JPH05321481A - Master rope support for scaffold of framework - Google Patents

Abstract

PURPOSE:To reduce the room for generating the fall of a worker at the time of work for standing master rope supports, between which a master rope is stretched outside over a gangboard of the top floor by installing the lower side of the master rope support to the upper side of a vertical rod of a framework of the top floor of the scaffold, which faces to the outside opposite to the building, so as to stand outside of the gangboard of the top floor. CONSTITUTION:A vertical rod of a framework 1 is inserted to the lower side of a support main body 4 in the vertical direction, and an upper installation part and a lower installation part for fixing this support main body 4 are provided in the upper and the lower with a space. A connection part of an upper turning vane and a lower turning vane is fixed to these upper installation part and the lower installation part freely to turn so that the connection part is pushed to be turned freely under the horizontal condition when the vertical rod of the framework 1 is inserted from the open side of the sides of the upper installation part and the lower installation part and that the connection part can be locked under the fixed condition to prevent the fall of the vertical rod of the framework 1 after the insertion of the vertical rod of the framework 1. The lower turning vane is provided so as to be fitted to a reinforcing rod of the framework 1 from over, and furthermore, an insertion part of a master rope 5 is provided in the upper side of the support main body 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frame scaffold, that is, a construction in which a reinforcing rod is further installed between a pair of vertical rods spaced apart from each other and a horizontal rod installed on the upper side of the vertical rod. The frames are erected at intervals, are connected by braces, and the road boards are erected on the building frame. Attach the lower side to the upper side of the vertical rod facing the outer side of the building frame opposite to the building, and stand it on the outer side of the uppermost road plate, and install the master rope above the uppermost road plate. By allowing the vertical rod of the building frame to be mounted from the outer side from the top floor one floor below during the work of standing the main rope to be stretched, it is possible to reduce the possibility of a worker's crash. Regarding the main rope support for frame scaffolding.

[0002]

2. Description of the Related Art Conventionally, particularly in the case of constructing or repairing a medium-high-rise building, a frame scaffold is assembled at a position corresponding to the outside thereof, and a worker uses this to perform a series of operations. .. And this framework scaffold is as shown in FIG. In the figure, a is a building frame, b is a brace, c is a cloth rod with a road board, d is a main rope, and e is a main rope. A building frame a is shown in FIG. 21, which is a reinforcing main rod h between a pair of vertical rods f and f and a horizontal rod g erected on the upper side thereof.
And the horizontal rod g between the vertical rod f and the reinforcement rod rod h.
Further, a reinforcing auxiliary rod i ... Is further installed in parallel with the above, and the whole is formed in a gate shape. In the figure, j is a connecting pin for stacking the building frame a provided on the upper end of the vertical rod f in a multi-tiered manner, and k is a mounting pin for the brace b provided on the side face of the vertical rod f. Then, the frame scaffolding, after standing such building frames a ... at intervals, connects them by braces b ...
In order to provide a passage above, a road plate, for example, a cloth frame c with a road plate in the illustrated example is erected, and these are sequentially stacked at the building frame a ...

By the way, in the process of assembling such a frame scaffold, the dismantling work is also the same, but the work height becomes higher one by one, or the initial work height becomes higher, which involves work at a high place. .. Therefore, if the working height becomes higher than a predetermined height, for example, in the process of performing the assembly work, before the other series of assembly work, as shown in FIG. It is legally obligated to perform a series of assembly work in a state where the parent rope e is tensioned on the outside of the, and the worker is connected to the safety belt wrapped around the waist with the life rope. There is. The master rope e is stretched in a tensioned state by using the master rope pillars d ... Standing with the lower side attached to the upper side of the vertical rod f facing the outside of the uppermost building frame a. Has been done.

On the other hand, as the main rope support d, for example, FIG.
~ Proposals have been made as shown in Fig. 27. This is an upper mounting portion for fixing the position of the pillar main body 1 by vertically inserting the upper part above and below the connecting portion of the vertical rod f of the building frame a with the uppermost reinforcement auxiliary rod i on the lower side of the pillar main body l. m and the lower mounting portion n are provided with a vertical interval. The upper mounting portion m is provided with an insertion opening o through which the connecting pin j at the upper end of the vertical rod f is inserted and which projects upward, and an engagement recess p which is engaged with the horizontal rod g toward the vertical rod f from above. ing. on the other hand,
The lower mounting portion n is provided with a clamp q which is fitted around the outer circumference of the vertical rod f.

Such a master rope support column d is used to stretch the master rope e in a tensioned state, and
For example, when a series of assembling work is completed, the master rope e is set in a relaxed state, the clamp q of the lower mounting portion n is opened and pulled out upward, and then the vertical rod f of the building frame a on the first floor thereof is pulled out. It is attached and made to stand in order from the top toward the top.

[0006]

By the way, in such a main rope support column d, since it is attached to the vertical rod f of the building frame a from above and is erected, the main board support rod d is erected during the standing work of the main rope support column d. The outside of the building, which is on the opposite side of the building, is completely open, leaving room for a worker to fall and is dangerous.

In view of the above-mentioned conventional problems, a master rope for a frame scaffold according to the present invention is a vertical column facing the outer side of the building frame of the top floor of the frame scaffold opposite to the building. The lower side of the rod is attached to the upper side of the rod so that it is erected on the outside of the road plate on the top floor, and the master rope is stretched outside the road plate on the top floor. The purpose is to reduce the possibility of the occurrence of a crash.

[0008]

In order to achieve such an object, in claim 1 of the present invention, a reinforcing rod is further installed between a pair of vertical rods spaced apart from each other and a horizontal rod installed on the upper side thereof. , The building frames that are formed in the shape of a gate are erected at intervals, are connected by braces, and the road boards are erected on the building frames.
On the upper side of the vertical rod facing the outer side of the building frame on the uppermost floor of the frame scaffold configured by stacking these in the building frame part, the lower side is attached to the outside of the road board on the uppermost floor. Stand upright,
It is a strut that stretches the main rope outside the top of the road plate on the top floor, and the upper part of the strut body is inserted vertically above and below the connecting part with the reinforcing rod of the vertical rod of the building frame on the lower side of the strut body. The upper mounting part and the lower mounting part, both of which are fixed in position and open to the side, are provided with a space vertically between them, and at least the vertical rods of the building frame are attached to the upper mounting part and the lower mounting part so that the tip sides of the two blade pieces are at least. The vertical rod of the building frame was initially inserted from the side open side of the upper mounting part and the lower mounting part of the connecting part of the upper rotating blade and the lower rotating blade, the base end side of which is located at the open angle that can be positioned. One of the blade pieces can be pushed and rotated independently in the horizontal state, and after the vertical rod of the building frame has entered, the other of the blade pieces cannot vertically drop the vertical rod of this building frame. The open side is fixed in a fixed state so that it can be closed and the other side of the lower rotating blade is reinforced for the building frame. To provided to be engaged from above, further disclosed a lifeline column forming framework scaffolding provided with a insertion portion of Shintsuna the upper side of the strut body.

[0009]

Then, the master rope is stretched in a tensioned state by using these master rope supports, and when a series of assembling work on this floor of the frame scaffold, for example, is completed, the master rope is relaxed. , Release the fixed state of the upper and lower rotating vanes below this floor, and move it to the outer side opposite to the building by holding the pillar body, The moving blades are pushed by the vertical rods of the building frame and rotate in the direction of releasing them, which can be removed from the building frame of this floor, that is, the building frame under the road board of this floor. Next, this main rope column is attached to the building frame next to this floor, that is, to the upper part of the uppermost building frame on the first floor, above the vicinity of the connection with the reinforcing rod of the vertical rod, again from this floor When pushed in from the side open side of the lower part and the lower mounting part, the upper rotary blade and the lower rotary blade rotate in the direction in which the other of these blade pieces closes the side open side transversely. , Finally, as they become fixed, the other blade piece of the lower rotary blade engages the reinforcing rod from above,
Such a master rope support can be erected.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the main rope column for a frame scaffold according to the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows a frame scaffold, but in FIG.
Is a building frame, 2 is a bracing, 3 is a cloth frame with a road board, 4 is a parent rope, 5
Is a master rope. 2, the building frame 1 is shown. In the figure, 6 is a vertical rod, 7 is a horizontal rod, 8 is a reinforcing main rod, 9 is a reinforcing auxiliary rod, 10 is a connecting pin, and 11 is a mounting pin. .. In addition, the reinforcing rod 12
Is composed of a reinforcing main rod 8 and a reinforcing auxiliary rod 9. And
Since these are the same as the conventional ones, detailed description will be omitted.

On the other hand, details of the master rope support 4 are shown in FIGS.
Is shown in. The main rope support 4 is inserted into the lower part of the support main body 20 vertically above and below the connecting portion with the uppermost reinforcement auxiliary rod 9 of the vertical rod 6 of the building frame 1 to fix the support main body 20 in position. Upper mounting part 21 and lower mounting part that are both open to the side
The upper and lower mounting portions 21 and 22 are provided with two pressing blade pieces 23 and 24 and an engaging blade piece 25.
The connecting portion of the upper rotation blade 27 and the lower rotation blade 28, in which the base end side is connected at an opening angle where at least the vertical rod 6 of the building frame 1 can be positioned, is connected to the upper attachment portion 21 and the lower attachment portion 26. Part 22
At the beginning of the vertical rod 6 of the building frame 1 entering from the side open side, the respective pushing blade pieces 23, 24 are pushed and can be independently rotated in the horizontal state, and the vertical rod 6 of the building frame 1 is Engaging blade piece 2 after entering
The vertical rods 6 of the building frame 1 are fixed so that they can be closed in a fixed state across the laterally open sides in a fixed manner, and the lower blades 28 are fitted with the engaging blade pieces 26. The uppermost reinforcement auxiliary rod 9 of the frame 1 is provided so as to be engageable from above, and further the column body
The insertion part 29 of the master rope 5 is provided on the upper side of 20.

In the illustrated embodiment, a mounting member 40 having a U-shaped cross section is attached to the lower end of the side surface of the column main body 20, and the upper side and the lower side of the mounting member 40 where the central portion is left are the upper mounting portions 21. It is also used as the lower mounting part 22. or,
The notch 41 provided in the central portion of this is opposed to the braces 2
Used to pass through. Then, the upper rotating blade 27
The lower rotation blade 28 is attached to an upper attachment shaft 42 and a lower attachment shaft 43 that are rotatably disposed on the outer side surface of the mounting member 40. Incidentally, reference numeral 44 in the figure denotes a return operation portion provided by bending the upper end of the upper mounting shaft 42. Also, in the figure, 45 is the upper mounting shaft 42
And the bearing of the lower mounting shaft 43. Furthermore, in the figure, 46, 47
Is an opening for rotation of the pressing blade piece 23 of the upper rotation blade 27, and an opening for rotation of the engagement blade piece 25. In the figure, reference numerals 48 and 49 are a downward movement guide opening and a fixing opening, respectively, which are formed to communicate with the rotation opening 47 of the engaging blade piece 25 and the side surface formed below the rotation opening 47 is formed as an inclined edge. Further, in the figure, reference numeral 50 denotes a protrusion provided on the lower end edge of the rotation opening 46 of the pressing blade piece 23. In addition, reference numerals 51 and 52 in the drawing denote a rotating opening of the pushing blade piece 24 of the lower rotating blade 28 and a rotating opening of the engaging blade piece 26. In the figure, 53 and 54 are engagement blade pieces.
26 are upper movement guide openings and fixing openings, which are formed to communicate with the rotation opening 52 of 26 and the side surface formed on the upper side thereof is formed as an inclined edge. In addition, reference numeral 56 in the drawing denotes an engaging recess provided on the lower surface of the engaging blade piece 26 of the lower rotary blade 28 to engage with the uppermost reinforcing auxiliary rod 9 of the building frame 1. Reference numeral 55 in the figure denotes a protrusion provided at the lower edge of the opening 51 for rotation of the pushing blade piece 24. In the structure shown here, the vertical rod 6 of the building frame 1 enters from the side opening sides of the upper mounting part 21 and the lower mounting part 22 to push the moving blade pieces 23 of the upper rotating blade 27 and the lower rotating blade 28. By pushing 24, the engagement relationship with the protrusions 50, 55 provided at the lower end rims of the rotation openings 46, 51 of both is released, and the upper rotation blade 27 rotates by its own weight. While falling, the engaging blade pieces 25 are engaged with the fixing openings 49 to be in a fixed state, and the lower rotation blades 28 rotate to the uppermost reinforcement auxiliary rod 9 of the building frame 1 from above. When the pillar body 20 is engaged and falls down by its own weight, the pillar body 20 is relatively moved upward, and the engaging blade piece 26 is engaged with the fixing opening 54 to be in a fixed state. On the other hand, in these fixed states, the upper rotation blade 27 lifts the return operation portion 44,
Further, the lower rotary vanes 28 can be released by raising the column body 20. Here, the fixing openings 49, 54
It is considered that the opening width is appropriately set so that the upper rotary blade 27 and the lower rotary blade 28 are forcibly engaged with each other. still,
Reference numeral 57 in the drawing denotes spacers provided on the inner side of the upper end and the lower end of the mounting member 40.

Next, FIGS. 14 and 15 show the insertion portion 29 of the master rope 5 provided on the upper side of the column main body 20. In the structure shown here, the holding members 60 of the master rope 5 are made to face each other at the upper ends of the pillar bodies 20, and an insertion space 61 is provided between them. Incidentally, reference numeral 62 in the drawing denotes a semi-cylindrical projection, which is provided so as not to damage the master rope 5. Further, 63 in the figure indicates a binding portion for binding the end portion of the master rope 5.

Further, FIGS. 16 to 18 show another embodiment. 16 and 17, fixed blocks 70 and 71 for fixing the upper rotary blade 27 and the lower rotary blade 28 in a fixed state are provided on the side surface of the mounting member 40 by forming the moving front side of the inclined surface into an inclined surface. It is a thing. On the other hand, FIGS. 18 and 19 show that the upper rotating blade 27 and the lower rotating blade 28 are not provided with fixing means for the upper rotating blade 27 and the lower rotating blade 28, respectively. It is provided.

[0016]

EFFECTS OF THE INVENTION In the above-described main rope prop for frame scaffolding according to the present invention, the lower side thereof is provided on the upper side of the vertical rod facing the outer side opposite to the building of the building frame on the uppermost floor of the frame scaffolding. Installed and erected on the outside of the top floor road plate, and laying the main rope on the outside above the top floor road plate. Since it can be attached to the outside from the side, the room for a worker to fall can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a master rope for a frame scaffold according to the present invention is erected on a frame scaffold and the master rope is stretched.

[Figure 2] Front view showing the building frame

FIG. 3 is a perspective view showing a master rope for a frame scaffold according to the present invention.

[Figure 4] Similarly, a front view

FIG. 5 is a front view showing the main part of the same.

6 is an enlarged sectional view taken along line XX in FIG.

FIG. 7 is an enlarged sectional view taken along line YY in FIG.

FIG. 8 is a perspective view showing an upper mounting portion.

FIG. 9 is a perspective view showing a lower mounting portion.

FIG. 10 is an enlarged cross-sectional view showing a state corresponding to line XX in FIG. 4 before and after operation.

FIG. 11 is an enlarged cross-sectional view showing a state corresponding to the line YY in FIG. 4 before and after the operation.

FIG. 12 is an enlarged front view showing the upper mounting portion and the lower mounting portion before operation.

FIG. 13 is an enlarged front view showing the upper mounting portion and the lower mounting portion after the operation.

FIG. 14 is an enlarged perspective view showing the insertion portion of the master rope provided at the upper end of the pillar body.

[Figure 15] Similarly, an enlarged front view

FIG. 16 is a perspective view showing another embodiment of the upper mounting portion.

FIG. 17 is a perspective view showing another embodiment of the lower mounting portion.

FIG. 18 is a perspective view showing another embodiment of the upper mounting part.

FIG. 19 is a perspective view showing another embodiment of the lower mounting portion.

FIG. 20 is a perspective view showing a state in which a conventional parent rope for frame scaffolding is erected on the frame scaffold and the parent rope is stretched.

[Figure 21] Front view showing the building frame

FIG. 22 is a front view showing a parent rope for a conventional scaffolding frame.

[Figure 23] Similarly, a side view

FIG. 24 is an enlarged front view showing the upper mounting part.

[Figure 25] Similarly, an enlarged side view

26 is an enlarged sectional view taken along the line X′-X ′ in FIG. 22.

FIG. 27 is an enlarged cross-sectional view taken along line Y′-Y ′ in FIG. 22.

[Explanation of sign]

 1 Building frame 2 Brace 3 Cloth frame with road board 4 Parent rope column 5 Parent rope 6 Vertical rod 7 Horizontal rod 8 Reinforcing main rod 9 Reinforcement auxiliary rod 10 Connecting pin 11 Mounting pin 12 Reinforcing rod 20 Strut body 21 Upper mounting part 22 Lower Mounting part 23 Pushing vane piece 24 Pushing vane piece 25 Engaging vane piece 26 Engaging vane piece 27 Upper turning vane 28 Lower turning vane 29 Insertion part 40 Mounting member 41 Notch 42 Upper mounting shaft 43 Lower mounting shaft 44 Return operation part 45 Bearing 46 Rotating opening 47 Rotating opening 48 Lower guide opening 49 Fixing opening 50 Protrusion 51 Rotating opening 52 Rotating opening 53 Upper moving guide opening 54 Fixing opening 55 Projecting 56 Engagement Recess 57 Spacer 60 Holding member 61 Insertion space 62 Semi-cylindrical protrusion 63 Bonding portion 70 Fixed block 71 Fixed block

Claims (1)

[Claims] 1. A reinforcing rod is further erected between a pair of vertical rods spaced apart from each other and a horizontal rod erected on the upper side of the vertical rods. , Connecting with braces, erection road boards on the building frame, and stacking these in the upper and lower multi-stages in the building frame part It is a strut that attaches its lower side to the upper side and stands it on the outside of the uppermost road plate, and stretches the main rope above the uppermost road plate. The upper part of the rod is inserted vertically above and below the connecting part with the reinforcing rod to fix the main body of the rod, and the upper mounting part and the lower mounting part, which are open to the side, are provided with a vertical gap between them. The upper part of the installation part and the lower part of the installation part, in which the tip ends of the two blade pieces are connected at the base end side at an opening angle that allows at least the vertical rod of the building frame to be positioned. At the beginning of the vertical rod of the building frame from the side opening side of the upper mounting part and the lower mounting part, the connecting part of the rotating blade and the lower rotating blade is pushed horizontally and one of the blade pieces is pushed. It is independently pivotable, and after the vertical rod of the building frame has entered, the other of the blade pieces is pivotally attached so that the vertical rod of this building frame cannot be removed and can be closed in a fixed state across these lateral open sides. In addition, the other one of the blade pieces of the lower rotation blade is provided so as to be engageable with the reinforcing rod of the building frame from above, and further, the main rope support for frame scaffolding is provided with the insertion portion of the master rope on the upper side of the support main body.