JPH04100730A - Door structure of vehicle - Google Patents

Abstract

PURPOSE:To improve the strength of a door to the shock load or the like with out increasing the weight of a car body so much by disposing a reinforcing member for connecting a hinge fitting portion of a door main body and a door lock install portion to each other along an inner panel of the door main body. CONSTITUTION:A reinforcing member 4 extended in the longitudinal direction of a car body is disposed along the wall surface of a panel 1 in a door main body 3 formed by the inner panel 1 and an outer panel 2, the forward end flange portion 6 thereof is joined to a door hinge fitting portion 5 of the door main body 3, and the rear end flange portion 10 is joined to a door lock install portion of the main body 3 to reinforce the central portion of the door main body 3 extending over the longitudinal full length of the car body, whereby the shock load applied at the time of side collision of a vehicle is effectively supported by the member 4 so as to restrain the deformation of the main body 3. The head portion of a fitting bolt 21 is accomodated in a regulator fitting portion 12 formed by a projecting portion having a U-shaped section which is projected toward the outside of a car, and a bolt shaft is installed in such a manner as to be projected toward the outside of a car so as to increase the safety at the time of side collision.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an improvement in a vehicle door structure.

[Conventional technology]

Conventionally, as shown in, for example, Japanese Utility Model Application Publication No. 61-38218, a reinforcing member for reinforcing the waist portion of a door body consisting of an inner panel and an outer panel, that is, an opening for advancing and retracting window glass, is provided, and this reinforcing member is A vehicle door structure is known in which an extension part is provided protruding from the lower end of the door handle, and the extension part reinforces the installation part of the door handle.

[Problem to be solved by the invention]

The door structure with the above configuration has the advantage that the installation part of the door handle can be reinforced with a simple configuration, but on the other hand,
In order to further ensure sufficient strength of the door, when measures such as increasing the thickness of the inner panel and outer panel constituting the door body are taken, there is a problem in that the weight of the vehicle body increases.

The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to effectively improve the strength of a door against impact loads, etc. that are applied during a side collision of a vehicle, without significantly increasing the weight of the vehicle body. The purpose is to provide a vehicle door structure that allows for

[Means to solve the problem]

The present invention has a reinforcing member disposed inside a door body consisting of an inner panel and an outer panel and extending in the longitudinal direction of the vehicle body along the wall surface of the inner panel, and the front end of the reinforcing member is connected to the door body. The door hinge is attached to the rear end of the reinforcing member to the door lock installation part of the door body.

[For production]

According to the present invention having the above configuration, the reinforcing member is used to reinforce the space between the door hinge mounting portion of the door body and the door lock installation portion, thereby effectively increasing the strength of the door body against the impact load that is applied during a side collision of the vehicle. This will improve the results.

〔Example〕

1 to 3 show an embodiment of a vehicle door structure according to the present invention. This door structure has inner panel 1
The door body 3 includes a door body 3 made up of an outer panel 2 and a reinforcing member 4 disposed within the door body 3 and extending in the front-rear direction of the vehicle body along the wall surface of the inner panel 1.

A front end flange part 6 is provided at the front end of the reinforcing member 4 and is connected to a door hinge attachment part 5 made of the front wall part of the inner panel 1. Together with the hinge female member 8, the door hinge attachment is bolted to part 5. A rear end flange portion 10 is provided at the rear end portion of the reinforcing member 4 and is joined to a door lock installation portion 9 formed from the rear wall portion of the inner panel 1. This rear end flange portion 10 constitutes a door lock 11. The latch 12 is fixed to the door lock installation part 9 together with the latch 12.

The reinforcing member 4 also includes a spot weld 13 that is joined to the side wall surface of the inner panel 1 and a spot welded portion 13 that is joined to the side wall surface of the inner panel 1, and
The regulator mounting portion 17 to which the drive portion 15 and regulator guide 16 of No. 4 are attached has bent flange portions 18 and 19 formed on both upper and lower sides. The regulator mounting portion 17 is as shown in FIG.
It consists of a protrusion projecting outward from the vehicle and extending over substantially the entire length of the door body in the front-rear direction.A support bracket 20 for supporting the regulator guide 16 is attached to the outer wall surface of the protrusion. It is fixed with bolts 21. The mounting bolt 21 is installed such that its head is housed within the regulator mounting section 17 and the bolt shaft projects toward the outside of the vehicle.

The door having the above configuration has a front end connected to the front pillar 22 via the door hinge 7, is opened and closed by swinging about the hinge center of the door hinge 7, and has a latch 12 provided at the rear end. The striker 24 attached to the center pillar 23 is engaged with the striker 24 to be locked in the closed position. Furthermore, when an impact load acts on the side surface of the door during a side collision of the vehicle, this impact load is input to the reinforcing member 4 via the outer panel 1. The above-mentioned impact load is distributed to both the front and rear ends, and is transmitted to the front pillar 22 via the door hinge 7, and is also transmitted to the center pillar 23 via the door lock 11, where it is supported. Since the door hinge mounting portion 5 of the front pillar 22 and the door lock installation portion 9 of the center pillar 23 are constructed with higher rigidity than other parts, the impact load can be stably supported. Become.

In this way, a reinforcing member 4 extending in the longitudinal direction of the vehicle body along the wall surface of the inner panel 1 is disposed within the door body 3 consisting of the inner panel 1 and the outer panel 2, and the front end flange portion 6 of this reinforcing member 4 is provided. The door hinge of the door body 3 is attached to the part 5, and the rear end flange part 10 is joined to the door lock installation part 9 of the door body 3. Since the reinforcing member 4 is configured to be reinforced over the entire length of the door body 3, the impact load that is applied during a side collision of the vehicle can be effectively supported by the reinforcing member 4, and deformation of the door body 3 can be suppressed.

In addition, in the above embodiment, the regulator mounting part 17, which is a protrusion with a U-shaped cross section that protrudes toward the outside of the vehicle, accommodates the head of the bolt 21 and extends the bolt shaft toward the outside of the vehicle. Since the bolt shaft is installed so as to be tilted, there is an advantage that it is possible to prevent protrusions such as bolt shafts from protruding on the inside of the vehicle, thereby increasing safety in the event of the above-mentioned side collision.

Further, as shown in FIG. 3, a regulator mounting portion 17 having a U-shaped cross section extending in the front-rear direction of the vehicle body is formed on the reinforcing member 4, and bent flange portions 18 are formed on both upper and lower sides of the reinforcing member 4. .19, the rigidity of the reinforcing member 4 in the longitudinal direction is improved. Therefore, there is an advantage that the impact load acting in the longitudinal direction of the vehicle body can be effectively supported by the reinforcing member 4 at the time of a head-on collision or a rear-end collision of the vehicle.

In the above embodiment, the reinforcing member 4 covers the central part of the regulator guide 16, but as shown in FIG. It is also possible to have a structure in which parts 25 and 26 are provided. In this case, in the event of a side collision of the vehicle,
There is an advantage that deformation of the door including the window regulator 14 can be more effectively prevented.

Furthermore, in the above embodiment, the complicatedly shaped inner plate 1 is formed by drawing two plate materials, but as shown in FIG. , an inner panel is constituted by an upper reinforcement 28 constituting the earth wall section, a lower reinforcement 29 constituting the bottom wall section, and a rear panel 30 constituting the rear wall section, and the upper reinforcement 28 A structure may be adopted in which a stay 31 is attached between the regulator and the lower reinforcement 29. When the inner panel of the door body is divided into the above-mentioned members 27 to 30 in this way, the inner panel can be formed without performing complicated drawing processing, reducing the number of processing steps and manufacturing costs. It has the advantage of being inexpensive.

Further, as shown in FIG. 6, an impact parser 32 made of a pipe member and a bracket 33 for joining both ends of the impact parr 32 to the wall surface of the inner panel 1 are provided in the door body 3. For installation, the protrusion 34 formed on the bracket 33 is inserted into the end of the impact parr 32 and these are joined together, or as shown in FIG. 7, the recess 36 is formed on the bracket 35, and
It is also possible to have a structure in which the end of the impact parr 32 is inserted into the recess 36 and then joined together. In this way, when the impact parr 32 is attached to the door body 3 with both ends supported by the brackets 33 and 35, the impact parr 3
This has the advantage of preventing moisture from entering into the impact parr 32 and stably holding the end of the impact parr 32.

〔Effect of the invention〕

As explained above, in the present invention, the reinforcing member that connects the door hinge mounting part of the door body and the door lock installation part is disposed along the inner panel of the door body, so that the door body deforms during a side collision of the vehicle. This has the advantage of being able to effectively suppress this with a simple configuration.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of the vehicle door structure according to the present invention, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, and FIG.
4 is a front view showing another embodiment of the present invention, FIG. 5 is a perspective view showing another specific example of the door body, and FIG. 6 is an impact inside the door body. FIG. 7 is a sectional view showing another example of how the impact parr is installed. 1... Inner panel, 2... Outer panel, 3...
・Door body, 4... Reinforcing member, 5... Door hinge mounting part, 6... Front end flange part (front end of reinforcing member)
9... Door lock installation part, 10... Rear end flange part (rear end part of reinforcing member). Patent applicant Mazda Co., Ltd. Agent
Patent Attorney Etsushi Kotani
Long 1) Positive amount Same as Takao Ito○

Claims (1)

[Claims] 1. A reinforcing member is disposed within the door body consisting of an inner panel and an outer panel and extends in the longitudinal direction of the vehicle body along the wall surface of the inner panel, and the front end of this reinforcing member is connected to the door hinge of the door body. A vehicle door structure characterized in that the reinforcing member is joined to a mounting portion and a rear end portion of the reinforcing member is joined to a door lock installation portion of a door body.