Cart system

Abstract

To provide a truck capable of conveying a long material at a low position and coping with an irregular ground or the like according to necessity such as a surrounding situation.SOLUTION: The truck includes a cargo frame 101 configured to be disassembled and a truck configured to be attached to and detached from the cargo frame 101, and the cargo frame 101 includes side frames 102 arranged on the right and left sides and a connection frame 110 connecting the back sides of the side frames 102. The truck includes at least two types of trucks, that is, a low-floor type truck 120 configured such that the height of a floor plate 121 is smaller (lower) than the diameter of wheels 124 and 126 provided in the truck itself, and a high-floor type truck 140 including wheels 144 and 146 having a larger diameter than the wheels 124 and 126 provided in the low-floor type truck 120 and having the floor plate 141 set at a position higher than the height of the floor plate 121 of the low-floor type truck 120, and can be assembled with a cargo frame 101 by selecting either the low-floor type truck 120 or the high-floor type truck 140 according to a use place, a surrounding situation, or the like.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a cart, and more particularly to a cart for transporting construction materials such as temporary construction materials. [Background technology]

[0002] Conventionally, various types of carts have been used to transport construction materials such as temporary materials. These include flatbed trucks, which are simply flatbed trucks with casters attached to the bottom of a board, handle-equipped carts, which have a handle attached to the board, and even box carts or basket carts, which have a box- or basket-like top part of the flatbed truck (see Non-Patent Document 1). [Prior art documents] [Non-patent literature]

[0003] [Non-Patent Document 1] Daisha Shop Ebisu is a specialty store for purchasing dollies. A must-see for the construction industry! Types of dollies useful for transporting construction materials. https: / / www.daisha.shop / html / page8.html Summary of the Invention [Problem to be solved by the invention]

[0004] In the case of construction materials such as temporary construction materials, they are often long, so transporting them lying down on a flatbed or handle-equipped cart requires a large transport space, making it very difficult to use. If you try to transport long objects upright on these carts, you will need to hold the long objects so that they do not fall over, which is not easy and can even be dangerous.

[0005] To solve these problems, box carts and basket carts can be used to transport long objects upright, which can solve the problems mentioned above, but existing box carts and basket carts are only designed for transport on flat, paved surfaces, and are not necessarily suitable for transporting on uneven ground or at construction sites where rubble, materials, garbage, etc. are likely to be scattered on the floor. On the other hand, while this can be solved to some extent by taking measures such as increasing the size of the wheels of the cart, this inevitably raises the bottom of the cart, which means that long objects must always be transported at a high position, which limits the places where they can be transported.

[0006] The present invention has been made to solve these problems, and its objective is to provide a trolley system that can transport long materials at a low position and can also handle uneven ground as needed depending on the surrounding conditions. [Means for solving the problem]

[0007] In order to solve the above problems, the present invention comprises a cargo frame that is configured to be disassembled, and a trolley that is configured to be attachable and detachable to the cargo frame, the cargo frame having side frames arranged on the left and right sides, and a connecting frame that connects the back sides of the side frames, and the trolley comprises at least two types: a low-floor trolley that is configured so that the height of the floor board is smaller (lower) than the diameter of the wheels equipped on the trolley itself, and a high-floor trolley that has wheels with a larger diameter than the wheels equipped on the low-floor trolley and has a floor board set at a higher position than the height of the floor board of the low-floor trolley, and is characterized in that either the low-floor trolley or the high-floor trolley can be selected and assembled with the cargo frame depending on the location of use and surrounding conditions, etc.

[0008] This configuration makes it possible to provide a trolley system that can transport long materials at a low position and can also handle uneven ground as needed depending on the surrounding conditions.

[0009] The wheels of the low-floor truck are also characterized in that they are positioned inward in the width direction (left and right direction) from the position of the side frame.

[0010] By configuring in this way, it is possible to cope with situations where the width of the transport location is limited (for example, elevators, etc.) with ease.

[0011] The side frame is also composed of three horizontal frames (the first horizontal frame, second horizontal frame, and third horizontal frame, in order from tallest to tallest) arranged approximately horizontally along the front-to-back direction, a front-side vertical frame connecting the front ends (front) of the three horizontal frames, and a rear-side vertical frame connecting the rear ends (rear) of the three horizontal frames, and the front-side vertical frame connects only the second and third horizontal frames, while the rear-side vertical frame connects all three horizontal frames.

[0012] This configuration makes it easier to load and unload materials into the frame. In short, workers load and unload materials by accessing the front side of the frame, but because the front vertical frame is only located on the lower level (specifically, below the second horizontal member located in the middle level), it is easier for workers to move their arms around when working.

[0013] The connecting frame is also characterized in that it connects only the upper rear side of the side frame, and is offset so as to be positioned further rearward than the rear side vertical frame of the side frame.

[0014] This configuration reduces the possibility of the long material tipping over toward the front when loading or unloading the long material. [Effects of the Invention]

[0015] By applying the present invention, it is possible to provide a trolley system that can transport long materials at a low position and can also handle uneven ground as needed depending on the surrounding conditions. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is an overall exploded assembly view of a bogie system according to an embodiment of the present invention; [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. 10 is a perspective view of the cargo frame assembled to the low-floor truck. [Figure 5] 1(a) is a side view of the cargo frame attached to the low-floor truck, and FIG. 1(b) is a front view of the same. [Figure 6] FIG. 10 is a perspective view of the frame assembled to the high-floor truck. [Figure 7] 1(a) is a side view of the cargo frame attached to the high-floor truck, and FIG. 1(b) is a front view of the same. DETAILED DESCRIPTION OF THE INVENTION

[0017] Below, a description will be given of a cart system 100, which is an example of an embodiment of the present invention, with reference to the accompanying drawings. Note that in order to make the drawings easier to understand, the size and dimensions of each part are exaggerated and may not necessarily match the actual product. Furthermore, each drawing should be viewed in accordance with the direction of the symbols, and the top, bottom, left, right, front, and back are expressed based on these directions.

[0018] <Truck system configuration> As shown in FIG. 1, a cart system 100 shown as an example of an embodiment of the present invention is composed of a cargo frame 101 that is configured to be disassembled, and a cart that is configured to be attachable and detachable to the cargo frame 101.

[0019] The loading frame 101 is composed of side frames 102 arranged on the left and right, and a connecting frame 110 that connects the back sides of the side frames 102. The left and right side frames 102 use the same parts, and the frame can be replaced with the left and right frames.

[0020] As shown in Figures 2 and 3, the side frame 102 is configured to include three horizontal frames (in order from highest to lowest, the first horizontal frame 105, the second horizontal frame 104, and the third horizontal frame 103) arranged approximately horizontally along the fore-and-aft direction (the fore-and-aft direction of the bogie), a front-side vertical frame 106 connecting the front ends (front) of the three horizontal frames, and a rear-side vertical frame 107 connecting the rear ends (rear) of the three horizontal frames. Furthermore, the front-side vertical frame 106 connects only the second horizontal frame 104 and the third horizontal frame 103, while the rear-side vertical frame 107 connects all three horizontal frames (the first horizontal frame 105, the second horizontal frame 104, and the third horizontal frame 103). In other words, there is no vertical frame at the front upper part of the side frame 102.

[0021] Two cylindrical engaging parts 109 with holes drilled in the vertical direction are provided at different heights and slightly spaced apart above and below on the upper back side of the side frame 102. A handle part 108 is provided between these two engaging parts 109.

[0022] Furthermore, a plurality of hook holes 105a are provided on the left and right sides of the first horizontal frame 105 for hooking the hooks of the hook-equipped rubber belt 200 (see FIG. 5) for fastening materials. Similarly, a plurality of hook holes 104a are provided on the left and right sides of the second horizontal frame 104 for hooking the hooks of the hook-equipped rubber belt 200 (see FIG. 5) for fastening materials.

[0023] The connecting frame 110 is configured in a shape similar to the Roman numeral "2 (II)" with only the vertical frame of a square frame slid inward and fixed in place. The upper and lower horizontal frames each have downward-facing protrusions 111 and 112 formed on both ends. The protrusions 111 and 112 are sized to fit into the engagement portion 109 formed on the upper rear side of the side frame 102.

[0024] The two side frames 102 are erected so that their lower ends are inserted into insertion portions 122, 142 of carriages (low-floor carriage 120 and high-floor carriage 140) described below, and then connected by inserting protrusions 111, 112 of connecting frame 110 into engagement portions 109 provided on the upper back sides of the side frames 102. Since engagement portion 109 is attached to the outside (closer to the back) of rear-side vertical frame 107 of side frames 102, as a result, connecting frame 110 connecting the two side frames 102 is positioned offset outside (closer to the back) of rear-side vertical frame 107 of side frames 102 (see FIG. 3).

[0025] The bogie system 100 according to the present invention is provided with two types of bogies (a low-floor bogie 120 and a high-floor bogie 140). Both types have floor plates 121, 141 of the same size, and have in common the fact that the floor plates 121, 141 are provided with insertion portions 122, 142 at the four corners thereof into which the lower ends of the side frames 102 are inserted.

[0026] In addition, the low-floor cart 120 is configured so that the height of the floor plate 121 is smaller (lower) than the diameter of its wheels 124, 126. Furthermore, the wheels 124, 126 of the low-floor cart 120 are set so that they are located inward in the width direction (left-right direction) from the position of the side frame 102 (in other words, the position of the insertion portion 122) when viewed from the front (see FIG. 5(b)).

[0027] The high-floor vehicle 140 is equipped with wheels having a larger diameter than the wheels 124, 126 equipped on the low-floor vehicle 120 described above. In particular, the front wheels 144 are intentionally made large in diameter, allowing the vehicle to easily overcome and transport uneven ground or situations where rubble, materials, garbage, etc. are scattered on the floor surface. Furthermore, the height of the floor plate 141 of the high-floor vehicle 140 is set to a position higher than the height of the floor plate 121 of the low-floor vehicle 120 (H2>H4). As a result, when the loading frame 101 is attached to the high-floor vehicle 140, the height of the top of the loading frame 101 is higher than when the loading frame 101 is attached to the low-floor vehicle 120 (H1>H3).

[0028] It should be noted that the width W of the cargo frame 101 is the same whether the cargo frame 101 is attached to the low-floor carriage 120 or the high-floor carriage 140.

[0029] <Actions and Functions of the Cart System> The use of the trolley system 100 is extremely simple. Depending on the length and location of the material to be transported, it is decided whether to use the low-floor trolley 120 or the high-floor trolley 140. Then, the trolley is ready to use simply by erecting two side frames 102 on the selected trolley and connecting the two side frames 102 with the connecting frame 110.

[0030] In the case of long materials 300, they are loaded from the front side, and as shown in Figure 5(a), the long materials 300 are leaned against the connecting frame 110 and stacked. Once loading is complete, the long materials 300 are secured in place using the included rubber bands with hooks 200 to prevent them from falling over. After that, the materials can be transported to their destination and unloaded by following the reverse procedure.

[0031] As explained in the above configuration, the trolley system 100 of the present invention comprises a cargo frame 101 that is configured to be disassembled, and a trolley that is configured to be attachable and detachable to the cargo frame 101. The cargo frame 101 comprises side frames 102 arranged on the left and right, and a connecting frame 110 that connects the back sides of the side frames 102. The trolley comprises at least two types: a low-floor trolley 120 that is configured so that the height of the floor plate 121 is smaller (lower) than the diameter of the wheels 124, 126 provided on the low-floor trolley 120, and a high-floor trolley 140 that has wheels 144, 146 with larger diameters than the wheels 124, 126 provided on the low-floor trolley 120 and a floor plate 141 that is set at a higher position than the height of the floor plate 121 of the low-floor trolley 120.The trolley system is characterized in that either the low-floor trolley 120 or the high-floor trolley 140 can be selected and assembled with the cargo frame 101 depending on the location of use and surrounding conditions, etc.

[0032] This configuration makes it possible to transport long materials at a low position using the low-floor trolley 120, and also to provide a trolley system that can handle uneven ground by using the high-floor trolley 140 as required by the surrounding conditions.

[0033] Also, the wheels 124, 126 of the low-floor truck 120 are characterized in that they are positioned inward in the width direction (left and right direction) from the position of the side frame 102.

[0034] By configuring in this way, it is possible to cope with situations where the width of the transport location is limited (for example, elevators, etc.) with ease.

[0035] In addition, the side frame 102 is composed of three horizontal frames (from tallest to shortest: the first horizontal frame 105, the second horizontal frame 104, and the third horizontal frame 103) arranged approximately horizontally along the front-to-back direction, a front-side vertical frame 106 connecting the front ends (front) of the three horizontal frames, and a back-side vertical frame 107 connecting the rear ends (back) of the three horizontal frames, and is characterized in that the front-side vertical frame 106 connects only the second horizontal frame 104 and the third horizontal frame 103, while the back-side vertical frame 107 connects all three horizontal frames (the first horizontal frame 105, the second horizontal frame 104, and the third horizontal frame 103).

[0036] This configuration makes it easier to load and unload materials into and from the loading frame 101. In short, workers load and unload materials by accessing the front side of the loading frame 101, but because the front vertical frame 106 is located only on the lower level (specifically, below the second horizontal member 104 located in the middle level), workers can easily move their arms around when working.

[0037] In addition, the connecting frame 110 is characterized by connecting only the upper part of the rear side of the side frame 102, and being offset so as to be positioned further rearward than the rear side vertical frame 107 of the side frame 102.

[0038] This configuration reduces the possibility that the long material 300 will tip over to the front when loading or unloading the long material 300. [Explanation of symbols]

[0039] 100···Cart System 101... Cargo frame 102 Side frame 103 Third horizontal frame 104 Second horizontal frame 104a···Hook hole 105 First horizontal frame 105a···Hook hole 106 Front vertical frame 107 Rear vertical frame 108···Handle 109 Engagement part 110···Connecting frame 111, 112...Engaging protrusion 120···Low-floor trolley 121...Top surface of floorboard 122 Insertion part 124···Front wheel 126···rear wheel 140···High-floor trolley 141...Top surface of floorboard 142 Insertion part 144···Front wheel 146···Rear wheel 200···Rubber band with hook 300···Materials

Claims

1. A cargo frame configured to be disassembled; A dolly configured to be detachable from the loading frame, The loading frame has side frames arranged on the left and right sides and a connecting frame connecting the back sides of the side frames, The bogies include at least two types: a low-floor bogie configured so that the height of the floor plate is smaller (lower) than the diameter of the wheels provided thereon; and a high-floor bogie equipped with wheels having a larger diameter than the wheels provided on the low-floor bogie and having a floor plate set at a position higher than the height of the floor plate of the low-floor bogie, Depending on the location of use and surrounding conditions, either the low-floor trolley or the high-floor trolley can be selected and assembled with the loading frame. A bogie system characterized by:

2. In claim 1, The wheels of the low-floor vehicle are set to be located inside the position of the side frame in the width direction (left and right direction). A bogie system characterized by:

3. In claim 1 or 2, The side frame is configured to include three horizontal frames (in order from highest to lowest, a first horizontal frame, a second horizontal frame, and a third horizontal frame) arranged substantially horizontally along the front-to-rear direction, a front-side vertical frame connecting the front ends (front faces) of the three horizontal frames, and a rear-side vertical frame connecting the rear ends (rear faces) of the three horizontal frames, the front vertical frame connects only the second horizontal frame and the third horizontal frame, The rear vertical frame connects all three horizontal frames. A bogie system characterized by:

4. In claim 3, The connecting frame connects only the upper rear portions of the side frames, and is offset so as to be positioned further rearward than the rear-side vertical frame of the side frames. A bogie system characterized by:

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