JPH10211988A - Arch type roof beam supporting device for wing car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate a cargo work for moving cargoes along rails on the floor surface and disperse loads and stresses from a roof beam by forming a U-shaped arch type bearing column from a pair of left and right vertical parts erected at an intermediate locations of a cargo bed and a horizontal part provided between the top ends of the vertical parts. SOLUTION: A U-shaped arch type bearing column 50 is erected at the side ends of a cargo bed in the central portion of a cargo bed in the longitudinal direction thereof. Vertical parts 51 of the column 50 each have a thin thickness and a flat external appearance and even if the parts 51 are erected adjacent to side walls, the parts 51 do not project on the floor side of the cargo bed. A horizontal part 55 is formed by inserting a channel material into the U-shaped groove of another channel material whose internal dimension is equal to the external dimension of the former one and an iron block is inserted into the opposite ends of the part 55 to connect the part 55 to the top ends of the vertical parts 51. Thus by combining two channel materials for reinforcement, vertical loads can be born by the part 55 and by inserting the iron block into the connection part of the column 50, stresses at the connection part can be dispersed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support for reinforcing a roof beam of a wing vehicle in which a roof portion and a side portion of a cargo box mounted on a rear portion of a vehicle are covered with a pair of left and right wing type roof portions. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof beam reinforcing device that reduces a load on a roof beam that increases in a wing vehicle having a loading platform, prevents bending or the like due to vibration during traveling, and does not hinder cargo handling work.

[0002]

2. Description of the Related Art As shown in FIG. 9, a wing car has a front wall 11 erected at a front end of a cargo bed and an entrance frame 12 provided with a double door 13 erected at a rear end thereof. A pair of left and right wing-type roofs 21 having an L-shaped cross section are provided on a long roof beam 20 provided between the upper ends of the central portions so as to be freely opened and closed in the vertical direction. One side is hinged to the roof beam by a hinge, and is configured to be openable and closable up and down by a hydraulic cylinder or the like. The roof beams that support the wing-type roof will bend when the floor 3 of the loading platform is opened as shown in the figure, because they support the entire load of the wing-type roof, but as the loading platform length becomes longer, The wing-type roof is also long, and as seen in recent years, in a wing trailer or the like to which a wing truck having a bed length of 12 m or more is connected, the deflection due to these loads becomes remarkable. In a wing car, the roof beam not only bends due to the load of the wing type roof, but also vibrates and bends during traveling,
The hinge of the roof beam was damaged by a load such as torsion, and this sometimes hindered the opening / closing operation of the wing type roof.

In order to solve such a problem,
Although it is necessary to increase the strength of these easily breakable portions, since the load and the stress due to such loads are large, simply increasing the strength undesirably increases the weight. Therefore, it has been proposed to provide a supporting device for supporting the roof beam between the roof beam and the center of the floor in order to alleviate excessive bending and concentration of a large load in terms of strength and resolve such a problem. It is coming. For example,
2-22008 and JP-A-63-156883, or Japanese Patent Application Laid-Open No. 7-25 filed earlier by the present applicant.
No. 7192 is disclosed. Among them, the latter is designed to absorb the swing of the roof beam by a shock absorbing device mounted on a supporting column to reduce these loads. For example, in Japanese Unexamined Patent Publication No. 7-257192, a support pillar 5 is erected at the center of the floor 3 as shown in FIG. Has proposed a structure in which a lower locking pin that fits into a locking hole in the floor portion is provided, and an adjusting portion 6 that changes the height of the support pillar and an elastic portion 7 that absorbs vehicle vibration are provided in the middle portion. . However, in these cargo boxes such as wing trucks, in addition to opening and closing the wing type roof and opening the side of the cargo platform to carry out cargo handling from the side, in many cases, the double doors behind the cargo box are installed. When the cargo is loaded, the cargo loaded on the pallet is moved to the floor by the cargo handling rail laid on the floor of the packing box from the rear of the packing box, and the loading operation is sequentially performed. In such a case, a supporting device such as a supporting column provided at the center of the floor impedes such movement of the floor surface. The work space is significantly limited, and problems such as scratching the cargo on the pallet during transfer and collapse of the cargo due to contact cannot be solved. This caused inconvenience in the work. In order to cope with such obstacles, these supporting devices are detachably provided from the floor surface. However, these supporting devices must be removed together with the cargo handling work and the subsequent installation work. This requires time and effort, which causes a reduction in the efficiency of cargo handling work. These cargo handling operations need to be performed efficiently within a limited time at transport bases along logistics connecting cities, production bases and consumption areas, etc. Improvements in work efficiency are being strongly sought.

[0004] The general structure of these wing vehicles will be described. When the wing vehicle is running, the carrier 25 is closed by rotating the fan 25 and the wing type roof 21 from above and below as shown in FIG. The fan and the wing type roof are locked to the middle pillars 30 erected on both sides of the loading platform so that the fan and the wing type roof do not open due to vibration or shaking. Wing type roof 2
The lower end of 1 covers the upper end of the fan and the middle pillar, and closes the upper part of the fan. FIG. 3 shows details of a portion indicated by a circle B in FIG. 2. The fan 25 and the wing type roof 21 are respectively provided by a spring lock 40 for mounting and dismounting and a spring lock 45 for mounting and dismounting the wing provided on the center pillar 30. The locked state is shown. In these figures, two lifts are provided on the side of the bed of the vehicle with a middle pillar 30 interposed therebetween, and the lift is attached to a side frame member 26 of the bed by a hinge 27 so as to be freely opened and closed. The center pillars are erected on both sides of the carrier to secure the fan and wing-type roof. An engagement guide 31 is provided at the lower end of the center pillar 30 as shown in FIG.
Engagement groove 2 of mounting bracket 28 fixed to side frame member 26 of the carrier
By inserting the engaging guide into 9, the center pillar is erected on the side of the carrier. FIG. 4 shows a fixing structure in which the engagement guide at the lower end of the middle pillar is pulled out from the engagement groove of the mounting bracket.

[0005] As the structure of the center column of the wing wheel, besides such a plug-in type, there is a rotary type using a hinge as shown in FIG. Also, various cross-sectional shapes are used for the side frame members of the carrier. For example, a special side frame member 26 as shown in FIG. 8 is used for these longitudinal sectional shapes, but in any case, there is basically no change in the locking structure. When such a wing-type roof and a fan are locked to the center pillar and the cargo bed is closed and traveled, the roof beams are vibrated, shaken, and bent or twisted applied to the vehicle body during traveling as described above. Is bent or vibrated.
At this time, the wing type roof is made thin for weight reduction and cannot provide rigidity. Therefore, the wing type roof is not only flexibly deformed and deformed together with the roof beam supporting it, but also the middle pillar locked when the roof beam is flexed significantly. This causes an excessive load accompanying the above and causes the lateral expansion, which is not preferable.

[0006]

SUMMARY OF THE INVENTION The present invention has been devised in order to solve such a problem. The present invention eliminates a trouble in moving a floor surface during loading and unloading work in a wing vehicle, and solves the problem. It is an object of the present invention to improve the efficiency of cargo handling work and to prevent excessive bending and load of a wing type roof to prevent breakage thereof.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a wing car in which a side portion of a packing box and a roof portion are integrated with a pair of right and left roofs. Formed by a pair of left and right vertical sections having a flat cross-section, which are erected at the left and right ends at the intermediate position of the loading platform, and a flat section having a horizontal cross-section, which extends between the upper ends of the vertical sections. It consists of a letter-shaped arch type support column. Further, in this structure, the lower end of the vertical portion of the arch-type support column is inserted into a locking hole provided in the carrier side frame material and is erected, and further, the vertical portion and the horizontal portion of the arch-type support column are Each of the cross-sectional shapes is a hollow rectangular tube, a fixed portion is extended at a lower end of the vertical portion, and a connecting portion with a horizontal portion is attached at an upper end, and a vertical portion is provided at both left and right ends of the horizontal portion. Each of the connecting portions of the arch-type support column is formed by extending the connecting portion with the connecting portion and connecting the connecting portion and the connecting portion at the upper end of the vertical portion in a U-shape with a bolt. It has a structure in which a wing-type roof is fixed to a center pillar for locking.

[0008]

According to the roof beam support structure of the first aspect, since the roof beam support device is erected in an arched manner across both sides of the carrier, pallets and the like are used when moving cargo along the rails on the floor surface. There is no risk of contact, and cargo handling can be performed easily and quickly. Further, since the arch-type support structure can disperse the load and stress from the roof beam, a sufficient support force can be exerted even in a flat section in which the vertical portion does not protrude to the floor surface side. The overall structure of the cargo box, including these wing-type roofs and roof beams, cannot be made highly rigid as a whole due to the demand for weight reduction.Therefore, excessive loads are dispersed to avoid stress concentration and reduce durability. Although it is necessary to provide such an arched support structure, such an arched support structure can meet such a demand without difficulty. In addition, the structure in which the vertical portion of the arch-type support column is inserted into the notch-shaped locking hole provided in the carrier side frame material and is erected is changed from the structure in which the carrier side frame material is provided. It is effective in preventing roof beams from being protruded to the floor side as an arrangement in contact with the wing-type roof, and in particular, at the ends of the floor side Since it is common to provide a space for installing a stopper to prevent rainwater from infiltrating into the roof and passing rope for tightening luggage, it is necessary to arrange support columns that do not waste space and do not protrude to the floor side. It is possible.

Further, the cross-section of the vertical and horizontal portions of the arch type support column is a hollow rectangular tube, and a fixed portion is extended at the lower end of the vertical portion and the horizontal portion is formed at the upper end. A structure in which a connecting portion is attached, a connecting portion with a vertical portion is extended at each of the left and right ends of the horizontal portion, and the connecting portion and a connecting portion at the upper end of the vertical portion are connected in a U-shape with bolts is provided. The thin flat and lightweight structure can provide sufficient strength, and uses a strong member such as a block as a connecting portion between the vertical portion and the horizontal portion as a connecting portion between the horizontal portion and the fixing portion of the vertical portion. Thereby, the strength corresponding to the concentration of the load can be provided. In addition, the structure in which the vertical portion of the arch-type support column is fixed to the center column that holds the wing-type roof and the vertical portion of the arch-type support column is possible in the structure of these arch-type support columns, and the center column is formed of a roof beam. It can be effectively used as a reinforcement structure.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be specifically described below with reference to the drawings. FIG. 1 shows a wing wheel having a roof beam support device according to the present invention, in which a U-shaped arched support column 50 is provided at a central portion in the longitudinal direction of a carrier and its base is erected from a carrier side end. In FIG. 1, two fans 2
5 is hinged to the end on the loading platform side with the middle pillar 30 interposed therebetween. The center pillar in this figure has a lower end pivotally attached to a mounting bracket at the end of the loading platform, and can be opened and closed in the same manner as a fan. The lower part is in a position where it contacts the back surface of the center pillar. FIG. 5 shows a cross section of the wing wheel in FIG. 1 as viewed along the line AA. An alternate long and short dash line indicates the standing middle pillar 30. In the roof beam support column, the vertical portion 51 and the horizontal portion 55 are connected to form a U-shaped arch. A fixed portion 52 extends from the lower end of the vertical portion and a lid plate is fitted to the upper end to form a connecting portion with the horizontal portion, and connecting portions 56 extend from both left and right ends of the horizontal portion. I have. With such a component, the fixed portion at the lower end of the vertical portion is inserted into the notch-shaped locking hole 33 formed in the side frame member 26 at the end of the loading platform, and sandwiches the side frame member therebetween. The lower end of the outer middle pillar is fastened together with a mounting bracket 28 pivotally mounted, and the upper end thereof is connected by bolts to connecting portions 56 extending to the left and right ends of the horizontal portion. In the center of the horizontal portion, an inverted L is formed so as to overlap the L-shaped locking piece 22 provided on the roof beam side.
A locking piece 57 is provided, and the locking piece is overlapped with the locking piece and bolted.

FIGS. 6A and 6B show an embodiment of a vertical portion 51 and a horizontal portion 55 which are components of the support column 50. FIG. As is clear from the figure, the vertical portion 51 of the support pillar is thin and has a flat appearance, so that even if the vertical portion 51 is erected adjacent to the side of the wing-type roof and the side wall formed by the fan, it is substantially loaded. It does not protrude to the floor side. A hollow rectangular cylindrical member is used to provide strength, and a lower end is formed by inserting a base of a bifurcated fixing portion 52, and the bifurcated portion is bolted to a side frame material to attach the mounting portion. And a lid plate having a bolt hole at the upper end is inserted into the inside and joined to form a connecting portion 53 with the horizontal portion. Horizontal part 55
Is formed by inserting another channel material 59 having an outer shape equal to the inner diameter of the channel into the U-shaped groove of the channel material 58 and joining it, and irons provided with bolt holes at both left and right ends. The block 56 is inserted to extend the connecting portion 56 with the upper end of the vertical portion, and the appearance is formed thin and flat like the vertical portion. With such a configuration, it is possible to reinforce the load in the vertical direction by the overlap of the channel members, and to impart the strength to the stress received at the corner by the iron block of the connecting portion. Horizontal part 55 of support column and roof beam 2
At the crossing point of 0, an angle material is joined to the left and right sides on the roof beam side to provide an L-shaped locking piece 22, and an angle material is also joined to the support columns on the left and right sides to form an inverted L-shape. The locking pieces 57 are provided, and the locking pieces are superposed on each other and connected by bolts.

FIG. 7 shows an embodiment in which the support column 50 is erected inside the fan 25. This is equivalent to a wing truck with a relatively long bed where the middle pillar is not used, or a case where three gantry are locked by two middle pillars. Fans are located. In such a case, supporting columns can be provided at the steps of the side frame material according to the cross-sectional shape of the side frame material and the arrangement of the center pillar and the fan as shown in FIGS. In (a), a center pillar is erected on the upper surface of a side frame member 26 having a substantially U-shaped cross section, and in this case, a hinge 25 is pivotally attached to a side frame member so as to be flush with the side frame member. In (b), the fan 25 protrudes outside the side frame member 26, and the center pillar is also erected outside the same level as the fan.
The vertical portion of the roof beam support column is in contact with the fan inside the fan and is erected inside a step portion 32 between the floor and the floor on the side frame member. This step portion is formed lower than the floor surface as shown in the figure to prevent infiltration of rainwater, and also constitutes a space for installing a stopper for passing a rope for tightening luggage. By arranging the support columns inside, the vertical portion can be provided without protruding to the floor surface side, so that it does not become an obstacle to the cargo handling work place and the space can be effectively utilized.

FIG. 8 shows that one or more bolt holes having a common axis are formed in the vertical portion 51 of the supporting column and the central column 30 in contact with the vertical portion. To reinforce the support columns. The center pillar 30 locks the divided fan and the wing type roof to support and reinforce it and prevents them from being opened during traveling. If
A support column reinforcement structure can be provided. For this reason, it is possible to make the support pillar vertical portion thinner, and it is possible to reduce the weight and to impart sufficient strength.

[0014]

As described above, according to the present invention, the strength of the roof beam is reinforced to prevent its bending, thereby preventing the hinge of the wing type roof and the opening / closing mechanism thereof from being damaged, and the floor surface. It is possible to easily and quickly carry out the cargo handling work without hindering the cargo handling work due to the movement.
In addition, when the square pillar-shaped middle pillar according to the present invention is used, strength can be given to the roof beam and the thickness of the support pillar can be reduced to 30.
Because it can be stored in a thin, flat shape of about mm, the support pillar does not protrude inside the cargo bed, the work space on the floor is not limited, and the roof space is reduced without reducing the load space. The deflection of the beam can be eliminated.

[Brief description of the drawings]

FIG. 1 is a wing vehicle having an arched roof beam support structure according to the present invention.

[Figure 2] Wing vehicle with roof and fan closed

Fig. 3 Detailed view of the state where the roof and fan are locked to the center pillar

FIG. 4 shows an example of a structure in which a middle pillar is erected on a carrier side frame material.

FIG. 5 is a sectional view taken along the line AA of FIG. 1;

FIG. 6: Arch type roof beam support device: horizontal part (a), vertical part (b)

FIG. 7 is an example in which the vertical portion of the arch-type support device is arranged directly in contact with the inside of the fan: when the fan is flush with the side frame material (a), when the fan is arranged outside the side frame material (b) )

Fig. 8: Example of reinforcing the vertical part of the arched roof beam support device with a middle pillar

FIG. 9 is a wing vehicle having a conventional roof beam support device.

[Explanation of symbols]

1: Wing vehicle 2: Carrying bed 3: Floor 5: Supporting column 6: Adjustment section 7: Elastic section 11: Front wall 1
2: Gate frame 13: Kannon type door 20: Roof beam 21: Wing type roof 22: L-shaped locking piece 2
5: Fan 26: Carrier side frame material 27: Hinge 28:
Mounting bracket 29: engagement groove 30: center pillar 31: engagement guide 32: stepped portion 33: locking hole 40:
Spring lock for mounting and dismounting 45: Spring lock for attaching and detaching wings 50: Arch-type support column 51: Vertical part 52: Fixed part 53: Connection part with horizontal part 55: Horizontal part 56: Connection part with vertical part
57: Reverse L-shaped locking piece 58:59: Channel material
60: bolt

Claims (4)

[Claims] 1. A wing car covered by a pair of right and left roofs integrating a side portion of a packing box and a roof portion, wherein a supporting device for a roof beam to which the wing type roof is pivoted is provided at a left and right side end of an intermediate position of the loading platform. A wing-shaped vehicle having a U-shaped arch-shaped support column formed by a pair of left and right vertical portions having a flat cross section and a horizontal portion having a flat cross section provided between upper ends of the vertical portions. Arched roof beam support device. 2. An arch type roof beam support for a wing vehicle according to claim 1, wherein a lower end of a vertical portion of said arch type support column is inserted into a locking hole provided in a carrier side frame material to be erected. apparatus. 3. A vertical section and a horizontal section of the arch-type support column each have a hollow rectangular cylindrical shape, and a fixing section is extended at a lower end of the vertical section and a horizontal section is formed at an upper end. A connecting portion with the vertical portion is provided at each of the left and right ends of the horizontal portion, and the connecting portion and the connecting portion at the upper end of the vertical portion are connected in a U-shape with bolts. The arch type roof beam support device for a wing wheel according to claim 1 or 2, wherein: 4. The arch-type roof beam support of a wing vehicle according to claim 1, wherein a vertical portion of the arch-type support column is fixed to a center column for locking a wing type roof. apparatus.