KR20040076058A - Door latch assembly having dead lock function - Google Patents

Abstract

PURPOSE: A vehicle door latch assembly having a deadlock function is provided to improve security of a door for vehicle robbery prevention. CONSTITUTION: According to the vehicle door latch assembly, the second motor is installed on a multi function terminal sensing plate. A gear is installed to rotate with a rotation axis of the second motor. A rotation angle lever is connected to an axis of the gear in the back of the multi function terminal sensing plate. And a deadlock lever(10) is connected to a bottom of the rotation angle lever. The deadlock lever is inserted into the first and the second slot hole(38,40) at the same time and is slid to the right and left.

Description

Door latch assembly having dead lock function

The present invention relates to a door latch assembly for a vehicle having a deadlock function, and more particularly, having a deadlock function to greatly improve the security for anti-theft by preventing the door from being opened by the operation of the door inner handle. A door latch assembly for an automobile.

Typically, opening and closing of a door for a vehicle is made by operating a handle inside and outside the door, and locking and releasing operations of the door are made by a wireless remote control, a personal identification card (PLC), or a door key. The opening and closing and locking and unlocking mechanism of the door is done in the door latch assembly.

In the lever structure of a general door latch assembly, there is a lever that operates in a locked or unlocked position by operating a door key, and also locks and unlocks by operating a safety knob installed at an upper end of a door trim in a vehicle interior. There is a lever that rotates to the locked and unlocked position by the operation of the remote control.

On the other hand, in the case of forcibly opening the door locked in the exterior of the vehicle, theft accident of the vehicle frequently occurs by switching the various levers to the unlocking position by using a predetermined forced release mechanism.

Accordingly, there is a demand for the development of a door latch assembly having more security to prevent vehicle theft.

Accordingly, the present invention has been invented in view of the above, and uses a deadlock motor (hereinafter referred to as a second motor) in addition to a central locking device by a central lock motor (hereinafter referred to as a first motor). Door latch assembly for automobiles with a dead lock function that improves the security of the door for preventing theft of the vehicle by not opening the door at all by opening and closing the door handle as well as the outside handle. The purpose is to provide.

The present invention for achieving this object is:

A door latch assembly comprising a multi-function terminal sensing plate, a door latch positioned at a lower side of the sensing plate, and a centralized locking device by a first motor.

A second motor installed on one surface of the multi-function terminal sensing plate; A gear meshed with the rotation shaft of the second motor and rotatably installed; A rotation angle lever connected to the gear shaft at a rear surface of the multi-function terminal sensing plate; Consists of a deadlock lever connected to the lower end of the rotation angle lever,

The deadlock lever provides a door latch assembly for a vehicle having a deadlock function, characterized in that it is fitted into the slot hole formed in the rotation lever of the door latch to be slidably moved from side to side.

In a preferred embodiment, one end of the deadlock lever is formed with a connection hole into which the lower end of the pivoting lever is inserted, and a slot hole formed in the pivoting lever of the door latch on the bottom of the vertically bent portion at the other end. The projection is formed so as to fit in.

In a more preferred embodiment, the first slot hole is formed on the upper plate of the pivoting lever in a 'b' shape, the second slot hole is characterized in that formed in the lower plate of the pivoting lever in a straight shape.

1 is a front view of a door latch assembly for a vehicle including a deadlock function according to the present invention;

2 is a rear view of a door latch assembly for a vehicle including a deadlock function according to the present invention;

Figure 3a, 3b is a plan view showing only the door latch separated from the door latch assembly for a vehicle having a deadlock function according to the present invention, Figure 3a shows the deadlock lever in the locked position, 3b shows the deadlock lever in the locked position Plan view showing the idling state of only the upper plate of the pivoting lever when

Figures 4a, 4b is a plan view showing only the door latch in the door latch assembly for automobiles having a deadlock function according to the present invention, Figure 4a shows the deadlock lever in the unlocked position, 4b shows the deadlock lever is locked Top view showing the state that the upper plate and the lower plate of the pivoting lever rotate simultaneously when in the unlocked position,

Figure 5 is a plan view showing the locking position of the lock lever in the door latch of the door latch assembly for automobiles of the present invention.

<Explanation of symbols for the main parts of the drawings>

10: deadlock lever 12: second motor

14 gear 16 rotation angle lever

17: projection 18: connecting hole

20: multi-function terminal sensing plate 22: connector

24: first motor 26: gear

28: first rotation angle lever 30: door latch

32: locking lever 34: locking lever

36: rotation lever 38: the first slot hole

40: second slot hole 42: connecting lever

44: slide lever 46: push lever

48: jungle group 50: flip lever

52: rod 54: folds

56: push end

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described.

1 is a front view of a door latch assembly for a vehicle including a deadlock function according to the present invention, Figure 2 is a rear view of a door latch assembly for a vehicle including a deadlock function according to the present invention.

The present invention, by using the second motor in addition to the centralized locking device by the first motor so that the door can not be opened at all by the opening and closing operation of the door inner handle as well as the door outer handle, security of the door for preventing theft of the vehicle It is to improve it further.

The configuration of the door latch assembly to which the deadlock function of the present invention is applied includes a multifunction terminal sensing plate, a central locking device, and the like.

The multi-function terminal sensing plate 20 has a key switch part and a position switch part made of copper at both ends, and they are connected by a connection line made of copper, and a connection line connected to each motor at its center part. Is further extended.

In addition, the connector 22 for signal exchange protrudes from the rear surface of the multi-function terminal sensing plate 20. Therefore, an operation signal such as a remote controller is input from the connector 22 to a terminal for locking or unlocking the key switch unit and the position switch unit or for receiving the Etax signal.

At the lower end of the multi-function terminal sensing plate 20, a conventional door latch 30 is assembled and positioned.

On the other hand, the centralized locking device is a basic locking device, the configuration is as follows.

The first motor 24 is mounted on one surface of the multi-function terminal sensing plate 20, and gears 26 interlocked with and interlocked with the rotation shaft of the first motor 24 are installed.

In addition, a first rotation angle lever 28 is mounted on a rear surface of the multi-function terminal sensing plate 20 to finally rotate each of the gears 26 by interlocking rotation of the gears 26.

In addition, the rear of the multi-function terminal sensing plate 20 is equipped with a locking lever 32 moving at a predetermined angle by the angular movement of the first rotation angle lever 28, the lower end of the locking lever 32 It is connected to the locking lever 34 of the door latch 30 to rotate at a predetermined angle.

Therefore, the locking lever 34 of the door latch 30 is angularly moved to the locked or unlocked position due to the driving of the first motor 24, thereby achieving the locked and unlocked state of the door.

Such a centralized locking device is a device that serves to move the lock lever 34 of the door latch 30 to the locked or unlocked position. When the lock lever 34 is in the locked position, the door handle 30 is operated by the handle of the outer door. The door cannot be opened.

Of course, when the door handle is operated, the lock lever in the locked position moves to the unlocked position, and the door is opened.

When the door is opened by the operation of the inner handle of the door, the risk of theft increases, and the door may be opened by the mischief of the children riding in the room. Accordingly, the door may not be opened by the opening / closing operation of the inner handle of the door. The present invention provides a deadlock device that can not be opened.

Here, each configuration constituting the deadlock function is as follows.

The second motor 12 is installed on one surface of the multi-function terminal sensing plate 20, and the gear 14 is rotatably engaged with the rotation shaft of the second motor 12.

In particular, the rear of the multi-function terminal sensing plate 20 is connected to the shaft of the gear 14 and the rotation angle lever 16 is installed, the lower end of the rotation angle lever 16 is a deadlock of the door latch 30 It is connected with the lever (10).

At this time, the deadlock lever 10 is fitted to the first and second slot holes 38 and 40 formed in the rotation lever 36 of the door latch 30 so as to be slidably moved from side to side.

More specifically, at one end of the deadlock lever 10 is formed a connection hole 18 into which the lower end of the rotation angle lever 16 is inserted, and at the bottom of the portion bent vertically at the other end The protrusion 17 is formed to fit into the first and second slot holes 38 and 40 formed in the rotation lever 36 of the door latch 30.

Referring to the operating state of the deadlock device having such a configuration as follows.

3A and 3B are plan views showing only a door latch in a door latch assembly for a vehicle having a deadlock function according to the present invention. FIG. 3A shows a case in which the deadlock lever is in a locked position. This is a plan view showing a state in which only the upper plate of the rotation lever rotates idle when in the locked position.

4A and 4B are plan views showing only a door latch in a door latch assembly for a vehicle having a deadlock function according to the present invention. Is a plan view showing a state in which the upper plate and the lower plate of the pivoting lever rotate simultaneously when is in the unlocked position.

For the understanding of the present invention, the locking and unlocking operation of the door latch will be described first.

As shown in FIG. 5, when the locking lever 34 of the door latch 30 is in the locked position, the slide lever 44 integrally connected with the connecting lever 42 is pushed even when the connecting lever 42 is pushed. The linear movement, but the push lever 46 attached to the slide lever 44 does not push the slide end 48 of the pivot lever 36 is the door will not open.

On the other hand, when the locking lever 34 is in the unlocked position, as shown in FIG. 4B, when the connecting lever 42 is pushed, the slide lever 44 integrally connected with the connecting lever 42 performs a linear movement. At the same time, the push lever 46 attached to the slide lever 44 pushes the slide end 48 of the pivot lever 36, and the pivot lever 36 rotates to release the door latch from the striker. The door is opened.

At this time, the pivoting lever 36 is a form in which two plates are overlapped. Usually, the two plates rotate at the same time, so as to lock and unlock the door latch, but the two plates are configured as a deadlock function described below. For

The deadlock lever 10 is mounted to the door latch 30 for the deadlock. As described above, the protrusion 17 of the deadlock lever 10 is the first plate of the rotation lever 36 having the two plates. And the second slot holes 38 and 40 at the same time.

More specifically, the first slot hole 38 of the upper plate of the pivot lever 36 is a '-' shaped hole, the second slot hole 40 of the lower plate is a one-shaped hole , The projections 17 of the deadlock lever 10 are fitted at the same time in the hole portion overlapping with each other in the slot hole.

Therefore, when the second motor 12 is driven by a signal such as a remote controller, and the signal is driven, the gear 14 engaged with the rotation shaft of the second motor 12 rotates, and then the multifunction terminal. The rotating angle lever 16 mounted on the rear of the sensing plate 10 rotates, and at the same time, the deadlock lever 10 of the door latch connected to the lower end of the rotating angle lever 16 is pushed or pulled and linear movement is performed. Let's do it.

As shown in FIGS. 3A and 3B, when the deadlock lever 10 is positioned in the locked position in a linear motion in which the deadlock lever 10 is pushed (the projection 17 of the deadlock lever 10 is formed on the upper plate of the pivot lever 36). In the case where the first slot hole 38 of the 'a' and the second slot hole 40 of the lower plate are simultaneously inserted and positioned), only the upper plate of the pivoting lever 36 is idling, thereby substantially door latching. The lower plate of the pivoting lever 36 for locking and releasing does not rotate, and the door does not open.

That is, the protrusion 17 of the deadlock lever 10 is slid in position along the 'a' part of the first slot hole 38 (part perpendicular to the straight second slot hole), so that the rotation lever 36 Only the top plate will idle.

In more detail, one side of the multi-function terminal sensing plate 10 is equipped with a pull lever 50 which is connected to the door inner handle and a long rod 52, and the pull portion 54 of the pull lever 50 is mounted. ) Is bent upward from one end of the upper plate of the pivoting lever 36 is in close contact with the formed pressing end (56).

Therefore, even if the rod 52 connected when the door is opened by manipulating the door inner handle is pulled to rotate the pull lever 50, the deadlock lever 10 is in the locked position as described above. Since the folding lever 50 rotates only the upper plate of the pivoting lever 36, the door cannot be opened even indoors.

However, the door may be opened even indoors unless the deadlock lever 10 is finally moved to the original position by rotating the rotation angle lever 16 which rotates at the same time by operating the second motor 12 by a means such as a remote controller. Since it can not be opened, it can be usefully applied to police cars and convoy vehicles when infants board.

On the contrary, as shown in FIGS. 4A and 4B, when the deadlock lever 10 is moved back to the unlocked position, the protrusion 17 of the deadlock lever 10 is moved toward the first slot hole 38. Located in the 'a' portion (part parallel to the second slot-shaped slot), the upper plate and the lower plate of the rotation lever 36 is rotated at the same time by the protrusion 17 of the deadlock lever 10, The door can be opened accordingly.

As described above, according to the door latch assembly for a vehicle having a deadlock function according to the present invention, regardless of the locking and unlocking of the door by the centralized locking device, the door is not opened by using the second motor and the deadlock lever. By doing so, the anti-theft effect can be further improved.

In particular, the door is not opened by the operation of the door inner handle as well as the door outer handle, thereby improving security and safety.

Claims (3)

A door latch assembly comprising a multi-function terminal sensing plate, a door latch positioned at a lower side of the sensing plate, and a centralized locking device by a first motor. A second motor 12 installed on one surface of the multi-function terminal sensing plate 20; A gear 14 meshed with the rotation shaft of the second motor 12 and rotatably installed; A rotation angle lever 16 connected to the gear 14 shaft at a rear surface of the multi-function terminal sensing plate 20; Consists of a deadlock lever 10 is connected to the lower end of the rotation angle lever 16, The deadlock lever 10 is fitted to the first and second slot holes (38, 40) formed in the pivoting lever 36 of the door latch 30 at the same time so as to be slidably movable left and right. Automotive door latch assembly with deadlock function. The lower end of the deadlock lever 10 is formed with a connection hole 18 into which the lower end of the pivoting lever 36 is inserted, and at the bottom of the portion bent vertically from the other end. Door for automobile having a deadlock function, characterized in that the projection 17 is formed so as to be fitted to the first slot hole 38 and the second slot hole 40 formed in the rotation lever 36 of the door latch 30 at the same time Latch assembly. The method according to claim 1 or 2, wherein the first slot hole 38 is formed in the upper plate of the pivot lever 36 in the shape of 'b', the second slot hole 40 is one (1) Door latch assembly for a vehicle having a deadlock function, characterized in that formed in the lower plate of the rotating lever 36 in the shape of a.