JP2008002117A - Connecting structure for temporary scaffold - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connecting structure for a temporary scaffold, more safely, surely and simply performing connection of a scaffold material to a column. <P>SOLUTION: This connecting structure for a temporary scaffold includes: a body member 20 having a holding pin 25 between two plate-like members 21, 22, to which the scaffold material P is fixed; a fixed wedge part 30 formed on the body member 20 to be freely inserted in an upper hole part 16 of a wedge receiver 15; and a movable wedge member 40 having a groove part 45 locked on the holding pin 25 of the body member 20 to move, which is moved forward to the lower part of the wedge receiver 15 in stable fixing, and moved backward from the lower part of the wedge receiver 15 in unfixing. <P>COPYRIGHT: (C)2008,JPO&INPIT

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, P 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 falls out of 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 detachably 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 column, and includes two plate-like members. A main body member having a holding pin in between and fixed to the scaffold material, a fixed wedge portion formed in the main body member so as to be freely inserted into an upper hole portion of the wedge receiver, and a holding pin of the main body member And a movable wedge member retracted from the lower portion of the wedge receiver when unlocked and having a groove portion for moving. Related to the body.

  The invention according to claim 2 relates to the connection structure for a temporary scaffold according to claim 1, wherein the movable wedge member rotates around the holding pin when the retracting member moves backward with the tip end portion as the center.

  The invention according to claim 3 relates to the connection structure for a temporary scaffold according to claim 1 or 2, 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 having a holding pin between two plate-like members to which the scaffolding material is fixed, a fixed wedge portion formed in the main body member so as to be freely inserted into an upper hole portion of the wedge receiver, Since it has a groove part to be engaged with the holding pin of the main body member and moved, it has a movable wedge member that is advanced to the lower part of the wedge receiver at the time of safety fixing and retracted from the lower part of the wedge receiver at the time of unlocking, The connection of the scaffolding material to the support can be carried out more safely, reliably and simply.

  According to a second aspect of the present invention, in the first aspect, since the movable wedge member rotates with the tip end up around the holding pin when retreating, the movable wedge member hinders the work when the fixing is released. Can be prevented and safety is improved.

  According to the invention of claim 3, in claim 1 or 2, a protrusion for hammer driving is formed at the rear part of the movable wedge member, so that safety fixing and unlocking by the movable wedge member can be performed more easily. It can be carried out.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
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 has a holding pin 25 between the two plate-like members 21 and 22, and the scaffold material P is fixed thereto. 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 Further, in this embodiment, the holding pin 25 is disposed at a substantially lower central portion of the main body member 20. Reference numeral 26 in the figure is a guide portion disposed on the upper side of the holding pin 25 at the rear of the main body member 20.

  The fixed wedge portion 30 is formed on 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. 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 has a groove 45 for engaging and moving with the holding pin 25 of the main body member 20, and is advanced to the lower part of the wedge receiver 15 when the safety is fixed, and is retracted from the lower part of the wedge receiver 15 when the fixation is released. Configured to be The movable wedge member 40 according to the embodiment is configured to be capable of linear movement in the front-rear direction by being held by the holding pin 25 and the guide portion 26 engaged with the groove portion 45 so as to be movable back and forth in the lateral direction. Yes. Further, the movable wedge member 40 is composed of a rod-like member 41 having a front end portion 42 formed in a wedge shape, and a protrusion 46 for hammer driving is formed at the rear portion. As shown in FIG. 25, the movable wedge member 40 protrudes from the rear portion of the main body member 20 so that the movable wedge member 40 is in a state substantially parallel to the support column 11 when the fixing is released. To prevent it from interfering with work.

  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 rotated about the holding pin 25 engaged with the groove portion 45 with the tip end portion 42 as the center to be substantially parallel to the column 11. is there.

  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, the movable wedge member 40 is rotated to a position where the upper end of the rod-like member 41 abuts against the guide portion 26 with the front end portion 42 being laterally centered around the holding pin 25 engaged with the groove portion 45, and is brought into a substantially horizontal state. . Then, the movable wedge member 40 is moved to the front side along the guide portion 26 in a state where the groove portion 45 is engaged with the holding pin 25, and the protrusion 46 formed at the rear portion of the movable wedge member 40 is moved rearward. The front portion 42 of the movable wedge member 40 is engaged with and fixed to the lower portion of the wedge receiver 15 by driving from the side toward the front side using a hammer or the like. 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 fixing (see FIG. 2), and then the movable wedge member 40 is rotated about the holding pin 25 engaged with the groove part 45 with the tip part 42 facing upward. After the vertical state, the protrusion 31 of the fixed wedge part 30 is removed from the upper hole part 16 of the receiving 15 to complete the removal of the temporary scaffolding connection structure 10 from the column 11.

  In the temporary scaffold connection structure 10 connected as described above, the main body member 20 having the holding pin 25 between the two plate-like members 21 and 22 and the scaffold member P fixed thereto, and the wedge receiver 15 It has a fixed wedge portion 30 formed in the main body member 20 so as to be freely inserted into the upper hole portion 16, and a groove portion 45 for engaging with and moving to the holding pin 25 of the main body member 20, and the wedge receiving portion at the time of safety fixing 15 has a movable wedge member 40 which is advanced to the lower part of 15 and retracted from the lower part of the wedge receiver 15 at the time of unlocking, so that the scaffolding material P can be attached to the support 11 safely, reliably and simply. At the same time, it can be easily removed.

  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 25 Holding pin 30 Fixed wedge part 40 Movable wedge member 45 Groove part P Scaffold material

Claims (3)

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 main body member having a holding pin between two plate-like members and 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;
A groove portion for engaging and moving with the holding pin 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. A connecting structure for a temporary scaffold characterized by the above.   The connection structure for a temporary scaffold according to claim 1, wherein the movable wedge member rotates with the front end portion up around the holding pin when retreating.   The temporary scaffolding connection structure according to claim 1 or 2, wherein a protrusion for hammer driving is formed at a rear portion of the movable wedge member.

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