Block conveying and installation device
The block transport and installation device addresses the issue of wheel fall by using a dual wheel configuration that rests on adjacent blocks, enabling stable movement and improved block connection.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2026-03-10
AI Technical Summary
The existing block transport and installation devices face issues with wheels getting stuck or falling into the spaces between blocks, making it difficult to move the blocks, especially when the spaces are wide, which affects the connecting and bonding strength of the blocks.
The device is equipped with a second wheel configuration behind and in front of the primary wheels to ensure they rest on the top surface of adjacent blocks when crossing the spaces, maintaining a specific axle distance relative to the space width to prevent wheel fall and facilitate smooth movement.
The solution allows the device to travel easily over the block row, enhancing the connecting and bonding strength between blocks by preventing wheel fall and ensuring stable movement.
Smart Images
Figure 2026040884000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a block lifting, transporting and installation device. [Background technology]
[0002] The block transport and installation device is provided with a block lifting and lowering device on a carriage. The carriage has front and rear wheels. The blocks are made of reinforced concrete in the shape of flat plates. Typical examples are deck slabs and slabs. A large number of reinforced concrete blocks, like deck slabs, are laid out in a line to form a row. Between the blocks in a row, spaces are formed to connect the blocks. On the top surface of the row of blocks, spaces are opened in parallel at regular intervals. The block transport and installation device travels over the row of blocks. As it travels, it passes over the intervening spaces one by one. It moves forward with the blocks lifted and sets them down at the installation position at the front of the row of blocks. It then moves backward empty and returns to the block receiving position. This forward and backward movement is repeated to lay out the blocks. In the space between the blocks, rebars protruding from the rear end of the front block and rebars protruding from the front end of the rear block are lined up. After the blocks are laid, concrete is filled in and the rebars are embedded in the concrete. Once the concrete hardens, the front and rear blocks are connected. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Patent Application No. 2023-172532 Summary of the Invention [Problem to be solved by the invention]
[0004] [assignment] When constructing a row of blocks in the manner described above, the connecting and bonding strength of the front and rear blocks will be stronger if the front-to-back width of the intervening space is wide and if the rebar in the intervening space is long. However, if the front-to-rear width of the intervening space on the top surface of the block row becomes wide, the front or rear wheels of the conveying and installation device may get stuck in the intervening space and fall when moving on the top surface of the block row, making it difficult to move.
[0005] [Concept] The transport and installation device has a second front wheel behind the front wheel to prevent the front wheels from falling into the filling space. When moving forward, when the first front wheel reaches the top of the filling space, the second front wheel rests on the top surface of the block, preventing the first front wheel from falling. When the second front wheel reaches the top of the filling space, the first front wheel rests on the top surface of the block, preventing the second front wheel from falling. When moving backward, when the second front wheel reaches the top of the filling space, the first front wheel rests on the top surface of the block, preventing the second front wheel from falling. When the first front wheel reaches the top of the filling space, the second front wheel rests on the top surface of the block, preventing the first front wheel from falling. The first and second front wheels are configured to rest on the rear end of the top surface of the front block and the front end of the top surface of the rear block when they cross the space between the wheels. In other words, the distance between the wheels is the same as or slightly longer than the front-to-rear width of the space between the wheels.
[0006] Similarly, for the rear wheels, a second rear wheel is provided in front of the rear wheel to prevent the rear wheel from falling into the space between the blocks. When one of the first and second rear wheels reaches the top of the space between the blocks, the other rear wheel rests on the top surface of the block, preventing the other rear wheel from falling. In other words, the first and second rear wheels are configured so that when they cross the space between the blocks, they rest on the rear end of the top surface of the front block and the front end of the top surface of the rear block. In other words, the axle distance between the first and second rear wheels is the same as or slightly longer than the front-to-rear width of the space between the blocks. [Means for solving the problem]
[0007] 1. A block conveying and installing device equipped with a device for lifting and lowering blocks and equipped with front and rear wheels, The blocks are laid out in rows, The rows of blocks form spaces between the blocks in front and behind, The intervening space opens onto the top surface of the block row, The upper surface of the row of blocks is used as a running path for the conveying and setting device. A second front wheel is provided behind the front wheel, and the first front wheel and the second front wheel are configured to rest on the rear end of the upper surface of the front block and the front end of the upper surface of the rear block when crossing the filling space, The block conveying and installation device is also characterized in that a second rear wheel is provided in front of the rear wheel, and the first rear wheel and the second rear wheel are configured to rest on the rear end of the top surface of the front block and the front end of the top surface of the rear block when crossing the filling space. 2. In the block conveying and installing device of 1 above, The distance between the first and second front wheels must be equal to or greater than the front-to-rear width of the space between the wheels, but not greater than 1.5 times. The first rear wheel and the second rear wheel have a distance between their axes that is equal to or greater than the front-to-rear width of the space between them, but not greater than 1.5 times that. 3. In the block conveying and installing device of 1 or 2 above, The first and second front wheels are drive wheels, A feature of this vehicle is that the first and second rear wheels are drive wheels. 4. In the block conveying and installing device of 1 or 2 above, The blocks are characterized by being flat plates made of reinforced concrete. 5. In the block conveying and installing device of 4 above, The filler space is characterized by a row of reinforcing bars protruding from the rear end of the front block and a row of reinforcing bars protruding from the front end of the rear block. 6. In the block conveying and installing device of 5 above, The space between the blocks is filled with concrete, reinforcing bars are embedded in the concrete, and when the concrete hardens, the front and rear blocks are connected. [Effects of the Invention]
[0008] The block transport and installation device can easily travel on the top surface of the block row. Also, the block row can strengthen the connecting and bonding force between the front and rear blocks. [Brief explanation of the drawings]
[0009] [Figure 1] 1 is a side view of a block conveying and installing device according to a first embodiment of the present invention during conveyance. [Figure 2] FIG. 10 is a plan view of the row of blocks during transport by the block transport and installation device. [Figure 3] FIG. 10 is a side view showing the block transport and installation device with the upper part omitted, illustrating the positional relationship between the first and second front wheels and the intervening space. [Figure 4] 3, and is a side view showing another positional relationship between the first and second front wheels and the intervening space. [Figure 5] FIG. 10 is a side view similar to FIG. 3 showing the block conveying and installation device of the second example, illustrating the positional relationship between the first and second front wheels and the intervening space. [Figure 6] 5, and is a side view showing another positional relationship between the first and second front wheels and the intervening space. DETAILED DESCRIPTION OF THE INVENTION
[0010] [Example 1 (see Figures 1 to 4)] As shown in Figure 1, the block transport and installation device of this example has a block lifting and elevating device 2 mounted on a cart 1. The cart 1 has first and second front wheels 3 and 4 and first and second rear wheels 5 and 6 on the front, rear, left and right. The second front wheel 4 is located behind the first front wheel 3, and the second rear wheel 6 is located in front of the first rear wheel 5. These eight wheels 3 to 6 are drive wheels. Behind the block lifting and elevating device 2 of the cart 1, a machine room 7 containing a power source and control equipment is installed, and a control panel 8 is attached to the rear of the machine room 7.
[0011] A large number of blocks 11 are laid out in a line in succession. As shown in Figures 1 and 2, the block row 12 has long, narrow packing spaces 13 formed in the left-right direction between the front and rear blocks 11. The packing spaces 13 are parallel to each other in the front-rear direction and open to the top surface of the block row 12. The top surface of the block row 12 serves as a travel path along which the conveying and installation devices 1 to 8 move forward and backward.
[0012] In the conveying and installation devices 1 to 8, the axle distance d between the first front wheel 3 and the second front wheel 4 is 1.5 times the front-to-rear width w of the packing space 13. The axle distance d between the first rear wheel 5 and the second rear wheel 6 is also 1.5 times the front-to-rear width w of the packing space 13. The first and second front wheels 3, 4 and the first and second rear wheels 5, 6 have the same diameter and are similarly structured.
[0013] As the conveying and installing devices 1-8 advance along the top surface of the row of blocks 12, as shown in FIG. 3, when the first front wheel 3 leaves the top surface of the block 11 and reaches above the packing space 13, the second front wheel 4 rests on the top surface of the block 11, preventing the first front wheel 3 from falling into the packing space 13. As shown in FIG. 1, the first front wheel 3 and the second front wheel 4 rest on the rear end of the top surface of the front block 11 and the front end of the top surface of the rear block 11 when they cross the packing space 13. Also, as shown in FIG. 4, when the second front wheel 4 leaves the top surface of the block 11 and reaches above the packing space 13, the first front wheel 3 rests on the top surface of the block 11, preventing the second front wheel 4 from falling into the packing space 13. The same applies to the first rear wheel 5 and the second rear wheel 6. When one of the first rear wheel 5 and the second rear wheel 6 reaches the top of the packing space 13, the other rear wheel rests on the upper surface of the block 11, preventing the other rear wheel from falling. When the first rear wheel 5 and the second rear wheel 6 straddle the packing space 13, they rest on the rear end of the upper surface of the front block 11 and the front end of the upper surface of the rear block 11.
[0014] The same applies when the conveying and installing devices 1-8 move backward on the top surface of the block row 12 as when they move forward. When one of the first or second rear wheels reaches above the filling space 13, the other rear wheel rests on the top surface of the block 11, preventing one rear wheel from falling. When one of the first or second front wheels reaches above the filling space 13, the other front wheel rests on the top surface of the block 11, preventing one front wheel from falling.
[0015] When the conveying and installing devices 1 to 8 pass over the space 13 while moving forward or backward, the first front wheel 3, the second front wheel 4, the first rear wheel 5, and the second rear wheel 6 do not fall into the space 13. They can easily run on the top surface of the block row 12.
[0016] The blocks 11 are flat plates of reinforced concrete. In this embodiment, they are deck slabs. The deck slab blocks 11 have connecting structures at their front and rear ends. The connecting structure at the front end cuts out a corner between the top surface and the front end surface of the block 11 to form a recess 14, and a U-shaped reinforcing bar 15 protruding into the recess 14 protrudes in front of the recess 14. Similarly, the connecting structure at the rear end cuts out a corner between the top surface and the rear end surface of the block 11 to form a recess 14, and the U-shaped reinforcing bar 15 protruding into the recess 14 protrudes behind the recess 14. When the blocks 11 are laid out, the recess 14 at the rear end of the front block 11 and the recess 14 at the front end of the rear block 11 are connected to form a filler space 13. In the filler space 13, the reinforcing bar 15 protruding from the rear end of the front block 11 and the reinforcing bar 15 protruding from the front end of the rear block 11 are arranged in parallel. During the connection work, concrete is filled into the interspace 13 and reinforcing bars 15 are embedded in the concrete. When the concrete hardens, the front and rear blocks 11 are connected.
[0017] [Second example (see Figures 5 and 6)] In this example, the axis distance with respect to the filling space is changed in the block conveying and installing device of the first example. The first front wheel 3 and the second front wheel 4 have an axle distance d that is the same as the front-to-rear width w of the space 13. The first rear wheel 5 and the second rear wheel 6 also have an axle distance d that is the same as the front-to-rear width w of the space 13.
[0018] As shown in Figure 5, when the first front wheel 3 leaves the top surface of the block 11 and reaches above the filling space 13, the second front wheel 4 rests on the top surface of the block 11 to prevent the first front wheel 3 from falling into the filling space 13. As shown in Figure 6, the first front wheel 3 and the second front wheel 4 rest on the rear end of the top surface of the front block 11 and the front end of the top surface of the rear block 11 when they straddle the filling space 13.
[0019] The same applies to the first and second rear wheels. When one rear wheel reaches the top of the space between the blocks, the other rear wheel rests on the top surface of the block, preventing the other rear wheel from falling. When the first and second rear wheels cross the space between the blocks, they rest on the rear end of the top surface of the front block and the front end of the top surface of the rear block.
[0020] The conveying and installing device passes over the filling space 13 while traveling on the top surface of the block row 12, and none of the first front wheel 3, second front wheel 4, first rear wheel, and second rear wheel falls into the filling space 13. It is easy to travel on the top surface of the block row 12.
[0021] Other points are the same as in Example 1. In the drawings, parts that are the same as in Example 1 are given the same reference numerals as in Example 1.
[0022] [Variations] The present invention is not limited to the above-described embodiment, and the following modifications are possible. 1. In the above embodiment, the block lifting and lowering device 2 moves the block 11 up and down in an arc-like manner, but this is changed to a linear path. 2. In the above embodiment, all eight wheels, namely the first and second front wheels 3, 4 and the first and second rear wheels 5, 6, are drive wheels, but six or four wheels may be drive wheels. [Explanation of symbols]
[0023] 1~8 Block conveying and installation device 1 cart 2 Block lifting device 3 First front wheel 4 Second front wheel 5 1st rear wheel 6 2nd rear wheel 7 Machine room 8 Control Panel 11 blocks 12 Block Row 13 Filled space 14 Recess 15 Reinforced concrete d Center distance w Front-to-back width of the space
Claims
1. A block conveying and installing device is provided with a device for lifting and lowering blocks, and is equipped with front and rear wheels, The blocks are laid out in rows, The rows of blocks form spaces between the blocks in front and behind, The intervening space opens onto the top surface of the block row, The upper surface of the row of blocks is used as a running path for the conveying and setting device. A second front wheel is provided behind the front wheel, and the first front wheel and the second front wheel are configured to rest on the rear end of the upper surface of the front block and the front end of the upper surface of the rear block when crossing the intervening space, The block conveying and installation device is also characterized in that a second rear wheel is provided in front of the rear wheel, and the first rear wheel and the second rear wheel are configured to rest on the rear end of the top surface of the front block and the front end of the top surface of the rear block when crossing the filling space.
2. The distance between the first and second front wheels must be equal to or greater than the front-to-rear width of the space between the wheels, but not greater than 1.5 times.
2. The block conveying and installing device according to claim 1, wherein the distance between the axes of the first rear wheel and the second rear wheel is equal to or greater than the front-to-rear width of the filling space and is not greater than 1.5 times the width.
3. The first and second front wheels are drive wheels, 3. The block conveying and installing device according to claim 1, wherein the first rear wheel and the second rear wheel are driving wheels.
4. 3. The block conveying and installing device according to claim 1, wherein the blocks are in the form of flat plates made of reinforced concrete.
5. 5. The block conveying and installing device according to claim 4, wherein reinforcing bars protruding from the rear end of the front block and reinforcing bars protruding from the front end of the rear block are aligned in the filling space.
6. 6. The block conveying and installing device according to claim 5, wherein the filling space is filled with concrete, reinforcing bars are embedded in the concrete, and when the concrete hardens, the front and rear blocks are connected together.
Citation Information
Patent Citations
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