JPH057894Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a collapsible wheeled pallet. More specifically, it can be very easily folded or assembled while standing upright, and folded wheeled pallets can be placed side by side and used together with unfolded wheeled pallets to form a van-like structure for transportation. This relates to wheeled pallets that can be stacked together in an orderly manner in the luggage compartment of a vehicle.

(Prior Art) A foldable wheeled pallet (hereinafter simply referred to as a pallet) A having a shape as shown in FIG. 23a is known. This pallet A consists of a narrow front end wall 1 and a rear end wall 2, a wide side wall 3, a foldable side wall 4, and a bottom wall 5. one pair of free wheels 6, 6, 7,
It has 7.

As shown in FIG. 23b, this pallet A can be folded into an L-shaped state when viewed from above, with the front end wall 1 and side walls 3 fixed. However, after removing the bottom wall 5, one half 4a of the side wall 4 is placed on the outside of the front end wall 1.
The other half 4b of the side wall 4 is folded to the outside of the rear end wall 2, and the rear end wall 2 is further folded to the inside of the side wall 3 to form the shape A' (number 4). As shown in Figure 23 b), it can be folded, and as shown in Figure 23 c, the folded items can be stacked vertically. .

Then, as shown in Fig. 23d, when the unfolded pallet A and the folded pallet A' are loaded together in the luggage compartment of the van type vehicle 8 for transportation, the folded pallet is Because it takes up space, the number of items that can be loaded is small, and loading efficiency is inferior.

Also, the palette A′ folded in this way is
When moving to another location, it extends and moves in the direction of arrow a in FIG. 23a. However, as shown in FIG. 24, when loading the pallet A with the side wall facing parallel to the width direction of the vehicle, the pallet is loaded from the platform P through the span plate 61, but the pallet A is loaded in a 90° direction on the span plate 61. After converting it, I shoved it into the luggage compartment. At this time, if all four corners had swivel wheels, the safety during movement would be extremely poor.

Therefore, as a measure to improve safety during transportation, a system was devised in which the front wheels were fixed wheels and the rear wheels were free wheels, and the vehicle was placed in the luggage compartment in the same direction from the top of the platform P as shown in Figure 25. I made it possible.
However, when this pallet is folded, its movement in the direction of the arrow b in Fig. 23b is relatively stable, but when it is juxtaposed as shown in Fig. 23c, the movement in the direction of arrow b in Fig. 23b is relatively stable.
Although it is necessary to move in the direction of arrow c in Figure b, this movement was not possible because the front and rear wheels were fixed wheels.

(Problems to be Solved by the Invention) In view of the problems of the prior art, the present invention aims to maximize loading efficiency when unfolded pallets and folded pallets are mixedly loaded. The object of the present invention is to provide a pallet that can be moved smoothly even when folded and vertically arranged side by side.

(Means for solving problems by invention) Narrow front end wall 10, rear end wall 11, and front end wall 1
an opening/closing side wall 12 consisting of at least one pair of opening/closing doors 12a, 12b each hinged to a vertical frame 20 on one side of the opening/closing side wall 11; a locking device 29 for the opening/closing side wall 12; A bendable wall 13 whose side part is hinged to the other vertical frame 19 of the end wall 11 and whose middle part is hinged so that it can be bent inward, and which can be folded upward relative to the rear wheel truck. bottom wall 1 attached to
4, a front wheel truck 51 equipped with a pair of left and right wheels 17 located at the lower end of the front end wall 10, and a rear end wall 11.
It consists of a rear wheel truck 50 equipped with a pair of left and right wheels located at the lower end of the vehicle, and when folded, the front end wall 10 and the rear end wall 11 are brought close to each other in a parallel state.

The hinges of the opening/closing door are fixed to the vertical frame of the end wall 1
A first hinge piece is pivotally connected between the pair of hinge brackets with a pin and has an inclined surface on the side opposite to the outer surface of the vertical frame, and a first hinge piece is further pivotally connected to this first hinge piece with a pin, and the end face of the side frame of the opening/closing door is It consists of a second hinge piece fixed to the top and can be opened and closed 270 degrees.

A rod whose upper and lower ends are pivotally supported by bearing plates attached to the door horizontal frame, and whose free end spans the two door vertical frames on the free end side of the left and right opening/closing doors, and whose free end is installed between the upper and lower door vertical frames. A locking device consisting of a handle that can be inserted and removed from a handle receiver provided on the door is installed flush with the outer surface of the door aggregate to prevent interference with others.

The lateral vibration prevention device is composed of a lateral vibration prevention plate whose one end is fixed to the vertical frame of one opening/closing door and whose cross section is cross-shaped so as to straddle the vertical frame of the other door, and a presser plate which is fixed to the lock rod, Perfect prevention of sideways shake.

Equipped with an intermediate shelf that can be stored closely against the end wall,
When folded or not in use, it can be hung vertically on an end wall and kept close to it.

(Example) This will be explained based on the drawings. FIG. 1 shows a wheeled pallet (hereinafter simply referred to as pallet) B according to the present invention. Pallet B has a narrow front end wall 10 and a rear end wall 1.
1, a wide opening/closing side wall 12, a bendable wall 13 facing the opening/closing side wall, a bottom wall 14 (FIG. 2), an intermediate shelf board 15, and a pair of fixed rings 16, 16.
It consists of a pair of free wheels 17, 17.

The opening/closing side wall 12 has a pair of upper and lower opening/closing doors 12a, 1.
2a, 12b, 12b, each hinge 1
It is installed so that it can be opened and closed 270 degrees at 8a. The bendable wall 13 can be bent inward at the center with a hinge 18c, and on both sides there are hinges 1 on the end walls that can rotate 90 degrees.
It is attached with 8b. In addition, in the case shown in the figure, the front and rear end walls and side walls are each made of mesh boards.
It is not necessarily limited to this if necessary.

The configuration of each part will be explained in more detail below. The front end wall 10 will be explained with reference to FIG.
Note that since the rear end wall 11 also has a similar configuration, only the front end wall 10 will be described. The front end wall 10 is a vertical frame 1
9 and 20, an upper horizontal frame 21, an intermediate horizontal frame 22, and a connecting member 23 of a pair of left and right free wheels 17, 17, and a mesh plate 24 is stretched inside the frame.

Details of the opening/closing side wall 12 will be explained with reference to FIG. 3. As mentioned above, the opening/closing side wall 12 has two opening/closing doors 12a, 12a and 12b, 1 for each pair of upper and lower doors.
2b, with hinges 18 on the left and right vertical frames 20, respectively.
It can be opened and closed 270° with a.

The hinge 18a is a pair of upper and lower hinge brackets 2 fixed to the outer surface of a vertical frame 20 having a square cross section.
It consists of a first hinge piece 25b which is pivotally connected between 5 and 25 by a pin 25a, and a second hinge piece 25d which is further pivotally connected to this by a pin 25c. It is fixed to the end face of the side frame (Fig. 26). The first hinge piece 25b has an inclined surface 25e on the side facing the outer surface of the vertical frame 20, so that the first hinge piece 25b and the vertical frame 20 do not interfere when the door 12a opens 270 degrees as shown in FIG. , and also serves as a rotation restriction device that suppresses further rotation.
The central free end side of the opening/closing door 12a is framed by a door vertical frame 26, and the upper and lower sides are framed by door horizontal frames 27, 28, and a mesh plate 24 is stretched within the frame.

29 is a locking device for the opening/closing side wall 12a or 12b. 29a is a lock rod, and its upper and lower ends are connected to bearing plates 30 (first
(Fig. 8). A handle 31 is pivotally attached to the lock rod 29 so as to be rotatable in the vertical direction. The handle 31 has a central portion that straddles the vertical frames 26 and 26 of the two left and right opening and closing doors 12a (or 12b), and a free end that is fixed to an aggregate 32 provided between the upper and lower horizontal door frames 27 and 28. It can be inserted into and removed from the groove-shaped handle receiver 33 (see arrow). 34 is a horizontal vibration prevention plate fixed to one door vertical frame 26;
It has a cross-sectional shape across 6, and has a rock-shaped 29
When pressed inward by a presser plate 35 fixed perpendicular to a, the left and right opening/closing doors 12a, 12a or 12b, 12b are pressed simultaneously to prevent lateral vibration. Since the locking device described above can be housed flush with the outer surface of the door aggregate, it will not interfere with other pallets when the pallets are juxtaposed. Although the above opening/closing doors have been described as a pair of upper and lower opening/closing doors 12, the present invention is not limited to this, and it is also possible to use one upper and lower door and a pair of left and right doors.

FIG. 8 shows the bendable wall 13. bendable wall 1
3 is framed by vertical frames 37, 37 on both sides, an upper horizontal frame 38, an intermediate horizontal frame 39, and a lower horizontal frame 40, and a mesh board 36 is stretched inside the frame. And the side is vertical frame 2
0 with a hinge 18b, and the central part is an adjacent vertical frame 37
As shown by the imaginary lines in FIG. 10, the comrades are attached to the inside by hinges 18c so that they can be bent in a V-shape.

FIG. 11 shows the intermediate shelf board 15. The intermediate shelf board is made up of two boards 15a and 15b which are foldably combined at the center in the longitudinal direction by a hinge 41. Each board is surrounded by a horizontal frame 42 and a vertical frame 43, respectively. As shown in FIG. 13, a key-shaped member 44 is fixed to the side of the vertical frame 43, and is hooked onto the horizontal frame 22 to hold the intermediate shelf board 15 as shown in FIG. It's summery. The bending structure of the intermediate shelf board 15 is such that when there is no cargo on the intermediate shelf board 15 and the cargo is being carried in or out of the bottom wall 14, the intermediate shelf 15 is bent upward so that it does not interfere with the work. This is to do so.

FIG. 15 shows the bottom wall 14. The bottom wall 14 is surrounded on all four sides by horizontal frame members 45 and vertical frame members 46, reinforced by a plurality of intermediate reinforcing members 47, and has a floor plate 48 stretched within the frame. Reference numeral 49 denotes a hinge piece provided protruding from one end of the horizontal frame member 45, and a hinge piece 59 of a rear wheel truck (FIG. 17), which will be described later, is inserted into a hole 49a provided in the hinge piece.
This is pivotally attached to the bottom wall 14 with a pin, and the bottom wall 14 can be folded upward at this hinge portion.

FIG. 17 shows details of the rear wheel truck 50 and the front wheel truck 51. A pair of fixed wheels 16, 16 of the rear wheel truck 50 are attached to the lower portions of both ends of the connecting member 52. The connecting member 52 has an L-shaped cross section, and vertical mounting pieces 53 are attached to the vertical sides thereof, and are adapted to be fixedly attached to the vertical frames 19 and 20 of the rear end wall 11.

Similarly, a pair of free wheels 17 of the front wheel truck 51,
17 are also attached to the lower portions of both ends of the connecting member 54 having an L-shaped cross section. Further, vertical mounting pieces 55 are attached to both ends of the connecting member 54, and are attached to the front end wall 1.
It is designed to be fixed and attached to vertical frames 19 and 20 of 0.

FIG. 19 shows the folding mechanism of the wheel truck. The front and rear wheel carts 51 and 50 approach each other as the pallet B folds, and when they come into complete contact as shown in FIG. 19, they are prevented from coming apart by the connecting pin 56. At this time, the upper parts of the front and rear wheel trucks 51 and 50, that is, the front end wall 10 and the rear end wall 11, also approach at the same time, but the front end wall 10 and the rear end wall 1
1, that is, the free end side is in an unstable state. Therefore, a hook 60 as shown in FIG. 22f is provided. This hook 60 pivots a connecting rod 60a to one vertical frame 20 of the opening/closing side wall 12, and the connecting rod 60a
A recess 60b is provided at the free end of Oa.

On the other hand, a protrusion 60c is fixed to the other vertical frame 20, and when the front end wall 10 and the rear end wall 11 approach, the recess 60b of the connecting rod 60a is engaged with the protrusion 60c, and the front end wall 10 and the rear end wall 11 are kept at a constant interval to stabilize the space. This hook 60 may also be provided on the bendable wall 13 side, and by doing so, it can be stabilized.

Returning to FIG. 17 again, the rear and front wheel trucks 50, 51 are provided with a pair of abutting pieces 57 at their ends, so that these ends are abutted against each other. Note that a connecting piece 58 is fixed to one wheel truck 51, and its free end is longer than the abutting piece 57. Then, when the abutting pieces 57, 57 are butted together, the hole 58a provided in the connecting piece 58 and the abutting piece 57 are connected to each other.
By inserting the connecting pin 56 into the hole 58b provided in the rear wheel bogie 50, 51, the rear and front wheel bogies 50, 51 are integrated. A hinge piece 59 connects the hinge piece 49 provided at the end of the bottom wall 14. Second
Figures 0 and 21 show pallet B with bottom wall 14 placed on it.
This shows the state of the connection part when assembled. At this time, the horizontal frame material 45 of the bottom wall 14 covers the connection piece 58 and the paired abutment pieces 57, and the horizontal frame material 45 is also provided with a hole. A connecting pin 56 is inserted therein.

Note that 55a is a regulating piece attached to the vertical mounting piece 55 to prevent the floor plate 48 constituting the bottom wall 14 from springing upward. and connection pin 5
6 and the regulating piece 55a, the pallet B is assembled into a strong box shape to prevent deformation of the pallet B during movement.

In addition, in the above explanation, pallet B is intermediate shelf board 1.
Although the case where the intermediate shelf board 15 is installed has been described, it can be used even if the intermediate shelf board 15 is removed. In this case, the intermediate shelf board 15 is suspended inside the bendable wall 13.
This prevents the bendable wall 13 from being bent inward.

(Function) The pallet folding method of the present invention will be explained below with reference to FIG.

1 Turn the left and right opening/closing side walls 12a of the wheeled pallet B (Fig. 22a) 270° to the side to move the opening/closing side walls forward/
Lay it on the rear end wall and open it. (Figure 22b).

2. Remove the intermediate shelf board 15 and stack it on the inside of the front end wall 10. (Figure 22c).

3 Turn the bottom wall 14 upwards around the lower end,
It is placed upright inside the rear end wall 11 (FIG. 22d).

4. While bending the bendable wall 13 inward, the front end wall 10 and the rear end wall 11 are drawn together to bring the front wheel truck 51 and the rear wheel truck 50 into close contact.
(Figure 22e).

5 With the hook 60 (FIG. 22 f), both end walls 50,
51 from opening.

6. Place the folded wheeled pallets B' side by side in an upright position and store them in the luggage compartment of a van-type vehicle, etc. (Fig. 22g).

(Effect) The wheeled pallet has a narrow front end wall 10 and a rear end wall 1.
1, an opening/closing side wall 12 consisting of a pair of opening/closing doors each hinged to a vertical frame on one side of the front end wall 10 and a rear end wall 11, and a side wall 12 on the other vertical frame of the front end wall 10 and rear end wall 11. a bendable wall 13 whose middle part is hinged so that it can be bent inward, an intermediate shelf 15 and a bottom wall 14, and a pair of free wheels 17 fixed to the lower end of the front end wall 10. The front wheel truck 51 is fixed to the lower end of the rear end wall 11, and the rear wheel truck 50 is provided with a pair of fixed wheels 16.

With this configuration, luggage can be loaded and unloaded from the opening/closing side wall. In addition, since the middle shelf and bottom wall are detachably attached, it is not only possible to load items into two levels, but also to stack them on the end wall, so there is no problem when folding.
This can be done easily.

The opening/closing side wall can be opened 270 degrees, and the bendable wall facing it can be bent into a V-shape, so it can be folded extremely compactly and can be loaded together with open pallet B in a van-type vehicle, etc. However, it can be loaded efficiently.

A wheel truck is attached to the lower part of the front and rear end walls, and can be folded at the same time as the end walls.Moreover, even when folded, the distance between the free wheels and fixed wheels does not change, making it easy to move the folded object. This can also be done smoothly in a standing position.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a wheeled pallet. FIG. 2 shows a state in which the opening/closing door is opened. Figure 3 is a front view of the opening/closing side wall of the wheeled pallet. Figure 4 is a left side view of Figure 3. FIG. 5 is a - and '-' sectional view of FIG. 3. FIG. 6 is a cross-sectional view taken from FIG. FIG. 7 is a cross-sectional view of FIG. 4. FIG. 8 is a back view of FIG. 3 and a front view of the bendable wall. FIG. 9 is a cross-sectional view taken from FIG. FIG. 10 is a cross-sectional view taken from FIG. 11th
The figure is a plan view of the intermediate shelf. FIG. 12 is a perspective view of the intermediate shelf board. FIG. 13 is an enlarged view of FIG. 12 in the direction of the arrow. FIG. 14 is a plan view of the bottom wall. FIG. 15 is a perspective view of the bottom wall. FIG. 16 is a detailed view of the section shown by the arrow in FIG. 15. FIG. 17 is an exploded view showing the relationship between the front and rear wheel trucks and the end walls. FIG. 18 is a detailed view of the section shown by the arrow in FIG. FIG. 19 is an explanatory diagram of the state of the wheel truck when the pallet is folded. FIG. 20 is an explanatory diagram of the coupling relationship between the wheel truck and the bottom wall. Figure 21 is XI-XI of Figure 20
Arrow sectional view. FIGS. 22a to 22g are explanatory diagrams of the folding procedure. FIGS. 23a to 23d are explanatory diagrams of conventional wheeled pallets. FIGS. 24 and 25 are explanatory diagrams of the state in which conventional pallets are loaded into a van-type vehicle. FIG. 26 is a detailed perspective view of the double hinge of the opening/closing door. Figure 27 is the 26th
The arrow view of the figure. In the diagram; A, B...wheeled pallets, P...
Platform, 10...Front end wall, 11...Rear end wall, 12...Opening/closing side wall, 12a, 12b...Opening/closing door, 13...Bendable wall, 14...Bottom wall, 15
...Intermediate shelf board, 16...Fixed ring, 17...Free wheel, 18a, 18b, 18c...Hinge, 19,2
0... Vertical frame, 21... Upper horizontal frame, 22... Intermediate horizontal frame, 23... Connection member (of the free wheel), 24...
... Net plate, 25 ... Hinge bracket, 26 ... Door vertical frame, 27, 28 ... Door horizontal frame, 29 ... Locking device, 29a ... Lock rod, 30 ... Bearing plate,
31... Handle, 32... Aggregate, 33... Groove handle holder, 34... Lateral vibration prevention plate, 35... Holding plate, 36... Net plate, 37... Vertical frame, 38... Upper horizontal Frame, 39... Middle horizontal frame, 40... Lower horizontal frame, 41... Hinge, 42... Horizontal frame, 43... Vertical frame, 44... Key-shaped member, 45... Horizontal member, 46...
... Vertical member, 47 ... Intermediate reinforcing material, 48 ... Floor plate,
49... Hinge piece, 49a... Hole, 50... Rear wheel truck, 51... Front wheel truck, 52... Connecting member, 53... Vertical mounting piece, 54... Connecting member, 5
5... Vertical mounting piece, 56... Connection pin, 57...
Abutting piece, 58... Connection piece, 58b... Hole, 59
...Hinge piece, 60...Hook, 61...Flannel board.

Claims (1)

[Claims for Utility Model Registration] (1) Narrow front end wall 10 and rear end wall 11, and at least one pair of openings and closings each hinged to a vertical frame 20 on one side of the front end wall 10 and rear end wall 11; Doors 12a, 12
The opening/closing side wall 12 consisting of the opening/closing side wall 12, the locking device 29 of the opening/closing side wall 12, and the side portions are hinged to the other vertical frame 19 of the front end wall 10 and the rear end wall 11, and the middle portion can be bent inward. a bendable wall 13 hinged to the
A front wheel truck 51 is provided with a bottom wall 14 attached to the rear wheel truck so that it can be folded upward, and a pair of left and right wheels 17 located at the lower end of the front end wall 10, and at the lower end of the rear end wall 11. Position left and right 1
A folding device consisting of a rear wheel truck 50 equipped with a pair of wheels, and characterized in that when folded, the front end wall 10 and the rear end wall 11 are close to each other in a parallel state and are folded. Wheeled pallets for transporting cargo. (2) The hinges 18a of the opening/closing doors 12a, 12b are pivoted by pins 25a between a pair of upper and lower hinge brackets 25, 25 fixed to the vertical frame 20 of the end wall, and the side facing the outer surface of the vertical frame 20 is The first hinge piece 25b is an inclined surface, and the first hinge piece 25b is further pivotally connected with a pin 25c, and the opening/closing door 12a,
The second hinge piece 25 fixed to the end face of the side frame 12b
2. A foldable wheeled pallet for transporting cargo according to claim 1, characterized in that it comprises: d. (3) A lock rod 29a whose upper and lower ends are pivotally supported by bearing plates 30, 30 attached to the door horizontal frames 27, 28.
, the handle receiver 3 is installed on the aggregate provided between the upper and lower door vertical frames, and the free end straddles the two door vertical frames 26, 26 on the free end side of the left and right opening/closing doors 12a, 12b.
3. The collapsible wheeled pallet for transporting cargo according to claim 1, further comprising a locking device (29) comprising a handle (31) which can be inserted into and removed from the pallet. (4) The lateral vibration prevention device has one end fixed to the vertical frame 26 of one opening/closing door, a lateral vibration prevention plate 34 formed in a cross-sectional shape so as to straddle the other door vertical frame, and a holding plate fixed to the lock rod 29. 4. The collapsible wheeled pallet for transporting cargo according to claim 1, 2 or 3, characterized in that it is comprised of: 35. (5) A collapsible wheeled pallet for carrying cargo according to claim 1, comprising an intermediate shelf (15) that can be stored in close contact with an end wall.