JP2009215844A - Corner unit of prefabricated scaffold - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily assemble or disassemble the corner section of a scaffold using frames. <P>SOLUTION: In a corner unit of the prefabricated scaffold, gantry frames 1 each formed by horizontally installing a horizontal member 3 on the upper parts of a pair of standard members 2 are so opposed to each other that the horizontal members 3 are parallel to each other, a ledger 6 is installed between the horizontal members 3, and the standard members 2 are connected to each other with a brace 5. The corner unit comprises a corner bar 7 attached between the standard members 2 connected to each other with the brace 5 of the frame 1, a corner strut 14 so attached to the corner bar 7 as to extend vertically upward or vertically downward, a strut connection part 10 so attached to the corner bar 7 that the corner strut 14 is connected to the intermediate part of the corner bar 7 in the longitudinal direction, and a brace connection part 15 so attached to the corner strut 14 that the brace 5 is connected to the corner strut 14. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a frame scaffold that is temporarily installed when a structure such as a building is constructed, and more particularly to a corner unit that is used when a scaffold is assembled by bending the scaffold.

  As this type of scaffolding, the so-called gate-shaped building frames are placed facing each other, and the vertical grounds (or vertical saddles) constituting the building frames are connected with braces, and the horizontal grounds ( Alternatively, a cloth plate (or scaffolding plate) is bridged between the horizontal heel portions) to form one frame, and a necessary number of them are connected in the horizontal and vertical directions. Since the scaffold using the above-described building frame is connected in the direction in which the building frame is opposed, it is configured to extend linearly in the horizontal direction and the vertical direction.

  On the other hand, since it is common to assemble a scaffold so as to surround a structure, a corner portion is always generated in an actual scaffold. Therefore, it is necessary to adopt a special configuration different from the one set of frames described above in the corner portion, and examples thereof are described in Patent Documents 1 to 3. The configuration of the corner portion described in these patent documents is configured to connect the end portion of a series of scaffold components assembled in a straight line to the end side surface of another series of scaffold components. .

  For example, in the frame scaffold described in Patent Document 1, a horizontal beam is bridged on a horizontal member (so-called horizontal ground) in a building frame facing each other in parallel to the scaffolding plate, and another building frame is parallel to the horizontal beam. Between the horizontal member and the horizontal beam in the other building frame, and a handrail provided integrally with the horizontal beam is installed between the horizontal beam and the horizontal beam. It is provided between the column material attached to the building frame and the building frame.

  Further, in Patent Document 2, a base member having the same configuration as the horizontal rail is provided, and an L-shaped handrail is integrated with the base member by a connecting member, and the base member is hung on a horizontal member in a pair of building frames. While passing, the structure which connected the L-shaped handrail to the part (leg pillar) of the leg in a building frame is described. A screw-type universal clamp is used to connect the L-shaped handrail and the pedestal. Further, Patent Document 3 describes a configuration similar to that described in Patent Document 2.

Japanese Patent Laid-Open No. 10-231618 JP-A-9-49316 JP-A-8-232461

  As described above, in the structure of the conventional scaffold, the end building frame in the series of scaffold components assembled in a straight line, and the end frame in the series of scaffold components arranged so as to be orthogonal thereto Are arranged adjacent to each other so as to be orthogonal to each other, and a transfer plate is bridged between them as necessary. Therefore, in order to securely connect the adjacent building frames, in the invention of Patent Document 2, the handrail is connected with a free clamp, and generally connected directly with a free clamp.

  Since the frame scaffolding is constructed using a large number of building frames, cloth boards, and braces, it adopts a structure that can be easily assembled, such as hooking with hooks or fitting into pins, in order to improve workability. On the other hand, if the above-mentioned universal clamp is used, the number of connecting points that require screw tightening work increases, and the number of connecting parts increases, so that the work for assembling and dismantling the scaffolding is increased. The number of man-hours increases, resulting in inconveniences that prevent rapid work.

  In addition, when a free clamp is interposed between the building frames, a gap is generated between the building frames. It is necessary to cover such gaps with a sheet, but the width or length of the sheet is generally an integral multiple, half or one third of the interval between assembled building frames. From the number of sheets according to the number of building frames arranged side by side, the above gaps cannot be covered, and if extra sheets are used, the above gaps can be covered, but the sheets There is an inconvenience that it takes too much time to clean up, for example, it is excessive and the wind does not flutter.

  The present invention has been made paying attention to the technical problem described above, and an object of the present invention is to provide a corner unit that can easily configure the corner portion of the frame scaffold and that does not cause an extra gap. It is what.

  In order to achieve the above-mentioned object, the invention according to claim 1 is arranged such that a gate-shaped building frame in which a horizontal ground is placed on top of a pair of vertical grounds is opposed to each other so that the horizontal grounds are parallel to each other. In the corner unit of the frame scaffolding in which the cloth plate is bridged between the horizontal grounds and the vertical ground is connected with the brace, a corner bar attached between the vertical grounds connected to each other by the bracing of the building frame, and Corner struts attached to the corner bar in a standing state or a suspended state, strut connecting portions provided on the corner bar so as to connect the corner struts to an intermediate portion in the longitudinal direction of the corner bar, and the braces And a brace connecting portion provided on the corner strut so as to be connected to the corner strut.

  According to a second aspect of the present invention, in the first aspect of the invention, the support column connecting portion is slidably fitted to the corner bar and selectively fixed at predetermined predetermined locations on the corner bar. A corner unit of a frame scaffold, comprising a possible sleeve and a fitting portion provided on the sleeve for fitting an end portion of the corner strut.

  According to the invention of claim 1, the corner bar is attached between the vertical grounds corresponding to the pillars in the building frame that are opposed to each other and connected to each other, and the column connecting part provided in the middle part of the corner bar A corner column is erected or the upper end of the corner column arranged on the lower side is connected. Therefore, the corner bar forms the side surface or side edge of the linear structure body in which the building frames are connected in series with the vertical ground, and the corner column is arranged between the vertical grounds in parallel with each vertical ground. Then, the side surface or side edge of the linear structure that connects the building frames in series is formed together with the vertical ground. Therefore, by placing another building frame so that the horizontal ground that is a horizontal member is parallel to the corner bar, the cloth plate that is a scaffolding board is bridged between the corner bar and the horizontal ground in the other building frame, thereby bending A formed passage is formed. In other words, since the corner bar functions as a horizontal land in the building frame, the interval between the other building frame and the corner bar, in other words, the interval between the building frames arranged in different directions at an angle of 90 degrees or close to this. However, it becomes the space | interval which can be connected by the said braces, and these building frames can be connected without using a universal clamp. As a result, the work of assembling and disassembling the bent scaffold is facilitated and can be performed quickly, and there is no gap between the building frames that cannot be connected by the bracing, so that It is possible to cover the entire outer periphery of the scaffolding with a general sheet or a mesh material similar thereto.

  Further, according to the invention of claim 2, since the position of the corner column can be changed, the scaffolding in which the ratio of the interval between the building frames connected by the cloth board or the brace and the width of the building frame is different is also used. Can be diverted.

  The corner unit according to the present invention is used for a scaffold assembled using the above-described conventional gate-shaped building frame, and includes a corner bar that replaces a horizontal ground (horizontal material) in the building frame, It is mainly composed of a corner post instead of a vertical ground (leg pillar). FIG. 1 schematically shows a corner portion configured using a corner unit according to the present invention. A building frame 1 is formed by connecting upper portions of two vertical grounds 2 arranged in parallel to each other by a horizontal ground 3. It is a frame material that forms a so-called gate shape as a whole with the reinforcing member 4 attached between the horizontal ground 3 and each vertical ground 2. The building frames 1 are arranged at regular intervals so that the horizontal grounds 3 are parallel to each other, and are held in an upright state by connecting the vertical grounds 2 with braces 5 arranged to cross each other. Further, in this state, a cloth board (scaffold board or anti) 6 is arranged between the horizontal grounds 3 and hooks 8 provided at the respective end portions are hooked on the horizontal ground 3 so that the building frames 1 are connected to each other and the passageway is connected. It is formed.

  In the corner portion, a corner bar 7 is disposed between the vertical grounds 2 of the building frame 1 connected by the brace 5 and the cloth board 6. An example of the corner bar 7 is shown in FIGS. 2A and 2B. The corner bar 7 has a thickness substantially equal to the vertical ground 2 and a length substantially equal to the interval between the vertical grounds 2 or slightly shorter. It is a pipe material having a length, and hooks 8 that are hooked to the lateral ground 3 are provided on the side surfaces of both ends so as to protrude in the axial direction. Further, plates 9 that sandwich the vertical ground 2 together with the hooks 8 are provided at both ends of the corner bar 7. Accordingly, the corner bar 7 is arranged on the line connecting the centers of the vertical grounds 2 because the hooks 8 are provided on the side surfaces that are off the central axis, but the corner bars 7 are hooked on the horizontal ground 3 while being hooked. When a vertical load is applied to the corner bar 7, a moment is generated in the corner bar 7. However, since the vertical ground 2 is sandwiched between the hook 8 and the plate 9, the corner bar 7 does not rotate around the hook 8 even when a vertical load is applied to the corner bar 7.

  A hook may be attached instead of the plate 9 described above. An example is shown in FIGS. 3A and 3B, and the example shown in FIG. 3A is an example in which hooks 8 of the same direction are attached to the left and right side surfaces of the end of the corner bar 7. Such a configuration can be used on both the left and right sides of the cloth plate 6, so that the assembly workability is improved. Further, the example shown in FIG. 3B is an example in which hooks 8 whose vertical directions are opposite to each other are attached to the left and right side surfaces of the end portion of the corner bar 7. Since the orientation is lost, assembly workability is improved.

  Furthermore, the corner bar 7 may be configured to be directly connected to the vertical ground 2. In that case, a commercially available pipe clamp or steel clamp (not shown) for assembling a single pipe may be used. In that case, it is not necessary to attach other members such as hooks to both ends of the corner bar 7.

  And the support | pillar connection part is provided in the upper and lower two places of the intermediate part of the corner bar 7. FIG. This column connecting portion is for attaching a corner column instead of the vertical ground, and pins 10 are projected in both the upper and lower directions determined by the direction of the hook 8, and this is the column connecting portion. In addition, the position of the pin 10 in the corner bar 7 is the center portion of the corner bar 7 when the width of the building frame 1 is half of the interval between the building frames 1 connected by the brace 5, and the width of the building frame 1 is In the case of 1/3 of the interval between the building frames 1 connected by the brace 5, the corner bar 7 is divided into three equal positions. In other words, the interval between the building frame 1 to which the corner bar 7 is attached and the vertical ground 2 is the same position as the width of the building frame 1.

  The pin 10 may be configured not to be directly attached to the corner bar 7 but to be movable in the axial direction of the corner bar 7. An example of this is schematically shown in FIG. 4, in which a sleeve 11 is movably fitted to the corner bar 7, and pins 10 are attached to the sleeve 11 at two upper and lower positions. Further, a through-hole 12 is formed on the side surface of the corner bar 7 (the side surface when attached to the building frame 1) at the central portion in the longitudinal direction and every 30 cm or 60 cm from here. A hole 13 is formed in the sleeve 11. Therefore, the sleeve 11 is moved to a position where the through holes 12 and 13 coincide with each other, and a stop pin (not shown) is inserted into the through holes 12 and 13, whereby the sleeve 11 and the pin 10 attached thereto are inserted. Is configured to position and prevent rotation. If it is such a structure, it can divert to the scaffold from which the width of the building frame 1 with respect to the space | interval of the building frame 1 differs widely, and the versatility of the corner bar 7 can be improved. FIG. 4 shows an example of a corner bar 7 configured to be connected to the vertical ground 2 by a single clamp C instead of the hook 8. The single clamp C may be a commercially available product, for example, a plate P in which a screw shaft protrudes from a main body portion fixed to the vertical ground 2 by a screw (not shown), and the screw shaft is attached to the end of the corner bar 7. The corner bar 7 may be configured to be held between the vertical grounds 2 and at substantially the same height as the horizontal ground 3.

  The corner struts 14 attached to the pins 10 are for connecting the upper and lower corner bars 7, and, as an example, are constituted by the same pipes as the corner bar 7, and the length thereof is a building connected to the upper and lower sides. It is set to the interval between the horizontal grounds 3 in the frame 1. FIGS. 5A and 5B show an example of the corner strut 14, and a brace connecting portion is provided at each of a position that is lower than the upper end of the corner strut 14 by a predetermined dimension and a position that is higher than the lower end by a predetermined dimension. It has been. This brace connecting part is for connecting the braces and, like the one provided on the conventional building frame, a key (not shown) for retaining is rotatably attached to the tip part. The pin 15 is configured. Note that the pins 15 are preferably provided at equal intervals in four directions. By doing so, there are less restrictions on the orientation when the corner support 14 is used, and the pins 15 can be used for both right and left.

  In the corner portion of the scaffold, a corner bar 7 is attached between the building frames 1 connected vertically. The attachment position is on the side surface in the direction of extending the scaffold, in other words, on the structure (not shown) side. A corner column 14 is arranged between the corner bars 7 and the corner column 11 is fitted and fixed to the pin 10 which is the column connecting portion described above. Other corners 14 and other building frames 1 (hereinafter sometimes referred to as bending side building frames 1) are arranged so as to be parallel to the vertical ground 2 of the building frame 1 adjacent thereto, and this bending The vertical ground 2 in the side building frame 1, the vertical ground 2 in the building frame 1 (hereinafter sometimes referred to as the straight-side building frame 1), and the other vertical ground 2 and the corner column 14 in the bending side building frame 1. Are connected by braces 5. The connection can be performed by fitting a connection through hole formed at an end of each brace 5 to a pin provided in each vertical ground 2 and a pin 15 provided in a corner column 14. .

  In addition, the direction of the pin provided in the vertical ground 2 of the straight-side building frame 1 is 90 degrees different from the position where the brace 5 is attached. Therefore, the bracing 5 that connects the vertical ground 2 of the straight-side building frame 1 and the vertical ground 2 of the bent-side building frame 1 adjacent thereto is, as shown in FIG. In contrast to the configuration in which the through hole is formed in the extending direction, the other connecting portion 5b is bent by 90 degrees, and a through hole formed therein is used.

  Further, the corner strut 14 and the vertical ground 2 of the straight-side building frame 1 adjacent to the corner strut 14 use a brace 5 having a half length of the brace 5 used for other locations or a length of 2/3. This is because the size of each part of a building is usually 30 cm or 3 cm in units of integer multiples. Moreover, the corner support | pillar 14 and the vertical ground 2 in the bending side building frame 1 are connected by the normal bracing 5 currently used for the other location. Thus, the corner struts 14 are provided with the pins 15 protruding in two directions at different angles of 90 degrees, so that the braces 5 in two directions can be connected.

  As described above, the braces 5 that connect the corner struts 14 and the vertical ground 2 in the bending-side building frame 1 are general braces that connect the building frame 1 in the lateral direction, and thus face the corner bars 7. The distance from the bending-side building frames 1 arranged in parallel with each other is the same as the interval between the building frames 1 that are continuous in the horizontal direction. Therefore, the cloth plate 6 can be hooked and arranged between the corner bar 7 provided at the same height as the horizontal ground 3 and the horizontal ground 3 in the bent side building frame 1, and thus the bent path Is formed.

  Therefore, if the above-described corner unit according to the present invention is used, the bending-side building frame 1 can be connected by the brace 5 and the cloth board 6, so that the two building frames 1 can be arranged adjacent to each other in different directions. In addition, it is not necessary to connect them with a universal clamp, and accordingly, the number of building frames 1 to be used can be reduced and the number of work steps such as screw tightening can be reduced. Disassembly can be performed easily and quickly. In addition, since there is no extra gap in the corner, when covering the outer periphery of the scaffold with sheet material, there is no shortage of existing sheet material dimensions, and there is no gap between them. Inconveniences such as an improvement in the performance and an increase in the required sheet material can be avoided.

  In the present invention, the present invention is not limited to the case of forming a corner portion that bends at a right angle, but can also be used when a corner portion having a slightly larger or smaller angle than a right angle is formed. This is possible because a looseness or a gap is provided in each connecting portion. Moreover, you may provide what is called an L-shaped hook for fall prevention etc. generally used conventionally in the connection part of the corner bar 7 and the corner support | pillar 14.

It is a schematic diagram of the corner part of the scaffold using the corner unit which concerns on this invention. It is the front view and top view which show the corner bar. It is a typical fragmentary view which shows the other example of the hook attached to the edge part of the corner bar. It is a front view which shows the example of the corner bar which comprised the support | pillar connection part movably. It is a front view which shows an example of a corner support | pillar. It is a front view which shows an example of the bracing formed by bending one connection part with respect to a vertical ground.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Building frame, 2 ... Vertical ground, 3 ... Horizontal ground, 4 ... Reinforcement member, 5 ... Bracing, 5a ... Connection part, 5b ... Connection part, 6 ... Fabric board (scaffold board or anti), 7, 8 ... Hook, 9 ... Plate, 10 ... Pin, 11 ... Sleeve, 12,13 ... Through hole, 14 ... Corner post, 15 ... Pin.

Claims (2)

A gate-shaped building frame with a horizontal ground placed on top of a pair of vertical grounds is placed facing each other so that the horizontal grounds are parallel to each other, and a cloth board is bridged between the horizontal grounds and the vertical ground is straddled. In the corner unit of the framework scaffold connected in
A corner bar attached between the vertical grounds connected to each other by the braces of the building frame;
A corner post attached to the corner bar in a standing state or a suspended state;
A column connecting part provided on the corner bar so as to connect the corner column to an intermediate part in the longitudinal direction of the corner bar;
A corner unit of a frame scaffold, comprising: a brace connecting portion provided on the corner strut so as to connect the bracing to the corner strut.   The strut linking portion is slidably fitted to the corner bar and can be selectively fixed to a plurality of predetermined predetermined locations on the corner bar, and the corner strut provided on the sleeve. The corner unit of the frame scaffold according to claim 1, further comprising a fitting portion for fitting the end portion.

Images