JP2005035453A - Door lock device for vehicle door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door lock device for a vehicle door without a need for wiring of a cable in a roundabout state. <P>SOLUTION: A cable 5 as "an operating force transmission member" provided between a handle 2 and a door lock 4 transmits an operating force in the handle 2 pulling direction to the release lever 14 of the door lock 4 as a rotating force around a shaft to operate and release the door lock 4. By this constitution, there is no need for wiring of the cable 5 in a roundabout state, which is advantageous in terms of the wiring workability of the cable 5 to a door 1 and cost. A structure converting the operating force of the handle 2 into the rotating force of the cable 5, and a structure converting the rotating force of the cable 5 into the operating force of the release lever 14 of the door lock 4 are formed by a rack and pinion. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a door lock device for a vehicle door that can be released by a handle operation.

  A handle that can be pulled out to the outside of the vehicle is provided on the surface of the door, and a door lock is provided on the opening end surface of the door. When the door is closed, the door lock is engaged with the striker on the vehicle body side to maintain the door closed. A flexible cable protected by an outer tube is routed between the door lock release lever and the handle. Then, the operating force of the handle is transmitted as a pulling force to the door lock release lever, and the door lock is released by tilting the release lever. After the door lock is released, the original state is restored by the urging force of the handle and the release lever.

The cable for transmitting the operating force of the handle to the door lock is routed in a detour state with a sufficient margin than the actual distance between the handle and the door lock. This is to prevent the cable from pulling the release lever of the door lock even if the door structure is deformed due to a vehicle collision or the like and the relative distance between the handle and the door lock is increased. This prevents the door from being opened at the time of a collision (see, for example, Patent Document 1).
JP 2002-242508 A

  However, according to such a conventional technique, it is necessary to route a long cable between the handle and the door lock in a detoured state, and the routing work is troublesome. In addition, the cable routed in the detour state may interfere with the door glass that moves up and down inside the door.Therefore, it is necessary to fix the detoured cable with a clip on the door panel so that it does not swing inside the door. It is necessary, and it is necessary to wind the outer tube that protects the cable with a sponge so that there is no unpleasant interference sound even if it interferes with the door glass, so it has increased work man-hours and costs .

  The present invention has been made paying attention to such a conventional technique, and provides a door lock device for a vehicle door that does not require a cable to be routed in a detour state.

  According to the first aspect of the present invention, a handle that can be pulled out to the outside of the vehicle is provided on the surface of the door, a door lock is provided on the opening end surface of the door, the handle and the door lock are connected to each other by an operation force transmission member inside the door, The operation force transmitting member transmits the operation force of the handle as a rotational force around the shaft to the door lock, thereby enabling the door lock to be released.

  According to a second aspect of the present invention, the first operating force converting means for converting the operating force into the rotational force around the shaft is provided on the handle, and the second operation for converting the rotational force around the shaft into the operating force of the door lock is provided at the door lock. Force converting means is provided, and the first operating force converting means and the second operating force converting means are connected by a cable or a link as an operating force transmitting member capable of transmitting a rotational force around the axis.

  The invention according to claim 3 is characterized in that the first operating force converting means and the second operating force converting means are each formed by a rack and a pinion, and both ends of the operating force transmitting member are connected to each pinion. .

  According to a fourth aspect of the present invention, the length of at least one of the pinions in the first operating force converting means and the second operating force converting means is opposite to the rack connected to the operating force transmitting member. Even if the pinion is extended and displaced to the operating force transmission member side, the engagement state with the rack is maintained.

  According to the first aspect of the present invention, the operation force transmission member provided between the handle and the door lock transmits the operation force of the handle to the door lock as a rotational force around the shaft, and releases the door lock. Therefore, there is no need to bypass the operating force transmission member, which is advantageous in terms of cable routing workability and cost.

  According to the second aspect of the present invention, since the first operating force converting means is provided on the handle and the second operating force converting means is provided on the door lock, the operating force transmitting member arranged between them is twisted around the axis. Any cable or link that does not deform may be used, and the structure of the operating force transmission member itself is simple and can be easily routed inside the door.

  According to the third aspect of the present invention, since the first operating force converting means and the second operating force converting means are formed by the rack and the pinion, the structure is simple and it is easy to apply to the handle and the door lock.

  According to the fourth aspect of the present invention, since at least one pinion in the first operating force converting means and the second operating force converting means is extended to the opposite side to the direction connecting the operating force transmitting member, the vehicle collision Sometimes the relative distance between the handle and the door lock is increased, and even if the operating force transmission member is pulled, the engagement state between the pinion and the rack is maintained, and the door lock is released by operating the handle after the collision. You can open the door.

  For the purpose of providing a door lock device for a vehicle door that does not require the cable to be routed in a detoured state, the handle and the door lock are connected by an operation force transmission member inside the door, and the handle force transmission member This was realized by transmitting the operating force to the door lock as a rotational force around the axis, enabling the door lock to be released.

  FIGS. 1-8 is one Example of this invention, This Example shows the door lock apparatus in the door 1 of the rear side of a motor vehicle. FIG. 1 is a view of the door 1 as seen from the outside of the vehicle, and mainly shows the internal structure. A handle 2 is provided on the surface side of the door 1.

  The rear end of the door 1 is an opening end surface 3 that faces the door opening of the vehicle body. A door lock 4 is attached to the opening end surface 3 from the inside of the door 1. The handle 2 and the door lock 4 are connected by a flexible cable 5 as an “operation force transmission member”. The cable 5 is provided so as to be connected at a substantially shortest distance, not in a detoured state.

  Inside the door 1 is housed a door glass 7 supported by a pair of front and rear rails 6 so as to be movable up and down. Since the door glass 7 and the cable 5 are different in position in the width direction of the door 1, they do not interfere with each other. Since the cable 5 is not in a detour state, the cable 5 does not swing inside the door 1 and does not interfere with the door glass 7.

  The handle 2 is supported with respect to a base 9 fixed to the outer panel 8 so that the handle 2 can be pulled out and rotated about the front end. As shown in FIG. 4, an arm 10 extending to the inside of the door 1 is formed at the rear end of the handle 2, and a first rack R <b> 1 is formed on the rear surface of the arm 10. The base 9 supports a first pinion P1 that can be engaged with the first rack R1 of the arm 10. Therefore, the first pinion P1 engages with the first rack R1 and rotates about the axis when the handle 2 is pulled out to the outside of the vehicle. The first operating force conversion means T1 is formed by the first rack R1 and the first pinion P1. The steering wheel 2 is given a biasing force that returns to the original position after the pulling operation to the outside of the vehicle. Since the first operating force conversion means T1 has a rack and pinion structure, the first operating force conversion means T1 has a small space and can be easily applied to the handle 2.

  The upper end of the cable 5 is connected to the first pinion P1 of the first operating force conversion means T1. The cable 5 has a flexible structure capable of transmitting rotational power without twisting and deforming around an axis, and is commonly referred to as a rotary cable or a power cable. The cable 5 is protected by a resin outer tube 11 for protection. The cable 5 only transmits a rotational force, and the cable 5 is not tensioned in the pulling direction. Therefore, there is no need to make a detour, and the wiring work inside the door 1 is easy.

  On the other hand, as shown in FIG. 6, the door lock 4 is provided with a plate 13 slidably supported by three pins 12. A second rack R <b> 2 is formed on the surface of the plate 13. Yes. The plate 13 can push the release lever 14 of the door lock 4 and tilt the release lever 14 to release the door lock 4. A biasing force that pushes back the plate 13 after the release operation is also applied to the release lever 14.

  The door lock 4 supports a second pinion P2 that engages with the second rack R2. The lower end of the cable 5 is connected to the upper end of the second pinion P2. The length of the second pinion P2 is extended downward by D with respect to the second rack R2. The second pinion P <b> 2 is capable of rotating around the axis by the shaft 15 being pivotally supported by the case 16 of the door lock 4, and the second pinion P <b> 2 extends over a length range in which the shaft 15 engages the case 16. Even if P2 is displaced upward, the engaged state between the second pinion P2 and the second rack R2 is maintained. This structure is the same for the upper first pinion P1 and is maintained in a state where it is axially supported over the length range of the shaft 17 at the upper end of the first pinion P1. The second operating force conversion means T2 is also a small space due to the rack and pinion structure, and is easy to apply to the door lock 4.

  Next, the operation of this embodiment will be described. When the handle 2 is held by hand and pulled outward, the first pinion P1 engaged with the first rack R1 rotates about its axis. And the rotational force is transmitted to the 2nd pinion P2 via the cable 5, and the 2nd pinion P2 rotates. When the second pinion P2 rotates, the plate 13 having the second rack R2 engaged with the second pinion P2 slides, and the release lever 14 is tilted to release the door lock 4. After the door lock 4 is released, the original state is restored by the urging forces applied to the handle 2 and the release lever 14, respectively.

  When the vehicle collides, the deformation of the door 1 increases the relative distance between the handle 2 and the door lock 4, the outer tube 11 holding both ends of the cable 5 is removed, and both ends of the cable 5 are first. Even if the pinion P1 and the second pinion P2 are pulled out together, the first pinion P1 and the second pinion P2 are extended in the opposite direction to the pulling direction. As long as it is pivotally supported by 16, the engagement state between the two is maintained. Therefore, by operating the handle 2 after the collision, the door lock 4 can be released and the door 1 can be opened.

  The operating force transmission member provided between the handle and the door lock transmits the operating force of the handle to the door lock as a rotational force around the shaft, and the door lock is released, so it is necessary to bypass the operating force transmission member This is advantageous in terms of cable routing workability and cost. It can be applied not only to side doors of automobiles but also to sliding doors and back doors of one-box vehicles. In the above embodiment, the flexible cable 5 is taken as an example of the “operation force transmission member”. However, a flexible cable 5 such as a link or the like may be used, but it can transmit a rotational force with certainty.

The figure which looked at the internal structure of the door in which the door lock apparatus which concerns on one Example of this invention was installed from the vehicle outer side. The side view which shows a handle | steering-wheel. The side view which shows a cable. Sectional drawing which follows the SA-SA line shown by the arrow in FIG. . Sectional drawing equivalent to FIG. 4 which shows the state which operated the handle | steering-wheel. The figure which shows the internal structure of a door lock. The figure equivalent to FIG. 6 which shows the cancellation | release state of a door lock. Sectional drawing which follows the arrow SB-SB line in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door 2 Handle 3 Open end face 4 Door lock 5 Cable (operation force transmission member)
14 Release lever T1 First operating force converting means T2 Second operating force converting means P1 First pinion P2 Second pinion R1 First rack R2 Second rack D Rack length extension

Claims (4)

  A handle that can be pulled out to the outside of the vehicle is provided on the surface of the door, a door lock is provided on the opening end surface of the door, the handle and the door lock are connected to each other by an operation force transmission member inside the door, and the handle is operated by the operation force transmission member. A door lock device for a vehicle door, wherein force is transmitted to a door lock as a rotational force around an axis so that the door lock can be released.   The door lock device for a vehicle door according to claim 1, wherein the handle is provided with first operating force conversion means for converting an operating force into a rotational force around the axis, and the rotational force around the axis is applied to the door lock. A second operating force converting means for converting to an operating force is provided, and the first operating force converting means and the second operating force converting means are connected by a cable or a link as an operating force transmitting member capable of transmitting a rotational force around the axis. A door lock device for a vehicle door, characterized in that   3. The door lock device for a vehicle door according to claim 2, wherein the first operating force converting means and the second operating force converting means are each formed by a rack and a pinion, and both ends of the operating force transmitting member are connected to each pinion. What is claimed is: 1. A door lock device for a vehicle door.   4. The door lock device for a vehicle door according to claim 3, wherein the length of at least one pinion in the first operating force converting means and the second operating force converting means is such that the operating force transmitting member is connected to the rack. A door lock device for a vehicle door, wherein the door lock device is extended to a side opposite to the one where the pinion is displaced and the engagement state with the rack is maintained even if the pinion is displaced toward the operation force transmission member.

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