JP2019031837A - Stair handrail for temporary scaffolding - Google Patents

Abstract

To provide a stair handrail for temporary scaffolding which is easy to handle and install, and can be adapted to the installation height restrictions from the stairs even after installation.SOLUTION: A stair handrail for temporary scaffolding 1 used with stairs 105 bridged between horizontal members of a temporary scaffold comprising a support 101 provided with a mounting portion 104 on a support body 103 and the horizontal member fixed to the mounting portion 104 of the support 101, and comprises an upper fixing member 10 and a lower fixing member 20 which are provided at both ends of a handrail main body 2 at a position above a stair mounting portion 104a. In the stair handrail for temporary scaffold 1, the upper fixing member 10 is configured to be fixable to a handrail attachment portion 104b, and the lower fixing member 20 is configured to be fixable to the support body 103 at a position above the handrail attachment portion 104b.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a stair railing for temporary scaffolding for fall prevention that is fixed to a column along a staircase for temporary scaffolding spanned between horizontal members in a temporary scaffolding used at a construction work site or the like.

  As shown in FIG. 17, a temporary scaffold 100 used at a construction work site or the like has a plurality of support columns 101 arranged in a girder direction (direction along the wall surface of the building) and a beam direction (perpendicular to the wall surface of the building). A temporary scaffold in which horizontal members made of steel pipes are attached to struts adjacent to each other in the direction of the beam, and a scaffold plate 102 is provided between the horizontal members adjacent to each other between the beams. Constructed by running over. Here, the column is provided with attachment portions 104 at regular intervals on a column main body 103 made of a steel pipe, and by fixing a horizontal member to the attachment portion 104, a temporary scaffold building frame is assembled.

  The scaffolding plate 102 of this temporary scaffold is provided over a plurality of floors at different height positions, and a staircase 105 spanned between different horizontal materials is used for raising and lowering the different scaffolding plates 102. . Since this staircase is vacant on the side, a stair railing is usually provided to prevent falling.

  By the way, as such a stair railing, various things, such as patent document 1 to patent document 4, are known, for example.

  For example, Patent Document 1 (Japanese Patent Laid-Open No. 2002-97800) discloses a configuration in which a handrail frame is directly fixed to a side surface of an inclined column that constitutes a staircase. Patent Document 2 (Japanese Patent Laid-Open No. 2003-193675) discloses a configuration in which a stair railing is fixed to a side girder of a staircase itself and a column adjacent to the staircase.

  On the other hand, Patent Document 3 (Japanese Patent Laid-Open No. 2011-122401) and Patent Document 4 (Design Registration No. 1449433) disclose a structure in which a stair railing is not fixed to a staircase but fixed to a column adjacent to the staircase. Has been. The stair railing of this structure is a rod-shaped member, and has a structure provided with a fixing member for connecting to a flange as an example of the mounting portion 104 provided on the column at both ends.

  In these Patent Documents 3 and 4, the stair railings are arranged over the entire lateral length of the stairs by fixing the fixing members at both ends to one or two flanges above the height at which the stairs are attached. Thus, the space on the side of the stairs can be sealed. The stair handrail of this configuration is lighter and easier to handle than the stair handrails described in Patent Documents 1 and 2, and it is only necessary to fix the fixing members at both ends to the flanges above the staircase. Therefore, there is an advantage that the mounting work is easy.

JP 2002-97800 A JP 2003-193675 A JP 2011-122401 A Design Registration No. 1449433

  However, all of the stair railings of Patent Documents 3 and 4 fix the fixing members at both ends to the flange, but the flange provided on the column main body 103 is, for example, every 450 mm, etc. The installation interval is fixed.

  In addition, there is a restriction that the height at which the stairs handrail is provided must be a predetermined height A or more (for example, 300 mm or more) from the stairs, and the height determined by this restriction is the installation of the flange. There was a case that did not fit due to the interval.

  In particular, at the lower end portion of the stairs, the step 105a of the stairs 105 protrudes upward from the inclined column 105b of the stairs. Therefore, the height B from the step 105a of the stairs to the handrail of the stairs is determined by the above restrictions. Insufficiently, there was a case where the problem of not being consistent with the above-mentioned restrictions occurred.

  Therefore, the technical problem to be solved by the present invention is to provide a stair railing for temporary scaffolding that can be easily handled and attached and can be adapted to the installation height restriction from the stairs even after installation. It is.

  In order to solve the above technical problem, the present invention provides a stair railing for temporary scaffolding having the following configuration.

According to the first aspect of the present invention, the strut body is spanned between the horizontal members of the temporary scaffolding provided with struts provided with attachment portions at predetermined intervals and horizontal members fixed to the attachment portions of the struts. A temporary staircase handrail for a temporary scaffold, which is used together with a staircase and includes an upper fixing member and a lower portion fixing member fixed to the support column at both ends of a handrail main body at a position above the stair attachment portion provided with the horizontal member. And
The upper fixing member located on the upper end side of the handrail main body is configured to be fixable with a handrail attaching portion which is an attaching portion located above the staircase attaching portion,
The lower fixing member located on the lower end side of the handrail main body is configured to be fixed to the column main body at a position higher than the handrail attaching portion, and provides a temporary staircase handrail for a temporary scaffold.

  According to the 2nd aspect of this invention, the said attaching part is comprised so that it may have a some attachment position around a support | pillar, The stair railing for temporary scaffolds of the 1st aspect characterized by the above-mentioned is provided.

  According to a third aspect of the present invention, the mounting portion is a flange made of a plate-like member provided with the through hole. The staircase for temporary scaffold according to the first or second aspect, Provide handrails.

  According to a fourth aspect of the present invention, the upper fixing member is configured as a hook having a claw that can be inserted into the through-hole from the upper side. Providing stair railings for scaffolding.

  According to the fifth aspect of the present invention, the lower fixing member is configured to have a U-shaped cross section and sandwiches the support column receiving portion configured to be fitted into the support column from the opening portion, and the opening portion of the support column receiving portion. A scaffolding plate according to any one of the second to fourth aspects is provided, comprising: a closing member that is fixed to the opposite side wall and blocks the opening to prevent the support column from falling off.

  According to a sixth aspect of the present invention, the closing member is formed of a wedge-shaped member, and the opening is closed by being inserted through a wedge insertion hole provided in the side wall. A stair railing for a temporary scaffold according to an aspect is provided.

  According to the seventh aspect of the present invention, the lower fixing member is rotatably fixed to the handrail body via an attachment portion provided on the handrail body, and is orthogonal to the length direction of the handrail body. A stair railing for temporary scaffolding according to any one of the first to sixth aspects is provided, wherein the stair railing is provided so as to be reversible in a direction to be performed.

According to an eighth aspect of the present invention, the mounting portion has a pair of flanges extending in the horizontal direction and provided with a rotating shaft extending in the vertical direction, and parallel to each other.
The lower fixing member includes a stair railing for temporary scaffolding according to a sixth aspect, characterized in that the lower fixing member has a connecting portion that is connected to the flange by the rotating shaft.

  According to a ninth aspect of the present invention, there is provided the staircase handrail for temporary scaffold according to any one of the first to eighth aspects, wherein the handrail main body is configured in a bar shape.

  According to the present invention, the staircase handrail for temporary scaffolding has a lower fixing member positioned on the lower end side of the handrail main body fixed to the column main body at a position higher than the handrail mounting portion. It can be secured sufficiently, and the height from the part protruding upward such as a step can be attached so as to satisfy the restriction of the handrail installation height.

It is a figure which shows the state which attached the stair railing for temporary scaffolds concerning 1st Embodiment of this invention to the temporary scaffold. It is a partial expansion perspective view of the support | pillar used for a temporary scaffold. It is a partial expansion perspective view which shows the connection state of the fixing member of the stair railing for temporary scaffolding of FIG. 1, and a support | pillar. It is the elements on larger scale which show the state which looked at the connection state of the fixing member of the stair railing for temporary scaffolding of FIG. 1, and a support | pillar from another angle. It is an expansion perspective view which shows the structure of the upper side fixing member of the stair railing for temporary scaffolds of FIG. FIG. 2 is a partially enlarged plan view showing a state of connection between an upper fixing member and a column of the temporary scaffolding handrail for FIG. 1. It is an expansion perspective view which shows the structure of the lower side fixing member of the stair railing for temporary scaffolds of FIG. It is an expansion perspective view which shows the state seen from another angle which shows the structure of the lower side fixing member of the temporary scaffolding stairs handrail of FIG. FIG. 3 is a partially enlarged plan view showing a state of connection between a lower fixing member and a support column of the temporary scaffolding stairs handrail of FIG. 1. It is the elements on larger scale of the support | pillar of the other structure used for the temporary scaffold which attaches the stair railing for temporary scaffolds of this invention. It is a figure which shows the state which attached the stair railing for temporary scaffolds concerning 2nd Embodiment of this invention to the temporary scaffold. It is an expansion perspective view which shows the structure of the upper side fixing member of the stair railing for temporary scaffolds of FIG. It is an expansion perspective view which shows the structure of the lower side fixing member of the stair railing for temporary scaffolds of FIG. FIG. 12 is an enlarged perspective view showing a state in which the lower fixing member of the temporary scaffolding stairs handrail shown in FIG. 11 faces one side when viewed from the handrail main body. FIG. 12 is an enlarged perspective view showing a state in which a lower fixing member of the temporary scaffolding stair handrail of FIG. 11 faces the other side as seen from the handrail main body. It is a top view which shows the position where the stair railing for temporary scaffolds of FIG. 11 is attached with respect to a staircase. It is a perspective view explaining the structure of the building frame for temporary scaffolds which attaches a scaffold board.

  Hereinafter, a scaffold plate according to each embodiment of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a diagram showing a state in which a temporary scaffolding stairs handrail according to a first embodiment of the present invention is attached to a temporary scaffold. The temporary scaffolding handrail 1 for the temporary scaffold according to the present embodiment is used together with a staircase spanned between horizontal members (not shown) of the temporary scaffold 100. As shown in FIG. 1, the temporary scaffold 100 is composed of a plurality of columns 101 erected in a plurality of rows at predetermined intervals along the outer periphery of the building, and horizontal members laid between the columns. The

  The support column 101 can be used by connecting a plurality of support columns in the length direction. For example, the support column 101 is provided with a flange 104 as an example of a mounting portion provided at regular intervals, for example, every 45 cm in the present embodiment, on a support column body 103 formed of a metal pipe having a diameter of about 45 mm. The flange 104 corresponds to an example of an attachment portion, and as shown in FIG. 2, is a plate-like member having through holes 106 at four locations around the column main body 103. Each of the flanges 104 provided on the column main body 103 has the same structure regardless of the attachment position. However, in this embodiment, the flanges to which the staircase is locked and the horizontal member is fixed are the staircase flange 104a and the staircase flange 104a. The flange that is located above and to which the stair railing is connected is referred to as a handrail flange 104b, and the name is distinguished at the mounting position. The staircase flange 104a corresponds to an example of a staircase attachment portion, and the handrail flange 104b corresponds to an example of a handrail attachment portion.

  The staircase 105 provided in the temporary scaffold 100 is bridged in an oblique direction between two horizontal members having different heights. The distance between the locking hooks 105c and 105d provided at both ends of the staircase 105 is determined so that it can be engaged with two horizontal members having different heights in the distance between the columns 101. The upper locking hook 105d is locked to the height of the stair flange 104a that is four (up 180 cm) above the lower locking hook 105c.

  The temporary scaffolding handrails 1 for temporary scaffolding are fixed to the column 101 obliquely so as to be substantially parallel to each other along the stairs 105. The temporary scaffolding stairs handrail 1 includes an upper fixing member 10 connected to the handrail main body 2 and the handrail flange 104b, and a lower fixing member 20 fixed to the column main body 103.

  The handrail main body 2 is a rod-like member having a length that can be disposed obliquely along the staircase 105 between the columns disposed at a predetermined interval C. In the present embodiment, as described above, the handrail main body 2 is 180 cm higher than the staircase flange 104a. It is configured to be slightly shorter than between the handrail flanges 104b.

  The handrail main body 2 can use a metal cylindrical pipe or the like, and are provided with attachment portions 3 and 4 for attaching the upper fixing member 10 and the lower fixing member 20 to both ends. In order to fix the mounting direction of the upper fixing member 10 and the lower fixing member 20, the mounting portions 3 and 4 are configured so that the side surfaces have a planar shape, the end of the cylindrical pipe is deformed, or another member is welded. Is provided.

  As shown in FIGS. 3 and 4, the upper fixing member 10 is engaged with the handrail flange 104b by inserting the tip portion through the through hole 106 of the handrail flange 104b. The through-hole 106 through which the tip is inserted has a through-hole 106a (two struts on which a horizontal member is installed) on the side where the staircase 105 is provided with respect to the strut, that is, on the two struts 101 to be locked. However, it may be the outer through hole 106b or the through hole 106c located on the side facing the column on which the staircase is constructed.

  The lower fixing member 20 is fixed to the column main body 103 at a position above the handrail flange 104b. The distance from the handrail flange 104b is not particularly limited, and may be determined as appropriate according to the length of the handrail main body 2. However, in the present embodiment, the distance is fixed about 10 cm above the handrail flange 104b. As will be described later, the lower fixing member 20 is fixed to the column main body 103 after the upper fixing member 10 is fixed.

  As shown in FIG. 5, the upper fixing member 10 is configured by a hook member 11 configured in a plate shape, and is welded to the handrail body 2 with its rear end inserted into the attachment portion 3 or a pin (not shown) or the like. It is fixed via a member. In the present embodiment, the upper fixing member 10, the handrail main body 2, and the attachment angle are fixed. However, the attachment angle of both may be variable within an angle range of a predetermined range.

  At the tip of the hook member 11 is provided a locking hook 12 extending downward to be inserted into the through hole 106 of the handrail flange 104b, and the tip 13 of the locking hook 12 is on the side of the handrail main body 2 to prevent falling off. It is arranged to be curved. Further, the angle of the lower edge 14 of the hook member 11 is adjusted so as to be in the horizontal direction when the column is fixed, along the upper surface of the handrail flange 104b.

  The upper fixing member 10 is first fixed when the temporary scaffolding stair railing 1 is attached to the column. Specifically, after attaching the upper fixing member 10 to the handrail flange 104 b, the lower fixing member 20 is fixed to the column main body 103. The upper fixing member 10 is attached to the handrail flange 104b by supporting the temporary scaffolding stair rail 1 in a state where the tip 13 of the locking hook 12 can be inserted into the through hole 106 and penetrating the locking hook 12. Insert into hole 106. Thereafter, in order to attach the lower fixing member 20 to be described later, the tip 13 of the locking hook 12 of the upper fixing member 10 is rotated by turning the stair railing 1 for temporary scaffolding in the direction of lying down with the locking hook 12 as a fulcrum. The upper fixing member 10 is hardly pulled upward by being caught by the peripheral portion of the through hole 106.

  As shown in FIGS. 7 and 8, the lower fixing member 20 includes a column receiving part 21 configured to be fitted into the column, and a wedge member 25 that closes the opening 24 of the column receiving part 21.

  The strut receiving portion 21 is fixed to the attachment portion 4 of the handrail main body 2. In the present embodiment, the attachment angle between the column receiving part and the handrail body 2 is fixed so as to be constant, but it may be provided so that the angle can be changed.

  The column receiving portion 21 is configured to have a substantially U-shaped cross section including an intermediate wall 23 fixed to the attachment portion 4 of the handrail body 2 and opposite side walls 22a and 22b provided at both ends of the intermediate wall 23. ing. Between the side walls 22a and 22b, an opening 24 capable of accommodating the column main body 103 is formed.

  In the present embodiment, since the upper fixing member 10 is attached to the inner through hole 106a, the opening 24 is configured to open outward. That is, the attachment position of the temporary scaffolding stair railing 1 according to this embodiment to the temporary scaffolding 100 may be determined according to the opening direction of the opening 24.

  As shown in FIG. 9, the opening 24 between the side walls 22 a and 22 b is configured to be approximately equal to the outer diameter of the column main body 103 accommodated in the opening 24. The side wall 22b is provided with a relief portion 22c that is bent so that the opening side spreads outward.

  The wedge member 25 closes the opening 24 by being inserted into the wedge through holes 26a and 26b provided in the side walls 22a and 22b, respectively. The wedge member 25 is provided with a tip protrusion 25b for retaining at the tip portion of the wedge body 25 that is configured to become thinner toward the front.

  The wedge through hole 26a provided in the side wall 22a is configured to have a size through which the tip protrusion 25b of the wedge member 25 can pass. On the other hand, the wedge through hole 26b provided in the other side wall 22b is configured to have such a size that the wedge main body 25 can be inserted but the tip protrusion 25b cannot be inserted. Therefore, as shown in FIG. 8, the wedge member 25a is arranged so as to be supported by the side wall 22b when the opening 24 is not closed, and the tip portion thereof is arranged in the escape portion 22c, 103 is not interfered when accommodated in the opening 24.

  The lower fixing member 20 is attached to the column main body 103 after the upper fixing member 10 is locked to the handrail flange 104b as described above. As a precondition, the wedge member 25 is moved to the open position shown in FIG. 8, and the upper fixing member 10 is locked to the handrail flange 104b. Thereafter, with the upper fixing member 10 as a fulcrum, the temporary scaffolding handrail 1 is moved in a direction in which the lower end portion comes into contact with the column main body 103, and the column main body 103 is inserted into the opening 24 of the lower fixing member 20 from the inner side of the column 101. Fit. As described above, the position of the column main body 103 to which the lower fixing member 20 is locked is slightly above the handrail flange 104b, the length dimension of the handrail main body 2 and the column receiving portion 21 and the handrail main body 2. A fixed angle is designed.

  After the column main body 103 is fitted into the opening 24, the wedge member 25 is inserted into the wedge hole 26 a of the side wall 22 a, the opening 24 is closed, and the column main body 103 is fixed so as not to drop out of the opening 24. (See FIG. 9). In addition, the wedge through hole 26a of the side wall 22a is provided at a position lower than the wedge through hole 26b provided in the other side wall 22b in order to prevent the inserted wedge member 25 from falling off due to vibration or the like.

  The temporary scaffolding stairs handrail 1 according to this embodiment attached to the temporary scaffold 100 is fixed so as to be substantially parallel along the stairs 105 as shown in FIG. Further, the mounting position to the column 103 is such that the upper fixing member 10 on the upper side is locked to the handrail flange 104b and the lower fixing member 20 on the lower side is fixed to be above the handrail flange 104b. The height from 105 to the stair railing 1 for temporary scaffolding can be sufficiently secured at both the upper end (D in the figure) and the step 105c (E in the figure) on the lower end. The height of the handrail can satisfy the restriction of the handrail installation height.

  Further, since the upper fixing member 10 locks the hook member 11 in the through-hole 106 of the flange, and the lower fixing member 20 is simply fixed by the wedge member 25 by inserting the column main body into the opening, the mounting is easy. In addition, it can be attached in a standing state from the scaffolding plate 102 of the temporary scaffolding 100, and the attachment work can be performed in an easy posture, and handling is easy.

  Further, in the temporary scaffolding stair rail 1 according to the present embodiment, the attachment positions of the upper fixing member 10 and the lower fixing member 20 are different. For this reason, the handrail flange 104b to which the upper fixing member 10 is attached is not used for fixing the lower fixing member 20 of another staircase handrail 1 for temporary scaffolding. Therefore, as shown in FIG. 3, two staircase handrails 1 for temporary scaffolding having the same configuration can be fixed in succession by one support column 101.

(Second Embodiment)
FIG. 11: is a figure which shows the state which attached the stair railing for temporary scaffolds concerning 2nd Embodiment of this invention to the temporary scaffold. The temporary scaffold 100 in which the stair railing 31 according to the present embodiment is used is the same as the temporary scaffold in the first embodiment.

  The temporary scaffolding stairs handrails 31 are fixed to the support columns 101 obliquely so as to be substantially parallel to each other along the stairs 105. The temporary scaffolding stairs handrail 31 includes an upper fixing member 40 connected to the handrail main body 32 and the handrail flange 104 b, and a lower fixing member 50 fixed to the column main body 103.

  The handrail main body 32 is a frame-shaped member having a length that can be disposed obliquely along the stairs 105 between the columns disposed at a predetermined interval C. The handrail main body 32 is configured in a frame shape with diagonal members 32a and 32b arranged in parallel with each other vertically and connecting members 32c and 32d extending along the support column. By using such a frame-shaped handrail main body 32, it can be set as the staircase handrail arrange | positioned in several height by one attachment operation | work.

  A metal cylindrical pipe or the like can be used for the handrail main body 32, and a mounting portion 34 for mounting the lower fixing member 50 is provided on the lower connecting member 32d.

  As shown in FIG. 12, the upper fixing member 40 is directly welded to the connecting member 32c at the upper end. The upper fixing member 40 has substantially the same configuration as the upper fixing member 10 according to the first embodiment.

  On the other hand, as shown in FIG. 13, the attachment portion 33 provided on the lower connecting member 32d has a set of parallel sets extending in a substantially horizontal direction so that the direction of the opening of the lower fixing member can be changed. It is configured as a U-shaped member having a flange 34. The attaching portion 33 is connected to a connecting portion 57 provided on the lower fixing member 50 and fixes the lower fixing member 50. The lower mounting portion 33 and the mounting portion 57 of the lower fixing member 50 are rotatably connected by pins or the like, and the orientation of the lower fixing portion 50 is changed depending on the mounting direction of the stair rail 30 as will be described later. It is possible.

  As shown in FIG. 12, the upper fixing member 10 is engaged with the handrail flange 104b by inserting the tip portion through the through hole 106 of the handrail flange 104b. As shown in FIG. 16, the through-hole 106 through which the tip is inserted has a through-hole 106 a (horizontal material on the inner side with respect to the two struts 101 to be locked, that is, the side where the staircase 105 is provided with respect to the strut. The two through-holes 106a) facing each other with respect to the two support columns 107 are preferable because the distance from the floor staircase 105 is shortened. However, the outer through hole 106b may be used.

  The lower fixing member 50 is fixed to the column main body 103 at a position above the handrail flange 104b. The distance from the handrail flange 104b is not particularly limited. In addition, as will be described later, the lower fixing member 50 has a direction orthogonal to the length direction of the handrail main body, that is, with respect to the length direction of the handrail main body according to the attachment position on the handrail flange 104b. It can be reversed to the left and right.

  The lower fixing member 20 is fixed to the column main body 103 at a position above the handrail flange 104b. The distance from the handrail flange 104b is not particularly limited, and may be determined as appropriate according to the length of the handrail main body 2. However, in the present embodiment, the distance is fixed about 10 cm above the handrail flange 104b.

  As shown in FIGS. 13 to 15, the lower fixing member 50 includes a column receiving part 51 configured to be fitted into the column, a wedge member 55 that closes the opening 54 of the column receiving part 51, and a lower attachment. A connecting portion 57 is provided that is connected to the portion 33 so as to be rotatable about an axis extending in the vertical direction.

  The connecting portion 57 is formed in a pair of flange shapes provided so as to sandwich the attachment portion 33 of the handrail main body 32 in the vertical direction, and is connected to the attachment portion 33 of the handrail main body 32 so as to be rotatable around the vertical axis. To do. In the present embodiment, the mounting angle around the horizontal axis between the column receiving portion and the handrail main body 32 is fixed so as to be constant.

  As shown in FIG. 14, the column receiving portion 51 has a substantially U-shaped cross section including an intermediate wall 53 connected to the connecting portion 57 and opposite side walls 52 a and 52 b provided at both ends of the intermediate wall 53. It is configured. Between the side walls 52a and 52b, an opening 54 capable of accommodating the column main body 103 is formed.

  In this embodiment, since the upper fixing member 40 is attached to the inner through hole 106a close to the staircase 105, the opening 54 of the lower fixing member 50 is oriented to open outward with respect to the staircase. On the other hand, when changing the position of the through hole to be attached, or when the inclination direction of the stairs is reversed, it is preferable to reverse the opening direction of the opening 24. In this case, as shown in FIG. 15, the direction of the lower fixing member 50 can be changed so that the opening 54 faces the other side.

  As shown in FIG. 13, the opening 54 between the side walls 52 a and 52 b is configured to be substantially equal to the outer diameter of the column main body 103 accommodated in the opening 54. The side wall 52b is provided with a relief portion 52c that is bent so that the opening side spreads outward.

  The wedge member 55 closes the opening 54 by being inserted into the wedge through holes 56a and 56b provided in the side walls 52a and 52b, respectively. The wedge member 55 is provided with a tip protrusion 55b for retaining at the tip portion of the wedge main body 55 configured to become narrower as it goes forward.

  The wedge through hole 56a provided in the side wall 52a is configured to have a size through which the tip protrusion 55b of the wedge member 55 can pass. On the other hand, the wedge through hole 56b provided in the other side wall 52b is configured to have such a size that the wedge main body 55 can be inserted but the tip protrusion 55b cannot be inserted. Therefore, the wedge member 55a is arranged so as to be supported by the side wall 52b when the opening 54 is not closed, and the tip end portion thereof is arranged in the escape portion 22c so as to reach the opening 54 of the column main body 103. It does not interfere during storage.

  The lower fixing member 50 is attached to the column main body 103 after the upper fixing member 10 is locked to the handrail flange 104b as in the first embodiment.

  According to the scaffolding plate according to each embodiment of the present invention, the lower fixing member 20 positioned on the lower end side of the handrail main body 2 is fixed to the column main body 103 at a position higher than the handrail flange 104b. The installation height can be sufficiently secured, and the height from the part protruding upward such as a step can be attached so as to satisfy the restriction of the handrail installation height.

  In addition, this invention is not limited to the said embodiment, It can implement in another various aspect. For example, in the above-described embodiment, a support column in which a flange is used as an attachment portion of the support column is taken as an example. However, as shown in FIG. 10, it can also be applied to a support column 113 that uses a so-called top 114 as an attachment portion. . In this case, it is preferable that the configuration of the upper fixing member 10 fitted into the hole 116 of the top 114 is appropriately designed according to the shape of the top.

  Further, the mechanism for reversing the direction of the lower fixing member is not limited to the configuration described in FIG. 13 of the second embodiment. Further, the stair rail of the first embodiment can be configured to be reversible by employing a mechanism such as FIG.

  Furthermore, although the wedge member 25 is used in the present embodiment as an example of a closing member for preventing the lower fixing member 20 and the column main body 103 from falling off, the configuration of the closing member is not limited to this. . For example, a member that can close the opening 24 of the column receiving portion 21 between the side walls 22a and 22b facing each other, for example, a protruding member that protrudes from the side walls 22a and 22b toward the opening 24 and can be moved back and forth is used. The configuration is not particularly questioned.

DESCRIPTION OF SYMBOLS 1,31 Staircase handrail for temporary scaffolds 2,32 Handrail main body 3,33 Attachment part 4,34 Attachment part 10,40 Upper fixing member 11 Hook member 12 Engagement hook tip 13 Hook member lower edge 20,50 Lower part Fixing member 21 Column support 22a, 22b, 52a, 52b Side wall 23, 53 Intermediate wall 24, 54 Opening 25, 55 Wedge member 25a, 55a Wedge body 25b, 55b Tip projection 26a, 26b, 56a, 56b Wedge through hole 57 Fixing part 100 Temporary scaffold 101 Strut 102 Scaffold plate 103,113 Strut body 104 Flange 104a Stair flange 104b Handrail flange 105 Stair 107 Horizontal member 114

Claims (9)

It is used together with a staircase spanned between the horizontal members of a temporary scaffolding comprising a column provided with mounting portions at predetermined intervals on the column main body, and a horizontal member fixed to the mounting portion of the column. A stairway handrail for temporary scaffolding provided with an upper fixing member and a lower part fixing member fixed to the pillars at both ends of the handrail main body at a position above the provided staircase attachment portion,
The upper fixing member located on the upper end side of the handrail main body is configured to be fixable with a handrail attaching portion which is an attaching portion located above the staircase attaching portion,
The stairs handrail for temporary scaffolding, wherein the lower fixing member located on the lower end side of the handrail main body is configured to be fixed to the column main body at a position higher than the handrail attaching portion.   The stair handrail for temporary scaffolding according to claim 1, wherein the attachment portion is configured to have a plurality of attachment positions around a support column.   The stair railing for temporary scaffolding according to claim 1 or 2, wherein the attachment portion is a flange made of a plate-like member provided with the through hole.   4. The stair railing for temporary scaffold according to claim 2, wherein the upper fixing member is formed in a hook shape provided with a claw that can be inserted into the through-hole from above. 5.   The lower fixing member is formed in a U-shape in cross section, and is fixed to the column receiving part configured to be fitted into the column from the opening and the side wall facing the opening of the column receiving unit. A temporary staircase handrail for temporary scaffolding according to any one of claims 2 to 4, further comprising: a closing member that blocks the column and prevents the column from falling off.   6. The stair railing for a temporary scaffold according to claim 5, wherein the closing member is formed of a wedge-shaped member, and the opening is closed by being inserted into a wedge insertion hole provided in the side wall.   The lower fixing member is rotatably fixed to the handrail main body via an attachment portion provided on the handrail main body, and is provided so as to be able to be reversed in a direction orthogonal to the length direction of the handrail main body. The stair railing for temporary scaffolding according to any one of claims 1 to 6, characterized in that.   The mounting portion has a pair of flanges extending in parallel with each other in the horizontal direction with a rotating shaft extending in the vertical direction, and the lower fixing member has a connecting portion connected to the flange by the rotating shaft. The stair railing for temporary scaffolding according to claim 6, characterized in that it is characterized.   The stair railing for temporary scaffolding according to any one of claims 1 to 8, wherein the handrail main body is formed in a bar shape.

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