JP5165935B2 - Vehicle door lock device - Google Patents

Description

  The present invention relates to a door lock device attached to a vehicle such as an automobile, and more particularly to a door lock device that can be easily attached to a conventional vehicle.

  In a conventional vehicle door lock device, the rod connected to the door lock unit is illegally inserted by inserting a tool such as a screwdriver or wire through the gap between the window glass of the door and the weather strip or the mounting boundary on the outer periphery of the handle case. It was not possible to effectively prevent crimes that were moved to and unlocked the door.

  Therefore, for example, techniques for covering a connecting member such as a rod with a protective member so that the rod is not illegally operated by a tool or the like have been proposed (Patent Documents 1 and 2). In addition, techniques have been proposed in which the lock lever itself is mechanically locked so that the lock cannot be released by an unauthorized operation of a tool or the like (Patent Documents 3 to 5).

However, the most commonly used vehicle theft technique is to remove the key cylinder and create a duplicate key (February 1, 2002, Sankei Shimbun morning edition). Can not prevent any criminal acts at all.
Japanese Unexamined Patent Publication No. 7-97882 Japanese Unexamined Patent Publication No. 7-17248 JP-A-2-269281 JP-A-6-17568 JP 2000-345753 A

  The present invention has been made in view of such a conventional problem, and the object of the present invention is to provide an anti-theft performance that does not open the door even if an illegally manufactured copy key is used. Another object of the present invention is to provide an improved door lock device.

  Another object of the present invention is to provide a door lock device that can be easily attached to vehicles that have been marketed so far.

In order to achieve the above object, the present inventors have conducted intensive studies. As a result, in order to maintain the closed state of the door, that is, the striker and the latch, the latch in the direction in which the engagement is released can be maintained. The idea that rotation should be prevented has been obtained, and the present invention has been made. That is, in the vehicle door lock device according to the present invention, the striker attached to either the automobile body or the door engages with the rotatable latch attached to the other to close the door. A lock member that is attached to a vehicle and that abuts on an outer peripheral surface of the latch to prevent the latch from rotating, a locking position that prevents the latch from rotating, and a rotation of the latch. And a moving mechanism for moving to an unlocking position allowing movement.

  Here, the moving mechanism includes an urging member that applies a force to the lock member in a direction to move the lock member away from the latch, and a first solenoid that applies a force in a direction to bring the lock member closer to the latch. You may have. The moving mechanism further includes a slide member that is in sliding contact with an end surface of the lock member opposite to the end surface facing the latch, and the slide member is moved by the first solenoid with respect to the moving direction of the lock member. A protrusion is formed on the surface of the slide member that slides in contact with the end surface of the latch, and the protrusion of the slide member abuts on the end surface of the lock member by the movement of the slide member. The locking member may be moved to the locking position. At this time, from the viewpoint of stably positioning the lock member at the locking position, it is preferable that the tip of the protrusion of the slide member has a surface shape and is brought into surface contact with the end surface of the lock member.

  Furthermore, the moving mechanism is attached to a first solenoid and has a wire fixing plate formed with an engagement portion, a wire having one end connected to the wire fixing plate and the other end connected to the slide member, and the engagement A locking member that engages with the locking member and holds the wire fixing plate in a state of moving in the direction of the first solenoid, and is connected to the locking member to engage the locking member with the engaging portion. You may provide the 2nd solenoid to cancel | release. The first solenoid and the second solenoid are preferably driven / stopped by an on / off signal transmitted from the switch means.

  From the viewpoint of being able to be attached to a vehicle already on the market, it is preferable that it can be attached to and detached from the automobile body or door. When the striker is a U-shaped rod-like member, it is preferable to position and fix the lock member and the moving mechanism using the remaining two sides excluding one side of the striker with which the latch is engaged.

  In the vehicle door lock device of the present invention, the lock member approaches or abuts against the outer peripheral surface of the latch to prevent the rotation of the latch itself. Therefore, unless the lock member is moved from the locked position to the unlocked position, it is illegal. The door cannot be opened even if the produced duplicate key is used. Thereby, compared with the conventional antitheft device, the antitheft effect is remarkably improved. Moreover, it cannot visually recognize whether the door lock device for vehicles of this invention is attached from the outer side of a vehicle.

  Hereinafter, although the door lock device for vehicles concerning the present invention is explained based on a figure, the present invention is not limited to these embodiments at all.

FIG. 1 shows an explanatory diagram of a vehicle door locking mechanism. The vehicle door is provided with an inner door handle H ₁ , an outer door handle H ₂ , and a door lock unit 1, and the members are connected by rods (transmission members) R ₁ , R ₂ , R ₃ . Here, the moving direction of the rod when the door handles H ₁ and H ₂ are opened is indicated by arrows in the figure.

  In the present invention, a conventionally known door lock unit 1 can be used. FIG. 2 shows a partial configuration diagram as an example of the door lock unit 1. A window hole 13 is formed on the surface side of the door lock unit 1, a latch 11 is rotatably mounted on the upper portion of the window hole 13, and a ratchet 12 is rotatably mounted on the lower portion of the window hole 13. ing. On the outer peripheral surface of the latch 11, an engaging groove 111, a half latch engaging step 112, and a full latch engaging step 113 are formed to engage the striker S fixed to the vehicle body when the door is closed. The twelve claws 121 are configured to engage with either the half latch engaging step 112 or the full latch engaging step 113 to prevent the latch 11 from reversing.

  In FIG. 2, the latch 11 is urged clockwise by a spring (not shown), and the ratchet 12 is urged counterclockwise by a spring 14. The ratchet 12 is attached to the door lock unit 1 so that the end of the ratchet 12 opposite to the claw 121 across the shaft 120 can come into contact with the rod R connected to the door handle. The opening of the door handle causes the rod R to move downward in the figure to contact and push down the end of the ratchet 12, whereby the ratchet 12 rotates clockwise about the shaft 120.

  When the vehicle door is changed from the open state to the closed state, the door lock unit 1 configured as described above is engaged with the striker S having a “U” shape in plan view attached to the vehicle body. Specifically, as shown in FIGS. 3 and 4, the door lock unit 1 approaches the striker S on the vehicle body side, and the striker S enters from the window hole 13 of the door lock unit 1. Then, the striker S enters the engaging groove 111 of the latch 11, and the striker S rotates the latch 11 in the entry direction of the striker S. Then, the claw 121 of the ratchet 12 that is in contact with the outer peripheral surface of the latch 11 is first engaged with the half latch engaging step 112. This prevents the latch 11 from rotating in the direction in which the engagement with the striker S is released (clockwise direction in the figure).

  Further, when the striker S enters the door lock unit 1 and the latch 11 rotates in the direction in which the striker S enters, the ratchet 12 swings clockwise around the axis by the outer peripheral surface of the latch 11, and the half latch engagement. The engagement between the stepped portion 112 and the claw 121 of the ratchet 12 is released, and the claw 121 of the ratchet 12 is in sliding contact with the outer peripheral surface of the latch. The claw 121 of the ratchet 12 is then engaged with the full latch engaging step 113. This state is a state in which the vehicle door is completely closed, and the ratchet 12 prevents the latch 11 from rotating in the direction of releasing the engagement with the striker S, as described above. That is, the vehicle door is prevented from opening from the vehicle body, and the closed state of the vehicle door is reliably maintained.

  On the other hand, when the vehicle door is opened, the door handle of the vehicle door is opened. Then, as shown in FIG. 5, the rod R connected to the door handle descends downward in the figure and presses the end of the ratchet 12. The ratchet 12 rotates clockwise about the shaft 120. As a result, the engagement between the pawl 121 of the ratchet 12 and the full latch engaging step 113 is released, and the latch 11 is rotated in the direction of pushing the striker S outward (clockwise in the drawing) by a spring (not shown). Accordingly, the striker S engaged with the engagement groove 111 of the latch 11 is pushed out in the direction of the window hole 13, and the vehicle door is opened.

  In the door lock device having such a configuration, the vehicle door is generally locked by providing a mechanism that does not transmit the opening operation of the door handle to the ratchet 12 at the end or in the middle of the rod R connected to the door handle. Was done by. However, as described above, for example, a long object is inserted from a gap through which the door glass enters and exits, the rod R is moved to swing the ratchet 12, and the vehicle door is opened, or the vehicle key is unlocked by using a duplicate key. It was not possible to compete with the vehicle theft.

  On the other hand, the door lock device of the present invention prevents the vehicle door from opening by preventing the rotation of the latch 11 itself. Accordingly, even if the latch 11 is rotated through the rod R or the latch 11 is rotated using the duplicate key, the latch 11 cannot be rotated and the vehicle door cannot be opened.

  FIG. 6 is a perspective view showing an example of the door lock device of the present invention. FIG. 6 is an assembly view of components attached to the striker S of the door lock device according to the present invention. This component includes a lock member 2, a lock member holding portion 3 that holds the lock member 2 movably, a slide member 4, a guide member 5 that holds the slide member 4 movably, and a lock member holding portion 3. A frame 6 to which the guide member 5 is attached and a fixing plate 7 that sandwiches the striker S together with the frame 6 are provided.

  Hereinafter, each part will be described. First, in the lock member 2, a thin plate-like base portion 21, a front end wall portion 22 rising vertically from the front end of the base portion 21, and a rear end wall portion 23 vertically falling from the rear end of the base portion 21 are integrally formed. Thus, a buffer member 24 made of rubber or the like is fixed to the front end wall portion 22. In this specification, the side facing the latch 11 is referred to as a front side, and the opposite side is referred to as a rear side.

  The lock member holding part 3 includes a substantially rectangular parallelepiped base 31 and a holding plate 32 that is attached to the lower surface of the base 31 and holds the lock member 2 movably. The base body 31 has a substantially rectangular parallelepiped shape, and has a main body 311 having a recess 313 cut out in the vertical direction at a substantially central portion in the width direction of the rear side surface, and a striker extending forward from the front side lower side of the main body 311. A base 312 sandwiching S from below is formed integrally. Locking holes 30a, 30b, and 30c for fixing are formed in the left and right side surfaces and the upper and lower surfaces of the main body 311. On the other hand, the holding plate 32 has the same shape as that of the base 31 in a plan view, and is substantially the same as the width of the lock member 2 or slightly wider than the width of the lock member 2 at the substantially central portion in the width direction of the surface. A first groove 321 that is the same as the thickness of the first groove 321 or slightly deeper than the thickness of the lock member 2 is formed, and a second groove having the same width as the first groove 321 from the substantially center of the bottom surface of the first groove 321 toward the rear. 322 is formed in a staircase shape.

  A push spring 323 is attached to the second groove 322 of the holding plate 32, and the lock member 2 is fitted into the first groove 321 of the holding plate 32, and the holding plate 32 is fixed to the back surface of the base 31 with screws (not shown). The lock member 2 is slidably held by the lock member holding portion 3. At this time, one end of the push spring 323 comes into contact with the step portion of the second groove 322 and the first groove 321, and the other end comes into contact with the rear end wall portion 23 of the lock member 2. It is always urged backward by the H.323 (direction away from the latch).

  In FIG. 7, the assembly completion figure of the lock member holding | maintenance part 3 is shown. The lock member 2 is loosely movably fitted in the space formed by the first groove 321 of the holding plate 32 and the bottom surface of the base 31, and in the normal state, the lock member 2 is moved toward the base by the push spring 323. It is kept close. At this time, the rear end wall portion of the lock member 2 protrudes into the recess 313 of the base 31.

  Next, the slide member 4 includes a rectangular thin plate-like substrate 41, a protrusion 43 attached to an extending portion 42 extending outward from one side of the substrate 41, and one side on which the extending portion 42 is formed. On one side facing each other, a wire attachment piece 44 formed substantially perpendicular to the substrate 41 is provided. The substrate 41, the extension portion 42, and the wire attachment piece 44 are integrally formed, and the protrusion 43 is separately provided. After being manufactured, it is fixed to the extending portion 42. Of course, all of the substrate 41, the extended portion 42, the wire attachment piece 44, and the protrusion 43 may be integrally formed, or conversely, all the portions may be separately formed and then attached.

  An end of a wire W connected to a solenoid S1 (shown in FIG. 12) to be described later is attached to the wire attachment piece 44 of the slide member 4. Since the installation distance between the solenoid S1 (shown in FIG. 12) and the slide member 4 is usually long, the wire W is inserted into the protective tube 45 in order to protect the wire W and to facilitate the movement of the wire W. . Then, the wire W is exposed from the tube fixing member 46 attached to the end of the protective tube 45 and fixed to the wire attachment piece 44. A push spring 47 is interposed between the tube fixing member 46 and the wire attachment piece 44 to constantly bias the slide member 4 in a direction away from the tube fixing member 46.

  The guide member 5 that holds the slide member 4 movably is formed by bending a rectangular plate into a substantially “C” cross section and forming a strip-shaped opening 51 continuous in the axial direction. The thickness of the hollow portion of the guide member 5 is slightly larger than the thickness of the slide member 4, and the width of the hollow portion of the guide member 5 is slightly longer than the width of the slide member 4. Further, the width of the opening 51 is set wider than the width of the protrusion 43 of the slide member 4 and the wire attachment piece 44. As a result, the slide member 4 can be inserted into the hollow portion of the guide member 5, and at this time, the protrusion 43 and the wire attachment piece 44 of the slide member 4 are positioned at the opening 51 of the guide member 5. Therefore, the slide member 4 is movable in the hollow portion of the guide member 5.

  FIG. 8 is a perspective view showing a state in which the slide member 4 is inserted into the guide member 5. When the solenoid S1 (shown in FIG. 12) is not activated, the slide member 4 is held at a position away from the tube fixing member 46 by the push spring 47. When the solenoid S1 (shown in FIG. 12) is activated, the wire W is pulled in the direction of the solenoid S1 (shown in FIG. 12), and the slide member 4 moves against the urging force of the push spring 47. The hollow part of the guide member 5 is moved in the direction.

  As shown in FIG. 6, the frame 6 includes a top plate 61 and a pair of side plates 62 a and 62 b that hang down from both side ends of the top plate 61. In the frame 6 in this figure, the top plate 61 and the pair of side plates 62a and 62b are molded and joined separately, but the top plate 61 and the pair of side plates 62a and 62b may of course be integrally molded. . A first protrusion 63 extends outward from one side of the front end of the top plate 61, and the first protrusion 63 is engaged with the striker S at the front end thereof. An engaging portion 64 is formed. The top plate 61 and the pair of side plates 62a, 62b are formed with through holes 60a, 60b, 60c for attaching the base 31 and the guide member 5.

  First, the lock member holding portion 3 shown in FIG. 7 is attached to the frame 6 having such a configuration. Specifically, as shown in FIG. 9, holes 30 a and 30 b formed on both side surfaces of the base body 311 of the lock member holding portion 3 and having internal threads formed on the inner peripheral surface thereof are connected to a pair of side plates 62 a and 62 b of the frame 6. Overlaid on the holes 60a and 60b of 62b, the pair of side plates 62a and 62b are fixed by screws N and N from the outside. Next, the guide member 5 in which the slide member 4 is inserted as shown in FIG. 8 is attached. Specifically, as shown in FIG. 10, holes 50 a and 50 b formed on both side surfaces of the guide member 5 and having female threads on the inner peripheral surface are replaced with holes 60 b and a pair of side plates 62 a and 62 b of the frame 6. Overlaid on 60c, the pair of side plates 62a and 62b are fixed by screws N and N from the outside. As a result, the protrusion 43 of the slide member 4 enters the recess 313 of the base 31, and the protrusion 43 moves in the recess 313 as the slide member 4 moves. At the same time, the rear end surface of the lock member 2 always comes into contact with the slide member 4 by the urging force of the push spring 323 (shown in FIG. 6), so that the slide member 4 moves downward and the protrusion of the slide member 4 When 43 abuts on the rear end wall portion 23 of the lock member 2, the lock member 2 is pushed forward (in the latch direction) by the protrusion 43 (see FIG. 16). At this time, since the tip of the protrusion 43 has a surface shape, it comes into surface contact with the rear end wall portion 23 of the lock member 2. Thereby, the lock member 2 comes to be stably hold | maintained in a locking position.

  Next, attachment of the frame 6 to which the lock member holding portion 3 and the guide plate 5 are attached to the striker S of the vehicle body will be described. As shown in FIGS. 9 and 10, one short side of the “U” -shaped striker S in plan view is sandwiched between the base 312 of the base 31 and the top plate 61 of the frame 6, and the frame 6 The frame 6 is attached to the striker S so that the first engagement portion 64 covers the long side of the striker S from above. That is, the frame is positioned and fixed to the striker S using two sides other than one side of the striker S with which the latch is engaged.

  Next, the fixing plate 7 is mounted so as to overlap the frame from above the frame 6. As shown in FIGS. 6 and 11, the fixing plate 7 includes an upper plate 71 in which a bent portion 711 having an inverted “U” -shaped cross section is formed, and a front plate 72 suspended from a part of the front end of the upper plate 71. A second projecting portion 73 that extends outward from a part of the front end of the upper plate 71 and has a second engagement portion 74 having a cross-sectional "U" shape in the lower opening, and a rear end of the upper plate 71. And a rear plate 75 hanging from the bottom. The fixing plate 7 is attached so that the front plate 72 contacts the inner side of the short side of the striker S and the second engaging portion 74 covers the long side of the striker S from above. Here, the length from the front plate 72 to the rear plate 75 of the fixing plate 7 is slightly shorter than the sum of the length of the main body 311 of the base 31 and the diameter of the striker S, and the upper plate 71 has a bent portion 711. Therefore, the fixing plate 7 is attached to the frame 6 with the front plate 72 and the rear plate 75 being slightly expanded outwardly, and due to the elastic force generated at the bent portion 711 of the upper plate 71. The main body 311 of the base 31 and the striker S are strongly sandwiched between the front plate 72 and the rear plate 75 of the fixing plate 7. In other words, the striker S is sandwiched between the front wall of the main body 311 of the base 31 and the front plate 72 of the fixing plate 7, and the lock member 2 is fixed to the striker S. At the same time, the striker S is sandwiched from above and below together with the top plate 61 of the frame 6 between the base portion 312 of the base 31 and the back surface of the upper plate 71 of the fixing plate 7. Then, the fixing plate 7 is fixed to the main body 311 of the base body 31 with screws N and N through the through holes 70 a and 70 b and the through holes 60 d and 60 e formed in the fixing plate 7 and the frame 6.

  Next, the drive part that moves the slide plate 4 will be described. FIG. 12 shows a schematic diagram of the drive portion of the door lock device according to the present invention. The drive portion in FIG. 12 is for simultaneously locking and unlocking the locks of four vehicle doors. The base B, the wire fixing plate 8 swingably mounted on the base B, and the wire fixing plate The first solenoid S1 that swings 8, the locking member 9 that holds the state where the wire fixing plate 8 has moved toward the first solenoid S1, and the locking member 9 is swung to release the locking state. And a second solenoid S2. Two long holes 81a, 81b are formed in the wire fixing plate 8, and the two pins P1, P2 erected on the base B are engaged with the long holes 81a, 81b, respectively. A fixed plate 8 is movably attached to the base B. Further, on one side of the wire fixing plate 8, four wires W exposed from the end of the protective tube 45 are pressed and fixed by fixing pieces screwed. A plunger r1 protruding from the main body of the first solenoid S1 is pinned to the side facing the wire fixing side. Further, a rod-like member 83 is formed on the other side of the wire fixing plate 8 so as to protrude outward, and a tension spring 84 is interposed between the pin P3 erected on the base B and the rod-like member 83. It is disguised. The wire fixing plate 8 is always urged in the direction of pulling out the plunger r1 of the first solenoid S1 by the pulling spring 84, and the pins P1, P2 suspended from the base B are elongated holes 81a, 81b of the wire fixing plate 8. The wire fixing plate 8 is stopped in contact with the inner end of the first solenoid. Further, a projection (engagement portion) 85 is formed on the other side portion of the wire fixing plate 8, and the claw portion 91 of the locking member 9 is engaged with the projection 85 as described later. As described above, since the drive portion in this figure locks and unlocks four vehicle doors at the same time, four wires W are attached, but only one vehicle door is locked and unlocked. When unlocking, one wire W is attached to the wire fixing plate 8, and a driving portion is provided for each vehicle door.

  The locking member 9 has a substantially “L” shape, and a bent portion is supported by a shaft 90 attached to the base B so as to be swingable. A claw portion 91 having an inclined surface 911 that expands outward from the distal end portion toward the bent portion is formed at one end portion of the locking member 9. A through hole 92 is formed at the other end of the locking member 9, and the other end of the tension spring 93 is attached to the through hole 92 with one end attached to a pin P <b> 4 suspended from the base B. It is attached. Furthermore, a plunger r2 protruding from the main body of the second solenoid S2 is attached between the shaft 90 and the through hole 92 of the locking member 9. The locking member 9 is always urged counterclockwise about the shaft 90 by the pulling spring 93. When the locking device is in the unlocked state, the inclined surface 911 of the claw 91 is formed on the protrusion 85 of the wire fixing plate 8. It is in a contact state.

  In the drive portion having the above-described configuration, when the door lock device is in the unlocked state, the wire fixing plate 8 is held in a state where the plunger r1 is pulled out from the first solenoid S1 by the pulling spring 84, and the locking member 9 is held by the pulling spring 93. The inclined surface 911 of the claw portion 91 is held in a state where it contacts the protrusion 85 of the wire fixing plate 8.

  As shown in FIG. 13, when a locking signal is input to the door lock device, the first solenoid S1 is driven and the plunger r1 is drawn into the main body of the first solenoid S1. As a result, the wire fixing plate 8 is pulled toward the first solenoid S1 against the urging force of the tension spring 84, and as a result, the wire W is also pulled toward the first solenoid S1. A mechanism for moving the lock member 2 to the locking position in response to the pulling of the wire W will be described later. As the wire fixing plate 8 moves, the locking member 9 in which the claw 91 is in contact with the protrusion 85 of the wire fixing plate 8 rotates clockwise around the shaft 90 as the protrusion 85 moves downward. When the contact relationship between the inclined surface 911 of the claw portion 91 and the projection 85 is interrupted, the locking member 9 is rotated counterclockwise by the pulling spring 93, and the concave side surface of the locking member 9 contacts the projection 85. Touch.

  In this state, when the voltage applied to the first solenoid S <b> 1 is finished, the wire fixing plate 8 tends to be separated from the first solenoid S <b> 1 by the pull spring 84, but the protrusion 85 of the wire fixing plate 8 is Since it is locked by the vertical wall on the back side of the inclined surface, the wire fixing plate 8 holds the state of being drawn to the first solenoid S1, that is, the locked state of the locking device.

  When unlocking the locking device, a voltage is applied to the second solenoid S2. Then, as shown in FIG. 14, the plunger r <b> 2 is drawn into the main body of the second solenoid S <b> 2, the locking member 9 rotates clockwise, and the protrusion 85 of the wire fixing plate 8 and the vertical wall of the claw portion 91 are in contact with each other. The engagement relationship is canceled. The wire fixing plate 8 is moved by the tension spring 84 until the inner wall on the solenoid side of the long holes 81a and 81b comes into contact with the pins P1 and P2 while being regulated by the pins P1 and P2 and the long holes 81a and 81b. It moves in a direction away from the first solenoid S1. As will be described later, this causes the lock member 2 to move to the unlocked position.

  The movement of the locking member 2 between the locking position and the unlocking position will be described with reference to FIGS. FIG. 15 shows an unlocked state, and FIG. 16 shows a locked state. As shown in FIG. 15, when the locking device according to the present invention is in the unlocked state, the locking member 2 is biased in a direction away from the latch 11 by a push spring 323 (shown in FIG. 6), and the rear end of the locking member 2 The wall 23 is in contact with the substrate 41 of the slide member 4. In this state, if the engagement between the ratchet 12 and the latch 11 is released, the latch 11 can rotate about the shaft.

  On the other hand, when the vehicle door is closed and the locking device according to the present invention is locked, the first solenoid S1 is activated and the plunger r1 is drawn into the main body as shown in FIG. It moves in the direction of the first solenoid S1. The state is maintained by the engagement between the protrusion 85 of the wire fixing plate 8 and the claw 91 of the locking member 9. On the other hand, when the wire W moves in the direction of the first solenoid S1, the slide member 4 moves in the direction of the tube fixing member 46 against the push spring 47 as shown in FIG. The portion 43 contacts the rear end wall 23 of the lock member 2. Then, the lock member 2 is pushed forward, and the buffer member 24 of the lock member 2 contacts the outer peripheral surface of the latch 11. As a result, rotation about the axis of the latch 11 is prevented, and even if the engagement state between the ratchet 12 and the latch 11 is released by the rod R, the latch member 24 of the lock member 2 is latched as long as it is in contact with the latch 11. 11 cannot rotate and the vehicle door cannot be opened.

  Next, when unlocking the locking device of the present invention, as shown in FIG. 14, a voltage is applied to the second solenoid S <b> 2 so that the protrusion 85 of the wire fixing plate 8 and the vertical wall of the claw portion 91 Release the engagement relationship. Then, the wire fixing plate 8 and the wire W are moved away from the first solenoid S1 by the pulling spring 84, and the slide member 4 is moved away from the tube fixing member 46. As shown in FIG. 16, the rear end wall of the lock member 2 comes into contact with the substrate 41 from the protrusion 43 of the slide member 4, and the lock member 2 is separated from the latch 11 by a push spring 323 (shown in FIG. 6). . Accordingly, the latch 11 can be rotated, and when the engagement state between the ratchet 12 and the latch 11 is released by the rod R, the vehicle door can be opened.

  The on / off signal of the first solenoid S1 and the second solenoid S2 may be transmitted by a wireless switch (switch means) carried with the vehicle key. FIG. 17 shows a configuration diagram of a door lock device when a wireless switch is used. In the door lock device of this figure, a door lock portion 101 provided with a lock member 2 (shown in FIG. 11) is attached to a striker S provided substantially at the center in the vertical direction of a center pillar of an automobile body. And the drive part 102 incorporating the 1st solenoid S1 and 2nd solenoid S2 (illustrated in FIG. 12) which move the lock member 2 to a locking position and an unlocking position is attached under the seat seat of the automobile body. The door lock unit 101 and the drive unit 102 are connected by a wire W inserted in a protective tube. A receiving unit 103 for receiving a radio signal is attached on the dashboard of the automobile body, and the receiving unit 103 and the driving unit 102 are connected by a signal line 104. In addition, the attachment position of the receiving part 103 will not be specifically limited if it is a position visible from the exterior of a vehicle.

  In such a configuration, when the lock button B1 or the unlock button B2 of the switch SW is pressed, a lock signal or an unlock signal is transmitted from the switch SW. When these signals are received by the receiving unit, the first solenoid S1 or the second solenoid S2 built in the driving unit 102 is driven, and the lock member 2 of the door lock unit 101 is moved to the locked position or the unlocked position. Moving. The switch SW in this figure is provided with a locking button B1 and an unlocking button B2, but it goes without saying that locking and unlocking may be performed with one button.

  An infrared method is recommended as a method for transmitting a signal from the switch SW. In addition, a single solenoid may be used to always apply a voltage during locking to maintain the locked state of the locking device, but electrical energy is required to maintain the locked state. Therefore, it is preferable to use two solenoids as described above and activate the solenoids only when locking and unlocking. Moreover, you may enable it to lock / unlock a locking device separately for every vehicle door. A vehicle power source may be used as a power source for activating the solenoid or the like, or a unique power source may be prepared.

It is a schematic diagram which shows the locking mechanism of a vehicle door. It is a partial block diagram of a door lock unit. It is an outline figure when a striker is in a half latch state. It is a schematic diagram when the vehicle door is in a closed state. It is a schematic diagram when a vehicle door changes from a closed state to an open state. It is an assembly perspective view showing an example of the door lock device of the present invention. It is a perspective view of a lock member holding part. It is a perspective view of the state where the slide member was inserted in the guide member. It is explanatory drawing which attaches a lock member holding | maintenance part to a flame | frame. It is explanatory drawing which attaches a guide member to a flame | frame. It is explanatory drawing which attaches a door lock apparatus to a striker. It is a state figure of a drive part when a lock member is an unlocking position. It is a state figure of a drive part when a lock member is a locking position. It is a state figure when a locked state is cancelled | released. It is a state figure when a lock member is an unlocking position. It is a state figure when a lock member is a locking position. It is a schematic diagram which shows the structural example in the case of locking / unlocking with a radio signal.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door lock unit 2 Lock part 4 Slide member 8 Wire fixing plate 9 Locking member S Strike W Wire 11 Latch 12 Ratchet 43 Projection part 85 Protrusion part (engagement part)
S1 1st solenoid S2 2nd solenoid 323 Push spring (biasing member)

Claims (7)

A door lock device that is attached to a vehicle that engages a striker attached to either the automobile body or the door and a pivotable latch attached to the other to close the door,
A locking member that approaches the outer peripheral surface of the latch and prevents the latch from rotating, a locking position that prevents the latch from rotating, and an unlocking position that allows the latch to rotate. A vehicle door lock device comprising: a moving mechanism for moving; and being detachable from an automobile body or a door.   The moving mechanism includes an urging member that applies a force to the lock member in a direction to move the lock member away from the latch, and a first solenoid that applies a force in a direction to bring the lock member closer to the latch. The vehicle door lock device according to claim 1. The moving mechanism further includes a slide member that is in sliding contact with an end surface of the lock member opposite to the end surface facing the latch;
The slide member is moved in a direction substantially perpendicular to the movement direction of the lock member by a first solenoid, and a protrusion is formed on a surface of the slide member that is in sliding contact with the end surface of the latch.
The vehicle door lock device according to claim 2, wherein the protrusion of the slide member abuts on an end surface of the lock member by the movement of the slide member, and the lock member moves to the locking position.   The vehicle door lock device according to claim 3, wherein a tip of the projecting portion of the slide member has a surface shape and is in surface contact with an end surface of the lock member.   The moving mechanism is attached to the first solenoid and has a wire fixing plate formed with an engaging portion, one end connected to the wire fixing plate, the other end connected to the slide member, and the engaging portion The engaging member that engages and holds the wire fixing plate in a state of moving in the direction of the first solenoid, is connected to the engaging member, and the engagement between the engaging member and the engaging portion is released. The vehicle door lock device according to claim 3 or 4, further comprising a second solenoid.   6. The vehicle door lock device according to claim 5, further comprising switch means for transmitting on / off signals of the first solenoid and the second solenoid by wireless communication. The vehicle according to claim 6, wherein the striker is a U-shaped rod-shaped member, the latch is engaged with one side of the striker, and the lock member and the moving mechanism are positioned and fixed using the remaining two sides. Door lock device.

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