JP2018079817A - Vehicular door structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of components of a reinforcement member to reduce manufacturing costs while securing rigidity of a door main body and simplify an assembling step so that work costs can be reduced.SOLUTION: The vehicular door structure comprises a door main body and a reinforcement member. The door main body has a belt line part in which a storage space for a window glass is secured between an outer panel and an inner panel and the window glass is protruded and retracted. The reinforcement member is formed to extend vertically from a front edge part to a rear edge part in a region including the belt line part in the outer panel and from the front edge part of the belt line part toward a door trail end part as approaching the door trail end part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle door structure that is openably and closably connected to a vehicle body such as a truck via a door hinge.

  A vehicle door connected to a vehicle body such as a truck (specifically, a cab or the like) via a door hinge so as to be opened and closed includes a door body having an outer panel and an inner panel. The door body is configured to have a belt line portion in which a window glass storage space is secured between the outer panel and the inner panel, and the window glass projects and sinks.

  In addition, since the vehicle door is required not only for durability against opening and closing operations but also for sufficient shock absorption in case of an unexpected situation such as a collision, it serves as a reinforcing member between the outer panel and the inner panel. A side beam is provided (see, for example, Patent Document 1). This side beam is arranged so as to span between the door pillar of the door body and the latch reinforcing member. The door pillar and the latch reinforcing member are used for attaching the door hinge and the door latch.

  Here, a conventional vehicle door structure will be described in detail with reference to FIG. FIG. 2 is a block diagram schematically showing a conventional vehicle door structure 1 ′. FIG. 2 shows a state in which various reinforcements 8a to 8d are disposed as reinforcing members on the outer surface of the inner panel 2 in the vehicle door body 1 (in FIG. 2, the inner panel 2). The outer panel provided on the front side is omitted for easy understanding of the structure of the reinforcing member 2 above). Here, the inner panel 2 has a window frame 3 at an upper portion, and a bottom portion of the window frame 3 is a belt line portion 4 into which a window glass (not shown) projects and sinks. A door pillar 5 is attached to the front portion of the inner panel 2. The door pillar 5 extends vertically along the front edge of the inner panel 2, and the upper and lower door hinges 6, 7 are attached to the door pillar 5. Accordingly, the vehicle door (door body 1) is connected to the vehicle body (cab body) (not shown) via the door hinges 6 and 7 so as to be freely opened and closed.

Further, the door body 1 includes a belt line reinforcement 8a extending from the front edge portion of the belt line portion 4 along the rear edge portion, a door panel reinforcement 8b extending downward from the belt line reinforcement 8a, and a belt on one end side. A lower reinforcement 8c connected to the other end of the door panel reinforcement 8b connected to the line reinforcement 8a and connected to an outer panel (not shown), a door handle and a door latch (not shown) are mounted. A door handle reinforcement 8d is provided as a latch reinforcement member for reinforcement. In the inner panel 2, the side beam 9 extends between the door pillar 5 and the door bottom portion of the door body 1 so as to be substantially parallel to the belt line reinforcement 8 a below the belt line reinforcement 8 a of the outer panel. Has been placed.
As described above, the various reinforcements 8a to 8d are disposed on the inner panel 2 side of the outer panel, so that the rigidity of the door body 1 is secured more firmly.

JP 2004-17742 A

  However, in the case of the conventional vehicle door structure 1 ′ as described above, reinforcements such as various reinforcements 8 a to 8 d and side beams 9 are applied to the outer panel and the inner panel 2 in order to maintain the rigidity of the door body 1. Since these are appropriately provided at sites where reinforcement is required, there is a problem that the number of parts is increased, and as a result, the manufacturing cost increases. In particular, the various reinforcements 8a to 8d are made of separate members, and these are joined using a technique such as spot welding. Therefore, the number of spot welds for joining these reinforcing members increases, and the assembly is performed. Since the process becomes complicated, there is also a problem that the operation cost increases.

  At least one embodiment of the present invention has been made in view of the above-mentioned circumstances, and while ensuring the rigidity of the door body, the number of parts of the reinforcing member is reduced to reduce the manufacturing cost, and the assembly process is simplified. It is an object of the present invention to provide a vehicle door structure that can reduce work costs.

  In order to solve the above-described problem, a vehicle door structure according to at least one embodiment of the present invention is a belt in which a storage space for a window glass is secured between an outer panel and an inner panel, and the window glass projects and sinks. A door body having a line portion, and in a region including the belt line portion of the outer panel, from the front edge portion to the rear edge portion, from the front edge portion of the belt line portion toward the door bottom portion, and to the door bottom portion. And a reinforcing member formed so as to extend vertically as approaching.

According to this configuration, in the region corresponding to the belt line in the inner panel constituting the door body, in the region extending from the front edge to the door butt, from the front edge of the belt line to the door butt and Since it is provided with a reinforcing member formed so as to extend vertically as it approaches the door bottom part, the number of parts of the reinforcing member can be reduced as compared with the conventional vehicle door structure while maintaining the rigidity of the door body, and it is manufactured. Cost can be reduced. Further, since the number of parts of the reinforcing member is reduced, the number of spot welding locations for joining the reinforcing members as in the conventional case is reduced, and the assembling process can be simplified.
Thus, while ensuring the rigidity of the door body, the number of parts of the reinforcing member can be reduced, the manufacturing cost can be reduced, and the vehicle door structure can be provided that can simplify the assembly process and reduce the work cost. .

It is a lineblock diagram showing roughly the door structure for vehicles concerning at least one embodiment of the present invention. It is a block diagram which shows the conventional vehicle door structure schematically.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings. It should be noted that the materials, shapes, and relative arrangements of the components described in the following embodiments are not intended to limit the scope of the present invention only to specific examples unless otherwise specifically described. .
For example, in the following embodiments, a case where the present invention is applied to a vehicle body of a cab portion of a cargo vehicle such as a truck will be described as a vehicle body having the vehicle door structure of the present invention. Any vehicle having a vehicle door structure that can be freely opened and closed via a similar door hinge or the like can be widely applied to various other vehicles. In the following description, the case where the reinforcing member according to the present invention is provided on the inner panel side of the outer panel in the door main body will be described. However, the outer panel is not shown in the drawing from the viewpoint of easy viewing.

  FIG. 1 is a block diagram schematically showing a vehicle door structure 1 according to at least one embodiment of the present invention. In FIG. 1, portions corresponding to those in FIG. 2 described above are denoted by the same reference numerals, and redundant description will be omitted as appropriate.

  In the vehicle door structure 1, an integral reinforcement 80 as a reinforcing member is attached on the inner panel 2 in the door body 10. That is, in the vehicle door structure 1 of the present embodiment, compared to the conventional vehicle door structure 1 ′ shown in FIG. 2, the belt line reinforcement 8 a, the door panel reinforcement 8 b, and the door panel reinforcement 8 b provided separately from each other, The lower reinforcement 8c and the door handle reinforcement 8d are formed as a single member (integrated reinforcement 80).

  More specifically, in the vehicle door structure 1, the door body 1 includes an outer panel (not shown) and an inner panel 2, and a window glass storage space (not shown) is provided between the outer panel and the inner panel 2. ) Is secured. The inner panel 2 has a window frame 3 at the top, and the bottom of the window frame 3 is a belt line portion 4 into which a window glass (not shown) protrudes and sinks.

  A door pillar 5 is attached to the front of the inner panel 2. The door pillar 5 extends vertically along the front edge of the inner panel 2, and the upper and lower door hinges 6, 7 are attached to the door pillar 5. Accordingly, the vehicle door (door body 1) is connected to the vehicle body (cab body) (not shown) via the door hinges 6 and 7 so as to be freely opened and closed.

  Moreover, in the site | part which extends from the front edge part along the beltline part 4 in the door main body 1 to the door butt part toward the door butt part from the front edge part of the said belt line part 4, and approaches the said door butt part. An integral reinforcement 80 formed so as to extend vertically (extending in the vertical direction of the vehicle body) is provided. In other words, the reinforcement 80 is arranged in a lateral V-shape that spreads in the vertical direction of the vehicle body as it goes to the rear of the vehicle body.

  Here, the reinforcement 80 is made of steel, is provided in the above-described storage space, and is disposed so as to extend in the front-rear direction of the vehicle body along the beltline portion 4. The reinforcement 80 is located at a portion between the front edge portion and the rear edge portion, and has a reinforcing main body portion 81 having a hollow rectangular closed cross section independent of the outer panel, and a front edge portion of the reinforcing main body portion 81. A front panel reinforcing portion 82 disposed near the door hinge 6 at the front edge portion of the outer panel, and a door latch (not shown) provided at the rear edge portion side of the reinforcing main body 81 and provided at the door bottom portion of the outer panel A rear panel reinforcing portion 83 disposed in the vicinity, and the reinforcing main body portion 81, the front panel reinforcing portion 82, and the rear panel reinforcing portion 83 are integrally formed.

  In such reinforcement 80, the reinforcing main body portion 81 mainly contributes to the longitudinal load on the vehicle body, and the front panel reinforcing portion 82 reinforces the hinge 6 disposed in the front portion of the door main body 1. The rear panel reinforcing portion 83 mainly contributes to reinforcement of a latch (lock mechanism) that is disposed at the rear portion of the door body 1 and holds the door when the door is closed. Therefore, the rigidity of the door body 1 can be ensured.

As described above, in the vehicle door structure 1 according to the present embodiment, the portion provided on the inner panel 2 in the door body 10 and extending from the front edge portion to the door bottom portion along the belt line portion 4 An integral reinforcement that extends from the front edge to the rear edge of the belt line portion 4 and extends longitudinally from the front edge of the belt line portion 4 toward the door bottom and closer to the door bottom. 80. That is, in the conventional vehicle door structure 1 ′, these are integrated in place of the beltline reinforcement 8a, the door panel reinforcement 8b, the lower reinforcement 8c, and the door handle reinforcement 8d that are separately provided. A reinforcement 80 composed of only one member is provided. According to this, the number of parts as the reinforcement 80 can be reduced as compared with the conventional vehicle door structure 1 ′ while ensuring the rigidity of the door body 1, and the manufacturing cost can be reduced. Further, since the reinforcement 80 is integrated, the number of spot welding locations for joining the reinforcing members as in the prior art can be reduced, and the assembly process can be simplified, so that the operation cost can be reduced.
Thus, while ensuring the rigidity of the door main body 10, while reducing the number of parts as the reinforcement 80 and reducing manufacturing cost, the vehicle door structure which can simplify an assembling process and can reduce work cost. realizable.

  Further, since the reinforcement 80 is formed by integral molding including the reinforcing main body portion 81, the front panel reinforcing portion 82, and the rear panel reinforcing portion 83, a conventional reinforcing member (belt line reinforcement 8a, door panel reinforcement 8b, Compared to the lower reinforcement 8c and the door handle reinforcement 8d), the number of parts of the reinforcement 80 can be greatly reduced, the manufacturing cost can be reduced, and the joining work between the reinforcing members can be eliminated. This greatly simplifies the operation cost.

  In addition, when the reinforcement 80 is joined to a portion of the outer panel that forms the vehicle body surface portion by welding using a technique such as spot welding, irregularities are formed on the vehicle body surface, which may cause a decrease in appearance. Although the bonding is performed using an adhesive or the like, the integration of the reinforcement 80 increases the number of parts formed by surfaces in the reinforcement 80, and thus has an advantage of increasing the degree of freedom in bonding to the outer panel.

  According to the present invention, while ensuring the rigidity of the door body, the number of parts of the reinforcing member can be reduced to reduce the manufacturing cost, and the assembly process can be simplified to reduce the operating cost. It is suitable for use in a vehicle door structure that is openably and closably connected via a door hinge.

1 Vehicle door structure 2 Inner panel 2
3 Window frame 4 Belt line 5 Door pillar 5
6, 7 Door hinge 10 Door body 80 Reinforce (integrated reinforcement member)
81 Reinforcing body part 82 Front panel reinforcing part 83 Rear panel reinforcing part

Claims (1)

A door body having a belt line portion in which a storage space for the window glass is secured between the outer panel and the inner panel, and the window glass projects and sinks;
In the region including the belt line portion of the outer panel, it extends from the front edge portion to the rear edge portion, extends from the front edge portion of the belt line portion to the door bottom portion, and extends vertically as it approaches the door bottom portion. A reinforced member,
A vehicle door structure comprising:

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