JP2015151772A - Handrail frame for prefabricated scaffolding, positioning fitting for the same, and hook - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a handrail frame for prefabricated scaffolding, which is excellent in workability on a job site and which dispenses with labor for attachment.SOLUTION: A handrail frame 11 for prefabricated scaffolding, which is attached to the prefabricated scaffolding, comprises both vertical parts 12, and a horizontal part 13 that is positioned between both the vertical parts 12. The one vertical part 12 of the handrail frame 11 for the prefabricated scaffolding is provided with a positioning fitting 31 that is provided with a through-hole 33 for making the vertical part 12 attached in a penetrating manner to a base, and a hook 41 that is attached to a tip of the positioning fitting 31 and locked to a horizontal member 22 of the prefabricated scaffolding.

Description

  The present invention relates to a frame scaffolding handrail frame, a positioning bracket for a frame scaffolding frame, and a hook. Specifically, the present invention relates to a positioning bracket and a hook for a handrail frame for a frame scaffold used for a scaffold for temporary construction.

In a conventional temporary scaffold, a handrail frame mounting bracket of a frame scaffold used for a temporary construction scaffold is used by being attached to the tip of a pipe-shaped handrail, and a hook is attached to the tip of the mounting bracket.
The base end side member of the positioning hook 10 base described in Patent Document 1 has been fixed to the hook member steel material 5a by welding from the beginning. And the hook was integrally formed.
Therefore, it is difficult to replace the hook piece.

Therefore, in the inventions described in Patent Documents 2 to 4, according to the description of these Patent Documents, the “hook piece 51 a” is sandwiched between the “base end side member 50” and the “clamping pieces 50 b and 50 c” in the width direction. ”Was fixed. “A pair of sandwiching pieces (50b), (50c)” is provided, and “the hook member (51)” is sandwiched between these “holding pieces (50b), (50c)”.
Furthermore, “the hook piece 51a is hooked on the horizontal member 2”. It is assumed that a pair of left and right “hooks 5l, 5r” that are attached to the pair of left and right “vertical struts 40l, 40r” of the “handrail body 4” and hooked on the opposing “horizontal members 2, 2” are provided. The “hook member 51” was installed on both sides of the “handrail body 4”.

For this reason, in the invention described in Patent Document 2, according to the description of Patent Document 2, when a hook member having a hook piece is detachably mounted and the hook piece is replaced by deformation or the like, a rivet is attached to the proximal side member 50. It is only necessary to replace the hook member 51 at the front end, which facilitates the replacement.
That is, Patent Document 2 states that “the handrail body 4 disposed between the pedestals 1 and 1 of the frame bodies B and B facing each other and the pair of left and right vertical struts 40l and 40r of the handrail body 4 respectively. In a safety handrail A having a pair of left and right hooks 5l and 5r that are hooked to the opposed horizontal members 2 and 2 that are attached to each other, a base-side member on which the hooks 5l and 5r are fixed to the vertical struts 40l and 40r 50 and a hooking member 51 having a hook piece 51a that is detachably attached to the base end member 50 and is hooked on the horizontal member 2. "(Reference Document 2" Summary ")," The hook piece 51a is deformed. In this case, it is only necessary to replace the hooking member 51, and the hooking member 51 is fixed to the base end side member 50 with the rivet 52, so that it is compared with a conventional hook that is welded and fixed to the vertical member. Hook piece 51a It is possible to facilitate the exchange. "Is described in (references Document 2 [0046]).
The same applies to the cited documents 3 and 4.

Furthermore, in the inventions described in Patent Documents 2 to 4, according to the description of these Patent Documents, “the reinforcing material 46 is provided”. That is, “the vertical struts 40l and 40r are made of hollow pipes as shown in FIG. 5, and the reinforcing members 46 are inserted into the vertical struts 40l and 40r, respectively” (Patent Document 2 [0018]. "These reinforcing members 46 are formed of hollow pipes and are arranged from the lower horizontal joint 43 to substantially the center of the vertical struts 40l and 40r as shown in FIG. 4" (Patent Document 2). [0020]) is described in Patent Documents 2 to 4.
Further, in the inventions described in Patent Documents 2 to 4, the hook pieces are hooked on both horizontal members 2.

JP 2006-328652 A JP 2012-219455 A JP 2012-219456 A JP 2012-219457 A

However, in the inventions described in Patent Documents 2 to 4, “from the base end member 50 to which the hook 5 is welded and fixed to the vertical struts 50l and 50r, and the hook member 51 to be detachably attached to the base end member 50. Thus, a hook piece 51a that is hooked on the horizontal member 2 is formed on the hooking member 51. "(Patent Document 2 [0045]) In the inventions described in Cited Documents 2 to 4, the vertical struts 50l and 50r are used. The base end side member 50 was fixed by welding or the like. For this reason, there is a problem that the positioning bracket cannot be attached together with the base end side member 50 to the vertical column of the handrail frame for the frame scaffolding without the conventional positioning bracket.
Further, in the inventions described in Patent Documents 2 to 4, the reinforcing member 46 is provided, and is “disposed from the lower horizontal joint 43 to substantially the center of the vertical struts 40l and 40r”. Since it is not provided from the lower end, the reinforcing effect has a limited problem.
Further, in the inventions described in Patent Documents 2 to 4, since the hook pieces are hooked on both the horizontal members 2, there is a problem inferior workability in the temporary scaffold.

The purpose of the present invention is to
An object of the present invention is to make it possible to attach a hook and a fixing bracket to a positioning bracket of a handrail frame for a framework scaffold that has already been distributed.

A handrail frame for a framework scaffold according to the present invention is:
The vertical part of the frame scaffolding frame which is composed of both vertical parts and a horizontal part located between both vertical parts and is attached to the frame scaffolding has a through-hole attached to the base part through the vertical part. Positioning brackets provided;
A hook attached to the end of the positioning bracket and locked to the horizontal member of the frame scaffold,
Is provided.

Or
A handrail frame for a framework scaffold according to the present invention is:
It consists of both vertical parts and a horizontal part located between both vertical parts, and is attached to one vertical part of the frame scaffolding handrail frame that is attached to the frame scaffold with the vertical part penetrating the base. A positioning bracket provided with a through hole;
A hook attached to the end of the positioning bracket and locked to the horizontal member of the frame scaffold,
Is provided.

Or
A handrail frame for a framework scaffold according to the present invention is:
It consists of both vertical parts and a horizontal part located between both vertical parts, and penetrates one vertical part of the frame scaffolding handrail frame that is attached to the frame scaffolding with the vertical part penetrating the base part A positioning bracket provided with a hole;
A hook attached to the end of the positioning bracket and locked to the horizontal member of the frame scaffold,
A reinforcing material having a length more than twice the length from the lower end to the positioning bracket is inserted into the vertical portion of the frame scaffolding handrail frame on the side where the positioning bracket and the hook are attached.

Or
A handrail frame for a framework scaffold according to the present invention is:
It consists of both vertical parts and a horizontal part located between both vertical parts, and penetrates one vertical part of the frame scaffolding handrail frame that is attached to the frame scaffolding with the vertical part penetrating the base part A positioning bracket having a hole and a curved portion at the tip;
It is attached to the tip of the positioning bracket, and has a hook that is locked to the horizontal member of the frame scaffold,
A positioning bracket that is provided with a through-hole that is attached through the base in the other vertical portion of the handrail frame for the frame scaffolding, has a curved portion at the tip, and is engaged with the horizontal member of the frame scaffold by the curved portion. When,
Is provided.

Or
The positioning bracket of the handrail frame for the frame scaffold according to the present invention is
Both vertical parts and horizontal parts located between the vertical parts are combined and attached to the vertical part of the handrail frame for the frame scaffolding that is attached to the frame scaffolding through the through hole provided in the base of the positioning bracket. ,
A hook attached to the end of the positioning bracket and locked to the horizontal frame of the frame scaffold,
Is provided.

Or
The positioning bracket of the handrail frame for the frame scaffold according to the present invention is
Combine both vertical parts and the horizontal part located between the vertical parts, and install it in one vertical part of the frame scaffolding handrail frame that is attached to the frame scaffolding, through the through hole provided at the base of the positioning bracket As well as
A hook attached to the end of the positioning bracket and locked to the horizontal frame of the frame scaffold,
Is provided.

Or
The positioning bracket of the handrail frame for the frame scaffold according to the present invention is
The vertical part and the horizontal part located between the vertical parts are combined and attached to one vertical part of the frame scaffolding handrail frame attached to the frame scaffold through the through-hole provided in the base,
A positioning bracket having a curved portion at the tip;
A hook attached to the end of the positioning bracket and locked to the horizontal member of the frame scaffold,
A positioning bracket that is provided with a through-hole that is attached through the base in the other vertical portion of the handrail frame for the frame scaffolding, has a curved portion at the tip, and is engaged with the horizontal member of the frame scaffold by the curved portion. And comprising.

Or
The positioning bracket of the handrail frame for the frame scaffold according to the present invention is
Both vertical parts and horizontal parts located between the vertical parts are combined and attached to the vertical part of the frame scaffolding handrail frame attached to the frame scaffolding through the through-hole provided in the base,
The width becomes narrower as you go to the tip,
A fixing bracket that is provided with a through-hole to be attached by penetrating the bolt, which becomes narrower as it goes to the tip between the tip and the base,
A nut mounting portion that is recessed so as to be received in a through hole provided in the fixing bracket, and a hook portion that is provided on both sides of the nut mounting portion and is locked to a wall around the through hole of the fixing bracket. The parts are attached to the positioning bracket in a direction intersecting with the longitudinal direction of the positioning bracket and the hook, respectively, and fixed brackets provided to be offset from each other,
A hook attached to the end of the positioning bracket and locked to the horizontal member of the frame scaffold,
Is provided.

According to the present invention, the hook and the fixture can be attached later.
The conventional handrail frame for frame scaffolds was intended to prevent the worker from falling to the inside of the handrail frame, that is, the scaffold side, but in the present invention, the worker can be prevented from falling to the outside of the handrail frame.
An object of the present invention is to make it possible to attach a hook and a fixing bracket to a positioning bracket attached to a handrail frame for a framework scaffold that is already distributed.

It is a front view of the use condition of the positioning bracket of the handrail frame for frame scaffolds and the handrail frame for frame scaffolds of the Example which concerns on embodiment of this invention. It is a top perspective view of the positioning bracket of the handrail frame for frame scaffolding of the Example which concerns on embodiment of this invention. It is a bottom perspective view of the positioning bracket of the handrail frame for frame scaffolding of the example according to the embodiment of the present invention. It is a bottom surface exploded perspective view of the positioning bracket of the handrail frame for frame scaffolding of the Example which concerns on embodiment of this invention. It is a bottom view of the positioning bracket of the handrail frame for frame scaffolding of the Example which concerns on embodiment of this invention. It is a partially expanded bottom perspective view of the positioning bracket of the handrail frame for frame scaffolding of the example according to the embodiment of the present invention. It is a perspective view of the positioning bracket of the handrail frame for frame scaffolding of the Example which concerns on embodiment of this invention. It is a top perspective view of the nut fixture which concerns on the positioning bracket of the handrail frame for frame scaffolds of the Example which concerns on embodiment of this invention. It is a bottom perspective view of the nut fixture concerning the positioning bracket of the handrail frame for the frame scaffolding of the example according to the embodiment of the present invention. It is a top view of the use condition of the attachment bracket of the handrail frame for frame scaffolding of the Example which concerns on embodiment of this invention. It is a front view of the use condition of the attachment bracket of the handrail frame for frame scaffolding of the Example which concerns on embodiment of this invention.

11 is a handrail frame for a frame scaffold. The frame scaffolding handrail frame 11 is a frame scaffolding handrail frame 11 used for a scaffold for temporary construction, and is formed in a U-shape having a vertically open vertical portion 12 and a horizontal horizontal portion 13. Consists of one pipe. The vertical portion 12 is composed of U-shaped left and right pillar portions that are opened downward, and the horizontal portion 13 is an intermediate portion of a U-shaped pipe that is opened downward, and two parallel pieces attached in parallel to the intermediate portion. It consists of a pipe.
Between the two vertical parts 12, 12, the two horizontal parts 13, 13 are positioned laterally. Between the vertical portions 12, 12, intermediate struts 14, 14 are positioned between the upper and lower horizontal portions 13, 13 in the vertical direction.
21 is a pedestal of the framework scaffold. The frame scaffolding handrail frame 11 is attached between the pedestals 21 and 21 of the frame scaffold. Reference numeral 22 denotes a horizontal member of the frame scaffold.

Reference numeral 31 denotes a positioning bracket for a handrail frame. Reference numeral 41 denotes a hook attached to the positioning bracket 31 for the handrail frame.
A through hole 33 having a substantially outer shape of the vertical portion 12 is provided at the base of the positioning metal 31. The vertical portion 12 of the frame scaffolding handrail frame 11 is attached to the through hole 33 so as to penetrate therethrough. The positioning bracket 31 is attached so as to penetrate the vertical portion 12 of the handrail frame 11 made of a pipe.
As the positioning bracket 31 goes from the base to the distal end side, the distal end becomes thinner. Through holes 35 and 36 for weight reduction are provided from the base to the tip of the positioning metal 31.

The hook 41 is attached to one of the vertical portions 12 of the handrail frame 11 with the hook 41 attached to the tip, and the through hole 33 is attached through the base of the positioning bracket 31. A hook 41 is not attached to the other vertical portion 12, and a through-hole 33 is penetrated and attached at the base of the positioning bracket 31.
The distal end of the positioning metal 31 has a curved portion 34 having a semi-curved shape even when the hook 41 is removed. The hook 41 is removed, and the curved portion 34 is placed in contact with the other horizontal member 22 of the pedestal 21 of the frame scaffold. Since the curved portion 34 has a curved shape, the curved portion 34 is easily fitted to the horizontal member 22.
In other words, the positioning bracket 31 is welded by attaching the hook 41 and locking it to the horizontal member 22, and by removing the hook 41 and contacting the horizontal member 22 of the pedestal 21 of the frame scaffolding at the curved portion. Two methods of use are possible.

  The hook 41 is attached to one positioning bracket 31 on the right side in FIG. The other positioning metal 31 on the left side in FIG. 1 is locked in advance to a horizontal pipe which is a horizontal member 22 for attaching a scaffold without attaching a hook 41 to the tip.

The hook 41 has a base 43 and a tip 44 as shown in FIG. The base 43 has an L-shaped cross section. The base 43 on the side of the positioning bracket 31 attached along the side surface and the top surface of the positioning bracket 31 of the hook 41 is wide, and the distal end portion where the curved portion 42 to be locked to the horizontal member 22 is provided has an improved workability. It is getting thinner.
The curved portion 42 at the tip forms a curved shape combined with the curved portion 34 of the hook 41. The distal end bending portion 42 is thin and has a distal end curved downward so as to be easily locked to the horizontal member 22, and is attached to the distal end of the positioning bracket 31.
The positioning bracket 31 for the handrail frame is connected by the hook 41 being locked to the horizontal member 22 of the pedestal 21 of the frame scaffold.
The hook 41 can be detached from the positioning metal 31 by a bolt 51 and a nut 52.

Reference numeral 61 denotes a fixing bracket. The fixing bracket 61 is welded with a nut 52.
The fixing bracket 61 is provided with a nut mounting portion 62 that is recessed so as to be received in the through hole 35 provided in the positioning bracket 31 at the center. On both sides of the nut mounting portion 62, there are a hook portion 63 and a hook portion 64 that are locked to the wall around the through hole 35 of the positioning member 31, so that the mounting is easy.
In a state where the fixing bracket 61 is housed in one opening of the through hole 35, the hook portion 63 and the hook portion 64 intersect with the longitudinal direction of the positioning bracket 31 and the hook 41, that is, the longitudinal direction, respectively. It is attached to the positioning bracket 31 in the direction. In addition, the hook part 63 and the hook part 64 are provided so as to be offset from each other. By shifting the position, the hook portion 63 and the hook portion 64 are positioned at the target positions sandwiching the nut 52 as a whole, and the attachment of the fixing bracket 61 to the through hole 35 is stabilized.
Reference numerals 45 and 46 shown in FIG. 4 denote positioning protrusions. The positioning protrusions 45 and 46 are provided on the back surface of the base portion 43 in a protruding shape. The positioning protrusions 45 and 46 are fitted into the through holes 35 and 36, respectively, and are positioned.
The hook 41 is fixed by being attached to the nut 52 of the fixing bracket 61 by a bolt 51 which is an attachment bolt.

In the embodiment shown in FIGS. 1 to 9, the hook portion 63 and the hook portion 64 are locked to a wall 37 provided in the lateral direction or the width direction around the through hole 35 of the positioning member 31 to be engaged with the nut 52. The fixing bracket 61 is supported.
Since the fixing fitting 61 is supported by the hook portion 63 and the hook portion 64 in the lateral direction intersecting the longitudinal direction of the hook 41, it is possible to prevent displacement and to have excellent strength.

  As shown in FIG. 6, since the nut 52 is located behind the hooks 63 and 64, the hook 41 and the fixture 61 are fixed using the bolts 51. However, the bolt 51 does not protrude from the position determination bracket 31.

Reference numeral 15 denotes a reinforcing material. The reinforcing member 15 is made of a metal pipe, and is twice the length from the lower end to the positioning bracket 31 inside the vertical portion 12 of the frame scaffolding handrail frame 11 made of the metal pipe on the side where the hook 41 is attached. The reinforcing material 15 having the above length is inserted.
As shown in FIG. 1, when the reinforcing member 15 is attached, it is effective for stress distribution of the vertical portion that is locked to the horizontal member 22 of the pedestal 21 and receives stress.
When the hook 41 is locked to the horizontal member positioning bracket 31 of the pedestal 21 of the frame scaffold, the reinforcement is sufficiently performed.

The frame scaffolding handrail frame 11 is continuously attached to the left and right, so that the adjacent frame scaffolding handrail frame hook 41 does not interfere.
A scaffolding plate is bridged between the horizontal members 22 where the positioning bracket 31 adjacent to the pedestal 21 of the frame scaffold is locked or the tip of the positioning bracket 31 of the positioning bracket 31 is locked. The handrail frame 11 is positioned on the outer side surface of the scaffold plate.

10 and 11, reference numeral 71 denotes a mounting bracket.
A pipe that is a vertical portion 12 of the handrail frame 11 is passed through the base. The vertical pipe which is the pedestal 21 of the frame scaffold is inserted into the opening 73, and the opening is closed and fixed with the locking pin 72.
Reference numeral 81 denotes an abutting metal fitting which is attached to the upper portion of the vertical portion 12 of the handrail frame 11.

DESCRIPTION OF SYMBOLS 11 Handrail frame 12 for frame scaffold Vertical part 13 Horizontal part 21 Pillar 22 of frame scaffold Horizontal member 31 of frame scaffold Positioning bracket 33 Through-hole 34 Curved part 41 Hook 42 Curved part

Claims (8)

The vertical part of the frame scaffolding frame which is composed of both vertical parts and a horizontal part located between both vertical parts and is attached to the frame scaffolding has a through-hole attached to the base part through the vertical part. Positioning brackets provided;
A hook attached to the end of the positioning bracket and locked to the horizontal member of the frame scaffold,
A handrail frame for a framework scaffold, comprising: It consists of both vertical parts and a horizontal part located between both vertical parts, and penetrates one vertical part of the frame scaffolding handrail frame that is attached to the frame scaffolding with the vertical part penetrating the base part A positioning bracket provided with a hole;
A hook attached to the end of the positioning bracket and locked to the horizontal member of the frame scaffold,
A handrail frame for a framework scaffold, comprising: It consists of both vertical parts and a horizontal part located between both vertical parts, and penetrates one vertical part of the frame scaffolding handrail frame that is attached to the frame scaffolding with the vertical part penetrating the base part A positioning bracket provided with a hole;
A hook attached to the end of the positioning bracket and locked to the horizontal member of the frame scaffold,
A reinforcing material having a length more than twice the length from the lower end to the positioning bracket is inserted into the vertical portion of the handrail frame for the frame scaffolding on the side where the positioning bracket and the hook are attached.
A handrail frame for a framework scaffold, comprising: It consists of both vertical parts and a horizontal part located between both vertical parts, and penetrates one vertical part of the frame scaffolding handrail frame that is attached to the frame scaffolding with the vertical part penetrating the base part A positioning bracket having a hole and a curved portion at the tip;
It is attached to the tip of the positioning bracket, and has a hook that is locked to the horizontal member of the frame scaffold,
A positioning bracket that is provided with a through-hole that is attached through the base in the other vertical portion of the handrail frame for the frame scaffolding, has a curved portion at the tip, and is engaged with the horizontal member of the frame scaffold by the curved portion. When,
A handrail frame for a framework scaffold, comprising: The vertical part of the handrail frame for the frame scaffolding that is attached to the frame scaffolding by combining both the vertical parts and the horizontal part located between the vertical parts is attached through the through hole provided in the base of the positioning bracket. ,
A hook attached to the end of the positioning bracket and locked to the horizontal frame of the frame scaffold,
A positioning bracket for a handrail frame for a framework scaffold, comprising: Combine both vertical parts and the horizontal part located between the vertical parts, and install it in one vertical part of the frame scaffolding handrail frame that is attached to the frame scaffolding, through the through hole provided at the base of the positioning bracket As well as
A hook attached to the end of the positioning bracket and locked to the horizontal frame of the frame scaffold,
A positioning bracket for a handrail frame for a framework scaffold, comprising: The vertical part and the horizontal part located between the vertical parts are combined and attached to one vertical part of the frame scaffolding handrail frame attached to the frame scaffold through the through-hole provided in the base,
A positioning bracket having a curved portion at the tip;
A hook attached to the end of the positioning bracket and locked to the horizontal member of the frame scaffold,
A positioning bracket that is provided with a through-hole that is attached through the base in the other vertical portion of the handrail frame for the frame scaffolding, has a curved portion at the tip, and is engaged with the horizontal member of the frame scaffold by the curved portion. And a positioning bracket for a handrail frame for a frame scaffold. Both vertical parts and horizontal parts located between the vertical parts are combined and attached to the vertical part of the frame scaffolding handrail frame attached to the frame scaffolding through the through-hole provided in the base,
The width becomes narrower as you go to the tip,
A fixing bracket that is provided with a through-hole to be attached by penetrating the bolt, which becomes narrower as it goes to the tip between the tip and the base,
A nut mounting portion that is recessed so as to be received in a through hole provided in the fixing bracket, and a hook portion that is provided on both sides of the nut mounting portion and is locked to a wall around the through hole of the fixing bracket. The parts are attached to the positioning bracket in a direction intersecting with the longitudinal direction of the positioning bracket and the hook, respectively, and fixed brackets provided to be offset from each other,
A hook attached to the end of the positioning bracket and locked to the horizontal member of the frame scaffold,
A positioning bracket for a handrail frame for a framework scaffold, comprising:

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