JP5118789B2 - Temporary material connector - Google Patents

Description

  The present invention relates to a temporary material connector, and more particularly, to a temporary material connector for fixing a temporary material such as a temporary support column extending in the vertical direction to a temporary horizontal member or a temporary side girder so that the temporary member can be disassembled. is there.

  Temporary scaffolds such as frame scaffolds, single-pipe scaffolds, and rolling towers for work at elevated locations that are temporarily installed at construction sites for construction and civil engineering work generally have a multi-layer structure, so workers etc. move the work floor of each layer or each floor Temporary staircases are arranged at appropriate locations on the temporary scaffolding as vertical communication paths for the purpose. This type of temporary staircase has a structure in which various metal members (aluminum alloy mold members) constituting side girders, step boards, handrails, and the like are assembled as described in, for example, Japanese Utility Model Publication No. 6-62092. In such a temporary staircase, each end of the side beam is locked to the upper and lower horizontal members, both ends of the tread are supported by the left and right side beams, and the handrail column is attached to the side beam by a column support It is done.

  In the conventional temporary staircase, the column support has a structure in which the column mounting bracket is fixed to the side girder side surface with a bolt or other fixture. Therefore, when mounting the handrail column, processing such as drilling a metal member Is required. For this reason, the assembly work and dismantling work of the handrail is a cumbersome work that requires a relatively large amount of time and man-hours, and the handrail post mounting position is changed after the handrail is once attached to the side girders. It is extremely difficult to make adjustments.

  Japanese Patent Application Laid-Open No. 10-252258 discloses an apparatus for attaching a handrail for temporary staircase, which is intended to improve the support structure of the handrail strut of the temporary staircase and simplify the work of attaching and dismantling the handrail strut to the side girders. Is disclosed.

This mounting device has an upper clamp member for gripping the upper surface side portion of the side beam of the temporary staircase and a lower clamp member for gripping the lower surface side portion of the side beam, and the upper clamp member is fixed to the lower end portion of the handrail support column. The lower clamp member is pivotally attached to the lower end portion of the handrail post below the upper clamp member. The lower clamp member pivots with respect to the upper clamp member, and cooperates with the upper clamp member to form a side beam receiving space having a square cross section. The upper and lower clamp members are fastened so as to approach each other in the vertical direction by fixing means such as bolts and nuts, and the side girders in the side girder accommodation space are strongly pressed by the upper and lower clamp members. As a result, the side beam, the handrail support column, and the clamp member are integrated, and the handrail support column is fixed to the side beam. When disassembling the handrail support, the fixing means may be relaxed to open the upper and lower clamp members to each other.
Japanese Utility Model Publication No. 6-62092 JP-A-10-252258

  According to such an attachment device, it is possible to omit drilling processing of the metal member, simplify the attachment work or disassembly work of the handrail support column to the side beam, and the handrail support column attached to the side beam. The position can be changed or adjusted after installation.

  However, the upper and lower clamp members form a uniform and rectangular cross-section side girder accommodation space, and are configured so that the upper and lower horizontal planes and the left and right vertical planes are brought into contact with the side girder outer surface under pressure. Only. That is, this mounting device may be able to fix the handrail column to the side beam as desired when used for a side beam of a predetermined cross section set in advance. As a result of the pivoting of the clamping member being prevented by the side girders, the upper and lower clamping members do not close as desired or after clamping of the clamping member by the fixing means A gap or play space or the like is generated between the outer surface, and as a result, the handrail post cannot be firmly fixed to the side beam.

  On the other hand, in actual construction work, different types of temporary scaffolds such as frame scaffolds, single-pipe scaffolds, and rolling towers for high-altitude work are used as appropriate. Etc. differ according to the form of the scaffold. In addition, although aluminum alloy mold materials are generally used as side girders for temporary stairs, the cross-sectional dimensions and shapes of the mold materials used by each manufacturer of temporary stairs are not necessarily constant. For this reason, in the conventional mounting device configured to uniformly form the side girder accommodation space having a constant and square cross section by the upper and lower clamp members, the side girder of various temporary stairs having different cross-sectional dimensions and shapes are used. Can't adapt.

  Similarly, when mounting a handrail post, etc., to a horizontal member with a different cross-sectional dimension / shape, such as a mounting device for attaching a handrail post, etc., installed in a horizontal temporary work passage to a horizontal member, etc. However, there is no temporary material connector that can be used in common, and development of such a member is desired.

  In other words, the non-applicability of the temporary material connector to the difference in the cross-sectional dimensions and shapes of the side girders or horizontal members is not limited to temporary steps, but temporary structures for connecting the temporary materials integrally to the side girders or horizontal members. It is also a problem that is commonly recognized with regard to general materials couplers.

  The present invention has been made in view of such problems, and the object of the present invention is to contact the outer surface of a side beam or a horizontal member having a different cross-sectional size and shape under pressure, An object of the present invention is to provide a temporary material connector that can be firmly fixed to a horizontal member and can be attached to a side beam or a horizontal member having a different cross-sectional size and shape, such as a handrail column.

In order to achieve the above object, the present invention provides a temporary scaffold or temporary staircase horizontal member or side girder (3) that is brought into contact with the outer surface of the side member (3) under pressure and integrated with the horizontal member or side member. In the temporary material connector (1,1 ') that supports (2,7) and integrally connects the temporary material to the horizontal member or the side beam,
Supporting the temporary material, and supporting members (11, 18) that contact the upper portion of the horizontal member or side girders and prevent the horizontal member or side girders from being displaced upward relative to the temporary material coupler,
A side contact surface (32) formed by an inner surface of a first side wall portion (12) extending downward integrally from the support member and in surface contact with the first side surface (3b) of the horizontal member or side beam. When,
A second side wall portion (13, 17) extending integrally downward from the support member along the second side surface (3c) of the horizontal member or side beam located on the opposite side of the first contact surface; A swinging member (14) that is pivotally connected and forms a lower inclined contact surface (34) that contacts the lower end corner (3f) of the second side surface in a point contact state;
The pivot member is pivotally connected to the tip of the swing member, and is fastened to the lower end of the first side wall, and the lower inclined contact surface is in point contact with the lower end corner of the horizontal member or side beam. There is provided a temporary material connecting tool characterized by having a fastener (15) that is brought into contact with a state.

  In general, a metal mold having a square, channel, or U-shaped cross section is used as a horizontal member or a side beam of a temporary scaffold or temporary staircase, and these members generally have a generally rectangular cross section. However, according to the said structure of this invention, the lower end corner | angular part of a horizontal member or a side beam contact | abuts to the lower inclination contact surface of a coupling tool. The tightening force of the tightening tool acts on the horizontal member or the side beam through the contact point between the lower inclined contact surface and the lower end corner. Since the horizontal member or the side beam is restricted by the support member in its upward movement and restricted in its one-side direction by the side abutment surface, the tightening force of the fastener is the point contact state contact point. To disperse appropriately upward and in one direction. That is, the horizontal member or the side beam is pressed against the support member and the side contact surface by the tightening force and fixed to the temporary connector.

  Preferably, the support member includes an upper contact surface that is in surface contact with the upper surface of the horizontal member or the side beam, and an upper inclined contact that is in contact with the upper end corner of the second side surface of the horizontal member or the side beam in a point contact state. And a contact surface. When the horizontal member or the side beam is pressed upward by the fastener, the upper surface of the horizontal member or the side beam is brought into surface contact with the upper contact surface of the support member in accordance with the cross-sectional size and shape, or the upper end corner portion thereof. Is brought into contact with the upper inclined contact surface of the support member in a point contact state.

  In a state where the upper surface of the horizontal member or the side beam is in surface contact with the upper contact surface of the support member, the horizontal member or the side beam contacts the temporary material coupler under pressure at one point with the two surfaces. The two surfaces prevent relative displacement in the upward and unilateral directions. That is, the horizontal member or side girder subjected to the action of the diagonally upward (upward and one-sided) force acting on the contact portion in the point contact form is relative to the temporary material coupler on two surfaces and at one point. Fixed.

  On the other hand, in the state where the upper end corner portion of the horizontal member or the side beam is in contact with the upper inclined contact surface in the point contact form, the horizontal member or the side beam is attached to the temporary material coupler under pressure at one surface and two points. Contact. One side prevents relative displacement in one direction and one point prevents upward relative displacement. That is, the horizontal member or the side beam subjected to the action of the diagonally upward (upward and one-sided) force acting on the contact portion of the point contact form is relative to the temporary material connector at one and two points. Fixed.

  As described above, the temporary connector of the present invention configured to relatively fix the horizontal member or the side girders and the temporary connector at one point on two surfaces or two points on one surface, the horizontal member or It has a completely different contact form from the contact form of the conventional connector (Patent Document 2) that only makes surface contact with the side beams.

  According to the temporary material connector of the present invention, the outer side of the side beam or the horizontal member having a different cross-sectional size and shape is abutted under pressure and firmly fixed to the side beam or the horizontal member. Temporary members such as handrail support columns can be attached to the shape side girders or horizontal members.

  According to a preferred embodiment of the present invention, the support member includes an upper abutting surface (31) capable of being in surface contact with the upper surface of the horizontal member or the side beam, and an upper end angle of the second side surface of the horizontal member or the side beam. And an upper inclined contact surface (33) capable of contacting the portion.

  Preferably, each pivot axis of the swing member and the fastener is oriented substantially parallel to the axial direction of the cross member or side spar.

  More preferably, the swing member is made of a plurality of plate members arranged at intervals in the axial direction of the horizontal member or the side beam, and the lower inclined contact surface is formed by upper edge surfaces of the plurality of plate members. .

  According to a further preferred embodiment of the present invention, the fastener is fastened to the bolt (22) pivotally attached to the distal end of the swing member and the lower end of the first side wall. A nut (23), the bolt extends outward through a lower opening-shaped recess (25, 26) formed at the lower end of the first side wall, and the nut extends outside the first side wall ( 24) Screw onto the bolt.

  In a preferred embodiment of the present invention, the support member has a column support (4, 5) that supports the handrail column (2), or a plate-shaped member (7) that forms a baseboard in a temporary staircase or a temporary passage. ) Has a baseboard support (8).

  If desired, the outer surface of the horizontal member or side girder of the permanent structure is brought into contact with the horizontal member or side beam under pressure and integrated with the horizontal member or side girder, and the auxiliary device, auxiliary device or accessory of the permanent structure is supported. The connecting device of the present invention may be used as a connecting device for integrally connecting the accessory device or the accessory device to the horizontal member or the side beam.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  1A to 1E are a front view, a right side view, a left side view, a plan view, and a bottom view showing a configuration of a temporary material connector according to an embodiment of the present invention. FIG. It is a front view which shows the use condition of a material coupling tool.

  The temporary material connector 1 is used to attach the handrail column 2 to the side girder 3 of the temporary staircase (shown in phantom lines in FIG. 2) in a temporary scaffold such as a construction work or civil engineering work. The temporary material connector 1 includes a top plate portion 11, a first side plate portion 12, a second side plate portion 13, a swing member 14, and a fastening tool 15. A support tube 4 into which the lower end portion of the handrail post 2 can be inserted integrally extends vertically upward from the horizontal upper surface of the top plate portion 11. A pair of upper and lower bolt / nut assemblies 5 penetrates the support tube 4 and the handrail column 2, and fixes the lower end of the handrail column 2 inserted into the support tube 4 to the support tube 4.

  The first side plate portion 12 hangs from the top plate portion 11. The second side plate portion 13 is connected to the top plate portion 11 via the upper end inclined portion 18. The top plate portion 11 and the upper end inclined portion 18 constitute a support member that supports the handrail column 2 and that contacts the upper portion of the side beam 3 to prevent the side beam 3 from being displaced upward relative to the connector 1. The upper end inclined portion 18 is inclined at a predetermined angle (preferably 30 to 60 degrees, 45 degrees in this example) with respect to the top plate portion 11, and the second side plate portion 13 is suspended from the upper end inclined portion 18. The reinforcing rib member 17 protrudes integrally from the outer surface of the second side plate portion 13 in a direction orthogonal to the second side plate portion 13. The upper end portion of the reinforcing rib member 17 is integrally connected to the reinforcing rib member 16 that reinforces the support tube 4. The reinforcing rib members 16 are disposed on both sides of the support tube 4 and are integrated with the support tube 4.

  The reinforcing rib member 17 slightly extends below the second side plate portion 13. The second side plate portion 13 and the reinforcing rib member 17 constitute a second side wall portion. One end of the swing member 14 is pivotally connected to the lower end portion of the reinforcing rib member 17 by a bolt / nut assembly 20. As shown in FIG. 1C and FIG. 1E, the swing member 14 is disposed in pairs on both sides of the reinforcing rib member 17. The proximal end of the fastener 15 is pivotally connected to the other end of the swing member 14 by a bolt / nut assembly 21. The axes of the bolt and nut assemblies 20, 21 are oriented in a direction substantially parallel to the axis of the side spar 3.

  The fastener 15 includes a screw portion 22 having an external screw and a nut 23 that is screwed onto the screw portion 22. The first side plate portion 12 has a support wall portion 24 with which a nut 23 can be engaged. As shown in FIG. 1 (E), the support wall portion 24 is formed of a wall body formed so as to integrally bulge outward from the first side plate portion 12. The screw portion 22 passes through the bottom opening-shaped recesses 25 and 26 formed at the lower ends of the first side plate portion 12 and the support wall portion 24. The nut 23 is engaged with the outer surface of the lower end portion of the support wall portion 24 by a tightening torque with respect to the screw portion 22. The support wall portion 24 extends parallel and vertically upward along with the first side plate portion 12, is integrally connected to the outer end portion of the top plate 11, and is supported by the top plate 11. The first side plate portion 12 and the support wall portion 24 constitute a first side wall portion. The support wall portion 24 locally bulges at the lower end of the recess 26 and forms a folded portion or projection 29 that slightly protrudes outward. The folded portion or the protrusion 29 prevents the nut 23 from falling off the outer wall surface, and stabilizes the position of the nut 23.

  FIG. 2 shows a process of fixing the connector 1 to the side beam 3.

  In FIG. 2A, the nut 23 is loosened to release the screw portion 22 from the support wall portion 24, and the screw portion 22 and the swing member 14 are pivoted downward to cause the side beam accommodation space 6 of the connector 1 to move. A state in which is opened downward is shown. The connector 1 straddles the side beam 3 so as to receive the side beam 3 in the space 6. The upper end corner 3e of the side beam 3 contacts the inner inclined surface 33 of the connector 1 in a point contact state, or the top surface 3a of the side beam 3 contacts the upper contact surface 31 of the connector 1.

  2B, when the screw portion 22 and the swing member 14 are pivoted upward to engage with the support wall portion 24 and the nut 23 is fastened, as shown in FIG. The connector 1 can be closed and the connector 1 can be fixed on the side beam 3. The lower end corner 3f of the side beam 3 contacts the inner inclined surface 34 of the connector 1 in a point contact state, and the side surface 3b of the side beam 3 contacts the side contact surface 32 of the connector 1. The inner inclined surface 34 is inclined at a predetermined angle (preferably 30 to 60 degrees, in this example, approximately 45 degrees) with respect to the plane of the top plate portion 11.

  Thus, the horizontal lower surface of the top plate portion 11 constitutes an upper contact surface 31 that can come into surface contact with the top surface 3 a of the side beam 3, and the vertical side wall surface of the first side plate portion 12 is the side surface 3 b of the side beam 3. A side contact surface 32 that can be brought into surface contact is formed. The inner inclined surface 33 of the upper end inclined portion 18 constitutes an upper inclined contact surface that can contact the upper end corner portion 3e (the corner portion between the top surface 3a and the side surface 3c) of the side beam 3 on the side surface 3c side. The inner inclined surface 34 of the moving member 14 constitutes a lower inclined contact surface that can contact the lower end corner portion 3f of the side surface 3c of the side beam 3 (the corner portion between the bottom surface 3d and the side surface 3c). The inner side surface 35 of the second side plate portion 13 does not contact the side beam 3 and is separated from the side surface 3 c of the side beam 3.

  FIG. 3 is a front view of the connector 1 exemplifying a state in which the connector 1 is mounted on the side beams 3 having different cross-sectional dimensions and shapes.

  FIG. 3A shows a side beam 3 made of a rectangular metal tube 101 having a relatively large width dimension D. The width dimension D of the rectangular metal tube 101 is smaller than the maximum width W1 of the space 6 (the distance between the side contact surface 32 and the inner surface 35) and larger than the width W2 of the upper contact surface 31. The height L of the rectangular metal tube 101 is smaller than the maximum height H1 of the space 6 and larger than the minimum height direction interval H2 between the inner inclined surfaces 33 and 34. The corner portions 101 e and 101 f of the rectangular metal tube 101 are in contact with the inner inclined surfaces 33 and 34 in a point contact state, and the side surface 101 b of the rectangular metal tube 101 is in surface contact with the side contact surface 32.

  FIG. 3B shows a side beam 3 made of a channel-shaped metal material 102 having a relatively small width dimension D. The width dimension D of the metal material 102 is set to be substantially the same as the width W2 of the top surface 3a. The height L of the metal material 102 is smaller than the maximum height H1 of the space 6 and larger than the minimum height direction interval H2 between the inner inclined surfaces 33 and 34. The lower end corner 102f of the metal material 102 contacts the inner inclined surface 34 in a point contact state. The side surface 102 b of the metal material 102 is in surface contact with the side contact surface 32. The top surface 102 a of the metal material 102 is in surface contact with the upper contact surface 31.

  FIG. 3C shows a side beam 3 made of a rectangular metal tube 103 having a relatively small width dimension D. The width dimension D of the metal tube 103 is the same as or smaller than the width W2 of the top surface 3a. The height L of the metal material 102 is smaller than the maximum height H1 of the space 6 and larger than the minimum height direction interval H2 between the inner inclined surfaces 33 and 34. 103f of the metal tube 103 contacts the inner inclined surface 34 in a point contact state. The side surface 103 b of the metal tube 103 is in surface contact with the side contact surface 32. The top surface 103 a of the metal tube 103 is in surface contact with the upper contact surface 31.

  FIG. 3D shows a side beam 3 made of a channel-shaped metal material 104 having a relatively large width dimension D. The width dimension D of the metal material 104 is smaller than the maximum width W1 of the space 6 and larger than the width W2 of the top surface 3a. The height L of the metal material 104 is smaller than the maximum height H1 of the space 6 and larger than the minimum height direction interval H2 between the inner inclined surfaces 33 and 34. The corners 104e and 104f of the metal material 104 are in contact with the inner inclined surfaces 33 and 34 in a point contact state, and the side surface 104b of the metal material 104 is in surface contact with the side contact surface 32. The side surface 104b of the metal material 104 is an imaginary plane formed by a plurality of local enlarged portions 104g that are in contact with the point contact state. In the present specification, such a state in which contact is made at a plurality of points or multiple points and can be considered as surface contact as a whole is also included in “surface contact”.

  4A to 4E are a front view, a right side view, a left side view, a plan view, and a bottom view showing a configuration of a temporary connector 1 ′ according to a modification of the connector 1. In FIG. 4, substantially the same constituent elements or constituent members as those of the temporary connector 1 described above are denoted by the same reference numerals.

  The temporary connector 1 ′ is for attaching the stair baseboard 7 indicated by an imaginary line to the temporary staircase, and includes a baseboard support 8 in place of the support tube 4. The baseboard support 8 is composed of a column 81 erected on the top plate part 11 and a frame body 82 made of a bent product of a metal strip, and the upper end portion and the lower end portion of the frame body 82 are composed of columns 81. Fixed to. A hollow portion 83 through which the baseboard 7 can be inserted is formed between the support column 81 and the frame body 82. The skirting board 7 is made of a scaffolding plate for temporary scaffolding, is inserted through the hollow portion 83, and is fixed to the column 81 by a bolt / nut assembly 84 for fixing the skirting board.

  The connector 1 ′ is exactly the same as the connector 1 described above in other structures, in particular, the top plate portion 11, the first side plate portion 12, the second side plate portion 13, the swinging member 14, the tightening tool 15, and the like. Since it is a structure, in order to avoid duplication of explanation, further detailed explanation is omitted.

  FIG. 5 is a front view, a bottom view, and a side view showing the handrail 50 directly attached to the stairs to which the connector 1 shown in FIGS. 1 to 3 is attached.

  The handrail 50 includes a mountain-shaped handrail member 51 in which a handrail support 52 is integrated, and a horizontal handrail member 53 connected to the handrail member 51. The handrail post portion 52 is inserted into the support tube 4 as the handrail post 2 shown in FIGS. 1 to 3 and is fixed to the support tube 4 by the bolt / nut assembly 5.

  6 and 7 are front views illustrating a frame scaffold 60 in which the temporary staircase 40 is installed.

  As shown in FIG. 6, the temporary staircase 40 includes a side girder 41 that is slanted between the horizontal members 61 on the upper and lower floors, a number of treads 42 supported on the left and right side girders 41, and the connector 1. 1 'and the stairs direct handrail 50 and the baseboard 70 which are attached to the side beam 41 by 1'.

  The temporary staircase 40 may be slanted between the frame scaffold 60 and the surrounding ground surface as shown in FIG. 7, and the handrail 50 directly attached to the staircase is formed by a handrail bar 62 as shown in FIG. You may connect with the building frame 63 etc. of the frame scaffold 60. FIG.

  FIG. 8 is a front view showing the rolling tower 90 in which the temporary staircase 40 is installed.

  Similar to the frame scaffold 60, the stairs direct handrail 50 and the baseboard 70 can be attached to the side girders 41 of the temporary staircase 40 by the couplers 1, 1 '.

  FIG. 9 is a schematic cross-sectional view conceptually showing the principle of the temporary material connector 1, 1 'according to the present invention.

  When the connecting tools 1 and 1 ′ are attached to the side beam 3 having a large width and a small height, as shown in FIG. 9A, the surface contact of the side surface 3 b of the side beam 3 with the side contact surface 32. And the contact (including line contact, single and local surface contact) of the corner portions 3e and 3f in contact with the inclined surfaces 33 and 34 in the point contact state. When the couplers 1 and 1 'are attached to the side beam 3 having a relatively small width and a large height, as shown in FIG. 9B, the side surface 3b and the top surface 3a with respect to the contact surfaces 32 and 31 are provided. The connector 1 is supported by the surface contact and the contact of the corner portion 3f with the inclined surface 34 in the point contact state. The tightening force F of the fastener 15 acting on the corner 3f acts in the diagonal direction of the side beam 3. The reaction force Rv in the vertical direction acts on the contact portion of the corner 3e or the top surface 3a with respect to the inclined surface 33 or the contact surface 31. A horizontal reaction force Rh acts on the contact portion between the side contact surface 32 and the side surface 3 b of the side beam 3. The couplers 1, 1 ′ are mechanically stabilized by the balance between the tightening force F of the tightening tool 15 and the reaction forces Rv, Rh of the respective contact portions.

  The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the above-described embodiments, and various modifications or changes can be made within the scope of the present invention described in the claims. Is possible.

  For example, the above embodiment relates to a temporary material connecting tool for attaching a temporary handrail or a temporary baseboard to a side girder of a temporary staircase, but the present invention relates to a temporary handrail, temporary structure for a horizontal horizontal member of a temporary scaffold. The present invention can be applied to a connecting tool for attaching a temporary member such as a baseboard or a temporary instrument.

  In addition, the structure of the connector of the present invention can be applied not only to temporary materials but also to a connector that permanently or permanently attaches or supports equipment for permanent structures over a relatively long period of time. .

  Furthermore, the upper contact surface 31 and the side contact surface 32 of the connector 1 do not necessarily need to be smooth surfaces, and may have irregularities or serrations.

  Moreover, in the said Example, the temporary connection tool for handrail attachment, and the temporary connection tool for baseboard attachment are demonstrated as having the same structure regarding the structure of the part engaged with a horizontal member or a side beam. However, these temporary couplers do not necessarily have the same engagement structure, and may be any part structure that has been appropriately modified or optimized according to its use, function, etc. .

  The temporary material connector of the present invention is disposed in a temporary scaffold for construction work and civil engineering work, etc., and temporary members such as temporary handrails, temporary baseboards, or temporary tools are used for temporary stairs or temporary scaffolding side girders, horizontal members, etc. It can be preferably used as a temporary material connection or support means that is detachably attached to the housing. Since the structure of the temporary material connector of the present invention is suitable for side girders or horizontal members having different cross-sectional dimensions and shapes, it is practically extremely advantageous for improving the versatility or adaptability of the connector.

It is the front view which shows the structure of the temporary material coupling tool for attaching the handrail support | pillar of a temporary handrail to the side girder of a temporary staircase, a right view, a left view, a top view, and a bottom view. It is a front view which shows the use condition of a temporary material coupling tool. It is a front view which illustrates the state which attached the temporary material coupling tool to the side beam of a different cross-sectional dimension and shape. It is the front view which shows the structure of the temporary material coupling tool for attaching a temporary baseboard to the side beam of a temporary staircase, a right view, a left view, a top view, and a bottom view. It is the front view, bottom view, and side view which show the structure of the stair direct attachment handrail which has the temporary material coupling tool shown in FIGS. It is a front view of the frame scaffold which installed the temporary staircase, and the state which attached the temporary handrail and the temporary baseboard to the side girder of the temporary staircase is shown. It is a front view of the framework scaffold which installed the temporary staircase, and the state which attached the temporary handrail to the side girder of the temporary staircase spanned diagonally between the framework scaffold and the surrounding ground surface is shown. It is a front view of the rolling tower which installed the temporary staircase, and the state which attached the temporary handrail and the temporary baseboard to the side girder of the temporary staircase is shown. It is a schematic sectional drawing which shows notionally the principle of a temporary material coupling tool.

Explanation of symbols

1, 1 'Temporary material connector 2 Handrail support (temporary material)
3 Side girder 4 Support tube 7 Skirting board for stairs (temporary material)
8 Baseboard support 11 Top plate portion 12 First side plate portion 13 Second side plate portion 14 Oscillating member 15 Fasteners 16 and 17 Reinforcement rib member 18 Upper end inclined portion 20 and 21 Bolt / nut assembly 24 Support wall portion 31 Upper contact Contact surface 32 Side contact surfaces 33, 34 Inner inclined surface 3a Top surface 3b Side surface 3c Side surface 3d Bottom surface 3e Upper end corner 3f Lower end corner

Claims (9)

The outer surface of the horizontal scaffolding or side girder of the temporary scaffold or temporary staircase is brought into contact with the horizontal member or side girder under pressure and is integrated with the horizontal member or side girder. In the temporary material connector that is integrally connected to
A support member that supports the temporary member and prevents an upward displacement of the horizontal member or the side beam with respect to the temporary member connector by contacting the upper part of the horizontal member or the side beam;
A side abutting surface formed by an inner side surface of a first side wall portion integrally extending downward from the support member and in surface contact with the first side surface of the horizontal member or side beam;
The pivot member is pivotably connected to a second side wall portion integrally extending downward from the support member along the second side surface of the horizontal member or the side beam located on the side opposite to the first contact surface. A rocking member that forms a lower inclined contact surface that contacts the lower end corner of the second side surface in a point contact state;
The pivot member is pivotally connected to the tip of the swing member, and is fastened to the lower end of the first side wall, and the lower inclined contact surface is in point contact with the lower end corner of the horizontal member or side beam. A temporary material connecting tool, comprising: a fastener that is brought into contact with the state.   The temporary support member according to claim 1, wherein the support member has an upper abutting surface capable of being brought into surface contact with an upper surface of the horizontal member or the side beam.   The temporary member connection according to claim 1, wherein the support member has an upper inclined contact surface that contacts a point contact state at an upper end corner portion of the second side surface of the horizontal member or the side beam. Ingredients.   4. Each pivot axis of the swing member and the fastener is oriented substantially parallel to the axial direction of the horizontal member or side beam. The temporary material connector as described.   The rocking member is composed of a plurality of plate members arranged at intervals in the axial direction of the horizontal member or the side beam, and the lower inclined contact surface is formed by upper edge surfaces of the plurality of plate members. The temporary material coupler according to claim 4, wherein   The fastener includes a bolt having a proximal end pivotally attached to a distal end portion of the swing member, and a nut fastened to a lower end portion of the first side wall portion. 6. The lower opening-type concave portion formed at the lower end of one side wall portion extends outwardly, and the nut is screwed onto the bolt from the outside of the first side wall portion. The temporary material connector according to any one of the above.   The temporary support member according to any one of claims 1 to 6, wherein the support member includes a column support that supports the handrail column.   The temporary support member according to any one of claims 1 to 6, wherein the support member includes a baseboard support that supports a plate-like member that forms a baseboard in a temporary staircase or a temporary passage. . Attached under pressure to the outer surface of the horizontal member or side girder of the permanent structure and integrated with the horizontal member or side girder, and supports the incidental device, auxiliary device or auxiliary device of the permanent structure, The temporary material coupling tool according to any one of claims 1 to 8 , wherein the device or the accessory is integrally coupled to the horizontal member or the side beam.

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