JP7014026B2 - Vehicle door lock device - Google Patents

Description

The present invention relates to a vehicle door lock device.

Japanese Patent Application Laid-Open No. 2017-57655 (Patent Document 1) discloses a configuration of a vehicle door lock device. The vehicle door lock device described in Patent Document 1 includes a casing, a latch mechanism portion, and a locking / unlocking mechanism portion. The casing has a first storage section and a second storage section. The first storage section is a space section for storing the locking / unlocking mechanism section. The second storage portion is a space portion for storing the latch mechanism portion. The second accommodating portion of the casing has a function of protecting the latch mechanism portion.

Japanese Unexamined Patent Publication No. 2017-57655

By the way, at the time of a vehicle side collision, an impact force in the vehicle width direction is applied to the vehicle door to which the vehicle door lock device is attached. At this time, peripheral members of the vehicle door lock device such as a door panel may be deformed to exert a force on the casing, and the second storage portion that protects the latch mechanism portion may be detached together with the first storage portion.

The present invention has been made in view of the above problems, and is a vehicle door capable of suppressing the vertical portion of the body constituting the second storage portion from being detached from the latch mechanism portion in the event of a vehicle side collision. It is intended to provide a locking device.

The vehicle door lock device based on the present invention includes a latch mechanism portion, a lock mechanism portion, a first body, a second body, and a first high-strength member. The latch mechanism includes a latch, a pole that can be engaged with the latch, and a spring for a pole that urges the pole, and can hold the vehicle door in a closed state with respect to the vehicle body. The lock mechanism unit sets the latch mechanism unit in an unlocked state in which the engagement with the striker provided on the vehicle body can be released or in a locked state in which the engagement with the striker cannot be released. A latch mechanism portion is attached to the first body. A lock mechanism portion is attached to the second body. The first high-strength member is made of a material having a higher strength than the material constituting the second body. The second body includes a base portion and an upright portion. The erection portion is erected from the edge of the base portion and is connected to the first body. The first high-strength member is fixed to the upright portion of the second body. On the edge of the first high-strength member, a boundary adjoining portion extending along the outer surface of the erecting portion is provided adjacent to the boundary between the base portion and the erecting portion.

In one embodiment of the present invention, the first high-strength member further includes an extending portion extending along the outer surface of the standing portion in a direction away from the boundary adjacent portion from the base portion.

In one embodiment of the invention, the vehicle door lock device further comprises a second high strength member. The second high-strength member is attached to the outer surface of the first body and is made of a material having a higher strength than the material constituting the first body. The first high-strength member further includes a bent portion that is bent from the extending portion and connected to the second high-strength member.

In one embodiment of the present invention, ribs extending continuously from one end to the other end of the second body in the height direction of the vehicle along the edge of the standing portion are provided on the inner surface of the second body. It is provided. On the inner surface of the second body, the inclined or curved surface of the boundary extends continuously from one end to the other end of the second body in the height direction of the vehicle without being blocked by the ribs.

According to the present invention, it is possible to prevent the erecting portion of the body constituting the storage portion for accommodating the latch mechanism portion from being detached from the latch mechanism portion at the time of collision on the vehicle side.

It is a perspective view which shows the appearance of the door lock device for a vehicle which concerns on one Embodiment of this invention. FIG. 1 is a view of the vehicle door lock device of FIG. 1 as viewed from the direction of arrow II. FIG. 1 is a view of the vehicle door lock device of FIG. 1 as viewed from the direction of arrow III. FIG. 3 is a view of the vehicle door lock device of FIG. 3 as viewed from the direction of arrow IV. FIG. 3 is a cross-sectional view of the vehicle door lock device of FIG. 3 as viewed from the direction of the arrow along the VV line. FIG. 2 is a cross-sectional view of the vehicle door lock device of FIG. 2 as viewed from the direction of the arrow on the VI-VI line. 2 is a cross-sectional view of the vehicle door lock device of FIG. 2 as viewed from the direction of the arrow along the VII-VII line. It is a figure which shows the state which removed the base plate from the door lock device for a vehicle which concerns on one Embodiment of this invention. It is a figure which shows the latch mechanism part and a part of the lock mechanism part in the state which the base plate is removed from the door lock device for a vehicle which concerns on one Embodiment of this invention. It is a figure which shows a part of the latch mechanism part and the lock mechanism part of the door lock device for a vehicle which concerns on one Embodiment of this invention. It is a perspective view which shows the appearance of the protection plate provided in the door lock device for a vehicle which concerns on one Embodiment of this invention. 11 is a view of the protective plate of FIG. 11 as viewed from the direction of arrow XII. FIG. 12 is a view of the protective plate of FIG. 12 as viewed from the direction of arrow XIII. It is a figure which looked at the protection plate of FIG. 13 from the direction of arrow XIV. It is a perspective view which shows the shape of the inner surface of the 2nd body provided in the door lock device for a vehicle which concerns on one Embodiment of this invention. It is a figure which shows the state which the impact force is applied to the vehicle door to which the door lock device for a vehicle is attached. It is a perspective view which shows the growth behavior of the crack in the 2nd body when the impact force acts on the door lock device for a vehicle which concerns on a comparative example. It is a perspective view which shows the growth behavior of a crack in a 2nd body when an impact force acts on the door lock device for a vehicle which concerns on one Embodiment of this invention.

Hereinafter, a vehicle door lock device according to an embodiment of the present invention will be described with reference to the drawings. In the following description, the same or corresponding parts in the drawings are designated by the same reference numerals, and the description thereof will not be repeated.

FIG. 1 is a perspective view showing the appearance of a vehicle door lock device according to an embodiment of the present invention. FIG. 2 is a view of the vehicle door lock device of FIG. 1 as viewed from the direction of arrow II. FIG. 3 is a view of the vehicle door lock device of FIG. 1 as viewed from the direction of arrow III. FIG. 4 is a view of the vehicle door lock device of FIG. 3 as viewed from the direction of arrow IV. FIG. 5 is a cross-sectional view of the vehicle door lock device of FIG. 3 as viewed from the direction of the arrow along the VV line. FIG. 6 is a cross-sectional view of the vehicle door lock device of FIG. 2 as viewed from the direction of the arrow along the VI-VI line. FIG. 7 is a cross-sectional view of the vehicle door lock device of FIG. 2 as viewed from the direction of the arrow along the VII-VII line.

FIG. 8 is a diagram showing a state in which the base plate is removed from the vehicle door lock device according to the embodiment of the present invention. In FIG. 8, it is shown when viewed from the same direction as in FIG. FIG. 9 is a diagram showing a part of a latch mechanism portion and a lock mechanism portion in a state where the base plate is removed from the vehicle door lock device according to the embodiment of the present invention. In FIG. 9, it is shown when viewed from the same direction as in FIG. FIG. 10 is a diagram showing a part of a latch mechanism portion and a lock mechanism portion of a vehicle door lock device according to an embodiment of the present invention. In FIG. 10, it is shown when viewed from the side opposite to that in FIG.

As shown in FIGS. 1 to 10, the vehicle door lock device 100 according to the embodiment of the present invention includes a latch mechanism unit 200, a lock mechanism unit 300, a first body 110, a second body 120, and the like. A protective plate 140, which is a first high-strength member, is provided. The vehicle door lock device 100 further includes a base plate 150 which is a second high-strength member. The vehicle door lock device 100 further includes a resin cover 130 and a steel plate sub-base plate 170.

A latch mechanism portion 200 is attached to the first body 110. A lock mechanism portion 300 is attached to the second body 120. The second body 120 includes a base 121 and an upright portion 122. The upright portion 122 is located substantially perpendicular to the base portion 121. In the second body 120, the boundary 123 is located between the base portion 121 and the upright portion 122. In this embodiment, the boundary 123 is composed of an inclined surface. However, the boundary 123 is not limited to the inclined surface, and may be composed of a curved surface.

A cover 130 is attached to the base 121. The upright portion 122 is erected from the edge of the base portion 121 and is connected to the first body 110 by a bolt 180. Each of the first body 110 and the second body 120 is made of a resin such as an epoxy resin.

The first body 110 has a base plate 150 attached to the back side and a sub base plate 170 attached to the front side. The first body 110 includes a vertical wall portion 113 sandwiched between the base plate 150 and the sub-base plate 170. That is, the base plate 150 is attached to the outer surface of the first body 110.

Each of the base plate 150 and the sub base plate 170 is made of a material having a higher strength than the material constituting the first body 110. In the present embodiment, each of the base plate 150 and the sub-base plate 170 is made of a metal plate such as a steel plate.

As shown in FIGS. 8 to 10, the latch mechanism portion 200 includes a metal latch 210, a metal pole 220, a pole spring 230, a steel plate lift lever 240, and a rubber stopper 290. including. A latch 210 and a pole 220 are arranged on the back side of the vertical wall portion 113. A stopper 290 is fixed to the back surface of the vertical wall portion 113.

A latch support shaft 214 that rotatably supports the latch 210 and a pole support shaft 223 that rotates integrally with the pole 220 are attached to the first body 110. The first body 110 is provided with a striker insertion groove 111 and a locking portion 112.

The striker insertion groove 111 is a groove in which the striker 1 attached to the vehicle body relatively enters and retracts when the vehicle door is opened and closed, and is formed horizontally at substantially the center of the first body 110. A rubber cushion for elastically receiving the entry of the striker 1 is attached to the closed end portion of the striker insertion groove 111. The locking portion 112 defines an unlatch position in which the latch 210 does not engage the striker 1.

The base plate 150 is provided with a hole for supporting the latch support shaft 214, a hole for supporting the pole support shaft 223, and a slit 154 through which the striker 1 is inserted. The base plate 150 is connected to the sub-base plate 170 via a latch support shaft 214 and a pole support shaft 223.

The base plate 150 is a first side surface that is bent from the edge of the back surface portion 151 facing the vertical wall portion 113 of the first body 110 and the back surface portion 151 on the distal end side in the insertion direction of the striker 1 to cover one side surface of the first body 110. A portion 152 and a second side surface portion 153 that bends from the edge of the back end portion 151 on the rear end side in the insertion direction of the striker 1 and covers the other side surface of the first body 110.

The sub-base plate 170 is provided with a hole for supporting the latch support shaft 214 and a hole for supporting the pole support shaft 223. The sub-base plate 170 sandwiches the first body 110 and the lift lever 240 with the base plate 150.

The latch 210 is rotatably supported by the base plate 150 and the sub-base plate 170 via the latch support shaft 214. The latch 210 is urged in the A1 direction shown in FIG. 9 by a latch spring 250 coaxially assembled to the latch support shaft 214. When the vehicle door is closed, the latch 210 is pushed by the striker 1 to rotate against the urging force of the latch spring 250.

The latch 210 has a full latch position that holds the vehicle door in the fully closed state by engaging with the striker 1, a half latch position that holds the vehicle door in the half-door state by engaging with the striker 1, and the striker 1. It is rotatably provided at the unlatch position where it does not engage.

The latch 210 has a striker holding groove 211 that engages with the striker 1 and a latch claw 212 that is adjacent to the striker holding groove 211. The striker holding groove 211 is a groove that slidably engages with the striker 1 that relatively enters and retracts when the vehicle door is opened and closed. The striker holding groove 211 holds the striker 1 in cooperation with the slit 154 of the base plate 150. The latch claw 212 is located on the front side of the striker holding groove 211 in the rotation direction of the latch 210 when engaging with the striker 1.

The latch 210 further has a holding claw 213 adjacent to the striker holding groove 211 on the side opposite to the latch claw 212, and a locked portion 215. The holding claw 213 is located on the rear side of the striker holding groove 211 in the rotation direction of the latch 210 when engaging with the striker 1. The locked portion 215 comes into contact with the locking portion 112 when the latch 210 is in the unlatch position. That is, when the latch 210 is not engaged with the striker 1, the latch 210 is rotated in the A1 direction by the urging force of the latch spring 250 until the locked portion 215 abuts on the locking portion 112.

The pole 220 is supported by the base plate 150 and the sub-base plate 170 so as to rotate integrally with the lift lever 240 via the pole support shaft 223. The pole 220 is urged in the B1 direction shown in FIG. 9 by a pole spring 230 coaxially assembled to the pole support shaft 223. When the lift lever 240 is pressed, the pole 220 rotates against the urging force of the pole spring.

The pole 220 engages with the latch 210 in the latch position to restrict the rotation of the latch 210 in the direction of disengagement from the striker 1, and engages with the latch 210 in the half latch position. The latch 210 is rotatably provided in a state where the rotation of the latch 210 in the direction of disengagement from the striker 1 is restricted and a state in which the latch 210 is not engaged with the striker 210. That is, the pole 220 is provided so as to be engageable with the latch 210.

The pole 220 has an engaging portion 221 and an extending portion 222. The engaging portion 221 is provided at a position where it can engage with the holding claw 213 of the latch 210 at the latch position and at a position where it can engage with the latch claw 212 of the latch 210 at the half latch position. When the engaging portion 221 and the holding claw 213 are engaged, and when the engaging portion 221 and the latch claw 212 are engaged, the direction in which the latch 210 is disengaged from the striker 1 (the direction in which the latch 210 is disengaged from the striker 1). Rotation in the A1 direction) is restricted. As a result, the latch mechanism unit 200 can hold the vehicle door in a closed state with respect to the vehicle body.

The extending portion 222 is provided at a position where it can come into contact with the stopper 290. When the lift lever 240 is not pressed, the pole 220 is rotated in the B1 direction by the urging force of the pole spring 230 until the extension portion 222 abuts on the stopper 290.

The lift lever 240 is assembled to the pole support shaft 223. The lift lever 240 is rotated via the lock mechanism unit 300 by operating either the outside door handle or the inside door handle, which is an operation unit provided on the vehicle door. The lift lever 240 has one end portion 241 located on one side in the radial direction of the pole support shaft 223 and the other end portion located on the other side in the radial direction of the pole support shaft 223 with the pole support shaft 223 as the center of rotation. It has 242.

The lock mechanism unit 300 sets the latch mechanism unit 200 in an unlocked state in which the engagement with the striker 1 provided on the vehicle body can be released or in a locked state in which the engagement with the striker 1 cannot be released. As shown in FIGS. 8 to 10, the lock mechanism portion 300 includes an open link 350 made of a steel plate, an outside open lever 360 made of a steel plate, and an inside open lever made of a steel plate (not shown).

The open link 350 is rotatably provided between the locked position and the unlocked position. The open link 350 is rotatably supported by a support shaft 352 projecting from the outside open lever 360. An open link spring (not shown) is provided between the support shaft 352 and the open link 350. The open link spring urges the open link 350 toward the unlocked position in the C1 direction shown in FIG.

When the open link 350 is in the unlocked position, the tip portion 351 of the open link 350 faces the one end portion 241 of the lift lever 240, and the one end portion 241 of the lift lever 240 can be pressed. The open link 350 is operated by operating an operation unit provided on the vehicle door.

The outside open lever 360 is rotatably supported by a rotation shaft 363 provided on the upright portion 122 of the second body 120. The outside open lever 360 is rotatably provided between a pressing position for pressing the open link 350 and a non-pressing position for not pressing the open link 350.

The outside open lever 360 has one end portion 361 and the other end portion 362 located on opposite sides of the rotation shaft 363. One end 361 of the outside open lever 360 is connected to the outside handle via a rod (not shown). A support shaft 352 is provided so as to project from the other end 362 of the outside open lever 360.

The outside open lever 360 is urged in the D1 direction shown in FIG. 10 by an open lever spring (not shown) coaxially assembled to the rotation shaft 363. By pressing one end portion 361 from the rod, the outside open lever 360 rotates from the non-pressing position to the pressing position against the urging force of the open lever spring.

The outside open lever 360 is operated by operating an outside handle provided on the vehicle door to drive the open link 350 and press one end portion 241 of the lift lever 240 by the open link 350.

Specifically, when the outside handle is in the initial position, the outside open lever 360 is in the non-pressing position. At this time, the outside open lever 360 exerts no force on the open link 350.

When the outside handle moves from the initial position to the latch release position, the outside open lever 360 rotates to the pressing position. When the outside open lever 360 rotates to the pressing position when the open link 350 is in the unlocked position, the outside open lever 360 presses the open link 350 to drive the open link 350. The driven open link 350 presses one end portion 241 of the lift lever 240 at the tip portion 351 to rotate the lift lever 240. The pole 220 rotates with the rotation of the lift lever 240.

The open link 350 is also driven by an inside open lever linked to the inside handle by an operation wire. The inside open lever is rotatably provided between a pressing position for pressing the open link 350 and a non-pressing position for not pressing the open link 350.

The inside open lever is operated by operating the inside handle provided on the vehicle door to press the outside open lever 360. Then, the outside open lever 360 is pressed to drive the open link 350, and the open link 350 presses one end portion 241 of the lift lever 240.

Specifically, when the inside handle is in the initial position, the inside open lever is in the non-pressing position. At this time, the inside open lever exerts no force on the open link 350.

When the inside handle moves from the initial position to the latch release position, the inside open lever rotates to the pressing position. When the inside open lever rotates to the pressing position when the open link 350 is in the unlocked position, the inside open lever presses the open link 350 via the outside open lever 360 to drive the open link 350.

FIG. 11 is a perspective view showing the appearance of the protective plate provided in the vehicle door lock device according to the embodiment of the present invention. FIG. 12 is a view of the protective plate of FIG. 11 as viewed from the direction of arrow XII. FIG. 13 is a view of the protective plate of FIG. 12 as viewed from the direction of arrow XIII. FIG. 14 is a view of the protective plate of FIG. 13 as viewed from the direction of arrow XIV.

As shown in FIGS. 2 to 5, 7, 8, and 11 to 14, the protective plate 140 is fixed to the upright portion 122 of the second body 120 by bolts 180. The protective plate 140 is provided with a hole 144 through which the bolt 180 is inserted. As shown in FIG. 7, the protective plate 140 is arranged along the erection portion 122 so as to abut against the boundary 123 in the width direction W of the vehicle, which is the direction in which the impact force acts when the vehicle collides laterally. Has been done.

At the edge of the protective plate 140, a boundary adjoining portion 141 extending along the outer surface of the erecting portion 122 while being adjacent to the boundary 123 between the base portion 121 and the erecting portion 122 of the second body 120 is provided. In the present embodiment, the boundary adjacent portion 141 extends substantially linearly. However, the boundary adjacent portion 141 is not limited to the case where it extends linearly, and may extend along the boundary 123.

The protective plate 140 further includes an extension 142. The extending portion 142 extends along the outer surface of the standing portion 122 in a direction away from the boundary adjacent portion 141 and the base portion 121 of the second body 120. In the present embodiment, the extending portion 142 extends in a substantially rectangular shape. However, the extending portion 142 is not limited to the case where it extends in a rectangular shape, and may extend according to the shape of the outer surface of the standing portion 122.

The protective plate 140 further includes a bend 143. The bent portion 143 is bent from the extending portion 142 and is connected to the first side surface portion 152 of the base plate 150 by a bolt 190.

Specifically, the bent portion 143 is located substantially perpendicular to the extending portion 142. The bent portion 143 is provided with a hole through which the bolt 190 is inserted. The bolt 190 inserted through the hole of the bent portion 143 is screwed with the female screw provided on the shim 160. The shim 160 is joined to the first side surface portion 152 of the base plate 150. As a result, the bent portion 143 of the protective plate 140 is connected to the first side surface portion 152 of the base plate 150 via the shim 160. The shim 160 may not necessarily be provided, and the bent portion 143 may be directly connected to the first side surface portion 152 of the base plate 150.

The protective plate 140 is made of a material having a higher strength than the material constituting the second body 120. In this embodiment, each of the protective plate 140 and the shim 160 is made of a metal plate such as a steel plate.

FIG. 15 is a perspective view showing the shape of the inner surface of the second body included in the vehicle door lock device according to the embodiment of the present invention. As shown in FIG. 15, ribs 124 extending along the boundary 123 are provided on the inner surface of the second body 120. The rib 124 is continuously provided along the edge of the upright portion 122 from one end of the second body 120 in the height direction H of the vehicle to the vicinity of the rotation shaft 363 toward the other end. The rib 124 does not extend to the base 121. As a result, on the inner surface of the second body 120, the inclined surface or the curved surface of the boundary 123 continuously extends from one end to the other end of the second body 120 in the height direction H of the vehicle without being blocked by the rib 124. It exists.

FIG. 16 is a diagram showing a state in which an impact force is applied to a vehicle door to which a vehicle door lock device is attached. As shown in FIG. 16, the vehicle door lock device 100 is attached to the inner panel 2 of the vehicle door. The impact force F applied to the outer panel 3 of the vehicle door at the time of the vehicle side collision acts on the vehicle door lock device 100.

The mode of action of the impact force F on the vehicle door lock device 100 includes a mode in which the second body 120 acts as a tensile load so as to open at the boundary 123 between the base portion 121 and the upright portion 122. There is a form in which the body 120 acts as a compressive load so as to buckle at the boundary 123 between the base portion 121 and the upright portion 122. When the second body 120 is destroyed by the impact force F, stress is concentrated on the boundary 123 and cracks are generated in any of the modes of action.

Here, the vehicle door according to the comparative example different from the vehicle door lock device 100 according to the present embodiment only in that the protective plate 140 is not attached and the rib 124 is not provided on the second body 120. The crack growth behavior in the second body 120 when the impact force F acts on the lock device will be described.

FIG. 17 is a perspective view showing the crack growth behavior in the second body when an impact force is applied to the vehicle door lock device according to the comparative example. As shown in FIG. 17, when the impact force F acts on the vehicle door lock device 900 according to the comparative example, the crack C generated at the boundary 123 propagates so as to cross the erection portion 122. When the crack C grows in this way, the upright portion 122 of the second body 120 is detached from the latch mechanism portion 200.

FIG. 18 is a perspective view showing the crack growth behavior in the second body when an impact force is applied to the vehicle door lock device according to the embodiment of the present invention. As shown in FIG. 18, when an impact force F acts on the vehicle door lock device 100 according to the embodiment of the present invention, the crack C generated at the boundary 123 is aligned with the boundary adjacent portion 141 of the protective plate 140. Guided by, it travels on the boundary 123. As a result, the crack C can be prevented from extending to the upright portion 122.

In the vehicle door lock device 100 according to the present embodiment, by inhibiting the extension of the crack C to the upright portion 122 as described above, the upright portion 122 of the second body 120 is latched at the time of the vehicle side collision. It is possible to suppress the detachment from the mechanism unit 200. Further, the rib 124 provided on the second body 120 also makes it difficult for the crack C to extend to the upright portion 122.

The erection portion 122 is distorted due to the extending portion 142 of the protective plate 140 extending along the outer surface of the erection portion 122 in a direction away from the boundary adjacent portion 141 to the base portion 121 of the second body 120. Since it can be regulated, it is possible to prevent the crack C from propagating so as to cross the erection portion 122. This also makes it possible to prevent the upright portion 122 of the second body 120 from being detached from the latch mechanism portion 200 when the vehicle side collides.

Since the bent portion 143 of the protective plate 140 is connected to the first side surface portion 152 of the base plate 150, the latch mechanism portion 200 can be sandwiched between the highly rigid protective plate 140 and the base plate 150, and the first body 110 And the upright portion 122 of the second body 120 can be prevented from being disconnected. This also makes it possible to prevent the upright portion 122 of the second body 120 from being detached from the latch mechanism portion 200 when the vehicle side collides.

The protective plate 140 does not necessarily have to include the extending portion 142. The bent portion 143 may not be connected to the base plate 150. The protective plate 140 does not necessarily have to include the bent portion 143. In this case, the extending portion 142 may be joined to the base plate 150. The rib 124 does not necessarily have to be provided. When the rib 124 is provided, even if the protective plate 140 is not provided, the crack C can be prevented from easily extending to the upright portion 122, and the upright portion 122 of the second body 120 can be prevented from extending to the upright portion 122 at the time of a vehicle side collision. Can be prevented from being detached from the latch mechanism portion 200.

The embodiments disclosed this time should be considered to be exemplary and not restrictive in all respects. The scope of the present invention is shown by the scope of claims rather than the above description, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

1 striker, 2 inner panel, 3 outer panel, 100,900 vehicle door lock device, 110 first body, 111 striker insertion groove, 112 locking part, 113 vertical wall part, 120 second body, 121 base, 122 standing Installation, 123 Boundary, 124 Ribs, 130 Cover, 140 Protective Plate, 141 Boundary Adjacent Part, 142 Extension, 143 Bent, 144 Holes, 150 Base Plate, 151 Back, 152 1st Side, 153 2nd Sides, 154 slits, 160 shims, 170 sub-base plates, 180, 190 volts, 200 latch mechanisms, 210 latches, 211 striker holding grooves, 212 latch claws, 213 holding claws, 214 latch support shafts, 215 locked parts, 220 pole, 221 engagement part, 222 extension part, 223 pole support shaft, 230 pole spring, 240 lift lever, 241,361 one end, 242,362 other end, 250 latch spring, 290 stopper, 300 lock Mechanism part, 350 open link, 351 tip part, 352 support shaft, 360 outside open lever, 363 rotation shaft, C crack, F impact force.

Claims (4)

A latch mechanism that includes a latch, a pole that can engage with the latch, and a spring for the pole that urges the pole, and can hold the vehicle door in a closed state with respect to the vehicle body.
A lock mechanism unit for setting the latch mechanism unit in an unlocked state in which the engagement with the striker provided on the vehicle body can be released or in a locked state in which the engagement with the striker cannot be released.
The first body to which the latch mechanism is attached and
The second body to which the lock mechanism is attached and
It is provided with a first high-strength member made of a material having a higher strength than the material constituting the second body.
The second body includes a base and an upright portion erected from the edge of the base and connected to the first body.
The first high-strength member is fixed to the erecting portion of the second body.
A vehicle door lock having a boundary adjacent portion extending along the outer surface of the erecting portion while being adjacent to the boundary between the base portion and the erecting portion on the edge of the first high-strength member. Device. The vehicle door according to claim 1, wherein the first high-strength member further includes an extending portion extending along the outer surface of the standing portion in a direction away from the base portion from the boundary adjacent portion. Locking device. Further provided with a second high-strength member attached to the outer surface of the first body and made of a material having a higher strength than the material constituting the first body.
The vehicle door lock device according to claim 2, wherein the first high-strength member further includes a bent portion that is bent from the extending portion and connected to the second high-strength member. A rib extending continuously from one end to the other end of the second body in the height direction of the vehicle is provided on the inner surface of the second body along the edge of the upright portion.
On the inner surface of the second body, the inclined or curved surface of the boundary extends continuously from one end to the other end of the second body in the height direction of the vehicle without being blocked by the ribs. The vehicle door lock device according to any one of claims 1 to 3.

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