JPH10181350A - Door lock controlling mechanism for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a high safety by surely preventing any possible door opening in time of a car crash. SOLUTION: This control mechanism is so constituted as to control a door lock mechanism by the rotative operation of a door handle. In this case, it is additionally provided with a displacement regulating means capable of checking any relative displacement between a door handle unit 10 installed in a door outer 2 and a lock control unit 20 installed in a door inner 3, regulating any relative movements between these units 10 and 20 in time of a door deformation mode. Successively a projection 13 is formed in the specified part of a handle body 11 of the door handle unit 10, while a flange part 23 capable of engaging with this projection 13 is formed in the lock control unit 20 as well. In this connection, at the time of this door deformation mode, the projection 13 and this flange part 23 are engaged with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock control mechanism for a door handle provided on a back door of a vehicle such as a passenger car.

[0002]

2. Description of the Related Art In a back door or the like provided in a vehicle of this type, a door is opened and closed by a door handle provided at a predetermined portion of a door body. FIG. 3 shows an example of a structure around a door handle in a conventional back door. As shown in FIG. 3, the door body 1 of the back door
A door handle unit 10 is provided at a predetermined portion of the door outer (panel material) 2. A lock control unit 20 is provided at a predetermined portion of the door inner (panel material) 3 of the door body 1.

The handle body 11 of the door handle unit 10 is rotatably supported around a pivot 12. The handle body 11 also has an arm 11a extending toward the lock control unit 20.
The back door can be unlocked by rotating the handle body 11.

[0004] That is, as shown in FIG. 4, by rotating the handle main body 11 on the door outer 2 side (see the two-dot chain line), the arm 11 a acts on the lock control unit 20. Thereby, the lock of the door lock mechanism (not shown) mounted inside the door main body 1 can be released.

Here, FIG. 5 shows a main configuration of a door lock control mechanism for controlling the door lock mechanism by rotating the door handle unit 10 as described above. In the figure, a lock control main body 21 is attached to the door inner 3 and includes a control lever 22 with which the tip of the arm 11a contacts. And 2 in FIG.
When the arm 11a pushes down the control lever 22 by rotating the handle main body 11 as indicated by a chain line, the back door is unlocked.

[0006]

By the way, what is called a rear collision (collision from the rear with respect to the vehicle) in this type of vehicle.
Sometimes the impact unlocks the door lock mechanism,
The door may open. As the deformation mode at the time of such a collision, for example, as shown in FIG.
Are displaced in the directions of arrows A and B, respectively. At this time, looking at the positional relationship between the arm 11a and the control lever 22, the mode is the same as when unlocking, and the door is opened as it is.

In view of the above, an object of the present invention is to provide a door lock control mechanism for an automobile which reliably prevents door opening at the time of collision and realizes high safety.

[0008]

According to the first aspect of the present invention, there is provided a door lock control mechanism for controlling a door lock mechanism by rotating a door handle, wherein the door handle is provided on a door outer. Displacement restricting means for suppressing relative displacement between the unit and the lock control unit provided in the door inner is provided, and the relative movement of each unit is restricted in the door deformation mode.

According to a second aspect of the present invention, in addition to the above configuration, a projection is formed at a predetermined portion of a handle body of the door handle unit, and the lock control unit is engaged with the projection. An engaging flange is formed, and the projection and the flange are engaged in the door deformation mode.

According to the present invention, the door handle unit and the lock control unit are each provided with a projection and a flange to constitute a displacement regulating means for regulating the relative movement of each unit. Thus, in the deformation mode at the time of the collision, the displacement restricting means restricts the relative movement of the unit, that is, the positional relationship between the arm and the control lever can be kept substantially the same as at the time of locking.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a door lock control mechanism for a vehicle according to the present invention will be described below with reference to FIGS. I do.

In this embodiment, the basic structure of the back door around the door handle is the same as that of the above-described conventional example. That is, as shown in FIG. 1, the door handle unit 10 and the lock control unit 20 are provided at predetermined portions of the door outer 2 and the door inner 3 of the door body 1 of the back door, respectively.

The handle body 11 of the door handle unit 10 is supported rotatably about a pivot 12. The handle body 11 also has an arm 11a extending toward the lock control unit 20.
The back door can be unlocked by rotating the handle body 11.

In this embodiment, a displacement restricting means which can suppress relative displacement between the door handle unit 10 provided on the door outer 2 and the lock control unit 20 provided on the door inner 3 is additionally provided. As will be described later, each of the units 10, 2 in the door deformation mode by the displacement restricting means.
Zero relative movement is regulated.

That is, as shown in FIG. 2, the protrusion 1 is provided at a predetermined portion of the handle main body 11 of the door handle unit 10.
3 (hatched portion) and a flange portion 2 which can be engaged with the projection 13 on the lock control unit 20.
Form 3 The protrusion 13 is preferably provided on a rotation support portion of the handle main body 11 located near the base of the arm 11a. The projection 13 and the flange 23 constitute the displacement restricting means, and the projection 13 and the flange 23 are engaged in the door deformation mode.

In the door lock control mechanism of the present invention, the handle body 11 is normally rotated on the door outer 2 side, whereby the arm 11a of the handle body 11 pushes down the control lever 22 of the lock control unit 20, whereby the back door Can be unlocked.

On the other hand, in the deformation mode at the time of collision, the projection 13 and the flange 23 formed respectively on the door handle unit 10 and the lock control unit 20 are engaged. Thereby, in particular, the arm 11a on the door handle unit 10 side and the lock control unit 2
The relative displacement with respect to the control lever 22 on the 0 side is suppressed.

As described above, the displacement restricting means restricts the relative movement between the door handle unit 10 and the lock control unit 20, so that the positional relationship between the arm 11a and the control lever 22 is maintained substantially in the same state as when locked. . Therefore, even when the door is in the door deformation mode due to the impact at the time of a rear collision, it is possible to reliably prevent the door from being opened and to ensure high safety.

In the above embodiment, an example of application to a back door has been described. However, the present invention can be effectively applied to a door in which a similar deformation mode can occur, and the same operation as in the above embodiment can be achieved. The effect can be obtained.

[0020]

As described above, according to the present invention, in this type of backdoor, the displacement restricting means restricts the relative movement between the door handle unit and the lock control unit even in the deformation mode at the time of a rear collision, and releases the lock. It certainly prevents from becoming. In other words, by preventing the door from being opened at the time of a rear collision, accidents such as occupants being thrown out are prevented,
High security can be ensured.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a structural example around a door handle in an embodiment of a vehicle door lock control mechanism according to the present invention.

FIG. 2 is a partial perspective view showing a configuration of a main part of the embodiment of the vehicle door lock control mechanism according to the present invention.

FIG. 3 is a cross-sectional view showing a structural example around a door handle in a conventional door lock control mechanism.

FIG. 4 is a sectional view of an essential part for explaining an operation in a conventional door lock control mechanism.

FIG. 5 is a perspective view showing a configuration of a conventional door lock control mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door main body 2 Door outer 3 Door inner 10 Door handle unit 11 Handle main body 11a Arm 12 Axis 13 Projection part 20 Lock control unit 21 Lock control main body 22 Control lever 23 Flange part

Claims (2)

[Claims] 1. A door lock control mechanism for controlling a door lock mechanism by a rotation operation of a door handle, wherein a relative displacement between a door handle unit provided on a door outer and a lock control unit provided on a door inner is suppressed. A door lock control mechanism for an automobile, further comprising a displacement restricting means for restricting relative movement of each unit in a door deformation mode. 2. The vehicle door lock control mechanism according to claim 1, wherein a protrusion is formed at a predetermined portion of a handle body of the door handle unit, and the lock control unit is engageable with the protrusion. A door lock control mechanism for an automobile, wherein a flange portion is formed, and the projection and the flange portion are engaged in a door deformation mode.