JPH0236745B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automobile door lock device in which a door lock operating mechanism and a door inside handle are connected via a cable.

2. Description of the Related Art Conventional automobile door lock devices include those shown in FIGS. 1 and 2, for example.

That is, inner panel A1 and outer panel A
In the case where the door lock B is fixedly installed inside the end surface A4 of the door A where the internal space A3 is formed by coupling the door lock B with the door A3, the conventional door lock B has an operating mechanism section B1 and a meshing mechanism section B2. A door inside handle C, which is an operating part and is arranged on an L-shaped base member B3, is connected to a locking/unlocking operating connection rod B4.
The door lock B is connected to the operating mechanism part B1 via the lock release operation connecting rod B5.The door lock B is assembled by first inserting the door lock B inside the door through the insertion hole A5 made in the flat part of the inner panel A1. Insert it into the space A3, then press the engagement mechanism part B2 against the end face A4 while avoiding the sash A6, align the striker system degroove B6 with the striker entrance port A7 of the inner panel A1, and then fix the door lock B. It is done by. A striker E that can be engaged with and detached from the door lock B is fixedly mounted on the vehicle body D along the entry direction B7 of the door lock B.

However, in such a conventional automobile door lock device, since the member that transmits motion between the door lock B and the inside handle C is the rigid connecting rod B5, the inside handle is locked regardless of whether the door lock 1 is locked or unlocked. In case C is provided with a child lock mechanism that cannot be unlocked and the state cannot be released as long as door A is closed, a complicated child lock mechanism is provided in the operating mechanism section B1 of door lock B. is common, and there is a problem that door lock B becomes complicated.

The present invention has been made in view of these conventional problems, and uses a cable as the member for transmitting motion, and changes the tension of this cable to produce a child lock effect.

The gist of the present invention to achieve such an object is to provide a door lock device for an automobile in which a door lock operating mechanism and a door inside handle are connected via a cable capable of transmitting only a tensile force, the door lock being a child lock. A lever is provided in the operating mechanism part of the door lock, and the child lock lever is provided with a lever,
The cable can be raised and lowered so that the tip thereof is displaced along the longitudinal direction of the cable, and the cable is engaged with the tip, and when the cable is raised, the cable slides into contact with the cable, so that the cable is tensioned so as to be able to transmit motion without loosening. The present invention relates to a door lock device for an automobile, characterized in that it is provided with a swinging arm portion that retreats so that the cable is relaxed so as to be unable to transmit motion when the door lock device is placed upside down.

When the child lock lever is upright,
Since the cable is taut, the pulling force that operates the inside door handle is transmitted and the door lock can be unlocked.

When the child lock lever is inverted,
The cable is so loose that it cannot transmit any movement, so even if you operate the inside door handle, the loosened part absorbs the displacement caused by the inside handle, and the door lock cannot be unlocked, making it impossible to open the door from inside the vehicle. It has a child lock effect that makes it impossible to do so.

Hereinafter, one embodiment of the present invention will be described based on the drawings. Note that the same parts as in the conventional example are given the same reference numerals and redundant explanations will be omitted.

Each of the figures following FIG. 3 shows an embodiment of the present invention.

As shown in Figures 3 to 9, the door lock 1
When assembled, the meshing mechanism part 2 and the operating mechanism part 3 are bent and connected in a substantially L-shape,
The engagement mechanism section 2 has an attachment reinforcing plate 23 attached to the surface of an engagement base box 22 that houses components such as a latch 21, and a striker E.
A striker engagement/disengagement groove 24 is formed for engaging and disengaging the lock from the latch 21. The meshing mechanism part 2 and the operating mechanism part 3 are mutually bendable via a thin hinge 11, and when assembled, are bent into a substantially L-shape by a substantially L-shaped back plate 12. The meshing base box 22 and reinforcing plate 23 of the meshing mechanism section 2 and the back plate 12
Through hole 2 for mounting bolt (not shown)
5, 25, . . . are bored, and the back plate 12 is formed with internally threaded portions 13, 13, . A lock release cable 42 and a lock/unlock cable 5 are fixed to the lock release operation member 4 and the lock/unlock operation member 5 by wrapping around the pulleys 41 and 51 via rotation transmission pulleys 41 and 51 that engage with each other, respectively.
2 are connected, and the lock release cable 42
is the inside handle C via the guide member 43.
The lock/unlock cable 52 is connected to the guide member 53
It is connected to the lock/unlock knob F via. As can be seen from the fact that these cables are wound around the pulleys 41 and 51, they are flexible and can transmit only tensile force.

On the other hand, a boss part A8 for attaching the door lock 1 is provided protruding from the end face A4 of the door A, and cables 42, 52 are arranged to connect the boss part A8 and the attachment part A9 of the inside handle C. A recessed groove A10 is formed in the panel surface A11 of the inner panel A1, and the recessed groove A is located near the corner portion A12 where the recessed groove A10 bends into the boss portion A8.
The bottom of 10 is an attachment part A13 that brings the operating mechanism part 3 of the door lock 1 into contact with the front side of the inner panel A1.
The attached part A13 has an opening along the top surface A14 of the boss part A8 in the direction of the panel surface A11,
It has a size just large enough to allow the engagement mechanism part 2 of the door lock 1 to be inserted therethrough, and this engagement mechanism part 2 is inserted from the outside into the top surface A14 of the boss portion A8 which is a part of the end surface A4.
A mounting insertion hole A15 is provided along which the door A can be inserted directly into the interior space A3 of the door A. The top surface A14 of the boss portion A8 has an insertion hole A corresponding to the mounting bolt insertion holes 25, 25, . . . of the door lock 1.
16, A16... are bored and a striker entry notch A1 corresponding to the striker engagement hole 24
7 is formed, and the insertion holes A16, A16, . . . are arranged in a highly rigid portion of the boss portion A8.

Further, a cover plate 7 is provided to cover the internal mechanism of the operating mechanism section 3 from being exposed after the door lock 1 is attached to the door A. The main surface portion 71 has a flange 72 and a rib 73 formed on the outer periphery of the main surface portion 71.
A door trim A18 is joined to the flange 72 as shown in FIG.
is erected and a striker entry notch 75 is formed, and locking holes 26, 26 are formed in the end face of the engaging base box 22 of the door lock 1.
Locking protrusions 76, 76 that fit into the child lock lever 6 are provided on the other end.
One insertion hole 79 is bored.

Also refer to Figures 10 to 13 to lock the door
In detail, first, regarding the operation mechanism section 3, a pivot projection 46 having an enlarged head 44 and a neck 45 serving as a central axis is erected on the operation base box 31, as shown in FIG. The center fitting hole 47 of the lock release operation member 4 is fitted into the pivot projection 46 and is pivotally supported, and the pivot projection 5 of a similar structure is fitted.
4 and 62 are installed upright on the operation base box 31,
The locking/unlocking operation member 5 is pivotally supported on the pivot projection 54,
A child lock lever 6 is pivotally supported on the pivot projection 62. A lock release engagement pin 48 is protruded from the back of the lock release operation member 4, and a lock release engagement pin 56 is provided from the back of the arm portion 55 of the lock/unlock operation member 5. The engagement pin 48 rotatably engages with the engagement hole 81 at one end,
An engagement pin 56 is inserted into the elongated hole 82 on the other end side of the sub-lever 8.
The sub-lever 8 is held by being slidably and rotatably engaged with each other, and an engagement piece 83 extending to the meshing mechanism section 2 is provided protruding from the other end side of the sub-lever 8 . Further, the operation base box 31 has circumferential holding grooves 49, 57 surrounding the pivot projections 46, 54.
is formed, and a spring 40 is held in the holding groove 49 for biasing the lock release operation member 4 to the non-release position.
A spring 58 is held in the holding groove 57 for biasing the locking/unlocking operation member 5 to the unlocked position, and a guide notch 33 for the locking/unlocking cable 52 and a guide notch 33 for the locking/unlocking cable 52 and the locking/unlocking cable 42 are held in the outer peripheral flange 32 of the operation base box 31. A guide notch 34 is formed. As shown in an enlarged view in FIG. 10, the lock release operation member 4 has a flange 50 formed on its outer periphery.
A fitting tube 8 that accommodates the pulley 41 therein is carved with a serration 59, which is an engaging portion formed around the central axis, following the center fitting hole 47.
4 is formed, and a cylindrical hole 85 is formed through the inner side of the pulley 41. A central shaft pin 86 is provided protruding from the pulley 41. Serration hole 87 which is an engaged part that can be engaged at the rotational position of
is formed. In addition, the lock release operation member 4
A projection 88 that engages with the spring 40 is provided on the back of the housing. Note that the engaging portion and the non-engaging portion are not limited to the combination of the serrations 59 and the serration holes 87, but may engage with each other at any rotational position by a polygonal shaft, spline, keyway, etc. It's good to have. The above structure is the same between the lock/unlock operation member 5 and the pulley 51. In addition, the child lock lever 6 has a swing arm portion 3 extending from a swing center axis, and a stepped portion 64 that abuts the cable 42 is formed on the back side of the tip thereof, and is attached to a turnover spring 65. The cable 42 can be raised and lowered so that the distal end thereof is displaced along the longitudinal direction of the cable 42 when the cable 42 is biased, and the cable 42 abuts and engages with the stepped portion 64 of the distal end as described above, thereby tensioning the cable 42. It is pivotably supported to be reversible between the state and the inverted state in which the cable 42 is relaxed and motion transmission is disabled, and there is a knob 6 for inverting the cable 42.
As shown in FIG. 4, when the door A is closed, the door A is placed in the shadow of the end D1 of the vehicle body D and cannot be operated.

Regarding the meshing mechanism section 2, a fork-shaped latch 21 is connected to a shaft pin 30 passed between a fitting hole 28 drilled in the meshing base box 22 and a fitting hole 29 drilled in the reinforcing plate 23. and is biased by a plate-shaped spring 27 stretched between the pin 20 and the latch 21 protruding from the meshing base box 22, so that the striker E enters the striker E from the striker engagement/disengagement groove 24. Also, on the opposite side of the striker engagement/removal groove 24, there is a pole member 37 extending between a fitting hole 35 drilled in the engagement base box 22 and a fitting hole 36 bored in the reinforcing plate 23. is pivotally supported, and the pole member 37
A locking portion 39 capable of locking the fork tip of the latch 21 projects in a radial direction from the central shaft 38 toward the latch 21 side, and an operated portion 60 is provided in a radial direction on the opposite side from the locking portion 39. The latch 21 is protruded and biased by a biasing spring 66 in a direction to lock the latch 21 . A slider 68 having a pushing part 67 that comes into contact with the operated part 60 of the pole member 37 is slidably supported by fitting the groove part 69 at the bottom into the sliding groove 10 of the meshing base box 22. The engagement piece 83 of the sub-lever 8 can be engaged with the groove 69. On the side of the striker engaging/disengaging groove 24, a wedge bumper 14 for preventing rattling of the striker E is biased by a biasing spring 15, and the fitting part 16 at the bottom slides into the fitting groove 17 of the meshing base box 22. It is movably fitted and supported, and a stopper portion 18 for receiving the striker E is formed at the rear end of the striker engagement/disengagement groove 24. An outside lever 90 is pivotably supported on the back plate 12 at the back of the meshing base box 22 via a shaft pin 93 that is biased by a biasing spring 91 and fitted into a fitting hole 92. The engaging end 94 of the outside lever 90 can engage with the engaging piece 83 of the sub-lever 8. A fitting protrusion 96 that fits into a fitting hole 95 of the back plate 12 projects from the back of the operation base box 31 .

As shown in FIG. 14, the striker E has a loop-shaped engagement leg core E2 erected on a base plate E1 fixed to the vehicle body D, a resin coating molded thereon, and an engagement leg portion E3 and a stopper portion E4. , side pressed portion E5, etc. are formed.

As shown in FIG. 11, the door lock 1 as described above is assembled by unfolding the thin-walled hinge 11 so that the engaging base box 22 and the operating base box 31 are oriented in the same direction, and the latch 21 is opened.
Alternatively, the lock release operation member 4 and the like are attached to the attachment site of each component from roughly the same mounting direction, and for the engagement mechanism section 2, the engagement base box 22 is sandwiched between the back plate 12 and the reinforcing plate 23, and various The parts are housed and fixed, and for the operating mechanism section 3, the operating base box 31 is bent relative to the engaging base box 22 around the thin hinge 11, and the fitting protrusion 96 is fitted into the fitting hole 95 of the bag 12. The door lock 1 is formed into a substantially L-shape.

To assemble the door lock 1, as shown in FIG.
The engagement mechanism part 2 of the door lock 1 is inserted into the internal space A3 from the outside through the mounting insertion hole A15 opened in the door lock 1.
is directly inserted, the bolt insertion hole 25 of the corresponding door lock 1 and the insertion hole A16 of the door A are aligned, the mounting bolt is inserted, and it is fastened to the female threaded portion 13 of the back plate 12 to fix the door lock 1.
Next, with the end of the cable 42 wound and fixed around the pulley 41 connected to the inside handle C, the serrations 59 of the lock release operation member 4 are fitted into the serration holes 84 of the pulley 41, and the pulley 41 is released as the lock release operation member. Attach to 4. At this time, the pulley 41 is appropriately rotated to apply appropriate tension to the cable 42, and the pulley 41 is attached at the rotated position. Similarly, after connecting the end of the cable 52 to the locking/unlocking knob F, the pulley 51 is attached to the locking/unlocking operation member 5. next,
Attach the cover plate 7 to the operating mechanism part 3 of the door lock 1.
While inserting the knob 61 of the child lock lever 6 so as to protrude to the outside from the insertion hole 79, engage the locking protrusion 76 with the base box 2.
2 into the locking hole 26 and fixed to the door A.

The operation of the door lock 1 will be explained below with reference to FIGS. 15 to 17.

5 and 16 show the unlocked state, in which the engaging piece 83 of the sub-lever 8 protrudes into the engaging mechanism section 2 and engages with the groove 69 of the slider 68 and the engaging end 94 of the outside lever 90. It is becoming possible. When the cable 52 is pulled by operating the knob F, the pulley 51 and the lock/unlock operating member 5 rotate clockwise in FIG.
6 rotates while being engaged with the elongated hole 82 of the sub-lever 8, the sub-lever 8 swings around the engagement pin 48 of the lock release operation member 4, and the engagement piece 83 is pulled from the engagement mechanism section 2 and the slider 68 is rotated. The groove 69 is in a locked state where it cannot be engaged. This state is shown in FIG. 12, although it is shown unfolded, and even if the lock release operation member 4 rotates and the sub-lever 8 moves, the movement is not transmitted to the slider 68 and the outside lever 90 I also miss the mark.

5 and 7 show the state in which the latch 21 is waiting for the entry of the striker E, and when the striker E enters the striker engagement groove 24 and presses the fork of the latch 21, the latch 21
is rotated clockwise in FIG. 7, and the locking portion 39 of the pawl member 37 locks the fork tip of the latch 21, restraining the engaging leg portion E3 and entering the locked state. When fully latched, the stopper part E4 of the striker E comes into contact with the stopper part 18 of the meshing mechanism part 2, and the wedge bumper 14 pushes the side pressed part E.
5 is pressed from the side, resulting in the state shown in Fig. 15.

As shown in Fig. 15, the striker E is restrained,
When the inside handle C is operated when the door lock 1 is in the unlocked state as shown in Fig. 16,
The cable 42 is pulled, the lock release operating member 4 and the pulley 41 are rotated clockwise in FIG.
8 is raised upward in FIG.
0 to rotate the pawl member 37 counterclockwise, the locking portion 39 is disengaged from the latch 21, releasing the restraint, and the striker E is unlocked.

In FIG. 16, the child lock lever 6 is upright and the child lock is released, but when the child lock lever 6 is pushed down, the turnover spring 65 is reversed and held in the inverted state.
In the state shown in the figure, the cable 42 is relaxed;
Even if the inside handle C is operated, the operation is not transmitted to the lock release operation member 4, and the door lock 1 is
cannot be brought into unlocked state. Door A
When the is closed, the knob 6 is closed, as shown in Figure 4.
1 is behind the end D1 of the car D and cannot be operated, and if the door is unlocked, operate the outside lever 90 using the outside handle (not shown) to release the lock and open the door A. However, a child lock condition occurs in which door A cannot be opened from inside the vehicle.

According to this embodiment, when assembling the door lock 1 to the door A, the engaging mechanism part 2 is linearly advanced from the outside of the door inner panel A1 to the attachment insertion hole A15 and inserted directly into the interior space A3. This makes the assembly work extremely easy, and the operation mechanism section 3
Since it is located on the front side of the inner panel A1, connection with other devices such as the inside handle C or adjustment at that time can be easily performed, and repairs can be made without removing the door lock 1. In addition, in the operation mechanism section 3, the lock release operation member 4 and the pulley 41 are connected to the serration 5.
9 and the serration hole 87, the amount of winding of the cable 42 can be changed by rotating the pulley 41, absorbing installation errors and adapting to dimensional differences due to differences in vehicle model specifications, etc. Can be done. It goes without saying that there may also be an embodiment in which the door inside handle C is provided with such a structure. Furthermore, when assembling the door lock 1 itself, the engagement mechanism section 2 and the operating mechanism section 3 are connected to the hinge 11.
Since the components can be connected through the connectors and unfolded into a planar state facing substantially the same direction during assembly, the component parts can be attached from the same direction, making assembly work more efficient and automation easier. Note that the various parts attached to the meshing mechanism section 2 and the operating mechanism section 3 are merely arranged as an example, and the parts attached to the meshing mechanism section 2 may be arranged in the operating mechanism section 3 in other embodiments. Needless to say, it is sometimes attached to. Furthermore, cable 4
Since the child lock mechanism is formed by the child lock lever 6 that changes the tension of the door lock 2, the structure is simplified and the door lock 1 becomes rational.

According to the automobile door lock device according to the present invention, the child lock action is achieved by changing the tension of the cable connecting the operating mechanism section of the door lock and the inside handle, and the child lock lever engages with the cable to raise and lower the door lock. Since the structure is simple enough to do this, it is possible to obtain a door lock device having a child lock mechanism that is simple and reliable in operation.

[Brief explanation of drawings]

Figures 1 and 2 show a conventional example, Figure 1 is an exploded perspective view showing an overview of the door and door lock, Figure 2 is a horizontal sectional view of the door lock installed, and Figures 3 to 17 are the main parts. 3 is an exploded perspective view showing an overview of the door and the door lock, FIG. 4 is a horizontal sectional view of the door lock installed, FIG. 5 is an exploded perspective view showing the door lock installed, and FIG. Figure 6 is a sectional view of Figure 5, Figure 7 is a front view of the door lock, Figure 8 is a plan view of the door lock, Figure 9 is a rear view of the door lock, and Figure 10 is a partially cutaway illustration of the operation. FIG. 11 is an exploded perspective view of the door lock, FIG. 12 is a front view of the door lock in an expanded state, and FIG. 13 is a plan view of the door lock.
Fig. 14 is a perspective view of the striker, Fig. 15 is a front view of the door lock engaged with the striker, Fig. 16 is a front view showing the connection relationship between the door lock and the door inside handle and knob, with the child lock released and Fig. 17 The figure also shows the child lock condition. A...door, A1...inner panel, A2...
Outer panel, A15...Mounting insertion hole, C...Inside handle, D...Vehicle body, E...Striker, 1...Door lock, 2...Matching mechanism part, 3...
...Operation mechanism section, 4...Lock release operation member, 5...
... Locking/unlocking operation member, 6... Child lock lever, 42... Cable, 63... Swinging arm section.

Claims (1)

[Scope of Claims] 1. An automobile door lock device in which a door lock operating mechanism and a door inside handle are connected via a cable capable of transmitting only tensile force, wherein a child lock lever is connected to the door lock operating mechanism. provided, on the child lock lever,
The cable can be raised and lowered so that the tip thereof is displaced along the longitudinal direction of the cable, and the cable is engaged with the tip, and when the cable is raised, the cable slides into contact with the cable, so that the cable is tensioned so as to be able to transmit motion without loosening. 1. A door lock device for an automobile, characterized in that a swinging arm part is provided for retracting the cable so as to relax the cable so that the cable cannot be transmitted when the door lock is placed upside down.