JP5569487B2 - Vehicle door lock device - Google Patents

Description

  The present invention relates to a vehicle door lock device provided on, for example, a side door of a vehicle such as an automobile.

  A door lock device for keeping a door in a closed state is provided on a door of a vehicle such as a passenger car. An example of the door lock device includes a base fixed to the door body, a latch member provided on the base, a latch pole member, and the like. The latch member can rotate between a meshing position that engages with a striker provided on the vehicle body side and a non-meshing position that releases the striker. The latch pole member rotates between a lock position for holding the latch member in the meshing position and a lock release position for releasing the latch member.

  The latch pole member can be moved to the unlocked position by a pole lever interlocked with an operation portion operated by an operation member such as a cable or a rod. When the pole lever is operated in the unlocking direction, the latch pole member moves in the unlocking direction, so that the latch member can be moved to the non-engagement position and the door can be opened.

  For example, the following Patent Documents 1 and 2 disclose a door structure having a protection function for preventing a door lock device from being illegally destroyed and opening a door. Patent Document 3 discloses a door structure having a closed cross-sectional structure for suppressing deformation of an installation portion of a door latch at the time of a side collision of a vehicle.

JP 2008-307972 A JP 2008-260511 A Japanese Patent No. 2877441

  When a test assuming a side collision of a vehicle is performed, the door may open during or after the collision depending on the mode of the collision. For example, when an obstacle (impactor) is caused to collide from the side of the door, the latch pole member may move in the unlocking direction for some reason as the door pushed by the obstacle is deformed inside the vehicle. There is. Since the latch pole member is urged to the locked position by the spring, even if the latch pole member temporarily moves in the unlocking direction, the latch pole member is locked by the elasticity of the spring during or after the collision. If you return to, the door will not open.

  However, depending on the deformation state of the door, as the door lock device moves to the inside of the vehicle, the inner panel of the door abuts the pole lever while the latch pole member moves in the unlocking direction, and the inner panel is deformed. May hold the pole lever in the unlocked position. In that case, if a force acts in the direction in which the door opens during or after the collision, the door may be opened unexpectedly. The door structure described in Patent Documents 1 to 3 is not effective for opening the door due to such a collision.

  Accordingly, it is an object of the present invention to provide a vehicle door lock device that can prevent a door from being opened due to a collision.

  The vehicle door lock device according to the present invention includes a base having a slit that is fixed to the door and into which a striker on the vehicle body side can enter, a meshing position that is provided on the base and holds the striker, and a non-meshing position that releases the striker. A latch member that is pivotable over a range, a latch that is movable between a lock position that holds the latch member in the meshing position and an unlocking position that releases the latch member, and is biased toward the lock position by a spring A pole member, a pole lever that moves together with the latch pole member between the lock position and the unlock position, an operation unit that can operate the pole lever from the lock position toward the lock release position, and a spacer member. It has. The spacer member includes an attachment portion supported by the base body, and a lever protection portion that is disposed along the vehicle inner surface of the base body and surrounds the pole lever. It is arranged so as to be located on the inner side of the vehicle than the side surface of the pole lever, and the lever protecting portion forms a space portion that allows the movement of the pole lever.

  In one embodiment of the present invention, the base has a metal frame and a resin guide member. The guide member includes a recess that receives the striker, and an extension that extends from an opening end of the recess toward a vehicle inner surface of the frame, and the spacer member includes the extension and the extension An insertion portion is inserted between the frame and the vehicle inner surface.

  The spacer member is disposed, for example, between an inner panel of a door and the frame. Also, the mounting portion is provided at the lower end of the spacer member, the insertion portion is provided at the upper end of the spacer member, and the lever protection portion having a shape curved in a substantially C shape between the mounting portion and the insertion portion. May be formed.

  According to the present invention, even if the door is deformed by a collision and the pole lever moves in the unlocking direction, the spacer member prevents the pole lever from being held in the unlocking position by a part of the door. Thus, the pole lever can be returned to the locked position by a spring. For this reason, the latch pole member can return to the lock position, and the door is kept closed by maintaining the latch member in the meshing position.

The perspective view of a part of vehicles provided with the door lock device concerning one embodiment of the present invention. FIG. 2 is a perspective view of the vehicle door lock device shown in FIG. 1. The front view which looked at the state which the latch member of the door lock apparatus shown by FIG. 2 exists in a meshing position from the vehicle rear side. The front view which shows the state which the latch pole member of the door lock apparatus shown by FIG. 2 moved to the unlocking direction. The front view which shows the state which the latch member of the door lock apparatus shown by FIG. 2 moved to the non-meshing position.

A vehicle door lock device according to one embodiment of the present invention will be described below with reference to FIGS.
FIG. 1 is a perspective view of a part of a vehicle 10 as viewed from the vehicle rear side with a door (side door) 11 on the driver's seat side opened. The door 11 of the vehicle 10 is provided with a door lock device 12 for keeping the door 11 in a closed state.

  The vehicle 10 shown in FIG. 1 is a so-called left-hand drive vehicle in which a driver's seat 15 and a steering wheel 16 are disposed on the left side of a vehicle body 14. The door lock device 12 provided on the door 11 of the driver seat 15 of the left-hand drive vehicle and the door lock device provided on the door of the driver seat of the right-hand drive vehicle have the same basic configuration (but left-right symmetry). In the description, the door lock device 12 of the left-hand drive vehicle will be described as an example.

  The door 11 includes a door body 20, a door glass 21 that can be raised and lowered, a trim member 22 provided on the inner side of the vehicle, and the like. The door body 20 includes an inner panel 25 located on the inner side of the vehicle, an outer panel 26 located on the outer side of the vehicle, a reinforcement member (not shown), and the like, and is attached to the vehicle body 14 by a hinge mechanism (not shown). Inside the door 11, an inside handle 27 used when unlocking the door lock device 12 is provided. An outside handle (not shown) used when unlocking the door lock device 12 is also provided on the vehicle exterior side of the door 11.

  FIG. 2 is a perspective view of the door lock device 12 as viewed obliquely from above. 3 to 5 are front views of the door lock device 12 as seen from the rear side of the vehicle. The door lock device 12 of the present embodiment includes a base body 30 fixed to the door body 20, a latch member 31 provided on the base body 30 so as to be rotatable, and a latch pawl member 32. A pawl lever 33, operating members 34 and 35 (only part of which are shown in FIG. 2), a spacer member 40, and the like.

  As shown in FIG. 2, the base body 30 of the door lock device 12 includes a frame 41 formed by pressing a sheet metal into a predetermined shape, a plate member 42 made of sheet metal, and a guide member 43 made of resin. The frame 41, the plate member 42, and the guide member 43 are fastened to each other by shafts 45 and 46.

  The base body 30 is fixed to the vertical wall 20a on the vehicle rear side of the door body 20 shown in FIG. As shown in FIG. 2, the plate member 42 is formed with a screw hole 51 into which the screw member 50 is inserted. The plate member 42 is formed with a slit 56 into which a striker 55 (shown in FIGS. 3 to 5) can enter. The striker 55 is fixed to the pillar portion 14a of the vehicle body 14 (shown in FIG. 1).

  The guide member 43 is provided so as to be sandwiched between the frame 41 and the plate member 42. The guide member 43 is formed with a recess 60 for receiving the striker 55 at a position corresponding to the slit 56. A flange-like extension portion 61 is formed at the opening end 60 a of the recess 60. The extending part 61 extends in the direction of the frame 41 from the vicinity of the plate member 42. The distal end portion 61 a of the extending portion 61 is along the vehicle inner surface 41 a of the frame 41.

  3 and 4 show the meshing position of the latch member 31. FIG. 5 shows the non-meshing position of the latch member 31. The latch member 31 is supported by a shaft 45 provided on the base body 30 so as to be rotatable about the shaft 45. The latch member 31 includes a first convex portion 65, a second convex portion 66, and a concave portion 67 formed between the convex portions 65 and 66. The latch member 31 can rotate between the meshing position and the non-meshing position, and is always urged by the spring 68 toward the non-meshing position.

  3, the striker 55 that has entered the slit 56 is inserted between the convex portions 65 and 66 of the latch member 31. In the non-engagement position shown in FIG. 5, the striker 55 is detached from between the convex portions 65 and 66.

  The latch pole member 32 is supported by a shaft 46 provided on the base body 30 so as to be rotatable about the shaft 46. FIG. 3 shows a state in which the latch pole member 32 is moved to the lock position (position where the latch member 31 is held in the meshing position). FIG. 4 shows a state where the latch pole member 32 has moved to the unlocking position (position where the latch member 31 is opened). That is, the latch pole member 32 can rotate between the lock position shown in FIG. 3 and the lock release position shown in FIG. The latch pole member 32 is constantly urged toward the lock position by a spring (return spring) 70 such as a torsion coil spring.

  The pole lever 33 is mounted coaxially with the latch pole member 32 and moves together with the latch pole member 32 over the shaft 46 between the lock position (FIG. 3) and the lock release position (FIG. 4). ing. The pole lever 33 moves to the lock release position when the interlocking member (operation unit) 75 operated by the operation member 34 shown in FIG. The interlocking member 75 functions as an operation unit for moving the pole lever 33 toward the unlock position.

  The operating member 34 is made of, for example, a push-pull cable or a rod, and is pulled when the inside handle 27 (shown in FIG. 1) is operated in the unlocking direction, thereby rotating the interlocking member 75 upward. It has become. When the interlocking member 75 rotates upward, the latch pole member 32 and the pole lever 33 move in the unlocking direction.

  In addition to the operation member 34, the door 11 has an operation member (for example, an operation member linked to the outside handle) that can move the pole lever 33 in the unlocking direction. Since it is the same as that of the operation member 34 in that it is moved in the direction, the description is omitted. When the locking operation member 35 is operated, the interlocking member 75 is locked so that the pole lever 33 does not move in the unlocking direction.

  The spacer member 40 has an attachment portion 80 fixed to the frame 41 of the base body 30, a substantially C-shaped lever protection portion 81, and an insertion portion 82 located on the upper end side. An example of the spacer member 40 is an integrally molded product of hard resin, but fiber reinforced resin may be used. A composite material of resin and metal may be used. In the example of the spacer member 40 shown in FIG. 2, the thickness of the outer peripheral edge portion is larger than the thickness of the inner portion.

  The attachment portion 80 located near the lower end of the spacer member 40 has a clip portion 86 that is fixed by being inserted into a hole 85 formed in the extension portion 41 b on the lower end side of the frame 41. That is, the spacer member 40 is attached to the base body 30 using a part of the frame 41. Note that the spacer member 40 may be fixed to the base body 30 by a fixing means other than the clip portion 86 (for example, a screw member or a rivet).

  The lever protection portion 81 is disposed between the inner panel 25 (shown in FIGS. 3 to 5) and the frame 41 along the vehicle inner surface 41 a of the frame 41. As shown in FIG. 2, the lever protection portion 81 has a portion 81 a that faces the lower surface of the pole lever 33, a portion 81 b that faces the rear surface of the pole lever 33, and a portion 81 c that faces the upper surface of the pole lever 33. . In short, the lever protection portion 81 has a shape that is curved in a substantially C shape so as to surround the pole lever 33 around a half or more.

  A space S that allows the pole lever 33 to move between the lock position and the unlock position is formed in an inner region surrounded by the portions 81a, 81b, and 81c of the lever protection portion 81. The insertion portion 82 provided at the upper end of the spacer member 40 is inserted between the distal end portion 61 a of the extension portion 61 of the guide member 43 and the vehicle inner surface 41 a of the frame 41.

  As shown in FIG. 3, the side surface 33 a of the pole lever 33 protrudes to the vehicle inner side than the surface 41 a of the frame 41 on the vehicle inner side. The thickness T of the spacer member 40 is such that the protruding amount of the pole lever 33 (the protruding amount from the vehicle inner surface 41a) is such that the side surface 40a of the spacer member 40 is positioned on the vehicle inner side than the side surface 33a of the pole lever 33. Is bigger than.

The operation of the door lock device 12 of the present embodiment will be described below with reference to FIGS.
FIG. 3 shows a state in which the door 11 is closed (full latch position). In a state where the door 11 is closed, the striker 55 enters the slit 56 of the door lock device 12 and the latch member 31 has moved to the meshing position. In this meshing position, the striker 55 is fitted in the concave portion 67 between the convex portions 65 and 66 of the latch member 31, and the latch member 31 is held in the meshing position by the latch pole member 32.

  When the inside handle 27 is operated in the unlocking direction in order to open the door 11, the operating member 34 is pulled, so that the interlocking member 75 moves upward. As a result, the pole lever 33 rotates in the unlocking direction indicated by the arrow R1 in FIG. 4, and the latch pole member 32 also moves in the unlocking direction. When the door 11 is moved in the opening direction in this state, as shown in FIG. 5, the latch member 31 rotates in the direction indicated by the arrow R <b> 2 toward the non-engagement position, and the striker 55 is released from the latch member 31. Therefore, the door 11 can be opened.

  When the door 11 is closed, the striker 55 enters the slit 56 of the door lock device 12 as shown in FIG. Furthermore, when the striker 55 hits the first convex portion 65 of the latch member 31, the latch member 31 rotates in the direction indicated by the arrow R3 in FIG. Then, at the moment when the second convex portion 66 of the latch member 31 passes through the latch pole member 32 and moves to the full latch position, the latch pole member 32 is rotated to the lock position shown in FIG. 31 is locked in the meshing position by the latch pole member 32.

  Assume that a collision load F (shown in FIG. 3) is input from the side surface direction of the door 11 in a state where the door 11 is closed. If the door 11 is deformed inward of the vehicle by the collision load F, it is conceivable that the door lock device 12 moves in a direction in which it hits the inner panel 25. In that case, the side surface 33 a of the pole lever 33 approaches the inner panel 25.

  However, since the spacer member 40 is interposed between the inner panel 25 and the frame 41 of the door lock device 12 in the door lock device 12 of the present embodiment, the inner panel 25 that attempts to approach the door lock device 12 is provided. It can be received by the spacer member 40. For this reason, the space part S which can rotate the pole lever 33 to an up-down direction is ensured between the inner panel 25 and the flame | frame 41 similarly to before a collision.

  For this reason, even if the pole lever 33 moves in the unlocking direction shown in FIG. 4 due to some cause at the time of the collision, if the force that has moved the pole lever 33 is eliminated, the elasticity of the spring 70 causes the pole lever 33 to move. 3 can be returned to the locked position shown in FIG. 3 and the latch pole member 32 is also returned to the locked position, so that the door 11 can be kept closed by holding the latch member 31 in the meshing position. Therefore, the door 11 can be prevented from opening during or after the collision.

  The spacer member 40 of this embodiment includes an insertion portion 82 that is interposed between the extension portion 61 of the guide member 43 and the frame 41. For this reason, even if the inner panel 25 pushes the extension portion 61 of the guide member 43 by the collision load F, the insertion of the spacer member 40 indicates that the extension portion 61 hits the pole lever 33 and the pole lever 33 does not move. This can be avoided by interposing the portion 82 between the frame 41 and the extending portion 61.

  The lower end side of the spacer member 40 is supported by the frame 41 by the mounting portion 80. The insertion portion 82 on the upper end side of the spacer member 40 is only inserted between the extension portion 61 of the guide member 43 and the frame 41 and is not particularly fixed. However, when the inner panel 25 approaches the frame 41 due to a collision load from the side, the inner panel 25 hits the extension portion 61 at a relatively early stage, and the insertion portion 82 of the spacer member 40 becomes the extension portion 61 and the frame 41. Therefore, the upper end side of the spacer member 40 is supported. That is, both ends of the spacer member 40 are supported by the attachment portion 80 on the lower end side and the extension portion 61 on the upper end side. Therefore, the spacer member 40 can be supported in a stable state at the time of collision, and the spacer member 40 can be reliably stopped at a predetermined position (a position that does not hinder the movement of the pole lever 33). Moreover, if the spacer member 40 is made of resin, it is possible to avoid the generation of abnormal noise even if the frame 41 is touched by vibration during traveling.

  In practicing the present invention, the shape and arrangement of each element constituting the door lock device of the present invention, including the specific shape of the base, latch member, latch pole member, pole lever, spacer member, etc. Needless to say, the present invention can be implemented with various modifications. The door lock device of the present invention can also be applied to doors other than the driver's seat and doors other than the side doors.

  DESCRIPTION OF SYMBOLS 10 ... Vehicle, 11 ... Door, 12 ... Door lock device, 20 ... Door main body, 25 ... Inner panel, 30 ... Base | substrate, 31 ... Latch member, 32 ... Latch pole member, 33 ... Pole lever, 34 ... Operation member, 40 ... spacer member, 41 ... frame, 42 ... plate member, 43 ... guide member, 55 ... striker, 56 ... slit, 61 ... extension part, 70 ... spring, 75 ... interlocking member (operation part), 80 ... attachment part, 81 ... Lever protection part, 82 ... insertion part, S ... space part.

Claims (4)

A base body having a slit fixed to a door and capable of entering a striker on the vehicle body side;
A latch member provided on the base body and rotatable between a meshing position for holding the striker and a non-meshing position for releasing the striker;
A latch pole member movable between a lock position for holding the latch member in the meshing position and an unlock position for releasing the latch member, and biased toward the lock position by a spring;
A pole lever that moves with the latch pole member over the locked and unlocked positions;
An operation unit operable to operate the pole lever from the locked position toward the unlocked position;
A mounting portion supported by the base body, and a lever protection portion that is disposed along a vehicle inner surface of the base body and surrounds the pole lever, and the side surface of the lever protection portion is more than the side surface of the pole lever. A spacer member that is arranged to be located inside the vehicle, and that forms a space portion that allows the movement of the pole lever by the lever protection portion;
A vehicle door lock device comprising: The base has a metal frame and a resin guide member, the guide member receiving a striker, and an extension extending from the open end of the recess toward the inner surface of the frame. And
2. The vehicle door lock device according to claim 1, wherein the spacer member includes an insertion portion that is inserted between the extension portion and a surface on the vehicle inner side of the frame.   The vehicle door lock device according to claim 2, wherein the spacer member is disposed between an inner panel of the door and the frame.   The attachment portion is provided on the lower end side of the spacer member, the insertion portion is provided on the upper end side of the spacer member, and the lever protection portion is formed between the attachment portion and the insertion portion. The vehicle door lock device according to claim 2 or 3.

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