JP2789552B2 - Auxiliary cargo handling equipment for vehicles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cargo handling assisting device for a vehicle which is mounted on a cargo truck floor of a truck and is used to assist cargo handling on the cargo truck.

[0002]

2. Description of the Related Art Conventionally, in order to facilitate the loading and unloading of cargo on the bed surface of a truck, a roller mechanism having a roller frame rotatably mounted on a roller frame is provided on the bed surface of a vehicle. 2. Description of the Related Art A cargo handling assisting device for a vehicle that is provided to be able to move up and down is known.

[0003]

By the way, the cargo handling assisting device of this kind has conventionally been generally made of steel.
In the case of steel, there are the following problems.

(1) There is a drawback that the weight of the cargo handling assist device is increased, and the weight of the cargo that can be loaded on the loading platform is reduced. In particular, in order to improve the problem of overloading of trucks, which has become a hot topic in recent years, the weight of the apparatus has been required to be reduced.

(2) There is a problem that rust is generated due to use and repainting is required, and the rust impairs aesthetic appearance.

(3) In the case of steel, a large number of welding steps are required to assemble each member, and the welding cost is high.

SUMMARY OF THE INVENTION In view of the above, the present invention comprises a main member made of an aluminum alloy mold, and by devising an assembling structure of each member, welding of the main member is made to be welding-free. It is an object of the present invention to provide a cargo handling assisting device for a vehicle, which is easy and can be reduced in weight.

[0008] Other objects and novel features of the present invention will become apparent in embodiments described later.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is to fix a mounting frame in a concave portion of a bed portion of a vehicle and to rotatably mount a number of load handling auxiliary rollers on a roller frame. A roller mechanism is provided in the mounting frame so as to be able to move up and down, and the driving mechanism drives the roller mechanism up and down.
The loading support roller is made of an aluminum alloy, and the mounting frame has an opening at an upper surface, and a mounting groove for fixing a lift roller receiving member to a bottom of both inner side surfaces at a predetermined interval.
Plate-shaped ribs on the inner sides of the lower side
And the dropping of the lift roller receiving member
Was included part is composed of aluminum alloy type material to which the plate-shaped ribs are cut, the lift roller receiving member,
A roller receiving main body having an inclined surface on which a lift roller pivotally supported at a predetermined interval on the roller frame side and a base portion abutting on an inner bottom surface of the mounting frame; and fitted in use the groove is fixed
The mounting fitting portion have both sides is characterized by being composed of an aluminum alloy type material that.

The mounting fitting portion of the lift roller receiving member has a thickness decreasing toward a leading end in a fitting direction with the mounting groove, and a rear end of the base portion in a fitting direction. the thicker than the groove for mounting in contact with the end portion of the large and the groove for the attachment to the receiving the lifting rollers
A configuration may be adopted in which a stopper portion that positions the member at a predetermined position is formed.

[0011]

[Action] In handling assistance device for a vehicle of the present invention, low
The roller frame of the roller mechanism and
It is made of Lumi alloy, and the mounting frame and the roller receiving member for the lift are made of aluminum alloy, so that the weight can be reduced. Conventionally, the mounting frame and the roller receiving member for the lift are welded with steel. However, the time and labor for welding them are not required. Further, the lift roller receiving member is fixed to the mounting frame by fitting the mounting fitting portion of the lift roller receiving member of the aluminum alloy type material into the mounting groove of the mounting frame of the aluminum alloy type material. Therefore, no welding work is required for installation, eliminating welding costs,
It is possible to eliminate the occurrence of distortion of the shape member due to welding. By adopting such a structure for fixing the lift roller receiving member to the mounting frame, the manufacturing process can be simplified.

Further, since the mounting frame, the roller receiving member for lift and the roller mechanism can have a welding-less structure,
By performing alumite treatment at the time of the mold material (material), it is possible to provide a high-quality product without the need for painting and without rust. In the case where the anodized aluminum is not painted as described above, the appearance becomes an aluminum glossy surface, which is particularly suitable for a truck having an aluminum alloy carrier.

In the case where the mounting fitting portion of the lift roller receiving member is reduced in thickness toward the front end in the fitting direction with the mounting groove, the lift is inserted into the mounting groove of the mounting frame. It is easy to fit when fitting the mounting fitting part of the roller receiving member, and press-fit with sufficient strength to the mounting groove part in the thick part on the rear end side of the fitting part in the fitting direction , Can be fitted. Further, in the case where a stopper portion which is larger in thickness than the mounting groove portion and is in contact with an end portion of the mounting groove portion is formed at a rear end of the base portion of the lift roller receiving member in the fitting direction, the lift to the mounting frame is provided. The fitting position of the roller receiving member for lift can be defined by fitting the stopper portion into contact with the end of the mounting groove when the roller receiving member for fitting is in contact with the stopper portion, thereby facilitating the positioning and improving the assembling workability. be able to. As a result, it is not necessary to use welding or screwing for fixing the lift roller receiving member.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a vehicle cargo handling assisting device according to an embodiment of the present invention.

FIG. 1 to FIG. 4 show a main structure of a vehicular cargo handling assisting device according to an embodiment of the present invention, and FIG. 5 shows an entire structure. 6 to 9 show the configuration of a lift roller receiving member, FIG. 10 shows a mounting frame, and FIGS.
Shows the mounting structure of the lift roller receiving member.

As shown in FIG. 5, the truck 1 has a carrier (packing box) 2 fixed to a vehicle chassis. Are formed in parallel with the longitudinal direction.

As shown in FIGS. 1 to 5, mounting frames 5 are fixed to these recesses 4, respectively.
A plurality of roller receiving members 6 for lifts are fixed at equal intervals on the bottom of the frame, and a roller mechanism 8 in which a number of rollers are rotatably mounted on a roller frame 7 is provided in the mounting frame 5 so as to be movable up and down. I have. Driving means 9 for driving the roller mechanism 8 up and down is provided below each of the mounting frames 5.

The mounting frame 5 is made of an extruded aluminum alloy material. As shown in FIG. 10, the front section has a substantially U-shaped cross section (opened at the top ), and flanges 11 are formed at both upper ends thereof. The plate-like ribs 12 are integrally provided at the lower positions on both inner side surfaces. Due to the plate-like ribs 12 projecting in the lateral direction, mounting groove portions 12a for fixing the plurality of lift roller receiving members 6 to the bottom of both side surfaces inside the mounting frame 5 are equally spaced at predetermined intervals. Is formed. As shown in FIG. 11, the plate-shaped rib 12 is cut off at a portion S where the lift roller receiving member 6 is dropped into the mounting frame 5. Normally, since the plate-like ribs 12 of the extruded aluminum alloy material on which the mounting frame 5 is formed are continuous, the plate-like ribs 12 corresponding to the cut-in portions S are cut off by post-processing.

As shown in FIG. 4, the mounting frame 5 is mounted on the concave portion 4 by the upper surfaces of the flanges 11 on both sides and the loading floor 3.
A is arranged so as to coincide with A, and when the cargo bed floor portion 3 is made of, for example, wood, it is fixed using a wood screw 13.

The lift roller receiving member 6 is shown in FIG.
As shown in FIG. 9 to FIG. 9, a pair of roller receiving main bodies 22 having a constant inclined surface 21 on which a lift roller 34 of a roller mechanism 8 to be described later rides, and a base 23 contacting the inner bottom surface of the mounting frame 5 And is made of an aluminum alloy mold (die-cast molded product). The pair of roller receiving main bodies 22 has a triangular side shape, and has a width corresponding to a pivot interval between the lift rollers 34 so that the pair of lift rollers 34 can move on the respective inclined surfaces 21. They are integrally erected on the base portion 23, respectively. The base portion 23 has, on both left and right sides, mounting fitting portions 24 that fit into the mounting grooves 12a formed in the mounting frame 5. In the mounting fitting portion 24, the rear end side in the fitting direction to the mounting groove portion 12a has a thickness slightly larger than the vertical width of the mounting groove portion 12a, and the thickness decreases toward the front end in the fitting direction. Tapered part 25
A stopper 26 having a sufficiently larger thickness than the mounting groove 12a is formed at the rear end of the base 23 in the fitting direction. A concave groove having a depth slightly lower than the height of the top surface of the distal end of the tapered portion 25 between the stopper portion 26 and the rear end of the tapered portion 25, and extending greatly inward from the lateral width of the fitting portion 24 for attachment. 27 are formed.

In order to fix the plurality of lift roller receiving members 6 to the mounting frame 5, as shown in FIG. 11, the plate-like ribs 12 are not formed (the mounting groove 12 a at the bottom of the mounting frame 5 is closed). The roller receiving member 6 for lift is placed on the drop-in portion S (not formed), and the fitting portion 24 for mounting is mounted on the mounting groove portion 12 as shown by the arrow P from the front end side in the fitting direction.
13 and press-fitted until the end of the plate-like rib 12 for forming the mounting groove 12a as shown in FIG. 13 abuts against the stopper 26, and as shown in FIG. 12 and FIG. The lift roller receiving members 6 are fixed at the respective positions. At this time, since the concave groove 27 is formed in a portion of the tapered portion 25 slightly thicker than the mounting groove 12a, the corner 2 is formed on the distal end side of the concave groove 27 in the fitting direction.
3a is formed, and the corner 23a is pressed against the plate-like rib 12 and cuts into the surface of the plate-like rib 12, thereby preventing the lift roller receiving member 6 from coming off in the opposite direction. Can act.

As shown in FIG. 4, the roller frame 7 of the roller mechanism 8 is formed by connecting and integrating a pair of parallel frames 31 made of a pair of aluminum alloy mold members having a U-shaped cross section with a bracket 44. Are fixed at equal intervals. Every few pins (every five in FIG. 5) are provided on the pins 32, and a pair of lifting auxiliary rollers 33 having a width sufficiently smaller than the inner width of the mounting frame 5, and a pair of lifts having a slightly smaller diameter and a smaller width than the auxiliary loading rollers 33 on both sides thereof. Roller 34
1 to 3, the other pins 32 have the same diameter as the cargo handling auxiliary roller 33 and are slightly narrower than the inner width of the mounting frame 5 as shown in FIGS. 1 to 3.
5 is rotatably supported, and is a load-handling auxiliary roller 3
The portions 35 project from the upper end of the parallel frame 31. These cargo handling auxiliary rollers 33 and 35 and the lift roller 34 are made of an aluminum alloy mold (die-cast product).

As described above, the roller mechanism 8 in which the loading / unloading auxiliary rollers 33 and 35 and the lift roller 34 are rotatably mounted on the roller frame 7 is housed in the mounting frame 5 and provided in pairs at equal intervals. The lift rollers 34 are fixed to the mounting frame 5 at equal intervals (the same as the arrangement intervals of the lift rollers 34) on the inclined surfaces 21 of the pair of roller receiving body portions 22 of the lift roller receiving member 6. Is placed.

As shown in FIGS. 1 to 4, the driving means 9 includes a driving cylinder (hydraulic cylinder) 4 provided in a cylinder box 41 fixed to the bottom surface of the mounting frame 5.
2 and a rotating arm 43.

[0025] The cylinder box 41 is
It is fixed to the mounting frame 5 so as to project downward. On the upper surface of the cylinder box 41 and the lower surface of the mounting frame 5,
An opening hole 45 communicating between the two is formed. The driving cylinder 42 has a rear end side (main body side) fixed inside the cylinder box 41 so that a telescopic rod 46 on the front end side can project obliquely upward from the opening hole 45, and an external hydraulic drive source ( (Not shown).

The rotating arm 43 has a pair of arm portions 48 integrally connected to both sides of a round bar-shaped contact portion 47 on the upper end side, and the lower end side of the arm portion 48 is fixed to the cylinder box 41. It is rotatably attached to the support shaft 49. The round bar-shaped contact portion 47 can move about the support shaft 49 as a rotation center while maintaining a state parallel to the cargo handling auxiliary rollers 33 and 35 as the rod 46 of the drive cylinder 42 expands and contracts. I have.

The bracket 44 is made of an aluminum alloy material having a substantially U-shaped flat cross section, and is fixed to a specific position of the roller frame 7 (here, the position of the second roller from the rear) with a bolt 51 and a nut 52. Have been. In the mounted state, the rear surface of the bracket 44 faces slightly obliquely downward, and a contact portion receiving member 53 having a substantially L-shaped side section is fixed to the rear surface of the bracket 44. In addition, the cargo handling auxiliary roller 35 corresponding to the arrangement position of the bracket 44 is
In consideration of the thickness of No. 4, a narrower one is used.

The contact portion receiving member 53 on the bracket 44 and the tip of the rod 46 of the drive cylinder 42 face each other, and a round bar-shaped contact portion 47 at the upper end of the rotating arm 43 is located between the two.
Are in contact with each other. The rotating arm 43 rotates about the support shaft 49 as the rod 46 of the drive cylinder 42 expands and contracts, and pushes the bracket 44 via the contact portion receiving member 53 that is in contact with the round bar-shaped contact portion 47 in front. By moving back and forth, the roller mechanism 8 can be driven up and down.

Here, the operation of this embodiment will be described.

During normal running of the vehicle other than during cargo handling,
When not using the cargo handling assist device, as shown in FIG.
The rod 46 is in a contracted state without operating the drive cylinder 42, and the roller mechanism 8 moves the lift roller 34 by its own weight to the inclined surface 21 of the lift roller receiving member 6.
It is lowered to the lowering position so as to be in contact with the lower side, and is stored in the mounting frame 5 in a state where the cargo handling auxiliary rollers 33 and 35 are retracted from the loading floor 3A in FIG.

When the drive cylinder 42 is operated to extend the rod 46 from the state shown in FIG. 1, the tip of the rod 46 pushes the round bar-shaped contact portion 47 to rotate the rotary arm 43 in the arrow X direction. Along with this, the round bar-shaped contact portion 47 slides on the contact portion receiving member 53 that is in contact with the
4, a lateral (rightward in FIG. 1) force is applied to the bracket 44. As a result, the lift rollers 34 provided at a plurality of positions of the roller mechanism 8 climb the corresponding inclined surfaces 21 of the lift roller receiving member 6, and the roller mechanism 8 is moved in the arrow Y direction, and as shown in FIG. It is pushed up from the inside of the frame 5 and a part of the cargo handling auxiliary rollers 33 and 35 is in a state of protruding from the cargo bed floor 3A. Therefore, at this time, by placing the cargo on the roller mechanism 8, the cargo can be easily horizontally moved in the front-rear direction by the cargo handling auxiliary rollers 33 and 35. Therefore, it is possible to simplify and save labor in loading and unloading work on the bed floor.

According to this embodiment, the following effects can be obtained.

(1) The lift roller receiving member 6 is made of an aluminum alloy mold, and the lift roller receiver 6 is attached to the mounting frame 5 made of an aluminum alloy extruded mold.
Is fixed by fitting the mounting fitting portion 24 on the lift roller receiving member 6 side into the mounting groove portion 12a on the mounting frame 5 side, so that welding work or mounting work with screws is unnecessary. In addition, the manufacturing process can be simplified.

The fixing of the lift roller receiving member 6 to the mounting frame 5 is performed by mounting the lift roller receiving member 6 on the mounting fitting portion 24 of the lifting roller receiving member 6 so that the rear end side of the mounting groove 12a in the fitting direction is the mounting groove 12a. Tapered portion 25 having a thickness slightly larger than the vertical width and having a smaller thickness toward the front end in the fitting direction.
Is formed, the fitting is easy, and sufficient fixing strength can be obtained. In addition, when the lift roller receiving member 6 is mounted, the stopper portion 2
6 is fitted until it comes into contact with the end of the plate-like rib 12 for forming the mounting groove 12a, the fixing position of the lift roller receiving member 6 can be defined, the positioning becomes easy, and the assembling workability is improved. Can be achieved.

(2) Since most of the mechanisms such as the mounting frame 5, the lift roller receiving member 6, the roller mechanism 8 and the bracket 44 are made of aluminum alloy molds, they can be used in comparison with conventional steel devices. Significant weight reduction can be achieved. Therefore, it is possible to increase the substantial loading weight of the cargo of the truck.

(3) The assembly of the mounting frame 5, the lift roller receiving member 6, and the roller mechanism 8 can be performed by alumite treatment at the time of the mold material (material) because the welding-less structure is possible. It is possible to provide high quality products without rust and without rust. In the case where the anodized aluminum is not painted as described above, the appearance becomes a glossy surface of aluminum, and the appearance becomes good, which is particularly suitable for a truck having an aluminum alloy carrier.

Although the embodiments of the present invention have been described above, it is obvious to those skilled in the art that the present invention is not limited to the embodiments and various modifications and changes can be made within the scope of the claims. Would.

[0038]

As described above, according to the cargo handling assistance device of the present invention, since the mounting frame, the roller receiving member for the lift, and the like are made of the aluminum alloy mold, the weight can be reduced. Since the fixing of the lift roller receiving member to the mounting frame is performed by fitting the mounting fitting portion of the lift roller receiving member side into the mounting groove of the mounting frame side, welding work is unnecessary. In addition to eliminating the welding cost, it is possible to eliminate the occurrence of distortion of the mold material due to welding, obtain sufficient fixing strength, and simplify the manufacturing process.

Further, since the mounting frame, the roller receiving member for lift and the roller mechanism can be assembled in a welding-less structure, it is easy to assemble and assemble. Accordingly, it is possible to provide a high-quality product that does not require coating and does not generate rust, and when paintless by alumite treatment, the appearance becomes a glossy surface of aluminum and the appearance can be improved.

[Brief description of the drawings]

FIG. 1 is an essential part cross-sectional view of a vehicle cargo handling assistance device according to an embodiment of the present invention, showing a state where a roller mechanism is lowered.

FIG. 2 is a side sectional view showing a state where a roller mechanism is raised in the embodiment.

FIG. 3 is a main part plan view showing a state where a roller mechanism is lowered in the embodiment.

FIG. 4 is a main part back sectional view showing a state where a roller mechanism is lowered in the embodiment.

FIG. 5 is an overall configuration of the embodiment, showing a configuration in which a cargo handling assistance device is provided on a bed portion of a lorry (however,
FIG. 4 is a plan view (without a roof of a cargo bed).

FIG. 6 is a plan view showing a lift roller receiving member used in the embodiment.

FIG. 7 is a rear view of the same.

FIG. 8 is a sectional side view of the same.

FIG. 9 is a side view of the same.

FIG. 10 is a front view showing a mounting frame used in the embodiment.

FIG. 11 is a partial plan view showing a procedure for attaching a lift roller receiving member to an attachment frame.

FIG. 12 is a back sectional view showing a state in which a lift roller receiving member is attached to an attachment frame.

FIG. 13 is a sectional side view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lorry 2 Carrier 3 Carrier floor 4 Concave part 5 Mounting frame 6 Lifting roller receiving member 7 Roller frame 8 Roller mechanism 9 Driving means 12 Plate-like rib 12a Mounting groove 21 Sloping surface 22 Roller receiving body 23 Base part 24 Mounting Fitting part 25 Taper part 26 Stopper part 27 Concave groove 31 Parallel frame 32 Pin 33,35 Loading support roller 34 Lifting roller 41 Cylinder box 42 Drive cylinder 43 Rotating arm 44 Bracket 45 Open hole 46 Rod 47 Round rod-shaped contact Part 53 Contact part receiving member

Claims (2)

(57) [Claims] 1. A driving mechanism, wherein a roller mechanism having a mounting frame fixed to a concave portion of a bed portion of a vehicle and a plurality of loading and unloading auxiliary rollers rotatably mounted on a roller frame is provided in the mounting frame so as to be movable up and down. In the cargo handling assisting device for a vehicle that drives the roller mechanism up and down, the roller frame and the cargo handling assisting roller are
The mounting frame (5) has an upper surface opened, and mounting grooves (12a) for fixing a lift roller receiving member (6) are formed at predetermined intervals at a bottom portion on both inner side surfaces. Inside
Have plate-like ribs (12) integrally on both sides below
Drop portion of the roller receiving member for lift
(S) is made of an aluminum alloy mold material from which the plate-like rib is cut, and the lift roller receiving member (6) is a lift roller pivotally supported at a predetermined interval on the roller frame side.
(34) Roller receiving body with inclined surface on which it rides
(22) and a base portion abutting on an inner bottom surface of the mounting frame.
(23) , and the base portion is the mounting groove portion.
The mounting fitting part (24) fitted and fixed to (12a)
A cargo handling assisting device for a vehicle, wherein the assisting device is provided on both sides and is made of an aluminum alloy mold. 2. The mounting fitting portion (24) of the lift roller receiving member (6 ) is provided with the mounting groove (12).
The thickness of the mounting portion is smaller at the rear end of the base portion (23) in the fitting direction than the mounting groove portion (12a). given the lift roller receiving member to abut against the end
Stopper to position by forming a (26) according to claim 1
A cargo handling assistance device according to the above.