JP4190437B2 - Suspension bracket, lifting method using the same - Google Patents

Description

  The present invention relates to a hanging metal fitting and a lifting method using the same.

  Unit buildings, known as a method for industrial production of houses, require building units to be lifted in order to build the building units that make up the factory and transport them to the construction site before installing them on the foundation. Become.

  If the building unit has a steel frame consisting of columns and beams, a back nut is welded to the column lid provided at the upper end of the column, and a suspension bolt is screwed into this back nut to lift and unload it. The hanger bolt was removed after.

  Further, in the case of a wooden building unit by a wall-type construction method, a hanging bolt locking hardware that is fixedly mounted in a building unit and that locks a hanging bolt used when lifting the building unit is known ( Patent Document 1). The suspension bolt locking hardware includes a nut (female screw portion) for fixing the suspension bolt, and a frame body for mounting and fixing the nut (female screw portion) to the building unit.

Japanese Patent Laid-Open No. 5-321352

However, in the steel frame building unit, it takes time to weld the back nut to the column cover in advance, and the back nut is not used after the lifting work. Furthermore, there is a problem that it takes time to attach and remove the suspension bolt before and after the lifting work.
Further, in the case of a wooden building unit by the wall type construction method as described in Patent Document 1, there is a problem similar to the above. That is, it takes a lot of time to attach and fix the hanging bolt locking hardware in advance between the vertical frames of the building unit, and after the lifting work, the hanging bolt locking hardware is not used because it is not used. In addition, there is a problem that it takes time to attach and remove the suspension bolt before and after the lifting work.

  The present invention has been made in order to solve the above-mentioned problems. The object of the present invention is to save the labor of mounting the female screw part (nuts etc.) for suspension bolts and waste of parts, before and after the lifting work. It is an object of the present invention to provide a hanging bracket and a lifting method using the same, which do not require attachment and removal work of the suspension bolt and are excellent in workability.

The invention according to claim 1 is a hanging metal fitting attached to a member to be lifted, comprising a locking means and a slide control means such as a pin coupling means, and superimposing the hanging metal fitting on a portion to be attached to the lifted member. In one state in which the hanging bracket is slid with respect to the mounted portion, the locking means can be locked to the mounted portion, and the slide control means such as the pin coupling means is displaced from the sliding position of the hanging bracket. In the other state in which the hanging bracket is slid with respect to the mounted portion, the locking means is locked with the mounted portion. The stop state and the locking means can be switched from the attached portion to a detached state in which the hanging bracket is separated from the attached portion.
The slide control means may be a pin coupling means such as a pin or a bolt inserted into the pin hole provided in the hanging bracket and the pin hole provided in the attached part, or the hook of the attached part inserted through the locking means. The restraining member may be taken in and out of the gap in which the holes remain.
The pin coupling means may be prevented from falling off so that the pin does not fall off in the locked state. The suspension fitting may have a female thread portion to which the suspension bolt is screwed, and may be made to be in a drop-off prevention state by adjusting the screw-in dimension of the suspension bolt, or may be in a drop-off prevention state regardless of the suspension bolt. You may do it. Moreover, you may lift a hanging metal fitting with a hook, without using a hanging bolt.

The invention according to claim 2 is a hanging bracket that is provided with a planar mounting portion in which a hanging hole and a pin hole are formed on a plate surface, and is attached to a lifting member having a gap on the back surface side,
A main body having a mounting surface overlaid on the mounted portion and a female screw portion to which a suspension bolt is screwed, and the mounting surface is provided with a tip portion protruding in a bowl shape; A hook portion that is inserted into the hook hole, and a pin that protrudes slidably and is inserted into the pin hole, and when the pin is inserted into the pin hole, the hook portion is a rear side edge of the hook hole. It is characterized in that it can be locked to.

  According to a third aspect of the present invention, in the suspension fitting according to the second aspect, the female screw portion is provided at a position where one end of the pin can be pressed by a tip end of a shaft portion of a suspension bolt protruding from the female screw portion. It is characterized by being.

The invention according to claim 4 is a hanging bracket that is attached to a lifting member having a planar mounting portion in which a hanging hole and a pin hole are formed on a plate surface, and having a gap on the back surface side,
A main body plate portion having a mounting surface overlaid on the mounted portion and a female screw portion through which a suspension bolt is screwed and penetrated, and the front end portion of the mounting surface protrudes in a bowl shape A hanging portion to be inserted into the hanging hole, the hanging portion is inserted into the hanging hole, and the hanging portion is inserted into the pin hole with the hanging portion being inserted into the pin hole. It is characterized by being able to be locked to the back side edge.

The invention according to claim 5 is a lifting method using the hanging bracket according to claim 2, claim 3 or claim 4,
Insert the hanging part into the hanging hole, overlay the mounting surface of the main body part with the mounted part of the lifted member, slide the pin along the plate surface of the mounted part in the direction approaching the pin hole, and pin the pin hole In the state of being inserted into the hook, the hanging portion is engaged with the rear edge of the hanging hole to attach the hanging metal fitting, and the pin moves the upper limit of movement of the pin by the tip of the shaft portion of the hanging bolt screwed to the female screw portion. The lifted member is lifted by restraining it within a range that does not come off.
According to a sixth aspect of the present invention, the body plate portion is slid in the direction in which the shaft portion tip of the suspension bolt screwed to the female screw portion along the plate surface of the attached portion approaches the pin hole, and the hook portion is hooked. Attach to the rear edge of the bracket and attach the hanging bracket, screw it into the female thread, fix the shaft tip of the penetrating suspension bolt into the pin hole and secure it so that it will not come off, and lift the suspended member It is characterized by that.

The invention according to claim 7 is a hanging metal fitting which is provided with a planar attached portion in which a hanging hole is formed on a plate surface, and which is attached to a raised member having a gap portion on the back surface side.
The main body plate portion is composed of a hanging portion, a main body plate portion, and a hanging portion. The main body plate portion has a mounting surface that is superimposed on the attached portion, and a shaft portion of the hanging portion that is screwed to the nut portion of the hanging portion. The mounting surface is provided with a protrusion protruding in the direction of the hanging hole, and the protruding portion of the plate is inserted into the hanging hole, and the hanging portion is on the back side edge of the hanging hole. It is characterized by being able to be locked.

(Function)
According to the hanging metal fitting of the present invention described in claim 1, the following effects (1) to (4) are obtained.
(1) When the hanging bracket is overlapped with the mounted portion of the lifted member and the hanging bracket is slid with respect to the mounted portion, and in one slid state (engaged state), it is locked to the mounted portion. Since it has possible locking means, it is easy to install.
(2) Since slide control means such as pin coupling means for preventing displacement from the slid position is provided, it is safe without being accidentally disconnected in the locked state.
(3) When removing, release the slide control means such as the pin coupling means, release it, slide the hanging bracket in the opposite direction, and put it in the other state (detachable state), and then remove it easily Can do.
(4) Since the hanging bracket can be attached / detached with the hanging bolt attached, the troublesome work of attaching and removing the hanging bolt is not required before and after the lifting work, and the workability is excellent.

According to the hanging metal fitting of the present invention according to claim 2 and the lifting method according to claim 5 using the same, the following effects (1) to (5) are obtained.
(1) Since the main body part has a female thread part to which the suspension bolt is screwed, it is possible to save the labor and parts for attaching the female thread part for fixing the suspension bolt to the lifted member in advance. it can.
(2) Insert the hook provided on the mounting surface of the main unit into the mounting hole, overlap the mounting surface of the main unit with the mounted part, and the pin is a pin hole along the plate surface of the mounted unit. If it slides in the direction approaching, the hooking part is locked to the rear side edge part of the hooking hole, so that attachment is easy.
(3) At this time, since the pin is inserted into the pin hole, the displacement from the slide position is prevented, and the hanging metal fitting is not accidentally detached and is safe.
(4) When removing, simply remove the pin from the pin hole and slide it in the opposite direction when attaching the hanging bracket.
(5) Since the hanging bracket can be attached / detached with the hanging bolt attached to the female screw part, the troublesome work of installing and removing the hanging bolt is not required before and after the lifting work, and the workability is excellent.

According to the hanging metal fitting of the present invention described in claim 3 and the lifting method described in claim 5 using the same, there are the following actions.
When the suspension bracket is attached, the upper end of the pin movement is restricted to the extent that the pin cannot be removed from the pin hole by the shaft end of the suspension bolt screwed into the female screw part. It will not come off and it is safer.

According to the hanging metal fitting of the present invention according to claim 4 and the lifting method according to claim 5 using the same, the following effects (1) to (6) are obtained.
(1) Since the main body plate portion has a female screw portion to which the suspension bolt is screwed, it is possible to eliminate the trouble of attaching the female screw portion for fixing the suspension bolt to the lifted member in advance and waste of parts. Can do.
(2) Insert the hanging part provided on the mounting surface of the main body plate part into the hanging hole of the mounted part, overlap the mounting surface of the main body plate part with the mounted part, and hang along the plate surface of the mounted part If the bolt tip slides in a direction approaching the pin hole, the hooking portion is locked to the rear edge of the hooking hole, so that attachment is easy.
(3) At this time, since the tip of the suspension bolt is inserted into the pin hole, the displacement from the slide position is prevented, and the suspension fitting is not accidentally detached and is safe.
(4) When removing, remove the tip of the suspension bolt from the pin hole and slide it in the opposite direction.
(5) Since the hanging bracket can be attached / detached with the hanging bolt attached to the female screw part, the troublesome work of installing and removing the hanging bolt is not required before and after the lifting work, and the workability is excellent.
(6) When the suspension bracket is attached, the upper limit of the movement of the pin is constrained to the extent that the pin cannot be removed from the pin hole by the tip of the suspension bolt screwed into the female thread. Will never go out of the way, and it is safer.

The hanging bracket of the present invention according to claim 7 has the following actions (1) to (5).
(1) Consists of a hanging part, a main body plate part, and a hanging part, and the shaft part of the hanging part is screwed to the nut part of the hanging part. And waste of parts can be eliminated.
(2) The shaft part passes through the through hole of the main body plate part, and the hanging part screwed into the nut part of the hanging part is inserted into the hanging hole of the attached part and hung along the plate surface of the attached part. If the front end of the collar part slides away from the hooking hole, the hooking part is locked to the edge on the back surface side of the hooking hole, so that attachment is easy.
(3) At this time, since the protruding portion is inserted into the hooking hole, the shift from the slide position is prevented, and the hanging metal fitting is not accidentally detached and is safe.
(4) When removing, it can be easily removed by removing the protrusion from the hook and sliding it in the opposite direction.
(5) Since the hanging bracket can be attached and detached with the hanging part attached to the hanging part, the troublesome work of attaching and removing the hanging part is not required before and after the lifting work, and the workability is excellent.

According to the hanging bracket of the present invention as set forth in claims 1 and 2, the following effects (1) to (5) are obtained.
(1) It is possible to save labor and parts for attaching the female screw portion to the lifted member in advance.
(2) Easy to install.
(3) It is safe and will not come off unexpectedly.
(4) Easy to remove.
(5) There is no need for troublesome work of installing and removing the suspension bolts before and after the lifting work.

According to the hanging metal fitting of the present invention according to claim 3 and the lifting method according to claim 5 using the same, there are the following effects.
When lifting, the pin never comes off the pin hole, which is safer.

According to the hanging metal fittings of the present invention according to claims 4 and 6 , the following effects (1) to (5) are obtained.
(1) It is possible to save labor and parts for attaching the female screw portion to the lifted member in advance.
(2) Easy to install.
(3) It is safe and will not come off unexpectedly.
(4) Easy to remove.
(5) There is no need for troublesome work of installing and removing the suspension bolts before and after the lifting work.

According to the hanging bracket of the present invention described in claim 7, the following effects (1) to (5) are obtained.
(1) It is possible to save labor and parts for attaching the female screw portion to the lifted member in advance.
(2) Easy to install.
(3) It is safe and will not come off unexpectedly.
(4) Easy to remove.
(5) There is no need for troublesome work of installing and removing the suspension bolts before and after the lifting work.

FIG. 1 is a perspective view of a hanging bracket shown together with a pillar, showing Embodiment 1 of the present invention, FIG. 2 (a) is a cross-sectional view of the hanging bracket along line AA in FIG. 1, and (b) is a bottom view. It is. 3A is a cross-sectional view of a pillar, FIG. 3B is a perspective view illustrating a framework of a building unit, and FIG. 4 is a cross-sectional view illustrating a lifting method using the hanging bracket of FIG.
FIG. 5 is a perspective view of a hanging bracket shown together with a pillar, showing Embodiment 2 of the present invention, FIG. 6 (a) is a cross-sectional view of the hanging bracket along line AA in FIG. 5, and (b) is a bottom view. It is. FIG. 7 is a cross-sectional view showing a lifting method using the hanging bracket of FIG.
8 shows a third embodiment of the present invention, and is a perspective view of a hanging metal fitting shown with a pillar. FIG. 9 (a) is a cross-sectional view of the plate along line AA in FIG. 8, and (b) is a bottom view. It is. FIG. 10 is a cross-sectional view showing a lifting method using the hanging bracket of FIG. FIG. 11 is a cross-sectional view showing a modification of the third embodiment.
In the description of the second and third embodiments, the same portions as those in the first embodiment are denoted by the same reference numerals, and the same portions are omitted.

The hanging bracket 1 of the first embodiment has a female screw portion 5 to which a suspension bolt 4 is screwed, and is attached to the upper end portion of the column 11 with the column 11 of the building unit 10 as a lifted member. .
The building unit 10 is a box composed of a pillar 11 at four corners, four floor beams 12 spanned between the lower ends of the pillars 11, and four ceiling beams 13 spanned between the upper ends of the pillars 11. It has a shaped framework (see (b) of FIG. 3).
The column 11 is formed of a square steel pipe, and the floor beam 12 and the ceiling beam 13 are formed of a steel bar having a U-shaped cross section.

As shown in FIGS. 1 and 3 (a), a square steel plate cover plate 14 (attached portion) is attached to the upper end portion of the column 11 by welding.
The cover plate 14 has a hollow portion on the back side, and a hook hole 15 and a pin hole 16 are formed on the diagonal of the plate surface at an appropriate distance.
In the pin hole 16, a nut 17 is welded to the lower surface that is the back surface of the cover plate 14, but there is no nut on the lower surface of the cover plate of the hook hole 15.
The pin hole 16 is also used for screwing the connecting bolt with the pillar of the upper floor building unit. The hanging hole 15 is also used to insert a long tool used for the bolt fastening operation required at the inner lower end of the column.

  The hanging metal fitting 1 is provided with locking means that can be locked to the cover plate 14 and slide control means such as pin coupling means that prevents displacement from the slid position. When the two are slid and overlapped, one of the slid states becomes an engaged state (see FIG. 4B), and the other state becomes a detachable state (see FIG. 4A).

Hereinafter, the specific structure of the hanging metal fitting 1 of a present Example is demonstrated.
The said hanging metal fitting 1 is provided with the main-body part 2 formed with the thick steel plate. The main body 2 is formed in a rectangular tubular box shape from an upper plate 21, a lower plate 22, and two side plates 23, 23 on both sides.
The main body 2 includes a mounting surface 3 that is superimposed on the lid plate 14 and a female screw portion 5 to which the suspension bolt 4 is screwed. The lower surface of the lower plate 22 is the mounting surface 3, and the female screw portion 5 is formed by welding a hexagon nut to the back side of the upper plate 21.
As shown in FIG. 2, the lower plate 22 serving as the mounting surface 3 is attached to the hanging portion 6 protruding from the tip portion in a bowl shape, and to the lower plate 22 slidably up and down, A pin 7 protruding below the mounting surface 3 is provided.

The hanging portion 6 is provided below the lower surface of the lower plate 22, and has a substantially circular disc 61 at a position separated from the lower plate 22 and an outer diameter smaller than the outer diameter of the lower plate 22. And a shaft portion 62 that connects the disc 61 to each other.
The circular plate 61 has an arc-shaped notch on the circumference, and this notch is provided so as not to interfere with the nut 17 even when it is in one of the slid states.
The outer diameter of the disk 61 is slightly smaller than the inner diameter of the hanging hole 15 so that it can be inserted into the hanging hole 15.

The shaft portion 62 is attached at a position where the shaft core is eccentric from the center of the disk 61 in the direction opposite to the direction in which the pin 7 is located. That is, as shown in FIG. 2B, the outer periphery of the shaft portion 62 and the disc 61 are aligned on the opposite side of the pin 7 so that the disc 61 protrudes from the shaft portion 62 on the pin 7 side. . In other words, the hook-shaped protrusion protrudes in the direction in which the pin 7 is located. This is because, in the circumferential direction with the pin 7 as the axis, the displacement cannot be prevented with respect to the relative rotation of the hanging metal fitting with the pin 7 as the axis and the mounted portion. If the pin 7 protrudes in a direction opposite to the direction in which the pin 7 is located, a portion that engages with the hook-shaped protrusion on the side away from the pin hole 16 of the hooking hole 15 is required. However, if the pin 7 is projected in a certain direction, the space between the hook hole 15 and the pin hole 16 can be used for engagement, and the column cover plate can be used effectively.
By making the disc 61 eccentric with the shaft portion 62 as described above, the disc 61 can be locked to the rear side edge of the hooking hole 15 when the pin 7 is inserted into the pin hole 16. .
One end of the shaft portion 62 is fixed to the disc 61 at a position eccentric at the lower end, and the other end is welded to the lower plate 22 at the upper end. In addition, a gap slightly larger than the thickness of the cover plate 14 is formed between the disc 61 and the lower plate 22 so that the mounting surface 3 can be slid and overlapped with the cover plate 14.

The pin 7 is attached to the lower plate 22 so as to be slidable up and down, but a head 72 larger than the pin hole 8 of the lower plate 22 is formed on the upper portion so as not to fall out from the lower plate 22. .
The outer diameter of the shaft portion 71 of the pin 7 is slightly smaller than the inner diameter of the pin hole 16 so that the pin 7 protrudes slidably below the lower plate 22 and can be inserted into the pin hole 16. .

  The suspension bolt shaft portion 41 to be screwed into the female screw portion 5 (hexagonal nut) is longer than the plate thickness of the upper plate 21, and the suspension bolt shaft portion from the lower surface of the upper plate 21 if the threaded dimension from above is increased. The tip of 41 can be protruded downward. The female screw portion 5 is provided at a position substantially immediately above the pin 7 so that one end of the pin 7 can be pressed by the tip of the shaft portion 41 of the suspension bolt 4 protruding from the upper plate 21 (FIG. 2). (See (i)). By changing the screwing dimensions, the pin 7 can be kept in a state where it hardly protrudes from the lower plate 22 or can be kept in a state where the pin 7 does not come off the pin hole 8.

Next, a method for lifting the building unit 10 using the hanging bracket 1 having the above-described configuration will be described with reference to FIG.
(1) Prepare the required number of suspension brackets 1 such as four for the pillars at the four corners, and attach them to the upper ends of the pillars 11 of the building unit 10.
At this time, first, as shown in FIG. 4 (a), the hanging portion 6 is inserted into the hanging hole 15, and the mounting surface 3 of the main body portion 2 is covered with the cover plate 14 (attached portion) of the column 11 (lifted member). And overlay. At this time, it is possible to switch between a detachable state in which the hanging bracket is separated from the mounted portion and a locked state in which the locking means capable of sliding the hanging bracket is locked to the mounted portion. .
(2) Next, the hanging metal fitting 1 is slid along the plate surface of the cover plate 14 in the direction in which the pin 7 approaches the pin hole 16 to be in an engaged state. Although the pin 7 is locked in a state where it is not inserted into the pin hole 16, it is in a released state in which the suspension bracket is slidable, so that the pin 7 is dropped into the pin hole 16 as shown in FIG. Set to the locked state inserted in. In this state, the hanging portion 6 is locked to the edge on the back surface side of the hanging hole 15, and the displacement from the slid position where the hanging bracket is engaged is prevented, and the hanging bracket 1 is attached.
(3) Thereafter, the head 72 of the pin 7 is pressed by the tip of the shaft portion 41 of the suspension bolt 4 screwed to the female thread portion 5, and a wire or the like is stretched around each diagonally opposed suspension bolt 4. Then, the building unit 10 is lifted by a crane or the like. In addition, as long as the pin can be constrained within a range where it does not come off from the pin hole of the cover plate, the tip of the shaft portion of the suspension bolt 4 may not be pressed against the head 72 of the pin 7.
(4) After unloading the building unit 10 to a predetermined place, loosen the suspension bolt 4, lift the pin 7 and remove it from the pin hole 16, and slide the suspension bracket in the opposite direction when attaching the suspension bracket 1. Can be removed.
(Operation of Example 1)

According to the hanging bracket 1 of the present embodiment and the lifting method using the same, the following operations (1) to (6) are obtained.
(1) Since the main body 2 has a female screw portion 5 to which the suspension bolt 4 is screwed, it is time and labor to attach the female screw portion 5 to the back surface side of the lid plate 14 of the column 11 in advance. It can be omitted.
(2) The hanging portion 6 provided on the mounting surface 3 of the main body 2 is inserted into the hanging hole 15 of the lid plate 14, the mounting surface 3 of the main portion 2 is overlapped with the lid plate 14, and the pin hole 16 is along the plate surface. If it slides in the direction, the hooking portion 6 is locked to the edge on the back surface side of the hooking hole 15, so attachment is easy.
(3) At this time, since the pin 7 is inserted into the pin hole 16, the displacement from the slide position is prevented, and the hanging metal fitting 1 is not accidentally detached and is safe.
(4) When removing, if the pin 7 is removed from the pin hole 16 and slid in the reverse direction, it can be easily removed.
(5) Since the hanging bracket 1 can be attached and detached while the suspension bolt 4 is attached to the female screw portion 5, the troublesome work of attaching and removing the suspension bolt 4 is not required before and after the lifting work, and the workability is excellent. .
(6) In the state in which the hanging bracket 1 is attached, the head of the pin 7 is pressed by the tip of the shaft portion of the suspension bolt 4 screwed to the female screw portion 5. It will not come off and it is safer.

  The suspension fitting 1a of the second embodiment has a female screw portion 5a to which the suspension bolt 4a is screwed in FIG. 5, and, like the first embodiment, the pillar 11 of the building unit 10 is used as a lifting member. 11 is attached to the upper end portion.

  The hanging metal fitting 1a includes locking means that can be locked to the lid plate 14 and slide control means such as pin coupling means that prevent displacement from the slid position. When one of the slid states is slid, the other state becomes the engaged state (see FIG. 7B), and the other state becomes the detachable state (see FIG. 7A).

Hereinafter, a specific configuration of the hanging metal fitting 1a according to the second embodiment will be described. In FIG. 6, the suspension fitting 1a includes a substantially rectangular parallelepiped body portion 2a formed of a thick steel plate.
The main body 2a has a mounting surface 3a that is overlaid on the lid plate 14, and a female screw part 5a through which the suspension bolt 4a passes and is screwed. The lower surface of the main body portion 2a is the mounting surface 3a, and the female screw portion 5a has a female screw directly formed on the main body portion 2a.

  As shown in FIG. 6, a hooking portion 6a is provided on the lower surface of the main body 2a serving as the mounting surface 3a.

  The hanging portion 6a is provided below the lower surface 22a of the main body portion 2a, and has a substantially circular disc 61a at a position separated from the lower surface 22a, and the lower surface 22a with an outer diameter smaller than the outer diameter of the disc 61a. The shaft 61a is connected to the disc 61a, is cut in the same manner as the disc 61a of the first embodiment, and the shaft 62a is also configured in the same manner as the first embodiment.

The shaft portion 62a is attached at a position where the shaft core is decentered from the center of the disk 61a in the direction opposite to the direction in which the screw hole 5a is located, and the disc 61a is decentered from the shaft portion 62a as described above. In the state where the tip end portion 411 of the suspension bolt is inserted into the pin hole 16, the disc 61 a can be locked to the rear surface side edge portion of the hanging hole 15. The reason is the same as in the first embodiment.
One end of the shaft portion 62a is fixed to the disc 61a at a position eccentric at the lower end, while the other end is welded to the main body lower portion 22a at the upper end. In addition, a gap slightly larger than the thickness of the cover plate 14 is formed between the circular plate 61a and the lower plate 22a so that the mounting surface 3a can be slid and overlapped with the cover plate 14. Same as 1.

  Further, a stopper hole 9 is provided at a position slightly away from the screw hole at the position where the upper end of the shaft portion 62a is welded to the lower body 22a, and the stopper 91 is screwed from above (first step control). means).

  The suspension bolt 4a screwed into the female screw portion 5a has a shaft portion 41a and a tip portion 411. The shaft portion is provided with a male screw, and the diameter of the tip portion 411 can be inserted into the pin hole 16. It is formed slightly smaller than the pin hole 16. If the shaft portion 41a is longer than the thickness of the main body portion 2a and has a larger screw-in dimension from above, the tip end portion 411 of the suspension bolt shaft portion 41a can protrude downward from the lower surface of the main body portion 2a. If the threading dimension from above is changed and the main body is slid, the tip 411 of the shaft 41a of the suspension bolt protruding from the lower portion 22a of the main body 2a can be inserted into the pin hole 16 and removed. (Also serves as a slide control means).

Next, a method for lifting the building unit 10 using the hanging bracket 1a having the above-described configuration will be described with reference to FIG.
(1) Prepare the required number of suspension brackets 1a, such as four for the pillars at the four corners, and attach them to the upper ends of the pillars 11 of the building unit 10.
At this time, first, as shown in FIG. 7 (a), the hanging portion 6a is inserted into the hanging hole 15, and the mounting surface 3a of the main body portion 2a is attached to the cover plate 14 (attached portion) of the column 11 (lifted member). And overlay. At this time, it is possible to switch between a detachable state in which the hanging bracket is separated from the mounted portion and a locked state in which the locking means capable of sliding the hanging bracket is locked to the mounted portion. .
(2) Next, the suspension metal fitting 1a is slid along the plate surface of the cover plate 14 in the direction in which the shaft tip 411 approaches the pin hole 16 to be in an engaged state. The shaft tip 411 is locked in a state where it is not inserted into the pin hole 16 but is in a released state in which the hanging bracket is slidable. Therefore, as shown in FIG. The shaft end 411 is dropped into the pin hole 16 to be in the locked state. In this state, the hanging portion 6a is locked to the edge on the back surface side of the hanging hole 15, and displacement from the slid position where the hanging fitting is engaged is prevented, and the hanging fitting 1a is attached.
(3) Furthermore, a stopper 91 is screwed into the stopper hole 9 provided in the main body 2a from above, and the leading end reaches the hooking hole 15 to prevent double displacement.
(4) Thereafter, a wire or the like is stretched around each of the diagonally facing suspension bolts 4a, and the building unit 10 is lifted by a crane or the like.
(5) After unloading the building unit 10 to a predetermined place, loosen the suspension bolt 4a, remove the shaft tip 411 from the pin hole 16, remove the tip of the stopper 91 from the hook 15 and slide in the reverse direction. Then, the hanging metal fitting 1a can be removed.
(Operation of Example 2)

According to the hanging metal fitting 1a of the second embodiment and the lifting method using the same, there are the following actions (1) to (5).
(1) The hanging portion 6a provided on the mounting surface 3a of the main body 2a is inserted into the hanging hole 15 of the lid plate 14, the mounting surface 3a of the main body 2a is overlapped with the lid plate 14, and a pin hole is formed along the plate surface. If it slides in 16 directions, the hanging portion 6a is locked to the rear surface side edge portion of the hanging hole 15, so that attachment is easy.
(2) At this time, since the tip of the shaft portion is inserted into the pin hole 16, the shift from the slide position is prevented, and the suspension fitting 1a is not unintentionally detached and is safe.
(3) Further, since the stopper 91 penetrates the stopper hole 9 and the tip end portion is inserted into the hooking hole 15, it is possible to prevent displacement from the slide position, and the hanging bracket 1a is not unexpectedly detached. It is safe.
(4) When removing, if the suspension bolt 4a is rotated in the loosening direction, the shaft tip 411 is removed from the pin hole 16, the stopper 91 is removed from the hanging hole 15 and slid in the opposite direction, it can be removed easily.
(5) Since the hanging bracket 1a can be attached and detached while the suspension bolt 4a is attached to the female screw portion 5a, the troublesome work of attaching and removing the suspension bolt 4a is not required before and after the lifting work, and the workability is excellent.

  The hanging bracket 1b of the third embodiment is composed of a hanging portion 4b, a main body plate portion 2b, and a hanging portion 6b in FIG. 8, and like the first and second embodiments, the column 11 of the building unit 10 is used as a lifting member. It is attached to the upper end of the column 11.

  The hanging metal fitting 1b includes locking means that can be locked to the cover plate 14, and slide control means that prevents displacement from the slid position. The hanging part 4b, the main body plate part 2b, and the hanging part 6b When the combination, the hanging part 6b is inserted into the hanging hole 15, and the main body plate lower part 22b is slid on the lid plate 14 of the column 11, the sliding state is the engaged state (see FIG. 10 (b)). The other state is a detachable state (see FIG. 10A).

Hereinafter, a specific configuration of the hanging metal fitting 1b according to the third embodiment will be described.
In FIG. 8, the hanging metal fitting 1b includes a hanging portion 4b, a main body plate portion 2b, and a hanging portion 6b. The main body plate portion 2b is formed in a substantially rectangular parallelepiped shape with a thick steel plate and is superimposed on the attached portion. And a through hole 5b through which the shaft portion 62b of the hooking portion 6b passes, and a protrusion 202 protruding in the direction of the hooking hole is provided at a part of the periphery of the through hole 5b of the mounting surface 22b. ing.

  The hanging portion 6b includes a substantially circular disc 61b and a shaft portion 62b that connects the disc 61b and the suspension portion 4b with an outer diameter smaller than the outer diameter of the disc 61b. A male screw is provided on the part side, penetrates through the through hole 5b, and is screwed into the nut portion of the hanging portion 4b. The disc 61b is notched as in the first embodiment.

  The shaft portion 62b is attached at a position where the shaft core is decentered from the center of the disk 61b in a direction opposite to the notched direction, and the disc 61b is decentered from the shaft portion 62b as described above, thereby The plate 61b can be locked to the rear side edge of the hanging hole 15.

The hanging portion 4b has a nut portion 401, and the shaft portion 62b of the hanging portion 6b passes through the through hole 5b of the main body plate portion 2b and is screwed to the nut portion 402 of the hanging portion 4b. The length of the shaft portion 62b is longer than the sum of the thickness of the member to be lifted 14 and the thickness of the main body plate portion 2b, and the hanging portion 6b is inserted into the hanging hole 5b while being loosely screwed, and the hanging portion is moved by sliding. It can be locked under the hanging hole. The protrusion 202 is inserted into and removed from a gap on the opposite side of the protruding portion with respect to the remaining shaft portion in the hanging hole after the hanging portion 6b is inserted into the hanging hole 5b and locked. This is a restraining member that restrains the slide of the shaft portion in the inserted state. Further sliding and dropping the protrusion 202 of the main body plate into the hooking hole 5b and increasing the threaded dimension of the nut 402 from above will prevent sliding and ensure locking.
Next, a method of lifting the building unit 10 using the hanging bracket 1b having the above-described configuration will be described with reference to FIG.

(1) Prepare the required number of suspension brackets 1b, such as four for the pillars at the four corners, and attach them to the upper ends of the pillars 11 of the building unit 10.
At this time, first, as shown in FIG. 10 (a), the shaft portion 62b of the hanging portion 6b passes through the through hole 5b of the main body plate portion 2b, and the main body plate because of the gap between the through hole 5b and the shaft portion 62b. The portion 2b can be freely moved up and down, and is prepared by gently screwing the tip end portion of the shaft portion 62b to the nut portion 401 of the hanging portion 4b. Next, when the hanging portion 6 b of the hanging metal fitting 1 b is inserted into the hanging hole 15, the tip of the projection portion 202 of the main body plate portion hits the column top lid 14, the main body plate portion 2 b moves upward, and the hanging portion 61 b enters the hanging hole 15. Inserted.
At this time, the hanging bracket is in a detachable state, and is switched between a detached state in which the hanging bracket is separated from the mounted portion and a locked state in which the locking means capable of sliding the hanging bracket is locked to the mounted portion. Is possible.
(2) Next, the hanging metal fitting 1b is slid along the plate surface of the cover plate 14 in the direction of the notch of the hanging portion to be in an engaged state. When the projection 202 of the main body plate portion 2b is not inserted into the hanging hole 15, the suspension fitting is in a released state in which the suspension bracket is slidable. Therefore, the protrusion 202 protruding from the lower surface 22b of the main body plate portion is further dropped into the hanging hole 15. Then, the nut portion 401 of the hanging portion is largely rotated to be in a locked state. In this state, as shown in FIG. 10 (b), the hanging portion 61b is locked to the edge on the back surface side of the hanging hole 15, and displacement from the slid position where the hanging metal fitting 1b is engaged is prevented. Then, the suspended metal fitting 1b is attached.
(3) Thereafter, a wire or the like is stretched around each of the diagonally facing suspension bolts 4b, and the building unit 10 is lifted by a crane or the like.
(4) After unloading the building unit 10 to a predetermined place, the nut portion 401 of the hanging portion 4b is loosened, the projection 202 of the main body plate portion 2b is removed from the hanging hole 15, and the hanging portion 6b is removed from the hanging hole 15. By slid in the opposite direction, the hanging bracket 1b can be removed.
(Operation of Example 3)

According to the hanging bracket 1b of the third embodiment and the lifting method using the same, there are the following actions (1) to (5).
(1) The shaft portion 62b of the hanging portion 6b passes through the through hole 5b of the main body plate portion 2b, and the main body plate portion can be freely moved up and down due to a gap between the through hole and the shaft portion. When the hanging portion 6b of the lifting tool 1b prepared by loosely screwing is inserted into the hanging hole 15, the tip of the projection 202 of the main body plate portion 2b hits the column top lid 14, and the main body plate portion 2b moves upward. The hanging portion 6 b is inserted into the hanging hole 15. Next, when the suspension fitting 1b is slid along the plate surface of the cover plate 14 in the direction of the notch portion of the hanging portion, the hanging portion 6b is locked to the rear side edge portion of the hanging hole 15, so that the attachment is easy. is there.
(2) At this time, the protrusion 202 on the lower surface 22b of the main body plate portion is further dropped into the hooking hole 15, and the nut portion 402 of the suspension portion is greatly rotated to be in the locked state. 1b does not come off unexpectedly and is safe.
(3) When removing, loosen the nut portion 402 of the hanging portion 4b, remove the projection 202 of the main body plate portion from the hanging hole 15, remove the hanging portion 6b from the hanging hole 15, and slide in the opposite direction to easily attach the hanging bracket. 1b can be removed.

  As a modification of the third embodiment, as shown in FIG. 11, the suspension bolt 4c and the nut 403 are used instead of the nut portion 402 of the suspension portion 4b of the third embodiment, and the nut is turned, and the same as the third embodiment. The effect is obtained.

Although one embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration of the present invention is not limited to this embodiment, and there are design changes and the like without departing from the scope of the present invention. Are also included in the present invention.
In the embodiment, the lifted member is a pillar of the building unit, but it may be a ceiling beam of the building unit. In addition, the hanging bracket is attached to the cover plate at the top of the pillar, but it may be attached to the side of the pillar, or it may be attached to a construction hardware having a hanging hole and a pin hole embedded in a wall or a building unit. Good.

  It is not necessary to attach and remove suspension bolts before and after the lifting work, and the workability is excellent, so that it can be applied to lifting applications using lifting hardware with good workability.

It is a perspective view of the hanging metal fitting which shows one Example of this invention and is shown with a pillar. (A) is sectional drawing of the hanging metal fitting in the AA line of FIG. 1, (b) is a bottom view. (A) is sectional drawing of a pillar, (b) is a perspective view which shows the framework of a building unit. It is sectional drawing which shows the lifting method using the hanging metal fitting of FIG. It is a perspective view of the hanging metal fitting which shows one Example of this invention and is shown with a pillar. (A) is sectional drawing of the hanging metal fitting in the AA line of FIG. 5, (b) is a bottom view. It is sectional drawing which shows the lifting method using the hanging metal fitting of FIG. It is a perspective view of the hanging metal fitting which shows one Example of this invention and is shown with a pillar. (A) is sectional drawing of the hanging metal fitting in the AA line of FIG. 8, (b) is a bottom view. It is sectional drawing which shows the lifting method using the hanging metal fitting of FIG. FIG. 4 is a sectional view showing a modification of the embodiment of FIG.

Explanation of symbols

1, 1a, 1b Suspension bracket 2, 2a Body 2b Body plate 3, 3, 3a, 3c Mounting surface 4, 4a Suspension bolt 4b, 4c Suspension 5 Hexagon nut (female thread)
5a, 5b Through hole (Female thread)
6, 6a, 6b Hanging part 7 Pin 11 Pillar (member to be lifted)
14 Lid (attached part)
15 hanging hole 16 pin hole

Claims (7)

A hanging bracket attached to a lifted member,
The locking means and the slide control means are provided, and in one state where the hanging bracket is slid with respect to the mounted portion with the hanging bracket superimposed on the mounted portion of the lifting member, the locking means is attached to the mounted portion. In addition to being able to be locked, the slide control means can be switched between a locked state in which the suspension bracket is prevented from shifting from the slide position and a release state in which the suspension bracket is slidable. In the other state, it is possible to switch between a locked state where the locking means is locked to the mounted portion and a detached state where the locking means is detached from the mounted portion and the hanging bracket is separated from the mounted portion. A hanging bracket characterized by that. A hanging bracket that is attached to a lifting member having a planar attached portion in which a hanging hole and a pin hole are formed on a plate surface, and having a gap on the back side,
A main body having a mounting surface overlaid on the mounted portion and a female screw portion to which a suspension bolt is screwed, and the mounting surface is provided with a tip portion protruding in a bowl shape; A hook portion that is inserted into the hook hole, and a pin that protrudes slidably and is inserted into the pin hole, and when the pin is inserted into the pin hole, the hook portion is a rear side edge of the hook hole. A hanging bracket characterized in that it can be locked to. The suspension fitting according to claim 2, wherein the female screw portion is provided at a position where one end of the pin can be pressed by a tip of a shaft portion of a suspension bolt protruding from the female screw portion. A hanging bracket that is attached to a lifting member having a planar attached portion in which a hanging hole and a pin hole are formed on a plate surface, and having a gap on the back side,
A body plate portion having a mounting surface overlaid on the mounted portion and a female screw portion through which a suspension bolt penetrates and is screwed; A hanging portion that is inserted into the hanging hole is provided, the hanging portion is inserted into the hanging hole, and the hanging portion is inserted into the pin hole in a state where the tip end of the shaft portion of the suspension bolt is inserted into the pin hole. A hanging bracket characterized in that it can be locked to an edge portion on the back surface side. Insert the hanging part into the hanging hole, overlay the mounting surface of the main body part with the mounted part of the lifted member, slide the pin along the plate surface of the mounted part in the direction approaching the pin hole, and pin the pin hole In the state of being inserted into the hook, the hanging portion is engaged with the rear edge of the hanging hole to attach the hanging metal fitting, and the pin moves the upper limit of movement of the pin by the tip of the shaft portion of the hanging bolt screwed to the female screw portion. 4. The lifting method using the lifting bracket according to claim 2 or 3 , wherein the lifting member is lifted while being restrained within a range that does not come off. Slide the tip of the suspension bolt that is screwed into the female thread along the plate surface of the mounted part in the direction in which the tip of the suspension bolt approaches the pin hole, and lock the hook to the rear edge of the hook. 5. The suspension member is attached, screwed into the female screw portion, the shaft tip end of the penetrating suspension bolt is inserted into the pin hole and fixed so as not to be removed, and the suspended member is lifted. Lifting method using a hanging bracket. A mounting bracket that is provided with a planar mounted portion in which a hanging hole is formed on a plate surface and is attached to a lifted member having a gap on the back surface side,
The main body plate portion is composed of a hanging portion, a main body plate portion, and a hanging portion. The main body plate portion has a mounting surface that is superimposed on the attached portion, and a shaft portion of the hanging portion that is screwed to the nut portion of the hanging portion. The mounting surface is provided with a protruding portion that protrudes in the direction of the hanging hole, and the hanging portion is engaged with the rear side edge of the hanging hole in a state where the protruding portion is inserted into the hanging hole. A hanging bracket characterized by being able to be stopped.

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