JP2002047844A - Door lock release preventing mechanism for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To keep a door opening closed by preventing abrupt release of the locked state of a door when impact force is applied to the door from the outside. SOLUTION: The door 1 for closing the door opening of a vehicle body is provided with a bar-shaped handle 7 extended along the outer surface of the door 1 and pivotally supported to the door 1 so as to be put in free reciprocating rotation A, B; a locking means 21 for detachably locking the door 1 to the vehicle body; and a link mechanism 22 for interlockingly connecting the locking means 21 to the handle 7. Interlocked with the forward rotation A of the handle 7, the link mechanism 22 moves forward C, and the locking means 21 is interlocked with the forward movement C to release the locked state. A regulating means 39 is provided for regulating the forward movement C of the link mechanism 22 by getting into a moving locus 38 when the link mechanism 22 moves forward C, following the deformation of the door 1 in the case the door 1 is deformed toward the inside of the vehicle body by the impact force F applied from the outside of the vehicle body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is intended to prevent the locked state of the door from being abruptly released when any object collides with the door locked to the vehicle body by closing the door opening. The present invention relates to a door unlocking prevention mechanism for an automobile.

[0002]

2. Description of the Related Art Conventionally, there is an automobile constructed as follows.

[0003] That is, usually, a door opening is formed in a vehicle body of an automobile, and a door is provided for closing the door opening so that it can be opened and closed. The door extends along the outer surface of the door, and has a rod-shaped handle pivotally supported by the door so as to be able to move forward and backward, and the door is detachably engaged with the vehicle body. It is provided with locking means and a link mechanism for linking the locking means to the handle.

The link mechanism moves forward in conjunction with the forward rotation of the handle, and the locking means interlocks with the forward movement of the link mechanism to release the locked state by the locking means. It is like this, by releasing this locked state,
The door can be opened.

[0005] Conventionally, the above-mentioned handle has been disclosed in Japanese Unexamined Utility Model Publication No.
There is a handle disclosed in Japanese Patent No. 42563, and the handle is rotatable from the door side to the outside of the vehicle body and is capable of rotating back and forth.

[0006]

When the door is closed and locked to the vehicle body, for example, when the vehicle is running, an object collides with the door from the outside, and the impact is generated. When the door is greatly deformed by force, a part of the deformed door comes into contact with the link mechanism and moves the link mechanism forward, so that the locked state may be suddenly released.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object collides with the door from the outside in a state where the door is closed and locked to a vehicle body with the door closed. When an impact force is applied to the door from the outside such as when the door is closed, the locked state of the door with respect to the vehicle body is prevented from being unexpectedly released, so that the door opening is kept closed. It is another object of the present invention to achieve this with a simple configuration.

[0008]

SUMMARY OF THE INVENTION A door lock release preventing mechanism in an automobile according to the present invention for solving the above-mentioned problems is as follows.

According to the first aspect of the present invention, a door 1 for opening and closing a door opening formed in a vehicle body extends along the outer surface of the door 1 and can be freely moved forward and backward. A rod-shaped handle 7 pivotally supported by the door 1 and a locking means 21 for locking and unlocking the door 1 with respect to the vehicle body
And a link mechanism 22 for interlockingly connecting the locking means 21 to the handle 7.
In the automobile, the link mechanism 22 moves forward C in conjunction with the forward movement C, and the locking means 21 interlocks with the forward movement C of the link mechanism 22 so that the locked state of the locking means 21 is released. ,

When the door 1 is deformed toward the inside of the vehicle body by receiving an impact force F from outside the vehicle body, the door 1
A restricting means 39 is provided for restricting the forward movement C of the link mechanism 22 by entering the movement trajectory 38 of the link mechanism 22 at the time of the forward movement C with the deformation of 1.

According to a second aspect of the present invention, in addition to the first aspect, the door 1 includes outer and inner panels 3 and 4 facing each other in the width direction W of the vehicle body. A handle base 3 that extends and is attached to the outer panel 3 so as to reinforce a portion of the outer panel 3 that is located near the handle 7 in a side view of the vehicle body.
In the car equipped with 2,

The restricting means 39 is connected to the link mechanism 22
And a portion 41 of the handle base 32 that faces the movement trajectory 38 of the regulating protrusion 40 during the forward movement C of the link mechanism 22 in the width direction W of the vehicle body. .

According to a third aspect of the present invention, in addition to the second aspect, the handle base 32 extends along the back surface of the outer panel 3 and is attached to the outer panel 3. An automobile having a flange 34 integrally projecting from the outer edge toward the link mechanism 22 side,

A portion 41 of the handle base 32 which faces the movement locus 38 of the regulating projection 40 in the width direction W of the vehicle body.
Is constituted by the portion of the flange 34 described above.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a door for opening and closing a door opening formed in a side portion of a vehicle body of an automobile, and an arrow Fr indicates the front of the vehicle body.

The door 1 includes a door body 2 constituting a lower part thereof, and a door window (not shown) constituting an upper part of the door 1 and supported by the door body 2.

The door main body 2 includes a sheet metal outer panel 3 and an inner panel 4 which are fixed to each other in a widthwise direction W of the vehicle body (same as the widthwise direction W of the door 1).
A space 5 is formed between the panels 3 and 4.

Near the outer surface of the outer panel 3 of the door 1, there is provided a rod-shaped handle 7 extending substantially horizontally along the outer surface and in the front-rear direction. The other end 9 which is the front end of the handle 7 is connected to the outer panel so that the one end 8 side which is the rear end in the longitudinal direction of the handle 7 is directed toward the outside of the vehicle body and can be freely rotated back and forth A and B. The handle 7 is pivotally supported by a pivot support 10, and a middle portion in the longitudinal direction of the handle 7 is a grip 11 for an operator.

The outer panel 3 is opposed to the grip portion 11 in the width direction W of the vehicle body, and has a concave portion 12 recessed toward the inner panel 4 in order to facilitate the grip operation on the grip portion 11. Is formed. The recess 12 is formed by pressing and has a spherical shape.
Thus, the recess 12 near the handle 7 is provided with greater strength and rigidity.

The pivot support 10 includes a base 16 fastened by a fastener 15 to a portion of the outer panel 3 facing the other end 9 of the handle 7 in the width direction W of the vehicle body, and another end of the handle 7. And a pivot arm 19 protruding from the base 9 and pivotally supported by a pivot shaft 18 having a vertical axis 17 with respect to the base portion 16. The rotations are A and B. In this case, the pivot shaft 18, and the base 16 and the pivot arm 19, which are pivotally supported by the pivot shaft 18, are disposed in the space 5.

A known locking means 21 is provided for locking the door 1 to the opening edge of a door opening formed in the vehicle body so as to be freely engaged and disengaged. The locking means 21 is connected to the handle 7 in an interlocked manner. A link mechanism 22 is provided, and the link mechanism 22 is disposed in the space 5.

The link mechanism 22 includes a bracket 24 fastened by a fastener 23 to a portion of the outer panel 3 facing the one end 8 of the handle 7 in the width direction W of the vehicle body,
An interlocking arm 27 having an axial center 25 pivotally supported by the bracket 24 by a pivot shaft 26 extending in the front-rear direction and one end of which is interlockingly connected to the one end 8 of the handle 7;
A link 28 extends vertically and has an upper end connected to the other end of the interlocking arm 27 and a lower end connected to the locking means 21.

The link mechanism 22 has a spring (not shown) for rotating the interlocking arm 27 in one direction. With this spring, the handle 7 is moved along the outer surface of the outer panel 3 to the outer surface as a whole. (The solid line in each figure).

As shown by a two-dot chain line in FIGS. 1 and 2, when an external force is applied to the handle 7 to make a forward rotation A, the interlocking arm 27 and link 28 of the link mechanism 22 are interlocked with this. Each of the forward movements C, the forward movement C of the link mechanism 22 is interlocked with the locking means 21, and
1 is released, and by this release, the opening operation of the door 1 is enabled.

When the external force on the handle 7 is released, the interlocking arm 27 rotates in one direction by the spring, that is, moves back D, and the handle 7 rotates B in conjunction with this. At the same time, the interlocking arm 27 also moves backward D. Then, the locking means 21 interlocks with the return movement D of the link mechanism 22, and the locking means 21 enables the door 1 to be locked again. At this time, when the door 1 is closed from the state in which the door 1 is open, the door 1 closes the door opening and is automatically locked by the locking means 21 at the same time.

When viewed from the side of the vehicle body, a sheet metal handle base 32 attached to the outer panel 3 is provided so as to reinforce the portion of the outer panel 3 in the vicinity of the handle 7.
5 and 23, they are fastened to the outer panel 3 together.

The handle base 32 is provided with the recess 12
And a base body 33 extending along the back surface and attached to the outer panel 3 near the back surface of the portion of the outer panel 3 including the outer panel 3; Link 2 of mechanism 22
A reinforcing flange 34 integrally projecting toward the 8 side;
35. The base body 33 is provided with the concave portion 1.
2 has a spherical portion externally fitted thereto.
Reference numerals 4 and 35 improve the strength and rigidity of the handle base 32.

In the above configuration, as shown by a dashed line in FIG. 1, the door 1 is given an impact force F from the outside of the vehicle body, and the outer panel 3 of the door 1 is deformed toward the inside of the vehicle body. At this time, along with the deformation of the outer panel 3 of the door 1, the movement locus 38 at the time of the forward rotation A of the link mechanism 22 is performed.
A restricting means 39 is provided to restrict the forward rotation A of the link mechanism 22.

In all figures, the restricting means 39 includes a restricting projection 40 formed on the link mechanism 22 and protruding toward the outer panel 3, and a restricting projection 40 at the time of the forward movement C in the width direction W of the vehicle body. And a portion 41 of the handle base 32 that is disposed near the movement locus 38 and faces the movement locus 38.

The restricting projection 40 protrudes upward from the upper end of the link 28 and has a protruding end protruding toward the outer panel 3 side. Further, the portion 41 of the handle base 32 is constituted by a portion of the upper flange 34 of the handle base 32 which faces the movement locus 38 of the regulating protrusion 40 in the width direction W of the vehicle body.

According to the above configuration, when the door 1 is deformed toward the inside of the vehicle body by receiving an impact force F from the outside of the vehicle body, the link mechanism 22 is deformed along with the deformation of the door 1.
A restricting means 39 is provided for restricting the forward movement C of the link mechanism 22 by entering the movement path 38 at the time of the forward movement C.

For this reason, when the door 1 closes the door opening and is locked to the vehicle body, when the door 1 is hit by any object from the outside, the door 1 is impacted from the outside. When the force F is applied and the door 1 is deformed toward the inside of the vehicle body, the restricting means 39 enters the movement trajectory 38 of the link mechanism 22 during the forward movement C as described above. The forward movement C of the link mechanism 22 is restricted (the dashed line in FIG. 1).

Therefore, even when the impact force F is applied to the door 1 from the outside as described above, the locked state of the door 1 with respect to the vehicle body is prevented from being abruptly released. The opening is kept closed.

As described above, the door 1 has the outer and inner panels 3 and 4 facing each other in the width direction W of the vehicle body, extends along the back surface of the outer panel 3, and has the handle 7 as viewed from the side of the vehicle body. When the handle base 32 attached to the outer panel 3 is provided so as to reinforce the portion of the outer panel 3 located near
The restricting means 39 is connected to the restricting projection 40 formed on the link mechanism 22 and the link mechanism 22 in the width direction W of the vehicle body.
Trajectory 38 of the regulating protrusion 40 during the forward movement C
And the portion 41 of the handle base 32 opposed to the above.

For this reason, a handle base 32 for reinforcing a portion of the outer panel 3 located near the handle 7 is provided.
Is used for the restricting means 39. Therefore, as described above, it is possible to prevent the locked state of the door 1 from being released from the vehicle body unexpectedly.
The use of the handle base 32 achieves a simpler configuration.

As described above, the handle base 3
2 includes a base body 33 extending along the back surface of the outer panel 3 and to which the outer panel 3 is attached, and a flange 34 integrally projecting from an outer edge of the base body 33 toward the link mechanism 22. In this case, the movement trajectory 38 of the regulating protrusion 40 in the width direction W of the vehicle body
The portion 41 of the handle base 32 which is opposed to the flange portion 34 is formed.

For this reason, as described above, since the flange 34 protrudes toward the link mechanism 22 side, the protruding dimension of the restricting protrusion 40 can be reduced.
Preventing the locked state of the door 1 with respect to the vehicle body from being unexpectedly released is achieved with a simpler configuration.

[0039]

The effects of the present invention are as follows.

According to the first aspect of the present invention, a door that opens and closes a door opening formed in a vehicle body extends along the outer surface of the door and is pivotally supported by the door so as to be able to move forward and backward. And a link mechanism for interlockingly connecting the locking means to the handle, and a link mechanism for interlockingly connecting the locking means to the handle. In an automobile, the link mechanism moves forward in conjunction with the forward movement of the link mechanism, and the locking means is moved in conjunction with the forward movement of the link mechanism to release the locked state of the locking means.

When the door is deformed toward the inside of the vehicle body by receiving an impact force from the outside of the vehicle body, the door enters into the movement trajectory of the link mechanism during the forward movement with the deformation of the door. A regulating means for regulating the forward movement of the link mechanism is provided.

For this reason, when the door is closed to the door and is locked to the vehicle body, an impact force is applied to the door from the outside, for example, when an object collides with the door from the outside. When the door is deformed toward the inner side of the vehicle body, the restricting means enters the movement locus of the link mechanism during the forward movement as described above, and the forward movement of the link mechanism is performed. regulate.

As described above, even when an impact force is applied to the door from the outside, the locked state of the door with respect to the vehicle body is prevented from being unexpectedly released, and the door opening is closed. It is kept as it is.

According to a second aspect of the present invention, the door includes an outer panel and an inner panel that face each other in the width direction of the vehicle body, extends along a back surface of the outer panel, and is located near the handlebar in a side view of the vehicle body. In a vehicle provided with a handle base attached to the outer panel so as to reinforce a portion of the outer panel,

The restricting means comprises a restricting projection formed on the link mechanism, and a portion of the handle base opposed to a movement trajectory of the restricting projection during the forward movement of the link mechanism in the width direction of the vehicle body. ing.

For this reason, the handle base portion that reinforces the portion of the outer panel located near the handle is used for the restricting means. Therefore, as described above, the locked state of the door with respect to the vehicle body is maintained. Preventing sudden release is achieved with a simpler configuration because of the use of the handle base.

According to a third aspect of the present invention, the handle base extends along the back surface of the outer panel, and a base body to which the outer panel is attached, and integrally projects from an outer edge of the base body toward the link mechanism. And a flange with

The handle base portion facing the movement trajectory of the regulating protrusion in the width direction of the vehicle body is constituted by the flange portion.

Therefore, as described above, since the flange projects toward the link mechanism, the projecting dimension of the restricting projection can be reduced, and in this respect, the locked state of the door to the vehicle body is suddenly released. This is achieved with a simpler configuration.

[Brief description of the drawings]

FIG. 1 is a sectional view taken along line 1-1 of FIG. 2;

FIG. 2 is a partial plan sectional view.

FIG. 3 is a view taken along line 3-3 in FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door 3 Outer panel 4 Inner panel 5 Space 7 Handle 8 One end 9 Other end 10 Pivot support 11 Grip part 12 Depression 21 Locking means 22 Link mechanism 32 Handle base 33 Base main body 34 Flange 38 Movement locus 39 Regulation means 40 Regulation Projection 41 Part A Forward rotation B Return rotation C Forward movement D Reverse movement F Impact force W Width direction

Claims (3)

[Claims] A door that opens and closes a door opening formed in a vehicle body extends along an outer surface of the door,
A rod-shaped handle pivotally supported by the door so as to be freely rotatable forward and backward; locking means for locking and unlocking the door with respect to the vehicle body; and interlocking the locking means with the handle A link mechanism for coupling, the link mechanism moves forward in conjunction with the forward rotation of the handle, and the locking means interlocks with the forward movement of the link mechanism, and the locking state of the locking means is changed. When the door is deformed toward the inner side of the vehicle body by receiving an impact force from the outside of the vehicle body when the door is released, the movement of the link mechanism during the forward movement is accompanied by the deformation of the door. A door lock release prevention mechanism in an automobile provided with a restricting means for entering the trajectory and restricting the forward movement of the link mechanism. 2. The vehicle according to claim 1, wherein the door includes an outer panel and an inner panel that face each other in a width direction of the vehicle body. In a motor vehicle provided with a handle base attached to the outer panel, the restricting means includes a restricting projection formed on the link mechanism and a movement locus of the restricting projection when the link mechanism moves forward in the width direction of the vehicle body. 2. The door unlocking prevention mechanism for a motor vehicle according to claim 1, wherein the mechanism comprises a portion of the handle base opposed to the handle base. 3. The handle base includes a base body extending along a back surface of the outer panel and attached to the outer panel, and a flange integrally projecting from an outer edge of the base body toward the link mechanism. 3. The door lock release prevention mechanism for an automobile according to claim 2, wherein the handle base portion facing the movement trajectory of the regulating protrusion in the width direction of the vehicle body is constituted by the flange portion.