JP5640356B2 - Passenger car doors - Google Patents

Description

  The present invention is for a passenger car having a configuration in which a door lock mechanism is locked by an operation of closing a door opening of a passenger car, and a lock operation is released by a pulling operation of a door handle being transmitted to the door lock mechanism via the transmission mechanism. About the door.

A front door for a passenger car is generally composed of an outer panel 101 to which a door handle 107 is attached and a panel fitted from the inside to the outer panel 101 as shown in the schematic plan sectional view of FIG. The inner panel 103 to which the door lock mechanism 105 (see FIG. 8B) is attached, and the transmission mechanism 106 that transmits the pulling operation of the door handle 107 to the door lock mechanism 105 are provided. Further, on the inner side of the outer panel 101, for example, as shown in FIG. 3 of Patent Document 1, a strip-shaped reinforcement that reinforces the outer panel 101 along the lower side of a window (not shown) provided in the front door. 109 is fixed.
With the above configuration, when the door handle 107 is pulled, the flange 106k of the transmission mechanism 106 rotates counterclockwise in FIG. 8B, and the lock release lever 105t of the door lock mechanism 105 is pushed down via the vertical axis 106r. . Thereby, the lock operation of the door lock mechanism is released, and the door can be opened.
Further, by closing the door opening of the passenger car with the front door, the door lock mechanism 105 is automatically locked.

JP 2004-148878 A

  However, in the above-described front door, the strip-shaped reinforcement 109 that reinforces the outer panel 101 is generally set to have substantially the same strength in the longitudinal direction. For this reason, for example, when a passenger car collides forward and a collision load F is applied to the front door from the front (see FIG. 8A), the attachment position of the door handle 107 of the outer panel 101 and its vicinity are stretched outward. It may be deformed to come out. When the door handle 107 is attached so that the attachment position and its vicinity project outward, the distance from the door handle 107 to the lock release lever 105t increases as indicated by the two-dot chain line in FIG. 8B. Accordingly, when the longitudinal axis 106r of the transmission mechanism 106 is separated from the lock release lever 105t, the pulling operation of the door handle 107 is not transmitted to the lock release lever 105t. As a result, when the front door is deformed by a collision load from the front, the door handle 107 may not open the front door.

  The present invention has been made to solve the above-described problems, and the problem to be solved by the present invention is to pull the door handle even if the outer panel of the door is deformed so as to project outward in the event of a collision. To be able to open the door.

The above-described problems are solved by the inventions of the claims.
The invention according to claim 1 is an outer panel in which a door handle is attached to the lower side of a window, an inner panel in which a door lock mechanism is attached to the outer panel, and an inner panel to which the door handle is attached. A transmission mechanism that transmits a pulling operation to the door lock mechanism, the door lock mechanism is locked by an operation of closing a door opening of a passenger car, and the door handle pull operation is performed via the transmission mechanism. A door for a passenger car having a configuration in which the locking operation is released by being transmitted to a mechanism, wherein a reinforcement that reinforces the outer panel from the inside along the lower side of the window is fixed to the outer panel, Reinforcement has one end in the longitudinal direction of the reinforcement in the vicinity of the door handle And the other end in the longitudinal direction is disposed away from the door handle, and the reinforcement has a position of a door handle mounting position of the outer panel when receiving a collision load in a direction along the reinforcement. The other end away from the door handle is configured to be more easily deformed than other positions so that deformation can be suppressed, and the reinforcement is formed in a band plate shape. The end portion has a flat plate shape, the middle portion is formed in a groove shape having a substantially U-shaped cross section, and the flange portion is formed at the upper and lower ends so as to extend in the longitudinal direction .

According to the present invention, in the reinforcement for reinforcing the outer panel from the inside along the lower side of the window, one end portion in the longitudinal direction of the reinforcement is disposed in the vicinity of the door handle, and the other end portion in the longitudinal direction is the door handle. The other end portion away from the door handle is configured to be more easily deformed than other positions. For this reason, when receiving a collision load in a direction along the reinforcement, the outer panel is greatly deformed outward at a position away from the door handle, and deformation of the door handle mounting position is suppressed. Therefore, the position of the door handle with respect to the door lock mechanism hardly changes, and the pulling operation of the door handle can be transmitted to the door lock mechanism by the transmission mechanism. That is, even if the outer panel of the door is deformed so as to project outward due to a collision, the door can be pulled to open the door .

According to the invention of claim 2 , the reinforcement is formed in a band plate shape, one end portion in the longitudinal direction of the reinforcement is disposed in the vicinity of the door handle, and the other end portion in the longitudinal direction is away from the door handle. It is arranged at a distant position, a through hole is formed in the other end portion in the longitudinal direction of the reinforcement, and the strength of the other end portion is set lower than the strength of other positions. .
That is, by forming a through hole in the other end portion of the reinforcement, the strength of the other end portion of the reinforcement can be easily adjusted because the strength of the other end portion is made lower than that of the other position.

According to the invention of claim 3 , the reinforcement is formed in a band plate shape, one end portion in the longitudinal direction of the reinforcement is disposed in the vicinity of the door handle, and the other end portion in the longitudinal direction is away from the door handle. It is arranged at a distant position, a fold line is formed at the other end in the longitudinal direction of the reinforcement, and the strength of the other end is set lower than the strength of the other position. .
That is, by forming a fold line at the other end portion of the reinforcement, the strength of the other end portion of the reinforcement can be easily adjusted because the strength of the other end portion is made lower than the strength of the one end portion.

According to the invention of claim 4, reinforcement is formed in a band plate shape, its one end portion of the reinforcement is arranged in the vicinity of the door handle, it is arranged at a position other end remote from the door handle and is characterized in that the one end portion of the reinforcement is reinforced so that the intensity is greater than the other end.
For this reason, the deformation | transformation of the door handle attachment position of an outer panel can be suppressed in the state which ensured the whole intensity | strength of the reinforcement.

  According to the present invention, even if the outer panel of the door is deformed so as to project outward due to a collision of a passenger car, the door handle can be pulled to open the door.

1 is an outline view of a front door for a passenger car according to Embodiment 1 of the present invention. It is a front view showing the inner side of the front door for passenger cars which concerns on Embodiment 1 of this invention. FIG. 3 is a cross-sectional view taken along arrow III-III in FIG. 1. FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 1. It is a perspective view (A figure) and (B figure) of the outer reinforcement which reinforces the outer panel of a front door from the inner side. It is a plane sectional view showing typically a mode of deformation of a front door at the time of frontal collision of a passenger car. It is a schematic diagram showing the door opening / closing mechanism of a front door. FIG. 5 is a plan sectional view (A view) schematically showing a state of deformation of a conventional front door during a frontal collision of a passenger car, and a schematic view (B view) showing a door opening / closing mechanism of the front door.

[Embodiment 1]
Hereinafter, the front door of the passenger car according to the first embodiment of the present invention will be described with reference to FIGS.
Note that front, rear, left, right, and top and bottom in the figure correspond to front, back, left, right, and top and bottom of the passenger car to which the front door is attached.

<About the outline of the front door 10>
As shown in FIG. 1, the front door 10 of a passenger car is composed of a door main body portion 10m and a window frame portion 10w, and support pieces 12a and 12b for supporting the front door 10 on the front end portion of the door main body portion 10m. Are provided above and below. And the upper and lower support pieces 12a, 12b of the front door 10 are connected to the body of the passenger car in a state of being horizontally rotatable by a hinge mechanism (not shown). That is, the front door 10 is attached to the body of the passenger car so as to be horizontally rotatable by the hinge mechanism. Here, since the left and right front doors 10 of the passenger car are symmetrical and equal in configuration, the left front door 10 will be described as a representative, and the description of the right front door 10 will be omitted.

  The front door 10 includes an outer panel 16 and an inner panel 15, and the peripheral edge of the inner panel 15 and the peripheral edge of the outer panel 16 are joined together by hemming or the like as shown in FIG. As shown in FIGS. 3 and 4, a space S is formed between the inner panel 15 and the outer panel 16 in the door main body portion 10 m of the front door 10. As shown, the elevating mechanism 13y of the window glass 13, the impact beam 14, the door lock mechanism 22 of the door opening / closing mechanism 20, the transmission mechanism 24 (see FIG. 7), and the like are housed.

<About the door opening / closing mechanism 20>
The door opening / closing mechanism 20 is a mechanism for opening and closing the front door 10 and includes a door lock mechanism 22, a door handle 25, and a transmission mechanism 24 as shown in FIG.
When the front door 10 closes a door opening (not shown) of the passenger car, the door lock mechanism 22 connects the free end of the front door 10 (rear end) to the body of the passenger car. 10 is a mechanism for locking 10 to a closed state. As shown in FIG. 7, the door lock mechanism 22 is attached to the rear end portion of the inner panel 15, and includes a lock release lever 22 f configured to be rotatable up and down. The lock release lever 22f is a lever for releasing the lock operation of the door lock mechanism 22, and the lock operation of the door lock mechanism 22 is performed by rotating downward (right rotation in FIG. 7) from the horizontal lock position. It is configured so that it can be released. Here, the lock release lever 22f is held in the locked position by a spring force. As will be described later, when the receiving surface 22u of the lock release lever 22f is pushed by the longitudinal axis 24j of the transmission mechanism 24, the lock release lever 22f resists the spring force. Then, it turns downward (turns right).

The door handle 25 is a member that is pulled when the front door 10 is opened. As shown in FIG. 1, the door handle 25 is attached to the upper rear end of the outer panel 16 constituting the door main body portion 10m.
The transmission mechanism 24 is a mechanism for transmitting the pulling operation of the door handle 25 to the lock release lever 22f of the door lock mechanism 22, and as shown in FIG. 7, is constituted by a substantially L-shaped flange 24k and the above-described vertical axis 24j. Has been. The flange portion 24k is attached to the back side of the outer panel 16 in a state where it can be turned up and down while being connected to the door handle 25. The collar portion 24k is configured to rotate downward (leftward rotation in FIG. 7) when the door handle 25 is pulled, and the upper end portion of the vertical axis 24j is at the pivot end of the collar portion 24k. They are connected so that they can rotate relative to each other. The lower end of the vertical axis 24j is in contact with the receiving surface 22u of the lock release lever 22f.
With the above configuration, when the door handle 25 is pulled, the flange 24k of the transmission mechanism 24 rotates to the left in FIG. 7, and the vertical axis 24j is pushed down. Thereby, the vertical axis 24j pushes down the lock release lever 22f of the door lock mechanism 22, and the lock operation of the door lock mechanism 22 is released. As a result, the front door 10 can be opened.

<Outer panel reinforcement 30>
As shown in FIG. 3, a belt line reinforcement 15r is fixed to the inner panel 15 of the front door 10 by welding or the like along the upper side (lower side of the window) of the door body portion 10m. Also, the outer panel reinforcement 30 is fixed to the outer panel 16 by welding or the like along the upper side (lower side of the window) of the door main body portion 10m.
As shown in FIG. 2 and FIG. 5 (A), the outer panel reinforcement 30 is a panel formed in a strip shape, and has a length dimension substantially equal to the distance from the front end portion to the rear end portion of the door main body portion 10m. Is set. The outer panel reinforcement 30 has a front end portion 32 and a rear end portion 34 formed in a flat plate shape, and an intermediate portion 35 between the front end portion 32 and the rear end portion 34 is formed in a groove shape having a substantially U-shaped cross section. ing. And the flange part 35f is formed in the width direction both sides (upper and lower ends) of the intermediate part 35 so that it may extend in a longitudinal direction.

As shown in FIG. 3, the outer panel reinforcement 30 has a flange portion 35 f of the intermediate portion 35 fixed to the back surface of the outer panel 16. Then, as shown in the plane sectional view of FIG. 4, the joining surface 32s of the front end portion 32 and the joining surface 34s of the rear end portion 34 of the outer panel reinforcement 30 are respectively connected to the front end portion 15f and the rear end portion 15b of the inner panel 15. Fixed. In FIG. 4, the belt line reinforcement 15r is omitted.
In the intermediate part 35 of the outer panel reinforcement 30, long holes 35h and round holes 35e are formed at predetermined intervals in the longitudinal direction at positions corresponding to the bottoms of the grooves. Further, the front end portion 32 of the outer panel reinforcement 30 is formed with a strength adjusting long hole 32x so that the strength of the front end portion 32 is sufficiently lower than that of the intermediate portion 35 and the rear end portion 34.
That is, the outer panel reinforcement 30 corresponds to the reinforcement of the present invention, and the front end portion 32 of the outer panel reinforcement 30 corresponds to the other end portion away from the door handle in the present invention. The strength adjusting long hole 32x corresponds to the through hole of the present invention.

<About the function of the front door 10>
As shown in FIG. 6, when the passenger vehicle has an offset collision and a collision load F is applied to the front door 10 from the front, the front door 10 is crushed in the front-rear direction and the outer panel 16 is deformed so as to project outward. And Here, as described above, the outer panel reinforcement 30 is set so that the strength of the front end portion 32 is sufficiently lower than the intermediate portion 35 and the rear end portion 34 by the action of the strength adjusting long hole 32x. For this reason, when the outer panel 16 is deformed so as to project outward, the front part is mainly deformed and the rear part is hardly deformed, as shown in FIG. That is, the rear part of the outer panel 16 to which the door handle 25 is attached is hardly deformed. For this reason, the position of the door handle 25 with respect to the door lock mechanism 22 hardly changes. Therefore, even if the front door 10 is deformed at the time of an offset collision, the pulling operation of the door handle 25 is transmitted to the door lock mechanism 22 by the transmission mechanism 24. Thereby, the front handle 10 can be opened by pulling the door handle 25.

<Advantages of Front Door 10 According to this Embodiment>
According to the front door 10 according to the present embodiment, the outer panel reinforcement 30 that reinforces the outer panel 16 from the inside along the lower side of the window is configured such that the position away from the door handle 25 (front end) is more easily deformed than the other positions. Has been. For this reason, at the time of a front collision, the outer part of the outer panel 16 is greatly deformed outwardly from the door handle 25, and deformation of the door handle mounting position (rear part) is suppressed. Therefore, the position of the door handle 25 with respect to the door lock mechanism 22 hardly changes, and the pulling operation of the door handle 25 can be transmitted to the door lock mechanism 22 by the transmission mechanism 24. That is, the front door 10 can be opened by pulling the door handle 25 even if the outer panel 16 of the front door 10 is deformed so as to project outward due to the front collision.
Further, the front end of the outer panel reinforcement 30 is formed by forming a strength adjusting slot 32x in the front end 32 of the outer panel reinforcement 30 so that the strength of the front end 32 is lower than that of the intermediate portion 35 and the rear end 34. The strength adjustment of the portion 32 is facilitated.

<Example of change>
In addition, this invention is not limited to the said embodiment, The change in the range which does not deviate from the summary of this invention is possible. For example, in this embodiment, as shown in FIG. 5 (A), the strength of the front end portion 32 is increased by forming the strength adjusting elongated hole 32x in the front end portion 32 of the outer panel reinforcement 30 so that the intermediate portion 35 and the rear end portion. An example of lowering than 34 was shown. However, instead of forming the strength adjusting elongated hole 32x in the front end portion 32, for example, a bending line or the like is formed in the front end portion 32 so that the strength of the front end portion 32 is lower than that of the intermediate portion 35 and the rear end portion 34. It is also possible.
Further, as shown in FIG. 5 (B), without forming the strength adjusting elongated hole 32x in the front end portion 32, for example, the width dimension or thickness dimension of the rear end portion 34 of the outer panel reinforcement 30 is increased, It is also possible to improve the strength of the rear end 34. The rear end portion 34 can be reinforced with a reinforcing material.
In the present embodiment, an example in which the present invention is applied to the front door 10 has been described. However, for example, the present invention can also be applied to a rear door.

10 .... Front door (door)
15 ... Inner panel 16 ... Outer panel 20 ... Door opening / closing mechanism 22 ... Door lock mechanism 22f ... Lock release lever 24 ... Transmission mechanism 25 ... Door handle 30 ... Outer panel reinforcement (reinforcement)
32 ... Front end (other end)
32x ・ ・ ・ Strength adjustment slot (through hole)

Claims (4)

An outer panel with a door handle attached to the lower side of the window, an inner panel fitted with the outer panel from the inside, and a door lock mechanism attached thereto, and the door lock mechanism for pulling the door handle The door locking mechanism is locked by closing the door opening of the passenger car, and the door handle pulling operation is transmitted to the door locking mechanism via the transmission mechanism. A door for a passenger car configured to release movement,
Reinforcement that reinforces the outer panel from the inside along the lower side of the window is fixed to the outer panel,
In the reinforcement, one end of the reinforcement in the longitudinal direction is disposed in the vicinity of the door handle, and the other end in the longitudinal direction is disposed at a position away from the door handle.
In the reinforcement, the other end away from the door handle is deformed more than the other position so that the deformation of the door handle mounting position of the outer panel is suppressed when receiving a collision load in the direction along the reinforcement. Is easy to do ,
The reinforcement is formed in a band plate shape, the other end portion away from the door handle is a flat plate shape, the middle portion is formed in a groove shape having a substantially U-shaped cross section, and the flange portion is long at the upper and lower ends. A door for a passenger car characterized by being formed to extend in a direction . A passenger car door according to claim 1,
A through-hole is formed in the other end portion in the longitudinal direction of the reinforcement, and the strength of the other end portion is set lower than the strength of other positions . A passenger car door according to claim 1 ,
A folding door is formed at the other end in the longitudinal direction of the reinforcement, and the strength at the other end is set lower than the strength at other positions. A passenger car door according to claim 1 ,
A door for a passenger car, wherein one end portion in the longitudinal direction of the reinforcement is reinforced so as to be stronger than the other end portion .

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