JPH0332406Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an automobile door structure.

(Prior art) Automobile doors are generally constructed by attaching a door sash with a U-shaped cross section for guiding and supporting the door glass to the upper part of the door body, which is constructed by mutually bonding an outer panel and an inner panel. and
Moreover, in that case, the front end of the door sash is usually joined and fixed to the inner panel of the door body (see, for example, Japanese Utility Model Application No. 56-88885).

By the way, when a car is running, a force is exerted that tries to pull the door glass part out to the outside of the car due to the suction effect of the running wind flowing along the door glass, but generally the front end of the door sash has its upper part tilted backwards towards the rear of the car body. Because of the inclined structure, when the above-mentioned suction force is applied, a twisting force is applied to the lower front end of the door sash, which is the attachment part to the door body. In this case, the door sash itself has a relatively rigid structure against torsion, so if the supporting part of the door sash (i.e., the door body side) has sufficient rigidity, torsional deformation of the door sash will hardly occur. becomes.

However, in the case of a structure in which the front end of the door sash is joined to the inner panel of the door body, as in the above-mentioned known example, the inner panel itself is usually
It is constructed from an ultra-thin steel plate of about 0.6 mm and has relatively low rigidity, so it cannot sufficiently support the torsional force applied to the door sash and is easily deformed by this. As a result, torsional deformation occurs in the door sash,
There was a problem in that the watertightness between the door sash and the vehicle body was impaired.

(Purpose of the invention) The present invention is an attempt to solve the problems pointed out in the above-mentioned section of the prior art, and by increasing the rigidity of the inner panel portion of the door body to which the door sash is joined, torsional deformation of the door sash is prevented. The purpose is to ensure a high degree of watertightness between the vehicle body and door sash by suppressing water as much as possible.

(Means for Achieving the Object) As a means for achieving the above object, the present invention provides a door body composed of an inner panel and an outer panel that are joined to each other, and a front portion of the inner panel of the door body. A hinge member is formed by mutually supporting a door having a door sash joined and fixed to an inner surface and a rear inner surface, and a door side piece fixed to the door body side and a vehicle body side piece fixed to the vehicle body side. In an automobile door structure that is hingedly connected to a vehicle body through a door body, a front end surface of an inner panel located at the front part of the door body is formed into a substantially flat plate shape, and a portion of the door sash corresponding to the front end surface of the inner panel includes: The extension part is formed of a substantially flat plate body extending downward from the upper end of the front part of the door body toward the inside of the door body, and is joined to the inner surface side of the front end face of the inner panel in an abutting state; The door-side piece of the hinge member is placed on the outer surface of the front end surface of the inner panel, and the front end surface of the inner panel is sandwiched between the hinge member and the door sash extension, and a part of the door-side piece is placed further than the door sash extension. It is characterized by being joined while extending to the outside of the vehicle.

(Function) In the present invention, the following effects can be obtained by the above-mentioned means.

The door-side piece of the hinge member is attached to the outer surface of the front end surface of the inner panel to which the door sash extension is joined to the inner surface thereof, so that the front end surface of the inner panel is sandwiched between it and a portion of the door sash extension closer to the outside of the vehicle. Therefore, the rigidity of the part of the front end of the inner panel corresponding to the side of the door sash extension, that is, the part of the front end of the inner panel that is most easily deformed by the torsional force acting on the door sash, is focused. As a result, deformation of the front end surface of the interior panel due to the above-mentioned torsional force, and by extension, torsional deformation of the door sash, can be more effectively suppressed.

In addition, since the extension of the door sash, both of which are substantially flat, is joined to the front end surface of the inner panel of the door body in an abutting state, and the rigidity of the abutting portion is increased, the torsional force applied to the door sash is reduced. It is directly and reliably transmitted from the door sash extension to the front end surface of the inner panel and supported there, thereby suppressing torsional deformation of the door sash as much as possible.

Since a part of the door-side piece of the hinge member is attached in a state extending to the outside of the vehicle beyond the door sash extension, the door-side piece is arranged so as to overlap the entire area with the door sash extension. Compared to the case where the door is opened and closed, the amount of displacement of the front end of the door toward the outside of the vehicle is smaller, and the distance between the front end of the door and the vehicle body when the door is closed can be reduced accordingly.

(Embodiment) Hereinafter, a preferred embodiment of the present invention will be described with reference to FIGS. 1 to 3.

FIG. 1 shows a main part of an automobile door 1 having a door structure according to an embodiment of the present invention, FIG. 2 shows a vertical cross-sectional view of a main part of this door 1, and FIG. The main parts of the car Z equipped with are shown.

As shown in FIGS. 1 and 2, this door 1 includes a door body 2, which is constructed by mutually joining an inner panel 21 located on the inside of the vehicle and an outer panel 22 located on the outside of the vehicle; It has a door sash 3, which will be described in detail later, which is welded to the upper part.

The inner panel 21 of the door body 2 has both ends in the longitudinal direction of the vehicle (rear end not shown) bent into a substantially square shape, and both ends are bent into an approximately flat plate shape. The inner panel 21 is welded to the
A space 8 (see FIG. 2) is formed between the door glass 7 and the outer panel 22 for accommodating the door glass 7, a lifting mechanism (not shown), etc. for the door glass 7.

The door sash 3 is for guiding and supporting the door glass 7, and is formed by bending a thin steel plate so as to have a substantially U-shaped cross section as shown in FIG. This door sash 3 has a front end 3a
and rear end portion 3b, respectively, to the front portion 2a of the door body 2.
and the rear part 2b are integrated with the door body 2 by welding to the inner surface of the front end surface 21a and the inner surface of the rear end surface (the rear end surface is not shown) of the inner panel 21, respectively. Particularly in this embodiment, the door sash 3
When attaching the front end portion 3a of the door sash 3 to the door body 2, the front end portion 3a of the door sash 3 is attached downwardly (space 8
A substantially flat extension part 32 of an appropriate length extending inward) is formed, and the extension part 32 and the inner panel 2 are connected to each other.
The door sash front end 3a and the door main body 2 are integrally joined by welding and joining the front end surface 21a of the door sash 1 to the inner surface of the door body 2 in close contact with each other.

In this embodiment, a reinforcing plate 33 is interposed between the inner panel front end surface 21a and the door sash extension part 32, and this reinforcing plate 33 is formed in a substantially flat plate shape and extends from the inner panel front end surface 21a. Since the door sash extension 32 is disposed in close contact with the inner panel front end surface 21a, the door sash extension 32 is directly joined in close contact with the inner panel front end surface 21a regardless of the presence of the reinforcing plate 33. Therefore, this door sash extension 3
The torsional force applied to the inner panel 2 is directly transmitted to the front end surface 21a of the inner panel and is supported there.

The door 1 configured as described above is provided with a pair of hinge members 4, 4 disposed on the front end surface of the door 1, that is, on the outer surface side of the front end surface 21a of the inner panel 21, and at an appropriate distance from each other in the vertical direction. It is hinged to the vehicle body 5 so that it can be opened and closed.

As shown in FIGS. 1 and 2, the hinge member 4 includes a vehicle body side piece 41 that is fastened and fixed to the vehicle body 5 by fixing bolts 46, 46, and a door body 2 of the door 1.
and a door side piece 42 which is fastened and fixed by fixing bolts 47, 47, are mutually hingedly connected by a connecting pin 43. Particularly in this embodiment, this hinge member 4 When attaching the door side piece 42 to the door body 2, the approximately flat mounting portions 42a, 42a are partially welded to the inner surface of the inner panel front end surface 21a with the inner panel front end surface 21a interposed therebetween. The door-side piece 42 is offset toward the outside of the vehicle from the door sash extension 32 so that the extension 32 of the door sash 3 overlaps with the outside portion of the door sash 3 by an appropriate dimension S. Therefore, in this state, a part of the attachment part 42a of the door side piece 42 of the hinge member 4 is attached to the door sash extension part 3.
2 and extends toward the outside of the vehicle.

In this way, the extension portion 32 of the door sash 3 is welded to the inner surface of the front end surface 21a of the inner panel.
The mounting portion 42a of the door-side piece 42 of the hinge member 4 which is fastened and fixed to the outer surface side of the inner panel is sandwiched between the mounting portion 42a and the front end surface 21a of the inner panel, and a portion of the mounting portion 42a extends further to the outside of the vehicle than the door sash extension portion 32. Then, the mounting portion 42a of the hinge member 4 acts as a reinforcing member for the front end surface 21a of the inner panel and the joint portion of the door sash.

In this case, the mounting portion 42a of the hinge member 4 is deviated toward the outside of the vehicle with respect to the door sash extension 32, and overlaps the door sash extension 32 by an appropriate dimension at a position closer to the outside of the vehicle. The front end surface 2 of the inner panel is
The parts 1a corresponding to the sides of the door sash extension 32, which are the most deformable, will be intensively reinforced. Therefore, the rigidity of the door sash joint is more effectively improved, and as a result, torsional deformation of the door sash 3 is suppressed as much as possible.

Note that the door structure of this embodiment increases the rigidity of the inner panel 21 of the door body 2 by using the door-side mounting portion 42a of the hinge member 4, which is naturally installed on the door body 2 for its function. Since the torsional deformation of the door sash 3 is suppressed as much as possible, there is no need to provide a dedicated reinforcing member to increase the rigidity of the inner panel 21, and the torsional deformation of the door sash 3 is suppressed as much as possible. This has the advantage that this can be achieved without increasing the number of parts or assembly man-hours.

Furthermore, in this embodiment, the hinge members 4 are arranged offset from each other so that a part of the mounting portion 42a of the door side piece extends further to the outside of the vehicle than the door sash extension portion 32. Therefore, as shown in FIG. 2, the front end 2c of the door body 2
The amount of displacement caused by opening and closing the door can be further reduced. This means that the distance (t) between the front end 2c of the door body and the open end 9 of the vehicle body when the door is closed can be further reduced, which can contribute to improving the design of the vehicle body.

(Effect of the invention) As is clear from the above description, the automobile door structure of the invention consists of an extension of the door sash welded to the inner surface of the front end surface of the inner panel constituting the door body, and an outer surface of the inner panel. and a door-side piece of a hinge member fixed to the side, with a part of the door-side piece extending beyond the door sash extension to the outside of the vehicle, and sandwiching the inner panel between the two;
Moreover, by joining the door sash extension to the front end surface of the inner panel in an abutting state,
Since the door-side piece of the hinge member acts more effectively as a reinforcing member for the joint portion of the door sash extension on the front end face of the inner panel to increase the rigidity of the joint portion, twisting of the door sash portion is prevented. Deformation is suppressed as effectively as possible, and as a result, the practical effect of maintaining good watertightness between the door sash and the vehicle body over a long period of time can be obtained.

Furthermore, by arranging the door side piece of the hinge member at a position closer to the exterior of the door body, the distance between the door and the vehicle body when the door is closed is made as small as possible. This also has the practical effect of improving the design of the vehicle body, which in turn contributes to increasing the commercial value of the vehicle.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the main parts of an automobile door having a door structure according to an embodiment of the present invention, Fig. 2 is a cross-sectional view of Fig. 1, and Fig. 3 is a view of the door shown in Fig. 1 installed. FIG. 1 is a perspective view of essential parts of an automobile. DESCRIPTION OF SYMBOLS 1... Door, 2... Door body, 3... Door sash, 4... Hinge member, 5... Vehicle body, 21...
Inner panel, 22... Outer panel, 32...
Extension part, 42...Door side piece of hinge member.

Claims (1)

[Scope of utility model registration request] A door having a door body composed of an inner panel and an outer panel that are joined to each other, and a door sash that is joined and fixed to the front inner surface and the rear inner surface of the inner panel of the door body, respectively, is fixed to the door main body side. An automobile door structure that is hinged to the vehicle body through a hinge member that mutually supports a door side piece fixed to the vehicle body and a vehicle body side piece fixed to the vehicle body, the door structure being hinged to the vehicle body, and located at the front part of the door body. A front end surface of the inner panel is formed into a substantially flat plate shape, and a substantially flat plate is provided at a portion of the door sash corresponding to the front end surface of the inner panel, extending downward from the front upper end of the door body toward the inside of the door body. an extension portion formed of a body and joined to the inner surface of the front end surface of the inner panel in an abutting state, while the door side piece of the hinge member is formed on the outer surface side of the front end surface of the inner panel; An automobile characterized in that the front end surface of the inner panel is sandwiched between the door sash extension part and a part of the door side piece is joined to the outside of the vehicle than the door sash extension part. door structure.