Transport cart and protective components

Abstract

To provide a carriage cart characterized in that a possibility that a user's hand is clamped with a surrounding wall is minimized, and a protective member.SOLUTION: A carriage cart 10 includes a placement part 20 on which an object to be carried is placed and in which an insertion hole HL1 into which a rod-like member P extending in a vertical direction is inserted is formed, and a protective member 40 that is attached to the insertion hole HL1 and ensures a distance D between a user's hand holding the rod-like member P and a wall surface. The protective member 40 includes an overhang 42 that overhangs by a predetermined overhanging quantity from an end surface of the placement part 20 in a plan view, and an insertion part 44 that is inserted into a gap S formed between the insertion hole HL1 and the rod-like member P inserted into the insertion hole HL1.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a transport cart and a protective member.

Background Art

[0002] Patent Document 1 describes a shock-absorbing member attached to a handcart such as a cart used for transporting goods in factories, warehouses, logistics centers, etc. This shock-absorbing member is characterized in that a locking hole is provided at the center of a main body made of a flexible material, and a notch portion that reaches the locking hole is provided on the side portion of the main body, so that the locking hole can be pried open.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] An object of the present invention is to provide a transport cart and a protective member in which the possibility that the user's hand is sandwiched between surrounding walls is reduced.

Means for Solving the Problems

[0005] The invention according to claim 1 includes a placement portion on which an object to be transported is placed and in which an insertion hole into which a rod-shaped member extending in the vertical direction is inserted, and a protective member attached to the insertion hole and securing a distance between the hand of a user holding the rod-shaped member and a wall surface. The protective member has, in plan view, an overhang portion that extends by a predetermined amount from the end of the mounting portion, and an insertion portion that is inserted into the gap formed between the insertion hole and the rod-shaped member inserted into the insertion hole, without being attached to the rod-shaped member. It is a transport cart.

[0006]

[0007] Claim 2 The invention described in 1In the transport trolley described above, a surface is formed on the back side of the protruding portion that is aligned with the end face of the previously described mounting portion.

[0008] Claim 3 The invention described in the claim 1 In the transport trolley described above, a rib is formed on the back side of the overhang, and a surface is formed on the rib that is aligned with the end face of the previously described mounting portion.

[0009] Claim 4 The invention described in the claim 1 In the transport trolley described above, the insertion portion has a snap-fit ​​that hooks onto the previously described mounting portion.

[0010] Claim 5 The invention described is based on claims 1 to 4 This is a protective member provided by the transport trolley described in any one of the items.

[0011] Claim 6 The invention described herein is characterized by having an insertion hole formed into which a rod-shaped member extending vertically is inserted, into which an object to be transported is placed. Having a mounting section A protective member that is attached to a transport trolley and secures the distance between the user's hand gripping the rod-shaped member and the wall surface, comprising an overhang portion that protrudes by a predetermined amount from the end face of the mounting portion when viewed from above, and the insertion hole 、 Inserted into the insertion hole ru The rod-shaped member and 、 Formed between ru In the gap Without being attached to the rod-shaped member A protective member comprising an insertion portion to be inserted. [Effects of the Invention]

[0012] According to the present invention, it is possible to provide a transport cart and protective member that reduces the possibility of the user's hand being caught in the surrounding walls. [Brief explanation of the drawing]

[0013] [Figure 1] This is a perspective view of a transport cart according to one embodiment of the present invention. [Figure 2]It is a plan view of the same transport cart. [Figure 3] It is a side view of the same transport cart. [Figure 4] It is an enlarged view of an insertion hole to which a protection member provided in the same transport cart is attached, corresponding to part A shown in FIG. 2. [Figure 5A] It is a perspective view of the protection member provided in the same transport cart as seen from above. [Figure 5B] It is a perspective view of the protection member provided in the same transport cart as seen from below. [Figure 6] It is an explanatory view showing the positional relationship of an insertion hole, a corner guard, and a protection member formed on a transport platform provided in the same transport cart. [Figure 7] (A) to (C) are explanatory views each showing a modification example of the shape of the insertion hole. [Figure 8A] It is an explanatory view showing the action of the protection member provided in the same transport cart to protect the user's hand. [Figure 8B] It is an explanatory view showing the action of the protection member provided in the same transport cart to protect the user's foot.

Mode for Carrying Out the Invention

[0014] Subsequently, with reference to the attached drawings, embodiments embodying the present invention will be described to facilitate understanding of the present invention. In the drawings, parts not related to the description may be omitted from illustration.

[0015] As shown in FIG. 1, a transport cart 10 according to an embodiment of the present invention includes a placement part 20, wheels 30, and a protection member 40, and is a platform cart capable of transporting a transported object of up to, for example, 800 to 1000 kg. The transported object is, for example, construction materials.

[0016] The placement part 20 has a transport platform 22 and a corner guard 24. The transport platform 22 is a rectangular platform in plan view, and the transported object is placed thereon.

[0017] As shown in Figures 2 and 3, the transport platform 22 has a frame 222, plate-shaped members 224a and 224b, and socket members 226 provided at each corner. Frame 222 is a frame structure composed of members joined together. The plate-shaped members 224a and 224b are plate-shaped members joined to the frame 222 and form a mounting surface on which the transported object is placed. As shown in Figure 4, the socket member 226 is a cylindrical member with an insertion hole HL1 that extends vertically and penetrates through it. A single pipe (an example of a rod-shaped member) P, used in construction work, is inserted into this insertion hole HL1. The socket member 226 is provided with a rod-shaped receiver 228 that crosses the lower opening of the insertion hole HL1 when viewed from above, and by contacting the lower end of the single pipe P, the single pipe P is supported so that it extends upward from the transport platform 22.

[0018] Each insertion hole HL1 has a shape that, when viewed from above, resembles a circle with a portion cut out. When a single pipe P is inserted, a gap S is created in this cut-out portion.

[0019] The single pipes P inserted into each insertion hole HL1 function as handles for the user to grip and move the transport cart 10, or as fall prevention fences to prevent transported items longer than the transport platform 22 from falling off.

[0020] The corner guards 24 are resin bumpers provided at each corner of the transport platform 22, which help to mitigate the impact when the transport cart 10 comes into contact with a person or a wall. The corner guard 24 is screwed to the end face (side) of the transport platform 22, and is set so that the position of the top surface of the corner guard 24 and the position of the top surface of the transport platform 22 coincide, so that no large step is formed. Note that "coincidence" here does not mean a strict coincidence. That is, "coincidence" means that design and manufacturing errors are acceptable, and that they "substantially coincide" (the same applies hereafter). Specifically, it is sufficient that there is no problem when the transported object is carried with both the transport platform 22 and the corner guard 24 on it; for example, a step of about ±5 mm is acceptable. stomach.

[0021] As shown in Figure 3, the wheels 30 are attached to the underside of the transport platform 22 at intervals. Ta Ki These are casters, and for example, six are provided depending on the weight of the object being transported. The casters are equipped with stoppers, and a pedal 302 is provided to operate the stoppers.

[0022] The protective member 40 is a resin member attached to the insertion hole HL1, and it can ensure the distance D (see Figure 8A) between the single pipe P held by the user and the wall surface W where the transport trolley 10 is used. As shown in Figures 5A and 5B, the protective member 40 has an integrally molded protruding portion 42 and an insertion member 44.

[0023] As shown in Figure 6, the overhang portion 42 extends outward from the end of the mounting portion 20 (corner guard 24) by a predetermined amount, and a hole HL2 (see Figure 5A) is formed through which the single pipe P passes, corresponding to the insertion hole HL1. The height of the overhang portion 42 is positioned to contact the user's lower leg, and the surface of the overhang portion 42 is at a height H from the surface of the transport platform 22, as shown in Figure 3. This height H is set to be, for example, 5 to 8 mm or less to prevent the transported object from becoming unstable. The outer thickness t of the overhang portion 42 is set to be, for example, 15 mm or more.

[0024] The underside of the overhang 42 rests on the transport platform 22 and is cut out along the end face of the mounting section 20. More specifically, as shown in Figure 5B, a plurality of ribs 422 are formed on the underside of the overhang 42, each extending from the outside toward the end face of the mounting section 20 (the end face of the corner guard 24), and on the inside of each rib 422, opposing surfaces 424 are formed that face the end face of the mounting section 20 (the end face of the corner guard 24). Therefore, even if the protruding portion 42 comes into contact with an obstacle, the opposing surface 424 along the end face of the mounting portion 20 comes into contact with this end face, and thus receives the resulting impact force, reducing the possibility of damage to the protective member 40. Furthermore, as shown in Figure 6, there may be a small gap between the end face of the mounting portion 20 (the end face of the corner guard 24) and the opposing surface 424, or they may be in contact without any gap. In other words, it is sufficient that the end face of the mounting portion 20 (the end face of the corner guard 24) and the opposing surface 424 are configured to receive the impact force from the collision. Furthermore, a projection 426 is provided on the back side of the protruding portion 42. By inserting this projection 426 into the hole HL3 (see Figure 4) formed in the corner guard 24, the protective member 40 can be attached in a more stable state compared to when the projection 426 is not provided.

[0025] As shown in Figure 5B, the insertion member (an example of an insertion part) 44 is a pair of members that extend downward from the edge of the hole HL2 of the protruding part 42, and as shown in Figure 6, it is inserted into the gap S formed in the insertion hole HL1. The tip of the insertion member 44 has a snap-fit ​​482 that hooks onto the lower opening end of the insertion hole HL1 of the transport table 22. However, any other mounting means may be provided in place of the snap-fit ​​482, as long as the insertion member 44 can be attached to the gap S.

[0026] Here, the shape of the insertion hole is not limited to the shape of insertion hole HL1, but can be any shape as long as a gap is formed between the insertion hole and the inserted single pipe P. Therefore, for example, the insertion holes may be non-circular insertion holes HL1a to HL1c when viewed from above, as shown in Figures 7(A) to 7(C), respectively.

[0027] The insertion hole HL1a shown in Figure 7(A) has a shape that includes a quadrant when viewed from above. When a single pipe P is inserted into this insertion hole HL1a, the lower end is supported by a receiver (not shown), and two gaps Sa are formed.

[0028] The insertion hole HL1b shown in Figure 7(B) is hexagonal in plan view. When a single pipe P is inserted into this insertion hole HL1b, the lower end is supported by a receiver (not shown), and two gaps Sb are formed.

[0029] The insertion hole HL1c shown in Figure 7(C) is circular in shape when viewed from above, with some of the inner surfaces of the opposing sides cut out. When a single pipe P is inserted into this insertion hole HL1c, the lower end is supported by a receiver (not shown), and two gaps Sc are formed.

[0030] Next, we will explain how to use the transport trolley 10, and in particular the protective member 40. The transport trolley 10 can be moved, for example, by being placed on an elevator installed at a construction site. Elevators used at construction sites are generally 800 mm wide, and the width of the mounting section 20 of the transport trolley 10 (the width of the transport trolley 10 when the protective member 40 is not attached) is set to be less than 800 mm so that it can be placed on the elevator without the protective member 40 attached.

[0031] However, the transport trolley 10 with the protective member 40 attached has an overhang 42 that protrudes outward, and its width exceeds 800 mm, making it impossible to place it on an elevator. Therefore, the protective member 40 can be easily attached to and detached from the transport trolley 10, as shown below, so that it can be placed on an elevator.

[0032] To attach the protective member 40, all that is required is to insert the insertion member 44 into the gap S from above the insertion hole HL1, and the snap fit 482 formed at the tip of the insertion member 44 will catch on the lower end of the insertion hole HL1, thereby attaching it. On the other hand, to remove the protective member 40, the tip of the insertion member 44, on which the snap fit 482 is formed, is simply bent in a direction that brings them closer together, and the protective member 40 can be pulled upward and removed.

[0033] Next, the function of the protective member 40 will be explained. As shown in Figure 8A, when the transported object M1 is placed on the transport cart 10 and the user is moving it by gripping the left and right single pipes P with their left and right hands respectively, if the corner of the transport cart 10 collides with the wall W, the protective member 40 will come into contact with the wall W, thus ensuring a distance D between the single pipes P held by the user and the wall surface. Therefore, the risk of the user's hand getting caught in the wall W is suppressed.

[0034] As shown in Figure 8B, for example, when moving a transport cart 10 loaded with many long steel materials (an example of transported items) M2 that protrude from the cart, up to a weight close to the maximum load capacity, the standing positions are restricted by the steel materials M2. Therefore, user A, who acts as the steerer on the front side in the direction of travel, and user B, who acts as the propeller on the rear side, must stand diagonally opposite each other, and move the transport cart 10 while communicating with each other. In this usage state, when the corner of the transport cart 10 comes into contact with the user A's leg, the protruding part 42 first presses against the lower leg (calf or shin), thereby ensuring a distance from the range of motion of the wheel 30 (a circle with radius r). Therefore, the protective member 40 prevents the user's foot from being run over by the wheel 30 within the area indicated by the hatching.

[0035] As explained above, the transport cart 10 reduces the possibility of the user's hands getting caught in the surrounding walls. It also reduces the possibility of the user's feet getting caught on the wheels 30.

[0036] Although embodiments of the present invention have been described above, the present invention is not limited to the above-described forms, and any changes to the conditions, etc., that do not depart from the gist of the invention are all within the scope of application of the present invention. The rod-shaped member is not limited to a single pipe P; any rod-shaped member that fits the insertion hole is acceptable. [Explanation of Symbols]

[0037] 10 Transport carts 20 Mounting section 22 Transport platform 24 Corner Guard 30 wheels 40 Protective component 42 Protruding section 44 Insertion member 222 frames 224a, 224b Plate-shaped members 226 Socket component 302 Pedals 422 Rib 424 Opposing surfaces 426 Protrusion 482 Snap-Fit HL1 insertion hole HL1a, HL1b, HL1c insertion holes HL2, HL3 hole P Single pipe S Gap Sa, Sb, Sc gap M1 Transported object M2 steel material

Claims

1. A mounting section on which the object to be transported is placed and into which an insertion hole is formed into which a rod-shaped member extending in the vertical direction is inserted, A protective member is attached to the insertion hole and is provided to ensure a distance between the user's hand, which is gripping the rod-shaped member, and the wall surface. The protective member has a protruding portion that, when viewed from above, extends by a predetermined amount from the end of the mounting portion, A transport trolley having an insertion hole and a rod-shaped member inserted into the insertion hole, and an insertion portion that is inserted into the gap formed between the rod-shaped member and the gap formed between the rod-shaped member and the insertion hole, without being attached to the rod-shaped member.

2. In the transport trolley according to claim 1, A transport trolley having a surface formed on the back side of the aforementioned protruding portion that is aligned with the end face of the previously described mounting portion.

3. In the transport trolley according to claim 1, A transport trolley having a rib formed on the back side of the protruding portion, and a surface formed on the rib that is aligned with the end face of the aforementioned mounting portion.

4. In the transport trolley according to claim 1, A transport trolley having a snap-fit ​​mechanism formed in the insertion part that hooks onto the previously described mounting part.

5. A protective member provided in a transport trolley according to any one of claims 1 to 4.

6. A protective member that is attached to a transport trolley having a mounting section on which an object to be transported is placed and into which an insertion hole is formed, into which a rod-shaped member extending in the vertical direction is inserted, and which ensures a distance between the user's hand holding the rod-shaped member and the wall surface, A protruding portion that extends from the end face of the aforementioned mounting portion by a predetermined amount when viewed from above, A protective member comprising an insertion portion which is inserted into the gap formed between the insertion hole and the rod-shaped member inserted into the insertion hole, without being attached to the rod-shaped member.

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