JP5642412B2 - Flat position adjustment jig - Google Patents

Description

  The present invention relates to a planar position adjustment hanging jig capable of adjusting a distance between left and right suspension points (hereinafter also referred to as a right and left suspension point interval) in a state where a plurality of suspended loads are suspended.

If a plurality of suspended loads are lifted and carried through the crane hooks one by one, the number of times of transportation by the crane increases. Therefore, in order to reduce the number of times the crane is transported and shorten the crane borrowing time, it is effective to use a hanging jig capable of hanging a plurality of suspended loads.
For example, in order to carry a suspended load such as a precast pillar material from a temporary placement location to an installation location by a crane, first lift the suspended load arranged at a predetermined left and right suspension point interval to the temporary placement location via a crane hook, and then It is necessary to put them down at predetermined installation locations with predetermined left and right suspension points. At this time, in order to cope with the difference between the left and right suspension point intervals between the temporary placement location and the installation location, a planar position adjustment suspension jig is used. According to this hanging jig, the distance between the left and right suspension points can be adjusted in a state where a plurality of suspended loads are suspended, the number of times of transportation by the crane can be reduced, and the borrowing time of the crane can be shortened. The number of times of transportation by crane is the value obtained by dividing the total number of loads to be transported by the number of loads suspended through the hanging jigs hung on the crane hook, and the number of loads suspended through the hanging jigs. If it is three, it is about 1/3 of the case where one suspended load is suspended on the crane hook. FIG. 5 shows a state in which one precast pillar material W is hung on a crane hook 100 with a sling wire 100a.

Here, when constructing a structure or disassembling a structure, there is a strong demand to use a planar position adjustment hanging jig even in a narrow place where interference objects such as structures are on the left and right.
By the way, based on the signal from the detector which detects the space | interval of the suspended loads mounted in the main body frame, the position of the inner / outer twist lock is adjusted, and the container suspension jig for suspending up to two suspended loads has been proposed ( Patent Document 1). This container hanging jig is provided with outer twist locks at both ends of a tension rod that expands and contracts in the left-right direction from the main body frame, and has inner twist locks at both left and right ends of the main body frame. For this reason, the width of the suspension jig is the sum of the length of the main body frame and the length of the tension rod that expands and contracts.

JP 2004-292135 A

However, in the case of the container hanging jig described in Patent Document 1, if the interval between the suspended loads is to be increased to a desired value, the length of the main body frame must be lengthened to cope with it, and the suspension is wide. There is a problem that the suspension jig is not used because of interference between the structure on the left and right of the narrow space and the suspension jig.
In addition, as shown in FIG. 6, when a pair of box bodies 22 are arranged so as to be movable symmetrically to the left and right with respect to the center of the width of the support beam 21 that hits the main body frame, and the planar position adjusting jig 20 is configured. A similar problem occurs. In FIG. 6, 24 is a screw shaft, and 25 is a drive source for rotating the screw shaft 24. A hanging load hook 23 for suspending one suspended load W is provided at the lower ends of the pair of left and right box bodies 22. By rotating the screw shaft 24, the pair of left and right box bodies 22 move symmetrically on the support beam 21, and the left and right suspension point interval 2L changes. In order to use a hanging jig for hanging three pieces, a hanging load hook 23 for hanging one suspended load W is also provided at the lower end of the battery box 26 fixed at the center of the width of the support beam 21.

  However, in the case of the hanging jig 20 in which a pair of box bodies 22 are arranged so as to be movable symmetrically with respect to the center of the width of the support beam 21, if the distance 2L between the left and right suspension points is increased to a desired value, the support beam 21 It is necessary to cope with this by increasing the length of the cable, and it becomes a wide hanging jig, and in a narrow place where interference such as a structure is on the left and right, it is suspended from the structure on the left and right of the narrow place. Interference with the width end of the jig occurs.

  In the present invention, the distance between the left and right suspension points can be increased to a desired value, and the width of the suspension jig can be changed according to the distance between the left and right suspension points. An object of the present invention is to provide a planar position adjustment hanging jig that can be used even in a narrow place where an interference object is on the left and right.

The inventor diligently examined the planar position adjustment hanging jig, and as a result, the link mechanism can solve the above-mentioned problem by changing the width of the hanging jig according to the distance between the left and right hanging points. The present invention was made upon obtaining the knowledge that it was possible.
That is, the present invention is as follows.
[Claim 1] A planar position adjustment hanging jig capable of adjusting the distance between left and right suspension points by means of a link mechanism of a left and right independent drive system in a state where a plurality of suspended loads are suspended, which is suspended by engagement with a crane hook The case has a point at the upper end and is composed of front and rear support members extending in the vertical direction, and is housed inside the case and left and right with respect to the width center of the case A pair of vertical movement / holding means provided, a pair of left and right moving bodies that move up and down by rotation of the screw shaft by a predetermined amount of movement inside the case portion by the pair of vertical movement / holding means, and the pair of left and right movements When the movable body is moved to the upper / lower limit position, it is arranged in a downward slope in a direction away from the center of the width of the case portion, and the longitudinal base end portion is rotatably connected to the movable body. Connected through pins, longitudinal A pair of left and right first links provided with a suspension point for suspending one suspended load at the front end of the direction, and below the first link, in a direction away from the center of the width of the case portion to the left and right The case portion is arranged in an upwardly inclined manner, and the longitudinal end portion is rotatably connected to the longitudinal intermediate portion of the first link via a connecting pin, and the longitudinal base end portion is rotatable. A pair of left and right second links connected to the lower part of the movable body through a connecting pin, a drive source disposed at an upper end of the screw shaft for rotating the screw shaft, and sliding the connecting pin to move the moving body. A planar position adjusting jig comprising a guide groove for guiding vertical movement .

[Claim 2] A planar position adjusting jig capable of adjusting the distance between left and right suspension points by a link mechanism of a left and right common drive system in a state where a plurality of suspended loads are suspended, which is suspended by engagement with a crane hook A case portion composed of front and rear support members having a point at the upper end and extending in the vertical direction; and a pair of vertical movement / holding means provided on the left and right with respect to the width center of the case portion; by the pair of vertical movement and holding means, in a state in which the one moving body moves up and down by the rotation by the screw shaft a predetermined amount of movement inside of the case portion, said one mobile has moved to upper and lower limit position The case portion is disposed in a downwardly inclined direction away from the center of the width of the case portion, and the longitudinal base end portion is rotatably connected to the moving body via a connecting pin, A suspension point for hanging one of the suspended loads is provided. A pair of left and right first links, and a lower end of the first link, arranged in an upward slope in a direction away from the center of the width of the case portion, and a longitudinal tip portion A pair of left and right pivotally connected to the intermediate portion in the longitudinal direction of the first link via a connecting pin, and a base end portion in the longitudinal direction rotatably connected to the lower portion of the case portion via a connecting pin. a second link, the connection pin flat surface position adjustment lifting jig you wherein Rukoto and a guide groove for guiding the vertical movement of the moving body by sliding.

(3) The arm length of the pair of left and right second links is a reference length, the arm length of the pair of left and right first links is twice the reference length, and the arm length of the first link is 3. The planar position adjuster according to claim 1, wherein a half portion and a tip end portion of a second link located below the first link are rotatably connected by a connecting pin. Hanging jig.
The slide portion is provided on the front side and the rear side of the movable body, and a guide groove for guiding the slide portion is formed at a predetermined position along the vertical direction on the inner surface of the case portion. The planar position adjustment hanging jig according to any one of claims 1 to 3.
The vertical movement / holding means includes a screw shaft extending in the vertical direction, a driving means for rotating the screw shaft, and a nut incorporated in the screw shaft, and the center of the movable body in the front-rear direction. 5. The planar position adjustment suspension according to claim 1, wherein the screw shaft is rotatably passed through a vertical through-hole formed in a portion, and the nut is fixed to the movable body. jig.

  According to the present invention, the distance between the left and right suspension points can be adjusted by the link mechanism in the state where up to three suspended loads W are suspended, and therefore the length of the pair of left and right first links is set to a predetermined value. Thus, the distance between the left and right suspension points can be increased to a desired value. In addition, when using a hanging jig, the width of the hanging jig can be reduced according to the distance between the right and left hanging points in a narrow place where there are interference objects such as structures on the left and right. It is possible to prevent the interference between the structure and the width end portion of the suspension jig, and simultaneously lift and unload up to three suspended loads.

It is a front view which shows the structure of the planar position adjustment hanging jig | tool which concerns on embodiment of this invention. (A) is a perspective view which shows the principal part of the vertical movement / holding means which moves and hold | maintains the moving body used for this invention up and down, (b) is sectional drawing of a moving body. It is a perspective view which shows the usage method of the planar position adjustment hanging jig | tool shown in FIG. (A), (b) is a top view of the temporary placement place of a suspended load, and the top view of the installation place of a suspended load, respectively. It is a front view which shows the state which hung the wire for hanging on a crane hook and suspended one precast pillar material. It is a front view which shows the planar position adjustment hanging jig | tool which has arrange | positioned so that a pair of suspension box body can be moved right and left with respect to the width center of a support beam.

  Hereinafter, a planar position adjusting jig (also simply referred to as a hanging jig) according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing a structure of a hanging jig 1 according to an embodiment of the present invention, and FIG. 2 (a) is a vertical movement / holding that moves and holds a moving body 15 used in the present invention up and down. FIG. 2B is a cross-sectional view of the moving body 15. FIG. 3 is a perspective view showing how to use the hanging jig 1 shown in FIG. 1, 2 (a) and 2 (b) show screw shaft rotating type vertical movement / holding means for moving the left moving body 15 up and down, but the same applies to the right with respect to the center of the width. A moving body having a structure is provided, and vertical movement / holding means for moving the right moving body up and down and holding it is provided inside the case portion 2.

  As shown in FIGS. 1, 2 (a), (b), the hanging jig 1 according to the embodiment of the present invention has a suspended point 5 at the upper end, and the front side and the rear side extending in the vertical direction. And a pair of vertical movements of a method of rotating the screw shaft 13 provided on the left and right with respect to the center of the width of the case part 2. A holding means and a pair of left and right moving bodies 15 that move up and down by a predetermined movement amount S inside the case portion 2 by the pair of up and down movement and holding means are provided. Further, the longitudinal base end portion is rotatably connected to the moving body 15 via the connecting pin 10, and a pair of left and right first ends provided with a suspension point 7 for suspending one suspended load W at the longitudinal end portion. A link mechanism was configured by combining the link 3 and a pair of left and right second links 4 located below the pair of left and right first links 3. In addition, the pair of left and right first links 3 are arranged in a downward slope in a direction away from the center of the width of the case portion 2 in a state where the pair of left and right moving bodies 15 are moved to the upper and lower limit positions when combined. On the other hand, the pair of left and right second links 4 are disposed in an upward slope in a direction away from the center of the width of the case portion 2 to the left and right (see FIG. 1). That is, the longitudinal direction distal end portion of the second link 4 arranged in the upward inclination is pivotally coupled to the longitudinal intermediate portion of the first link 3 via the coupling pin 11, and the longitudinal proximal end portion is It is connected via a connecting pin 12 to the lower part of the case part 2 so as to be rotatable. In this way, the members are connected to each other by the connecting pins 10, 11, and 12 to form a link mechanism. According to such a link mechanism, when the hanging jig is used, the distance between the left and right suspension points can be adjusted, and the vertical movement of the suspended load suspended on the right and left suspension points 7 can be extremely reduced. This will be described later.

  In the case of this embodiment, the vertical movement / holding means is a system in which the screw shaft 13 extending in the vertical direction is rotated by the drive source 14, and the screw shaft 13 and the drive source 14 such as a drive motor or a drive engine for rotating the screw shaft 13 are The pair of left and right moving bodies 15 are supported by a pair of vertical movement / holding means that are supported by the front and rear support members constituting the case portion 2 and provided to the left and right with respect to the width center of the case portion 2. It can be moved up and down by an amount S and held. That is, the link mechanism is a left and right independent drive system.

In FIG. 1, the first and second links 3 and 4 indicated by solid lines are in a state where both the pair of left and right moving bodies 15 are moved to the lower limit position. When the pair of the moving body 15 is moved to the lower limit position, the right and left suspension point interval is a maximum value 2L _2. On the other hand, the first and second links 3 and 4 indicated by the two-dot chain line are in a state when both the pair of left and right moving bodies 15 are moved to the upper limit position. When the pair of the moving body 15 is moved to the upper limit position, the right and left suspension point interval is a minimum value 2L _1. The left and right suspension points 7 are portions where a suspension load hook 9 is provided to be rotatable around a suspension pin so that one suspension load W can be suspended.

  In the case of this embodiment, as shown in FIGS. 2A and 2B, the moving body 15 has a nut 15a, and a screw shaft is inserted into the vertical through-hole formed in the center in the front-rear direction of the moving body 15. 13 is rotatably passed, and the nut 15a is fixed to the center in the front-rear direction of the movable body 15 with its center in the height direction aligned with the core of the connecting pin 10, and the longitudinal base end of the first link 3 is The movable body 15 is attached via the connecting pin 10. As a result, the longitudinal base end portion of the first link 3 rotates around the connecting pin 10 as the nut 15a incorporated in the screw shaft 13 and fixed to the moving body 15 moves up and down. Move up and down with body 15. On the front surface side and the rear surface side of the moving body 15, a slide portion 16 guided by a guide groove 2 a formed on the inner surface of the case portion 2 is provided. On the inner surface of the case portion 2, a guide groove 2a is formed at a predetermined position along the vertical direction (see FIGS. 1 and 2A). The predetermined position where the guide groove 2a is formed is lower than the drive source 14 for rotating the screw shaft 13, and the base end portion in the longitudinal direction of the second link 4 and the lower portion of the case portion 2 can be rotated. The position is higher than the connecting pin 12 to be connected. The guide groove 2a has a role of guiding the moving body 15 provided with the slide portion 16 on the front side and the rear side, a role of preventing the rotation of the moving body 15, and a vertical position of the slide portion 16 as shown in FIG. By making contact with the wall surface of the guide groove 2a shown in (1), a bending moment is prevented from acting on the screw shaft 13, and the screw shaft 13 is kept straight.

  Next, the operation of the hanging jig 1 according to the embodiment of the present invention will be described with reference to FIGS. 1, 2 (a), and (b). When the hanging jig 1 is used, one suspended load W is suspended from the left and right hanging points 7 via the hanging load hooks 9. For this reason, one suspended load W suspended from the left suspension point 7 is connected to the connecting pin 10 that rotatably connects the longitudinal base end of the left first link 3 and the left moving body 15. A moment corresponding to the load acts on the left moving body 15, and an upward force corresponding to the moment acts on the left moving body 15 via the connecting pin 10.

Therefore, by separating the suspension point 7 of the left from the width center of the case portion 2, that hanging process of changing the maximum value L ₂ the distance from the jig width center to the hanging point 7 of the left from the minimum value L ₁ (link opening stroke ), The left moving body 15 is lowered while applying a pressing force to the left moving body 15 by the vertical movement / holding means against the upward force according to the moment. On the other hand, in the process of making the left suspending point 7 approach the center of the width of the case portion 2 and changing the distance from the center of the suspending jig width to the left suspending point 7 to a predetermined value (referred to as the link closing process), it depends on the moment. In order to prevent the left suspending point 7 from exceeding a predetermined value and approaching the center of the width too much due to upward force, the left moving body 15 is given a pressing force by the vertical movement / holding means, The moving body 15 is raised. When the distance from the center of the hanging jig width to the left hanging point 7 is set to a predetermined value, the left moving body 15 is held halfway between the upper limit position and the lower limit position by the vertical movement / holding means. A screw shaft rotation system is suitable for the vertical movement / holding means that exhibits such an action.

The operation of the link mechanism is as follows. That is, in the process of raising the moving body 15 from the lower limit position (link closing process), the longitudinal base end portion of the left first link 3 is attached to the moving body 15 via the connecting pin 10. The first link 3 rotates about the connecting pin 10 counterclockwise. At the same time, the left second link 4 rotates clockwise around the connecting pin 12 that connects the lower portion of the case portion 2 and the longitudinal base end portion of the left second link 4. As a result, the longitudinal base end of the left first link 3 is pulled upward, and the downward inclination angle of the left first link 3 is increased. As a result, the longitudinal tip of the left first link 3 is increased. approaches the jig width central hanging, the distance L from the lifting jig width center to the hanging point 7 of the left is changed from the maximum value L ₂ to a minimum value L _1.

On the contrary, in the process of lowering the moving body 15 from the upper limit position (link opening process), the longitudinal base end portion of the left first link 3 is pushed downward, and the downward inclination angle of the left first link 3 is lowered. There was decreased, the distance L is changed from the minimum value _{L 1} to the maximum value _{L 2.} The distance L is also changed by the same action for the right hanging point 7. At this time, since the link mechanism is a left and right independent drive system, the distance L from the suspension jig width center to the suspension point 7 can be set to different values on the left and right.

Here, as a member which comprises the 1st link 3, as shown to Fig.2 (a), it processes and uses the edge part of U-shaped cross section. On the other hand, as a member constituting the second link 4, an end portion of a steel bar that fits inside a section steel member having a U-shaped cross section is preferably used.
In the hanging jig 1 according to this embodiment, a pair of left and right moving / holding means provided on the left and right with respect to the center of the width of the case portion 2 and a pair of left and right moving up and down within the case portion 2 by a predetermined movement amount S. The left and right independent drive type link mechanism provided with the moving body is used. In this way, the left and right suspension point interval 2L is adjusted in a state where a heavy suspended load is suspended from the left and right suspension points 7, or the distance L from the center of the suspension jig width to the left and right suspension points 7 is different on the left and right. You can

  On the other hand, in order to change the distance L from the center of the suspension jig width to the left and right suspension points 7 in a state where a light suspended load is suspended at the left and right suspension points 7, the case portion 2 can be used instead of the left and right independent drive system. Left and right common drive provided with one vertical movement / holding means provided in the center of the width of the slab and one moving body that moves up and down by a predetermined amount of movement S inside the case portion 2 by the one vertical movement / holding means A link mechanism is used. In response to this, the longitudinally proximal end portions of the pair of left and right first links 3 and one moving body are connected via a connecting pin 10 so as to be rotatable.

According to the hanging jig 1 described above, it can be left and right suspension point interval 2L adjusted in a range from 2L ₁ to 2L _2. In addition, by setting the length of the pair of left and right first links 3 to a predetermined value, the left and right suspension point interval 2L can be expanded to a desired value while the suspended load is suspended from the left and right suspension points 7.
Here, the arm length of the pair of left and right second links 4 (the length from the connecting pin 11 provided at the distal end in the longitudinal direction to the connecting pin 12 provided at the proximal end in the longitudinal direction) is defined as a reference length, The arm length of the first link 3 (the length from the suspending point 7 provided at the distal end in the longitudinal direction to the connecting pin 10 provided at the proximal end in the longitudinal direction) is double the reference length, It is preferable to connect the portion where the arm length of the link is halved and the tip end portion of the second link below the first ring by the connecting pin 11 so as to be rotatable. The reason for this is that when adjusting the left and right suspension point interval 2L, the movement trajectory of the left and right suspension points 7 draws a substantially horizontal straight line, so that the vertical movement of a single suspended load on the left and right suspension points 7 is extremely small. Because you can.

  Further, the slide part 16 is provided on the front side and the rear side of the moving body 15, and the guide groove 2a for guiding the slide part 16 is formed on the inner surface of the case part 2 at a predetermined position along the vertical direction. preferable. The reason for this is that when adjusting the left and right suspension point interval 2L, the friction force applied to the nut 15a by the rotation of the screw shaft 13 adds a force to rotate the moving body 15, but the guide groove 2a for guiding the slide portion 16 This is because the moving body 15 can be prevented from turning, and the moving body 15 provided with the slide portion 16 can be moved up and down stably along the guide groove 2a. At that time, the vertical portion of the slide portion 16 comes into contact with the wall surface of the guide groove 2a shown in FIG. 2A, so that no bending moment acts on the screw shaft 13, and the screw shaft 13 is kept straight. be able to.

  The vertical movement / holding means includes a screw shaft 13 in which a spiral passage 13a for guiding a steel ball is formed on the peripheral surface, a drive source 14 for rotating the screw shaft 13, a screw shaft 13 and a steel shaft. A screw shaft rotating system in which the nut 15a has a ball circulation mechanism and the nut 15a is fixed to the moving body 15. According to this method, the frictional force applied to the nut 15a by the steel ball can be made extremely small, and by rotating the screw shaft 13 at high speed, the left and right suspension point interval 2L can be adjusted quickly, which is preferable. When it is not necessary to rotate the screw shaft 13 at such a high speed, the vertical movement / holding means is screwed with the screw shaft 13 having a male screw formed on the peripheral surface, a drive source 14 for rotating the screw shaft 13, and the male screw. A screw shaft rotation system in which the nut is formed on the movable body. According to the screw shaft rotation method, the pitch between the spiral passages 13a for guiding the steel balls formed on the peripheral surface or the pitch of the male screws formed on the peripheral surface can be adjusted to accurately adjust the left and right suspension point interval 2L. .

  However, the vertical movement / holding means is not limited to the screw shaft rotation method, and may be a jack method or a winch method. The jack system is a system that includes a rod, a jack that raises and lowers the rod, and a moving body 15 fixed to the rod, and moves the moving body 15 fixed to the rod up and down with a jack, instead of the screw shaft rotating system. The winch method is a method that includes a wire, a winch wound with the wire, and a moving body 15 fixed to the wire, and moves the moving body 15 fixed to the wire with the winch up and down instead of the screw shaft rotating method. The jack method or winch method is preferable because the left and right suspension point interval 2L can be quickly adjusted by the jack or winch.

  By the way, the suspension point 6 provided in the center of the width of the lower end portion of the case portion 2 is a case where a suspension jig for suspending up to three suspended loads is used. There is no need. Moreover, when it is set as the hanging jig | tool for 2 pieces or 3 pieces, the weight of the suspended load W suspended at each location may be the same, or may mutually differ. On the other hand, the suspended point 5 provided at the upper end of the case part 2 is a place where, for example, a suspension rod is attached between the front and rear support members, and the crane hook 100 is hung when the suspension jig 1 is used. (See Figure 1).

Next, the usage of the hanging jig 1 will be described with reference to FIGS. 3, 4 (a), and (b).
FIG. 3 is a perspective view showing how to use the hanging jig 1 shown in FIG. 1, FIGS. 4A and 4B are plan views of a temporary placement place of the suspended load W, and an installation place of the suspended load W, respectively. It is a top view. In FIG. 4 (a), the left and right sides of the position where the suspended load W is placed have a structure and the width of the hanging jig 1 must be reduced by adjusting the distance between the left and right hanging points. This is a region where interference occurs between a pair of left and right first links 3 and a structure. On the other hand, in FIG. 4 (b), the left and right suspension point interval 2L ₂ of the suspended load W at the installation site, showed wider than the left and right suspension point interval 2L ₁ of temporary location.

The vertical movement and holding means for only and held by vertically moving the mobile predetermined movement amount S, by the left and right suspension point interval and 2L ₁ in temporary locations, can reduce the width of the hanging jig 1, hanging jig Up to three suspended loads W can be lifted at the same time without causing interference between the width end of the tool 1 and the structures on the left and right of the temporary place. Thereafter, in the state where three suspended loads W are suspended, the suspended load W suspended at the installation location can be lowered by setting the distance between the left and right suspension points to 2L ₂ by the vertical movement / holding means.

  A suspension jig that can adjust the distance between the left and right suspension points in the range of 3000 to 15000 mm in a state where up to three precast column members are suspended was designed and manufactured. In this case, when the height of the hanging jig is 8500 mm and the length of the pair of left and right first links 3 is set to a predetermined value, the link mechanism can change the distance between the left and right hanging points within the above range. The width of the hanging jig itself was reduced to about 3000 mm according to the distance between the left and right hanging points by the link mechanism. According to this hanging jig, when constructing a structure, by lifting the suspended load arranged in a temporary place at a predetermined left and right hanging point interval via a crane hook, and then adjusting the left and right hanging point interval, It can be used for transportation work that is arranged at intervals of left and right suspension points different from the temporary placement place and lowered to the installation place, the number of times of transportation by the crane can be reduced, and the work time by the crane can be shortened sufficiently. Also, when disassembling a structure, lifting a suspended load arranged at a predetermined left and right suspension point interval via a crane hook at the dismantling location, and then adjusting the left and right suspension point intervals, The same effect can be expected when used for transporting work arranged at point intervals and lowered to a temporary place.

L Distance from the center of the hanging jig width to the left and right hanging points (L ₁ ≦ L ≦ L ₂ )
2L Left and right suspension point interval (2L ₁ ≤ 2L ≤ 2L ₂ )
W Suspended load S Travel distance 1, 20 Planar position adjustment jig 2 Case part
2a Guide groove 3 First link 4 Second link 5 Suspended points 6, 7 Suspended points 8, 9 Hang for suspended loads
10, 11, 12 Connecting pin
13 Screw shaft
13a Spiral passage
14 Driving source
15 mobile
15a nut
16 Slide part
21 Support beam
22 Hanging box body
23 Hang hook
24 Screw shaft
25 Driving source
26 Battery box
100 crane hook
100a sling wire

Claims (5)

In a state where a plurality of suspended loads are hung, a plane position adjustment hanging jig capable of adjusting the distance between the left and right hanging points by a link mechanism of a left and right independent drive system,
A case part composed of front and rear support members having a suspended point that engages with a crane hook at the upper end part and extending in the vertical direction;
A pair of vertical movement / holding means provided on the left and right with respect to the center of the width of the case part, and the pair of vertical movement / holding means A pair of left and right moving bodies that move up and down by rotation of the screw shaft by a predetermined amount of movement;
With the pair of left and right moving bodies moved to the upper and lower limit positions, the case body is disposed in a downward slope in a direction away from the center of the width of the case portion, and the longitudinal base end portion is rotatable. A pair of left and right first links that are connected to the body via a connecting pin, and provided with a suspension point that suspends one of the suspended loads at the longitudinal end;
The longitudinal direction of the first link is lower than the first link and is inclined upward in a direction away from the center of the width of the case portion and left and right, and the longitudinal tip is rotatable. A pair of left and right second links connected to the middle part via a connection pin, and connected to the lower part of the case part via a connection pin so that the longitudinal base end part is rotatable;
A drive source disposed at an upper end of the screw shaft for rotating the guide shaft, a guide groove for sliding the connecting pin to guide the vertical movement of the movable body,
A planar position adjusting jig characterized by comprising: In a state where a plurality of suspended loads are hung, a planar position adjustment hanging jig capable of adjusting the distance between the left and right hanging points by a link mechanism of the left and right common drive system,
A case portion having a suspended point that engages with a crane hook at the upper end portion and configured by front and rear support members extending in the vertical direction;
Vertical movement and a pair of vertically moving and holding means provided on the left and right with respect to the width center of the case portion by the pair of vertical movement and holding means, by rotation by the screw shaft a predetermined amount of movement inside of the case portion One moving body to do ,
In a state where the one moving body is moved to the upper / lower limit position, the moving body is disposed so as to be inclined downward in a direction away from the center of the width of the case portion and the base end portion in the longitudinal direction is rotatable. A pair of left and right first links provided with a suspension point for suspending one of the suspended loads at the longitudinal tip portion,
The longitudinal direction of the first link is lower than the first link and is inclined upward in a direction away from the center of the width of the case portion and left and right, and the longitudinal tip is rotatable. A pair of left and right second links connected to the middle part via a connection pin, and connected to the lower part of the case part via a connection pin so that the longitudinal base end part is rotatable;
A guide groove for sliding the connecting pin to guide the vertical movement of the movable body;
Flat surface position adjustment lifting jig wherein Rukoto equipped with.   The arm length of the pair of left and right second links is the reference length, the arm length of the pair of left and right first links is twice the reference length, and the arm length of the first link is halved. The planar position adjusting jig according to claim 1 or 2, wherein the portion and the tip end portion of the second link located below the first link are connected by a connecting pin so as to be rotatable. .   Slide parts are provided on the front side and the rear side of the movable body, and guide grooves for guiding the slide parts are formed at predetermined positions along the vertical direction on the inner surface of the case part. The planar position adjustment hanging jig according to any one of claims 1 to 3.   The vertical movement / holding means has a screw shaft extending in the vertical direction, a driving means for rotating the screw shaft, and a nut incorporated in the screw shaft, and is formed at the center in the front-rear direction of the moving body. The planar position adjustment jig according to any one of claims 1 to 4, wherein the screw shaft is rotatably passed through the vertical through hole formed, and the nut is fixed to the movable body.

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