JP6086945B2 - Lift attachment device - Google Patents

Description

  The present invention relates to a lift attachment device.

  Beam formwork is used to construct beams for reinforced concrete structures. In installing the beam formwork, a method of hanging with a crane is generally employed. However, there is a desire to reduce the use frequency of cranes due to the type of construction method (for example, the reverse driving method) and the request for shortening the construction period.

  Therefore, for example, a method has been proposed in which a beam form frame is installed around a beam reinforcing bar so as to be lifted from below using a forklift disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 2003-26397).

JP 2003-26397 A

  When installing the beam formwork, the position must be adjusted in millimeters in order to fix the beam formwork in the correct position. However, it is extremely difficult to move the forklift itself back and forth, left and right in millimeters, or even rotate it.

  An object of the present invention is to provide a position-adjusting lift attachment device that can be attached to an elevating part of a lift such as a forklift and supports fine adjustment of the position of an object to be transported on the elevating part.

The lift attachment device of the present invention is
It has an elevating part that moves up and down, and is attached to the elevating part of a mobile machine body for conveying an object to be carried placed on the elevating part and installing it at a predetermined position in a high place, and A lift attachment device for position adjustment that supports fine adjustment of the position of an object,
A base part attached to the elevating part;
A slider that slides on the base portion;
And a bearing interposed between the base portion and the slider.

In the present invention,
The elevating part of the mobile body has two claws protruding in parallel,
The base portion preferably has two parallel square pipes arranged so that the claws are inserted.

In the present invention,
The two square pipes of the base portion constitute a first Y rail and a second Y rail as rails in the Y direction,
The slider preferably includes a first Y slider that slides on the first Y rail and a second Y slider that slides on the second Y rail.

In the present invention,
The first Y slider and the second Y slider are groove-shaped steel having a U-shaped cross section, and the first Y rail and the second Y rail are configured to receive the first Y rail and the second Y rail inside the groove. It is preferable to straddle on.

In the present invention,
A plurality of X bearing portions that allow sliding in the X direction, which is a direction perpendicular to the Y direction, are arranged on the upper surfaces of the first Y slider and the second Y slider,
Each said X bearing part is
One lateral bearing whose axis is parallel to the Y direction;
It is preferable to have two vertical bearings that are spaced apart from each other in the Y direction with the horizontal bearing in between, and whose axial centers are perpendicular to the X direction and the Y direction.

In the present invention,
It is preferable that an X slider is supported by the X bearing portion so as to be slidable in the X direction.

In the present invention,
An operation unit for operating the movement of the slider;
The operation unit is
A fixed pulley attached to the base portion;
A moving pulley attached to the slider;
A rope hung around the fixed pulley and the movable pulley;
It is preferable that the free end side of the rope hangs down.

The construction method of the beam of the present invention is:
Attach the lift attachment device to the two claws of the forklift,
Place a building structure or construction material on the lift attachment device,
After moving the forklift to a predetermined position, raise the two claws to a predetermined height,
Finely adjust the position of the building structure or construction material by moving the slider,
The building structure or construction material is attached to a predetermined installation location.

The figure for supplementary explanation of a subject. The perspective view of a lift attachment apparatus. The elements on larger scale of a lift attachment apparatus. The figure for demonstrating the operation | movement of a lift attachment apparatus, and its usage. The figure for demonstrating the operation | movement of a lift attachment apparatus, and its usage. The figure for demonstrating the operation | movement of a lift attachment apparatus, and its usage. The figure which shows 2nd Embodiment. The figure which shows 3rd Embodiment. The disassembled perspective view of 4th Embodiment. Sectional drawing of 4th Embodiment. The figure which shows the state which is using 4th Embodiment.

  Before describing the present invention, some background and problems that have led to the present invention will be supplemented. As explained in the background art section, it is quite difficult to adjust the position and angle of the beam formwork in millimeters only by driving control of the forklift itself. Therefore, there is an idea that the beam form is simply pushed by human power.

FIG. 1 is a diagram illustrating a state in which a beam formwork 12 is installed on a beam.
The steel frame 10 to be a beam has already been assembled, and a mold 12 incorporating a reinforcing bar 11 is attached to the steel frame 10. The beam-shaped frame 12 is reinforced by a thick vertical end 13 and a wide horizontal end 14 below the frame. Here, the beam formwork 12 is lifted by inserting the fork 16 of the forklift 15 into a square pipe having a thick lateral end 14.

The driver of the forklift 15 carries the beam form frame 12 directly below the beam (10, 11), and after aligning the direction, gradually raises the fork 16 to move the beam form frame 12 to the beam (steel frame 10, rebar 11). Try to fit. While the fork 16 is being lifted, the driver of the forklift 15 moves the forklift 15 back and forth and right and left while taking into account the positional relationship between the beam and the beam formwork 12.
Further, the fork 16 of the forklift 15 can be adjusted in angle between the pitching direction and the rolling direction. For example, a mast 17 that supports the fork 16 so as to be movable up and down is movable in the pitching direction. Further, a joint that is rotatable in the rolling direction is interposed between the mast 17 and the fork 16. Using this mechanism, the driver of the forklift 15 adjusts and matches the pitching and rolling (generally leveling).

  However, in the end, adjustment in millimeters is necessary. (Especially, fine adjustment is required by forward / backward / left / right movement and rotation in the yawing direction.) Therefore, an operator riding on the aerial work vehicle 18 pushes the beam formwork 12 manually. The force that the worker can exert by pushing the side is about 30 kg. On the other hand, the beam form 12 may be close to 1 ton. Since a plurality of workers push the beam form frame 12, it is not realistic to make the construction cost economical.

(First embodiment)
An embodiment of the present invention will be illustrated and described with reference to reference numerals attached to elements in the drawing.
FIG. 2 is a perspective view of the lift attachment device 100. For the sake of explanation, coordinate axes are set as shown in the figure. 2, taking the X axis from left to right, the Y axis from the back to the front, and the Z axis from the bottom to the top. In addition, the vertical, horizontal, and longitudinal directions are determined along the respective axes with reference to the center of FIG.

  The lift attachment device 100 includes a base part 200, a Y slide mechanism part 300, an X slide mechanism part 400, an operation part 510-540, and an outrigger 600.

  The base portion 200 is formed by joining two square pipes and two beams (H-shaped steel) in a square shape. That is, the base part 200 is obtained by joining the square pipes 230 and 240 like a beam to the front end and the rear end of the two square pipes 210 and 220 in the Y direction. Since the two square pipes 210 and 220 parallel to the Y direction also serve as rails of the Y slide mechanism unit 300 as will be described later, these are referred to as Y rails. For later explanation, the left Y rail is referred to as a first Y rail 210, and the right Y rail is referred to as a second Y rail 220. The front beam is the first beam 230 and the rear beam is the second beam 240.

  The Y slide mechanism unit 300 includes Y sliders 310 and 320 that slide on the Y rails 210 and 220 in the Y direction, and a bearing 350 that is disposed between the Y rails 210 and 220 and the Y sliders 310 and 320. Have. The Y sliders 310 and 320 are channel steels having a U-shaped cross section having a length in the Y direction. The Y sliders 310 and 320 straddle the Y rails 210 and 220 so as to receive the Y rails 210 and 220 inside the grooves. The left Y slider is a first Y slider 310, and the right Y slider is a second Y slider 320.

  One bearing 350 is provided near the front of each Y slider 310, 320 and one near the rear. FIG. 3 is a partially enlarged view of the lift attachment device 100. The bearing 350 is attached inside the grooves of the Y sliders 310 and 320. That is, both ends of the shaft center are fixedly attached to the side wall of the groove so that the shaft center of the bearing 350 is parallel to the X axis. As a result, the Y sliders 310 and 320 slide on the Y rails 210 and 220 along the Y rails 210 and 220. Since this bearing 350 moves the Y sliders 310 and 320 in the Y direction, it will be referred to as a Y bearing 350.

  The first Y slider 310 and the second Y slider 320 are connected by two beams 330 and 340. A beam 330 is provided so as to span between a position closer to the front of the first Y slider 310 and a position closer to the front of the second Y slider 320. This beam is referred to as a front beam 330. Similarly, a beam 340 is provided so as to span between a position near the rear of the first Y slider 310 and a position near the rear of the second Y slider 320. This beam is referred to as a rear beam 340.

In addition, a bolt 360 is screwed into the Y sliders 310 and 320 so that the tip of the bolt 360 abuts against or separates from the upper surfaces of the Y rails 210 and 220.
If the bolt 360 is screwed in, the movement of the Y sliders 310 and 320 is restricted. If the screw is strongly screwed in, the movement of the Y sliders 310 and 320 stops completely, but if the screw is loosely screwed and the frictional force is adjusted, the moving speed of the Y sliders 310 and 320 can be regulated to some extent.

  The X slide mechanism unit 400 includes four X bearing units 410 to 440 and two X sliders 450 and 460. First, the X bearing portion will be described. There are four X bearing portions, which are provided on the upper surfaces of the Y sliders 310 and 320. The X bearing portion provided near the front of the first Y slider 310 is referred to as a first X bearing portion 410. The X bearing portion provided near the front of the second Y slider 320 is referred to as a second X bearing portion 420. Further, the X bearing portion provided near the rear of the first Y slider 310 is referred to as a third X bearing portion 430, and the X bearing portion provided near the rear of the second Y slider 320 is referred to as a fourth X bearing portion 440.

  The first X bearing portion 410 and the second X bearing portion 420 support one X slider 450 so as to be movable in the X direction. This X slider is referred to as a first X slider 450 for later explanation. Similarly, another X slider 460 is supported by the third X bearing portion 430 and the fourth X bearing portion 440 so as to be movable in the X direction. This X slider is referred to as a second X slider 460.

Since the four X bearing portions 410 to 440 have basically the same configuration, the structure will be described here by taking the first X bearing portion 410 as an example. The first X bearing unit 410 has one horizontal bearing 411 and two vertical bearings 413. (For convenience of paper width, only one vertical bearing 413 is visible, but there is another vertical bearing 413 beyond the first X slider 450.)
The lateral bearing 411 is disposed so as to support the first X slider 450. In other words, the lateral bearing 411 has an axis that is parallel to the Y axis and enables the first X slider 450 to move in the X direction. Specifically, on the upper surface of the first Y slider 310, the two side plates 412 are erected so as to face each other at a predetermined interval in the Y direction (front-rear direction). (For the sake of paper width, only one side plate 412 is visible, but there is another side plate 412 on the other side of the first X slider 450.) And the two side plates 412 allow the axis of the lateral bearing 411 to be The heart is supported in a state parallel to the Y axis.

  The two side plates 412 are installed so as to sandwich the front beam 330 therebetween. As a result, both the front beam 330 and the side plate 412 are firmly fixed on the first Y slider 310.

  The two vertical bearings 413 are erected on the upper surface of the first Y slider 310 with the axis center parallel to the Z axis and the two side plates 412 interposed therebetween. The first X slider 450 is disposed between the two vertical bearings 413, and the two vertical bearings 413 serve as a restriction in the Y direction of the first X slider 450. Further, an upper plate 414 is provided on the upper end side of the two vertical bearings 413 so as to be bridged. A first X slider 450 is disposed between the upper plate 414 and the lateral bearing 411.

The second X bearing portion 420, the third X bearing portion 430, and the fourth X bearing portion 440 are the same as the first X bearing portion 410 except for the installation location.
Therefore, repeated description is omitted.
In the figure (for example, FIG. 3), the second digit of the reference numerals of the components of the first X bearing portion 410 is changed as the reference numerals of the components of the second X bearing portion 420, the third X bearing portion 430, and the fourth X bearing portion 440. Attached

  As described above, the X sliders 450 and 460 include the first X slider 450 and the second X slider 460. Both the first X slider 450 and the second X slider 460 are long square pipes. The first X slider 450 is guided by the first X bearing portion 410 and the second X bearing portion 420 and is movable in the X-axis direction. Similarly, the second X slider 460 is guided by the third X bearing portion 430 and the fourth X bearing portion 440 and is movable in the X-axis direction.

There are slight gaps between the X sliders 450 and 460 and the side plate 412 and between the X sliders 450 and 460 and the vertical bearing 413.
This is to allow the X sliders 450 and 460 to some extent allow yawing (rotation about the Z axis).

  On the upper surfaces of the first X slider 450 and the second X slider 460, there are protrusions 451 and 461 arranged in a comb-teeth shape in the X-axis direction in the central region. The protrusions 451 and 461 play a role of preventing the beam-shaped frame 12 from slipping in the beam extending direction by receiving the thick lateral end 14 of the beam-shaped frame 12 to be placed. Further, when the X sliders 450 and 460 move excessively in the X direction, the protrusions 451 and 461 are caught by the upper plate 414. That is, the protrusions 451 and 461 also serve as a restricting unit that restricts the X sliders 450 and 460 from excessively moving in the X direction.

  The first X slider 450 and the second X slider 460 are connected at both ends and in the middle of the extension direction, and are assembled into a shape in which two vertical bars are further inserted in a square shape as a whole. (In Kanji, it is the shape of an "eye"). As a result, the first X slider 450 and the second X slider 460 are integrated. The first X slider 450 and the second X slider 460 are connected to each other in the minus X direction (left side) by the first connecting rod 470 and connected in the plus X direction (right side) by the second connecting rod 480. Has been. The first connecting rod 470 and the second connecting rod 480 are specifically U-shaped, and are one step below the first X slider 450 and the second X slider 460 in the Z direction (height direction), that is, the Y slider. They are arranged so as to be almost the same height as 310 and 320. This is a device for providing the operation units 530 and 540. The operation unit will be described later. Further, two reinforcing members 490 are provided so as to be bridged between the first X slider 450 and the second X slider 460.

Next, the operation unit 510-540 will be described.
A total of four operation units 510-540 are provided.
These are referred to as first to fourth operation units 510-540.
The first operation unit 510 is an operation unit for pulling the Y sliders 310 and 320 in the plus Y direction.
The second operation unit 520 is an operation unit for pulling the Y sliders 310 and 320 in the minus Y direction.
The third operation unit 530 is an operation unit for pulling the X sliders 450 and 460 in the plus X direction.
The fourth operation unit 540 is an operation unit for pulling the X sliders 450 and 460 in the minus X direction.

First, the first operation unit 510 will be described.
The first operation unit 510 is provided between the first beam 230 and the front beam 330 of the base unit 200. The first operation unit 510 includes a fixed pulley 511, a moving pulley 512, a rope 513, and a stopper 514.

The fixed pulley 511 is attached to the first beam 230. Specifically, the first beam 230 is installed at a substantially central portion in the X direction. Further, the fixed pulley 511 is a single fixed pulley 511 in which three pulleys are coaxially connected.
The movable pulley 512 is attached to the front beam 330. Specifically, the front beam 330 is installed at a substantially central portion in the X direction. Further, the movable pulley 512 is a single movable pulley 512 in which three pulleys are coaxially connected.

The rope 513 is hung around the fixed pulley 511 and the movable pulley 512.
The fixed end of the rope 513 is tied and fixed at an appropriate place, and the free end is hung downward.

The stopper 514 is installed below the movable pulley 512.
The stopper 514 is composed of two cams, and the rope 513 is engaged between the cams to stop the movement of the rope 513.

  When the rope 513 of the first operation unit 510 is pulled downward, the Y sliders 310 and 320 move forward (plus Y direction). At this time, since the pulleys 511 and 512 are connected in triplicate, the Y sliders 310 and 320 can be pulled with a force three times the pulling force of the rope. In addition, since the Y sliders 310 and 320 move only one third of the operation amount (pulled length) of the rope 513, it is easy to adjust the positions of the Y sliders 310 and 320.

  The second operation unit 520 has basically the same configuration as the first operation unit 510, and only the installation location is different. The second operation unit 520 is provided between the second beam 240 and the rear beam 340.

  The third operation unit 530 is provided between the first connecting rod 470 and the first Y slider 310. The configuration of the third operation unit 530 is basically the same as the configuration of the first operation unit 510. A fixed pulley 531 is provided on the left side surface (side surface facing the minus Y direction) of the first Y slider 310. A movable pulley 532 is provided on the first connecting rod 470. A rope 533 is wound around the fixed pulley 531 and the movable pulley 532.

  The fourth operation unit 540 has basically the same configuration as the third operation unit 530, and only the installation location is different. The fourth operation unit 540 is provided between the second connecting rod 480 and the second Y slider 320.

The outrigger 600 includes two struts 610 and a fastener 620 that attaches the strut 610 to the front end of the base portion 200.
The fastener 620 has a rotary joint so that the column 610 can be switched between a horizontal posture and a vertical posture (see FIG. 5).
In addition, the column 610 can be expanded and contracted.

An operation of the lift attachment device 100 having such a configuration and a method for using the lift attachment device 100 will be described with reference to FIGS.
First, the lift attachment device 100 is attached to the fork 16 of the forklift 15. That is, the fork 16 of the forklift 15 is inserted into the base part 200. Since the first Y rail 210 and the second Y rail 220 of the base part 200 are square pipes, the fork 16 of the forklift 15 is inserted into this pipe hole.

Next, as shown in FIG. 4, the beam form frame 12 is placed on the lift attachment device 100.
At this time, it is confirmed that the rope 513 is sandwiched between the stoppers 514 and the rope 533 is sandwiched between the stoppers 534 so that the Y sliders 310 and 320 and the X sliders 450 and 460 do not move freely.
If the rope 513 is sandwiched between the stoppers 514 and the rope 533 is sandwiched between the stoppers 534, the Y sliders 310 and 320, the X sliders 450 and 460 are not moved freely, and it is safe.

  Next, the forklift 15 is moved to the place where the beam formwork 12 is installed. And when it comes to the place which installs the beam formwork 12, the fork 16 is raised slowly. When the fork 16 is raised to a predetermined height, the fork 16 is stopped and the outrigger 600 is raised. This supports the tip of the fork 16 and prevents the fork 16 from being tilted unintentionally.

  Finally, the position of the beam form frame 12 is finely adjusted using the first to fourth operation units 510-540. For example, when it is desired to finely adjust the position in the Y direction, the ropes 513 of the first operation unit 510 and the second operation unit 520 may be removed from the stopper 514 and one of the ropes 513 may be pulled. In addition, it is preferable that the rope 513 that is not pulled is firmly held. This is because there is a role to stop movement. Similarly, the position in the X direction can be finely adjusted using the ropes 513 of the third operation unit 530 and the fourth operation unit 540.

  If necessary, the X sliders 450 and 460 can be rotated in the yawing direction to adjust the angle. Since the rotation operation is difficult in the first to fourth operation portions 510-540, the ends of the X sliders 450 and 460 or the corners of the beam form frame 12 may be pushed with a stick. Alternatively, an operator riding on the aerial work vehicle 17 may lightly press the corners of the beam formwork 12. (Alternatively, if the rope 513 is hung from the end of the X sliders 450 and 460, the rope 513 can be used for the rotation operation.)

  When the fine adjustment of the position and orientation of the beam form frame 12 is completed, the rope 513 is fixed to the stopper 514 and the rope 533 is fixed to the stopper 534. Further, the beam form frame 12 can be fixed to the beam by a bolt 360 stop.

In addition, the installation procedure of the beam formwork 12 is not restricted to the above.
The position of the beam form frame 12 may be finely corrected by pulling the rope 513 of the operation units 510 and 540 while raising the fork 16, or the yawing angle may be adjusted in the middle.

According to such 1st Embodiment, there exists the following effect.
(1) By using the lift attachment device 100, the position of the beam form frame 12 placed on the fork 16 of the forklift 15 can be finely adjusted. This has an epoch-making effect that makes the installation work of the beam form frame 12 much easier than adjusting the position of the forklift 15 itself. Needless to say, it is difficult to control the forklift 15 in a precise manner, but since the operator of the forklift 15 cannot directly see the positional relationship between the beam form 12 and the beam, the trial and error are repeated. It will be. In other words, when finely adjusting the position of the beam formwork 12, the operation of the forklift 15 and the movement of the beam formwork 12 on the fork 16 are separated, making the adjustment work quicker and easier.

(2) The Y sliders 310, 320 and the X sliders 450, 460 are supported by bearings 350, 411, 413. Although the total weight of the beam form frame 12 may be close to 1 ton, the friction coefficient of the bearings 350, 411, and 413 is 0.01 or less, so the beam form form 12 mounted on the lift attachment device 100 is moved. The force required to make it 10 kg or less. Furthermore, since the operation unit 510-540 uses a triple pulley, the position of the beam form 12 can be adjusted with a smaller force. Since the position of the beam formwork 12 can be adjusted with such a small force, the beam formwork 12 can be installed easily and quickly with a small number of people. If the beam form frame 12 placed directly on the fork 16 of the forklift 15 is moved even by 1 mm, a considerable number of people will be required. Even if lubricating oil is applied between the fork 16 and the beam formwork 12, the friction coefficient of the lubricating oil is about 0.1, which is not at a level that can be moved manually. Compared to this, the reduction of the work load by the lift attachment device 100 of the present embodiment has a special effect.

(3) As the operation units 510-540, the ropes 513 hung around the pulleys 511, 512 are suspended, and the Y sliders 310, 320 and the X sliders 450, 460 are moved by pulling the rope 513. . As long as the rope 513 can be gripped, the operator may freely change the position to some extent. For example, it is not necessary to enter directly under the beam form 12, and the operation may be performed at a position somewhat away from the beam form 12. This leads to worker safety.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG.
The basic configuration of the second embodiment is the same as that of the first embodiment.
The main difference between the first embodiment and the second embodiment is that the X sliders 450 and 460 are deleted as shown in FIG. Considering the configuration of the beam form frame 12, the vertical end thick 13 itself may be used instead of the X slider. Therefore, the X slide mechanism unit 400 may include only the X bearing unit 410-440 without the X slider.

(Third embodiment)
Further, a third embodiment is shown in FIG.
In the third embodiment, the X slide mechanism 400 is deleted from the first embodiment. In the third embodiment, the beam formwork 12 can be moved only in the Y direction. Since the position of the beam form frame 12 on the fork 16 can be finely adjusted only in one direction (Y direction), the working efficiency is remarkably improved as compared with the prior art.

Although illustration is omitted, the Y slide mechanism 300 may be deleted from the first embodiment, and the X slide mechanism 400 may be provided directly on the base portion 200.
Again, the work efficiency can be significantly improved as compared with the prior art because the position of the beam form frame 12 on the fork 16 can be finely adjusted in only one direction (X direction).

(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described with reference to FIGS.
The fourth embodiment includes a base part 200, a support plate part 710, a free ball bearing 720, and a slider 730. The base portion 200 is provided with a hole into which the fork 16 is inserted. A support plate portion 710 is fixedly provided on the base portion 200. The support plate portion 710 has a peripheral edge on the upper surface thereof, and a storage space is defined inside the peripheral edge. A plurality of free ball bearings 720 are disposed on the upper surface of the support plate portion 710. A slider 730 that is slightly smaller than the support plate 710 is disposed inside the storage space. That is, the slider 730 is on the free ball bearing 720. As shown in the cross-sectional view of FIG. 10, the slider 730 has a lower peripheral edge protruding downward, and the peripheral edge surrounds the free ball bearing 720.

  It will be understood that in the fourth embodiment as well, the position of the beam formwork 12 can be finely adjusted as in the first embodiment by placing the beam formwork 12 on the slider 730.

  Although not shown in detail, it goes without saying that a pulley or a rope may be attached to an appropriate portion of the slider 730 to serve as an operation unit.

  In the case of the fourth embodiment, since the moving direction of the slider 730 is not restricted by the rails (210, 220), the vertical bearings 413, and the like, there is an advantage that the moving direction of the slider 730 has a degree of freedom. In other words, the degree of freedom is too high, and it is somewhat difficult to stop the slider 730 at an appropriate position or move the slider 730 in the intended direction. In this regard, there is an advantage in regulating the sliding direction of the slider as in the first to third embodiments.

Note that the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention.
In the above embodiment, the fork of the forklift is inserted into the hole of the base part, but how to attach the lift attachment device to the forklift is not particularly limited.
The base portion may be directly attached to the forklift mast.

  Of course, the lift attachment device of the above-described embodiment may be attached to a manually lifted lift instead of a forklift.

Of course, the application of the present embodiment is not limited to the beam formwork.
Examples of the object to be transported include various types such as steel frames, pre-assembled reinforcing bars, precast beam materials, and half precast beam materials.

DESCRIPTION OF SYMBOLS 10 ... Steel frame, 11 ... Reinforcing bar, 12 ... Beam formwork, 13 ... Thick vertical end, 14 ... Thick side end, 15 ... Forklift, 16 ... Fork, 17 ... Mast, 18 ... Aerial work vehicle,
100 ... Lift attachment device,
200 ... base portion, 210 ... first Y rail (square pipe), 220 ... second Y rail (square pipe), 230 ... first beam, 240 ... second beam,
300 ... Y slide mechanism, 310 ... first Y slider, 320 ... second Y slider, 330 ... front beam, 340 ... rear beam, 350 ... Y bearing, 360 ... bolt,
400 ... X slide mechanism,
410 ... 1st X bearing part, 411 ... Horizontal bearing, 412 ... Side plate, 413 ... Vertical bearing, 414 ... Upper plate,
420 ... 2X bearing part, 430 ... 3rd X bearing part, 440 ... 4th X bearing part, 450 ... 1st X slider, 451 ... Projection part, 460 ... 2nd X slider, 461 ... Projection part,
470 ... first connecting rod, 480 ... second connecting rod, 490 ... reinforcing material,
510 ... 1st operation part, 511 ... Fixed pulley, 512 ... Dynamic pulley, 513 ... Rope, 514 ... Stopper,
520 ... second operation unit,
530 ... third operation unit, 531 ... fixed pulley, 532 ... dynamic pulley, 533 ... rope, 534 stopper,
540 ... Fourth operation unit,
600 ... Outrigger, 610 ... Post, 620 ... Fastener,
710: Support plate portion, 720: Free ball bearing, 730: Slider.

Claims (6)

It has an elevating part that moves up and down, and is attached to the elevating part of a mobile machine body for conveying an object to be carried placed on the elevating part and installing it at a predetermined position in a high place, and A lift attachment device for position adjustment that supports fine adjustment of the position of an object,
A base part attached to the elevating part;
A slider that slides on the base portion;
A bearing disposed between the base portion and the slider ,
The elevating part of the mobile body has two claws protruding in parallel,
The base section may have a two parallel square pipes arranged such that the pawl is inserted,
The two square pipes of the base portion constitute a first Y rail and a second Y rail as rails in the Y direction,
The slider includes a first Y slider that slides on the first Y rail, and a second Y slider that slides on the second Y rail. The lift attachment device according to claim 1 ,
The first Y slider and the second Y slider are groove-shaped steel having a U-shaped cross section, and the first Y rail and the second Y rail are configured to receive the first Y rail and the second Y rail inside the groove. A lift attachment device that is straddling the top. In the lift attachment device according to claim 1 or 2 ,
A plurality of X bearing portions that allow sliding in the X direction, which is a direction perpendicular to the Y direction, are arranged on the upper surfaces of the first Y slider and the second Y slider,
Each said X bearing part is
One lateral bearing whose axis is parallel to the Y direction;
A lift attachment device comprising: two vertical bearings spaced apart from each other in the Y direction with the horizontal bearing therebetween, and having an axial center perpendicular to the X direction and the Y direction. The lift attachment device according to claim 3 ,
A lift attachment device comprising an X slider supported by the X bearing portion so as to be slidable in the X direction. The lift attachment device according to any one of claims 1 to 4 ,
An operation unit for operating the movement of the slider;
The operation unit is
A fixed pulley attached to the base portion;
A moving pulley attached to the slider;
A rope hung around the fixed pulley and the movable pulley;
A lift attachment device, wherein a free end side of the rope hangs down. The lift attachment device according to any one of claims 1 to 5 is attached to two claws of a forklift,
Place a building structure or construction material on the lift attachment device,
After moving the forklift to a predetermined position, raise the two claws to a predetermined height,
Finely adjust the position of the building structure or construction material by moving the slider,
A construction method of a beam using a lift attachment device, wherein the building structure or construction material is attached to a predetermined installation location.

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