JP4412612B2 - Temporary scaffolding connection structure - Google Patents

Description

  The present invention relates to a temporary scaffold connection structure for releasably connecting a scaffolding material such as a brace material, a horizontal material, or a vertical material for a temporary scaffold to a wedge receiver of a support column.

  Generally, when performing construction of buildings, 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 one-level scaffold is formed, and a plurality of levels of scaffolds are formed by sequentially adding support pillars upward and erection of a scaffold plate. In such a temporary scaffold, as a safety measure when adding the scaffold upward, the scaffolding material such as a brace, horizontal material or vertical material is used as a handrail before the scaffolding plate is installed. Configured to place.

  As described above, when the scaffold is disposed, a temporary scaffold connection structure for removably connecting the scaffold to the wedge receiver of the support is used. As the temporary scaffold connection structure, for example, as shown in FIG. 4, a U-shaped main body member 120, and the main body member 120 are slidably disposed in the vertical direction, and are inserted and removed from above the wedge receiver 115. A connection structure 100 for temporary scaffolding having a wedge part 130 formed in a possible manner is known (for example, see Patent Document 1). In the figure, reference numeral 116 denotes a hole portion of the wedge receiver 115, 121 and 122 denote two plate-like members constituting the main body member 120, 131 denotes a protrusion that can be inserted into the hole portion 116 of the wedge receiver 115, and 132 and 133 denote A retaining portion P formed wider than the main body member 120 represents a scaffold material.

  In this temporary scaffold connection structure 100, the U-shaped main body members 120 are engaged with the upper and lower ends of the wedge receiver 115 of the support column 111, so that even if a force is applied from below, it is difficult to come off. Since the temporary scaffolding connection structure 100 can be fixed by attaching and detaching the portion 130 to and from the wedge receiver 115 of the column 111, the attachment work can be easily performed.

By the way, in the conventional connection structure 100 for temporary scaffolds, since the wedge part 130 is fixed with respect to the wedge receiver 115, the unexpected situation where the wedge part 130 unintentionally removes from the wedge receiver 115 is produced. When this occurs, there is a problem in safety such as the fixation of the temporary scaffold connection structure 100 being released.
JP 2002-70304 A

  This invention is made | formed in view of the said point, and provides the connection structure for temporary scaffold which can implement the connection to the support | pillar of a scaffold more safely, reliably, and simply.

That is, the invention of claim 1 is a structure for removably connecting a scaffolding material such as a brace material for a temporary scaffolding or a horizontal material or a vertical material to a wedge receiver of a support, and includes two plate-like members. Between the main body member to which the scaffolding material is fixed, the fixed wedge portion formed in the main body member so as to be freely inserted into the upper hole portion of the wedge receiver of the support column, and the two plate-like members constituting the main body member A movable wedge that is provided so as to be able to advance and retreat in the lateral direction along the three guide portions formed in the guide, and is advanced so as to be engaged with the lower portion of the wedge receiver at the time of safety fixing and retracted from the lower portion of the wedge receiver at the time of unlocking possess a member, said at safety anchorage according to the temporary scaffolding connecting structure, characterized in that the wedge receiving is gripped from above and below by said movable wedge member and said stationary wedge.

  The invention according to claim 2 relates to the connection structure for a temporary scaffold according to claim 1, wherein at least a part of the guide part is a rivet fixed between the plate-like members.

  According to a third aspect of the present invention, there is provided a connecting structure for a temporary scaffold according to the first or second aspect, wherein a retaining pin portion that engages with a plate-like member constituting the main body member is formed at a front portion of the movable wedge member. Related to the body.

  The invention according to claim 4 relates to the connection structure for a temporary scaffold according to any one of claims 1 to 3, wherein a protrusion for hammer driving is formed at a rear portion of the movable wedge member.

According to the connection structure for a temporary scaffold according to the first aspect of the present invention, the structure is a structure for removably connecting a scaffolding material such as a brace material for a temporary scaffold or a horizontal material or a vertical material to a wedge receiver of a support column. A main body member composed of two plate-like members to which the scaffolding material is fixed; a fixed wedge portion formed on the main body member so as to be freely inserted into an upper hole portion of the wedge support of the support; and the main body member Are provided so as to be able to advance and retreat in the lateral direction along three guide portions formed between the two plate-like members, and are advanced so as to be engaged with a lower portion of the wedge receiver when the safety is fixed, and the wedge receiver when the fixing is released. communication of have a movable wedge member is retracted from the bottom, of the order at the time of the safety anchorage receiving the wedge by said movable wedge member and said stationary wedge is gripped from above and below, to the struts of the scaffold Moreover safer and reliably it can be performed easily.

  According to a second aspect of the present invention, since at least a part of the guide portion is a rivet fixed between the plate-like members in the first aspect, the two wedge-shaped members are integrally formed and at the same time, the movable wedge member Therefore, a simpler configuration can be achieved.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the retaining pin portion that engages with the plate-like member constituting the main body member is formed at the front portion of the movable wedge member. The safety can be further improved.

  According to a fourth aspect of the present invention, in the first to third aspects, since the protrusion for hammer driving is formed at the rear part of the movable wedge member, it is easier to secure and release the safety by the movable wedge member. It can be carried out.

The present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a perspective view of a connection structure for a temporary scaffold according to an embodiment of the present invention, FIG. 2 is a schematic side view showing a state before the connection structure for a temporary scaffold is attached, and FIG. It is a schematic side view showing the state where the connection structure was attached.

  The temporary scaffolding connection structure 10 according to one embodiment of the present invention shown in FIG. 1 to FIG. 3 is obtained by removing the scaffolding material P for the temporary scaffolding or the scaffolding material P such as the horizontal material or the vertical material to the wedge receiver 15 of the column 11. The main body member 20, the fixed wedge portion 30, and the movable wedge member 40 are provided for connection. In the figure, the symbol P1 represents a fixing part of the scaffold material P.

  The main body member 20 is composed of two plate-like members 21 and 22 to which the scaffold material P is fixed. The main body member 20 of the embodiment is configured so that the fixing portion P1 of the scaffolding material P is sandwiched between the plate-like members 21 and 22 and is fixed by the fixing pins 23 penetrating the plate-like members 21 and 22. The The main body member 20 is provided with a plurality of (two in this example) rivets 26 and 27 fixed between two plate-like members 21 and 22, and these rivets 26 and 27 are movable wedge members which will be described later. It is comprised as a part of 40 guide parts. In this embodiment, the rivet 26 is disposed at the lower portion of the main body member 20, and the rivet 27 is disposed at the rear of the main body member 20 above the rivet 26.

  The fixed wedge portion 30 is formed in the main body member 20 so as to be freely inserted into the upper hole portion 16 of the wedge receiver 15 of the support column 11. In the fixed wedge portion 30 of the embodiment, a part of the rear portion 32 is integrally formed with the main body member 20 by welding. Further, the rear portion 32 of the fixed wedge portion 30 is formed so as to protrude downward to substantially the same height as the rivet 27 provided on the main body member 20, and its lower end portion 33 is one of the guide portions of the movable wedge member 40 described later. Configured as part. Reference numeral 31 in the drawing is a protrusion that can be inserted into the upper hole portion 16 of the wedge receiver 15.

  The movable wedge member 40 is provided so as to be movable back and forth in the lateral direction along three guide portions (26, 27, 33) formed between the two plate-like members 21, 22 constituting the main body member 20. It is configured to advance to the lower part of the wedge receiver 15 when fixed and to be retracted from the lower part of the wedge receiver 15 when released. The movable wedge member 40 of the embodiment is linearly moved in the front-rear direction by being held between the rivet 26 serving as a guide portion and the lower end portion 33 of the rivet 27 and the rear portion 32 of the fixed wedge portion 30 so as to be movable back and forth in the lateral direction. Is configured to be possible. The movable wedge member 40 includes a rod-like member 41 having a front portion 42 configured in a wedge shape, and a retaining pin portion 43 that is engaged with the plate-like members 21 and 22 constituting the main body member 20 on the front portion 42. Is formed, and is prevented from falling off by engaging with the plate-like members 21 and 22 when retreating. Further, the movable wedge member 40 has a protrusion 46 for hammer driving at the rear.

  Next, a method of connecting the scaffold material P to the support column 11 using the temporary scaffold connection structure 10 will be described with reference to FIGS. The connection structure 10 for the temporary scaffold before connection is in a state in which the movable wedge member 40 is retracted and the retaining pin part 43 of the front part 42 is engaged with the plate-like members 21 and 22 of the main body member 20.

  First, as shown in FIG. 2, by inserting the protrusion 31 of the fixed wedge portion 30 into the upper hole portion 16 of the wedge receiver 15 from above, the connection of the temporary scaffold connection structure 10 to the column 11 is started. Is done.

  Next, as shown in FIG. 3, the movable wedge member 40 is advanced along the guide portions 26, 27, and 33, and the protrusion 46 formed on the rear portion of the movable wedge member 40 is directed from the rear side toward the front side. By driving with a hammer or the like, the front portion 42 of the movable wedge member 40 is engaged with the lower portion of the wedge receiver 15 and is fixed by the lower portion of the wedge receiver 15 and the three guide portions 26, 27, 33. Thereby, the wedge receiver 15 is gripped from above and below by the fixed wedge portion 30 and the movable wedge member 40 and is securely fixed, and the connection of the scaffolding material P to the column 11 by the temporary scaffold connection structure 10 is completed.

  Further, when removing the scaffold P from the column 11, as shown in FIG. 3, the protrusion 46 of the movable wedge member 40 is driven from the front side to the rear side using a hammer or the like, and the movable wedge member 40 is The front part is retracted from the lower part of the wedge receiver 15 to release the fixation (see FIG. 2), and then the projection 31 of the fixed wedge part 30 is removed from the upper hole part 16 of the receiving part 15 so as to connect the temporary scaffold. Removal of the body 10 from the column 11 is completed.

  In the temporary scaffold connection structure 10 connected as described above, the main body member 20 composed of two plate-like members 21 and 22 and the scaffold member P fixed thereto, and the upper hole portion 16 of the wedge receiver 15 of the column 11. A fixed wedge portion 30 formed on the main body member 20 so as to be freely inserted into the main body member 20 and three guide portions 26, 27, 33 formed between the plate-like members 21, 22 are provided so as to be able to advance and retract in the lateral direction. Since the movable wedge member 40 is moved forward from the lower portion of the wedge receiver 15 at the time of safety fixing and retracted from the lower portion of the wedge receiver 15 at the time of unlocking, the scaffold material P can be safely, reliably and simply attached to the column 11. It can be attached and removed easily.

  In addition, the connection structure for temporary scaffolds of this invention is not limited only to the above-mentioned Example, A part of structure can be changed suitably and implemented in the range which does not deviate from the meaning of invention.

It is a perspective view of the connection structure for temporary scaffolds which concerns on one Example of this invention. It is a schematic side view showing the state before attachment of the connection structure for temporary scaffolds. It is a schematic side view showing the state where the connection structure for temporary scaffolds was attached to the support | pillar. It is a schematic side view of the conventional connection structure for temporary scaffolds.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Connection structure for temporary scaffolds 11 Support | pillar 15 Wedge receiver 20 Main body member 21,22 Plate-shaped member 30 Fixed wedge part 40 Movable wedge member P Scaffold material

Claims (4)

A structure for releasably connecting a brace material such as a brace material for a temporary scaffold or a horizontal material or a vertical material to a wedge receiver of a support,
A body member composed of two plate-like members to which the scaffolding material is fixed;
A fixed wedge portion formed on the body member so as to be freely inserted into an upper hole portion of the wedge receiver of the support column;
It is provided so as to be able to advance and retract laterally along three guide portions formed between two plate-like members constituting the main body member, and is advanced and fixed so as to be engaged with the lower portion of the wedge receiver when secured. during release possess a movable wedge member is retracted from the bottom of receiving the wedge,
The connection structure for a temporary scaffold , wherein the wedge receiver is gripped from above and below by the fixed wedge portion and the movable wedge member when the safety is fixed .   The connection structure for a temporary scaffold according to claim 1, wherein at least one part of the guide part is a rivet fixed between plate-like members.   The connection structure for a temporary scaffold according to claim 1 or 2, wherein a retaining pin portion that engages with a plate-like member constituting the main body member is formed at a front portion of the movable wedge member.   The connection structure for a temporary scaffold according to any one of claims 1 to 3, wherein a protrusion for hammer driving is formed at a rear portion of the movable wedge member.

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