JP2013185377A - Scaffold device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a scaffold device which is advantageous in cost and excellent in handleability, and does not deteriorate assembling workability.SOLUTION: A scaffold device includes one and the other reference scaffolds A which have a planar shape of a rectangle and are separately arranged on a curved line in a plan view, and a footboard S which is stretched over both reference scaffolds A. Each reference scaffold A includes horizontal members 2 which forms a pair in the longitudinal direction, and a scaffolding board 4 which is hooked to the pair of horizontal members 2. The footboard S includes a body part S1 which is stretched over both separately arranged reference scaffolds A, a locking part S2 which is installed on one end of the body part S1, and a slide part S3 which is installed on the other end of the body part S1. The locking part S2 is hooked to the horizontal member 2 in one reference scaffold A, and the slide part S3 is laminated on the scaffolding board 4 in the other reference scaffold A.

Description

  The present invention relates to a scaffold device, and more particularly to an improvement of a scaffold device suitable for use in a structure or a building whose outer periphery is curved in a plan view.

  As a scaffold device suitable for use in a structure or building whose outer periphery is curved in a plan view, for example, there is a proposal disclosed in Patent Document 1, and this is a framework scaffold that is spaced apart on a circular line in a plan view. Are connected with a tread for connecting.

  In other words, the frame scaffolding stands in a state where a pair of building frames formed in a gate shape in which the top ends of a pair of vertical members are integrally connected by a cross member, with a pair or two sets of cross braces having a predetermined interval. On the other hand, the scaffolding plate is bridged between the top ends of the pair of building frames, that is, the pair of cross members in the longitudinal direction in the frame scaffolding.

  On the other hand, the tread board is formed by integrally providing a panel on a pair of ribs that are parallel to each other with a gap, and has grips at both ends of one of the ribs. Enables connection to a cross member to be hung.

  Therefore, in the proposal disclosed in Patent Document 1, the horizontal members that form the top end of the building frame in the frame scaffolding in which the holding brackets in the tread are spaced apart are separated from each other on the circular line. It becomes possible to connect the frame scaffolds to be arranged with treads.

Japanese Patent Laid-Open No. 9-4217

  In the scaffold device in the above proposal, there is no problem in that it is possible to connect frame scaffolds that are spaced apart on a circular line in plan view by using a tread. Considering the actual usage, it may be pointed out that there is a minor defect.

  That is, in the scaffolding device in the above proposal, the tread is formed by integrating a panel with a pair of ribs arranged in parallel with a gap, and has a gripping metal at both ends of one rib.

  For this reason, it is essential that the above-mentioned treads are respectively connected to the frame scaffolds that are spaced apart from each other, so that precise dimension management is required when the frame scaffolds are spaced apart on a circular line. As a result, assembly workability may be deteriorated.

  Further, in the above-described step board, when the distance between the frame scaffolds that are spaced apart from each other is different, it is necessary to prepare a step board that has different intervals between the grips provided at both ends. In addition, many types having different length dimensions must be prepared, and there is a problem that the cost tends to be high from the viewpoint of cost.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a scaffold apparatus that improves assembly workability and is advantageous in terms of cost.

  In order to achieve the above-described object, the configuration of the present invention is divided into one and the other reference scaffolds that are spaced apart from each other on a curved line in a plan view with a rectangular planar shape, and a tread that spans both the reference scaffolds. Both of the above-mentioned stepping plates are spaced apart from each other in a scaffold device comprising a cross member in which the reference scaffold is paired in the longitudinal direction and a scaffolding plate that is hooked on the pair of cross members. A main body spanned over the reference scaffold, a locking portion provided at one end portion of the main body portion, and a slide portion provided at the other end portion of the main body portion. It is assumed that the slide plate is stacked on the scaffold plate in the other reference scaffold, and is hung on the cross member for latching the scaffold plate in the reference scaffold.

  Since it is sufficient that the main body portion of the tread board is bridged between the one and the other reference scaffolds that are spaced apart from each other, it is necessary to have a grip fitting provided on the rib as long as it has a predetermined mechanical strength. As compared with the case where there is a grip metal fitting provided on the rib, it is possible to reduce the weight of the tread, to improve the handleability and to be advantageous in terms of cost.

  Since the latching part in the tread is hooked to a cross member for latching the scaffolding plate in one of the reference scaffolds and connected to one of the reference scaffolds, it is compared with the case where each is connected to a reference scaffold that is spaced apart. Thus, the structure of the tread can be simplified, and precise dimensional management is not required between the reference scaffolds that are spaced apart from each other, so that assembly workability is improved.

  Since the slide part in the step board is laminated on the scaffold board in the other reference scaffold, as long as it has a predetermined mechanical strength, it may be formed thin, contributing to a reduction in the weight of the tread and handling. As well as improving the cost, it is advantageous in terms of cost.

  As a result, according to the scaffold device of the present invention, when forming a scaffold suitable for use in a structure or building whose outer periphery is curved in a plan view, it is advantageous in terms of cost, and handling is improved. As a result, the assembly workability can be improved.

It is a top view which shows the scaffold apparatus of this invention. It is a schematic perspective view which shows an example of the reference | standard scaffold which comprises a scaffold apparatus. It is a figure which shows an example of the connection structure of the cross member and support | pillar in a reference | standard scaffold, (A) is a partial plane sectional view of a support | pillar, (B) is a partial elevation vertical sectional view of a support | pillar, (C) is a transverse (D) is a partial elevation view of a cross member. It is a figure which shows the state by which the scaffold board in the reference | standard scaffold was latched by the cross member, (A) is a fragmentary top view, (B) is a fragmentary longitudinal cross-sectional view. It is a perspective view which shows the tread which comprises a scaffold apparatus. It is a figure which shows the utilization condition of the tread shown in FIG. 5, (A) is a top view, (B) is a longitudinal cross-sectional view. It is a figure which shows the handrail provided in the scaffold apparatus, (A) is an elevation, (B) is a longitudinal cross-sectional view shown by the YY line position in (A), (C) is a top view. is there.

  The present invention will be described below based on the illustrated embodiments. As shown in FIG. 1, the scaffold device of the present invention has one and the other reference scaffolds A that are rectangular in plan view and are spaced apart on a curved line in a plan view (not shown), and both the reference scaffolds A. And a tread board S to be passed.

  It is important that the reference scaffold A is formed so that the tread board S of the present invention can be placed and connected. Further, a plurality of reference scaffolds A are provided on the curved line in plan view. Therefore, it is important that a plurality of the same structure can be easily obtained.

  From the viewpoint of easily obtaining a plurality of ones having the same structure, as the reference scaffold A, for example, a paired scaffold called a wedge-type scaffold connected using a wedge or a gate type called a building frame is used. It is possible to present a frame scaffold using the forming member, or a single tube scaffold formed by combining single tubes.

  Among them, for example, as shown in FIG. 2, the assembly scaffold includes four columns 1 positioned at the four corners of the rectangle and four columns that vertically connect the upper ends of the four columns 1. Of the four cross members 2 and 3, and a scaffolding plate 4 spanning the pair of cross members 2 in the longitudinal direction of the reference scaffold A among the four cross members 2 and 3.

  The support column 1 is made of a steel round pipe as shown in the figure and has a length of approximately 1.8 meters. Although not shown, the support column 1 can be continuously connected by an upward connection such as by using a connection member. A connecting portion J shown schematically in the part is provided, and the connecting portions J are used to connect the cross members 2 and 3 to the support column 1.

  In addition, about the connection part J, you may be provided in the intermediate part of the support | pillar 1, and may be provided in the base B which connects the lower end of the support | pillar 1. Since the base B is provided with the connecting portion J, the cross members 2 and 3 can be connected to the base B, and the scaffold plate 4 can be bridged to the pair of cross members 2. become.

  The cross members 2 and 3 are made of steel round pipes as shown in the figure, and are classified into two types having a large and small length. The short cross member 2 is, for example, approximately 0.9 meter long. The long cross member 3 is, for example, approximately 1.8 meters. Then, a pair of long cross members 3 are arranged in the longitudinal direction of the reference scaffold A, and a pair of short cross members 2 are arranged in the short direction of the reference scaffold A, and are respectively connected to the columns 1.

  Note that an oblique member 5 is connected to a pair of supports 1 positioned in the longitudinal direction of the reference scaffold A in the four supports 1, and the diagonal member 5 is also connected to a connecting portion J provided on the support 1. It is provided using. Moreover, the connection part J provided in the intermediate part of the support | pillar 1 enables the connection of the handrail H as shown in FIG. 7, and also enables the connection of a reinforcing material (not shown).

  By the way, the connection part J provided in the support | pillar 1 may be comprised arbitrarily, as long as the connection to the support | pillar 1 of the horizontal members 2 and 3 is enabled, FIG. An example of the connection structure which enables connection of is shown.

  Explaining a little, this connection structure includes a flange as a connection portion J integrally provided on the outer periphery of the support column 1 by welding, and a knuckle 6 integrally provided at one end of the cross members 2 and 3 by welding or the like. And a wedge 7. Incidentally, the wedge 7 is preferably connected and held to the cross member 2 or 3 or the knuckle 6 by a wire or the like.

  As shown in FIG. 3 (A), the flange that is the connecting portion J has eight holes Ja that are formed through the thickness of the flange in the vertical direction and provided in the radial direction. Connection of eight knuckles 6 and the like to the flange is allowed.

  Since the connecting portion J provided on the support column 1 is made of the above-described flange, in the support column 1 at the four corners, not only the cross members 2 and 3 but also the diagonal member 5 can be connected. If the reference scaffold A is continuous in a straight line instead of being spaced apart, the reference scaffold can be continued.

  In this embodiment, the knuckle 6 is cast, and as shown in FIG. 3 (D), the longitudinal section is formed in a lateral U shape so that the so-called opening is directed outward along the axial direction of the cross members 2 and 3. A flange is inserted between them so as to cover the hole Ja formed in the flange from above and below.

  The knuckle 6 has a hole 6a penetrating the knuckle 6 in the vertical direction, and the wedge 7 is inserted into the hole 6a formed in the knuckle 6, and the wedge 7 is forged. It has a well-known wedge shape, and is inserted into the hole 6a formed in the knuckle 6 and inserted into the hole Ja formed in the flange, so that the knuckle 6 is fixedly connected to the flange, and the cross member 2 , 3 are connected to the column 1.

  That is, in the knuckle 6, the wedge 7 is inserted into the through-hole 6 a with the flange facing, so that the flange is pressed against the knuckle 6 and the knuckle 6 is pressed against the column 1. Therefore, the knuckle 6 and the flange can be connected, that is, the support 1 and the cross members 2 and 3 can be connected.

  The connection structure described above has eight holes Ja formed in the radial direction on the flange, so that the three members can be connected to the support column 1. As long as the cross member 2 can be connected, a connection structure of another configuration may be selected.

  The scaffolding plate 4 is made of an aluminum alloy, has a length of approximately 1.8 meters, a width of, for example, 0.45 meters, and an axial end that is the longitudinal direction in the horizontal direction in the figure. The hook part 4a is provided in the part (see FIG. 4A), and the hook part 4a is hooked on the cross member 2 in the reference scaffold A (see FIG. 4B).

  The hook portion 4a is intermittently formed in a comb-tooth shape along the width direction of the scaffold plate 4, and the hook portion of the continuous scaffold plate 4 is usually provided in the concave portion 4b between the hook portions 4a. 4a is fitted.

  That is, although not shown, when the reference scaffold A is used in a straight line as a normal scaffold, the scaffold plate 4 is also continuous, and at this time, in the recess 4b between the hook parts 4a. The hook portion 4a of the continuous scaffolding plate is fitted and hooked to the cross member 2.

  Incidentally, in the present invention, as will be described later, as shown in FIG. 1, one reference scaffold A in the reference scaffold A that is spaced apart, that is, the reference scaffold A disposed on the left side in FIG. Thus, one end of the tread plate S is fitted into the recess 4 b of the scaffold plate 4.

  The two scaffold plates 4 are arranged in parallel in the drawing, because the length of the cross member 2 is set to 0.9 m. When the length of the material 2 is 1.35 meters or more, the scaffolding plates 4 are juxtaposed in three or more.

  Next, as shown in FIG. 1 and FIG. 6, the tread board S is stretched over the reference scaffold A that is spaced apart and covers the so-called empty space that appears between the reference scaffolds A that are spaced apart from above. A so-called scaffold that is continuous with the scaffold board 4 in the reference scaffold A to be arranged is formed to ensure the safety of workers passing on the scaffold board 4 or to prevent, for example, a tool or the like from falling. .

  By the way, in the present invention, the reference scaffolds A that are spaced apart are arranged so that their axial directions do not coincide with each other. However, from the viewpoint of forming a so-called scaffold, they are connected to each other and have so-called integrity. It is important that it is secured.

  Therefore, prior to the description of the footboard S, a method of connecting the reference scaffolds A that are spaced apart will be described below based on the drawings. That is, in the illustrated embodiment, the reference scaffold A that is spaced apart is, as shown in FIG. 1, a pin joint P on one side that is the lower side in the drawing, and an upper side in the drawing. It is assumed that the rod connection R is on the other side.

  When connecting the reference scaffolds A that are spaced apart, the one side is the pin joint P. The distance between the reference scaffolds A that are spaced apart is narrow on one side, and rods, that is, cross members are used. This is because the connection on the other side is made a rod connection based on the fact that a rod, that is, a cross member can be used for easier connection.

  Incidentally, in the rod connection R that connects the other side of the reference scaffold A that is spaced apart, it is preferable to use a telescopic rod R1 (see FIG. 7), and the reference scaffold A that is spaced apart. When it becomes difficult for the one side connection to be the pin joint P, the rod connection R is used instead.

  Since there is an empty space between the reference scaffolds A that are separated as described above, that is, between the scaffolding plates 4, the step board is closed so as to close the empty space on the plane, that is, from above. S is bridged over the reference scaffold A that is spaced apart.

  Hereinafter, the tread S will be described. The tread S is made of an aluminum alloy plate and has a predetermined mechanical strength, while being reduced in weight. On the other hand, as shown in FIG. It has a stop portion S2 and a slide portion S3, and further has a toe plate portion S4 as shown.

  In addition, although the tread plate S is shown in the drawing, the main body S1, the locking portion S2, the slide portion S3, and the toe plate portion S4 are integrally formed by punching a plate material whose surface is anti-slip processed. However, the present invention is not limited to this and may be formed by an arbitrary method.

  1 and 6A, the state in which the scaffold plate 4 in the reference scaffold A on the right side is hooked on the cross member 2 in each drawing is not shown in detail, but this is a complicated drawing. Of course, the right scaffolding plate 4 is hooked on the cross member 2.

  The main body S1 is sufficient to be formed so as to have a strength that does not easily bend even if the weight of the worker acts because the body S1 closes the space between the reference scaffolds A that are spaced apart. Further, it is not necessary to provide a reinforcing rib or the like on the back surface, which contributes to weight reduction of the member and reduction of product cost of the member.

  Incidentally, the main body portion S1 has a length dimension and a width dimension which are larger than the empty so-called length dimension and width dimension generated between the reference scaffolds A that are spaced apart, and the reference scaffold A that is spaced apart. It is also possible to cope with a case where the length and width of the vacant space between the two are increased.

  The locking portion S2 is one end portion of the main body portion S1, that is, the left end portion in FIG. 6, and in the illustrated case, fitting to the concave portion 4b of the scaffold plate 4 of the reference scaffold A is permitted, and the reference scaffold A And a hook portion Sa hooked on the cross member 2.

  Incidentally, the locking portion S2 has an axial direction, that is, a direction protruding from one end of the main body portion 31 is along the axial direction of the scaffolding plate 4 in the one reference scaffold A on the left side in FIG. .

  And in the latching | locking part S2, the hook part Sa is intermittently formed in the width direction which becomes an up-down direction in FIG. 6 (A), and between the hook parts Sa is made into the recessed part Sb, and this recessed part Sb is a reference | standard scaffold. The hook part 4a in the scaffolding plate 4 of A is fitted.

  On the other hand, the slide portion S3 is the other end portion of the main body portion S1, which is the right end portion in FIG. 6 and a so-called free end portion, and in the illustrated case, the other reference scaffold A on the right side in FIG. It is laminated on the scaffold plate 4.

  Incidentally, the slide part S3 has an axial direction, that is, the direction protruding from the other end of the main body part S1 is along the axial direction of the scaffolding plate 4 in the one reference scaffold A on the right side in FIG. The length in the axial direction is not as long as the main body portion S1, but has a length that is much larger than that of the locking portion S2, for example, the other side between the reference scaffolds A that are spaced apart. Consideration is given to responding to the increase in the interval.

  Therefore, in the step board S of the present invention, even when the interval between the reference scaffolds A that are spaced apart is widened, it is possible to cope without preparing another step board S. It is possible to cope with the case where the interval between the reference scaffolds A becomes narrow.

  In the illustrated embodiment, the tread plate S is provided with a toe plate portion S4 in the main body portion S1, and the toe plate portion S4 is erected at an appropriate height from the outer edge of the main body portion S1. Therefore, for example, it is possible to prevent the tools that have fallen from the operator's hand to the main body S1 from dropping from the tread board S.

  Incidentally, although the toe plate portion S4 is integrally formed with the main body portion S1 in the drawing, it may be provided in the main body portion S1 by so-called retrofitting as long as the toe plate portion S4 functions. .

  By the way, in this invention, in order to block the space generated between the reference scaffolds A that are spaced apart, the tread board S is spanned over the reference scaffold A that is spaced apart, but the reference scaffold A is spaced apart. In this case, when the above vacancy is made a vacancy on a plane, a vacancy on an elevation surface appears to be continuous with the vacancy on this plane.

  That is, from the viewpoint of a person such as an operator standing on the scaffolding plate 4 of the reference scaffold A that is spaced apart, if the reference scaffolds A that are spaced apart are respectively extended upwards, the extended separation arrangement is assumed. Between the reference scaffolds A, vacancies on the elevation surface appearing continuously with the vacancies on the plane.

  In that case, from the viewpoint of providing a handrail between the support columns 1 in each reference scaffold A, it is preferable that the handrail is provided in the space on the above-described elevation surface. I will explain H a little. 7 that are not different from the configuration described above are given the same reference numerals in FIG. 7 and the description thereof is omitted unless necessary.

  As is well known, the handrail H prevents a person such as an operator standing on the scaffolding board 4 from falling from the scaffolding board 4, and is optional as long as this person can be prevented from falling. In the present invention, as shown in FIGS. 7A, 7B, and 7C, the left and right struts 1 that form a pair of reference scaffolds A that are spaced apart from each other are formed. In addition to being connected, the pair of reference scaffolds A is connected to a rod R1 that is formed to be extendable and connectable to the rod R, that is, is erected.

  Incidentally, when the handrail H is connected to the column 1 at the upper side and connected to the rod R1 at the lower side, the handrail H can be provided more effectively, but the function as the handrail H is ensured. If there is, for example, the configuration may be simplified simply by being connected to the support column 1 at the upper side or by being erected on the lower rod R1.

  Returning to the illustration, the handrail H includes a handrail body 11 and a support column 12 that supports the handrail body 11, and the handrail body 11 is connected to the support column 1 in the pair of reference scaffolds A. It is assumed that the support column 12 is connected to a telescopic rod R1 that connects the pair of reference scaffolds A to each other.

  The handrail main body 11 is composed of one body 11a and the other body 11b, each of which is formed by bending a pipe in a lateral U shape in the front shape, and the other body 11b is connected to the one body 11a so as to be able to protrude and retract. It is supposed to be done.

  Thereby, the handrail main body 11 can extend the width of the front, and can cope with this even if the interval between the columns 1 in the pair of reference scaffolds A is different. In the handrail main body 11, the length-adjusted posture is maintained by tightening the butterfly bolt 11c.

  Further, in the handrail main body 11, the one body 11 a and the other body 11 b each have a hook 11 d, and the hook 11 d can be removably attached to a hole Ja of a flange as a connecting portion J provided on the column 1. It is supposed to be hung.

  On the other hand, the support column 12 is made of a pipe and integrally has a handrail body 11 at the upper end portion, and the lower end portion is connected to the rod R1 using the socket 12a. As shown in FIG. 7 (B), the socket 12a is formed to have a downward angle U-shaped cross-sectional shape that covers the rod R1 from above, and the wedge 12b is fitted to the lower end portion so that the rod R1 It is said that it will be fixedly installed in

  In the above description, the reference scaffold A constituting the scaffold device of the present invention is spaced apart on the curved line in plan view. However, from the intent of the present invention, the reference scaffold A is circular in plan view. Needless to say, they may be spaced apart from each other on the line, and the operation and effects in that case are not different.

  In the above description, the reference scaffold A is composed of a set scaffold. However, the present invention can be embodied as long as the scaffold plate 4 having the hook portion 4a formed in a comb shape can be bridged. In this sense, a framed scaffold or a single-pipe scaffold may be used instead of the scaffold but not shown.

  In the above description, the scaffold plate 4 has the hook portion 4a formed in a comb-teeth shape. However, the step board S of the present invention has the hook portion Sa, and the hook portion Sa is the reference scaffold. If it is hung on the cross member 2 that forms A, it can be said that the scaffold plate 4 does not have to have the hook portion 4a formed in a comb shape.

  That is, although not shown, the scaffolding plate 4 has plate-like hooks at both ends in the width direction, and the scaffolding plate 4 is set to be bridged over the reference scaffolding A by hooking the hooks on the cross member 2. Even in this case, as long as the reference scaffold A has the cross member 2, the tread board S of the present invention can be used.

DESCRIPTION OF SYMBOLS 1,12 Posts 2,3 Cross member 4 Scaffold plate 4a, Sa hook part 4b, Sb Recessed part 5 Diagonal material 6 Knuckle 6a Through hole 7, 12b Wedge 11 Handrail body 11a One body 11b Other body 11c Butterfly bolt 12a Socket A Reference scaffold B base H handrail J connection part Ja hole P pin joint R rod connection R1 rod S step board S1 body part S2 locking part S3 slide part S4 toe plate part

Claims (6)

One and the other reference scaffolds that are spaced apart from each other on a curved line in plan view with a rectangular planar shape, and a tread that spans both of these reference scaffolds,
In the scaffold device having a cross member in which the reference scaffold is paired in the longitudinal direction and a scaffold plate latched on the pair of cross members,
A main body portion that spans the two reference scaffolds in which the treads are spaced apart, a locking portion that is provided at one end portion of the main body portion, and a slide portion that is provided at the other end portion of the main body portion. ,
The locking portion is hooked on the cross member in the one reference scaffold,
The scaffold device, wherein the slide portion is laminated on the scaffold plate in the other reference scaffold.   The locking portion has an axial direction along the axial direction of the scaffold plate of the one reference scaffold, and the slide portion has an axial direction along the axial direction of the scaffold plate of the other reference scaffold. Item 2. The scaffold device according to Item 1.   3. The scaffold device according to claim 1, wherein the main body portion includes a toe plate portion that stands up from an outer edge of the main body portion.   The reference scaffold has four struts that are positioned at the four corners of the rectangle, and four cross members that are connected to the upper ends of the four struts to connect the four struts vertically and horizontally. The scaffold device according to claim 1, 2, or 3, wherein the scaffold plate is latched to a pair of transverse members in the longitudinal direction of the four transverse members.   The spaced-apart reference scaffolds are connected to the struts in the spaced-apart reference scaffolds on either the inner circumference side or the outer circumference side by pin joints, and on either the inner circumference side or the outer circumference side. The scaffold device according to claim 1, 2, 3, or 4, wherein the support pillars in the spaced apart reference scaffolds are connected by rod connection.   There is a handrail that is detachably connected to the struts that form the pair of reference scaffolds that are spaced apart from each other, or that is detachably erected on a telescopically formed rod that rod-connects the pair of reference scaffolds. The scaffold device according to claim 1, claim 2, claim 3, claim 4 or claim 5.

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