JPH0958529A - Structure of rear upper beam of wing car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily perform a maintenance-inspection or the like by erecting a flange part in a rear part of a recessed part to pivotally fix a fulcrum part of a cylinder, and covering a rear part of the flange part with a cover member having an almost circular arc-shaped part so as to be mountable and demountable in a wing car on which blades to vertically rotate by the cylinder are hinged. SOLUTION: In a wing car, cross-sectional L-shaped blades 22 and 22 to vertically rotate by extension-contraction of a cylinder 26 are hinged on both left and right sides of a support beam installed between a front wall and a top part of a door frame. A recessed part 24 to pivotally fix a fulcrum part of the cylinder 26 is arranged in an upper beam of the door frame, and a flange part 30 coming into contact with edge parts 23 of the blades 22 through a sealing member is erected in a rear part of this recessed part 24. In this case, a cross-sectional L-shaped installing edge 34 is extendedly arranged in the axial direction in a back face upper part of the flange part 30, and both end parts of a cover member 38 formed of a bending material having a circular arc-shaped part 37 are removably fixed to these installing edges 34 and 36.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the structure of a rear upper beam of a wing vehicle.

[0002]

2. Description of the Related Art As shown in FIG. 3, a front wall is erected at a front end of a floor, and a door frame or a rear wall is erected at a rear end of the floor, and a support is provided between the front wall and the top of the door frame or the rear wall. A beam is stretched, and wings having an L-shaped cross-section that pivots up and down by expansion and contraction of the cylinder are hinged on both left and right sides of this support beam, and the fulcrum of the cylinder is attached to the door frame or the upper frame of the rear wall. A concave portion for pivotally attaching the flange portion is provided upright on the rear portion of the concave portion so as to abut the end edge of the L-shaped blade via a seal member, and the rear portion is reinforced to reinforce the flange portion. Wing cars with beams formed on them are rapidly becoming popular because they are convenient for opening and closing during unloading.

[0003]

Since the vertical rotation of the blade having the L-shaped cross section is caused by the expansion and contraction operation of the cylinder, the door frame or the rear wall supporting the fulcrum of the cylinder. The upper beam of must be considerably stronger,
Therefore, in order to reinforce the flange portion, a beam having a closed cross section with an angle is formed in the rear portion.

Therefore, there is a problem in that the flow of air is disturbed during traveling and the rear door is easily soiled because it is not smart in appearance and is not arcuate, and the rear door frame or the upper beam of the rear wall has a closed cross section. There was a problem that electrical wiring and hydraulic piping were difficult to pass through, and it was difficult to remove and install top marker lamps and back eye cameras.

An object of the present invention is to solve this problem by constructing the rear upper end of the rear upper beam of the wing car in an arc shape and opening the cross section of the upper beam, and the strength is also different from the conventional one. Not to provide the rear upper beam of a wing car.

[0006]

In order to achieve the above object, a front wall is erected at a front end of a floor and a door frame or a rear wall is erected at a rear end thereof, and the front wall and the door frame or the rear wall are erected. A support beam is stretched between the tops of the walls, and wings having an L-shaped cross section that pivots up and down by the expansion and contraction of a cylinder are hingedly attached to the left and right sides of the support beam and attached to the door frame or the upper frame of the rear wall. A recess is provided for pivotally supporting the fulcrum of the cylinder, and a flange is provided upright on the rear of the recess to abut the end edge of the L-shaped blade via a seal member. There is provided a structure of a rear upper beam of a wing vehicle, characterized in that the rear portion is detachably covered with a cover member formed of a bending material having a substantially arcuate portion.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows one form of a rear upper beam of a wing vehicle to which the present invention is applied in a view taken along the line AA of FIG. 2 is an external perspective view of a wing car to which the present invention is applied and one of the wings is opened, and FIG. 3 is a cross-sectional structure of a rear upper beam of a conventional wing car corresponding to FIG.

In FIG. 2, the wing car 10 has a front wall 14 standing upright at the front end of a floor 12 and a door frame 16 standing upright at the rear end thereof. A support beam 20 is freely hinged, and a supporting beam 20 is stretched between the front wall 14 and the top of the door frame 16. The supporting beam 20 has an L-shaped cross-section that is vertically rotated by expansion and contraction of a cylinder 26 on both left and right sides. Blades 22, 22
As shown in FIGS. 1 and 3, the upper beam of the door frame 16 is provided with a concave portion 24 for pivotally attaching the fulcrum portion of the cylinder 26, and the L-shaped portion is provided at the rear portion of the concave portion 24. Type of blade 22
A flange portion 30 that abuts against the end edge portion 23 of the seal member 28 via a seal member 28 is erected, and in the conventional structure shown in FIG. 3, the rear portion of the flange portion 30 is formed of a bending material for reinforcement. Since the beam 32 having an angular closed cross section is formed, there is a problem that the air flow is disturbed during traveling because the appearance is not a smart and not an arc shape, and the rear door is easily soiled. Since the upper frame of the rear wall has a closed cross section, it is difficult for electrical wiring and hydraulic piping to pass through, and there is a problem that it is difficult to remove and install top marker lamps and back eye cameras.

In the rear upper beam of a wing car to which the present invention is applied according to FIG. 1, a mounting side 34 having an L-shaped cross section is provided in the width direction at the upper rear portion of the flange portion 30, and a cross section L is provided at the lower portion.
The character-shaped mounting side 36 is extended in the width direction, and these mounting sides 3
4, 36 are provided with screws 40, 4 respectively on both ends of a cover member 38 formed of a bending material having an arcuate portion 37.
It is removably fixed to the attachment sides 34 and 36 through the zero.

According to the first embodiment of the present invention as described above, since the rear end portion of the rear upper beam of the wing car is arcuate, the flow of air is not disturbed when the vehicle is running, and therefore the rear door is less likely to get dirty and the cover member. Since both ends of 38 are fixed to the mounting sides 34, 36 via screws 40, 40 and can be easily removed, the top marker lamp 42, the back eye camera 44, etc. are mounted and removed, and wiring is performed. Cylinder-26 that is easy to do work and maintenance and is indispensable for opening and closing the wing car
The work of the pipes 46 and 48 can be easily performed.

As Embodiment 2 of the present invention, instead of fixing with screws 40, bolts, nuts, removable blind rivets, or double-sided adhesive tape may be used for fixing.

As a third embodiment of the present invention, instead of an arc shape, a cover member formed of a bending material having an elliptic arc or a streamlined portion close thereto may be detachably covered.

[0013]

As described above, according to the present invention, since the rear end portion of the upper rear beam of the wing car is substantially arcuate, the air flow during traveling is not disturbed, and therefore the rear door is less likely to get dirty and both end portions of the cover member are prevented. Is fixed via screws, bolts, nuts, removable blind rivets, or adhesives and can be easily removed, so it is possible to remove top marker lamps, back eye cameras, etc. A cylinder that is easy to perform maintenance and is indispensable for opening and closing the wing car −
The piping work can be done easily.

[Brief description of drawings]

FIG. 1 shows an embodiment of a rear upper frame of a wing car to which the present invention is applied, as seen in the direction of arrow AA in FIG.

FIG. 2 is an external perspective view of a wing car to which the present invention is applied and one of the blades is opened.

FIG. 3 shows a sectional structure of a rear upper frame of a conventional wing vehicle corresponding to FIG.

[Explanation of Codes] 10 Wing Vehicle 12 Floor 14 Front Wall 16 Door Frame 18 Door 20 Support Beam 22 Blade with L-shaped Section 23 Rear End 24 Recess 26 Cylinder-28 Seal Member 30 Flange 32 Beam with Closed Section 34 Mounting Side 36 Mounting Side 37 Arc-Shaped Part 38 Cover Member 40 Screw 42 Top Marker Lamp 44 Back Eye Camera 46 Piping 48 Piping

Claims (1)

[Claims] 1. A front wall is erected on the front end of the floor, a door frame or a rear wall is erected on the rear end, and a support beam is stretched between the front wall and the top of the door frame or the rear wall. On the left and right sides of the support beam, wings with an L-shaped cross section that pivots up and down by the expansion and contraction of the cylinder are attached.
The door frame or the upper frame of the rear wall is provided with a recess for pivotally mounting the fulcrum of the cylinder, and the rear of the recess is brought into contact with the end edge of the L-shaped blade via a seal member. A structure of a rear upper beam of a wing vehicle, wherein a flange portion is provided upright, and the rear portion of the flange portion is detachably covered with a cover member formed of a bending material having a substantially arcuate portion.