JPH03147991A - Door locking device for automobile - Google Patents

Abstract

PURPOSE:To open a door with the manipulation of only an inside handle in a locking condition, by unfixing the inside handle from a locking lever in the middle of pulling process of the inside handle. CONSTITUTION:An inside handle is unfixed from a locking lever 24 in the middle of pulling precess of the inside handle. And when the inside handle is pulled in a locked condition, the locking lever 24 is turned from a locked position to an unlocking position. And the locking lever 24 can be turned with the manipulation of a lock knob from the unlocked position to the locked position. In this way, the door can be opened only by the inside handle in the locked condition and turned to the unlocked condition from the locked condition.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a vehicle door lock device, and in particular to a vehicle equipped with a so-called keyless lock system that locks the door without using a key from outside the vehicle. The present invention relates to a door lock device for use in a vehicle.

(Prior art) Conventionally, in this type of keyless lock system, if the door opening handle is pulled, the lock knob can be operated to rotate the locking lever to the locked position, and the door cannot be opened in this state. It is known that the door is locked when it is closed.

(Problem to be Solved by the Invention) By the way, in a device equipped with a keyless lock system as described above, the door can be opened by simply pulling the inside handle without unlocking the lock knob even in the locked state, and the door can be opened even in the locked state by simply pulling the inside handle. In order to unlock from
When the inside handle is pulled in the locked state, the mouth and king lever will rotate from the locked position to the unlocked position.Secondly, when the inside handle is pulled, the locking knob must be operated to unlock the locking lever. The above-mentioned two requirements are necessary: the locking position can be rotated from the locking position to the locking position. In order to satisfy these two requirements, the inside handle and the locking lever must be disengaged while the inside handle is being pulled.

(Means for Solving the Problems) An object of the present invention is to provide an optimal structure for a vehicle door rotor device as described above. In a vehicle door lock device where the door cannot be opened even when the door is opened, but it can be opened by operating the inside handle, the open lever that displaces the ratchet in the door opening direction and the inside lever that connects to the inside handle always work together. The out lever connected to the outside handle is disengaged from the open lever when the mouth and king levers are in the locked position, and engaged with the open lever when the mouth and king levers are in the unlocked position. At the same time, when the inside handle is pulled in the locked state, the inside lever rotates the open lever in the direction of opening the door and flips the locking lever from the locked position to the unlocked position, and the inside lever and locking lever are It is designed to be non-cooperative.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

1 is a side view of FIG. 2, FIG. 2 is a rear view showing the door closed and locked states in the vehicle door lock device according to the present invention, and FIG. 3 is a cross-sectional view of FIG. Figure 4 is a front view showing the door closed and locked, Figures 5 to 7 are operation diagrams when operating the inside handle, Figure 8 is a rear view showing the door open and unlocked, and Figure 9 is the door open. Fig. 10 is a rear view showing a state in which the link is swung by the open lever in the door open state, and Fig. 11 is a rear view showing the link swung by the out lever in the door open state.
The figure is a front view showing the door in an open and unlocked state.

As shown in Fig. 4, a striker 2 fixed to a pillar on the vehicle body side is inserted into the front side of the synthetic resin body l of the door lock body incorporated into the door side of the vehicle, approximately in the center thereof. An approach path 3 and a recess 4 are formed,
Inside the recess 4, there is a latch 5 that engages with the striker 2 and rotates in the door closing direction (counterclockwise), and an engagement step (a half-engagement section to be described later) provided on the outer peripheral surface of the latch 5. A ratchet 8 that engages with the stepped portion 6 or the fully engaged stepped portion 7 to hold the latch 5 in the closed door position is disposed across the entrance path 3, respectively.

The latch 5 is rotatably supported by a shaft 9. A bottle IO is provided protruding from the back surface of the launch 5, and the bottle IO is slidably arranged in an arcuate groove 11 formed in the body 1. A spring 12 is held in a compressed state between one end surface of the arcuate groove 11 and the bottle 10, so that the latch 5 is always biased in the door opening direction (clockwise). This latch 5 is a known substantially disc-shaped rotating launcher, and has an engagement groove 13 in its radial direction, into which the striker 2 engages when the door is closed.
is bored, and two grooves are formed across the engagement groove 13.
A half engagement step 6 and a full engagement step 7 that engage with a locking surface 14 of a ratchet 8, which will be described later, are formed on each of the two legs. The ratchet 8 also has a substantially disk shape, and the surface facing the latch 5 includes a cam surface 15 cut out in an arc shape along the rotation locus of the latch 5, and the cam surface 15.
It consists of a locking surface 14 formed continuously in the circumferential direction, and a protrusion 16 projecting in the radial direction from the end of the locking surface 14. Below the ratchet 8, spring mounting holes 17 are formed along the outer periphery of the ratchet 8.

The spring 18 is held in a compressed state between one end surface of the groove 17 and the lower surface of the protrusion 16, so that the ratchet 8 is always attached to the latch 5.
It is biased in the direction of engagement (counterclockwise). still,
A ratchet pin 20 is installed on the back side of the ratchet 8 on the side facing the locking surface 14 across the shaft 19, and the ratchet pin 20 faces the back side from the cutout hole 21 of the body 1. (See Figure 2).

As shown in FIGS. 2 and 3, a bank plate 22 is attached to the back side of the body 1, and one end of the back plate 22 is connected to an outside handle (not shown). An out lever 23 is coaxially supported with an open lever 25 having one end connected to an inside handle (not shown), and an open lever 25 having one end connected to a door cylinder lock (not shown) is coaxially supported. a locking lever 24 that is connected and whose other end is connected to a lock knob (not shown);
is pivoted.

In addition, one end of the out lever 23 and the back plate 22
A spring 27 is provided between the locking portion 26 provided above the
is locked, so that the out lever 23 is always biased in the closing direction (clockwise).

This out lever 23 can be swung counterclockwise via a connecting loft 28 by operating an outside handle.

The open lever 25 has a substantially central portion overlapping the out lever 23 and is coaxially supported by the back plate 22, and one end is in contact with the end 720 of the ratchet 8. Further, the open lever 25 has an elongated hole 25a formed at the other end thereof, and a rod 29b protruding from one end of a link 29, which will be described later, is slidably fitted into the elongated hole 25a.

The locking lever 24 is pivotally supported by the bank plate 22 and has three arms 24a, 24b and 24C. The arm 24b of the locking lever 24 is connected to a lock knob via a knob lever 33 (see FIG. 1), and by displacing the knob lever 33 by operating the lock knob from inside the vehicle, the locking lever 24 can be moved.
The door lock device can be locked and unlocked by rotating the door to the lock position (■) or the unlock position (■). Further, the arm 24a of the locking lever 24 has 1. One end of the link 29 is rotatably connected,
A rod 29 hangs down from the other end of the link 29 and faces within the rotation locus of the out lever 23 and the open lever 25.
b is slidably fitted into the elongated hole 25a of the open lever 25. Therefore, by rotating the locking lever 24, the rod 29b of the link 29 can be displaced within the long hole 2Sa of the open lever 25.

The open lever 25 is attached to the back plate 22.
A substantially rectangular square hole 31 is bored within the tg movement range, and an engaging protrusion 31a is provided on the upper edge of the square hole 31 toward the inside of the square hole 31. On the other hand, the rod 29b of the link 29 has an inverted triangular engagement piece 2 at its tip.
9a is formed, and the engagement piece 29a is connected to the square hole 31.
It is arranged on the same surface as the engaging protrusion 31a that protrudes inward. When the door is closed, the engagement piece 29a and the engagement protrusion 31
a is in a disengaged state (see FIG. 2). Therefore, the locking lever 24 can be rotated to either the unlock position (2) or the lock position (2). On the other hand, when the door is in the open state, as shown in FIG. 5, the ratchet 8 rotates in a direction approaching the latch 5, and the pin 20 of the ratchet 8 moves downward in the opposite direction.Therefore, the open lever 25 that abuts the pin 20 rotates in the direction approaching the latch 5. Rotate clockwise in Figure 2, and open the long hole 25a on the other end.
The loft 29b of the link 29 inserted into the square hole 31
is pulled up toward the upper edge of the rod 29b, and the inverted triangular engagement piece 29a provided at the tip of the rod 29b comes into contact with the upper edge (FIG. 8). In this door open state, the engagement piece 29a and the engagement protrusion 31
a is in the engaged position, the link 29 cannot be moved more than once, and therefore the mouth and king lever 24 cannot be rotated to the locking position (2). In this case, the out lever 23 cannot be rotated. Move the pressing part 23a of the out lever 23 by one turn counterclockwise against the biasing force of the spring 27.
By moving the rod 29b of the link 29 downward, the engagement between the engagement piece 29a and the engagement protrusion 31a can be disengaged (see FIG. 10).
4 can be rotated to the lock position ■.

In this way, keyless locking is possible by operating the outside handle while the door is open.

Next, the inside handle side will be explained.

As shown in FIGS. 1 and 2, the back plate 22
An inlever 32 connected to the inside handle and a knob lever 33 connected to the mouth and knob are respectively pivotally supported by rotation shafts 41 and 42 on the upright portion 22a.

One end of the inside lever 32 is connected to the inside handle via a connecting rod 37, and the other end is brought into contact with one end of the open lever 25 (FIG. 1). As a result, when the inside handle is pulled, the open lever 25 that the tip of the inside lever 32 comes into contact with is pushed up, and the ratchet pin 20 in the notch hole 21 is moved upward. Therefore, the ratchet 8 rotates clockwise in FIG. 4 to open the latch 5. That is, when operating the inside handle, the open lever 25 is directly rotated regardless of the state of the locking lever 24. Also, the first
As shown in the figure, the in lever 32 and the knob lever 33
is connected to the in lever 32 by an abbreviated connecting lever 34 pivotally supported at the other end of the inlever 32.

A bent portion 34a is formed at one end of the connecting lever 34, and the bent portion 34a is fitted into an engagement hole 32a formed in the in-lever 32 with some play. As a result, when the inside lever 32 is rotated by a predetermined angle, the bent portion 34a of the connecting lever 34 comes into contact with the engagement hole 32a of the inside lever 32, and from then on, the connecting lever 34 rotates together with the inside lever 32. It is configured to rotate around a shaft 41.

Further, an engagement pin 34b is fixed to the other end of the connection lever 34 so as to protrude from both sides thereof, and a cough engagement pin 34b is fixed to the other end of the connection lever 34.
One end is an engagement hole 33a bored in the knob lever 33.
has been incorporated into. Here, a slide surface 40 and an engagement step 38 are formed in the engagement hole 33a, and in the locked state, one end of the engagement pin 34b is engaged with the engagement step 38. is being used. In addition, in this engaged state, the connection lever 34 is held by the knob lever 3 by the spring 43.
This is achieved by being biased in the direction of engagement with the 3. Further, one end of a torsion spring 35 is locked to the upright portion 22a, and if the free end of the torsion spring 35 is bent into a mouth shape (hereinafter referred to as the bent portion 35a), the upright portion 22a It is displaceably engaged in the opening-shaped engagement hole 36 formed in the opening, and is held in position by being engaged with the bottom surface of the engagement hole 36 by the biasing force of the spring. When the connecting lever 34 begins to rotate together with the in-lever 32 as described above, the engaging pin 34b of the connecting lever 34 separates from the engaging stepped portion 38 while pushing up the bent portion 35a of the torsion spring 35. However, as a result, the in-lever 32 and the knob lever 33 become uncoupled.

Next, the operation when opening the door from the indoor side in the four-wheeled position will be explained.

First, the door closing/opening in Figures 1, 2, and 4.

When the inside handle is pulled in the closed state, the inside lever 32 rotates via the connecting rod 37 as described above, and the inside lever 32 directly rotates the open lever 25. Then, the abutting ratchet pin 20 is pushed up against one end of the open lever 25, and the ratchet 8 can be rotated clockwise in FIG.
The latch 5 can be returned to the door opening position by releasing the engagement with the launch 5 (Fig. 11).In this way, when the inside handle is pulled, the outside handle side link mechanism does not move at all. The door can be opened by directly rotating the open lever 25.

At this time, the connecting lever 34 is also displaced in conjunction with the in-lever 32, and the connecting lever 34 rotates the knob lever 33 to the unlock position l via the engagement pin 34b (FIG. 5). The locking lever 24, which is engaged with the locking lever 24, is displaced into the unlocked position I (FIG. 8). In this way, even in the locked state, the door can be opened by simply pulling the inside handle without unlocking the lock knob, and the door lock device can be brought into the unlocked state.

Next, the keyless lock operation on the inside handle side will be explained.

When the inside handle is pulled in the open state of the door shown in FIGS. 7, 8, and 11, the open lever 25 is moved in the opening direction (counterclockwise in FIG. 8) via the inside lever 32.
The engagement piece 29a and the engagement protrusion 31a are in a non-engaged state (FIG. 9). Further, the connecting lever 34 is displaced in conjunction with the in-lever 32, and the engagement pin 34b slides on the slide surface 40 within the engagement hole 33a of the knob lever 33. When the in-lever 32 rotates by a predetermined angle, the bent portion 34a of the connecting lever 34 comes into contact with the end of the engagement hole 32a of the in-lever 32, and then the connecting lever 34 moves together with the in-lever 32. Therefore, the engagement pin 34b at the other end of the connecting lever 34 moves around the rotation shaft 41 of the in-lever 32, so that the engagement pin 34b is detached from the engagement step 38 of the engagement hole 33a. However, the in lever 32 and the knob lever 33 are in a disconnected state (
Figure 6). Therefore, in this state, the knob lever 33 can be rotated from the unlocked position ■ to the locked position H■, and as a result, the locking lever 24 can be rotated to the locked position ■ via the knob lever 33 by operating the lock knob. Can be done.

When the inside handle is returned after rotating the locking lever 24 to the locking position ■ as described above, the inside lever 32 returns to its original position, but the connecting lever 34 is spring-biased in the direction of engaging the knob lever 33. Therefore, if the engagement pin 34b returns to its original position while being engaged with the knob lever 33, a moment may be applied to the knob lever 33 in the direction of rotating it to the unlock position I. Therefore, in the present invention, the engagement pin 34b is returned to the knob lever 33 in a non-contact state. That is, when the engagement pin 34b separates from the engagement step portion 38, the bent portion 35 of the torsion spring 35
When a is pushed up against the spring biasing force of the torsion spring 35 and separated from the bent part 35a, the bent part 35a engages with the bottom surface of the engagement hole 33a again by the spring biasing force and returns to its original position. Return. And the connecting lever 3
4 returns to the original position, the engagement pin 34b returns to the original position without contacting the knob lever 33 while contacting the opposite side of the bent portion 35a, so that no moment is applied to the knob lever 33. It is securely held in the lock position (■). In addition, as described above, the engagement pin 34
When b is in contact with the opposite side of the bent portion 35a,
The in-lever 32 and the knob lever 33 are held in a non-engaged state, so that even if the inside handle is returned a little, the in-lever 32 and the knob lever 33 remain in the engaged state unless the engagement pin 34b disengages from the bent portion 35a. Since there is no going back, keyless locking can be performed smoothly.

When the door is closed after rotating the locking lever 24 to the lock position ■ in this way, the striker 2 on the vehicle body side
is engaged with the engagement groove 13 of the latch 5, and the latch 5 is rotated to the fully latched position against the biasing force of the spring 12.

Then, the full engagement step portion 7 of the latch 5 engages with the locking surface 14 of the ratchet 8, and the reverse rotation of the latch 5 is prevented (fourth
At this time, as shown in FIG. 2, the rod 29b of the link 29 has moved to a position facing the notch 23b of the out lever 23, so operate the outside handle to move the out lever 23 in the opening direction. (Counterclockwise), the rod 29b only fits into the notch 23b formed in the out lever 23 and cannot swing the link 29 (i.e., the open lever 25). Since the ratchet 8 connected via the pin 20 cannot be rotated, the launch 5
The engagement with the ratchet 8 cannot be released, resulting in a so-called idle lock state.

(Effects of the Invention) In the present invention, by configuring the vehicle door lock device as described above, even in the locked state, the door can be opened simply by pulling the inside handle without unlocking the lock knob. At the same time, the door lock device can be brought into an unlocked state. In addition, by pulling the inside handle, the inside lever and the knob lever can be brought into a disconnected state, so that the locking lever can be moved from the unlocked state to the locked position via the knob lever by operating the lock knob. This allows keyless rotation.

[Brief explanation of the drawing]

1 is a side view of FIG. 2, FIG. 2 is a rear view showing the door closed and locked states in the vehicle door lock device according to the present invention, and FIG. 3 is a sectional view taken along line A-A in FIG. Figure 4 is a front view showing the door closed and locked, Figures 5 to 7 are operation diagrams when operating the inside handle, Figure 8 is the door open,
Figure 9 is a rear view showing the link in the unlocked state. Figure 9 is a rear view showing the link is moved 78 degrees by the open lever when the door is open. Figure 10 is the rear view showing the link is swung by the out lever when the door is open. Rear view, 11th
The figure is a front view showing the door in an open and unlocked state. 23... Out lever 24... Locking lever 25... Open lever 32... In lever 32a, 33a... Engagement hole 33... Knob lever 34... Connection lever 34a...
Bent part 34b...Engagement pin 35...Toshin spring

Claims (3)

[Claims] (1) In a vehicle door lock device, the door cannot be opened even if the outside handle is operated when it is in the locked state, but the door can be opened by operating the inside handle,
The open lever that displaces the ratchet in the door opening direction and the in lever that is connected to the inside handle are always connected so that they work together, and the out lever that is connected to the outside handle is disengaged from the open lever when the locking lever is in the lock position. When the locking lever is in the unlocked position, it engages with the open lever, and when the inside handle is pulled in the locked state, the inside lever locks the locking lever while swinging the open lever in the door opening direction. A door lock device for a vehicle, characterized in that the door lock device is reversed from a position to an unlocked position, and an in lever and a locking lever are not linked. (2) In a vehicle door lock device in which the door cannot be opened even if the outside handle is operated in the locked state, but the door can be opened by operating the inside handle,
It has an inside lever that is connected to the inside handle and displaces the ratchet in the door opening direction, a knob lever that is connected to the locking lever, and a connection lever that connects and disconnects the inside lever and the knob lever, and the connection lever is , a first engaging part that engages and disengages from the in-lever, and a second engaging part that engages and disengages from the knob lever;
The engaging part is biased by a spring in the direction of engaging with the knob lever and is pivotally supported by the inlever eccentrically with respect to the rotation axis, and when the first engaging part is not engaged with the inlever, the second engaging part engages with the knob lever. By engaging with the in-lever so that the in-lever and the knob lever can be connected, the locking lever can be displaced from the locked position to the unlocked position via the knob lever in conjunction with the rotation of the in-lever. When the coupling part is engaged with the in-lever, the second engagement part is disengaged from the knob lever and the in-lever and knob lever are disconnected, thereby allowing the locking lever to be displaced from the unlocked position to the locked position. A vehicle door lock device characterized by: (3) The device according to claim (2), further comprising a holding member that holds the second engaging portion of the connecting lever in a non-contact state with the knob lever after the second engaging portion of the connecting lever is disengaged from the knob lever. Vehicle door lock device.