JP3670538B2 - Door lock device for automobile - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automotive door lock device that includes a knob lever that is moved in one direction and the other direction by an on operation and an off operation of a lock knob, and in which unlocking is impossible or possible depending on the moving direction of the knob lever. It is.
[0002]
[Prior art]
Generally, the lock knob in this type of door lock device is provided in an inside handle device that is assembled inside the door of an automobile, and is connected to the lock device main body side via a connecting means such as a wire, cable, or link mechanism. It is connected to the knob lever. The knob lever is moved in one direction and the other direction when the lock knob is turned on and off. Unlocking is impossible when the knob lever is moved in one direction, and unlocked when the knob lever is moved in the other direction. Is possible.
[0003]
In such a door lock device, conventionally, the movable range of the knob lever on the lock device main body side is regulated by a stopper, so that the movable range of the lock knob on the inside handle device side is indirectly increased through a connecting means such as a wire. The configuration was limited. That is, when the knob lever hits the stopper on the lock device main body side, the lock knob on the inside handle device side is indirectly positioned at the on / off operation position.
[0004]
[Problems to be solved by the invention]
By the way, when such a door lock device is mounted on an automobile, the knob lever on the lock device main body side and the inside are not suitable for the variation of the assembly position and the size of each component such as the door lock device and the link mechanism. There is a possibility that the connection relationship with the lock knob on the handle device side is shifted. If the connection relationship between them deviates, the on / off position of the lock knob deviates from the normal position.
[0005]
For this reason, the conventional door lock device needs to include an adjusting means for adjusting the on / off position of the lock knob to a normal position. The adjusting means is incorporated in, for example, a link mechanism that connects the knob lever and the lock knob, and is configured to adjust the connecting position of the components. However, such adjustment means must be adjusted according to the variation in the assembly position of the door lock device and the variation in the dimensions of each component such as the door lock device and the link mechanism. As a result, the workability of assembling the door lock device may be impaired.
[0006]
An object of the present invention is to provide an automotive door lock device that can always regulate the on / off position of a knob lever to a normal position without requiring any special adjustment.
[0007]
[Means for Solving the Problems]
The automobile door lock device of the present invention includes a knob lever that is moved in one direction and the other direction in conjunction with an on operation in one direction and an off operation in the other direction of the lock knob, and the knob lever is moved in one direction. In the automotive door lock device that can be unlocked when the knob lever is moved in the other direction, the range of movement of the knob lever can be reduced by restricting the operation range of the lock knob. Limiting means for limiting to a predetermined movement limiting range, and when the knob lever is within the moving range in one direction from a predetermined neutral position, the knob lever is biased in the one direction, and the knob lever is moved from the neutral position. and a spring biasing the knob lever to the other direction when in the moving range of the other, the limiting means, When the lock knob is turned on in the one direction, a first stopper portion that contacts the lock knob and positions the lock knob at a predetermined on position; and when the lock knob is turned off in the other direction, A second stopper portion that contacts the lock knob and restricts the lock knob to a predetermined off position, and the movement limit range of the knob lever needs to correspond to the movement range of the lock knob restricted by the restriction means It includes a movement range , a margin movement range in one direction deviating from the necessary movement range in the one direction, and a margin movement range in other directions deviating from the necessary movement range in the other direction .
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0009]
Reference numeral 10 denotes a lock device main body attached to the door of the automobile, and 20 denotes an inside handle device attached to the inside of the automobile door.
[0010]
The lock device main body 10 is a general lock mechanism that locks the door in a closed state by a latch plate that meshes with a striker on the vehicle body and rotates, and a locking plate that can prevent the latch plate from rotating. Is configured. Reference numeral 11 denotes a lock release lever that can rotate in the directions of arrows A1 and A2 about the axis O1. One end portion 11A of the unlocking lever 11 is connected to a base end portion 21A (see FIG. 2) of the handle 21 in the inside handle device 20 via a wire or a rod (not shown). The handle 21 is pivotally supported by the body 22 of the inside handle device 20 so as to be rotatable in the directions of arrows B1 and B2 about the axis O2, and is urged by the spring 23 in the direction of arrow B2. When the handle 21 is pulled in the arrow B1 direction, the lock release lever 11 is rotated in the arrow A1 direction. When the lock release lever 11 is rotated in the direction of the arrow A1, the locking plate is rotated in a direction for releasing the rotation prevention of the latch plate, and the door is unlocked.
[0011]
Reference numeral 12 denotes a knob lever that is rotatable about the axis O3 in the directions of arrows C1 and C2. A spring 14 (see FIG. 1) is attached between the knob lever 12 and the base plate 13 of the lock device body 10. ing. The spring 14 biases the knob lever 12 in the direction of the arrow C1 or C2 with the intermediate position of the rotation range of the knob lever 12 as the reverse position of the biasing direction. That is, the spring 14 biases the knob lever 12 in the direction of the arrow C1 when the knob lever 12 is within the rotation range of the arrow C1 direction from the middle position of the rotation range, while the knob lever 12 is in the middle of the rotation range. When within the range of rotation in the direction of arrow C2 from the position, the knob lever 12 is urged in the direction of arrow C2. Therefore, the knob lever 12 is selectively biased in the direction of the arrow C1 or C2 with the middle position of the rotation range as a boundary.
[0012]
One end 15 </ b> A of the connect lever 15 is pin-coupled to the end 12 </ b> A of the knob lever 12. The connect lever 15 is interlocked with the rotation of the knob lever 12 in the directions of arrows C1 and C2, and the other end 15B is skewed as shown by a solid line and a two-dot chain line in FIG. , D2 direction. 13A and 13B are stopper portions formed on the base plate 13, and regulate the maximum movement range SB of the other end portion 15B of the connect lever 15 in the directions of arrows D1 and D2. RB in FIG. 3 is the maximum rotation range of the knob lever 12 corresponding to the maximum movement range SB.
[0013]
The other end 15B of the connect lever 15 is selectively moved in the direction of the arrow D1 or D2, thereby making it impossible or impossible to release the lock by the lock release lever 11. That is, when the other end 15B of the connect lever 15 moves in the direction of arrow D1, even if the lock release lever 11 is rotated in the direction of arrow A1, the locking plate is not rotated and the door lock cannot be released. It becomes. On the other hand, when the other end 15B of the connect lever 15 moves in the direction of arrow D2, the locking plate is rotated by the rotation of the lock release lever 11 in the direction of arrow A1, and the door lock can be released. The movement range SA included in the maximum movement range SB is a movement restriction range that is restricted by restriction from the inside handle device 20 side as will be described later. The connection plate 15 exhibits its function sufficiently when the other end 15B moves within the movement restriction range SA. That is, the movement restriction range SA includes a necessary movement range required for the connect plate 15 to be unable or impossible to unlock. In addition, within the maximum movement range SB, the ranges SC1 and SC2 outside the movement restriction range SA are set as the margin movement range of the connect plate 15. RA in FIG. 3 is a rotation restriction range of the knob lever 12 corresponding to the movement restriction range SA.
[0014]
The end 12B of the knob lever 12 is connected to the base end 24A (see FIG. 2) of the lock knob 24 in the inside handle device 20 via the first rod 16, the link 17, and the second rod 18. The lock knob 24 is pivotally supported so as to be rotatable about the same axis O <b> 2 as the handle 21. The link 17 is pivotally supported at a fixed position inside the door so as to be rotatable about the axis O <b> 4, and transmits the rotation of the lock knob 24 to the knob lever 12. That is, when the lock knob 24 is turned to the ON position in the arrow E1 direction as shown by the solid line in FIG. 2, the movement of the second rod 18 in the arrow F1 direction is converted into the movement of the first rod 16 in the arrow G1 direction. Then, the knob lever 12 is rotated in the direction of the arrow C1. On the other hand, when the lock knob 24 is turned to the OFF position in the direction of arrow E2 as indicated by a two-dot chain line in FIG. 2, the movement of the second rod 18 in the direction of arrow F2 is the movement of the first rod 16 in the direction of arrow G2. The knob lever 12 is rotated in the direction of arrow C2.
[0015]
The body 22 of the inside handle device 20 is provided with first and second stopper portions 22A and 22B (restricting means) for restricting the rotation range of the lock knob 24. The first stopper portion 22A is in contact with the piece portion 24B of the lock knob 24, thereby restricting the rotation limit position of the lock knob 24 in the arrow E1 direction, and the second stopper portion 22B is connected to the end portion 24A of the lock knob 24. By contacting, the rotation limit position of the lock knob 24 in the arrow E2 direction is regulated. The movement amount of the second rod 18 is limited to LA as shown in FIG. 2 according to the rotation range of the lock knob 24 thus restricted. The movement amount LA corresponds to the rotation restriction range RA of the knob lever 12 and the movement restriction range SA of the other end 15B of the connect lever 15.
[0016]
Next, the operation will be described.
[0017]
The maximum rotation range RB of the knob lever 12 is limited by the connect lever 15 and the stopper portions 13A and 13B on the lock device body 10 side. Further, the rotation limit range RA of the knob lever 12 is limited within the maximum rotation range RB by the lock knob 24 and the stopper portions 22A and 22B on the inside handle device 20 side. Therefore, the lock knob 24 is always positioned at a regular on position or off position regulated by the stopper portions 22A and 22B, and an adjustment mechanism for adjusting the on position and the off position to a regular position is provided. It becomes unnecessary.
[0018]
Further, the marginal movement ranges SC1 and SC2 are links of the link mechanism constituted by variations in the assembly position of the lock device main body 10 and the inside handle device 20, variations in the dimensions of those components, rods 16, 18 and links 17, and the like. Absorbs various variations such as dimensional variations. Therefore, the lock knob 24 can always be positioned in the normal on position or off position without being affected by such various variations. Further, without being affected by such various variations, the connection plate 15 is moved over the required amount of movement by turning the lock knob 24 on and off, and the function, that is, the lock by the lock release lever 11 is moved. The function that makes the release impossible or possible can be surely exhibited.
[0019]
(Other embodiments)
The knob lever 12 and the lock knob 23 may be connected by means such as a cable, and the connecting means is not limited at all.
[0020]
【The invention's effect】
As described above, the present invention restricts the operation range of the lock knob, thereby restricting the movable range of the knob lever connected to the lock knob, so that the lock knob is always positioned at the normal on position or off position. Can do. As a result, an adjustment mechanism for adjusting the on position and the off position of the lock knob to the proper positions becomes unnecessary, and the workability of assembling the door lock device can be improved as much as the adjustment is unnecessary.
[0021]
Further, by incorporating the lock knob into the inside handle device and connecting the lock knob and the knob lever with a flexible wire or cable, the degree of freedom in setting the positional relationship between the lock knob and the knob lever can be increased.
[Brief description of the drawings]
FIG. 1 is a schematic side view for explaining an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the inside handle device in FIG.
FIG. 3 is an enlarged view of a main part of the door lock device main body in FIG. 1;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Lock apparatus main body 11 Lock release lever 12 Knob lever 13 Base plate 13A, 13B Stopper part 14 Spring 15 Connect lever 16, 18 Rod 17 Link 20 Inside handle apparatus 21 Handle 22 Body 22A, 22B Stopper part (limitation means)
23 Spring 24 Lock knob

Claims (2)

A knob lever that is moved in one direction and in the other direction in conjunction with an on operation in one direction and an off operation in the other direction, and the lock lever cannot be unlocked when the knob lever is moved in one direction; and In the automotive door lock device that can be unlocked when the knob lever is moved in the other direction,
Limiting means for limiting the movement range of the knob lever to a predetermined movement restriction range by restricting the operation range of the lock knob ;
The knob lever is urged in the one direction when the knob lever is within the range of movement in one direction from a predetermined neutral position, and the knob lever is in the range of movement of the other side from the neutral position. A spring for biasing the other direction,
With
The limiting means includes a first stopper portion that contacts the lock knob when the lock knob is turned on in the one direction and positions the lock knob at a predetermined on position, and the lock knob is turned off in the other direction. A second stopper portion that contacts the lock knob and restricts the lock knob to a predetermined off position when
The movement limit range of the knob lever includes a necessary movement range corresponding to the movement range of the lock knob restricted by the restriction means, a margin movement range in one direction deviating from the necessary movement range in the one direction, and the necessary movement. And a marginal movement range in the other direction deviating from the range in the other direction . The lock knob is incorporated in an inside handle device that is attached to the inside of a car door,
The automobile door lock device according to claim 1, wherein the lock knob and the knob lever are connected via a wire or a cable.

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