JPH0239013Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to an improvement of an automobile door lock device that prevents the locking operation when the door is opened.

``Prior Art'' Some conventional automobile door lock devices have a so-called knob block mechanism that blocks the locking operation of the lock knob when the door is open, making keyless locking impossible.

However, in such conventional door lock devices, movement of the lock knob in the locking direction is restrained by engaging a knob lever, etc. connected to the lock knob via a connecting member with the open lever, etc. when the door is open. Due to its structure, if you accidentally lock the lock knob while the door is open, the connecting member that connects the lock knob and the lock device,
There is a problem in that an excessive load is applied to the knob lever, key lever, etc. in the lock device, and the connecting member, knob lever, etc. may be deformed.

``Purpose of the invention'' This invention was developed by focusing on these conventional problems, and has a structure that prevents the locking operation when opening the door, and absorbs the excessive load caused by incorrect operation of the lock knob when opening the door. The aim is to solve the above problems by doing so.

"Structure of the invention" In order to achieve the above object, the invention has an open lever that rotates together with the pole that locks the latch and has different stopping positions for the door opening position and the door closing position. A door lock device for an automobile that prevents a locking operation during a locking operation includes a knob lever that is reversible between a locked position and an unlocked position, is biased and held in the reversed position, and is connected to the open lever; and a knob lever that is connected to the open lever; and a connecting member that transmits the power to the knob lever so as to be engaged in the unlocking direction but relatively displaceable in the locking direction, and to reduce the biasing force of the knob lever in the unlocked position and the locked position. A spring that has a large biasing force and is capable of transmitting a normal operating force, and that deforms to absorb the displacement of the connecting member due to the locking operation of the locking knob when the knob lever becomes inoperable due to the open lever being prevented from being locked. The member is an automobile door lock device in which the knob lever and the connecting member are interposed so as to be engaged with each other while being separated from each other, and the door can be opened without applying an overload to the knob lever due to the locking operation of the lock knob when opening the door. It is possible to prevent the locking operation when the door is in the open state.

"Embodiments" Hereinafter, various embodiments of the present invention will be described based on the drawings.

1 to 9 show a first embodiment of the present invention, in which a body 10 of a door lock device 1 has a base plate 11 and an operating mechanism as shown in FIG. 1 on one side, and an operating mechanism on the other side. A meshing mechanism such as a latch L as shown in FIG. 3 is provided.

As shown in FIG. 3, a fork-shaped latch L and a pawl P are fixed to the other surface of the main body 10, and the latch L has a locking member that holds the pawl P in the open position when the door is open. a stop surface L1, a half-latch engaging portion L2 that is locked by the tip locking portion P1 of the pole P in the half-latched position, and a full-latch engaging portion L3 that is locked by the tip locking portion P1 in the full latch position; A U-shaped engagement portion L4 is formed that engages and disengages a striker S fixed to the vehicle body, and the latch L is biased in the lock release direction (counterclockwise) by a spring S1. In the released position, the full-latch engagement portion L3 is in contact with a stopper 12 fixed to the body main body 10.

As shown in FIG. 1, on the base plate 11 side, there is a direction in which a stopper engaging portion 22 that is pivotally supported on the body main body 10 together with a pole P and comes into contact with a stopper 13 formed on the base plate 11 by means of a spring 21 ( An open lever 2 biased in the counterclockwise direction is provided. The open lever 2
In the door open state, the end locking portion P1 of the pole P is locked by the locking surface L1 of the latch L, so the stopper engaging portion 22 is in the door open position (fourth position) away from the stopper 13. (position shown in the figure), and the tip locking part P1 is in the half-latch engaging part L2.
And in the closed state where the full latch engagement part L3 is locked, the stopper engagement part 22 is closed to the stopper 1.
3 is in the closed position (position shown in FIG. 5).

An outside lever 3 is pivotally supported on the base plate 11 and can be rotated clockwise by opening an outside handle (not shown) provided on the outer surface of the door. A sub-lever 4 is connected to the base plate 11 and is slidable in the vertical direction in conjunction with the rotation of the outside lever 3. When the outside lever 3 rotates clockwise, the sub-lever 4 locks the end locking portion P of the pole P in the closed door state.
1 is retracted from the full latch engagement portion L3 of the latch L.
an unlocked position in which the actuating protrusion 41 can be engaged with the bent part 23; and a locked position (the third It can be displaced to the position shown in Figure 1). Further, the sub-lever 4 is connected to the locking portion 42 by a spring 31 that biases the outside lever 3 counterclockwise.
is formed on the base plate 11.
It is urged to the position where it abuts (the position shown in FIG. 1).

Further, a key lever 5 is pivotally supported on the base plate 11 by a pivot shaft 54, which can swing between an unlocked position and a locked position by key operation. A pin 51 is fitted into an elongated hole 43 formed in the sub-lever 4 to connect it to the sub-lever 4, whereby the key lever 5 can move the sub-lever 4 to the locked position and the unlocked position by key operation. It is configured to allow In addition, the key lever 5
is a lock knob installed inside the vehicle (not shown)
The locking/unlocking operation can also be reversed between the locked position and the unlocked position via the knob lever 6 pivotally supported on the side plate 15 of the base plate 11.

The key lever 5 is provided with a turnover spring 52, and the turnover spring 52 biases the key lever 5 toward the unlocked position and the locked position, respectively, around the dead center to perform a turnover action. It is installed between the key lever 5 and the base plate 11.

As shown in FIG. 1, FIG. 4, and FIG. When the key lever 5 is in the lock position), the locking part 2 enters the locus of movement of the locked part 53 when the key lever 5 rotates from the unlocked position to the locked position, and prevents the key lever 5 from shifting to the locked position.
4 is formed, and when the open lever 2 is in the door closing position (the position shown in Fig. 5), the locking part 2
4 is retracted out of the movement locus of the locked portion 53.

The knob lever 6 is pivotally supported on the side plate 15 so as to be swingable between an unlocked position (the position shown in FIG. 6) and a locked position (the positions shown in FIGS. 2 and 9). is the leg 5 of the key lever 5.
A fork-like engaging portion 61 that engages with the 5 is formed.

As shown in FIGS. 6 to 9, between the knob lever 6 and the connecting member 7 that transmits the locking/unlocking operation of the lock knob (not shown) to the knob lever 6, there is a connection member 7 in the locking operation direction (see FIGS. A spring member 8 is interposed in the lower direction in the figure, which is capable of transmitting normal operating force from the connecting member 7 to the knob lever 6. That is, the connecting member 7 is loosely fitted into the engaging pin 62 fixed to the knob lever 6 at the elongated hole 71 formed in the connecting member 7, and the shaft portion 62a of the engaging pin 62 and the long hole 71 are loosely fitted. The upper end 71a of the hole 71 is connected to the knob lever 6 in a direction in which the lower end 1b of the elongated hole 71 abuts and engages the shaft 62a of the engagement pin 62, as shown in FIG. A spring member 8 is provided to bias the member 7 and the member 7 away from each other. Therefore, when the lock knob is operated to lock in the unlocked position shown in FIG. 6, the movement of the connecting member 7 in the locking direction (downward movement in the figure) is transmitted to the knob lever 6 via the spring member 8 9th
When the lock knob is operated to unlock in the locked position shown in the figure, the lower end 71b of the elongated hole 71 engages with the engagement pin 62.
Push the shaft portion 62a directly upward to displace the knob lever 6 to the unlocked position.

Further, the biasing force of the spring member 8 is larger than the turnover spring 52, and when the knob lever 6 becomes inoperable due to the open lever 2 preventing the locking operation when opening the door, the locking knob is connected by forceful locking operation. It is set to be less than the buckling load of the connecting member 7 so as to absorb the displacement of the member 7 and deform.

In the automobile door lock device 1 having the above configuration, when the door is open, the locking surface L1 of the latch L locks the end locking portion P1 of the pole P, as shown in FIGS. 3 and 4. , open lever 2
, the stopper engaging portion 22 is in the open door position away from the stopper 13.

When the lock knob is operated to lock the door in the open state shown in FIG. 4, the connecting member 7 is lowered from the position shown in FIG. The signal is transmitted to the knob lever 6. As a result, the knob lever 6 rotates counterclockwise from the unlocked position shown in FIG. 6, and in conjunction with the rotation of the knob lever 6, the key lever 5 changes from the unlocked position shown in FIG. 4 to the locked position. Rotate clockwise. In the door open state, as shown in FIG. 4, the locking part 24 of the open lever 2 has entered the locus of movement of the locked part 53 of the key lever 5, so the key lever 5 is displaced toward the locked position. At this time, the locked portion 53 is locked by the locking portion 24, and the displacement of the key lever 5 is prevented. Therefore, the knob lever 6 is also prevented from rotating counterclockwise at the position shown in FIG. And key lever 5
When the lock knob is further pushed down from the locked position, the downward movement of the connecting member 7 compresses the spring member 8 as shown in FIG.
is not transmitted.

When you release your hand from the lock knob in the state shown in FIG. 8, the connecting member 7 returns to its original position due to the biasing force of the spring member 8, and the knob lever 6 and key lever 5 also return to their original positions due to the biasing force of the turnover spring 52. Returns to the unlocked position shown in .

Next, in the door closed state, the pole P is rotated from the door open position shown in FIG. , stopper engagement part 2
2 is in the closed position (the position shown in FIG. 5) in contact with the stopper 13.

In the closed state, when the lock knob is locked, the locking portion 24 of the open lever 2 is retracted out of the movement trajectory of the locked portion 53, so the movement of the connecting member 7 in the locking direction is controlled by the spring member. 8 to the knob lever 6, and the knob lever 6
When the key lever 5 is moved to the locked position shown in the figure,
is also displaced to the locked position shown in FIG.

When the lock knob is operated to unlock from the locked state shown in FIG. 9, the lower end 71b of the long hole 71 of the connecting member 7
directly pushes up the shaft portion 62a of the engagement pin 62, returning the knob lever 6 and key lever 5 to the unlocked position.

Next, a second embodiment of the present invention will be described based on FIGS. 10 and 11.

In the second embodiment, the connecting member 70 includes a rod 75, an auxiliary lever 76 pivotally supported by a coupling pin 9 that pivotally supports the knob lever 60 on the side plate 15, and a connecting member 70 that swingably connects the rod 75 to the auxiliary lever 76. and a connecting holder 77. The knob lever 60 has a long hole 65, a spring hook 66,
A protrusion 67 is formed. A spring member 80 is disposed on the coupling pin 9, and the spring member 80
One end 80a is the spring hook part 66 of the knob lever 60.
The other end 80b is respectively latched to a spring hook 76a formed on the auxiliary lever 76, and the movement of the connecting member 70 in the locking direction can be transmitted to the knob lever 60 via the spring member 80. There is.
The protrusion 6 is formed so that the side 76b of the auxiliary lever 76 comes into contact with the protrusion 6 in order to return the knob lever 60 to the unlocked position when the lock knob is unlocked.

The other configurations of the second embodiment are the same as those of the first embodiment.

The action will be explained below.

When the lock knob is operated to lock the door in the closed state, the rod 75 rotates the auxiliary lever 76 counterclockwise, and the knob lever 60 is rotated via the spring member 80.
rotates counterclockwise together with the auxiliary lever 76 and is reversed to the locked position. At this time, the key lever 5 is also reversed to the locked position side in conjunction with the knob lever 60.

When the lock knob is operated to unlock in the locked state, the rod 75 rotates the auxiliary lever 76 clockwise, and the side portion 76b of the auxiliary lever 76 touches the protrusion 6.
By pushing 7 upward, the knob lever 60 is reversed together with the key lever 5 to the unlocked position.

Next, when the lock knob is operated to lock in the open state, the locking portion 24 of the open lever 2 locks the locked portion 53 of the key lever 5, thereby preventing the displacement of the key lever 5 and the knob lever 60. When you press the lock knob further down,
As the auxiliary lever 76 is rotated counterclockwise, the spring member 80 is expanded, and the downward force of the lock knob is not transmitted to the knob lever 60 and the key lever 5.

If you let go of the lock knob in this state,
The connecting member 70 is returned by the urging force of the spring member 80, and the knob lever 60 and the key lever 5 are also returned by the urging force of the turnover spring 52, so that the entire body returns to the unlocked position.

"Effects of the invention" According to the automobile door lock device according to the invention, there is a connection between the knob lever and the connecting member that transmits the locking/unlocking operation of the lock knob to the knob lever. A spring member is installed to enable transmission of operating force, so even if you accidentally lock the lock knob when the door is open, the operating force of the lock knob will be absorbed by the spring member, and the knob lever, key lever, etc. will be absorbed by the spring member. It doesn't get across.

For the same reason, even if the lock knob is accidentally pushed down in the locked state, the operating force of the lock knob is absorbed by the spring member and is not transmitted to the knob lever, etc., so that no strain is caused to the mechanism.

[Brief explanation of drawings]

1 to 9 show a first embodiment of the present invention, in which FIG. 1 is a plan view, FIG. 2 is a view in the direction of the arrow in FIG. 1, and FIG. 3 is a rear view of FIG. 1. Figures 4 and 5 are diagrams for explaining the operation, Figure 6 is a diagram for explaining the operation, Figure 7 is a view from the arrow in Figure 6, Figures 8 and 9 are diagrams for explaining the operation, Figures 10 and 11. The figures show a second embodiment of the present invention, with FIG. 10 being a plan view showing the main parts, and FIG. 11 being a perspective view of the main parts. 1... Door lock device, 2... Open lever, 5... Key lever, 6... Knob lever, 7...
...Connecting member, 8... Spring member, 24... Locking part,
53...Non-locking part, L...Latch, P...Pole, 60...Knob lever, 70...Connection member, 8
0...Spring member.

Claims (1)

[Claim for Utility Model Registration] For automobiles that has an open lever that rotates together with a pole that locks a latch and has different stopping positions in the open and closed positions, and that prevents the locking operation when opening the door. The door lock device includes a knob lever that is reversible between a locked position and an unlocked position, is biased and held in the reversed position, and is connected to the open lever; and a connecting member that transmits a locking/unlocking operation of the lock knob to the knob lever. are connected so as to be engaged in the unlocking direction but relatively displaceable in the locking direction, and have a biasing force greater than the biasing holding force of the knob lever in the unlocked position and the locked position, so that normal operation is possible. The knob lever and the connecting member are provided with a spring member that is capable of transmitting force and deforms to absorb displacement of the connecting member due to the locking operation of the lock knob when the knob lever becomes inoperable due to the open lever that is prevented from being locked. A door lock device for an automobile, which is interposed so as to be engaged with each other at a distance.