JP6550838B2 - Vehicle door lock device - Google Patents

Description

  The present invention relates to a vehicle door lock device attached to a vehicle door.

  Conventionally, as a door lock device for a vehicle, a lock for setting a latch mechanism on the vehicle door side to an unlocked state in which engagement with the striker on the vehicle body side can be released or to a locked state in which engagement with the striker can not be released. Those equipped with mechanisms are known. One such door lock device is disclosed, for example, in Patent Document 1 below. The door lock device (hereinafter, also referred to as “conventional device”) includes an active lever that can be rotated between an unlock position for setting the latch mechanism in the unlock state and a lock position for setting the latch mechanism. A double lock lever for preventing the rotation operation from the locked position to the unlock position, and two electric motors for driving each of the active lever and the double lock lever.

JP, 2009-257007, A

(Problems to be solved by the invention)

  By the way, in the door lock device like the above-mentioned conventional device, it is assumed that a vehicle theft tool (typically, a long tool like a driver) is inserted into the vehicle door from above the vehicle . In this case, there may be a problem that the vehicle door is unlocked when the vehicle theft tool reaches the active lever and forcibly activates the active lever. With respect to such problems, the above-described conventional device has a gap through which the vehicle theft tool can pass between the two electric motors, thereby preventing the vehicle theft tool from reaching the active lever. I can not do it.

  Accordingly, the present invention has been made in view of the above-described point, and one of the objects thereof is to prevent thefting of a vehicle theft tool from reaching an active lever in a door lock device for a vehicle. To provide an effective technology to improve the

(Means to solve the problem)
In order to achieve the above object, a door lock device for a vehicle according to the present invention is a device assembled in a region defined by a door outer panel on the outer side of a vehicle and a door inner panel on the inner side of a vehicle door. A mechanism and a locking mechanism. The latch mechanism is configured to be able to hold the vehicle door closed with respect to the vehicle body. The lock mechanism is accommodated in the housing, and the latch mechanism is set to an unlocked state in which the engagement with the striker provided in the vehicle body can be released or a locked state in which the engagement with the striker cannot be released. The lock mechanism further includes an open lever, a first electric motor, a second electric motor, an active lever, a double lock lever, and a protection structure. The open lever operates in accordance with a door opening operation of a door operation handle provided on the vehicle door. The first electric motor is disposed such that the end of the motor housing opposite to the motor shaft faces the upper edge of the housing. The second electric motor is disposed to be inclined with respect to the first electric motor, and is disposed so that the end of the motor housing opposite to the motor shaft faces the upper edge of the housing. The active lever is configured to rotate between an unlock position in which the door opening direction operation of the open lever can be transmitted to the latch mechanism and a lock position incapable of being transmitted to the latch mechanism when the first electric motor is driven. . The double lock lever is configured to rotate between a double lock position for holding the active lever in the locked position when the second electric motor is driven and a double lock release position deviated from the double lock position.

  The protection structure is a structure for protecting the active lever, and the first imaginary line extending from the end of the first electric motor through the axis of the motor shaft and the axis of the motor shaft from the end of the second electric motor The active lever is disposed in a partition area defined by a second virtual line extending through the housing, and the upper edge of the housing and the respective ends of the first electric motor and the second electric motor are opposed to each other It includes a structure in which the first electric motor and the second electric motor are arranged relative to each other so that a straight path that linearly connects the region and the active lever is closed. According to this structure, the vehicle theft tool that has entered the inside of the door interferes with the respective motor housings of the two electric motors, and therefore the entry to the active lever side is prevented. As a result, a simple structure using existing parts can prevent the vehicle theft tool from reaching the active lever and prevent the vehicle door from being unlocked, thus improving the antitheft performance. .

In the vehicle door lock device of the above configuration, the protection structure further includes that one of the first and second electric motors is directed to the other electric motor centering on the motor shaft. It includes a structure in which the first electric motor and the second electric motor are disposed relative to each other so as to interfere with the other electric motor when it is rotated. In this case, the two electric motors have a relationship of supporting each other with respect to the operation in the approaching direction. According to this structure, the strength of the blocking wall with respect to the vehicle theft tool can be increased corresponding to a plurality of intrusion directions of the vehicle theft tool.

The vehicle door lock device of the above configuration includes a meshing body attached to the housing and accommodating the latch mechanism. In this case, the protective structure further has the meshing body positioned on an extension of the axis of the motor shaft of the first electric motor, and the second electric motor is directed toward the first electric motor around the motor shaft. It includes a structure in which the first electric motor and the second electric motor are arranged relative to each other so that the first electric motor is pressed toward the meshing body by rotating. According to this structure, the strength of the blocking wall with respect to the vehicle theft tool can be further increased by receiving the load acting on each of the two electric motors by the meshing body.

The vehicle door lock device of the above configuration further engages with both the drive gear attached to the motor shaft of the first electric motor and the active lever, and rotates the active lever when the first electric motor is driven. It is preferable to have a wheel gear that rotates to In this case, it is preferable that the protection structure includes a structure in which at least one of the wheel gear and the double lock lever is disposed on a straight path in a sectioned area defined by the first virtual line and the second virtual line. . According to this structure, even if the vehicle theft tool that has entered the inside of the door breaks through the two electric motors, it interferes with at least one of the wheel gear and the double lock lever, so that the entry to the active lever side is prevented. . As a result, the protection of the active lever can be enhanced.

  As described above, according to the present invention, in the door lock device for a vehicle, it is possible to improve the antitheft property by preventing the tool for the vehicle theft from reaching the active lever.

FIG. 1 is a diagram showing a state in which a vehicle theft tool T is used for a vehicle door 10 to which a vehicle door lock device 100 of the present embodiment is assembled. FIG. 2 is a diagram showing an internal structure of the vehicle door lock device 100 in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawing, the front and rear of the vehicle are indicated by arrows X1 and X2, respectively, and the upper and lower sides of the vehicle are indicated by arrows Y1 and Y2, respectively. These directions can be applied to the vehicle door lock device in a state before being attached to the vehicle door, and to the vehicle door lock device in a state after being attached to the vehicle door.

  As shown in FIG. 1, a vehicle door lock device (hereinafter also simply referred to as “door lock device”) 100 according to the present embodiment includes a vehicle outer door outer panel 11 and a vehicle inner door constituting the vehicle door 10. It is attached to the area divided by the inner panel (not shown). FIG. 1 shows a rear door on the right side of the vehicle as a typical example of the vehicle door 10. The door lock device 100 includes a latch mechanism (a latch mechanism 110 described later) that can be engaged with the striker ST fixed to the vehicle body 20, and can hold the vehicle door 10 in a closed state. The door lock device 100 is a vehicle theft tool T (typically a long tool such as a driver) inserted into the door interior 13 through a gap between the door outer panel 11 of the vehicle door 10 and the movable window 12. It is characterized in that it is provided with a structure for coping with the intrusion of the vehicle theft tool T on the assumption that the vehicle is attacked.

  As shown in FIG. 2, the door lock device 100 includes a housing 101 to which the door lock component of the door lock device is attached, and a protector 102 attached to an upper edge of the housing 101. The door lock components attached to the housing 101 include a latch mechanism 110 and a lock mechanism 120. The protector 102 includes a first extending portion 102a extending in an elongated shape along the vehicle longitudinal direction X1, X2, and a second extending portion 102b extending in an elongated shape along the vehicle vertical direction Y1, Y2. And have. The protector 102 functions to protect the lock mechanism 120 housed in the housing 101 from water and theft tools that have entered from the outside of the vehicle door 10.

  The latch mechanism 110 is accommodated in the meshing body 103 attached to the housing 101. The meshing body 103 corresponds to the “meshing body” of the present invention. The latch mechanism 110 is for holding the vehicle door 10 in a closed state relative to the vehicle body 20, as is well known. The latch mechanism 110 is capable of engaging and disengaging with the striker ST, and capable of engaging and disengaging with the latch 111, and maintaining and releasing the engagement of the latch with respect to the striker ST. A possible pole (not shown) and a lift lever (not shown) integrated with the pole are provided. The latch 111 engages with the striker ST, and the engaged state is maintained, whereby the vehicle door 10 is held in the closed state (latched state). On the other hand, when the engagement between the latch 111 and the striker ST is released and the striker ST disengages from the latch 111, the vehicle door 10 shifts from a closed state to an open state (unlatched state). The latch mechanism 110 corresponds to the "latch mechanism" of the present invention.

  The lock mechanism 120 has a function of setting the latch mechanism 110 to an unlocked state in which the engagement with the striker ST can be released or a locked state in which the engagement with the striker ST cannot be released. The lock mechanism 120 includes elements such as an inside open lever 121, an outside open lever 122, an active lever 123, a double lock lever 124, and an open link (not shown). This lock mechanism 120 corresponds to the "lock mechanism" of the present invention.

  The inside open lever 121 is connected to an inside door handle (not shown) that is a door operation handle provided inside the vehicle door 10 via a connecting means such as a cable. Therefore, the inside open lever 121 is pivoted from the initial position to the working position by the door opening operation of the inside door handle. Similarly, the outside open lever 122 is connected to an outside door handle (not shown) that is a door operation handle provided outside the vehicle door 10 via a connecting means such as a cable. For this reason, the outside open lever 122 is pivoted from the initial position to the working position by the door opening operation of the outside door handle. Each of these open levers 121 and 122 is a lever that operates in accordance with the door opening operation of the door operation handle, and corresponds to the “open lever” of the present invention.

  The open link is configured to move from the initial position to the operative position upon rotational movement of the inside open lever 121 from the initial position to the operative position or upon rotational movement of the outside open lever 122 from the initial position to the operative position. It is done. When the open link is in the unlocked state in the initial position, the door opening direction operation of each open lever 121, 122 is transmitted to the lift lever of the latch mechanism 110 via the open link. On the other hand, when the open link is in the locked state at the initial position, the door opening direction movement of the open levers 121 and 122 can be transmitted to the open link but not transmitted to the lift lever of the latch mechanism 110 from the open link. .

  The active lever 123 is provided in the housing 101 so as to be rotatable between the unlocking position and the locking position, and the setting position of the open link can be changed in accordance with this rotation operation. In this case, when the open link is set to the unlocked state at the initial position at the unlocked position of the active lever 123, the door opening direction operation of the open levers 121 and 122 can be transmitted to the latch mechanism 110. On the other hand, when the open link is set to the initial position in the lock position of the active lever 123, the door opening direction operation of the open levers 121 and 122 cannot be transmitted to the latch mechanism 110. The active lever 123 corresponds to the "active lever" of the present invention.

  A first electric motor 130 that is an actuator for driving the active lever 123 is assigned to the active lever 123. The first electric motor 130 includes a metal motor housing 131 accommodating the stator and the rotor, and a motor shaft 132 fixed to the rotor and extending from the motor housing 131. The first electric motor 130 is disposed such that the end 131 a of the motor housing 131 opposite to the motor shaft 132 faces the upper edge of the housing 101. Here, the upper edge of the housing 101 refers to the wall portion of the outer edge portion of the housing 101 when the door lock device 100 is viewed from the direction shown in FIG. 2 (the direction perpendicular to the vehicle longitudinal direction and the vehicle vertical direction). Among them, it means a wall portion in which a vehicle upper component (Y1 direction component in FIG. 2) is included in a normal vector directed from the outer surface toward the outside of the housing 101. That is, the upper edge of the housing 101 is a portion that may be attacked by a vehicle theft tool or the like that enters the vehicle door 10 from the vehicle upper side toward the vehicle lower side. In the present embodiment, a protector 102 is attached to the upper edge of the housing 101. Therefore, the end 131 a of the first electric motor 130 is disposed to face the protector 102 attached to the upper edge of the housing 101. The first electric motor 130 corresponds to the “first electric motor” of the present invention.

  A worm gear 133 as a drive gear is fixed to the motor shaft 132 of the first electric motor 130. The worm gear 133 is configured to engage with a disk-shaped wheel gear 134 rotatably provided in the housing 101. The wheel gear 134 is configured to engage with both the worm gear 133 and the active lever 123. The wheel gear 134 corresponds to the “wheel gear” of the present invention. Accordingly, the driving force of the first electric motor 130 is transmitted to the active lever 123 via the worm gear 133 and the wheel gear 134. When the first electric motor 130 is driven, the wheel gear 134 rotates through the worm gear 133, and the active lever 123 rotates between the unlock position and the lock position as the wheel gear 134 rotates.

  The double lock lever 124 is provided on the housing 101 so as to be pivotable between a double lock position for holding the active lever 123 in the lock position and a double lock release position out of the double lock position. The double lock lever 124 corresponds to the "double lock lever" of the present invention.

  The double lock lever 124 is assigned a second electric motor 140 that is an actuator for driving the double lock lever 124. The second electric motor 140 includes a metal motor housing 141 that houses the stator and the rotor, and a motor shaft 142 that is fixed to the rotor and extends from the motor housing 141. The second electric motor 140 is inclined with respect to the first electric motor 130 with respect to the mounting surface of the housing 101, and the end 141 a of the motor housing 141 opposite to the motor shaft 142 faces the protector 102. In other words, the end portion 141 a is disposed so as to face the upper edge of the housing 101. Generally, the first electric motor 130 and the second electric motor 140 are arranged relative to each other so as to be “substantially V-shaped” or “inverted V-shaped” in a side view. The second electric motor 140 corresponds to the “second electric motor” of the present invention.

  A worm gear 143 as a drive gear is fixed to the motor shaft 142 of the second electric motor 140. The worm gear 143 is configured to engage with the double lock lever 124. Therefore, the double lock lever 124 is pivoted between the double lock position and the double lock release position via the worm gear 143 when the second electric motor 140 is driven.

  The door lock device 100 configured as described above includes a protection structure 150 for protecting the active lever 123. Specifically, the protection structure 150 functions to prevent the vehicle theft tool T inserted into the door interior 13 in FIG. 1 from breaking through the protector 102 and reaching the active lever 123. This protection structure 150 corresponds to the "protection structure" of the present invention.

  For this purpose, the protection structure 150 comprises an active lever in a partition area A which is divided by a first imaginary line L1 for the first electric motor 130 and a second imaginary line L2 for the second electric motor 140. 123, and a linear path C that linearly connects the active lever 123 and the facing region B where the protector 102 (the upper edge of the housing 101) and the end portions 131a and 141a of the motor housings 131 and 141 of each motor face each other. Includes a structure in which the first electric motor 130 and the second electric motor 140 are relatively disposed (hereinafter, also referred to as “first structure”). In this case, the first imaginary line L <b> 1 is a line that extends linearly from the end 131 a of the motor housing 131 of the first electric motor 130 through the axis of the motor shaft 132. The second virtual line L2 is a line extending linearly from the end 141a of the motor housing 141 of the second electric motor 140 through the axis of the motor shaft 142. In short, in the line of sight from the facing area B side, the motor housings 131 and 141 are in the way and the active lever 123 can not be viewed.

  In this first structure, the metal motor housings 131 and 141 cover the active lever 123 from the vehicle theft tool T, thereby preventing the vehicle theft tool T from entering the active lever 123 side. It becomes a blocking wall. The housing side surface 131b of the motor housing 131 or the housing side surface 141b of the motor housing 141 is a guide wall for guiding the vehicle theft tool T that has entered in the first direction D1 in a direction away from the direction toward the active lever 123. Become. Therefore, according to this first structure, even if the vehicle theft tool T that has entered the inside of the door advances in the first direction D1 and breaks through the protector 102, for example, the motor housings 131, 140 of the electric motors 130, 140 141 to interfere with the active lever 123 side. Further, the vehicle theft tool T acting on the housing side surface 131b of the motor housing 131 or the housing side surface 141b of the motor housing 141 is guided along the first virtual line L1 or the second virtual line L2 outside the partition area A. , Cannot enter the partitioned area A. As a result, since the vehicle theft tool T can be prevented from reaching the active lever 123 and the vehicle door 10 can be prevented from being unlocked by a simple structure using existing parts, Improve.

  When the motor housings 131 and 141 have desired strength, a resin material can be used as the material of the protector 102 instead of the metal material. Thereby, the weight reduction and cost reduction of the door lock apparatus 100 are achieved. Of course, the metal protector 102 can also be used in order to increase the strength of the protector 102 itself. Moreover, it is preferable that the motor housing 131 and the motor housing 141 are brought close to each other so that a gap formed between the motor housing 131 and the motor housing 141 is minimized. As a result, the area occupied by the motor housings 131 and 141 can be reduced, and as a result, the door lock device 100 can be miniaturized.

  In addition to the first structure described above, the protective structure 150 is a divided area A that is divided by the first virtual line L1 for the first electric motor 130 and the second virtual line L2 for the second electric motor 140. It includes a structure (hereinafter also referred to as a "second structure") in which both the wheel gear 134 and the double lock lever 124 are disposed on the inner straight path C. In this second structure, the wheel gear 134 and the double lock lever 124 cover the active lever 123 from the vehicle theft tool T so as to steal the vehicle toward the active lever 123 as with the motor housings 131 and 141. It becomes a blocking wall for blocking the penetration of the tool T. Therefore, according to this second structure, even if the vehicle theft tool T that has entered the inside of the door advances in the first direction D1 and breaks through the protector 102 and the electric motors 130 and 140, for example, the wheel gear 134 and Since it interferes with both of the double lock levers 124, entry into the active lever 123 side is prevented. In particular, the protection of the active lever 123 can be enhanced by combining the first structure and the second structure.

  Note that, as a modification of the second structure, either of the wheel gear 134 and the double lock lever 124 on the straight path C in the divided area A divided by the first virtual line L1 and the second virtual line L2 It is also possible to adopt a structure in which one or the other is disposed.

  In the protective structure 150, in addition to the first and second structures described above, any one of the first electric motor 130 and the second electric motor 140 is centered on the motor shaft, and the other is the other. Structure in which the first electric motor 130 and the second electric motor 140 are arranged relative to each other so as to interfere with the other electric motor when turned toward the electric motor (hereinafter, “third structure” (Also referred to as In this third structure, the motor housing 131 of the first electric motor 130 receives a load in the second direction D2 from the vehicle theft tool T and rotates about the motor shaft 132 counterclockwise in FIG. In this case, the first electric motor 130 is received by the second electric motor 140. Similarly, when the motor housing 141 of the second electric motor 140 receives, for example, a load in the third direction D3 from the vehicle theft tool T and rotates around the motor shaft 142 in the clockwise direction in FIG. Second electric motor 140 is received by first electric motor 130. In short, the first electric motor 130 and the second electric motor 140 have a relationship of supporting each other for the movement in the approaching direction. Therefore, according to the third structure, it is possible to increase the strength of the blocking wall with respect to the vehicle theft tool T corresponding to the plurality of intruding directions of the vehicle theft tool T.

  In addition to the first structure, the second structure, and the third structure described above, the protective structure 150 includes the meshing body 103 positioned on the extension of the axis of the motor shaft 132 of the first electric motor 130, and the first structure. The first electric motor 140 is rotated toward the meshing body 103 by rotating the second electric motor 140 about the motor shaft 142 toward the first electric motor 130. It includes a structure (hereinafter also referred to as “fourth structure”) in which the motor 130 and the second electric motor 140 are relatively disposed. In the fourth structure, when a load in the direction along the axis of the motor shaft 132 acts on the first electric motor 130 from the vehicle theft tool T, the load is received by the meshing body 103. Further, the second electric motor 140 receives a load in the third direction D3 from the vehicle theft tool T, for example, rotates around the motor shaft 142 in the clockwise direction in FIG. 2 and interferes with the first electric motor 130. In this case, the load acting on the first electric motor 130 is received by the meshing body 103. Therefore, according to the fourth structure, the load acting on each of the first electric motor 130 and the second electric motor 140 is received by the meshing body 103, whereby the strength of the blocking wall against the vehicle theft tool T is increased. It can be further enhanced.

  The invention is not limited to the exemplary embodiments described above, but various applications and modifications are conceivable. For example, each of the following embodiments to which the above embodiment is applied can be implemented.

  Although the above embodiment describes the case where the protective structure 150 includes four structures of the first to fourth structures, the present invention adopts various embodiments in which the protective structure 150 includes at least the first structure. be able to.

  In the above embodiment, the case where the driving force of the first electric motor 130 is transmitted to the active lever 123 via the worm gear 133 and the wheel gear 134 has been described. However, in the present invention, an element corresponding to the wheel gear 134 is added. Alternatively, the drive force of the first electric motor 130 may be directly transmitted from the worm gear 133 to the active lever 123. In the above embodiment, the configuration of the door lock device in which the protector 102 is attached to the upper edge of the housing 101 is shown, but the present invention is also applied to a door lock device in which the protector 102 is not attached. Can.

  In the present invention, the essential structure of the door lock device 100 described above can be applied to each vehicle door of a vehicle. For example, the essential structure of the door lock device 100 according to the present invention is applied to left and right doors for the front seat of the vehicle, right and left doors for the rear seat of the vehicle, and further, a door (back door) at the rear of the vehicle. be able to.

  DESCRIPTION OF SYMBOLS 10 ... Vehicle door, 11 ... Door outer panel, 12 ... Movable window, 13 ... Door inside, 20 ... Vehicle body, 100 ... (For vehicles) Door lock apparatus, 101 ... Housing, 102 ... Protector, 110 ... Latch mechanism, 120 ... Lock Mechanism, 121: inside open lever, 122: outside open lever, 123: active lever, 124: double lock lever, 130: first electric motor, 131, 142: motor housing, 131a, 141a: housing end, 132 , 142: motor shaft, 133, 143: worm gear, 134: wheel gear, 140: second electric motor, 150: protection structure, A: partition area, B: opposing area, C: linear path

Claims (2)

A vehicle door lock device assembled in a region defined by a vehicle outer door outer panel and a vehicle inner door inner panel constituting a vehicle door,
A latch mechanism configured to be able to hold the vehicle door in a closed state with respect to the vehicle body;
A lock mechanism housed in a housing and configured to set the latch mechanism to an unlocked state in which engagement with the striker provided on the vehicle body can be released or into a locked state in which engagement with the striker can not be released;
An interlocking body attached to the housing for receiving the latch mechanism;
Equipped with
The locking mechanism is
An open lever that operates in accordance with a door opening operation of a door operation handle provided on the vehicle door;
A first electric motor arranged such that an end of the motor housing opposite to the motor shaft faces the upper edge of the housing;
A second electric motor which is arranged to be inclined with respect to the first electric motor, and is arranged so that an end portion of the motor housing opposite to the motor shaft faces the upper edge of the housing;
The first electric motor is configured to rotate between an unlock position capable of transmitting the movement in the door opening direction of the open lever to the latch mechanism and a lock position not transmittable to the latch mechanism when the first electric motor is driven. An active lever,
A double lock configured to rotate between a double lock position for holding the active lever at the lock position and a double lock release position deviated from the double lock position when the second electric motor is driven. Lever,
A protective structure for protecting the active lever;
Equipped with
The protective structure is
A first imaginary line extending from the end of the first electric motor through the axis of the motor shaft and a second imaginary line extending from the end of the second electric motor through the axis of the motor shaft; The active lever is disposed in a region defined by the region, and the active lever is disposed in a region where the upper edge of the housing and the end portions of the first electric motor and the second electric motor are opposed to each other. Block the straight line connecting the
When one of the first electric motor and the second electric motor rotates about the motor shaft toward the other electric motor, it interferes with the other electric motor;
The meshing body is positioned on an extension of the axis of the motor shaft of the first electric motor, and the second electric motor rotates toward the first electric motor about the motor shaft. to so that is pressed toward the first electric motor is the meshing body by said first electric motor and said second electric motor comprises a relative arrangement structure, the door lock device for a vehicle. The vehicle door lock device according to claim 1, wherein
A wheel gear engaged with both the drive gear attached to the motor shaft of the first electric motor and the active lever, and rotating so as to turn the active lever when the first electric motor is driven With
The protective structure includes a structure in which at least one of the wheel gear and the double lock lever is disposed on the linear path in a region defined by the first imaginary line and the second imaginary line. Vehicle door lock device.

Images