 11 is attached are prevented from rotating by engaging with one of the engaging grooves 11a, the parking mechanism 1 is in the parking lock state and the movement of the vehicle is prevented. Will be done.

When the driver shifts the shift lever from the above state to a range other than the P range (for example, the D (drive) range) (or presses the parking release button (not shown)), the actuator 2 receives this shift signal. The detent plate and the detected member 14 rotate in the direction of arrow R4 in FIG. 2 (b). Then, the parking rod 6 moves to the back side in the vertical direction of the paper surface of FIG. 1, and the cam 12 provided at the tip of the parking rod 6 retreats from one end of the parking pole 9 (the left end of FIG. 1). The pole 9 is rotated in the direction of arrow R1 in FIG. 1 by the urging force of the return spring 13.

Then, in a state where the detected member 14 is in contact with the end surface of the holder 5 as shown in FIG. 2B, the engaging claw 9a of the parking pole 9 is disengaged from the engaging groove 11a of the parking gear 11 and the two are engaged. Since the setting is released, the parking mechanism 1 is in the parking unlocked state. In this parking unlocked state, the parking gear 11 and the power transmission shaft 10 to which the parking gear 11 is attached are allowed to rotate, so that the vehicle can run.

By the way, for the purpose of stealing a parked vehicle, it is conceivable that another person operates the parking mechanism 1 in the parking lock state to illegally release the parking lock state. Specifically, as shown in FIG. 3, the position sensor 16 is removed from the transmission case 3, and a tool (linear member) T such as a screwdriver is inserted into the transmission case 3 from the sensor mounting hole 3a opened in the transmission case 3. It is conceivable to access the detected member 14 ahead of the member and rotate it in the unlocking direction.

Therefore, in the present embodiment, even when a tool T such as a screwdriver is inserted into the sensor mounting hole 3a opened in the transmission case 3 as described above, the movable range of the tool T in the sensor mounting hole 3a. The parking mechanism 1 is configured so as to prevent the detected member 14 from rotating to the parking unlock position. Specifically, the opening 14a of the detected member 14 moves to the unlocked position of the detected member 14 within the movable range of the tool T such as a screwdriver inserted into the opening 14a and the sensor mounting hole 3a of the transmission case 3. It is formed at a position where the rotation of the is prevented. This will be described below with reference to FIG.

That is, in FIG. 4, the lock position A of the detected member 14 is the position indicated by the broken line, and the unlock position B is the position indicated by the chain line. In such a state, it is the tool T that can illegally insert a tool T such as a driver into the sensor mounting hole 3a of the transmission case 3 and rotate it to the maximum within the range of the sensor mounting hole 3a. At the time of contact at the illustrated point P1 and the point P2 on the peripheral edge of the opening of the sensor mounting hole 3a of the transmission case 3, the angle α shown is the maximum angle at which the tool T can be rotated in the sensor mounting hole 3a. be. In the state where the tool T is rotated by the maximum angle α in the sensor mounting hole 3a in this way, the tool T comes into contact with the illustrated point P3 on the peripheral edge of the opening 14a of the detected member 14. The detected member 14 cannot move to the unlock position B shown by the chain line in FIG.

In FIG. 4, the point P1 is the lock side (upper side in the figure) in the sensor mounting hole 3a and the end portion (wall portion) on the outer surface 3c side of the transmission case 3, and the point P2 is the unlock side in the sensor mounting hole 3a. (Lower side of the figure) and the end (wall part) on the inner surface 3d side of the transmission case 3. Further, the point P3 is an end portion (wall portion) on the unlock side (lower side in the figure) of the opening portion 14a of the detected member 14. Then, at a position where the linear tool T abuts on these three points P1, P2, and P3 at the same time, or at a position where these three points P1, P2, and P3 are lined up in a substantially straight line, the object is covered. The detection member 14 has not yet moved to the unlock position B, and is located on the lock side of the unlock position B.

Therefore, no matter how the tool T is inserted into the sensor mounting hole 3a for the purpose of stealing the parked vehicle and operated, the detected member 14 cannot be moved to the unlocked position, and the parking mechanism 1 Cannot release the parking lock state of the vehicle. Therefore, the theft of the vehicle is surely prevented. Since such an effect can be obtained by using the existing parts without adding new parts, the weight increase and the cost increase do not occur.

Further, in the present embodiment, since the opening 14a is formed in the detected member 14, the weight of the detected member 14 can be reduced and the adhesion of foreign matter (contamination) to the detected member 14 can be prevented. It is possible to detect the position of the detected member 14 by the position sensor 16 with high accuracy, that is, whether the parking mechanism 1 is in the parking locked state or the parking unlocked state. Then, the opening 14a of the detected member 14 is prevented from rotating to the unlocked position of the detected member 14 within the movable range of the tool T inserted into the opening 14a and the sensor mounting hole 3a of the transmission case 3. Since the parking mechanism 1 is formed at such a position, the parking lock state of the parking mechanism 1 is not illegally released, and the theft of the vehicle is surely prevented.

The present invention is not limited to the embodiments described above, and various modifications can be made within the scope of claims and the technical ideas described in the specification and drawings.

1 Parking mechanism 2 Actuator 3 Transmission case (case)
3a Transmission case sensor mounting hole 9 Parking pole 11 Parking gear 14 Detected member 14a Opening of detected member 16 Position sensor (position detection means)
T tool (straight member)

Claims (3)

A vehicle provided with a lock mechanism that puts a parking lock state or a parking unlock state by rotating a rotating member by an actuator, and a parking mechanism provided with a position detecting means for detecting the rotation direction and the rotation position of the rotating member. Anti-theft structure
A case in which the rotating member of the parking mechanism is housed, and a case.
A mounting hole formed in the case and to which the position detecting means is mounted is provided.
Even when the linear member is inserted into the mounting hole, the rotation of the rotating member to the parking unlock position is prevented within the movable range of the linear member in the mounting hole. The anti-theft structure of the vehicle, which is characterized by the fact that it has been done. The position detecting means detects the position of the detected member attached to the rotating member, and the detected member has an opening formed therein.
The opening is a position where the linear member is prevented from rotating to the parking unlock position in the movable range of the linear member when the linear member is inserted into the opening and the mounting hole. The vehicle anti-theft structure according to claim 1, wherein the vehicle is formed in. The linear member is an end portion of the mounting hole on the parking unlock side and the outer surface side of the case, an end portion of the mounting hole on the parking unlock side and the inner surface side of the case, and the detected member. The claim is characterized in that the detected member is located at a position closer to the parking lock position than the parking unlock position in a state of being in contact with any of the parking unlock side ends of the opening. The vehicle anti-theft structure according to item 2.

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