JPH0336679Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a door lock device installed on the door of an automobile, etc. More specifically, the invention relates to an open lift lever that controls the movement of an inside handle and an outside handle through an open link. The structure is configured such that the rotation of the open lift lever causes the pole to be released from the latch and the door can be opened, and the locking is performed by interrupting the transmission of motion from the open link to the open lift lever using a locking lever. This invention relates to a door lock device.

(Prior Art) A door lock device that has a structure that allows the door to be locked without using a key (a structure that allows so-called keyless locking) has been used in the past. There are many accidents where the door is left locked and the key is locked inside the car. Therefore, in order to avoid this accident, door lock devices having a structure in which the locking knob cannot be pressed when the door is opened are also being used.

(Problem that the invention aims to solve) However, in cases where the above-mentioned locking knob cannot be pressed, the operator often thinks that it can be pushed due to habit and tries to force it, and sometimes the door locking device is There were also cases of damage.

The present invention has been developed in view of the above problems, and its purpose is to realize a door lock device with a simple structure that allows the locking knob to be pressed when the door is open, but does not allow keyless locking.

(Means for solving the problem) The present invention to solve the above problem transmits the movement of the inside handle and the outside handle to the open lift lever via the open link, and the rotation of the open lift lever causes the movement of the inside handle and the outside handle to be transmitted to the open lift lever. In the door locking device, the locking lever is configured such that the door can be opened by separating the locking lever from the latch, and the locking is performed by interrupting the transmission of motion from the open link to the open lift lever using the locking lever. One end of a return spring selectively driven to the open lift lever is hooked to the open lift lever, the other end of the return spring is hooked to the locking lever, and when the door is opened, Therefore, one end of the return spring is configured to be moved to a position where the return spring generates a biasing force that drives the locking lever only in the direction of the unlocked position.

(Function) In the door locking device of the present invention, even if the locking knob is pushed in when opening the door, it always returns to its original position due to the movement of the return spring, so keyless locking cannot be performed.

(Example) Hereinafter, an example of the present invention will be described using FIGS. 1 to 6. In Figures 1 to 6, 1 is a base sub-plate, 2 is a synthetic resin body,
Reference numeral 3 denotes a base plate, and these are integrally laminated by flat head machine screws 4 screwed in from the base plate 3 side. An open lever 5 is pivotally mounted on the base sub-plate 1 by a pin 6, and the open lever 5 is supported by a spring 7 hooked between the hook portion 5a and the base sub-plate 1. , is biased to rotate in the clockwise direction in FIG. 8 is open lever 5
It is an open link that is pivotally connected to the arm portion 5b of the arm 5b by a pin 9, and has a bent portion 8b bent toward the body 2 at the tip, and a long hole 8c is bored in the side of the tip. . Reference numeral 10 designates a bell crank pivotally connected to the side portion 1a of the base sub-plate 1 by a pin 11, and one end 10a of which is engaged with the arm portion 5c of the open lever 5. 12 is a locking lever pivotally connected to the base sub-plate 1 by a pin 13;
The pin 12b implanted in the arm portion 12a is inserted into the long hole 8c of the open link 8. The bent arm portion 12c restricts the rotation of the locking lever 12, and this bent arm portion 12c serves as a stopper 1b formed at the end of the base sub-plate 1.
The locking lever 12 rotates within the range in which it comes into contact with c. That is, the locking lever 12
The folding arm 12c rotates within a range that moves between the position shown by the solid line in FIG. 1 (unlocked position) and the position shown by the two-dot chain line (locked position). However, this rotational action becomes a so-called snap action when the door is closed due to the action of a return spring 14 that is latched to exert a repulsive force between the arm portion 12d and an open lift lever 15 (described later). There is. Therefore, the bent arm 12c of the locking lever 12
does not stop between the position shown by the solid line and the position shown by the two-dot chain line, and in this intermediate position, it is rotationally biased in either direction and moves to the position shown by the solid line or the two points. One of the positions indicated by the dashed line will be selected. However, as will be described later, when the door is opened, it is urged to rotate only in the direction of the unlocked position. 15 is a substantially L-shaped open lift lever, which has an abutting bent portion 15a at one end;
A circular hole 15c is bored in the middle part on the side of the bent part 15a, and a long hole 15d extending in the direction of the circular hole 15c is bored in the corner part. (See Figure 4). Furthermore, a circular hole 15b is bored at the other end, and the circular hole 15b serves as a hole for locking the return spring 14. A pin 16 fixed to the base sub-plate 1 is inserted into the long hole 15d of the open lift lever 15, so that the open lift lever 15 can rotate around the pin 16, and at the same time, the long hole 15d
It is also designed to be able to slide in the longitudinal direction.
Also, the bent portion 15a of the open lift lever 15
When the open link 8 moves in the direction of the locking lever 12 from the position shown in FIG. The open lift lever 15 is designed to rotate in the counterclockwise direction in FIG. 1 about the pin 16 portion. Further, a pole latch pin 17 that passes through the long hole 1d of the base sub-plate 1 and the long hole 2d of the body 2 to the opposite side of the body 2 (base plate 3 side) is inserted into the circular hole 15c, and is crimped. It's stopped. Note that the shapes of the elongated holes 1d and 2d are the same in this example. Further, as is clear from FIG. 3, in the space between the body 2 and the base plate 1, there is a latch 19 pivotally connected to the body 2 by a pin 18, and a pin 1 implanted in the latch 19.
9c, a spring 20 biases the latch 19 to rotate in the disengagement direction, a pawl 21 rotatably supported by a center pin 25 caulked to the base sub-plate 1, and this pawl 21 moved toward the latch 19 side. A spring 22 that biases the rotation, a slider 24 that takes away the play of the striker 23 when it is engaged with the latch 19, and a body that reduces the collision noise that occurs when the pawl 21 collides with the latch 19 when the pawl 21 returns. A cushion 30 and the like fitted to the cushion 2 are disposed. The space between the body 2 and the base plate 3 is formed to be slightly deeper than the thickness of the pole 21, and the base plate 3 receives and supports the center pin 25 through its through hole. The pole 21 has a circular hole 2
1a is bored into the circular hole 21a, and the tip of the pawl latch pin 17 implanted in the open lift lever 15 is loosely inserted into the circular hole 21a. As a result, the pole 21 is moved to the open lift lever 15.
Similarly to the open lift lever 15, the range of rotation is limited to the range where the pole latch pin 17 contacts the inner wall surface of the elongated hole 1d or 2d. Now, regarding the rest position of the pole 21, as shown in FIG. 3, between the state where the striker 23 has entered (when the door is closed) and the state where the striker 23 has left, the former state is better than the latter state. Most of the poles 21 are rotated clockwise in FIG. Also, the locking lever 12 at the end of the return spring 14,
The positional relationship between the locking points F and G on the open lift lever 15 and the center H of the pin 13 is such that when the door is closed, the locking knob can be moved to a position below the straight line passing through points G and H (Fig. 1). Point F is set so that it can be moved by operation, but when the door is opened, the straight line passing through G and H changes due to the movement of G.
It is set so that point F cannot reach the lower position (FIG. 1), that is, so that the bent arm 12c contacts the stopper 1b before that point.
Note that the arm portion 10b of the bell crank 10 is a rod 26.
The extension of the pin 9 is connected by a rod 27 to an outside handle (not shown) of the door. The sliding arm 12b of the locking lever 12 is connected to a locking knob (not shown) by a rod 28, and the arm 12e is connected to a key cylinder (not shown) by a key rod 29. The door lock device having the above structure is usually mounted between the outer panel and the inner panel of the door in the same vertical relationship as shown in FIG. 1 (the striker 23 is fixed to the vehicle body).

According to such a configuration, when the door is opened, the operation is exactly the same as that of the conventional device, but when the door is opened, the open lift lever 15 is rotated by a predetermined amount in the counterclockwise direction in FIG. 1 compared to when the door is closed. It is located in the same position. For this reason, the latching point G has moved downward in FIG. 1, and the straight line connecting points H and G has rotated a certain amount in the clockwise direction. Therefore, the locking point F cannot move below this straight line, and the locking lever 12 is always urged to rotate counterclockwise in FIG. 1 by the return spring 14. Therefore, in this state, even if the operator pushes in the locking knob, it will be pushed back by the return spring 14 when the operator releases the locking knob.

Note that the present invention is not limited to this embodiment and can be modified in various ways.

(Effects of the Invention) As explained above, according to the present invention, since the door cannot be locked with the locking knob when the door is opened, locking of the key can be prevented. Furthermore, since the locking knob is structured so that it can be pushed, it is possible to prevent damage to the mechanism caused by trying to force the locking knob as in conventional devices. Furthermore, there are almost no problems with the number of parts.

[Brief explanation of the drawing]

1 is a front view showing one embodiment of the door lock device according to the present invention, FIG. 2 is a right side view of the door lock device shown in FIG. 1, FIG. 3 is a rear view of the door lock device shown in FIG. 1, and FIG. 1 is an exploded perspective view showing the main parts of the door lock device shown in FIG. 1, and FIG. 5 is a sectional view taken along the line AA in FIG. 1. 1...Base sub-plate, 2...Body, 3
...Base plate, 5...Open lever, 8
...Open link, 10...Bell crank, 1
2... Locking lever, 14... Return spring, 15... Open lift lever, 16...
...pin, 17...pole latch pin, 19...latch, 21...pole, 26, 27, 28...rod, 29...key rod.

Claims (1)

[Scope of utility model registration request] The movement of the inside handle and the outside handle is transmitted to the open lift lever via the open link, and the pole is separated from the latch by rotation of the open lift lever to open the door. In a door locking device that uses a locking lever to interrupt the transmission of motion from the locking lever to the open lift lever, one end of a return spring that selectively drives the locking lever to an unlocked position or a locked position is hooked to the open lift lever. the other end of the return spring is engaged with the locking lever, and when the door is opened, the displacement of the open lift lever causes the return spring to release one end of the return spring and release the locking lever. A door lock device configured to be moved to a position that generates a biasing force only in the direction of the lock position.