JPH063118Y2 - Vehicle door lock device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to a vehicle door lock device.

(Prior Art) Generally, a door for a vehicle is conventionally provided with a door lock device for locking the open / closed state.

And, among the door lock devices, for example, the actual opening sho 59
In the case of a door lock device for a side door of a vehicle as disclosed in Japanese Patent Publication No. 80060, a lock member that engages with a striker on the vehicle body side is provided on the rear end side of the door and the other door of the door is also provided. In many cases, the door inner handle for opening operation is installed on the front end side through the first link rod for opening operation so as to face the passenger compartment.
In such a case, the inner lock knob itself is also arranged in the vicinity of the door inner handle in the form of a seesaw-type push lever or a slide-type lever, and the second lock-operation second member is arranged in parallel on the operation rod.
There is one that is connected to the lock member via a link rod.

(Problems to be solved by the invention) However, in the case of the door lock device configured as described above,
For example, if a side impact is received in the door unlocked state where the inner lock knob is OFF, the opening / closing operation rod is deformed and bent due to the inward deformation of the door when the lock member is not locked. There is a concern that the stroke operation may be performed to release the engagement state between the lock member and the striker.

(Means for Solving the Problem) The present invention has been made for the purpose of solving the above-mentioned problems in the prior art, and includes a vehicle door that covers an opening of a vehicle body in an openable and closable manner, and a door for the vehicle. A lock member attached to the rear end portion and engaged with a striker provided in the corresponding vehicle body opening portion, and connected to the lock member via a first link rod provided on the front end portion side of the door. The inner handle and the first end provided on the front end side of the door
Vehicle door lock device including an inner lock knob connected to the lock member via a second link rod provided in parallel with the first link rod and the second link rod. Are bound by a binding member at predetermined positions so that they can be slid independently of each other in normal times and are integrally actuated when deformed, and when the vehicle side collision occurs, the first link rod and the second link rod When both are deformed by a predetermined stroke amount, the lock member is preferentially locked by utilizing the stroke amount of the second link rod that connects the inner lock knob and the lock member. It is a thing.

(Operation) In the above-described vehicle door lock device of the present invention, the first link rod connecting the door inner handle and the lock member and the second link rod connecting the inner lock knob and the lock member are in predetermined positions. Under normal conditions, they are bound together by a binding member that allows them to slide independently of each other and slides together when deformed, depending on the amount of deformation of the door during a vehicle side collision. The deformation stroke of the second link rod acts to lock the lock member prior to releasing the engagement state between the lock member and the striker on the vehicle body side due to the deformation of the first link rod.

(Effect of the Invention) Therefore, according to the configuration of the door lock device of the present invention,
Even in the case where the door lock is neglected at the time of a vehicle side collision, there is no concern that the door may be accidentally opened, and the reliability of the door lock device can be improved.

(Embodiment) FIGS. 1 to 5 show a vehicle door lock device according to an embodiment of the present invention.

First, FIG. 1 is a skeleton diagram showing an overall structure of a main part of a vehicle door (side door) 100 showing an overall configuration of the apparatus of the embodiment, and reference numeral 1 in the drawing denotes a door body portion of the door 100. Is shown.

Inside the door trim on the vehicle interior side of the door body portion 1, a door inner handle 3 and a door inner lock knob 4 located on the front end side are installed adjacent to each other in the vehicle front-rear direction in the same housing portion. . The door inner handle 3 and the door inner lock knob 4 are provided, for example, in FIGS.
As shown in detail in an enlarged manner in each of the drawings, it is attached to a door inner panel (not shown) of the door body 1 via a common mounting bracket 5.

First, in the door inner handle 3, the rear end portion side intermediate portion 3a of the rectangular ring-shaped member is pivotally attached to the hinge portion 7 formed on the mounting bracket 5 side via the hinge pin 7a so that the arrow (a) or ( It is supported rotatably in the (b) direction (in the horizontal plane direction). Further, the rear end side end portion 3b of the door inner handle 3 is extended to the back side of the base plate 5a of the mounting bracket 5, and the extended side end portion 3b is used as a first link rod for opening and closing the door. The pivot shaft 9 is attached to the front end of the door inner link 11 which is a member.
And a connecting member 10 which is loosely fitted to the pivot shaft 9 and is freely rotatable in the horizontal direction. The door inner link 11 for opening and closing the door is extended substantially straight from the door inner handle 3 to the rear end portion 100a of the door 100 as shown in FIG. 1, and the extended end portion 11b is provided. The door lock device 26 provided at the rear end portion 100a of the door 100 is pivotally attached to a pivoting end of a second lever 40, which will be described later, for opening the door.

On the other hand, the door inner lock knob 4 is provided with a slide knob 17 that is vertically slidably fitted in a knob holder 16 that is fastened and fixed to the front end portion 15 of the base plate 5a of the mounting bracket 5. There is. The slide knob 17 has a rod portion 17a on the back surface side thereof that protrudes through an elongated hole 18 for slide operation formed in the base plate 5a of the mounting bracket 5, and the rod portion 17a is locked. It engages with an end of the upper piece 19a of the angle-shaped first rotating lever 19 for operating the Couan lock. The center of rotation of the first rotating lever 19 is vertically rotatably supported by a support shaft 20 on the rear surface of the front end of the mounting bracket 5, and the end of the lower piece 19b is locked. Second for lock-unlock operation via member 21
It is pivotally attached to the lower end of the lower side of the lower piece 24b of the similar second turning lever 24 on the side of the door lock device 26 via the door lock knob connecting link 12 which is a link rod. The second
The rotation lever 24 is pivotally supported by the door inner panel via a support shaft 25 and is vertically rotatable. The end of the upper piece 24a on the side of the lock rod 2 is
It is pivotally attached to one end 45a of a fourth locking lever 45 through 9, as shown in detail in FIG.

Next, the door lock device 26 described above is the door lock device 26 described above.
0 is fixedly held in the vehicle body side opening in the closed state, and is configured as shown in detail in FIG.

In FIG. 4, reference numeral 30 first forms a housing portion of the door lock device 26, and the door lock device 26 constitutes the door inner panel 6 and the door inner panel 6 together with the door outer panel constituting a door body having a closed cross-section structure. (Not shown) and the rear end portion 10 of the door body 1
0a (see FIG. 1) is a lock base made of, for example, a synthetic resin, which serves as a mounting member to be mounted as shown in FIG.
The lock base 30 is formed with a fitting groove 31 which is located on an outer surface of a substantially central portion thereof and which is fitted into an engaging piece (strike) 32 on the vehicle body side. A lock claw that arbitrarily engages with the engagement piece 32 on the vehicle body side is pivotally supported in a vertically rotatable manner. (Not shown).

On the other hand, as shown in FIG. 4, the rear surface of the fitting groove 31 (side surface on the front side of the vehicle body) has a protrusion 33 protruding toward the front side of the vehicle body by a predetermined width according to the size of the fitting groove 31. ing. A set plate 34 made of a metal plate is integrally attached to the back side of the lock base 30 over substantially the entire surface except the surface of the protrusion 33 on the back side of the fitting groove. A lock mechanism described later is attached to the lock base 30 via the above. Further, the set plate 34 has a side wall portion 35 which is bent at a right angle to the front side of the vehicle body at the end portion of the lock base 30 on the vehicle compartment side and extends forward along the door inner panel 6 by a predetermined width. .

The lock mechanism includes a first lever 38 pivotally supported by a first fulcrum pin 37 fixed to the lock base 30 side through the set plate 34 and the other end 3 of the first lever 38.
The second fulcrum pin 39 on the side wall 35 side so as to be engageable with 8b.
The second lever 40 pivotally supported by the vertical direction by the
And the third fulcrum pin 4 at one end 38a of the first lever 38.
The third lever 43 pivotally supported via the second lever 43, the fourth lever 45 pivotally supported by the fourth fulcrum pin 44, and the lock release lever 46.

The first lever 38 is constantly urged to rotate in the direction of arrow D by the spring 47 between the first lever 38 and the side wall portion 35, but the second lever 40 is moved through the inner handle connecting link 11 described above. When the door inner handle 3 is rotated, it can be rotated in the arrow C direction against the spring force of the spring 47.
Further, the first lever 38 is also operated by pressing the door outer handle connecting link 49, which is engaged with the third fulcrum pin 42 in the long hole, downward with the door outer handle (not shown), and the arrow C It can be rotated in any direction. The rotation angle in the direction of arrow D or C is determined by the lock base 30 in the central portion of the device.
It is designed to be regulated by the first and second stopper members 50a and 50b provided at the upper edge of the fitting groove rear surface side protrusion 33.

The third lever 43 is moved in the up-down direction (arrow EF direction) in conjunction with the rotation of the first lever 38, and at the same time, is moved in the left-right direction (arrow GH) about the third fulcrum pin 42. ) Direction. This third
The lever 43 is provided with an engaging portion 52 that is capable of abuttingly engaging with an engaging portion 51 provided on a lock release lever 46 described later, and also has an arrow G-H with respect to an engaging portion 73 of a fourth lever 45 described later. Engage by pivoting in the direction.

Further, the fourth lever 45 has a lock rod 29 connected to the door inner lock knob 4 via the door lock knob connection link 12 at one end 45a thereof, and is pushed and pulled at the other end 45b by a turning operation of a key cylinder. Key cylinder connecting links 55 are connected to each other, and an arrow is drawn between a position shown by a solid line in FIG. 4 and a position shown by a chain line (reference numeral 45) in conjunction with the operation of the door inner lock knob 4 and the key cylinder. It can be rotated in the I-J direction. Therefore, with the rotation of the fourth lever 45 in the direction of arrow I-J, the third lever 43 is rotated.
Is swung in the direction of arrow G-H and between two positions, a first rotation position shown by a solid line in FIG. 4 and a second rotation position shown by a chain line (reference numeral 43) in FIG. It can be rotated with.

The lock release lever 46 has one end 46a as an engaging portion 51 that can abut the engaging portion 52 of the third lever 43, and the other end 43b is connected to one end of the interlocking connecting member 59. . The lock release lever 43 is constantly urged in the direction of arrow I by a spring (not shown), and the maximum rotation position in the direction of arrow I is the engaging portion 51.
Is regulated by abutting on the upper edge of the opening formed on the set plate 34 side. This lock release lever 4
6 has a locking action in a state where the rotation is restricted in the direction of arrow I (hereinafter, the lever position at this time is referred to as a lock position), and is rotated in the direction of arrow J by the engaging portion 52 of the third lever 43. In the opened state (indicated by a chain line (reference numeral 43 ')), the lock is released (hereinafter, the lever position at this time is referred to as the lock release position). The rotation angle of the third lever 43 is set so that the engagement portion 52 does not engage with the engagement portion 51 of the lock release lever 43 in the second rotation position.

In the door lock device 26 thus configured,
When both the door inner lock knob 4 and the key cylinder are in the unlocked state (the state shown by the solid line in FIG. 4), when the door inner handle 3 or the door outer handle is opened, the first lever 38 first moves in the direction of arrow C. The third lever 43 moves in the direction of the arrow F, and the engaging portion 52 of the third lever 43 abuts and engages with the engaging portion 51 of the lock releasing lever 43. The lock door is moved from the lock position to the lock release position, and as a result, the front door 100 is opened. In this case, the rotation angle of the first lever 38 in the unlocking direction (direction of arrow C) is determined by the protrusion 33 on the rear side of the fitting groove of the lock base 30.
The second stopper member 50b provided on the upper edge portion of the upper end portion is regulated by abutting on the other end side bottom portion 38c, and on the other hand, the first lever 3 after completion of the lock release.
The return rotation position in the direction of arrow D due to the pulling force of the spring 47 of 8 is the same as the first stopper member 50a provided on the opposite side with the first fulcrum pin 37 in between.
Is regulated by abutting on the one end side bottom portion 38b.

On the other hand, when both the door inner lock knob 4 and the key cylinder are in the locked state, the third lever 43
Is in the second rotation position and the engaging portion 52 of the third lever 43 is
Is in a state where it cannot engage with the engaging portion 51 of the lock release lever 43. Therefore, in this state, no matter how much the door outer handle or door inner handle 3
Even if is operated, the front door 100 is not opened but is held in the closed state.

On the other hand, the inner handle connecting link 11 and the door lock knob connecting link 12 described above are, as apparent from FIG. 1, in appearance in two places at their intermediate portions by a binding member 60 as shown in FIG. It is almost united.

That is, as is apparent from the configuration of FIG. 5, the binding member 60 is made of, for example, a metal material or a synthetic resin material having spring elasticity, and has a first cylindrical shape having a first forced fitting slit 61. The fitting portion 63 and the second fitting portion 64 having the second forcible fitting slit 62 and having the substantially cylindrical shape are integrally coupled by an intermediate coupling portion 65. Then, as shown in FIG. 1, the first fitting portion 63 is formed.
The inner handle connecting link 11 and the second fitting portion 64 are axially loosely fitted in the inner handle connecting link 11 and the door lock knob connecting link 12, respectively, so as to bind the two at two places, for example. There is. In this case, in particular, the door lock knob connecting link 12 is bent outward at a predetermined angle at predetermined positions on both ends of the fitting portion, and the binding members 6 are bent at the bending portions 121 and 122.
The sliding of 0 and 60 is locked. And
In the above case, the operating stroke of the door lock knob connecting link 12 is set smaller than the operating stroke of the inner handle connecting link 11.

Therefore, in a normal state, the inner handle connecting link 11 and the door lock knob connecting link 12 can freely slide relative to each other independently of the binding by the binding member 60. However, if the door 100 is deformed to the passenger compartment side at the time of a vehicle side collision, and the inner handle connecting link 11 is pulled in the door opening direction by a predetermined stroke due to the deformation, the deformation is caused. As a result, the bundling members 60, 60 cannot slide freely, and the inner handle connecting link 11 and the door lock knob connecting link 12 are integrally deformed. Due to the stroke relationship between the two (the door lock knob side is small), the door lock device 26 is locked by prioritizing the lock operation of the door lock knob connecting link 12 to the door inner handle connecting link 1
The door 100 is configured not to be opened depending on the deformation stroke of 1.

[Brief description of drawings]

FIG. 1 is a side view of a vehicle door according to an embodiment of the present invention showing a general structure of a vehicle door skeleton state, and FIG. 2 is a structure of an operating portion which is a main portion of the apparatus. Fig. 3 is a plan view of Fig. 3, Fig. 3 is a plan view of Fig. 4, Fig. 4 is a front view of the lock operating surface side showing the structure of the lock portion of the device, and Fig. 5 is a cross section of the coupling member shown in Fig. 1 above. It is a figure. 1 ... Door body part 3 ... Door inner handle 4 ... Door inner lock knob 5 ... Mounting bracket 5a ... Board 6 ... Door inner panel 7・ ・ ・ Hinge part 11 ・ ・ ・ Door inner handle connecting link 12 ・ ・ ・ ・ Door lock knob connecting link 16 ・ ・ ・ ・ Knob holder 17 ・ ・ ・ ・ ・ ・ Slide knob 18 ・ ・ ・ ・ ・ ・ Slide hole 19 ・ ・..First rotating lever 24..second rotating lever 25..lock rod 26..door lock device 30..lock base 31..fitting groove 32. .... Engaging piece (strike) 34 ... Set plate 38 ... First lever 39 ... Second fulcrum pin 40 ... Second lever 42 ... Third fulcrum Pin 43 ... 3rd lever 44 ... 4th fulcrum pin 45 ... 4th lever 60 ... binding member

Claims (1)

[Scope of utility model registration request] 1. A door for a vehicle that covers an opening of a vehicle body in an openable and closable manner, and a lock member that is attached to a rear end portion of the door and that engages with a striker provided at the corresponding opening of the vehicle body.
An inner handle provided on the front end side of the door and connected to the lock member via a first link rod, and a second handle provided on the front end side of the door and juxtaposed with the first link rod. A door lock device for a vehicle comprising an inner lock knob connected to the lock member via a link rod of the first link rod and the second link rod of the vehicle.
The link rods of the first link rod and the second link rods of the first link rod and the second link rod are bound by a binding member so that they can slide independently of each other in a normal state and operate integrally when deformed. When both of the link rods are deformed by a predetermined stroke amount, the lock member is preferentially locked by utilizing the stroke amount of the second link rod that connects the inner lock knob and the lock member. A vehicle door lock device characterized by: