Modified cart with foldable work desk installed

Abstract

To provide a transport cart that can be deformed into a plurality of forms depending on the shape of a cargo or the purpose so that only one transport cart can carry more cargoes, and can be also used as a work desk in various situations.SOLUTION: A transport cart structured on the basis of a base plate 15 and wheels 7,8 for supporting and transporting the base plate 15 comprises: a hand pushing handle 2 that can be attached and detached; a handle fixing part 6; and a handle storage part 9. As a result, the performance of a flat cart and a handcart is obtained. Top plates 10,11, side plates 12,13 for supporting the top plates, and a shelf board 14 that can be attached and detached are installed on top of the base plate 15. Connections between the base plate 15, side plates 12,13, and the top plates 11 are coupled with a hinge 21 or a stay bolt 22 so that it is possible to fold and go up / down the cart. As a result, the performance of a two-stage cart and a three-stage cart is obtained. The hinge 21 is also used to connect the top plates 10,11 so that the top plate 10 can be rotated by 180 degrees. The top plate is supported by the handle 2, and the cart can be used as a work desk as well.SELECTED DRAWING: Figure 15

Description

[Technical Field]

[0001] The present invention relates mainly to a transport cart, and also relates to an invention that has the function of a work desk. [Background technology]

[0002] Generally, transport carts are broadly divided into those with and without handles; those without handles are called flatbed carts, while those with handles are called push carts. In addition to single-tier push carts, there are also two-tier and three-tier push carts, which are useful for cargo that is not suitable for stacking, and the top can also be used as a work desk. On the other hand, single-tier push carts often have foldable handles, making them easy to store and carry. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-081053 Summary of the Invention [Problem to be solved by the invention]

[0004] The problem that this invention aims to solve is to provide a transport cart that can be used as a long work table to easily transport materials and supplies at construction sites, event venues, disaster-stricken areas, etc., as well as to easily perform a series of tasks such as opening, distributing, and processing.

[0005] Therefore, there is a transport cart described in Patent Document 1, which is very similar in the problem it aims to solve. However, when the transport cart described in Patent Document 1 is used as a work desk, the surface area of ​​the top plate is limited to the area of ​​the cart handle, making it cramped and unsuitable for uses such as those described in (

[0004] ). Furthermore, because the handle is joined to the base, it is not suitable for transporting loads that are wider in surface area or longer than the cart. Therefore, the present invention has been made to solve these problems, and aims to provide a transport cart that can expand the surface area of ​​the top plate as a work desk compared to conventional inventions and can be deformed to accommodate the shape of the load, allowing more loads to be transported with just one transport cart. [Effects of the Invention]

[0006] By using the transport cart of the present invention, it is now possible to transport a wide range of cargo using just one transport cart, including not only general cargo but also unstable and difficult-to-stack items, long rod-shaped items, and large board-shaped items.Furthermore, it has become easy to set up a long table suitable for work in any location. [Means for solving the problem]

[0007] To solve the above problems, the transport cart of the present invention comprises a base plate with wheels as a base, and a detachable push handle. A foldable top plate and side panels are connected to the top of the base plate with hinges and metal stays, and a middle plate for a movable shelf is also mounted. The base plate is surrounded by a frame, with a fixing section for the push handle on one side of the frame and a storage section for the push handle below the base plate, and these are the basic equipment.

[0008] In addition, a space is created in the push handle by sandwiching the support and horizontal joint between the front and back panels, providing a storage section for use in drawings, notebooks, etc., and an adjuster for adjusting the height is attached to the tip of the handle.

[0009] The folding side panels are equipped with rails and shelf brackets for movable shelves. Furthermore, the connection between the side panels and the top panel, or the connection between the side panels and the base panel, or both, are connected and reinforced with metal stays.

[0010] In the transport cart of the present invention, at least one of the base plate, side plates, top plate, middle plate and handle storage section may be made of resin.

[0011] In addition, when the table is set up for use as a work desk, the device for maintaining stability may be the brakes on the brake-equipped wheels. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a plan view showing the transport vehicle 1 of the present invention in a configuration when used as a platform vehicle. [Figure 2] FIG. 2 is a side view of the embodiment shown in FIG. [Figure 3] FIG. 2 is a rear view of the embodiment shown in FIG. [Figure 4] 1 is a side view showing a configuration in which the transport cart 1 of the present invention is used as a hand cart. [Figure 5] FIG. 5 is a rear view of the embodiment shown in FIG. [Figure 6] This is a side view showing the state in which the side frames 5 on the left and right are opened to allow the top board to be raised and lowered. [Figure 7] FIG. 7 is a rear view showing the state of FIG. 6. [Figure 8] FIG. 10 is a side view showing the top plate being raised and lowered. [Figure 9] FIG. 9 is a rear view showing the state of FIG. 8. [Figure 10] FIG. 1 is a side view showing the transport cart 1 when used as a two-stage cart and a work desk. [Figure 11] FIG. 11 is a rear view of the embodiment shown in FIG. [Figure 12] FIG. 1 is a side view showing the transport cart 1 when used as a three-stage cart and a work desk. [Figure 13] FIG. 13 is a rear view of the embodiment shown in FIG. [Figure 14] 13 is a cross-sectional view of the configuration shown in FIG. 12 taken along line AA in FIG. 15. [Figure 15] FIG. 1 is a side view showing the transport cart 1 when used as a long work desk. [Figure 16] FIG. 2 is a front view showing the push handle 2 in detail. [Figure 17] FIG. 2 is a side view showing the push handle 2 in detail. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, the structure, modified forms and methods of use of the present invention will be described with reference to the accompanying drawings 1 to 17.

[0014] Structure of the present invention First, regarding the transport cart 1, the transport cart 1 is based on a base plate 15 having wheels 7 and 8. The base plate 15 is surrounded by a front frame 3 and a rear frame 4, which are directly fixed to the base plate 15, and an openable side frame 5, which is fixed to the base plate 15 with hinges 21. Furthermore, the rear frame 4 is machined to allow for insertion of a push handle 2 for operation. Therefore, the joint between the base plate 15 and the rear frame 4 is sufficiently reinforced as necessary to withstand the load generated by operating the handle. Furthermore, on the top of the base plate 15, from top to bottom, top plates (upper and lower) 10 and 11 and side plates (upper and lower) 12 and 13 are fixed, respectively, with hinges 21 and stay hardware 22. Below that, a middle plate 14 is laid, and these plates are mounted so as to fit within the surrounding frame. Furthermore, the top plate 10 is machined for insertion and fixation, such as a leg fixing portion 27. In addition, a rail for storing the push handle 2 or a storage device related thereto is provided on the bottom surface of the base plate 15 at a position that does not interfere with the range of motion of the wheels 7, 8 at the four corners.

[0015] Next, regarding the structure of the push handle 2, the push handle 2 mainly consists of a handle grip portion 16 and handle support posts 17 fixed to both ends of the grip portion. The support posts 17 are connected to each other with reinforcing horizontal ties 18. Also, an adjuster 23 is attached to the lower tip of the support post 17. Furthermore, a back panel 19 and a front panel 20 are attached to the front and back of the support post 17 so as to sandwich it.

[0016] Variations of the invention and methods of use thereof First, Figures 1 to 3 show the configuration of the transport cart of the present invention when used as a flatbed truck. This configuration will be referred to as Configuration 1 hereafter. Configuration 1 requires a flat top to achieve the functionality of a flatbed truck. However, the transport cart 1 also carries components necessary for transformation into other configurations, which must be stored. Therefore, a front frame 3 and a rear frame 4 are fixed around the base plate 15, which has wheels 7 and 8 as its base, and openable side frames 5 connected by hinges 21. As shown in Figure 6, this surrounding frame is made to the same height as the stored internal components when stacked flat. Furthermore, the side frames 5 are shaped as shown in Figure 7 to provide a clearance for the top plate 10. This facilitates direct transfer of the load weight applied to the top plate to the base, reducing the strain on the internal components. The transport cart 1 of the present invention also comes with a push handle 2. The handle of a typical push dolly is fixed to the top of the base plate, but if the transport dolly of the present invention were to be fixed in the same way, the top plate would not be able to be kept flat as a flatbed dolly. Therefore, the push handle 2 is made detachable, and a rail-shaped handle storage section 9 is provided on the bottom surface of the base plate 15, and by storing the push handle 2, it is possible to keep the top plate flat. In this way, in form 1, the performance of a flatbed dolly is achieved.

[0017] Next, Figures 4 and 5 will be explained. These show the form when the transport cart of the present invention is used as a push cart, and hereinafter this form will be referred to as Form 2. In Form 2, the push handle 2 stored in the handle storage section 9 in Form 1 is removed and inserted into the handle fixing section 6 previously attached to the rear frame 4 to fix it. As shown in Figure 1, the handle fixing section 6 is designed to completely surround the cross-sectional shape of the tip ends of the two handle supports 17 of the push handle 2, and is deep enough so that the handle and the bottom of the handle fixing section 6 do not come into contact when the push handle 2 is stored. In this way, Form 2 achieves the performance of a push cart.

[0018] Next, Figures 6 to 9 and Figures 10 and 11 will be described. These show the transport cart of the present invention during and after transformation from Configuration 2 to achieve the performance of a two-stage cart. The shape shown in Figures 10 and 11, showing the transformed form, will be referred to as Configuration 3 hereafter. First, Figures 6 and 7 show the first step for transforming from Configuration 2 to Configuration 3, in which both side frames 5 secured by hinges 21 are opened in the direction of the arrows in Figure 7 . Next, Figures 8 and 9 show the second step. In the second step, the exposed sides of the top panels 10 and 11, which were opened in the first step by opening the side frames 5, are grasped and lifted in the direction of the arrows shown in Figures 8 and 9 . This causes the side panels 12 and 13 connected to the top panel 11 by the hinges 21 to rise in unison, and the stay hardware 22 also unfolds in unison. As a result of these actions, the side panels 12, 13, which are aligned vertically, and the horizontal top panel 11 are supported by the extended stay hardware 22 and stand independently. This results in modified form 3 shown in Figures 10 and 11, and the transport cart of the present invention has the performance of a two-stage cart.

[0019] 12 to 14, which show the configuration of the transport cart of the present invention when used as a three-tier cart. Hereinafter, this configuration will be referred to as Configuration 4. Configuration 4 is formed by attaching dedicated shelf brackets 26 to the movable shelf rails that were previously embedded in the freestanding side panels of Configuration 3, and then installing the middle panel 14 remaining on the top of the base plate 15 on the shelf brackets 26. In this way, Configuration 4 achieves the performance of a three-tier cart.

[0020] Next, referring to Figure 15, Figure 15 shows a configuration in which the transport cart of the present invention is used as a long work desk, and this configuration will be referred to as "Configuration 5" hereafter. Configuration 5 is achieved by grasping the top plate 10 from the state of Configuration 2 or Configuration 3 and rotating it in the direction of the arrow around the hinge 21 connected to the top plate 11. At the same time, the push handle 2 inserted into the handle fixing portion 6 is removed. The protrusion on the top end of the removed handle is then joined to the hole in the leg fixing portion 27 previously drilled in the top plate 10, resulting in the configuration shown in Figure 15. Furthermore, the adjuster 23 equipped on the push handle 2 used as a support leg makes it possible to keep the top plate level, thereby achieving the performance required for a long work desk in Configuration 5. [Explanation of symbols]

[0009] 1 Transport cart 2 Push handle 3 Front frame 4 Rear frame 5 side frame 6 Handle fixing part 7 wheels (fixed) 8 wheels (free) 9 Handle storage area 10 Top plate (upper) 11 Top plate (lower) 12 Side plate (top) 13 Side plate (bottom) 14 Middle plate 15 Baseplate 16 Handle grip 17 Handlebar support 18 Side-to-side jump 19 Back plate 20 Front panel 21 Hinge 22 Stay hardware 23 Adjuster 24 Top plate connection joint 25 Adjustable shelf rails 26 Shelf bracket 27 Leg fixing part

Claims

1. A transport cart having a base plate with wheels, a detachable push part for moving the base plate, and a liftable top plate, The outer peripheral surface and bottom surface of the base plate are provided with an insertion and fixing portion for the hand push portion, as well as a storage portion. In addition, the top plate provided on the top of the base plate is made of two pieces connected by a hinge and capable of rotating, and one of the two pieces of the top plate on the rotating side is processed so that it can be joined to the hand push section. Furthermore, between the base plate and the top plate, a device that enables the top plate to be raised and lowered, and side plates for supporting the top plate are provided. With the above structure, it has the performance of three types of transport carts: flatbed cart, hand cart, and two-stage cart. Furthermore, by unfolding the rotating section of the top plate and joining it to the push section for support, the cart also functions as a long work desk.

2. A transport cart as described in claim 1, which has a middle plate on the top of the base plate and shelf support rails and shelf support brackets for supporting the middle plate incorporated into the side panels, thereby also having the functionality of a three-stage cart.

3. 3. The transport cart according to claim 1, wherein the push section has a document storage section and a push handle incorporating a height adjustment device for supporting the top plate.

4. A transport cart as described in claims 1, 2 or 3, wherein the top plate, base plate, side panels and push portion are made of wood, resin, metal or a combination thereof depending on the purpose of use and the load weight, and reinforcement is provided at each joint as necessary.

5. 5. A transporting dolly according to claim 1, 2, 3 or 4, wherein the base plate is provided with an outer peripheral frame for the purpose of absorbing impact in the event of a collision and for storing the top plate, the side plates and the middle plate.

6. 6. A transport cart according to claim 1, 2, 3, 4 or 5, wherein when the tabletop is unfolded, both ends are provided with a connecting mechanism, so that when used as a long work desk, multiple identical transport carts can be connected to each other.

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