JPH10131478A - Adjustable hanger scaffold - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stably hang a hanger scaffold in a horizontal state even on the respective places of a frame slanting in the three-dimensional directions, and assemble and disassemble it safely and easily. SOLUTION: By pivotally fitting a pair of hanging frames 1a in which upper frame materials 11 and lower frame materials are hingedly combined together so as to be formed bendable at the middle points to both ends of a loading frame 1c at the respective upper end parts, a hanger 1 capable of opening the legs so as to be strided over a truss, a beam, and the like and engagedly hung is provided. A pair of hanger scaffolds 2 are mounted to the respective lower frame materials of both the hanging frames 1a of the hanger 1 capably of adjusting the slants. Further a lock device 15 locking the respective hanging frames 1a in an optitional opening legs state is provided, and the respective hanger scaffolds 2 are mounted capably of adjusting the slants, by providing the proper number of slits 115, 241 mutually crossing on the respective lower frame materials and the hanger scaffolds 2, and fastening them at the crossing points by bolts/nuts 16 capably of adjusting the slants.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a free-hanging hanger scaffold for temporarily setting a scaffold horizontally even on a frame whose direction is inclined three-dimensionally.

[0002]

2. Description of the Related Art As conventional temporary suspension scaffolds, shelf scaffolds and suspension hanger scaffolds using suspension chains are known. In the former, a hanging chain is hung in a ring shape on a beam, and the hanging chain supports a shelf scaffold composed of a single tube, a scaffold plate, and the like.The latter uses a hanger scaffold with a horizontal or almost horizontal beam as a fulcrum. It is used for hanging.

[0003]

In the construction of an egg-shaped dome or the like, the truss constituting the roof may be three-dimensionally inclined at various angles. It is important for work and safety to keep the scaffold horizontal or almost horizontal. In this regard, in the case of a shelf scaffold using the above-described suspension chain, it is possible to cope with a three-dimensional inclination to some extent by changing the length of the suspension chain. However, if the fulcrum spacing is large, the scaffold strength decreases. In addition, since the scaffolding is to be mounted at a high place, a large number of man-hours are required for assembling and disassembling. At the present time, a suspended hanger scaffold cannot be used for a truss or the like which is three-dimensionally inclined, since only a horizontal or almost horizontal portion is used at present. The present invention is intended to solve those problems, and enables a hanger scaffold to be stably suspended in a horizontal state even at various points of a frame whose direction is inclined three-dimensionally. And disassembly can be performed safely and easily.

[0004]

In order to achieve the above object, a first aspect of the present invention is to provide a pair of suspension frames 1a and 1b formed by hinge-connecting an upper frame member 11 and a lower frame member 12 so as to be capable of being folded in the middle.
Are pivotally attached to both ends of the mounting frame 1c at the upper end, respectively, thereby providing a hangable hanger 1 that can be spread over a truss, a beam, or another important point to engage and suspend. A pair of hanger scaffolds 2 are mounted on the lower frame members 12 of the both hanging frames 1a and 1b so as to be tiltable.

[0005] The invention according to claim 2 comprises an upper frame member 11 and a lower frame member.
12 is hinged to form a pair of hanging frames 1a and 1b which are pivotally attached to both ends of the mounting frame 1c at their upper ends, so that they can be stretched over trusses, beams, and other important points. Hanging hanger 1 that can be opened
A pair of hanger scaffolds 2 are attached to each lower frame member 12 of the both hanging frames 1a, 1b of the hanging hanger so as to be tiltable, and the pair of hanging frames 1a, 1b and the mounting frame 1c are provided. A lock device 15 for locking each of the hanging frames 1a and 1b in an arbitrary open state is provided between the lower frame member 12 and the hanger scaffold 2 so that the inclination of each hanger scaffold 2 can be adjusted. An appropriate number of slits 123 and 241 that intersect with each other are provided, and the slits 123 and 241 are movably inserted into both of the intersections, and tightened and loosened at bolts and nuts 16 at the intersections to adjust the inclination.

[0006] The invention of claim 3 is claim 1 or claim 2.
And a plurality of suspension plates 113 projecting from the outer surface of the upper frame member 11 of the pair of suspension frames 1a and 1b.

According to a fourth aspect of the present invention, there is provided the free-hanging hanger scaffold of the second aspect, wherein the slits 123 of the lower frame members 12 are provided.
Is formed on the vertical member 121 constituting each lower frame member 12, and the slit 241 of each hanger scaffold 2 is formed on the baseboard plate 24 provided on each hanger scaffold 2.

[0008] The invention of claim 5 is based on claim 1, claim 2,
The free-hanging hanger scaffold according to claim 3 or 4, wherein each of the hanging frames (1a, 1b) and each of the hanger scaffolds (2).
The hanging chain 4 and the direction stick 29 are detachably mounted between them.

According to a sixth aspect of the present invention, there is provided the free-hanging hanger scaffold according to the first, second, third, fourth, or fifth aspect, wherein the hanger scaffold 2 is foldable on a side surface thereof. It is provided with an overhanging scaffold 3.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS The drawings show a free-hanging hanger scaffold used in the construction of a roof truss such as an oval dome that tilts three-dimensionally at various angles. In the figure, 1 is a hanging hanger that can be spread over and folded in mid-strand so as to straddle the upper chord material A of the truss, and 2 is a pair of hanger scaffolds attached to the lower part of the hanging hanger so as to be tiltable. 3,
This is an overhanging scaffold that is foldably attached to the side of each hanger scaffold.

As shown in FIGS. 1 to 7, the hanging hanger 1 is composed of a vertical member 111, 121 and a horizontal member 112, 122 formed by connecting an upper frame member 11 and a lower frame member 12 formed in a rectangular shape by a two-point hinge 13. Pair of hanging frames 1a and 1
b is pivotally attached to both ends of the mounting frame 1c at the upper end so as to be able to open the legs, so that it can be straddled on the upper chord material A of the truss, and the suspension frames 1a, 1 1b
An engagement / removable locking device 15 for locking the rotation of the lower frame member at an arbitrary angle is provided, and a pair of hanger scaffolds 2 are mounted on the outer surfaces of both lower frame members 12 so as to be tiltable. A plurality of suspension plates 113, each having a through hole formed on the outer surface of the left and right vertical members 111, are disposed on both upper frame members 11 so that they can be lifted by a crane or the like. A plurality of fixing hooks 114 are protruded at appropriate positions on both side surfaces of the truss 111 so that they can be temporarily engaged with bolts protruding from the connection end of the upper chord material A of the truss. At 1c, a rotation hook 19 is mounted at an appropriate position so that the truss can be engaged with a bolt protruding from the end of the upper chord material A of the truss. In both lower frame members 12, slits 123 which are long in the material length direction and are opened on the inner and outer surfaces are formed in left and right vertical members 121, and bolts and nuts 16 which are removably inserted into these slits respectively are provided. Thereby, the inner surface side of each hanger scaffold 2 is fastened so as to be tiltable. Further, braces 17, 115, and 124 are erected and reinforced on the mounting frame 1c, the upper frame members 11, and the lower frame members 12, respectively. The rubber plates 18 and 116 are adhered so as not to damage the upper chord material A of the straddled truss. The left and right vertical members 111 and 121 of each upper frame member 11 and each lower frame member 12 and the horizontal member 112 above each upper frame member 11 are provided with square pipes and the horizontal members 122 below each lower frame member 12. Is a round pipe, a horizontal member 112 below each upper frame member 11 and each lower frame member 12
An angle is used for the horizontal member 122 on the upper part of FIG.

As shown in FIG. 8, both locking devices 15 are provided on the upper surfaces of both ends of the mounting frame 1c in the vicinity of the respective pivots 14 between the both hanging frames 1a, 1b and the mounting frame 1c. A fan-shaped lock plate 151 centered on the pivot portion 14 is erected along the vertical member 111 of each upper member 11, and each sector-shaped lock plate 151 has a locking circular arc centered on the pivot portion 14. Elongated holes 152 are formed, and the locking bolts / nuts 153 provided on the vertical member 111 are inserted into these elongate locking arc holes. In each of the locking arc-shaped long holes 152, a plurality of locking recesses 154 are arranged in a gear tooth shape on the upper hole edge, and each of the locking bolts / nuts 153 is engaged with one of the locking recesses 154. Each locking bolt / nut 153 is vertically movable in each of the short and long holes 155 drilled in the material length direction at an appropriate position of the one vertical member 111 in correspondence with each of the locking arc-shaped long holes 152. The engagement and disengagement from each locking recess 154 is obtained by this vertical movement. Thus, both locking devices 15 can be locked in the respective small and long holes 155 by lowering the respective locking bolts / nuts 153 in a loose state and disengaging them from the locking recesses 154. The movement of each locking bolt / nut 153 in the inside 152 is free, and the legs, that is, the rotation of each hanging frame 1a, 1b are free. Further, the respective locking bolts / nuts 153 are raised at an arbitrary opening angle of each of the suspension frames 1a, 1b to engage with the corresponding locking recesses 154. -The movement of the nut 153 becomes impossible, and the suspension frames 1a and 1b are restrained at the opening angle.

As shown in FIGS. 9 and 10, each two-point hinge 13 is connected to an upper frame member 11 and a lower frame member 12 of each of the suspension frames 1a and 1b.
A pair of hinge plates 131 are abutted from both sides between the vertical members 111 and 121, respectively, and hinge pins 132 and 132 are attached to both ends of both hinge plates and ends of the upper and lower vertical members 111 and 121.
The hanging frames 1a and 1b are formed so as to be able to be folded inward and outward by being inserted through the frame 133.

As shown in FIGS. 1 to 7, 11, and 12, the pair of hanger scaffolds 2 have a depth of each hanging frame.
Expanded metal 22 is placed on the top surfaces of a pair of scaffold frames 21 approximately the same in width and approximately twice as wide as 1a and 1b, and the four corners of each scaffold frame 21 are vertically sheathed.
23, a skirting board 24 is attached to the inner or inner sheath tube 23 on the inner or inner side of each scaffold frame 21, and each scaffold frame 21
A skirting board mesh sheet 25 is attached to one side surface or the front and rear sheath tubes 23 of the one side surface, and a handrail post 26 having a locking pin 261 protruding from an upper end and an intermediate portion of each sheath tube 23 can be freely inserted and removed. The handrail tube 27 and the girder tube 28 are removably mounted between the adjacent handrail columns 26 by their locking pins 261. The scaffold 2 is attached, and the side of the inner surface of each hanger scaffold 2 in the baseboard plate 24 is connected to each of the above-mentioned hanging frames 1a, 1
b attached to the lower frame member 12. As shown in FIG. 11, each baseboard plate 24 has two upper and lower slits 241 arranged in the left half and the right half, respectively.
As shown in FIG. 3, the bolts and nuts 16 inserted in the slits 123 are respectively crossed with the slits 123 in the lower frame members 12 of the suspension frames 1 a and 1 b, and the slits 241 of the baseboard plate 24 are respectively inserted into the slits 241. Can be inserted freely to change the position,
By locating at each intersection, each hanger scaffold 2 can be tilted and adjusted by moving each bolt and nut 16 in the slit, and by tightening the bolts and nuts 16 after the required tilt adjustment. ,
Each hanger scaffold 2 is fastened to the lower frame member 12 of each of the suspension frames 1a and 1b so as to be tiltable. Each scaffold frame 21
As shown in FIGS. 11 and 12, a plurality of staff support members 211 are disposed on the outer surface of the support member 21.
1, as shown in FIGS. 1 to 4, 15 and 16,
The upper end of the stick 29 is connected to any one of the hanging frames 1a, 1 so that the lower end of the stick 29 can be freely changed in direction.
b to the lower horizontal member 122 of the lower frame material 12
The 291 allows it to be connected detachably and repositionably. As shown in FIGS. 15 and 16, a U-shaped metal piece 292 is pivotally attached to the upper end of each stick 29 so as to be vertically rotatable.
Then, each U-shaped metal member is fastened to an arbitrary cane supporting metal member 211 by a bolt / nut 294 so as to be horizontally rotatable. In addition, between the outer sheath tube 23 of each scaffold frame 21 and one of the suspension plates 113 of each of the suspension frames 1a and 1b,
As shown in FIGS. 1 to 4, the suspension chain 4 is detachably extended to reinforce.

As shown in FIGS. 11, 12, and 14, the overhanging scaffold 3 attached to the side of each hanger scaffold 2 has a small overhanging frame 31 attached to the other side of each scaffolding frame 21 with a hinge. In the state where each overhanging frame 31 is horizontally laid down, and each overhanging frame 31 is horizontally tilted, an expanded metal 33 is attached to the upper surface of each overhanging frame 31, and the front and rear of each side end Sheath tubes 34 are provided vertically at the two corners of
Handrail pillars with locking pins 351 protruding at the upper end and middle part respectively
35 can be freely inserted and removed, and their locking pins 26
By means of 1, a handrail chain 352 and a girder chain 353 are detachably installed between adjacent handrail columns 26 and 35, respectively. The double stud 3 is used to increase the area of the scaffold. When it is not necessary to increase the area, the handrail pipe 35, the handrail chain 352, and the girder chain 353 are removed, and the respective overhang frames 31 are removed. The expanded metal 33 is used for a baseboard.

When using the truss, first, the truss is laid in such a manner as to be adapted to the inclination of the used portion of the upper chord material A of the truss, and the inclination of both hanger scaffolds 2 is adjusted.
At this time, if the overhang scaffold 3 is required, the overhang frame 31 is defeated, and the overhang scaffold 3 is also grounded. However, both locking devices
15 is left out. Next, it is slung on the hanging plate 113 provided on each of the hanging frames 1a and 1b of the hanging hanger 1 and lifted by a crane or the like. In this lifting state, since each suspension plate 113 is located on the outer surface of each suspension frame 1a, 1b and outside the pivotal connection portion 14 of each suspension frame 1a, 1b and the mounting frame 1c, each suspension frame 1a, 1b 1b Therefore, the hanging hanger 1 is automatically in the open state. The hanging hanger 1 lifted in the open state is straddled over a key portion of the upper chord material A of the truss. In this state, the respective fixing hooks 114 and the rotating hooks 19 are temporarily engaged with bolts protruding from the upper chord material A of the truss, and both the lock devices 15 are locked to fix the respective suspension frames 1a, 1b. , End the temporary construction. When the upper chord material A of the truss is horizontal as shown in FIGS. 1 and 3, for example, the hanger scaffolds 2 temporarily do not tilt with respect to the hanging hanger 1 as shown in FIGS. As shown in FIG. 2, when the upper chord material A of the truss is inclined in the direction of the material axis, both hanger scaffolds 2 are inclined with respect to the hanging hanger 1, and as shown in FIG. If A has a twist in the torsion direction, one of the suspension frames rotates to the open state and the other suspension frame is in the folded state. As a result, in both cases, both hanger scaffolds are used. 2 can be maintained in a horizontal state. For removal, the reverse procedure may be performed.

Although the above embodiment is directed to the construction of a roof truss such as an egg-shaped dome, it may be a steel beam or the like in a general building, and the position of the fixing hook 114 may be set to correspond to it.

[0018]

According to the first, second, third, fourth, fifth, and sixth aspects of the present invention, the following effects are achieved because of the configuration described above. (1) The hanger scaffold 2 can be always kept horizontal even with a complicated truss, beam, or the like that is inclined three-dimensionally, so that work at high places can be performed safely. (2) Temporary installation and dismantling of scaffolds at high altitudes can be performed very easily by most of the above-mentioned steps, such as assembling and adjusting the inclination or dismantling and lifting by crane, etc. Can be reduced. (3) Since it can be easily attached to and detached from trusses, beams, etc., the number of times the scaffold is diverted greatly increases, and temporary costs can be reduced. (4) Just change the parts connected to trusses, beams, etc.
Since it can also be used for shaped steel and steel pipes, a wide horizontal deployment can be achieved.

Further, according to the second aspect of the present invention, the structure can be made simple specifically, and it can be manufactured easily and inexpensively.

According to the third aspect of the present invention, a plurality of suspension plates 11 are provided on the outer surface of the upper frame member 11 of the pair of suspension frames 1a and 1b.
3 and protruded, lifted with a crane, etc. on these suspension plates to form a pair of suspension frames.
1a, 1b can be automatically opened, so
It can be easily attached to and detached from trusses and beams.

According to the invention of claim 4, the slits 123 of each lower frame member 12 are formed in the vertical member 121 constituting each lower frame member 12, and the slits 241 of each hanger scaffold 2 are provided in each hanger scaffold 2. Since the hanger scaffold 2 is formed on the baseboard plate 24, the inclination of each hanger scaffold 2 can be easily, smoothly, and accurately adjusted, and the structure can be simplified without obstruction.

According to the fifth aspect of the present invention, each hanging frame is provided.
Since the hanging chains 4 and the hooks 29 are detachably mounted between 1a, 1b and each hanger scaffold 2, each hanger scaffold 2 can be sufficiently reinforced and stability and safety can be secured.

According to the sixth aspect of the present invention, the hangable scaffold 2 is provided with the foldable overhanging scaffold 3 on the side surface thereof. Is convenient to extend.

[Brief description of the drawings]

FIG. 1 is a front view in a non-tilted state showing an embodiment of a free-hanging hanger scaffold according to the first to fifth aspects of the present invention.

FIG. 2 is a front view of the same embodiment in an inclined state.

FIG. 3 is a partially cut-away side view of the same embodiment in a non-tilted state.

FIG. 4 is a partially cut-away side view of the same embodiment in an inclined state.

FIG. 5 is an enlarged front view showing the hanging hanger in the embodiment.

FIG. 6 is a partially cut-away enlarged side view showing the hanging hanger.

FIG. 7 is an enlarged plan view showing the hanging hanger.

FIG. 8 is an enlarged side view of a lock device in the hanging hanger.

FIG. 9 is an enlarged front view of a two-point hinge of the hanging hanger.

FIG. 10 is an enlarged side view of the same two-point hinge.

FIG. 11 is an enlarged front view of the hanger scaffold in the embodiment.

FIG. 12 is a partially cut-away enlarged plan view of the hanger scaffold.

FIG. 13 is an enlarged front view showing a joint between the hanging hanger and the hanger scaffold in the embodiment.

14 is a partially enlarged plan view showing a part of FIG. 12 in a further enlarged manner.

FIG. 15 is an enlarged sectional side view of the brace in the embodiment.

FIG. 16 is an enlarged sectional front view of the same cane.

[Explanation of symbols]

A: Upper chord material of truss 1 ... Hanging hanger 2 ... Hanger scaffolding 3 ... Extension scaffolding 4 ... Hanging chain 1a, 1b ... Hanging frame 1c ... Placement frame 11 ... Upper frame material 12 ... Lower frame material 13 ... Two-point hinge 14 … Pivot 15… Locking device 16… Bolts and nuts 17… Brace 18… Rubber plate 19… Rotating hook 21… Scaffold frame 22… Expanded metal 23… Sheath tube 24… Skirting plate 25… Skirting mesh sheet 26… Handrail post 27… Handrail tube 28… Girder tube 29… Screw 31… Extension frame 32… Hinges 33… Expanded metal 34… Sheath tube 35… Handrail post 111,121… Vertical member 112,122… Horizontal member 113… Suspension plate 114… Fixed Hook 115,124… Brace 116… Rubber plate 123… Slit 131… Hinge plate 132,133… Hinge pin 151… Fan-shaped lock plate 152… Lock arc-shaped long hole 153… Lock bolt and nut 154… Locking recess 155… Short small long hole 211… One Support hardware 261 ... locking pin 241 ... slit 291 ... clamp 292 ... U-shaped hardware 293 ... pivot 351 ... locking pin 352 ... handrail chain 353 ... digit chain

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Noriyoshi Kamasaki 3-6-2 Nihonbashi, Chuo-ku, Tokyo Asahi Equipment Co., Ltd. (72) Inventor Hiroaki Takahashi 3-6-1 Nihonbashi, Chuo-ku, Tokyo Asahi Equipment Co., Ltd.

Claims (6)

[Claims] 1. A pair of hanging frames 1a and 1b formed by hinge-joining an upper frame member 11 and a lower frame member 12 so as to be able to be folded in the middle, respectively, are pivotally attached at upper ends to both ends of a mounting frame 1c. A hanging hanger 1 which can be spread over a truss, a beam, or another important point to be engaged and suspended is provided, and a pair of hangers is provided on each lower frame member 12 of the both hanging frames 1a and 1b of the hanging hanger. A free-hanging hanger scaffold characterized in that the scaffold 2 is mounted so as to be adjustable in inclination. 2. A pair of suspension frames 1a, 1b, which are hingedly connected to an upper frame member 11 and a lower frame member 12, and are formed so as to be able to be folded in the middle, are respectively pivotally attached at upper ends to both ends of the mounting frame 1c. A hanging hanger 1 which can be spread over a truss, a beam, or another important point to be engaged and suspended is provided, and a pair of hangers is provided on each lower frame member 12 of the both hanging frames 1a and 1b of the hanging hanger. The scaffold 2 is mounted so as to be adjustable in inclination, and a locking device 15 is provided between the pair of hanging frames 1a, 1b and the mounting frame 1c to lock each of the hanging frames 1a, 1b in an arbitrary open state. A suitable number of slits 123 and 241 are provided for each of the lower frame members 12 and the hanger scaffold 2 so as to intersect each other so that the hanger scaffolds 2 can be adjusted in inclination. Tighten the bolt and nut 16 to loosen A free-hanging hanger scaffold characterized by being tied. 3. The free-hanging hanger scaffold according to claim 1, wherein a plurality of hanging plates 113 project from outer surfaces of the upper frame member 11 of the pair of hanging frames 1a and 1b, respectively. 4. A skirting board 24 having slits 123 of each lower frame member 12 formed in a vertical member 121 constituting each lower frame member 12, and slits 241 of each hanger scaffold 2 provided on each hanger scaffold 2. 3. A free-hanging hanger scaffold according to claim 2, wherein 5. The free suspension according to claim 1, wherein a suspension chain and a hook are detachably mounted between each suspension frame and each hanger scaffold. Hanging hanger scaffold. 6. The free-hanging hanger scaffold according to claim 1, wherein a foldable overhanging scaffold is attached to a side surface of each of the hanger scaffolds.