Loading platform device

Abstract

Enhance the safety during the lifting and lowering operation of building materials and reduce the labor and effort of the lifting and lowering operation to achieve labor saving. 【Solution means】 The present invention is a loading platform device 1 that can be installed on a lifting device 50 used when lifting building materials 5 to a high place, and includes a base portion 2 attached to the lifting device 50, and a sliding portion 3 provided on the base portion 2 so as to be slidable in the horizontal direction with respect to the base portion 2 and capable of mounting the building materials 5, and a locking mechanism 31 capable of remotely controlling the operation of fixing and releasing the building materials mounted on the sliding portion 3.

Description

Technical Field

[0001] The present invention relates to a platform device that can be installed on a lifting device used when lifting building materials to a high place.

Background Art

[0002] Conventionally, when performing work of lifting building materials such as equipment, pipe materials, ducts, etc. to a high place, an electric or gas cylinder type lifting device (upper) has been used.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the above-described conventional lifting device, when performing work of lifting building materials such as pipe materials to a high place, round-shaped materials such as pipe materials are unstable, so there is a risk that the pipe materials may roll and fall from the lifting device, or the lifting device may tip over due to uneven weight of the loaded pipe materials or the like.

[0005] Also, when misalignment occurs during connection work of pipe materials or the like, it is necessary to raise and lower the pipe materials or the like many times for fine adjustment of the mounting position of the pipe materials or the like, which also causes a problem that the work is time-consuming.

[0006] The present invention has been made to solve the above-described problems, and an object thereof is to provide a platform device that can enhance the safety during the lifting work of building materials and reduce the labor and effort required for the lifting work to achieve labor saving.

Means for Solving the Problems

[0007] In order to achieve the above object, the present invention is a loading platform device that can be installed on a lifting device used when lifting building materials to a high place, comprising a base portion attached to the lifting device, a slide portion provided on the base portion so as to be slidable in a horizontal direction with respect to the base portion and capable of mounting the building materials, and a locking mechanism capable of remotely controlling the operation of fixing and releasing the fixing of the building materials mounted on the slide portion.

[0008] In the loading platform device according to the present invention, it is preferable to include a ball bearing that enables the slide portion to slide in the horizontal direction, a slide restricting portion that restricts the slide length of the slide portion in the horizontal direction, a slide locking portion that makes the slide operation of the slide portion impossible, and a lifting prevention portion that prevents the slide portion from lifting with respect to the base portion.

[0009] In the loading platform device according to the present invention, the locking mechanism preferably includes a winding portion capable of electrically winding a belt wound around the building materials, a locking portion that can be manually extended from the winding portion and locked to the tip of the belt wound around the building materials, and a control portion capable of remotely operating each operation of fixing and releasing the fixing of the belt to the winding portion and fixing and releasing the tip of the belt to the locking portion.

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

[0011] In the loading platform device according to the present invention, the building materials are long objects including pipe materials and duct materials for building equipment, guide portions for preventing the long objects from rolling are provided on the slide portion at predetermined intervals along a direction perpendicular to the longitudinal direction of the long objects, and protruding portions for preventing the long objects from falling are preferably provided around the base portion.

Advantages of the Invention

[0012] According to the present invention, various excellent effects can be obtained, such as labor saving in the hoisting operation of building materials and improvement of safety.

Brief Description of the Drawings

[0013]

Figure 1

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Figure 10

Embodiments for Carrying Out the Invention

[0014] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Here, FIG. 1 is a plan view showing a state in which a pipe material is mounted 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 shows 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, (c) is a right side view, FIG. 4 is a plan view showing a loading platform of the loading platform device according to an embodiment of the present invention, FIG. 5 is a cross-sectional view showing the inside of the loading platform of the loading platform device according to an embodiment of the present invention, FIG. 6 is a schematic cross-sectional view showing the inside of the loading platform of the loading platform device according to an embodiment of the present invention, FIG. 7 is a cross-sectional view showing a lock mechanism of the loading platform device according to an embodiment of the present invention, FIG. 8 shows the lock mechanism when fixed in the loading platform device according to an embodiment of the present invention, (a) is a plan view, (b) is a cross-sectional view, FIG. 9 shows the lock mechanism when the fixing is released in the loading platform device according to an embodiment of the present invention, (a) is a plan view, (b) is a cross-sectional view, and FIG. 10 is an elevation view showing a lifting device to which the loading platform device according to an embodiment of the present invention is attached. In the following description, the case where a pipe material is mounted on the loading platform device will be illustrated and described.

[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 a pipe material 5 is mounted on the slide portion 3 of the loading platform 4. Further, the loading platform device 1 can be attached to a lifting device 50 as shown in FIG. 10, and as the lifting device 50, various existing types of aerial work platforms can be used.

[0016] As well shown in FIG. 2, the base portion 2 has a rectangular shape in plan view and has a flat box shape with an upper opening. On the bottom surface 6 of the base portion 2, ball bearing units 8 formed by attaching a large number (16 in the drawing) of ball bearings 7 in a row at a predetermined interval are fixed at a predetermined interval over four rows in the front-rear direction.

[0017] On the left, right, front, and rear side plates 9 of the base portion 2, a plurality (a total of 8 in the drawing) of rod-shaped protrusions 10 are provided so as to be able to stand up. By maintaining the standing posture, these protrusions 10 have the function of preventing the pipe member 5 mounted on the slide portion 3 of the loading platform 4 from falling off the loading platform 4. Note that when the protrusions 10 do not need to function to prevent the pipe member 5 from falling, they can be laid down along the outer surfaces of the left, right, front, and rear side plates 9 and held in a horizontal posture.

[0018] As shown well in FIGS. 1 and 3(a), in plan view, the slide portion 3 has a rectangular shape slightly smaller than the base portion 2 so that a predetermined gap is formed between the slide portion 3 and the left, right, front, and rear side plates 9 of the base portion 2, and has a flat box shape. In the present embodiment, the slide portion 3 is placed on the ball bearing 7 so that a space of 50 mm in the front, rear, left, and right directions is formed between the slide portion 3 and the left, right, front, and rear side plates 9 of the base portion 2. Thereby, the slide portion 3 can slide 50 mm in the horizontal directions of the front, rear, left, and right with respect to the base portion 2, and the left, right, front, and rear side plates 9 of the base portion 2 function as slide restricting portions for restricting the slide length of the slide portion 3 in the front, rear, left, and right directions.

[0019] As shown well in FIG. 3, on the top plate 11 of the slide portion 3, five guide portions 12 project at predetermined intervals in five rows in the front and rear directions along the direction orthogonal to the longitudinal direction. Thereby, a placement space 30 for four pipe members 5 is formed between the guide portions 12 on the top plate 11 of the slide portion 3, and these guide portions 12 have the function of preventing the pipe members 5 from rolling. Further, as shown in FIG. 3(b), a plurality of pins 13 project downward on the lower surface side of the guide portion 12, and pin holes 14 are formed at positions corresponding to these pins 13 on the top plate 11 of the slide portion 3. Thereby, the guide portion 12 is detachable from the top plate 11 of the slide portion 3.

[0020] As shown in FIG. 4, a rectangular control box 16 for accommodating various electronic devices (not shown) including a receiver 15 that receives commands from a remote controller (not shown) is formed in the central portion inside the slide portion 3. Further, as shown in FIG. 3(a), a rectangular lid portion 17 is provided at the center of the top plate 11 of the slide portion 3 so as to be openable and closable above the control box 16. The remote controller and the various electronic devices constitute a control unit (not shown).

[0021] As shown in FIGS. 4 to 6, inside the slide portion 3, anti-lifting portions 18 for preventing the slide portion 3 from lifting with respect to the base portion 2 are provided at two locations, left and right, of the control box 16. The anti-lifting portion 18 includes a vertically long bolt 19 fixed to the bottom surface 6 of the base portion 2, a longitudinally long bracket 20 having its center portion fixed to the upper end of the bolt 19, and pressing rubbers 21 fixed to the lower surfaces of the front and rear end portions of the bracket 20.

[0022] On the bottom surface 22 of the slide portion 3, an opening 23 through which the bolt 19 of the anti-lifting portion 18 penetrates is formed in a circular shape, and the size of the opening 23 is set such that the slide portion 3 can slide a predetermined length (for example, 50 mm) in the front-rear and left-right directions. When a lifting force acts on the slide portion 3, the pressing rubber 21 of the anti-lifting portion 18 contacts the bottom surface 22 of the slide portion 3, thereby preventing the slide portion 3 from lifting.

[0023] Further, as shown in FIG. 4, a hasp lock 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. When it is not necessary to slide the slide portion 3, the hasp lock 25 functions as a slide lock portion that disables the slide operation of the slide portion 3.

[0024] As shown in FIGS. 4 and 7 to 9, on the left and right end portions of the slide portion 3, lock mechanisms 31 are provided at four positions corresponding to the respective mounting spaces 30 of the pipe member 5. Each lock mechanism 31 includes a winding portion 33 capable of electrically winding a belt 32 wound around the pipe member 5, and a locking portion 35 capable of locking to a hook 34 provided at the tip of the belt 32 wound around the pipe member 5. The winding portion 33 and the locking portion 35 are configured to include a rotary solenoid 36 and a link mechanism 37 composed of a plurality of connecting rods. The lock mechanism 31 can utilize, for example, a backward prevention belt for a wheelchair, and is configured such that the belt 32 is in a fixed state when not energized and the belt 32 is in a fixed-release state when energized. Each operation of fixing and releasing the belt 32 to and from the winding portion 33 and fixing and releasing the hook 34 of the belt 32 to and from the locking portion 35 can be remotely operated by the control unit. Also, the power supply for the lock mechanism 31 etc. is branched from the lifting device 50, and the electrical wiring is a one-touch attachment connection.

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

[0026] First, as shown in FIG. 1, the four pipe members 5 to be lifted into high places are respectively placed on the respective mounting spaces 30 on the slide portion 3 of the loading platform 4. When the lock mechanism 31 is energized by remotely operating the remote controller, the fixing of the belt 32 is released. Therefore, the belt 32 is manually stretched and wound around the pipe member 5 on the mounting space 30, and the hook 34 at the tip is locked to the locking portion 35.

[0027] Next, when the lock mechanism 31 is de-energized by remotely operating the remote controller, as shown in FIG. 8, the connecting rods of the link mechanism 37 are held linearly and become fixed, and the locking portion 35 is held in a horizontal posture. In this fixed state, even if the hook 34 is pulled in the direction of releasing the fixing (the rightward arrow direction in FIG. 8), since compressive stress is applied to two of the three linearly extended connecting rods of the link mechanism 37, the fixed state will not be released unless the link mechanism 37 breaks.

[0028] With the pipe material 5 fixed to each mounting space 30 on the slide portion 3 of the loading platform 2 in this way, the loading platform device 1 carrying the pipe material 5 is moved to the lifting-in place by the lifting device 50. Then, at a predetermined lifting-in place, the lifting device 50 is lifted to lift the pipe material 5 to a predetermined height.

[0029] Then, with two workers boarding the aerial work platform on both longitudinal sides of the pipe material 5 on the slide portion 3 lifted to the predetermined height in pairs, when the lock mechanism 31 is energized by remote operation of the remote controller, it enters the unlocked state. In this unlocked state, as shown in FIG. 9, the rotary solenoid 36 rotates, and the lock portion 35 is held at a position rotated 60 degrees upward from the horizontal posture (see FIG. 9(b)). The hook 34 is disengaged from the lock portion 35, and the belt 32 is wound around the winding portion 33. Thereafter, the operation of lifting the pipe material 5 to a predetermined position is performed by two workers in a pair.

[0030] By holding the lock portion 35 at a position rotated 60 degrees upward from the horizontal posture in the unlocked state in this way, the hook 34 can be smoothly disengaged from the lock portion 35. Therefore, the operation of winding the belt 32 by the winding portion 33 can be performed smoothly and reliably.

[0031] Note that the angle of the lock portion 35 from the horizontal posture in the unlocked state is most preferably 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 according to the embodiment of the present invention, the loading platform device 1 carrying building materials such as the pipe material 5 can be moved to the lifting-in place by the lifting device 50, and the building materials such as the pipe material 5 can be lifted to a predetermined position without dropping them with two workers in a pair.

[0033] In addition, the operation of fixing and releasing the fixing of the belt 32 to the building materials such as the pipe material 5 mounted on the loading platform device 1 can be remotely performed by the remote controller.

[0034] Furthermore, when it is noticed that the building materials such as the pipe material 5 mounted on the loading platform device are displaced in position after being lifted to a high place, the slide part 3 of the loading platform 4 can be slid back and forth and left and right to easily perform the adjustment of alignment.

[0035] Therefore, according to the loading platform device 1 according to the above-described embodiment, excellent effects such as labor saving in the work of loading building materials such as the pipe material 5 and improvement in safety can be obtained. In particular, when the building materials are long objects such as pipe materials and duct materials, the above effects become more remarkable.

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

[0037] In the description of the above embodiment according to the present invention, the case where the pipe material 5 is mounted on the loading platform device 1 and lifted to a high place has been exemplified and described. Needless to say, the loading platform device 1 according to the present invention can also be used when mounting building materials including various equipment such as air conditioners and lighting fixtures, in addition to long objects such as duct materials and ceiling base materials other than the pipe material 5 and attaching them to a high place.

[0038] In addition, the description of the above embodiment of the present invention describes a preferred embodiment of the loading platform device 1 according to the present invention, and thus may be subject to various technically preferable limitations. However, the technical scope of the present invention is not limited to these aspects unless there is a description specifically limiting the present invention.

Explanation of Reference Numerals

[0039] 1 Loading platform device 2 Base part 3 Slide part 5 Pipe material (building material) 7 Ball bearing 9 Side plates (slide restricting parts) on the front, rear, left, and right of the base part 10 Protrusion 12 Guide part 18 Anti - lifting part 25 Snap lock (slide lock part) 31 Lock mechanism 32 Belt 33 Take - up part 35 Lock part 50 Lifting device

Claims

1. A loading platform device installable on a hoisting device used when hoisting building materials to a high place, a base part attached to the hoisting device, a slide part provided on the base part so as to be slidable in a horizontal direction with respect to the base part and capable of mounting the building materials, a winding part capable of electrically winding a belt wound around the building materials, a lock part manually extended from the winding part and capable of locking to the tip of the belt wound around the building materials, a control part enabling remote operation of fixing and releasing the belt to and from the winding part and switching between the fixed state and the released state of the lock part, The loading platform device is characterized by comprising the above.

2. A ball bearing enabling the horizontal sliding operation of the slide part, a slide regulating part regulating the horizontal sliding length of the slide part, a slide lock part disabling the sliding operation of the slide part, a lifting prevention part preventing the lifting of the slide part with respect to the base part, The loading platform device according to Claim 1, comprising the above.

3. When the tip of the belt is fixed to the lock part, the lock part is held in a horizontal posture, and when the tip of the belt is released from the lock part, the lock part is held in a position rotated 60 degrees upward from the horizontal posture. The loading platform device according to Claim 1.

4. The building materials are long objects including pipe materials and duct materials for building equipment, on the slide part, guide parts for preventing the rolling of the long object are projectingly provided at predetermined intervals along a direction orthogonal to the longitudinal direction of the long object, Around the base part, a protruding part for preventing the fall of the long object is provided. The loading platform device according to any one of Claims 1 to 3.

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