KR20090064225A - Override structure of car door latch - Google Patents

Abstract

The present invention relates to an override structure of an automobile door latch, in which an arc-shaped slot (2a) formed in the inside handle lever (2) and an actuator lever (6a) connection side portion of the lock lever (5) are connected by an override rod (9). It features.

Therefore, when the inside handle is operated, the lock lever 5 is rotated by the override rod 9, and the actuator lever 6a is interlocked, and the safety lock lever connected thereto is operated to release the safety lock state. The door can be opened without manipulating the lock lever.

Description

Override structure of door latch for car}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door latch of an automobile, and more particularly, to an override structure of an automobile door latch, which is capable of releasing a locked state and opening a door by operating only an inside handle without operating a safety lock knob.

The door of the vehicle should be closed stably while driving, and should be unlocked and opened by manipulating the inside handles and the outside handles provided inside / outside the door.

A door latch for performing such a function is shown in FIG. 1, which includes an inside handle lever 2 and an outside handle lever 3 rotatably installed on the base plate 1, and an inside handle lever 2 and an out handle. An open lever (= pole lever) 4 interlocked with the side handle lever 3, a lock lever 5 rotatably fixed to the lower side of the base plate 1, and an actuator for rotating the lock lever 5 ( 6), the lower end is connected to the lock lever 5 and the upper end is selectively interlocked with the lock link 7 and the inside handle lever 2 connected to the slot 3a below the outside handle lever 3. And a child lock lever 8.

Therefore, when opening the door in the normally closed state, the inside handle lever 2 is rotated by pulling the inside handle of the inside handle and pulling the inside handle so that the child lock lever 8 rotates the outside handle lever 3. The open lever 4 is operated to open the door.

On the other hand, a function of allowing the lock state to be released by only pulling the inside handle without operating the safety lock knob during the above release operation is called an override, and the conventional low-cost door latch does not have such an override function.

Accordingly, there is a need for an implementation of an override function for improving passenger convenience.

Accordingly, the present invention has been invented in view of the above-mentioned issues, and the override function is implemented so that the occupant does not need to operate the safety lock knob when the door is opened, so that the convenience of the door opening is further improved. The purpose is to provide a structure.

The present invention for achieving the above object,

The inside handle lever and the outside handle lever rotatably installed on the base plate, the open lever interlocked with the inside handle lever and the outside handle lever, the lock lever rotatably fixed to the lower side of the base plate, and the lock lever rotated. In the door latch of the vehicle comprising an actuator to be connected to the lock lever, the lower end is connected to the slot of the lower handle lever, the child handle lever is selectively interlocked with the inside handle lever,

The inside handle lever and the lock lever are characterized in that connected by an override rod.

The upper end of the overdrive rod is connected to an arc-shaped slot formed in the inside handle lever.

In addition, the end portion of the open lever is extended and is characterized by being rotated by the child lock lever.

By the above configuration, the lock lever is interlocked and the lock state is released when the inside handle is operated, thereby eliminating the need to separately operate the safety lock knob when the occupant opens the locked door.

That is, the override function is implemented, thereby making it easier to release the door lock state through the inside handle operation, thereby improving the convenience of the user.

Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

Figure 2 is a block diagram of a door latch according to the present invention, the same reference numerals are given to the same parts as in the prior art.

The inside handle lever 2 which is rotated according to the outside handle manipulation is rotatably installed on the upper side of the base plate 1 formed in a predetermined shape according to the arrangement state of the respective operation levers.

The child lock lever 8 is installed on the same axis as the inside handle lever 2, and the child lock lever 8 is integrally or separated from the inside handle lever 2 according to a user's manipulation of the connecting knob. The rotation of the handle lever 2 is transmitted to or disconnected from the connecting parts, thereby preventing children from opening the door unintentionally while performing a function of promoting safety.

On the other side of the upper side of the base plate (1), the outside handle lever (3) rotated by the outside handle manipulation is rotatably installed, and the open lever (4) is installed to interlock with the outside handle lever (3). do.

The open lever 4 is directly connected to the pawl to open the door by releasing the latching state of the latch during operation.

On the other hand, the lower portion of the base plate (1) is mounted so that the lock lever (5) can be rotated about the middle portion, one end of the lock lever (5) is linked to the operating lever (6a) of the actuator (6) The other end is connected with the lower end of the lock link 7 so that relative rotation is possible.

The upper end of the lock link 7 is connected to a slot 3a formed at the bottom of the outer handle lever 3.

Meanwhile, the inside handle lever 2 and the lock lever 5 are connected to the override rod 9.

The override rod 9 is a simple straight rod, and the upper and lower ends are bent at right angles to facilitate connection.

The upper end of the override rod (9) is connected to the arc-shaped slot (2a) formed on the upper side of the inside handle lever (2) spaced apart by a predetermined distance, the lower end of the rotation shaft and the actuator of the lock lever (5) The lever 6a is inserted into and connected to the through hole formed in the middle portion of the connecting portion.

As described above, the reason why the inside handle lever 2 and the override rod 9 are connected to the slot 2a is that the safety lock knob must be unlocked after the override operation and the inside handle returns to its original position. After that, the safety lock knob should be able to move freely.

The safety lock knob is connected to the actuator lever 6a so that the actuator lever 6a is connected to the lock lever 5, and the lock lever 5 and the inside handle lever 2 are overriding the rod 9. Since the connection part of the override rod 9 and the inside handle lever 2 must be connected to the slot 2a as described above so that interlocking action can be made in some cases.

In addition, the open lever 4 and the inside handle lever 2 are formed to be in direct contact with each other to prevent latch jamming.

In addition, the open lever 4 has an end portion molded toward the inside handle lever 2 so that the open lever 4 can be rotated upward by being caught by an end of the child lock lever 8 which is integrally rotated with the inside handle lever 2. It is.

3 to 5 are operating state diagrams of the door latches to which the present invention is applied. As shown in FIG. 3, when the user operates the inside handle in a lock state in which the lock lever 5 is rotated clockwise, the inside handle As the lever 2 is rotated in the clockwise direction, the lock lever 5 is rotated counterclockwise by pulling the override rod 9 upwards (from green to yellow) to release the locked state.

At this time, the actuator lever 6a connected to the lock lever 5 is also rotated in the unlocked state, and the safety lock knob connected to the actuator lever 6a is also switched to the unlocked state.

4 and 5 illustrate the operation of the open lever 4 when the inside handle is operated. When the inside handle is operated, the inside handle 2 is rotated clockwise and the child lock lever 8 is a child lock function. the off state) is integrally rotated so that the end portion lifts the extended molded end portion of the open lever 4 upward and rotates the open lever 4 counterclockwise (red to yellow in Fig. 5).

As a result, as shown in FIG. 5, the outside handle lever 3 also rotates in the same direction.

By the above operation, it is possible to release the lock state of the door and open the door by only operating the inner handle without directly operating the safety lock knob.

On the other hand, as shown in Fig. 6, when the door is not locked by the lock lever 5, the lock lever 5 is rotated counterclockwise, so that the upper end of the override rod 9 is an inside handle lever ( It is located in the right end (yellow position) in the slot 2a of 2).

In this state, even if the inside handle lever 2 is rotated by the inside handle operation, the override rod 9 only moves left and right in the slot 2a, and thus does not affect the operation of the lock lever 5. Therefore, the latch release operation in the normal door unlock state is normally performed.

1 is a block diagram of a vehicle door latch according to the prior art,

2 is a block diagram of an automobile door latch according to the present invention;

3 is an operating state diagram of the inside handle lever, the override rod and the lock lever according to the inside handle operation,

4 and 5 is an operating state of the open lever and the outside handle lever according to the inside handle operation,

6 is an operational state diagram of the inside handle lever and the override rod in the door normal state (lock lever unlocked state).

* Description of the symbols for the main parts of the drawings *

1: Base plate 2: Inside handle lever

2a: arc slot 3: outside handle lever

3a: slot 4: open lever

5: lock lever 6: actuator

6a: Actuator Lever 7: Lock Link

8: child lock lever 9: override road

Claims (3)

The inside handle lever 2 and the outside handle lever 3 rotatably installed on the base plate 1, the open lever 4 interlocked with the inside handle lever 2 and the outside handle lever 3, and the The lock lever 5 rotatably fixed to the lower side of the base plate 1, the actuator 6 for rotating the lock lever 5, the lower end is connected to the lock lever 5, and the upper end is the outside handle. In the door latch of a vehicle comprising a lock link (7) connected to a slot (3a) below the lever (3), and a child lock lever (8) selectively interlocked with the inside handle lever (2), Override structure of the vehicle door latch, characterized in that the inside handle lever (2) and the lock lever (5) is connected by an override rod (9). 2. The override structure of an automobile door latch according to claim 1, wherein an upper end of the overdrive rod (9) is connected to an arc-shaped slot (2a) formed in the inside handle lever (2). 2. The override structure of an automobile door latch according to claim 1, wherein an end of the open lever (4) is extended and rotated by the child lock lever (8).

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