JPH0736821Y2 - Swing door device for vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a swing door device for a vehicle, which is suitable for use in a vehicle, particularly a truck.

(Prior Art) Conventionally, sliding doors have been widely used in so-called van-type vehicles in order to facilitate the loading and unloading of cargo in a narrow space such as a shopping street or the loading and unloading of personnel. However, in the case of a truck that is used for almost the same commercial purpose, it is difficult to provide a rail for sliding the door in the vehicle front-rear direction due to the structure of the cab. A structure in which a front edge or a rear edge of a door is pivotally attached to a vehicle body by a simple hinge device is generally adopted. Since this type of revolving door has a large turning radius when opening and closing, it is difficult to open and close the door in a narrow space, which does not cause inconvenience for loading and unloading cargo and getting in and out of personnel, and doors on narrow roads. There is a problem such that the opening and closing of the block the passage of other vehicles or pedestrians. Therefore, the door is pivotally supported on the vehicle body by a pair of front and rear arms that form a parallel link mechanism, and the space required for opening and closing the door in the vehicle width direction is far greater than that of the rotary door, if not the sliding door. So-called swing doors that have been made smaller have already been proposed.

In the swing door, particularly in the swing door for trucks, from the viewpoint of the vehicle body structure, the front and rear arms have front ends fixed to a floor member of a passenger compartment supporting a passenger's seat cushion. It is preferable that the other end of each arm is pivotally attached to the rear bracket, and the other free ends of the arms are connected to the inner panel of the door through the respective fittings. In this case, since the entire weight of the door is carried and the opening / closing force acts through the mounting members of the front arm and the rear arm, it is necessary to sufficiently reinforce the door inner panel around the mounting members.

(Problems to be solved by the invention) The invention supports the door by the parallel link mechanism,
In addition, it is an object of the present invention to provide a rational configuration in which a pair of arms and an inner panel of a door are firmly connected to each other in a swing door that is opened and closed.

(Means for Solving Problems) The present invention was devised to achieve the above-mentioned object, and is connected to the vehicle body by a pair of front and rear arms so as to form a substantially parallel link mechanism. In a swing door that opens and closes a door opening, a mounting bracket that connects the swing door and the front arm extends in a vehicle width direction surface formed in a front end portion of the door inner panel and in a vehicle front-rear direction. Is fixed to the inner panel via first reinforcing members that are obliquely provided in a bent portion having a curved surface, and both ends are fixed to the vehicle width direction surface and the vehicle body front-back direction surface, and the swing door and the rear side. The mounting bracket that connects the arm
The door inner panel is attached to the inner panel via a second reinforcing portion fixed to the vehicle width direction surface of the vertical reinforcing member that extends in the vertical direction and to the vehicle front-rear direction surface of the inner panel. A second aspect of the present invention is a swing door device for a vehicle, characterized in that the second reinforcing member is configured to form a closed cross section between the second reinforcing member and a surface of the door inner panel in the vehicle front-rear direction. is there.

(Operation) According to the present invention, the front mounting member for connecting the front arm to the door inner panel has a vehicle width direction surface formed at the front end portion of the door inner panel and a surface extending in the vehicle front-rear direction. The door inner panel is fixed to the door inner panel via first reinforcing members that are obliquely provided on the bent portion and have both ends fixed to the vehicle width direction and the vehicle body front-rear direction surfaces, respectively. The first reinforcing member is
Since a substantially triangular closed cross-section structure is formed in the inner panel portion to which the mounting bracket is attached, the panel portion can be sufficiently reinforced. In addition, the mounting bracket that connects the rear arm to the door inner panel is fixed to the central portion of the door inner panel and extends in the vertical direction. Is fixed to the inner panel via a second reinforcing member which is fixed to the inner panel and constitutes a reinforcing member having a closed cross section. A second reinforcing member that is first reinforced by fixing a vertical reinforcing material to the central portion of the panel, which is an essential weak point of the door inner panel, and then is fixed to both the vertical reinforcing material and the inner panel. Since the closed cross-section reinforcing portion is formed by the above, the door inner panel around the mounting bracket is sufficiently reinforced.

(Embodiment) An embodiment of the present invention will be specifically described below with reference to the accompanying drawings. First, in the conceptual side view of the truck shown in FIG. 1, reference numeral 10 is a cab, 12 is a door opening of the cab 10, 14 is a swing door for opening and closing the door opening 12, and 16 is a chassis for supporting a luggage carrier (not shown). The frame and 18 are front wheels. As shown in FIG. 2, the swing door 14 is mounted on the outside of the vehicle body of the pair of arms 24 and 26 via a pair of mounting metal fittings 20 and 22 which are fixed at intervals in the vehicle front-rear direction. The other ends of arms 24 and 26 are pivotally attached to the ends and brackets 28 and 26, respectively.
It is pivotally supported on the floor 32 of the vehicle body through 30. As shown in FIG. 1, the floor 32 rises from a floor portion 32a in front of the vehicle on which an occupant such as a driver rests and extends to the rear of the vehicle, and extends to the floor portion 32b in the rear of the vehicle. A seat cushion 34 for an occupant is mounted, and a seat back 36 is arranged at the rear end of the seat cushion 34. Brackets 28 and 30, which support the other ends of the arms 24 and 26, that is, the ends on the vehicle body side, are fixed to the rear floor portion 32b of the floor 32 which is raised.

In the above structure, when the swing door 14 is closed, as shown by the solid line in FIG. 2, the pair of arms 24 and 26 are in the closed position close to each other, and the front end portion and the rear end portion of the door 14 are closed. The front latch device 38 and the rear latch device 40 provided on the parts are correctly engaged with the striker on the vehicle body side and are in the locked position, and the door 14 is held in the safe closed position by the latch devices 38 and 40. ing. When the swing door 14 is opened for loading and unloading cargo, etc., when the inside handle or the outside handle (not shown) is unlocked, the front latch device 38 and the rear latch device 40 are unlocked respectively. When locked, the door 14 rotates around the locus shown by the alternate long and short dash line in FIG. 2 and opens to the fully open position regulated by a door checker (not shown).

The swing door 14 includes a door inner panel 42 and a door outer panel 44, as shown in FIG. 4 which is a cross section near the front end thereof and which is shown in FIG.
And the mounting member 20 for pivotally attaching the end portion of the front arm 24 to the front end portion of the inner panel 42.
Is fixed by an arbitrary tightening device such as a bolt, and the mounting metal fitting 22 pivotally connecting the end portion of the rear arm 26 is fixed to the center portion of the inner panel 42 by an arbitrary tightening device such as a bolt. At the front end portion of the inner panel 42, as best shown in FIG. 4, a surface 42 extending in the vehicle width direction is shown.
A bent portion formed by a and a surface 42b extending in the front-rear direction of the vehicle body is provided, and the first reinforcing member 46 is arranged in the bent portion,
As shown by the cross mark in the perspective view of FIG. 6, they are fixed to the surface 42a in the vehicle width direction and the surface 42b in the vehicle body front-rear direction by spot welding 48, respectively. The first reinforcing member 46 has a substantially rectangular side surface, and the front latch 38 is formed in the central portion.
Is equipped with openings for inserting, and is provided with reinforcing flanges 50 that rise and bend in an angular shape on both upper and lower edges, and further, on a flat portion fixed to the vehicle front-rear surface 42b of the inner panel 42, A bolt hole 52 for fixing the mounting member 20 is formed.

Next, as shown in the vertical cross-sectional view of FIG. 5, a vertical reinforcing member 54 is arranged at the central portion of the inner panel 42 to reinforce the weak portion of the inner panel 42. Flange 56 that abuts the inner panel (see exploded perspective view in FIG. 7)
Is fixed to the surface 42b of the panel in the vehicle front-rear direction by spot welding. At this time, if necessary, a flat plate-shaped auxiliary reinforcing member 58 is interposed between the flange 56 and the surface 42b and integrally welded. Obviously, by providing the vertical reinforcing member 54, the essentially weak central portion of the inner panel 42 is significantly strengthened in the vertical direction. Further, as best shown in the exploded perspective view of FIG. 7, a second U-shaped reinforcing member 60 having flanges 6a, 60b and 60c on three sides is adjacent to the vertical reinforcing member 54. And the flanges 60a and 60b are fixed to the surface 54a of the vertical reinforcing member 54 extending in the vehicle width direction by spot welding. It is fixed to the surface 42b by spot welding. The flange 60c is provided with a bolt hole 62 for fixing the fitting 22 for pivotally attaching the end portion of the rear arm 26. The bolt hole 62 is, of course, provided on the auxiliary reinforcing plate 58 and the surface 42b of the inner panel. Cooperates with the drilled bolt holes.

According to the above configuration, the mounting bracket 20 for pivotally mounting the front arm 24
In the mounting portion, the inner panel 42 forms a substantially triangular closed cross-section structure together with the first reinforcing member 46 as shown symbolically in FIG. The inner panel 42 is first reinforced by the vertical reinforcing member 54 at the mounting portion of the mounting bracket 22 for pivotally mounting the rear arm 26. Further, the flange of the second reinforcing member 60
The second reinforcing member 60 and the door inner panel 60 are fixed by fixing the 60c to the front-rear surface 42b of the door inner panel 42.
A closed cross-section structure is formed with 42. Moreover, the flanges 60a and 60b of the second reinforcing member 60 are formed on the surface 5 of the vertical reinforcing member 54 in the vehicle width direction.
Since it is fixed to 4a, the strength of the closed cross-section structure is further enhanced, and as a result, the strength around the mounting bracket is significantly strengthened. As a result, the swing door 14 can have sufficient durability with respect to its weight, opening / closing operation force, and the like. Incidentally, the first and second reinforcing members 46 and 60 in the above embodiment
The shape of is not limited to that shown in the figure, and can be appropriately changed in relation to the peripheral members inside the door. For example, the second reinforcing member 60 is not limited to the U-shape, but may have a trapezoidal shape, a semi-cylindrical shape, or the like. Further, the arms 24 and 26, the swing door 14 and the floor 32 of the vehicle body do not necessarily have to constitute a mechanically correct parallel link mechanism, and when the door is closed, the swing door 14 is provided at the door stop portion of the cab 10.
As long as they abut correctly so that they can maintain airtightness,
Even if the door is slightly tilted from the parallel position when fully opened, there is obviously no problem in practical use. Therefore, it suffices that the arms 24 and 26, the swing door 14 and the floor 32 form an approximate parallel link mechanism, and the space required for opening and closing the door can be greatly reduced compared to the conventional rotary door. The effects obtained are substantially the same.

(Effect of the Invention) As described above, the vehicle swing door apparatus according to the present invention is connected to the vehicle body by a pair of front and rear arms to open and close the door opening of the vehicle compartment so as to form a substantially parallel link mechanism. In a swing door, the mounting bracket for connecting the swing door and the front arm has a vehicle width direction surface formed at the front end of the door inner panel and a surface extending in the vehicle body front-rear direction. The swing door and the rear arm are connected to each other through a first reinforcing member that is obliquely provided on the bent portion and has both ends fixed to the vehicle width direction surface and the vehicle body front-back direction surface. The mounting bracket is
To the inner panel via a second reinforcing member that is fixed to the central portion of the door inner panel and extends in the up-down direction in the vehicle width direction surface of the vertical reinforcing member and the vehicle body front-rear direction surface of the inner panel. Further, the second reinforcing member is configured so as to form a closed cross section between the door inner panel and a surface of the door inner panel in the front-rear direction of the vehicle body. By strengthening in the field, there is an advantage that the durability of the door can be secured.

[Brief description of drawings]

FIG. 1 is a schematic side view of a truck embodying the present invention, and FIG.
1 is an enlarged plan view showing an opening / closing mode of the swing door 14 shown in FIG. 1, FIG. 3 is a side view showing the outer panel 44 of the door 14 removed, and FIG. 4 is IV- of FIG. A partial cross-sectional view along the line IV as seen in the direction of the arrow, and Fig. 5 is the VV of Fig. 3.
FIG. 6 is a longitudinal sectional view taken along the line in the direction of the arrow, FIG. 6 is a perspective view of a main portion with the outer panel 44 removed from FIG. 4, and FIG. 7 is an exploded perspective view showing a reinforcing structure in the central portion of the door 14. FIG. 8 and FIG. 8 are perspective views of a main part with the outer panel 44 removed from FIG. 10 …… Cab, 12 …… Door opening, 14 …… Swing door,
20 and 22 …… Mounting bracket, 24 …… Front arm, 26 …… Rear arm, 42 …… Inner panel, 44 …… Outer panel, 46
…… First reinforcing member, 54 …… Vertical reinforcing member, 60 …… Second reinforcing member.

Claims (1)

[Scope of utility model registration request] 1. A swing door which is connected to a vehicle body by a pair of front and rear arms and which opens and closes a door opening of a vehicle compartment so as to constitute a substantially parallel link mechanism, wherein the swing door and the front arm are provided. The mounting bracket to be connected is
The door inner panel is obliquely installed at a bent portion having a surface in the vehicle width direction and a surface extending in the vehicle front-rear direction formed at the front end portion, and both ends are formed in the vehicle width direction surface and the vehicle body front-rear direction surface. A vertical reinforcing member that is fixed to the inner panel via the first reinforcing member that is fixed, and that has a mounting bracket that connects the swing door and the rear arm to the central portion of the door inner panel and that extends vertically. Is fixed to the inner panel via a second reinforcing member that is fixed to a surface in the vehicle width direction of the vehicle and a surface of the inner panel in the vehicle front-rear direction. Further, the second reinforcing member is the vehicle inner-front direction of the door inner panel. Swing door device for a vehicle, characterized in that it is configured to form a closed cross section with the surface of the vehicle.