Transport cart

Abstract

To provide a transportation carriage that enables safety in transportation work to be improved.SOLUTION: The transportation carriage is equipped with: a loading platform formed in a rectangle-shape in a planar view for loading baggage thereon; a support rod member 20 erected with respect to the loading platform; a plurality of casters 17 arranged below the loading platform and having wheel portions 17A freely rotatable around axles; and corner guard members 30 which are arranged respectively at corner portions of outer contoured portions C formed by the loading platform and the support rod member 20 in a planar view, the corner guard members 30 protruding outward from the outer contoured portions C.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a transport cart having a loading platform for loading luggage and a plurality of casters arranged under the loading platform. [Background technology]

[0002] As is well known, various transport carts are used to transport loads at construction sites and the like. Such a transport cart includes a load receiving platform, a support member erected from the load receiving platform, and a plurality of casters arranged below the load receiving platform. In addition, some of these transport carts are capable of carrying heavier loads than conventional models by arranging three pairs of casters (six in total) at symmetrical positions on the underside of the front, center, and rear of the loading platform (see, for example, Patent Document 1).

[0003] Furthermore, there are various types of support members that are erected from the cargo receiving platform, and in order to improve safety when transporting work using a transport cart, for example, a protective member (for example, a ring-shaped member extending outward from the support member) is attached to the support member, preventing the hands of the transport worker from being pinched between surrounding walls or pillars or from being bruised by a collision, etc., thereby protecting the hands of the transport worker, thereby improving safety during transport work (see, for example, Patent Document 2). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6244577 [Patent Document 2] Japanese Patent Application Publication No. 2019-147561 Summary of the Invention [Problem to be solved by the invention]

[0005] However, when the transport cart disclosed in Patent Document 2 is transporting heavy loads, if the carts collide with each other and the support members (protective members) collide with each other, there is a possibility that the support members will bend, and there is a risk that the transport cart will be damaged.

[0006] Furthermore, if a worker is so focused on the carrying operation that their fingers or other parts of their body come into contact with the outer surface of the protective member, there is a risk that their fingers may get caught when carrying the product through narrow spaces between pillars, such as entrances and exits. On the other hand, when a transport worker changes hands during transport work, they must avoid the protective member and grasp the support member, which inevitably reduces workability and convenience during transport work.

[0007] Furthermore, in transport carts where the support members are insertable, it is possible to store the removed support members and the transport cart body separately, but in transport carts where the support members tilt relative to the loading platform, it is difficult to store the support members.

[0008] The present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide a transport cart that can improve safety during transport work. [Means for solving the problem]

[0009] In order to solve the above problems, the present invention proposes the following means. The invention described in claim 1 is a transport cart characterized by comprising a cargo receiving platform formed in a rectangular shape in a plan view for loading cargo, a support member erected relative to the cargo receiving platform, a plurality of casters arranged at the bottom of the cargo receiving platform and having wheel portions that are freely rotatable around an axle, and corner guard members arranged at the corners of an outer contour formed by the cargo receiving platform and the support member when viewed in a plan view, and protruding outward from the outer contour. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a perspective view illustrating a state in which support members are erected, illustrating the schematic configuration of a transportation cart according to a first embodiment of the present invention. FIG. [Figure 2] FIG. 2 is a perspective view illustrating a state in which a support member is tilted, illustrating the schematic configuration of the transportation cart according to the first embodiment. [Figure 3] 1 is a side view illustrating a schematic configuration of a transportation cart according to a first embodiment. FIG. [Figure 4] 1 is a front view illustrating a schematic configuration of a transportation cart according to a first embodiment. FIG. [Figure 5] FIG. 1 is a plan view illustrating a schematic configuration of a transportation cart according to a first embodiment. [Figure 6] FIG. 3 is an enlarged perspective view illustrating details of a corner guide member of the transportation cart according to the first embodiment. [Figure 7] FIG. 4 is a plan view illustrating details of a corner guide member of the transportation cart according to the first embodiment. [Figure 8] FIG. 4 is a front view illustrating details of a corner guide member of the transportation cart according to the first embodiment. [Figure 9] FIG. 4 is a side view illustrating details of a corner guide member of the transportation cart according to the first embodiment. [Figure 10] FIG. 2 is a conceptual diagram illustrating the general configuration of a swing mechanism of a fixed-wheel caster of the transport cart according to the first embodiment, as viewed from the front. [Figure 11] FIG. 2 is a conceptual diagram illustrating the schematic configuration of a swing mechanism of a fixed-wheel caster of the transport cart according to the first embodiment, as viewed from the side. [Figure 12] FIG. 2 is a perspective view illustrating an outline of a state in which transport carriages according to the first embodiment are stacked one on top of another. [Figure 13] FIG. 10 is a perspective view illustrating a state in which support members are erected, illustrating the schematic configuration of a transport cart according to a second embodiment of the present invention. [Figure 14] FIG. 10 is a front view illustrating the schematic configuration of a transport cart according to a third embodiment of the present invention. [Figure 15] FIG. 10 is a plan view illustrating a schematic configuration of a transport cart according to a fourth embodiment of the present invention. [Figure 16]FIG. 10 is a plan view illustrating a schematic configuration of a transport cart according to a fifth embodiment of the present invention. [Figure 17] FIG. 10 is a plan view illustrating a schematic configuration of a transport cart according to a sixth embodiment of the present invention. [Figure 18] FIG. 13 is a plan view illustrating a schematic configuration of a transport cart according to a seventh embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0011] First Embodiment A first embodiment of the present invention will be described below with reference to FIGS. Figures 1 to 5 are diagrams illustrating the schematic configuration of a transport cart according to a first embodiment, with Figure 1 being a perspective view showing a state in which the support members are erected, Figure 2 being a perspective view showing a state in which the support members are tilted, Figure 3 being a side view, Figure 4 being a front view, and Figure 5 being a plan view. Figures 6 to 9 are diagrams illustrating the details of the corner guard members.

[0012] In the figure, reference numeral 100 denotes the transport cart, reference numeral 10 denotes the load receiving platform, reference numeral 12 denotes the support post holder, reference numeral 17 denotes the casters, reference numeral 20 denotes the support post member, and reference numeral 30 denotes the corner guard member. Reference numeral 10A denotes the load receiving surface (upper surface), reference numeral 10B denotes the underside of the load receiving platform, and reference numerals 10U and 10V denote the caster storage section. Reference numeral 17C denotes the liftable wheel support section. Reference numeral C denotes the outer contour section. Note that the outer contour C is the contour defined by the load receiving platform and the support post holder when viewed in plan, but is shown spaced apart from these for ease of identification.

[0013] As shown in Figures 1 to 7, the transport cart 100 includes, for example, a load receiving platform 10, a support pole holding portion 12, an insertion pin (locking member) 15, a caster 17, a support pole receiving bracket 18, a support pole member 20, and a corner guard member 30.

[0014] Furthermore, as shown in Figures 1 to 5, the transport cart 100 is configured such that, for example, by extracting the support member 20 from the support holding portion 12 and tilting it, the support member 20 is supported at its free end F by the support receiving bracket 18 on the side of the cargo receiving platform 10, and the support member 20 is raised and inserted into the support holding portion 12 and held by the support holding portion 12, so that the support member 20 is erected relative to the cargo receiving platform 10. The erected support members 20 are used as handrails, and the luggage loaded on the luggage receiving platform 10 can be transported by the casters 17.

[0015] The loading platform 10 is formed in a rectangular shape in plan view, for example, with a thickness (vertical dimension) of 60 mm, a front-rear dimension of 1000 mm, and a width dimension of 600 mm. The receiving platform 10 has a receiving surface (upper surface of the receiving platform) 10A on which luggage is loaded, and a lower surface 10B.

[0016] Specifically, for example, the surrounding frame member is formed from aluminum alloy square timber (square pipe) (e.g., 60 mm x 60 mm), an aluminum alloy plate forming the cargo receiving surface (upper surface) 10A is welded to the top of the frame member, and an aluminum alloy plate forming the lower surface 10B of the cargo receiving platform 10 is welded to the bottom of the frame member. Further, the lower surface 10B of the load-receiving platform 10 is, for example, a surface that is positioned lower than the frame member.

[0017] In this embodiment, as shown in Figures 1 to 3, the casters 17 are arranged in three pairs (six in total) at symmetrical positions on the underside 10B of the front side F, center, and rear side R along the fore-and-aft direction of the loading platform 10. The casters 17 include, for example, free-wheel casters 171 and fixed-wheel casters 172 .

[0018] The arrangement of the free-wheel casters 171 and fixed-wheel casters 172 relative to the cargo receiving platform 10 can be set as desired, but in this embodiment, the free-wheel casters 171 (17) are arranged on the front side F and rear side R of the cargo receiving platform 10, and the fixed-wheel casters 172 (17) are arranged in the center of the cargo receiving platform 10 in the fore-and-aft direction.

[0019] The free wheel caster 171 (17) includes, for example, a wheel portion 17A, a wheel support portion 17B, and an axle 17D. The wheel support portion 17B rotatably supports the wheel portion 17A, and is configured to allow the wheel portion 17A to rotate around a rotation axis (not shown) formed in the vertical direction. It should be noted that the free wheel caster 171 may be a known one.

[0020] The fixed-wheel caster 172 includes, for example, a wheel portion 17A, a liftable wheel support portion 17C, and an axle 17D. The liftable wheel support section 17C rotatably supports the wheel section 17A and holds the wheel section 17A so that it can move only in a certain direction (the front-rear direction of the transport cart 100).

[0021] Whether or not the fixed-wheel caster 172 is provided with the liftable wheel holder 17C can be set at will, but for example, when the fixed-wheel caster 172 (17) is raised, the free-wheel caster 171 can easily move the transport cart 100 laterally, which is advantageous. In this embodiment, the liftable wheel support portion 17C can be moved by a swing mechanism (caster lifting mechanism) described later.

[0022] Furthermore, as shown in Figures 2, 3 and 5, when the support member 20 is tilted and laid down, the transport cart 100 is configured so that the upper side surface 20A of the support member 20 is positioned at a lower position than the load receiving surface (upper surface of the load receiving platform) 10A, and the lower side surface 20B of the support member 20 is positioned at a higher position than the lower surface 10B of the load receiving platform.

[0023] As shown in FIGS. 1, 2, and 5, the transporting cart 100 has, for example, a receiving platform 10 formed with a storage section 10U and a caster storage section 10V. The caster storage section 10U is formed, for example, on the load receiving surface (upper surface) 10A on the front side F and rear side R of the load receiving platform 10. Specifically, a hole that is formed in an aluminum alloy plate that forms the load receiving surface (upper surface) 10A and that opens in a rectangular shape in a plan view is configured as a recess (space) that is formed to a depth (dimension) that reaches the aluminum alloy plate that forms the lower surface 10B of the load receiving platform 10. The length and width in the front-rear direction of the caster receiving portion 10U are such that the caster 171 (17) can be received even if it is tilted relative to the front-rear direction.

[0024] The caster storage section 10V is formed, for example, on the load receiving surface (upper surface) 10A in the center in the front-to-rear direction of the load receiving platform 10. In this embodiment, as shown in Fig. 5, for example, there is provided a recess that opens into the load receiving surface (upper surface) 10A and forms the caster storage section 10U, and a caster guide member 10G arranged in this recess. The caster guide member 10G is configured by a recess formed so as to be able to house, for example, the fixed wheel caster 172 (17). The configuration of the caster receiving sections 10U and 10V is not limited to the above, and can be set arbitrarily.

[0025] The support pillar receiving bracket 18 is formed, for example, by bending a rectangular metal plate in the thickness direction, and is disposed so as to protrude outward in the width direction of the receiving platform 10. The support bracket 18 supports from below the free end 20F of the tilted support member 20. The support bracket 18 sets the height positions of the upper side surface 20A and the lower side surface 20B of the tilted support member 20.

[0026] The support pole holding portion 12 is formed, for example, from a square piece of aluminum alloy material (square pipe) having an insertion hole 12H on the inside. The insertion holes 12H are attached to the side surfaces of the front side F and rear side R of the load-receiving platform 10 so that the insertion holes 12H face in the vertical direction. In addition, a recess 12C is formed in the support pillar holding portion 12 facing inward (towards the center) in the fore-and-aft direction of the loading platform 10, and the lower side surface 20B of the tilted support pillar member 20 is configured to abut against the recess 12C.

[0027] In addition, in the support column holding portion 12, for example, a support column member pivot bolt (support column member, not shown) is arranged across the insertion hole 12H in the width direction of the transport cart 100 (load receiving platform 10). In addition, at the bottom of the square material (square pipe) that constitutes the support column holding portion 12, a support column member pivot bolt 13 is arranged on the opposing wall portion in the width direction of the transport cart 100 (load receiving platform 10).

[0028] As shown in FIGS. 1 to 5, the support member 20 is made of, for example, a square piece of aluminum alloy material (square pipe). Furthermore, the support member 20 is configured so that, for example, two square pieces (square pipes) arranged in the longitudinal direction are relatively movable in the longitudinal direction along an axial member (not shown) arranged inside. As a result, the support member 20 is extendable along the longitudinal direction, and can change its height by extending and contracting in the vertical direction while erected.

[0029] In addition, as shown in Figures 2 and 3, the square timber (square pipe) that constitutes the support member 20 has a long hole 22 formed along the longitudinal direction of the support member 20 in the wall portion that faces the side (width direction) of the transport cart 100 (load receiving platform 10).

[0030] As shown in Figures 3 and 5, the long hole 22 of the support member 20 has a support bolt (support member) 13 inserted therethrough so as to straddle the opposing wall portions, and the long hole 22 is guided by the support bolt 13 between the lower end and the upper end, allowing the support member 20 to move vertically along the insertion hole 12H.

[0031] When the lower end of the long hole 22 abuts against the support member locking pin 13, the support member 20 is pivotally supported by the support member locking pin 13 and can tilt (rotate) with the support member pivot bolt 13 as the fulcrum. Furthermore, when the support member locking pin 13 abuts against the upper end of the elongated hole 22 , the support member 20 can be inserted into the insertion hole 12H and attached to the support member holding portion 12 .

[0032] Furthermore, when the support member 20 is attached to the support holder 12 and set upright on the loading platform 10, the lower end of the elongated hole 22 and the support locking hole 14 overlap.

[0033] Furthermore, when an insert pin (not shown) is inserted while the lower end of the long hole 22 and the support locking hole 14 are overlapping, the support member 20 is locked with the support holding portion 12, preventing the support member 20 from slipping out upward.

[0034] The corner guard members 30 are arranged at the four corners of the outer contour portion C, as shown in FIGS. In this embodiment, the outer contour portion C is formed by the outer contours of the cargo receiving platform 10 and the support pole holding portion 12. In other words, it is formed by the rectangle formed by the cargo receiving platform 10 and the outer contours of four approximately square timbers (square pipes) that form the support pole holding portion 12 attached to the side of the cargo receiving platform 10 on the front side R and the rear side R.

[0035] The corner guard members 30 are formed to protrude from the end faces of the front side F and rear side R of the cargo receiving platform 10. The corner guard members 30 protrude laterally beyond the side faces of the cargo receiving platform 10 and the support pillar holding portion 12, and extend inward in the width direction of the cargo receiving platform 10. The amount of protrusion from the end faces of the front side F and rear side R of the loading platform 10 and from the side surfaces of the loading platform 10 can be set arbitrarily, but it is preferable that each be, for example, 30 mm or more. In this embodiment, the upper surface of the corner guard member 30 is formed flush with the load receiving surface 10A of the load receiving platform 10, for example.

[0036] Next, the corner guard member 30 will be described in detail with reference to FIGS. Figures 6 to 9 are perspective views for explaining the details of the corner guide member, with Figure 6 being a perspective view, Figure 7 being a plan view, Figure 8 being a view seen from the front, and Figure 9 being a view seen from the side. The frames enclosed by two-dot chain lines indicate partially enlarged views.

[0037] The corner guard member 30 can be made of any material, but is preferably made of a flexible and elastic resin material. In this embodiment, the corner guard member 30 is made of, for example, a vinyl chloride elastomer.

[0038] As shown in Figure 6, the corner guard member 30 has a bottom wall portion 31 facing the side where the outer contour portion C defined by the outer contours of the cargo receiving platform 10 and the pillar holding portion 12 is located, in other words, a rising wall portion 32, a recess 35 surrounded by the rising wall portion 32 and recessed from the outside to the inside, and an engagement portion 38. In addition, when viewed in a plane, the corner guard member 30 is formed in an approximately L-shape with the corner portion located on the outside (opposite the right angle at the L-shaped bend) being R-shaped (1 / 4 arc).

[0039] As shown in FIGS. 6 and 7, the bottom wall portion 31 is positioned on the side of the loading platform 10 and the support column holder 12. In addition, when viewed in a plane, the bottom wall portion 31 has a cross section that is bent and folded in an approximately L shape along the outer surface of the square pipe that constitutes the pillar holding portion 12, and this cross section is formed in the shape of a bent flat plate that extends in the vertical direction.

[0040] 6, the rising wall portion 32 includes horizontal rising wall portions 33 and vertical rising wall portions 34. Specifically, the rising wall portion 32 includes three horizontal rising wall portions 33 and six vertical rising wall portions 34.

[0041] As shown in Figures 6 and 7, the lateral rising wall portion 33 is connected to the bottom wall portion 31 in the lateral direction (horizontal direction), rises outward from the bottom wall portion 31, and is formed in a shape that is approximately the same as an L-shape when the corner guard member 30 is viewed in a plane. In this embodiment, the lateral rising wall portions 33 are formed, for example, at the upper end, the lower end, and the center (or near the center) in the height direction of the bottom wall portion 31.

[0042] The vertically rising wall portion 34 is connected to the bottom wall portion 31 in the vertical direction (up and down direction), and intersects with the horizontally rising wall portion 33 at the center (or near the center) of the bottom wall portion 31 in the height direction. The vertically rising wall portion 34 is formed to rise outward from the bottom wall portion 31. In this embodiment, as shown in Figures 6, 8, and 9, the vertically raised wall portions 34 are formed, for example, in two rows on the side surfaces of the bottom wall portion 31 of the transport cart 100, three rows on the front and rear surfaces, and one row on the corners. Ten recesses 35 are formed in the area surrounded by the rising wall portion 31, specifically, in the area surrounded by the horizontal rising wall portion 33 and the vertical rising wall portion 34.

[0043] The engagement portion 38 is formed on the rear surface of the bottom wall portion 31 (the surface on the support-post holding portion 12 side). In this embodiment, the engaging portion 38 includes, for example, a first engaging portion 38A and a second engaging portion 38B.

[0044] The first engagement portions 38A are formed on the surfaces corresponding to the front side F and rear side R of the transport cart 100, for example. In this embodiment, the first engagement portion 38A is formed in a generally L-shape in plan view and extends in the vertical direction. The first engaging portions 38A are inserted in the vertical direction into L-shaped grooves (engaged portions) 12T located on the front side F and rear side R of the pole holding portion 12.

[0045] The second engagement portion 38B is formed on a surface that corresponds to the side surface of the transport cart 100, for example. In this embodiment, the second engagement portion 38B is formed in a generally L-shape in plan view and extends in the vertical direction. The second engaging portion 38B is inserted into an L-shaped groove (engaged portion) 12S located on the side surface of the pole holding portion 12 in the vertical direction.

[0046] Then, the first engaging portion 38A and the second engaging portion 38B are inserted into the L-shaped grooves (engaged portions) 12T, 12S formed in the support post holding portion 12, and a bolt (not shown) is attached through the mounting hole 39, and the support post member shaft support bolt 13 is attached, thereby attaching the corner guard member 30 to the support post holding portion 12.

[0047] Next, an example of a swing mechanism will be described with reference to FIGS. Fig. 10 is a conceptual diagram seen from the front explaining the schematic configuration of the swing mechanism constituting the liftable wheel support unit of the fixed-wheel caster of the transport cart according to the first embodiment, and Fig. 11 is a side view. In Fig. 10, the solid line indicates the state in which the wheel unit is raised, and the two-dot chain line indicates the state in which the wheel unit is lowered.

[0048] In Figures 10 and 11, reference numeral 17C denotes the liftable wheel support portion of the fixed wheel caster, reference numeral 110 denotes the toggle mechanism, reference numeral 111 denotes the mounting bracket, reference numeral 112 denotes the first link member, reference numeral 113 denotes the second link member, reference numeral 114 denotes the universal joint portion, and reference numeral 115 denotes the arm member. Also, reference numeral 121 denotes a first rotation shaft, reference numeral 122 denotes a second rotation shaft, reference numeral 123 denotes a third rotation shaft, reference numeral 124 denotes a fourth rotation shaft, and reference numeral 125 denotes an arm rotation shaft. Reference numeral 130 denotes a return spring.

[0049] In this embodiment, the liftable wheel support section 17C is configured by a swing mechanism (caster lifting mechanism). It is possible to arbitrarily set whether or not the liftable wheel support section 17C is configured with a swing mechanism, but it is preferable in that it can be lifted and lowered directly from the side of the transport cart 100, for example.

[0050] As shown in Figures 10 and 11, the liftable wheel support unit 17C includes, for example, a mounting bracket 111, a toggle mechanism 110, a universal joint unit 114, a fourth pivot shaft 124, an arm member 115, an arm pivot shaft 125, and a restoring spring 130.

[0051] As shown in Figure 11, the mounting bracket 111 has, for example, a first bracket connecting portion 111A (111) connected to the first link member 112, a second bracket connecting portion 111B (111) connected to the arm member 115, and a loading platform fixing portion 111C (111) fixed to the underside 10B of the loading platform 10. The liftable wheel support portion 17C is attached to the loading platform 10 via a mounting bracket 111.

[0052] The arm member 115 is made up of a bracket, supports the wheel portion 17A via an axle 17D on one end side, and has an arm rotation shaft 125 arranged parallel to the axle 17D on the other end side. The arm member 115 is connected to a stay 111 E of the mounting bracket 111 by an arm rotation shaft 125 and is rotatable around the arm rotation shaft 125 .

[0053] As shown in FIGS. 10 and 11, the toggle mechanism 110 includes, for example, a first link member 112, a third link member 113, a first rotating shaft 121, a second rotating shaft 122, and a third rotating shaft 123. The first rotating shaft 121, the second rotating shaft 122, and the third rotating shaft 123 are arranged parallel to one another and along a direction perpendicular to the axle 17D.

[0054] The first link member 112 and the second link member 113 are formed, for example, in a U-shape (channel shape). The second link member 113 is disposed inside the first link member 112. The first link member 112 and the third link member 113 are connected via a second rotation shaft 122 . The first link member 112 and the third link member 113 are rotatable relative to each other around a second rotation shaft 122 .

[0055] The first link member 112 has an upper portion rotatably connected to the mounting bracket 111 via a first rotation shaft 121 . The second link member 113 has a lower portion rotatably connected to the universal joint portion 114 via a third rotation shaft 123 .

[0056] The first link member 112 is also formed with an operation pedal 112C that extends outward in the width direction of the loading platform 10. When the operation pedal 212C is depressed, the first link member 112 and the third link member 113 rotate relative to each other around the second rotation shaft 122 and are arranged bent or linearly. As a result, the crossing angle θ formed between the first link member 112 and the third link member 113 at the second rotation shaft 122 changes.

[0057] When the first link member 112 and the third link member 113 are arranged linearly and the first rotating shaft 121, the second rotating shaft 122, and the third rotating shaft 123 are arranged on a straight line, the dead center of the toggle mechanism 110 is formed. Furthermore, when the toggle mechanism 110 forms the dead point, the pressing portion 112S comes into contact with and presses the lower surface 111S of the mounting bracket 111, thereby holding the toggle mechanism 110 at the dead point.

[0058] On the other hand, when the operating pedal 212C is kicked from below (moved upward), the first link member 112 and the third link member 113 rotate and bend around the second rotation shaft 122, and the toggle mechanism 110 is released from the dead center. As a result, the wheel section 17A rises.

[0059] 10 and 11, universal joint 114 includes, for example, a pair of opposing wall portions 114B connected to main wall portion 114A and extending upward from main wall portion 114A, a pair of wall portions 114C arranged perpendicular to the pair of opposing wall portions 114B when viewed along the thickness direction of main wall portion 114A, connected to main wall portion 114A, and extending downward from main wall portion 114A (in the opposite direction to the pair of opposing wall portions 114B) and facing each other, rubber (elastic member) 114E arranged between the pair of opposing wall portions 114C and layered in order from main wall portion 114A, and metal plate 114F. Also, a third rotating shaft 123 is inserted through the pair of opposing wall portions 114B, and a fourth rotating shaft 124 is inserted through the pair of opposing wall portions 114C.

[0060] That is, the universal joint portion 114 connects the third rotating shaft 123 and the fourth rotating shaft 124 in directions perpendicular to each other, and allows the third rotating shaft 123 and the fourth rotating shaft 124 to rotate around each other, thereby forming a universal joint.

[0061] Universal joint portion 114 has third link member 113 disposed inside a pair of opposing wall portions 114B, and is rotatably connected to second link member 113 via third rotation shaft 123. Universal joint portion 114 also has arm member 115 disposed outside universal joint portion 114C, and is rotatably connected to arm member 115 via fourth rotation shaft 124.

[0062] In addition, since the main wall portion 114A is provided with a rubber (elastic member) 114E and a metal plate 114F laminated in this order, even if a heavy object is loaded on the receiving platform 10 and the receiving platform 10 bends, the dimensional change due to the bending is absorbed, and the wheel portion 17A can be easily raised and lowered.

[0063] When the position of the fourth rotation shaft 124 changes, the arm member 115 rotates around the arm rotation shaft 125, causing the arm member 115 to swing.

[0064] The arm rotation shaft 125 is located on the opposite side of the fourth rotation shaft 124 from the axle 17D. Furthermore, the arm rotation shaft 125 is located above the axle 17D and below the fourth rotation shaft 124.

[0065] The restoring spring 130 is made of, for example, a tension coil spring, and connects one end of the arm member 115 to the mounting bracket 111 . Then, one end of the arm member 115 is pulled upward. As a result, when the dead point of the toggle mechanism 110 is released, the arm member 115 is rotated around the arm rotation shaft 125, and the wheel portion 17A is raised.

[0066] Next, the operation of the caster receiving section will be described with reference to FIG. FIG. 12 is a perspective view illustrating an outline of a state in which the transporting carts are stacked one on top of another.

[0067] As shown in Figure 12, by tilting and tilting the support member 20 of the transport cart 100, the free-wheel caster 171 and fixed-wheel caster 172 of another transport cart 100 can be stored in the caster storage section 10U and caster storage section 10V of the transport cart 100 located below. As a result, a plurality of transport carts 100 can be stored in a stacked manner.

[0068] At this time, the fixed wheel casters 172 of the transporting cart 100 are accommodated within predetermined ranges in the front-rear and width directions by the guide recesses 10D of the caster accommodating portions 10V, allowing the transporting cart 100 to be stably loaded.

[0069] At this time, since the caster storage section 10U is formed larger than the free-wheel caster 171, the free-wheel caster 171 is prevented from getting caught on the cargo receiving platform 10, etc., and the fixed-wheel caster 172 can be easily and efficiently stored in the caster storage section 10V.

[0070] According to the transport cart 100 of the first embodiment, the corner guard member 30 is arranged at the corner of the outer contour portion defined by the cargo receiving platform 10 and the support pillar holding portion 12, so that when the transport cart 100 collides with a wall, pillar, etc., or another transport cart, the impact of the collision on the transport cart can be mitigated. Furthermore, in the event of a collision of the transporting cart 100, the hands gripping the support members 20 are prevented from being pinched, thereby improving safety during transport work.

[0071] Furthermore, according to the transport cart 100, corner guard members 30 are arranged at the four corners of the outer contour portion, so that even if any part of the transport cart 100 collides, hands are prevented from being pinched, thereby improving safety during transport work.

[0072] Furthermore, according to the transport cart 100, the corner guard member 30 has multiple recesses 35 formed therein that are recessed from the surface positioned on the outside when viewed in a plane toward the outer contour portion, thereby efficiently mitigating the impact when the transport cart 100 collides.

[0073] Furthermore, according to the transport cart 100, the upper surface of the corner guard member 30 is formed flush with the upper surface 10A of the cargo receiving platform 10, so that the corner guard member 30 does not get in the way when loading cargo onto the cargo receiving platform 10, and even when cargo is loaded on the corner guard member 30, the cargo can be stably supported.

[0074] Furthermore, according to the transport cart 100, the corner guard member 30 is provided with an engaging portion 38, which engages with L-shaped grooves (engaged portions) 12T, 12S formed in the support pillar holding portion 12 to hold it to the outer contour portion C, thereby preventing the corner guard member 30 from peeling off (coming off) from the outer contour portion (load receiving platform, support pillar member) C. As a result, safety during transportation work can be stably improved.

[0075] Furthermore, according to the transport cart 100, the support member 20 is supported by a support member support bolt 13 arranged on the cargo receiving platform 20 and is configured to be able to stand upright or tilt relative to the cargo receiving platform 10, so that by tilting the support member 20, the space occupied by the transport cart 100 (for example, the space required for storage) can be reduced.

[0076] Furthermore, according to the transport cart 100, of the three pairs of casters 17 arranged along the front-to-rear direction of the cargo receiving platform 10, the fixed wheel caster 172 arranged in the center in the front-to-rear direction is configured so that the wheel section 17A can be raised and lowered relative to the floor surface, so that this caster 172 can be raised as required for the transport work, thereby improving workability and safety during the transport work.

[0077] According to the transport cart 100 of the first embodiment, the fixed wheel caster 172 is equipped with a liftable wheel support portion 17C, which allows the wheel portion 17A to be raised and lowered, so that by lifting the wheel portion 17A off the floor surface, the transport cart 100 can be moved laterally (widthwise) easily and efficiently.

[0078] Furthermore, according to the transporting cart 100, the fixed-wheel caster 172 is provided with an operating pedal 112C, so that the wheel section 17A can be lowered or raised by the operating pedal 112C. As a result, transporting work can be carried out efficiently.

[0079] Furthermore, the transport cart 100 is equipped with a support support bracket 18, which supports the free end 20F of the tilted support member 20, allowing the upper side 20A and lower side 20B of the support member 20 to be positioned at a predetermined height.

[0080] Furthermore, according to the transport cart 100, when the support member 20 is tilted and laid down, the upper side surface 20A of the support member 20 is positioned below the receiving surface 10A of the receiving platform 10, thereby preventing damage to the support member 20 due to the weight of the cargo loaded on the receiving platform 10.

[0081] Furthermore, according to the transport cart 100, the lower surface 20B of the support member 20 is positioned higher than the lower surface 10B of the cargo receiving platform 10, so that even if the forks of a forklift are inserted under the cargo receiving platform 10, the support member 20 can be prevented from coming into contact with the forks and being damaged.

[0082] Second Embodiment A transport cart according to a second embodiment of the present invention will be described below with reference to Fig. 13. Fig. 13 is a front view illustrating the schematic configuration of the transport cart according to the second embodiment. In FIG. 13, reference numeral 200 denotes a transport cart.

[0083] As shown in FIG. 13, the transport cart 200 includes, for example, a load receiving platform 10, a support pole holder 12, casters 17, support pole members 20, and corner guard members 30. The support member 20 can be set upright relative to the loading platform 10 or tilted down.

[0084] The transport cart 200 differs from the first embodiment in that, while the transport cart 100 is equipped with three pairs of casters 17 in the front-to-rear direction, the transport cart 200 is equipped with two pairs of free-wheel casters 171 (17) arranged on the front side F and rear side R of the cargo receiving platform 10. As the rest is the same as the first embodiment, the same reference numerals are used and the description will be omitted.

[0085] <Third embodiment> A transport cart according to a third embodiment of the present invention will be described below with reference to Fig. 14. Fig. 14 is a front view illustrating the schematic configuration of the transport cart according to the third embodiment. In FIG. 14, reference numeral 300 denotes a transport vehicle, reference numeral 20 denotes a support member, reference numeral 20A denotes the upper side of the support member in a laid-down state, and reference numeral 20B denotes the lower side of the support member in a laid-down state.

[0086] As shown in FIG. 14, the transport cart 300 includes, for example, a load receiving platform 10, a support pole holder 12, casters 17, support pole members 20, and corner guard members 30. The support member 20 can be erected or tilted relative to the loading platform 10.

[0087] The transport cart 300 is configured such that, for example, when the support member 20 pivotally supported by the support holding portion 12 is tilted and laid down, the side surface 20A located on the upper side of the support member 20 is positioned flush with the load receiving surface (upper surface of the load receiving platform) 10A, and the side surface 20B located on the lower side of the support member 20 is positioned at a higher position than the lower surface 10B of the load receiving platform. Other than that, it is the same as the first embodiment, so the same reference numerals are used and the description will be omitted.

[0088] <Fourth embodiment> Hereinafter, a fourth embodiment of the present invention will be described with reference to FIG. FIG. 15 is a plan view illustrating a schematic configuration of a transport cart according to the fourth embodiment. In Figure 15, symbol 400 indicates a transport cart, symbol 410 indicates a loading platform, symbol 412 indicates a support column holder, symbol 413 indicates a support column member support bolt (support column shaft support member), symbol 420 indicates a support column member, and symbol 430 indicates a corner guard member.

[0089] As shown in Figure 15, the transport cart 400 includes, for example, a cargo receiving platform 410 having a rectangular outer shape in a plan view, a support pole holding portion 412, casters (not shown), a support pole member 420, and a corner guard member 430.

[0090] As shown in Figure 15, the pillar holding portion 412 is, for example, a cylindrical member that is rectangular in plan view, and two are arranged on each side of the front side F and rear side R of the receiving platform 410 in the width direction (near the center), with their hollow portions aligned in the vertical direction. The support pillar holders 412 are disposed in recesses recessed inward from the end faces of the front side F and rear side R of the loading platform 410. Specifically, the support pillar holders 412 are flush with the end faces of the loading platform 410 on the front side F and rear side R. Further, in the support pole holding portion 412, a support pole member support bolt (support pole shaft support member) 413 is disposed so as to pass through opposing wall portions of the receiving platform 410 in the width direction.

[0091] The support member 420 is formed, for example, from a square pipe, and at the bottom of the support member 420, a long hole (not shown) is formed along the longitudinal direction in the wall portion facing the width direction of the cargo receiving platform 410. The support column member 420 is pivotally supported by the support column member support bolt 413 by inserting the support column member support bolt 413 into this elongated hole, and is movable relative to the support column member support bolt 413 in the longitudinal direction.

[0092] As a result, the support member 420 can be inserted into the support member holding portion 412 while standing upright relative to the receiving platform 410, and by removing it from the support member holding portion 412, it can rotate around the support member support bolt 413 and tilt relative to the receiving platform 410. In addition, a groove (not shown) is formed along the longitudinal direction on the upper surface of the loading platform 410. The tilted support member 420 is stored in this groove (not shown), so that the support member 420 does not protrude from the upper surface of the loading platform 410.

[0093] As shown in FIG. 15, the corner guard members 430 are arranged at the four corners of the outer contour portion C of the transport cart 400. In the fourth embodiment, the outer contour portion C of the transport cart 400 when viewed from above is defined by the outer contour of the load receiving platform 410 and the outer contour of the support column holder 412. Specifically, the corners of the outer contour portion C of the transport cart 400 are the four corners of the load receiving platform 410.

[0094] 15, the corner guard members 430 are formed so as to protrude from the end faces of the front side F and rear side R of the load receiving platform 410, and also protrude laterally from the side faces of the load receiving platform 410. The amount of protrusion from the end faces of the front side F and rear side R of the load receiving platform 410 and from the side faces of the load receiving platform 410 can be set arbitrarily, but it is preferable that each be, for example, 30 mm or more. The rest is the same as in the first embodiment, so the explanation will be omitted.

[0095] Fifth Embodiment Hereinafter, a fifth embodiment of the present invention will be described with reference to FIG. FIG. 16 is a plan view illustrating a schematic configuration of a transport cart according to the fifth embodiment. In Figure 16, symbol 500 indicates a transport cart, symbol 510 indicates a loading platform, symbol 512 indicates a support column holder, symbol 513 indicates a support column member support bolt (support column shaft support member), symbol 520 indicates a support column member, and symbol 530 indicates a corner guard member.

[0096] As shown in Figure 16, the transport cart 500 includes, for example, a cargo receiving platform 510 having a rectangular outer shape in a plan view, a support pole holding portion 512, casters (not shown), a support pole member 520, and a corner guard member 530.

[0097] As shown in Figure 16, the pillar holding portion 512 is, for example, a cylindrical member that is rectangular in plan view, and two are arranged on each side of the front side F and rear side R of the loading platform 510 in the width direction (near the center), with their hollow portions aligned in the vertical direction. The support pole holders 512 are attached to the end faces of the front side F and rear side R of the load receiving platform 510, and are disposed so as to protrude from the load receiving platform 510 toward the front side F and rear side R. Further, in the support pole holding portion 512, a support pole member support bolt (support pole shaft support member) 513 is disposed so as to pass through opposing wall portions of the receiving platform 510 in the width direction.

[0098] The support member 520 is formed, for example, from a square pipe, and at the bottom of the support member 520, a long hole (not shown) is formed along the longitudinal direction in the wall portion facing the width direction of the cargo receiving platform 510. The support column member 520 is pivotally supported by the support column member support bolt 513 by inserting the support column member support bolt 513 into this elongated hole, and is movable relative to the support column member support bolt 513 in the longitudinal direction.

[0099] As a result, the support member 520 can be inserted into the support member holding portion 512 while standing upright relative to the receiving platform 510, and by removing it from the support member holding portion 512, it can rotate around the support member support bolt 513 and tilt relative to the receiving platform 510. Furthermore, a groove (not shown) is formed along the longitudinal direction on the upper surface of the loading platform 510. The tilted support member 520 is stored in this groove (not shown), so that the support member 520 does not protrude from the upper surface of the loading platform 510.

[0100] As shown in FIG. 16, the corner guard members 530 are arranged at the four corners of the outer contour portion C: of the transport cart 500. In the fifth embodiment, the outer contour portion C of the transport cart 500 when viewed from above is defined by the outer contour of the load receiving platform 510 and the outer contour of the support pillar holder 512 protruding from the load receiving platform 510 to the front side F and the rear side R. Specifically, the corners of the outer contour portion C of the transport cart 500 are the four corners of the load receiving platform 510.

[0101] 16, the corner guard members 530 are formed to protrude from the end faces of the front side F and rear side R of the cargo receiving platform 510. The corner guard members 530 protrude laterally from the side surfaces of the cargo receiving platform 510 and extend outward (to the vicinity of) the support pole holding portions 512 in the width direction of the cargo receiving platform 510. The protrusion amounts from the end faces of the front side F and rear side R of the load receiving platform 510 and from the side surfaces of the load receiving platform 510 can be set arbitrarily, but it is preferable that each be 30 mm or more, for example.

[0102] As shown in FIG. 16, the corner guard member 530 preferably projects forward F and backward R beyond the support pole holding portion 512, for example. The rest is the same as in the first and fourth embodiments, so a description thereof will be omitted.

[0103] Sixth Embodiment Hereinafter, a sixth embodiment of the present invention will be described with reference to FIG. FIG. 17 is a plan view illustrating a schematic configuration of a transport cart according to the sixth embodiment. In FIG. 17, reference numeral 600 denotes a transport cart, and reference numeral 630 denotes a corner guard member.

[0104] As shown in FIG. 17, the transport cart 600 includes a load receiving platform 510, a support pole holder 512, casters (not shown), support pole members 520, and corner guard members 630. The receiving platform 510, the support pole holder 512, and the support pole member 520 are the same as those in the fifth embodiment, so they are denoted by the same reference numerals and the description thereof will be omitted.

[0105] As shown in FIG. 17, the corner guard members 630 are arranged at the four corners of the outer contour portion C of the transport cart 600. In the sixth embodiment, the outer contour portion C of the transport cart 600 when viewed from above is defined by the outer contour of the load receiving platform 510 and the outer contour of the support pillar holder 512 protruding from the load receiving platform 510 to the front side F and rear side R. Specifically, the corners of the outer contour portion C of the transport cart 600 are the four corners of the load receiving platform 510.

[0106] 17, the corner guard members 630 are formed so as to protrude from the end faces of the front side F and rear side R of the load receiving platform 510, and also protrude laterally from the side faces of the load receiving platform 510. The amount of protrusion from the end faces of the front side F and rear side R of the load receiving platform 510 and from the side faces of the load receiving platform 510 can be set arbitrarily, but it is preferable that each be, for example, 30 mm or more.

[0107] 17, the corner guard member 630 is formed with a recess 630U for accommodating the pole holding portion 512, and is formed to protrude further forward F and rearward R than the pole holding portion 512. The rest is the same as in the first and fifth embodiments, so a description thereof will be omitted.

[0108] According to the transport cart 600 of the sixth embodiment, a recess 630U is formed in the corner guard member 630, and the support pole holding portion 612 is housed in the corner guard member 630, so that it is possible to prevent a hand holding the support pole member 520 from being pinched by a wall or the like. Furthermore, when the transport cart 600 collides with a wall, another cart, or the like, the force of the collision is mitigated, and damage to the wall, another cart, or the like can be prevented.

[0109] Seventh Embodiment Hereinafter, the seventh embodiment of the present invention will be described with reference to FIG. FIG. 18 is a plan view illustrating a schematic configuration of a transport cart according to the seventh embodiment. In FIG. 18, reference numeral 700 denotes a transport cart, and reference numeral 730 denotes a corner guard member.

[0110] As shown in FIG. 18, the transporting cart 700 includes, for example, a load receiving platform 510, a support pole holder 512, casters (not shown), support pole members 520, and corner guard members 730. The receiving platform 510, the support pole holder 512, and the support pole member 520 are the same as those in the fifth embodiment, so they are denoted by the same reference numerals and the description thereof will be omitted.

[0111] As shown in FIG. 18, the corner guard members 730 are arranged at the four corners of the outer contour portion C of the transport cart 700. In the sixth embodiment, the outer contour portion C of the transport cart 700 when viewed from above is defined by the outer contour of the cargo receiving platform 510 and the outer contour of the support pillar holder 512 that protrudes from the cargo receiving platform 510 to the front side F and rear side R. Specifically, the corners of the outer contour portion C of the transport cart 700 are the four corners of the cargo receiving platform 510.

[0112] 18, the corner guard members 730 are formed so as to protrude from the end faces of the front side F and rear side R of the load receiving platform 510, and also protrude laterally from the side faces of the load receiving platform 510. The amount of protrusion from the end faces of the front side F and rear side R of the load receiving platform 510 and from the side faces of the load receiving platform 510 can be set arbitrarily, but it is preferable that each be, for example, 30 mm or more.

[0113] As shown in FIG. 18, if safety can be ensured, the amount of protrusion of the corner guard member 730 to the front side F and rear side R may be smaller than the amount of protrusion of the support pole holding portion 512. The rest is the same as in the first and fifth embodiments, so a description thereof will be omitted.

[0114] The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the invention. For example, in the above embodiment, the corner guard members 30, 430, 530, 630, 730 are arranged at the four corners of the outer contour C of the transport carts 100, 200, 300, 400, 500, 600, 700, but the positions and number of the corner guard members can be set arbitrarily. For example, they may be arranged at either a corner on the front side F or rear side R of the loading platform 10, 410, 510, or at either a corner on the left or right side. They may also be arranged in one location.

[0115] In the above embodiment, the corner guard members are made of a flexible and pliable vinyl chloride elastomer, but the material from which the corner guard members are made can be set as desired. For example, the corner guard members may be made of a resin material other than a vinyl chloride elastomer, or may be made of a material that is not flexible or pliable.

[0116] In the above embodiment, the corner guard members 30, 430, 530, and 730 are generally L-shaped in plan view, with the corners rounded, but the shape and configuration of the corner guard members can be arbitrarily set. For example, the front, rear, and side surfaces may be formed from two or more separate members, or one of the corners may be formed in a shape other than an arc or rounded shape.

[0117] In addition, in the above embodiment, the case where ten recesses 35 recessed from the outside to the inside are formed in the corner guard member 30 is described, but whether or not recesses are formed in the corner guard member, and if recesses are formed, the shape, position, and number of recesses can be set arbitrarily. For example, the shape of the recess when viewed from the opening side may be set arbitrarily, such as a honeycomb shape (hexagonal), a circle, or a semicircle.

[0118] In the above embodiment, the case where the engaging portions 38A, 38B (38) are formed on the corner guard member 30 has been described, but it is possible to arbitrarily set whether or not to form the engaging portions 38A, 38B (38) on the corner guard member 30. For example, the engaging portion 38 may not be formed, or only one of the engaging portions 38A, 38B may be provided.

[0119] Furthermore, in the above embodiment, the engaging portions 38 of the corner guard member 30 are engaging portions 38A, 38B that are L-shaped when viewed from above, and are described as engaging with L-shaped grooves (engaged portions) 12T, 12S formed in the support pole holding portion 12, but the configuration of the engaging portions 38 can be set arbitrarily, and for example, they may be formed into other shapes, such as T-shaped protrusions, that allow the corner guard member 30 to be accurately attached.

[0120] Furthermore, in the above embodiment, the case where the corner guard member 30 is disposed flush with the upper surface 10A of the load receiving platform 10 has been described, but the height positions of the upper and lower surfaces of the corner guard member 30 can be set arbitrarily. For example, the corner guard member 30 may be set higher than the upper surface 10A of the load receiving platform 10, or the corner guard member 30 may be disposed between the upper surface 10A and the lower surface 10B of the load receiving platform 10. Furthermore, the lower surface of the corner guard member 30 may be disposed flush with the lower surface 10B of the load receiving platform 10, or may be disposed lower than the lower surface of the load receiving platform 10.

[0121] In addition, in the above embodiment, the case where the transport carts 100, 200, 300, 400, 500, 600, 700 are equipped with tiltable support members 20, 420, 520 has been described, but corner guard members may also be used for transport carts equipped with fixed support members or transport carts equipped with insertable support members, for example.

[0122] Furthermore, in the above embodiment, the case was described in which the fixed-wheel caster 172 is equipped with a liftable wheel support portion 17C and is configured so that the wheel portion 17A can be raised and lowered by the toggle mechanism 110, but whether or not the fixed-wheel caster 172 is equipped with a lifting mechanism may be set arbitrarily.

[0123] Furthermore, when raising and lowering the wheel unit 17A, it may be arbitrarily determined whether or not to use the lift-up type wheel support unit 17C configured with a swing mechanism, and whether or not the lift-up type wheel support unit 17C can raise and lower the wheel unit 17A using the toggle mechanism 110. For example, the axle unit 17A may be configured to be liftable and lowerable using a plunger, a coil spring, or the like.

[0124] Furthermore, in the above embodiment, a case was described in which a long hole 22 is formed along the longitudinal direction of the support member 20 and a support member axial support bolt (protrusion) 13 is arranged in the support holding portion 12, but a configuration in which a long hole is formed along the vertical direction of the support holding portion 12 and a support member axial support pin (protrusion) or the like is arranged in the support member 20 may also be used.

[0125] Furthermore, in the above embodiment, the case has been described where the upper side surface 20A of the tilted support member 20 is positioned lower than the load receiving platform 10 or flush with the load receiving surface 10A, and the lower side surface 20B is positioned higher than the lower surface 10B of the load receiving platform 10, but the positional relationship in the height direction between the upper side surface 20A of the support member 20 and the load receiving surface 10A of the load receiving platform 10, and between the lower side surface 20B of the support member 20 and the lower surface 10B of the load receiving platform 10, may be set arbitrarily. For example, the upper side surface 20A of the support member 20 may be positioned higher than the load receiving surface 10A of the load receiving platform 10, and the lower side surface 20B may be positioned lower than the lower surface 10B of the load receiving platform 10.

[0126] Furthermore, in the above embodiment, the case where the transport cart 100 is equipped with caster storage sections 10U and 10V has been described, but whether or not the caster storage sections 10U and 10V are equipped, and if the caster storage sections 10U and 10V are equipped, the shape, size, configuration, arrangement, etc. can be set arbitrarily. [Industrial Applicability]

[0127] The transporting cart according to the present invention can improve safety during transporting work and is therefore industrially applicable. [Explanation of symbols]

[0128] 100, 200, 300, 400, 500, 600, 700 Transport cart 10, 410, 510 loading platform 10A Load receiving surface (load receiving platform top surface) 10B Underside of loading platform 10U, 10V Caster storage area 12, 412 Post holder 17 Caster 171 Free Wheel Caster 172 Fixed Wheel Caster 17A Wheels (casters) 17B Wheel support part (caster) 17C Elevating wheel support (caster) 17D axle 20, 420, 520 Support members 20A Upper surface of support part (tilted state) 20B Lower surface of support part (tilted state) 20F Free end of support member 22 slotted hole 30, 430, 530, 630, 730 Corner guard material 35 Recessed portion (corner guard) 110 Toggle mechanism 112 first link member 113 Second link member 114 Universal joint part 115 Arm member

Claims

[Claim 1] a cargo receiving platform formed in a rectangular shape in a plan view on which cargo is loaded; a support member provided upright on the receiving platform closer to the center than the end in the width direction of the receiving platform in a plan view; a plurality of casters each having a wheel portion that is arranged under the loading platform and is rotatable around an axle; corner guard members that are disposed at corners of an outer contour portion defined by the loading platform and the support members when viewed from above and that protrude outward from the outer contour portion; Equipped with The support member is provided upright and protrudes toward a first side in the front-rear direction, the first side being outward from the loading platform in a plan view, the corner guard member protrudes further toward the first side in the front-rear direction than the support member, The corner guard member has a recess that opens to the second side in the front-rear direction and penetrates in the up-down direction, The lower end of the support member is disposed within the recess. A transport cart characterized by:

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