JP2513655Y2 - Folding carrier - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a foldable carriage that is suitable for carrying and displaying potted flowers, fertilizers, household sundries and the like.

[0002]

2. Description of the Related Art Conventionally, various proposals have been made for this type of foldable carriage (eg, Japanese Utility Model Laid-Open No. 64-42965). In addition, recently, a foldable pallet truck pallet proposed by the applicant (Practical application 2-12
5159). This trolley pallet holds the front edge of the shelf plate between the side pillars in a rotatable manner, and provides two shelf board supports, which allow the shelf board to swing up, back to back. An intermediate column provided with a shelf holder for holding the trailing edge of the shelf is provided in the upper and lower connecting arms whose upper and lower ends are the upper and lower ends of the intermediate column and the front and rear shelf supports, and both ends are pivotally supported by rotary hinges. Are connected to each other by. According to such a pallet truck, when the shelves are swung up during storage and then the intermediate columns are moved inward as the upper and lower connecting arms are swung, the side columns of the two shelf plate supports are moved. There is an advantage that the pallets can be folded in the thickness direction by coming into close contact with each other.

[0003]

However, in the above-mentioned pallet truck, although the thickness can be reduced to about 1/3 of that when assembled when folded and stored, the position of the shelf plate is fixed and the height can be freely adjusted. There was a big problem that it could not be changed and the size of the displayed items was limited. Further, since the pallets are transported one by one, there is a problem that the pallet transportation efficiency is poor in a flower market or the like where a large number of pallets are owned.

Therefore, the present invention has been made in view of the above-mentioned conventional problems, and the purpose thereof is that it can be easily and easily folded and that the height of the shelf plate can be freely changed. Moreover, it is an object of the present invention to provide a foldable transport carriage capable of transporting a plurality of carriages at once.

[0005]

The present invention has been made in order to achieve the above object, and the first invention according to claim 1 has casters at the lower ends thereof to face each other in the left-right and front-rear directions. One side strut, an intermediate strut positioned between the side strut opposite to each other in the front and back, and a connecting member pivotally attached to these members at both ends between the intermediate strut and the front and rear side strut, respectively. A plurality of shelves arranged so that the front end is slidably held in the vertical direction between the left and right side columns, and each of the side columns is continuously extended in the height direction. A guide groove that slidably guides the front end portion and a plurality of locking grooves that one end communicates with the guide groove and that locks the front end portion of the shelf board are formed, and the intermediate support column of the shelf board is formed. A plurality of stoppers for supporting the rear end are provided corresponding to the locking grooves. According to a second aspect of the present invention, in the first aspect of the invention, an upper connecting member is provided between the upper ends of the front and rear side columns facing each other in the left and right directions. Either one of them is detachably attached to the side support. According to a third aspect of the present invention, in the first or second aspect of the present invention, the carriage is provided with a connecting tool that enables the carriages to be connected to each other.

[0006]

In the first invention, the locking groove of the side strut holds the front end of the shelf board, and the guide groove slidably guides the front end of the shelf board to freely change the height of the shelf board. And In the second invention, the upper connecting member detachably mounted between the upper ends of the left and right side columns facilitates the loading and unloading work of the display items on the shelf board by being removed. In the third invention, the connecting tool connects the carriages in series and enables the transportation of a plurality of carriages at one time.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the embodiments shown in the drawings. FIG. 1 is an external perspective view of an assembled state showing an embodiment of a foldable carrier according to the present invention, FIG. 2 is an external perspective view of the folded state of the same dolly, and FIG. 3 is a side view of essential parts. In these figures, the folding transport carriage indicated by reference numeral 1 as a whole has two shelf support bodies 3 having the same structure for holding the front end of the shelf board 2, like the above-mentioned carriage pallet.
4 back-to-back with a pair of left and right intermediate columns 5, 6 sandwiched,
That is, by arranging the shelf plate 2 so that the front end thereof is on the outer side and connecting the two shelf plate supports 3 and 4 and the upper and lower ends of the intermediate columns 5 and 6 by the connecting members 7 and 8, respectively, the thickness direction ( It is configured to be freely foldable in the front-back direction.

Next, the construction and the like of the shelf support 3 will be described in detail. The shelf support 3 includes a pair of left and right side columns 9, 10.
The connecting members 7 and 8 for connecting the upper and lower ends of the side columns 9 and 10 to the upper and lower ends of the intermediate columns 5 and 6, respectively, and a plurality of stages, for example, 5 arranged so as to hold the front ends between the side columns 9 and 10. The stepped shelf plate 2, upper and lower connecting members 11 and 12 that connect the upper and lower ends of the side columns 9 and 10, respectively, and the side columns 9 and
It is composed of casters 13 and the like provided on the lower surface of 10. Therefore, the carriage 1 is provided with a total of four side columns 9 and 10 arranged to face each other in the front-rear direction, a pair of left and right intermediate columns 5 and 6 disposed between the front and rear side columns, and the front-rear side. Upper ends of columns 9, 9, 10 and 10 and intermediate columns 5, 6
A total of four connecting members 7 respectively connecting the upper ends of
Similarly, a total of four connecting members 8 for connecting the lower ends of the front and rear side struts 9 and 9, 10 and 10 and the lower ends of the intermediate struts 5 and 6.
And a pair of upper connecting members 11 connecting the upper ends of the left and right side columns 9 and 10, respectively, and a pair of lower connecting members 12 connecting the lower ends of the left and right side columns 9 and 10, respectively. Forming a gantry with 5 shelves inside
Are provided in front and rear two rows.

The side struts 9 and 10 of the shelf support 3 are made of aluminum alloy hollow extrusion members having a rectangular cross section, and extend on the inner surfaces facing each other over substantially the entire length in the height direction. A straight guide groove 15 which guides the front end of the shelf board 2 and a plurality of locking grooves 16 whose one end communicates with the guide groove 15 and holds the front end of the shelf board 2 are formed.

As shown in FIG. 3, the engaging grooves 16 are formed in the height direction of the side columns 9 and 10 at substantially the same pitch as the depth dimension of the shelf board 2, and are the same number as the number of shelf boards. Locking groove 16A
And an arbitrary number of second locking grooves 16B provided at appropriate intervals between the first locking grooves 16A. The first locking groove 16A is bent in a crank shape so that the front end thereof communicates with the guide groove 15 and extends horizontally rearward to form a first lateral groove portion 18a and the upper end of the first lateral groove portion 1A.
The vertical groove portion 18b communicates with the rear end of the vertical groove portion 8a and the second lateral groove portion 18c communicates with the lower end of the vertical groove portion 18b at the front end. The rear end of the second lateral groove portion 18c is rearwardly spaced from the guide groove 15 by a distance equal to or greater than the thickness of the shelf board 2. On the other hand, the second locking groove 16B is formed in an inverted L shape, so that the front end communicates with the guide groove 15 and the lateral groove portion 19a horizontally extending rearward and the upper end has the lateral groove portion 1a.
The vertical groove portion 19b communicates with the rear end of the 9a and extends downward. The vertical groove portion 19b is the second horizontal groove portion 18c.
It is located slightly forward of the inner edge. Although the locking groove 16 (16A, 16B) is provided on the rear side of the guide groove 15 in this embodiment, it is needless to say that the locking groove 16 (16A, 16B) may be provided on the front side.

Similar to the side struts 9 and 10, the shelf plate 2 is made of an aluminum alloy hollow extrusion die member having a rectangular cross section, and a plurality of shelf members 20 arranged side by side.
(FIG. 1), both ends of the shelf 20 and the lower surface of the intermediate portion in the longitudinal direction are connected by a U-shaped form member 21 (see FIG. 4). As shown in FIG. 5, the lowermost shelf plate 2A of the five shelf plates 2 is rotatably pivoted in the up-down direction by a pair of left and right hinges 23 provided on the lower connecting member 12 at both ends of the front end surface. The lower surface of both side edge portions on the rear end side is held by a shelf receiving member 24 provided on the rear end portion of the connecting member 8 so as to project inward. As shown in FIG. 4, the shelf plates 2B to 2E from the second stage to the uppermost stage have a pair of guide pins 26 projecting from the front end portions of both side surfaces.
6 is moved up and down along the guide groove 15 of the side columns 9 and 10 to be inserted into and engaged with the locking groove 16 having an appropriate height so that the height can be adjusted. Further, these shelf boards 2B to 2E are rotatable in the vertical direction by the engagement of the guide pin 26 and the guide groove 15 or the engaging groove 16, and the lower surface of both side edge portions on the rear end side is in the engaging groove 16. Correspondingly, it is held horizontally by a stopper 28 attached to each of the intermediate columns 5 and 6. As shown in FIG. 6, the stopper 28 has a width substantially equal to or less than the width of the intermediate support column 5 (6), and the base is vertically moved by a horizontal shaft 30 of a mounting bracket 29 provided on the front surface of the intermediate support column 5. Is rotatably pivotally supported, and a locking portion 31 that restricts the rearward movement of the shelf 2B is integrally provided on the upper surface of the tip portion so as to project. A locking piece 32 that horizontally locks the stopper 28 when the shelf plate 2B is held is bent and formed below the rear edge of the mounting bracket 29 so as to be orthogonal to the surface of the mounting bracket 29. The stopper 28 is housed downward along the front surface of the intermediate support column 5 as shown by the chain double-dashed line so as not to form a protrusion when not in use.

Locking pins 35 (FIGS. 5 and 6) that can be pulled out from the outside are respectively housed and arranged at the rear end sides of both sides of each of the shelves 2A to 2E. The locking pin 35 stably locks the shelves 2A to 2E in the storage position when the transporting cart 1 is folded and stored, and is normally stored inside the shelf and is provided on the side surface of the shelf during use. It is projected to the outside from the insertion hole 36. In this case, the locking pin 3 of the lowermost shelf 2A
5 is inserted and locked in the recess of the Ω-shaped stopper 40 (FIG. 2) attached to the rear surface of the lower ends of the side columns 9 and 10 to lock the second and fourth shelf boards 2B and 2D. The pin 35 is inserted and locked in a locking hole 42 (FIG. 2) formed in the inner side surfaces of the side columns 9 and 10, and the locking pins 35 of the third and fifth shelf plates 2C and 2E are the same as those described above. It is inserted into the guide groove 15 and locked. The locking holes 42 are respectively formed at a position substantially equal to the height when the shelf plate 2B is flipped up and stored, and at a position approximately twice this height.

When folding and storing the shelves 2A to 2E,
First, the lowermost shelf 2A is rotated upward with the hinge 23 as a fulcrum until it becomes substantially vertical, and then the locking pin 35 is projected and locked to the stopper 40. Next, the shelf board 2 with two steps
Fold B. When the shelf board 2B is folded, the shelf board 2B is slightly lifted to move the guide pin 26 from the locking groove 16 to the guide groove 15, and then the guide pin 26 is moved downward along the guide groove 15 at the same time. The shelf plate 2B is gradually rotated upward to be substantially vertical, and the lower front end is brought into contact with the upper surface of the lower connecting member 12. Then, the shelf board 2B is moved rearward so that the guide pin 26 is inserted into and engaged with the rear end of the lowermost first locking groove 16A (FIG. 3). And
By projecting the locking pin 35 and inserting and locking it in the lower locking hole 42 (FIG. 2), the second shelf plate 2B is inserted into the first shelf plate 2.
Store vertically along the surface of A. Next, when folding the shelf plate 2C having three steps, the shelf plate 2C is slightly lifted to move the guide pin 26 from the locking groove 16 to the guide groove 15 as in the case of the second step shelf plate 2B. Rear guide pin 2
6 is moved downward along the guide groove 15, and at the same time, the shelf plate 2C is gradually rotated upward to be substantially vertical, and the lowered front end is brought into contact with the upper surface of the lower connecting member 12. And
By projecting the locking pin 35 and inserting and locking it in the guide groove 15, the third shelf 2C is vertically housed along the surface of the second shelf 2B. Next, when folding the shelf plate 2D of the fourth step, the shelf plate 2D is slightly lifted to move the guide pin 26 from the engaging groove 16 to the guide groove 15 as in the case of the shelf plate 2B of the second step. After that, the guide pin 26 is moved downward along the guide groove 15, and at the same time, the shelf board 2C is gradually rotated upward to be substantially vertical, and the lowered front end is brought into contact with the third shelf board 2C. Let Then, the shelf board 2C is moved backward to move the guide pin 26 to the second first locking groove 16 from the bottom.
By inserting and engaging the rear end of A, and further projecting the locking pin 35 and inserting and locking it in the upper locking hole 42, the shelf plate 2C of the third step is vertically arranged on the shelf plate 2B of the second step. To store. The remaining five-level shelf 2E is folded and stored in the third shelf 2 above.
Similar to C, the shelf plate 2E is lifted to move the guide pin 26 from the locking groove 16 to the guide groove 15, and then the guide pin 26 is moved downward along the guide groove 15 and at the same time the shelf plate 2E is moved upward. Then, it is gradually rotated to be substantially vertical, and the lower front end is placed on the third shelf 2C. Then, the locking pin 35 is projected and inserted and locked in the guide groove 15, so that the fifth shelf plate 2E is placed on the third shelf plate 2C and along the surface of the fourth shelf plate 2D. Store vertically. That is, the five shelf boards 2A to 2E are the shelf boards 2A to 2C in the first to third steps.
Is stored in an inverted state at the bottom of the shelf support 3, that is, folded vertically with the front end facing down, and the fourth and fifth shelf boards 2D and 2E are in the second and third steps. It is also stored on the shelf boards 2B and 2C in an inverted state.

Each end of the connecting members 7 and 8 for connecting the upper and lower ends of the side columns 9 and 10 and the upper and lower ends of the intermediate columns 5 and 6 has a rotary shaft 4 perpendicular to a connecting fitting 45 provided on these columns.
6 (rotatably connected through FIGS. 1 and 39,
When the transporting vehicle 1 is folded and stored, it is configured to be rotated inward by about 90 ° with the side columns 9 and 10 side ends as rotation fulcrums. Therefore, the intermediate columns 5 and 6 move inward of the side columns 9 and 10 in the folded storage state of the transport carriage 1 shown in FIG.

The upper connecting member 11 provided between the upper ends of the side columns 9 and 10 is detachable, and by removing the upper connecting member 11 facilitates the display of products on the uppermost shelf plate 2E.

An intermediate connecting member 47 (FIGS. 2 and 5) is provided between the lower ends of the intermediate columns 5 and 6 to connect the columns. The middle connecting member 47 includes members 47A and 47B formed in two parts.
Opposite ends of A and 47B are rotatably connected to each other in the vertical direction by hinges 48, and opposite ends thereof are horizontal connecting shafts 49 to the connecting fittings 45 attached to the lower ends of the intermediate columns 5 and 6. Are connected via. Therefore, if the members 47A and 47B are lifted and bent in an inverted V shape when the transport carriage 1 is folded, the connecting member 8 rotates inward and the intermediate columns 5 and 6 can move inward.

All of the shelf support members 4 are the above-mentioned shelf support members 3 except that the upper connecting members 11 for connecting the upper ends of the side columns 9 and 10 are non-detachably attached. Since the configuration is the same as that of, the description thereof will be omitted.

Further, a male connecting tool 51 and a female connecting tool 52 for connecting the carriages to each other are provided at the lower portions of both side surfaces of the carrier truck 1 having the above-mentioned structure. Male connector 51
As shown in FIGS. 1 and 7 to 9, the pair of connecting bars 53, 54 provided with a slight offset in the height direction, and the bracket member 55 attached to the base ends of the connecting bars 53, 54.
Is provided with a horizontal shaft 56 that rotatably supports in the vertical direction, and a vertical shaft 58 that rotatably supports another bracket member 57 provided with the horizontal shaft 56 in the horizontal direction. By pivotally supporting the end of the connecting member 8 on the side strut 9 side,
It also serves as the rotating shaft 46 described above. On the other hand, the connecting bar 53
A connecting pin 59 is integrally hung at the tip of the connecting pin 59, and the connecting pin 59 is vertically inserted into a fitting hole 60 provided at the tip of the other connecting bar 54 when the carriages are connected to each other. The lower end portion which is fitted and protrudes downward is connected to the female connector 52 of another dolly. Although the male connector 51 projects to the side of the trolley when in use, when not in use, the fitting connection between the connecting pin 59 and the fitting hole 60 is released to connect the connecting bars 53 and 54 to the horizontal shaft 56. When it is rotated upward as a center of rotation until it becomes substantially vertical, it is housed along the side column 9, so it does not get in the way. It should be noted that the side columns 9 facing each other in the front-rear direction are provided with appropriate locking members (not shown) such as leaf springs for elastically sandwiching the connecting bars 53, 54 in the storage position.

The female connector 52 is provided with a pair of rotating bars 64, 65 as shown in FIGS. 7, 9 and 10. These rotating bars 64, 65 have substantially the same length as the connecting member 8, and the base end portions thereof in the left-right direction on a connecting fitting 45 attached to the lower end of the intermediate support column 6 via a vertical shaft 66. It is pivotally supported. The vertical shaft 66 also serves as the rotary shaft 46 that connects the connecting member 8 to the intermediate column 6. The pin receiving member 6 is provided between the tips of the rotating bars 64, 65.
The bases of 7a and 67b are vertically rotatably and detachably connected by pins 68 and 69, respectively, and the pin receiving members 67a and 67b and the tip ends of the rotating bars 64 and 65 are connected to each other. Fitting holes 70 into which the lower ends of the pins 59 are commonly fitted are provided respectively. When the female connector 52 is not used, the rotary levers 64 and 65 are respectively rotated outward after the male connector 51 is detached, and are housed on the connector 8. At the time of storage, knock bars 75 and 76 attached to the rotating levers 64 and 65 are inserted and fixed in holes provided at corresponding positions of the connecting member 8. The connecting tool of the carriage 1 is not limited to the one having the above-described structure, and various structures can be adopted, and for example, a chain may be used.

[0020]

As described above, according to the folding carriage according to the present invention, the assembling and folding and storing operations are simple and easy, and the height of the shelf board can be freely adjusted. There are no restrictions on the size of products such as flower pots to be placed, and there are two on the front side and two on the rear side.
At least one of the two upper connecting members that connect the upper ends of the two pairs of left and right side columns that are opposed to each other is detachable, so that the product can be placed on the uppermost shelf. Excellent workability when loading or unloading,
Moreover, since it is provided with the connecting tool, a plurality of carriages can be conveyed and moved at one time, and the practical effect thereof is large, such as improving the conveyance efficiency of the carriage itself.

[Brief description of drawings]

FIG. 1 is an external perspective view of an assembled state showing an embodiment of a folding carrier according to the present invention.

FIG. 2 is an external perspective view of the vehicle in a folded state.

FIG. 3 is a side view of a main part.

FIG. 4 is a sectional view of a main part of a shelf board.

FIG. 5 is a plan view of a main part of the lowermost shelf plate.

FIG. 6 is a front view of a stopper that holds the rear end of the shelf plate.

FIG. 7 is a partially cutaway front view of the connector.

FIG. 8 is a front view of a main part of the male connector.

FIG. 9 is a plan view of a female connector.

FIG. 10 is a schematic perspective view of a female connector.

[Explanation of symbols]

 1 Transport Carriage 2 Shelf Boards 3, 4 Shelf Board Supports 5, 6 Intermediate Struts 7, 8 Connecting Member 9, 10 Side Struts 11 Upper Connecting Member 12 Lower Connecting Member 13 Caster 15 Guide Groove 16 Locking Groove 28 Stopper 46 Rotation Shaft 51 Male connector 52 Female connector

Claims (3)

(57) [Scope of utility model registration request] 1. Four side struts each having a caster at a lower end and facing left and right, front and rear, intermediate struts respectively located between the side struts facing front and back, and both ends between the intermediate struts and the front and rear side struts respectively. And a connecting member pivotally attached to these members, and a plurality of shelves arranged so that the front end is slidably held in the vertical direction between the left and right side columns. A guide groove that continuously extends in the height direction and guides the front end portion of the shelf plate slidably to each side column, and one end communicates with the guide groove to lock the front end portion of the shelf plate. A foldable transport carriage, wherein a plurality of locking grooves are formed, and a plurality of stoppers for supporting the rear end of the shelf plate are provided on the intermediate column corresponding to the locking grooves. 2. The folding transport vehicle according to claim 1, wherein an upper connecting member is provided between upper ends of front and rear side columns facing each other in the left and right, and one of these upper connecting members is provided. One is a foldable carrier truck, which is detachably attached to a side support. 3. The folding transport vehicle according to claim 1 or 2, wherein the transport vehicle is provided with a connecting tool for connecting the trucks to each other.