Cargo bed device

Abstract

To increase safety when lifting and lowering construction materials and reduce the effort required for lifting and lowering work, thereby saving labor.SOLUTION: A cargo bed device 1, which can be installed on a lifting device 50 used when hoisting construction materials 5 to high places, comprises a base section 2 attached to the lifting device 50, a slide section 3 arranged on the base section 2 so as to be slidable horizontally relative to the base section 2 and capable of loading construction materials 5, and a locking mechanism 31 which can be remotely controlled to lock and unlock the construction materials loaded on the slide section 3.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a loading platform device that can be installed on a lifting device used when hoisting construction materials to high places. [Background technology]

[0002] BACKGROUND ART Conventionally, when performing work to hoist construction materials such as equipment, piping materials, and ducts to high places, electric or gas cylinder type lifting devices (upper) have been used. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 6-211495 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the conventional lifting device described above, when hoisting construction materials such as piping materials to high places, round objects such as piping materials are unstable, and there is a risk that the piping materials may roll and fall from the lifting device, or that the lifting device may tip over due to an imbalance in the weight of the loaded piping materials.

[0005] Furthermore, if misalignment occurs during the connection of piping materials, etc., it is necessary to raise and lower the piping materials, etc. multiple times to fine-tune the installation position of the piping materials, which increases the work's time and effort.

[0006] The present invention has been made to solve the above-mentioned problems, and aims to provide a loading platform device that increases safety when hoisting construction materials and reduces the effort required for hoisting work, thereby saving labor. [Means for solving the problem]

[0007] In order to achieve the above-mentioned object, the present invention is a loading platform device that can be installed on a lifting device used when hoisting construction materials to high places, and is characterized by comprising: a base portion that is attached to the lifting device; a slide portion that is arranged on the base portion and can slide horizontally relative to the base portion, and can load the construction materials; and a locking mechanism that can be remotely controlled to lock and unlock the construction materials loaded on the slide portion.

[0008] In the loading platform device of the present invention, it is preferable to provide a ball bearing that enables the sliding section to slide horizontally, a slide regulating section that regulates the horizontal sliding length of the sliding section, a slide locking section that disables the sliding section from sliding, and a lift-up prevention section that prevents the sliding section from lifting up relative to the base section.

[0009] In the loading platform device of the present invention, it is preferable that the locking mechanism comprises a winding unit that can electrically wind up the belt that is wrapped around the building material, a locking unit that can be manually stretched from the winding unit and engage with the tip of the belt that is wrapped around the building material, and a control unit that enables remote control of each of the operations of fixing and unlocking the belt to the winding unit and fixing and unlocking the tip of the belt to the locking unit.

[0010] In the loading platform device of the present invention, it is preferable that when the tip of the belt is fixed to the locking portion, the locking portion is held in a horizontal position, and when the tip of the belt is released from the locking portion, the locking portion is held in a position rotated 60 degrees upward from the horizontal position.

[0011] In the loading platform device of the present invention, the building materials are long objects including piping materials and duct materials for building facilities, and it is preferable that the slide portion has protruding guide portions at predetermined intervals along a direction perpendicular to the longitudinal direction of the long object to prevent the long object from rolling, and that protrusions are provided around the base portion to prevent the long object from falling. [Effects of the Invention]

[0012] According to the present invention, various excellent effects can be obtained, such as reducing the labor required for hoisting construction materials and improving safety. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a plan view showing a state in which piping material is loaded on a loading platform device according to an embodiment of the present invention; [Figure 2] 2 is a plan view showing a base portion of the carrier device according to the embodiment of the present invention. FIG. [Figure 3] 1A, 1B, and 1C show a slide portion of a carrier device according to an embodiment of the present invention, in which FIG. 1A is a plan view, FIG. 1B is a front side view, and FIG. 1C is a right side view. [Figure 4] 3 is a plan view showing the inside of a slide portion of a loading platform of the loading platform device according to the embodiment of the present invention. FIG. [Figure 5] 3 is a cross-sectional view showing the inside of a slide portion of a loading platform of the loading platform device according to the embodiment of the present invention. FIG. [Figure 6] 1 is a schematic cross-sectional view showing the interior of a loading platform of a loading platform device according to an embodiment of the present invention; [Figure 7] 4 is a cross-sectional view showing a locking mechanism of the cargo bed device according to the embodiment of the present invention. FIG. [Figure 8] 1A and 1B show a locking mechanism when fixed in a loading platform device according to an embodiment of the present invention, where FIG. 1A is a plan view and FIG. 1B is a cross-sectional view. [Figure 9] 1A and 1B show a locking mechanism when released from the loading platform device according to the embodiment of the present invention, in which FIG. 1A is a plan view and FIG. 1B is a cross-sectional view. [Figure 10] 1 is an elevation view showing a lifting device to which a loading platform device according to an embodiment of the present invention is attached; DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Here, Fig. 1 is a plan view showing a state in which piping material is loaded on a loading platform device according to an embodiment of the present invention. Fig. 2 is a plan view showing a base portion of the loading platform device according to an embodiment of the present invention. Fig. 3 is a slide portion of the loading platform device according to an embodiment of the present invention, (a) is a plan view, (b) is a front side view, and (c) is a right side view. Fig. 4 is a plan view showing the platform of the loading platform device according to an embodiment of the present invention. Fig. 5 is a cross-sectional view showing the interior of the platform of the loading platform device according to an embodiment of the present invention. Fig. 6 is a schematic cross-sectional view showing the interior of the platform of the loading platform device according to an embodiment of the present invention. Fig. 7 is a cross-sectional view showing a locking mechanism of the loading platform device according to an embodiment of the present invention. Fig. 8 shows the locking mechanism of the loading platform device according to an embodiment of the present invention when locked, (a) is a plan view, (b) is a cross-sectional view. Fig. 9 shows the locking mechanism of the loading platform device according to an embodiment of the present invention when unlocked, (a) is a plan view, (b) is a cross-sectional view. Fig. 10 is an elevation view of a lifting device equipped with a loading platform device according to an embodiment of the present invention. The following description will be given by way of example of a case in which piping material is loaded on a loading platform device.

[0015] As shown in Fig. 1, a loading platform device 1 according to an embodiment of the present invention includes a loading platform 4 having a base portion 2 and a slide portion 3 provided on the base portion 2, and piping material 5 is mounted on the slide portion 3 of the loading platform 4. The loading platform device 1 can also be attached to a lifting device 50 as shown in Fig. 10, and various types of existing aerial work platforms can be used as the lifting device 50.

[0016] 2, the base 2 has a rectangular shape in plan view, and a flat box shape that is open at the top. A ball bearing unit 8 formed by attaching a large number of ball bearings 7 (16 in the figure) in a left-right row at predetermined intervals is fixed to the bottom surface 6 of the base 2 in four rows at predetermined intervals from front to back.

[0017] A plurality of rod-shaped protrusions 10 (eight in total in the figure) are provided in an upright position on the front, rear, left and right side plates 9 of the base part 2. These protrusions 10 have the function of preventing the piping material 5 mounted on the slide part 3 of the loading platform 4 from falling off the loading platform 4 by maintaining an upright position. When it is not necessary to perform the function of preventing the piping material 5 from falling off, the protrusions 10 can be tilted down so as to fit along the outer surfaces of the front, rear, left and right side plates 9 and maintained in a horizontal position.

[0018] 1 and 3(a), the sliding section 3 has a rectangular shape slightly smaller than the base section 2 in plan view, and a flattened box shape so that a predetermined gap is formed between the sliding section 3 and the front, rear, left, and right side plates 9 of the base section 2. In this embodiment, the sliding section 3 is placed on the ball bearings 7 so that a space of 50 mm is formed between the sliding section 3 and the front, rear, left, and right side plates 9 of the base section 2. This allows the sliding section 3 to slide 50 mm in the front, rear, left, and right directions horizontally relative to the base section 2, and the front, rear, left, and right side plates 9 of the base section 2 function as slide restricting sections that restrict the sliding length of the sliding section 3 in the front, rear, left, and right directions.

[0019] As clearly shown in Figure 3, five guide sections 12 are provided on the top plate 11 of the sliding section 3 in five rows at predetermined intervals in a direction perpendicular to the longitudinal direction. As a result, a placement space 30 for four piping materials 5 is formed between each guide section 12 on the top plate 11 of the sliding section 3, and these guide sections 12 have the function of preventing the piping materials 5 from rolling. Also, as shown in Figure 3(b), a plurality of pins 13 are provided on the underside of the guide section 12 protruding downward, and pin holes 14 are formed in the top plate 11 of the sliding section 3 at positions corresponding to these pins 13. As a result, the guide sections 12 are detachable from the top plate 11 of the sliding section 3.

[0020] As shown in Fig. 4, a rectangular control box 16 is formed in the center of the interior of the sliding section 3 to house various electronic devices (not shown), including a receiver 15 that receives commands from a remote control (not shown). Also, as shown in Fig. 3(a), a rectangular lid 17 is provided in the center of the top plate 11 of the sliding section 3 so that the top of the control box 16 can be opened and closed. The remote control and the various electronic devices form a control section (not shown).

[0021] 4 to 6, inside the slide part 3, there are provided lift-up prevention parts 18 at two locations, one on the left and one on the right side of the control box 16, for preventing the slide part 3 from lifting up relative to the base part 2. The lift-up prevention parts 18 are configured to include a vertically long bolt 19 fixed to the bottom surface 6 of the base part 2, a front-to-rear long bracket 20 whose center is fixed to the upper end of the bolt 19, and presser rubbers 21 fixed to the undersides of the front and rear ends of the bracket 20.

[0022] A circular opening 23 through which the bolt 19 of the lift-up prevention part 18 passes is formed in the bottom surface 22 of the sliding part 3, and the size of the opening 23 is set so that the sliding part 3 can slide a predetermined distance (for example, 50 mm) in all directions. The presser rubber 21 of the lift-up prevention part 18 is designed so that when a lift-up force acts on the sliding part 3, the bottom surface 22 of the sliding part 3 comes into contact with the presser rubber 21, thereby preventing the sliding part 3 from lifting up.

[0023] As shown in Figure 4, a latch 25 is formed across the front and rear side plates 9 of the base portion 2 and the front and rear side surfaces 24 of the slide portion 3, and this latch 25 functions as a slide lock portion that disables the slide movement of the slide portion 3 when it is not necessary to slide the slide portion 3.

[0024] As shown in Figures 4 and 7 to 9, locking mechanisms 31 are provided at four locations on the left and right end sides of the slide section 3, corresponding to the respective mounting spaces 30 for the piping material 5. Each locking mechanism 31 includes a reeling section 33 that electrically reel in the belt 32 wound around the piping material 5, and a locking section 35 that can engage with a hook 34 provided at the end of the belt 32 wound around the piping material 5. The reeling section 33 and the locking section 35 are configured with a rotary solenoid 36 and a link mechanism 37 consisting of multiple connecting rods. For example, a wheelchair anti-reverse belt can be used as the locking mechanism 31, and the belt 32 is configured to be in a fixed state when not energized and to be in an unlocked state when energized. The operations of fixing and unlocking the belt 32 to the reeling section 33 and fixing and unlocking the hook 34 of the belt 32 to the locking section 35 can each be remotely controlled by the control unit. In addition, the power source for the locking mechanism 31 and the like is distributed from the lifting device 50, and the electrical wiring is connected by a one-touch attachment.

[0025] Next, a method of using the carrier device 1 according to the embodiment of the present invention will be described.

[0026] First, as shown in Figure 1, four pipes 5 to be hung at a height are placed in the respective loading spaces 30 on the slide section 3 of the loading platform 4. When the locking mechanism 31 is energized by remotely operating the remote control, the belt 32 is released, and the belt 32 is manually stretched and wrapped around the pipes 5 on the loading space 30, and the hook 34 at the tip is engaged with the locking section 35.

[0027] Next, when the remote controller is remotely operated to de-energize locking mechanism 31, the connecting rods of link mechanism 37 are held straight, the locking state is established, and locking section 35 is held in a horizontal position, as shown in Fig. 8. In this fixed state, even if hook 34 is pulled in the direction to release the locking (the direction of the right-pointing arrow in Fig. 8), compressive stress is applied to two of the three connecting rods that extend straight, and therefore the fixed state will not be released unless link mechanism 37 is broken.

[0028] With the piping material 5 thus fixed to each of the mounting spaces 30 on the slide section 3 of the loading platform 2, the loading platform device 1 carrying the piping material 5 is moved to a hoisting location by the lifting device 50. Then, at the predetermined hoisting location, the lifting device 50 is raised to lift the piping material 5 to a predetermined height.

[0029] Then, two workers are placed on an aerial work vehicle on either side of the longitudinal direction of the piping material 5 on the slide section 3 that has been lifted to a predetermined height, and when electricity is applied to the locking mechanism 31 by remote operation of the remote controller, the lock is released. In this unlocked state, as shown in Figure 9, the rotary solenoid 36 rotates, and the locking section 35 is held in a position rotated 60 degrees upward from the horizontal position (see Figure 9(b)), the hook 34 is released from the locking section 35, and the belt 32 is wound up on the winding section 33. The two workers then hoist the piping material 5 into the predetermined position.

[0030] In this unlocked state, the locking portion 35 is held at a position rotated upward by 60 degrees from the horizontal position, so that the hook 34 can be smoothly released from the locking portion 35. Therefore, the retracting operation of the belt 32 by the retracting portion 33 can be performed smoothly and reliably.

[0031] It is most preferable that the angle of the locking portion 35 from the horizontal position in the unlocked state is set to 60 degrees as described above, but it does not necessarily have to be 60 degrees as long as it is in the range of 55 to 65 degrees.

[0032] As described above, according to the loading platform device 1 of the embodiment of the present invention, the loading platform device 1 loaded with construction materials such as piping materials 5 can be moved to the hoisting location by the lifting device 50, and a team of two people can hoist the construction materials such as piping materials 5 into the designated position without dropping them.

[0033] Furthermore, the operation of fastening and unlocking the belt 32 to the construction materials such as the piping materials 5 loaded on the loading device 1 can be performed remotely by remote control.

[0034] Furthermore, if misalignment of construction materials such as piping materials 5 loaded on the loading platform device is noticed after the construction materials have been lifted to a high place, the position can be easily adjusted by sliding the slide portion 3 of the loading platform 4 back and forth and left and right.

[0035] Therefore, the loading platform device 1 according to the above-described embodiment can provide the excellent effect of reducing the labor required for hoisting construction materials such as piping materials 5 and improving safety. In particular, when the construction materials are long items such as piping materials or duct materials, the above-described effect is even more pronounced.

[0036] In addition, various types of existing aerial work vehicles can be used as the lifting device 50, and the loading platform device 1 can be easily attached to the work floor of such aerial work vehicles by removing the handrails from the vehicles and using general-purpose tools.

[0037] In the above description of the embodiment of the present invention, an example has been given of a case in which piping material 5 is loaded onto the loading platform device 1 and suspended at a high altitude. However, it goes without saying that the loading platform device 1 of the present invention can also be used to load and attach to a high altitude long objects other than piping material 5, such as duct materials and ceiling underlayment materials, as well as building materials including various types of equipment such as air conditioning equipment and lighting fixtures.

[0038] Furthermore, the above description of the embodiment of the present invention describes a preferred embodiment of the loading platform device 1 according to the present invention, and therefore may include various technically preferable limitations, but the technical scope of the present invention is not limited to these aspects unless there is a specific description that limits the present invention. [Explanation of symbols]

[0039] 1 Cargo bed device 2 Base 3 Slide section 5 Piping materials (building materials) 7. Ball bearings 9. Front, rear, left and right side panels of the base (slide control parts) 10 Protrusion 12 Guide section 18 Anti-floating part 25 Lock (slide lock) 31 Locking mechanism 32 Belt 33 Winding section 35 Rock Club 50 Lifting device

Claims

1. A loading platform device that can be installed on a lifting device used when hoisting construction materials to high places, a base portion attached to the lifting device; a slide portion that is provided on the base portion and is slidable in a horizontal direction relative to the base portion, and on which the construction material can be mounted; a locking mechanism that can remotely control the operation of fixing and releasing the building material mounted on the slide section; A loading platform device comprising:

2. a ball bearing that enables the sliding portion to slide horizontally; a slide restriction portion that restricts the horizontal slide length of the slide portion; a slide lock portion that disables the sliding movement of the slide portion; a lift-up prevention portion that prevents the slide portion from lifting up relative to the base portion; The loading device according to claim 1 , further comprising:

3. The locking mechanism is a winding unit that can electrically wind up a belt that is wound around the building material; a locking portion that can be engaged with a tip portion of the belt that is manually stretched from the winding portion and wound around the construction material; a control unit that enables each of the operations of fixing and releasing the belt with respect to the retractor and fixing and releasing the leading end of the belt with respect to the lock unit by remote control; The loading device according to claim 1 , further comprising:

4. 4. The loading platform device according to claim 3, wherein when the tip of the belt is fixed to the locking portion, the locking portion is maintained in a horizontal position, and when the tip of the belt is released from the locking portion, the locking portion is maintained in a position rotated 60 degrees upward from the horizontal position.

5. The building materials are long objects including piping materials and duct materials for building facilities, The slide portion has protruding guide portions for preventing the elongated object from rolling at predetermined intervals along a direction perpendicular to the longitudinal direction of the elongated object, 5. The loading platform device according to claim 1, wherein a protrusion is provided around the periphery of the base portion to prevent the long object from falling.

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