JP2015140232A - Hanger and method for hanging building material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a lengthy building material to be efficiently carried without being damaged.SOLUTION: A hanger 10, used for hanging up a plurality of H shaped steels 1 in an arrayed state by a crane, comprises: a plate-shaped base portion 20 that is hung up in a horizontal attitude by the crane; and fixed portions 32 and rotating portions 34 that are arranged on a bottom face of the base portion 20 and hooks and holds the H-shaped steels 1 from one sides and the other sides in a width direction thereof. The rotating portions 34 are provided rotatably around a rotating shaft extending downward from the base portion 20, the rotating portions 34 are rotated so that the fixed portions 32 and the rotating portions 34 are changed into a holding state of holding the H-shaped steels 1 and a non-holding state of not holding the H-shaped steels 1.

Description

  The present invention relates to a hanging jig used for lifting a long building material and a method for lifting a long building material.

  As a lifting jig used to lift long building materials such as steel frames, a pair of clamps with insertion grooves into which H-shaped steel flanges are inserted are joined by magnets with the insertion grooves facing each other. Is known (for example, see Patent Document 1). This hanging jig can be removed from the H-section steel by releasing the joining of the pair of clamping tools by the magnet.

JP 2005-298135 A

  When the H-shaped steel is lifted and transported using the lifting jig described in Patent Document 1, only one H-shaped steel can be lifted and transported one by one, so the time required for transporting the H-shaped steel is long. Become. Although it is conceivable to suspend a plurality of H-section steels from a common suspension jig using a sling-hanging clamp, the slant-hanging clamp damages the H-section steel.

  This invention is made | formed in view of the said situation, and makes it a subject to enable it to convey a long building material efficiently, without giving a damage | wound.

  In order to solve the above-mentioned problems, a lifting jig according to the present invention is a hanging jig used for lifting a plurality of long building materials in a parallel state by a lifting device, wherein the lifting device A flat base that is suspended in a horizontal posture, and a first and a second holder that are arranged on the bottom surface side of the base and hold the building material from one side and the other side in the width direction. At least one of the first and second holders is provided to be rotatable around a rotation axis extending downward from the base, and the first and the second are provided by rotating the holder. The second holding tool changes between a holding state in which the building material is held and a non-holding state in which the building material is not held.

  In the hanging jig, at least one of the first and second holding tools may be configured to hook and hold the building materials on both sides thereof, and the holding tools may be provided to be rotatable around the rotation shaft. Good.

  Further, the method for lifting a building material according to the present invention is a method for lifting a plurality of long building materials using a lifting jig in a state in which a plurality of long building materials are arranged in parallel. A flat base that is lifted in a horizontal posture by the lifting device, and a first base and a second base that are arranged on the bottom surface side of the base and hook and hold the building material from one side and the other side in the width direction. And at least one of the first and second holders is rotatably provided around a rotation shaft extending downward from the base, and by rotating the holder, the first The first and second holding tools are changed between a holding state in which the building material is held and a non-holding state in which the building material is not held.

  According to the present invention, a long building material can be efficiently conveyed without being damaged.

It is a perspective view which shows the hanging jig which concerns on one Embodiment. It is a bottom view which shows the hanging jig which concerns on one Embodiment. It is a side view showing a hanging jig concerning one embodiment. It is a side view which shows the procedure which lifts several H-section steel using a hanging jig. It is a side view which shows the procedure which lifts several H-section steel using a hanging jig. It is a side view which shows the procedure which lifts several H-section steel using a hanging jig. It is a side view which shows the procedure which lifts several H-section steel using a hanging jig. It is a side view which shows the procedure which removes several H-section steel from a hanging jig. It is a side view which shows the procedure which removes several H-section steel from a hanging jig. It is a side view which expands and shows the hanging jig which concerns on other embodiment. It is a bottom view which shows the hanging jig which concerns on other embodiment. It is a side view which shows the hanging jig which concerns on other embodiment. It is a side view which shows the hanging jig which concerns on other embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a hanging jig 10 according to an embodiment, FIG. 2 is a bottom view showing the hanging jig 10, and FIG. 3 is a side view showing the hanging jig 10. As shown in these drawings, the lifting jig 10 is a jig used for lifting a plurality of H-section steels 1 with a lifting device such as a crane.

  The hanging jig 10 includes a flat plate-like base portion 20 to which the staking wire 2 is attached, and a holding portion 30 that is provided on the bottom side of the base portion 20 and holds a plurality of H-shaped steels 1 in parallel. ing. The base 20 includes a pair of long steel plates 22 arranged in parallel, and three pieces that are arranged in parallel to each other and are orthogonal to the pair of steel plates 22 and connect both ends in the longitudinal direction and the center of the pair of steel plates 22. And a long steel plate 24. A pair of suspension pieces 26 are attached to the upper surface of the middle steel plate 24 among the three steel plates 24. The pair of hanging pieces 26 are arranged at positions where the distances from the central portion in the longitudinal direction of the middle steel plate 24 are equal to each other, and the wire 2 is attached to these via a shackle.

  The holding part 30 is provided with a total of four fixing parts 32 for two groups, and a total of six rotating parts (second holding tools) 34 for three sets. Each set of fixing portions 32 is a steel material bent in a U-shape, and is fixed to both longitudinal ends of the lower surface of the steel plate 22. Each fixing portion 32 has an upper piece 32 </ b> A fixed to the lower surface of the steel plate 22 with a bolt or the like so as to have a U shape or an inverted U shape when viewed in the longitudinal direction of the steel plate 24.

  The rotating parts 34 of each set are arranged at equal intervals between the fixing parts 32 on both sides. Each rotating portion 34 includes a rotating plate 34A that is a rectangular steel plate, a rotating rod 34B coupled to the center of the rotating plate 34A, and a rotation preventing portion 36 that prevents the rotating portion 34 from rotating. The steel plate 22 has a hole 22 </ b> A through which the rotating rod 34 </ b> B is inserted, and the rotating rod 34 </ b> B penetrates the steel plate 22. Further, a diameter-expanded portion 34C having an enlarged diameter is formed at an intermediate portion in the axial direction of the rotating rod 34B, and the diameter-expanded portion 34C is in contact with the lower surface of the steel plate 22. Further, a threaded portion 34D is formed on the distal end side of the enlarged diameter portion 34C of the rotating rod 34B, and the threaded portion 34D protrudes from the upper surface of the steel plate 22. In the present embodiment, the fixing portion 32 corresponds to the first holder, and the outer rotating portion 34 corresponds to the second holder. The middle rotating part 34 corresponds to the first holding tool, and the second holding tool corresponding thereto is the outer rotating part 34.

  The anti-rotation portion 36 includes a pair of nuts 36 </ b> A and 36 </ b> B that constitute a double nut, and these are screwed into the screw portion 34 </ b> D on the upper side of the steel plate 22. For this reason, the nuts 36A and 36B are tightened in a state where the steel plate 22 is sandwiched between the lower nut 36A and the enlarged diameter portion 34C, thereby preventing the rotating rod 34B from rotating and the nut 36A due to the double nut effect. 36B is prevented from loosening. On the other hand, the rotation of the rotating rod 34B is allowed by loosening the tightening of the nuts 36A and 36B.

  The height of the rotary plate 34A and the lower piece 32B of the fixed portion 32 are the same. Here, in a state where the long side of the outer rotating plate 34A is parallel to the longitudinal direction of the steel plate 22, the web of the H-section steel 1 is interposed between the rotating plate 34A and the piece 32B of the fixed portion 32. A gap larger than the thickness of 1A and smaller than the width of the flange 1B of the H-section steel 1, that is, a gap where the web 1A enters but cannot pass through the flange 1B is formed. Therefore, in this state (hereinafter, referred to as a holding state), the outer H-section steel 1 is such that the web 1A is positioned between the outer rotating plate 34A and the piece 32B of the fixed portion 32, and the upper flange 1B is the outer side. By riding on the rotating plate 34 </ b> A and the piece 32 </ b> B of the fixed portion 32, the H-section steel 1 is held by the fixed portion 32 and the outer rotating portion 34.

  Further, in the state where the middle rotating plate 34A and the rotating plates 34A on both sides are parallel to the longitudinal direction of the steel plate 22, the middle rotating plate 34A and the rotating plates 34A on both sides A gap that is larger than the thickness of the web 1A of the H-section steel 1 and smaller than the width of the flange 1B of the H-section steel 1 is formed. Therefore, in this state (hereinafter referred to as a holding state), the inner H-section steel 1 is positioned between the outer rotating plate 34A and the middle rotating plate 34A of the web 1A, and the upper flange 1B is rotated outward. By riding on the plate 34A and the middle rotating plate 34A, the H-shaped steel 1 is held by the outer rotating portion 34 and the middle rotating portion 34.

  On the other hand, in a state where the long side of the outer rotating plate 34A is orthogonal to the longitudinal direction of the steel plate 22 (hereinafter referred to as a non-holding state), between the rotating plate 34A and the piece 32B of the fixed portion 32, A gap larger than the width of the flange 1B of the H-section steel 1, that is, a gap through which the flange 1B of the H-section steel 1 can pass is formed. Further, in a state where at least one long side of the outer rotating plate 34A and the middle rotating plate 34A is orthogonal to the longitudinal direction of the steel plate 22 (hereinafter referred to as a non-holding state), the outer rotating plate 34A and the middle rotating plate 34A A gap larger than the width of the flange 1B of the H-section steel 1, that is, a gap through which the flange 1B of the H-section steel 1 can pass is formed between the rotating plate 34A.

  4 to 7 are side views showing a procedure for lifting a plurality of H-section steels 1 using a lifting jig 10. First, as shown in FIG. 4, a plurality of H-section steels 1 are arranged at predetermined intervals in parallel to the ground surface or the floor surface. Next, as shown in FIG. All the rotating parts 34 are put in a non-holding state and placed on the plurality of H-section steels 1. At this time, the web 1A of the outer H-section steel 1 is positioned between the piece 32B of the fixed portion 32 and the outer rotary plate 34A, and the web 1A of the inner H-section steel 1 is positioned between the outer rotary plate 34A and the inner rotary plate 34A. The relative position of the hanging jig 10 and the H-section steel 1 is adjusted so as to be positioned between the rotating plate 34A.

  Next, as shown in FIG. 6, the rotating portion 34 is rotated from the non-holding state to the holding state, and the nuts 36A and 36B are tightened. At this time, first, the lower nut 36A is tightened, then the upper nut 36B is tightened, and finally, the lower nut 36A is reversely rotated. As a result, the rotating rod 34B is prevented from rotating by the tightening force of the nuts 36A and 36B, and the looseness of the nuts 36A and 36B is prevented by the effect of the double nuts of the nuts 36A and 36B.

  Then, as shown in FIG. 7, the lifting jig 10 is lifted through the wire 2 by a crane or the like. At this time, the upper flange 1B of the outer H-section steel 1 rides on the piece 32B of the fixed portion 32 and the outer rotation plate 34A, and the upper flange 1B of the inner H-section steel 1 is the outer rotation plate 34A. And the relative position of the hanging jig 10 and the H-section steel 1 is adjusted so as to ride on the rotating plate 34A in the middle. Thereby, the multiple H-section steel 1 is lifted by the crane or the like via the lifting jig 10 and the wire 2.

  FIGS. 8 and 9 are side views showing a procedure for removing the plurality of H-section steels 1 from the hanging jig 10. First, as shown in FIG. 8, after the plurality of H-section steels 1 are lowered to the ground or floor, the nuts 36A and 36B are loosened, and the rotating portion 34 is rotated from the holding state to the non-holding state. Next, as shown in FIG. 9, the upper flange 1 </ b> B of the outer H-section steel 1 is positioned between the piece 32 </ b> B of the fixing portion 32 and the outer rotary plate 34 </ b> A, and the upper side of the inner H-section steel 1. After adjusting the relative position of the hanging jig 10 and the H-shaped steel 1 so that the flange 1B is positioned between the outer rotating plate 34A and the middle rotating plate 34A, the lifting jig 10 is raised. Let As described above, a plurality of H-section steels 1 are removed from the hanging jig 10 and placed on the ground or floor.

  As described above, the hanging jig 10 according to the present embodiment is disposed on the flat plate-like base 20 that is lifted in a horizontal posture by a crane and the bottom side of the base 20, and the H-section steel 1 is arranged in the width direction. A fixed portion 32 and a rotating portion 34 that are hooked and held from one side and the other side are provided. Here, the rotating part 34 is provided so as to be rotatable around a rotating shaft extending downward from the base part 20, and the rotating part 34 is rotated so that the fixed part 32 and the rotating part 34 become the H-section steel 1. It changes to the holding state which hold | maintains, and the non-holding state which does not hold | maintain H-section steel 1.

  As a result, a plurality of H-section steels 1 are hung from the ground or the floor surface in a state where they are hooked using the suspension jig 10, and a plurality of H-section steels 1 lowered from the ground or the floor surface are suspended. 10 can be removed. Therefore, the H-section steel 1 can be lifted without scratching. In addition, since a plurality of H-section steels 1 can be transported simultaneously, the H-section steel 1 can be transported efficiently, and the time required for transporting the H-section steel 1 can be shortened.

  Moreover, the rotation part 34 hooks and holds the H-section steel 1 on both sides thereof, and rotates the one rotation section 34, thereby bringing the H-section steel 1 on both sides into a holding state and a non-holding state. Can be changed. Therefore, the workability of the work of attaching / detaching the plurality of H-section steels 1 to / from the hanging jig 10 can be improved.

  FIG. 10 is an enlarged side view showing a hanging jig 100 according to another embodiment. As shown in this figure, the hanging jig 100 according to the present embodiment includes a rotation preventing portion 136 that prevents the rotation portion 134 from rotating. The anti-rotation part 136 includes a pipe 136A fitted into the hole 22A of the steel plate 22 and welded to the hole wall, and a pin 136B inserted through the pipe 136A and the rotating rod 134B.

  The tube 136A and the rotating rod 134B protrude from the upper surface of the steel plate 22, and holes 136C and 134D through which the pins 136B are inserted are formed in the protruding portions of the tube 136A and the rotating rod 134B. Further, an enlarged diameter portion 134C is formed at the upper end and the axially intermediate portion of the rotating rod 134B, and the upper and lower enlarged diameter portions 134C sandwich the pipe 136A vertically.

  Here, in a state where the long side of the rotating plate 134A is parallel to the longitudinal direction of the steel plate 22 (hereinafter referred to as a holding state), the positions of the rotating portion 134 in the rotating direction of the hole 136C and the hole 134D coincide. The pin 136B can be inserted into the holes 136C and 134D, and the rotating part 134 is prevented from rotating at the position of the holding state by the pin 136B. On the other hand, in a state where the pin 136B is pulled out from the holes 136C and 134D, the rotating unit 134 can rotate from the holding state to the non-holding position.

  FIG. 11 is a bottom view showing a hanging jig 200 according to another embodiment, and FIG. 12 is a side view showing the hanging jig 200. As shown in these drawings, the hanging jig 200 according to the present embodiment includes a rotation preventing portion 236 that prevents the rotation portion 234 from rotating. The anti-rotation part 236 is fixed to a pair of rotating parts 234 arranged in the longitudinal direction of the steel plate 24 with three bars 236A arranged in parallel with the steel plate 24 and both longitudinal ends of each bar 236A. A total of six clamps 236B are provided in two sets.

  The rod 236A is fixed to the steel plate 234A or the rotating rod 234B by clamps 236B at both ends in the longitudinal direction. Thereby, the rotation part 234 is prevented from rotating. On the other hand, in a state where the bar 236A is detached from the steel plate 234A or the rotating bar 234B, the rotating unit 234 can rotate.

  FIG. 13 is a side view showing a hanging jig 300 according to another embodiment. As shown in this figure, the hanging jig 300 according to the present embodiment has a configuration in which the middle rotating portion 34 of the hanging jig 10 according to the above-described embodiment is replaced with a pair of fixed portions 332. The fixing part 332 is a steel material bent in a U shape like the fixing part 32, and is fixed to both longitudinal ends of the lower surface of the steel plate 22. Each fixing portion 332 has a U-shape or an inverted U-shape when viewed in the longitudinal direction of the steel plate 24, and the upper and lower pieces 332A and 332B extend outward from the pieces 332C therebetween. The piece 332A is fixed to the lower surface of the steel plate 22 with a bolt or the like.

  Here, in a state where the long side of the rotating plate 34A is parallel to the longitudinal direction of the steel plate 22 (hereinafter referred to as a holding state), the rotating plate 34A and the lower piece 332B below the fixed portion 332 are interposed. Is larger than the thickness of the web 1A of the H-section steel 1 and smaller than the width of the flange 1B of the H-section steel 1. Accordingly, in this state, the inner H-shaped steel 1 is such that the web 1A is positioned between the rotating plate 34A and the piece 332B of the fixed portion 332, and the upper flange 1B is connected to the rotating plate 34A and the piece 32B of the fixed portion 332. The H-section steel 1 is held by the fixed portion 332 and the rotating portion 34.

  On the other hand, in a state where the long side of the outer rotating plate 34A is orthogonal to the longitudinal direction of the steel plate 22 (hereinafter referred to as a non-holding state), between the rotating plate 34A and the piece 332B of the fixed portion 332, A gap larger than the width of the flange 1B of the inner H-section steel 1, that is, a gap through which the flange 1B of the H-section steel 1 can pass is formed. Accordingly, in this state, the inner H-section steel 1 can be lowered from the rotating portion 34 and the fixed portion 332 to the ground or floor surface.

  In addition, the above-mentioned embodiment is for making an understanding of this invention easy, and does not limit this invention. It goes without saying that the present invention can be changed and improved without departing from the gist thereof, and that the present invention includes equivalents thereof. For example, in the above-described embodiment, the outer H-section steel 1 is configured to be hooked and held by the fixed portion 32 and the rotating portion 34, but the fixed portion 32 is configured to be rotatable like the rotating portion 34. May be.

  In the above-described embodiment, the present invention has been described by taking the H-shaped steel 1 as an example of a long building material. However, as a long building material, a square steel pipe, a round steel pipe, a long wood, and the like are also included. Can be mentioned. Here, when these building materials are lifted using the lifting jig 10, the lower piece 32B of the fixed portion 32 and the rotating plate 34A may be hooked on the bottom surface of the building material.

1 H section steel, 1A web, 1B flange, 2 wires, 10 suspension jig, 20 base, 22 steel plate, 22A hole, 24 steel plate, 26 suspension piece, 30 holding portion, 32 fixing portion, 32A, 32B piece, 34 rotation Part, 34A rotating plate, 34B rotating rod, 34C enlarged diameter part, 34D screw part, 36 non-rotating part, 36A, 36B nut, 100 hanging jig, 134 rotating part, 134A rotating plate, 134B rotating rod, 134C enlarged diameter part , 134D hole, 136 non-rotating part, 136A tube, 136B pin, 136C hole, 200 hanging jig, 234 rotating part, 234A steel plate, 234B rotating rod, 236 non-rotating part, 236A bar, 236B clamp, 300 hanging jig 332 fixed part, 332A, 332B, 332C piece

Claims (3)

A lifting jig used to lift a plurality of long building materials in parallel with a lifting device,
A flat base that is lifted in a horizontal posture by the lifting device;
It is arranged on the bottom side of the base, and includes first and second holders that hold the building material from one side and the other side in the width direction.
At least one of the first and second holders is rotatably provided around a rotation shaft extending downward from the base, and the first and second are rotated by rotating the holder. The holding jig changes between a holding state in which the building material is held and a non-holding state in which the building material is not held.   The at least one of said 1st and said 2nd holders hooks and holds said building materials of the both sides, The said holders are provided so that rotation around the said rotating shaft is possible. Hanging jig. It is a method of lifting using a lifting jig by a lifting device in a state where a plurality of long building materials are arranged in parallel,
The lifting jig is
A flat base that is lifted in a horizontal posture by the lifting device;
It is arranged on the bottom side of the base, and includes first and second holders that hold the building material from one side and the other side in the width direction.
At least one of the first and second holders is rotatably provided around a rotation axis extending downward from the base portion,
A method for lifting a building material, wherein the first and second holding tools are changed between a holding state in which the building material is held and a non-holding state in which the building material is not held by rotating the holding tool.

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