JP2008075305A - Brace for temporary scaffolding - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a brace for temporary scaffolding, which can be positively and safely connected to scaffolding supports, exerts high workability, and facilitates setting work. <P>SOLUTION: The brace for the temporary scaffolding consists of a diagonal which is diagonally arranged between the scaffolding supports, and an upper joint member and a lower joint member which are detachably mounted on wedge receivers attached to both ends of the diagonal and provided for the supports. Each joint member has a wedge portion which is insertably/withdrawably fitted into a hole portion formed in the wedge receiver, main body consisting of two plate members, and a movable wedge member laterally progressing/retreating along a guide portion. The diagonal is fixed to a lower portion of the main body of the upper joint member, and to an upper portion of the main body of the lower joint member. The movable wedge member of the upper joint member has a downward facing projection for driving a hammer, at a rear portion thereof, and the movable wedge member of the lower joint member has an upward facing projection for driving the hammer, at a rear portion thereof. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to bracing for temporary scaffolding.

  Generally, when performing construction work, etc., temporary scaffolds are installed on the outer periphery, and a plurality of support columns are arranged at predetermined intervals, and scaffolding plates are installed between the support columns. A multi-level scaffold is formed by forming a scaffold with a plurality of layers in the same manner, and by sequentially adding support pillars upward and erection of a scaffold plate. In such a temporary scaffold, as a safety measure when the scaffold is added upward, a scaffolding material such as an oblique material, a horizontal material or a vertical material is used as a handrail before the scaffolding plate is installed. Configured to be arranged.

  As described above, in the case of arranging a scaffolding material, a bracing or a leading bracing handrail using a coupling member for detachably coupling the scaffolding material to a holder of a column is known (for example, Patent Documents). 1). This leading brace handrail is a brace that is installed diagonally between the holders at the diagonal position of the support column. The lower holder is screwed and fixed by a pin of a locking metal fitting. Furthermore, in order to cope with the fixing position of the holder with respect to the support and the dimensional error of the scaffolding material itself such as the bracing material, horizontal material, vertical material, etc. The dimensional error relating to the support of the column is configured to be absorbed.

However, since such a handrail crossing handrail is loaded from the top and bottom, there is a risk that the locking hook may come off from the upper holder, the screwed locking metal fitting may be loosened, etc. there were.
JP 2002-70304 A

  The present invention has been made in view of the above points, and even if there is a slight dimensional error in the position of the wedge support provided on the support column or the skew material, the connection to the scaffold support column is more reliable. Further, the present invention provides a brace for temporary scaffolding that can be performed safely and has high workability and can be carried out extremely easily.

  That is, the invention of claim 1 is detachable with respect to the skewed material disposed between the scaffolding struts and the wedge receiver provided at both ends of the skewed material and disposed on the struts. In the brace for temporary scaffolding composed of an upper connecting member and a lower connecting member that are engaged with the upper connecting member, the upper connecting member and the lower connecting member are provided in a hole portion of a wedge receiver provided at each end of the skew material. Provided so as to be able to advance and retreat in the lateral direction along a wedge part that is detachably engaged from above, a main body member composed of two plate-like members, and a guide part formed between the two plate-like members of the main body member. A movable wedge member that is advanced to the lower part of the wedge receiver when the safety is fixed and is retracted from the lower part of the wedge receiver when the fixation is released, and the skew member is an upper connecting member of the main body member. Fastened to the lower part The lower connecting member is fixed to the upper portion of the main body member, and the movable wedge member is formed with an upward protrusion for hammering in the rear portion of the upper connecting member, The connecting member is related to a brace for temporary scaffolding, characterized in that a downward projecting portion for hammer driving is formed at a rear portion thereof.

  The invention according to claim 2 relates to the brace for temporary scaffolding according to claim 1, wherein the movable wedge member is provided with a drop-off preventing portion comprising a protrusion engaged with the pin portion of the main body member.

  According to the brace for temporary scaffolding according to the first aspect of the invention, the skewed material disposed at an inclination between the scaffolding struts, and the wedges provided at both ends of the skewed material and disposed on the struts In the brace for temporary scaffolding composed of an upper connecting member and a lower connecting member that are removably engaged with the receiver, the upper connecting member and the lower connecting member are provided at each end of the skew material. Horizontally along a wedge portion that is removably engaged with the hole portion of the wedge receiver from above, a main body member composed of two plate members, and a guide portion formed between the two plate members of the main body member And a movable wedge member that is advanced to the lower portion of the wedge receiver when the safety is fixed and retracted from the lower portion of the wedge receiver when the fixation is released. The body member Fixed to the side portion, fixed to the upper portion of the main body member of the lower connecting member, and the movable wedge member has an upward projection for hammer driving at the rear portion of the upper connecting member. Since the lower connecting member is formed with a downward projecting portion for hammer driving at its rear part, it can be connected to the scaffolding pillar more safely and reliably, and it is extremely easy to carry out. It comes out. In addition, workability is high because a sufficient work space for hammer driving can be secured.

  According to the second aspect of the present invention, in the first aspect of the present invention, the movable wedge member is provided with a drop-off preventing portion including a protrusion that engages with the pin portion of the main body member. It can be done reliably and can be carried out very easily.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a front view showing an embodiment of a brace for a temporary scaffold according to the present invention, FIG. 2 is a schematic side view showing a state before attachment to a column, which is a main part of an upper connecting member of the embodiment of FIG. 3 is a schematic side view showing a state in which the upper connecting member of FIG. 2 is attached to the support column, and FIG. 4 is a main part of the lower connecting member of the embodiment of FIG. FIG. 5 is a schematic side view, and FIG. 5 is a schematic side view showing a state in which the lower connection member of FIG. 4 is attached to the support column.

  As shown in FIGS. 1 to 5 and defined as the invention of claim 1, the brace 10 for temporary scaffolding of the present invention includes an oblique member 11 disposed in an inclined manner between the scaffolding pillars P1 and P2, An upper connecting member 20 and a lower connecting member 60 which are provided at both end portions 11a and 11b of the skew member 11 and are removably engaged with wedge receivers Q1 and Q2 disposed on the support columns P1 and P2. In the brace 10 for temporary scaffolding, the upper connecting member 20 and the lower connecting member 60 can be freely inserted and removed from above into the holes of the wedge receivers Q1 and Q2 provided at the ends 11a and 11b of the skew material. The wedge portions 30 and 70 to be engaged, the main body members 40 and 80 made of two plate-like members, and the guide portion formed between the two plate-like members of the main body member can be moved back and forth in the lateral direction. It is provided and when safety is fixed It has a movable wedge member 50, 90 which is advanced to the lower part of the wedge receiver and retracted from the lower part of the wedge receiver when unlocked, and the skew member 11 is the main body member 40 of the upper connecting member 20. Fixed to the lower portion 43 of the lower connecting member 60 and fixed to the upper portion 84 of the main body member 80 of the lower connecting member 60, and the movable wedge members 50 and 90 are thereafter connected to the upper connecting member 20. An upward projection 56 for hammer driving is formed on the portion 55, and a downward projection 97 for hammer driving is formed on the rear portion 95 of the lower connecting member 60.

  In the embodiment of FIG. 1, the skew member 11 is disposed to be inclined between the scaffold columns P 1 and P 2, and the upper end portion 11 a of the skew member 11 is disposed on the scaffold column P 1 by the upper connecting member 20. The wedge receiver Q1 and the lower end portion 11b are removably engaged with the wedge receiver Q2 provided on the scaffolding column P2 by the lower connecting member 60. As can be understood from FIGS. 2 and 3, the upper connecting member 20 includes a wedge portion 30, a main body member 40, and a movable wedge member 50. Further, as shown in FIGS. 4 and 5, the lower connecting member 60 is formed by a wedge portion 70, a main body member 80, and a movable wedge member 90.

  First, as will be understood from FIGS. 2 to 4, the wedge portions 30 and 70 of the connecting members 20 and 60 are provided at the end portions 11 a and 11 b of the skew member 11, and the wedges of the scaffolding columns P <b> 1 and P <b> 2. It is attached to the holes 5 and 6 of the receptacles Q1 and Q2 so as to be freely inserted and removed from above. In the embodiment, the lower portions 33 and 73 of the wedge portions 30 and 70 are fixed to the main body members 40 and 80 by welding and integrally formed.

  The main body members 40 and 80 are composed of two plate-like members 41 and 42 (81 and 82). Also, pin portions 46 and 86, which are rivets fixed between the two plate-like members 41 and 42 (81 and 82) of the main body members 40 and 80, and guide portions provided at the lower ends of the main body members 40 and 80. Guide parts 48 and 88 are provided above the guide parts 47 and 87 so that the rivets 46 and 86 and the lower part thereof have substantially the same height, and the pin parts 46 and 88 and the guide part 47. , 48, 87, 88 are configured as guide portions of movable wedge members 50, 90 described later.

  The movable wedge members 50 and 90 are arranged along guide portions 46, 47 and 48 (86, 87, 88) formed between the two plate-like members 41, 42 (81, 82) of the main body members 40, 80. It is provided so as to be able to advance and retreat in the lateral direction, and is advanced to the lower part of the wedge receivers Q1 and Q2 when the safety is fixed, and is retracted from the lower part of the wedge receivers Q1 and Q2 when the fixation is released. The movable wedge members 50 and 90 of the embodiment are sandwiched so as to be able to advance and retreat in the front-rear direction by the rivets 46 and 86 and the guide portions 47, 48, 87, and 88 that are guide portions, thereby allowing the linear movement in the lateral direction. It is configured to be possible. As defined in the second aspect of the invention, the movable wedge members 50 and 90 are provided with drop-off preventing portions 53 and 93 including protrusions that engage with the pin portions 46 and 86 of the main body members 40 and 80, respectively. The drop-off prevention parts 53 and 93 are configured to be locked to the pin parts 46 and 86 which are rivets of the main body members 40 and 80 so as not to drop off when the straight movement is performed rearward. The movable wedge members 50 and 90 include rod-like members 51 and 91 having front portions 52 and 92 configured in a wedge shape.

  Next, in the upper connecting member 20, as shown in FIGS. 2 and 3, the upper end portion 11 a of the skew member 11 is fixed to the lower portion 43 of the main body member 40 and the movable wedge member 50. An upward projecting portion 56 for hammer driving is formed on the rear portion 55. With such a configuration, a work space for hammering the movable wedge member 50 can be sufficiently secured, and workability is improved. In the embodiment, as shown in FIGS. 2 and 3, the upper end portion 11 a of the skew material is fixed to the lower portion 43 of the main body member 40 by welding.

  On the other hand, in the lower connecting member 60, as can be understood from FIGS. 4 and 5, the lower end portion 11b of the skew member 11 is the main body member so that the connecting member can be easily attached and detached as described above. A downward projecting portion 97 for hammer driving is formed on the rear portion 95 of the movable wedge member 90, which is fixed to the upper portion 84 of the 80. 4 and 5, the lower end portion 11b of the skew member 11 is fixed to the rear portion 72 of the wedge portion 70 by welding, so that it is integrally formed with the upper portion 84 of the main body member.

  Next, a method of connecting the bracing 10 for temporary scaffolding to the scaffolding pillars P1 and P2 will be described with reference to FIGS. Before the connection, as shown in FIGS. 2 and 4, the upper connection member 20 and the lower connection member 60 are configured such that the movable wedge members 50 and 90 are retracted and the drop-off preventing portions 53 and 93 are the positions of the main body members 40 and 80. The rivets 46 and 86 are locked.

  First, as understood from FIG. 2, in the upper connecting member 20, by inserting the protrusion 31 of the wedge portion 30 into the hole portion 5 of the upper wedge receiver Q <b> 1 of the scaffolding column P <b> 1 from above, the temporary bracing 10 for the scaffolding is provided. Is connected to the scaffolding column P1.

  Next, as shown in FIG. 3, the movable wedge member 50 is advanced along the guide portions 46, 47 and 48, and the upward protrusion 56 formed on the rear portion 55 of the movable wedge member 50 is moved from the rear side to the front side. The front portion 52 of the movable wedge member 50 is engaged with the lower portion of the upper wedge receiver Q1, and is engaged by the lower portion of the upper wedge receiver Q1 and the three guide portions 46, 47, 48. Combined. The upper wedge receiver Q1 is gripped from above and below by the wedge portion 30 and the movable wedge member 50, and is securely fixed, and the upper connecting member 20 completes the connection of the scaffolding brace 10 for scaffolding to the scaffold column P1.

  Next, in the lower connecting member 60, as can be understood from FIG. 4, the protrusion 71 of the wedge portion 70 is inserted into the hole 6 of the lower wedge receiver Q2 of the scaffolding column P2 from above. Subsequently, as shown in FIG. 5, the movable wedge member 90 is advanced along the guide portions 86, 87, 88, and the downward projecting portion 97 formed on the rear portion 95 of the movable wedge member 90 is moved from the rear side to the front side. It is driven in with a hammer or the like. As in the case of the upper connecting member 20, the front portion 92 is engaged with the lower portion of the lower wedge receiver Q <b> 2, and Q <b> 2 is gripped from the upper and lower sides and is securely fixed, and the scaffold strut P <b> 2 of the temporary bracing 10 for scaffolding by the upper connecting member 60. Linking to is completed. In addition, the connection of the brace 10 for temporary scaffolding to the scaffolding struts P1 and P2 eliminates rattling and play due to the dimensional error of the skew material and the shift of the position of the wedge support provided on the scaffolding struts. It is done reliably so that the material is in tension.

  Further, when the upper connecting member 20 and the lower connecting member 60 of the temporary scaffold brace 10 are removed from the scaffolding columns P1 and P2, as shown in FIGS. 3 and 5, the hammer driving protrusions of the movable wedge members 50 and 90 are provided. The parts 56 and 97 are driven from the front side to the rear side using a hammer or the like, and the front part of the movable wedge members 50 and 90 is retracted from the lower part of the upper wedge receivers Q1 and Q2 of the scaffolding pillars P1 and P2 to release the fixing. (See FIGS. 2 and 4), and then the protrusions 31 and 71 of the wedge portions 30 and 70 are removed from the upper hole portions 5 and 6 of the wedge receivers Q1 and Q2, thereby providing a scaffold for the brace 10 for temporary scaffolding. Removal from the columns P1 and P2 is completed. In such connection and removal of each connecting member to the scaffolding column, a sufficient space for hammering operation is secured, and the operation can be performed very easily.

  Note that the brace for temporary scaffolding according to the present invention is not limited to the above-described embodiment, and is composed of two skew members inclined between the scaffolding columns, or a horizontal handrail on the skew members. A configuration may be employed in which materials are arranged, and a part of the configuration can be changed as appropriate without departing from the spirit of the invention.

It is a front view which shows the Example of the bracing for temporary scaffolds of this invention. It is the principal part of the upper side connection member of the Example of FIG. 1, and is the schematic side view showing the state before the attachment to a support | pillar. FIG. 3 is a schematic side view showing a state in which the upper connecting member of FIG. 2 is attached to a column. It is the principal part of the lower side connection member of the Example of FIG. 1, and is the schematic side view showing the state before the attachment to a support | pillar. FIG. 5 is a schematic side view illustrating a state in which the lower connection member of FIG. 4 is attached to a support column.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Bracing for temporary scaffolding 11 Skew material 11a, 11b End part 20 Upper connection member 30,70 Wedge part 40,80 Main body member 50,90 Movable wedge member 53,93 Fall-off prevention part 54,94 Hammer driving protrusion 60 Below Side connecting member P1, P2 Scaffolding column Q1, Q2 Wedge receiver

Claims (2)

An oblique member disposed between the scaffolding struts, an upper connecting member provided at both ends of the oblique member and removably engaged with a wedge receiver disposed on the strut; and In the brace for temporary scaffolding consisting of the lower connecting member,
The upper connecting member and the lower connecting member are
A wedge portion that is removably engaged with a hole of a wedge receiver provided at each end of the skew material from above, a main body member composed of two plate-like members, and two plate-like members of the main body member. A movable wedge member which is provided so as to be able to advance and retract laterally along a guide portion formed therebetween, and which is advanced to the lower portion of the wedge receiver at the time of safety fixation and retracted from the lower portion of the wedge receiver at the time of unlocking;
The skew member is fixed to the lower portion of the main body member in the upper connecting member, fixed to the upper portion of the main body member in the lower connecting member, and
The movable wedge member has an upward projection for hammer driving at the rear portion of the upper connecting member, and a downward projection for hammer driving at the rear portion of the lower coupling member. Bracing for temporary scaffolding, characterized by   The brace for temporary scaffolding according to claim 1, wherein the movable wedge member is provided with a drop-off preventing portion including a protrusion engaged with the pin portion of the main body member.

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