Frame and Scaffold

Abstract

To provide a width timber and a scaffold that can be easily attached to and detached from a scaffold and can be stacked without waste. 【Solution means】 With respect to the temporary scaffold 10, the locking bent portion 120 of the width timber 100 abuts against the support column 20, and the extending portion 130 abuts against the tread board 30, so that the width timber 100 is attached to the eaves side of the temporary scaffold 10. That is, both ends of the width timber 100 are attached to the eaves side of the temporary scaffold 10 so as to enter the crank-shaped gap between the girder-side width timber 40 and the support column 20. In this state, the gap between the tread board 30 and the brace 22 is blocked by the extending portion 130 of the width timber 100, preventing tools and materials from falling.

Description

Technical Field

[0001] The present invention relates to an improvement of a ledger board and a scaffold installed at a construction site or the like.

Background Art

[0002] In building construction work or exterior wall repair work, etc., a temporary scaffold is temporarily installed to secure a working space. In order to prevent building materials and tools from falling from the scaffold, a ledger board is provided as a rising member at the end of the tread board (working floor). The ledger board is provided as needed on the girder side in the longitudinal direction of the scaffold or on the purlin side in the short direction.

[0003] For example, in Patent Document 1 below, locking members are provided at both ends in the length direction, and a locking portion provided at the lower end of the locking member is locked to a cross member of a temporary scaffold. By operating an operation portion provided at the upper portion of the locking member, the locking portion is changed from a locked state of being locked to the cross member to a locking release state of releasing the locked state, and the ledger board is lifted. The locking member is provided inside a locking member holding portion formed in a cross-sectional U-shape composed of a connecting plate connecting a pair of holding plates facing each other in the thickness direction of the ledger board main body. A temporary scaffold ledger board is disclosed in which the locking member is vertically movably guided to the locking member holding portion via a vertical movement guiding long hole provided in the holding plate and a pin penetrating the long hole.

[0004] In Patent Document 2 below, substantially U-shaped clamp pieces are formed at both ends of a ledger board main body, and through holes having a required diameter are formed at both ends of the opening of the clamp pieces. A temporary scaffold ledger board that can be fixed to a scaffold frame or the like with wedges is disclosed.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] By the way, among the above-described background arts, in Patent Document 1, a locking member is attached to both ends of a scaffold by a holding portion, and a width timber body is attached thereto, which requires time for attachment. Further, in Patent Document 2, a width timber is attached to a scaffold by clamp pieces provided at both ends of a scaffold body, which also requires time for attachment. Further, when width timbers are stacked, gaps are generated and there is a lot of waste, and efficient transportation cannot be performed.

[0007] The present invention focuses on the above points, and an object thereof is to provide a width timber and a temporary scaffold that can be easily attached to and detached from a scaffold and can be stacked without waste.

Means for Solving the Problems

[0008] To achieve the above object, the present invention provides a width timber installed on a scaffold, wherein locking bent portions are provided at both ends of a width timber body, and the width timber body and the locking bent portions are formed so as to have a shape that enters a gap formed between a width timber on the girder side of the scaffold and a column on the eaves side of the scaffold. Since the width timber enters the gap on the scaffold side, attachment to and detachment from the scaffold can be easily performed.

[0009] According to a main form, an extension portion for preventing falling is provided at the lower end of the width timber body, and a reinforcing portion for reinforcement is provided at the upper end of the width timber body.

[0010] According to another form, the locking bent portion, the extension portion, and the reinforcing portion are provided with respect to the width timber body so that their surfaces are visible from the scaffold side. Thereby, the width timbers of the present invention can be stacked without waste. The above and other objects, features, and advantages of the present invention will become apparent from the following detailed description and the accompanying drawings.

Effects of the Invention

[0011] According to the present invention, locking bent portions are provided at both ends of the width timber so as to enter the gap on the ridge side of the scaffold, so that the attachment and detachment to the scaffold can be easily performed, and each part is formed so as to form an obtuse angle with respect to the width timber main body, so that they can be stacked without waste.

Brief Description of the Drawings

[0012]

Figure 1

Figure 2

Figure 3

Mode for Carrying Out the Invention

[0013] Hereinafter, the best mode for carrying out the present invention will be described in detail based on embodiments.

Embodiment

[0014] In FIG. 1, the width timber 100 of the present embodiment is shown. In the figure, (A) shows how the width timber 100 looks when viewed from the scaffold side, (B) shows a side view seen from the direction of arrow FB in (A), (C) shows a plan view seen from the direction of arrow FC in (A), and (D) shows an end face seen in the arrow direction along the #D-#D line in (A).

[0015] In these figures, the width timber 100 is configured around a horizontally long width timber main body 110 corresponding to the width of the scaffold. Locking bent portions 120 are respectively provided at the left and right ends of the width timber main body 110, an extending portion 130 for covering the gap with the scaffold is provided at the lower end, and a reinforcing portion 140 is provided on the upper end side of the width timber main body 110.

[0016] Among these, when viewed from the upper surface side (in the direction of arrow FC), the locking bent portion 120 has a locking surface 124 extending on an inclined surface 122 bent toward the scaffold side, and the locking surface 124 is substantially parallel to the ledger body 110. When viewed from the front side, the locking bent portion 120 is provided such that both ends of the ledger body 110 open in the left - right direction. A long hole 126 is provided in the locking surface 124 as required. The long hole 126 is used, for example, to hang a hook (not shown) for loading and unloading the ledger 100.

[0017] Next, the extended portion 130 is provided to incline from the lower end of the ledger body 110 toward the scaffold side, and has a width slightly narrower than that of the ledger body 110. The reinforcing portion 140 is a rib formed by bending the upper end of the ledger body 110 toward the scaffold side, which improves the strength of the upper part of the ledger body 110 and makes it easier for an operator to hook a finger and handle it.

[0018] Furthermore, the angle θa of the inclined surface 122 with respect to the ledger body 110 (see Fig. (C) of the same figure), the angle θb of the extended portion 130 (see Fig. (B) of the same figure), and the angle θc of the reinforcing portion 140 (see Fig. (B) of the same figure) are all obtuse angles, and the angles of the locking bent portion 120, the extended portion 130, and the reinforcing portion 140 are set so that each part opens from the ledger body 110 and extended. For this reason, the surfaces of the ledger body 110, the locking bent portion 120, the extended portion 130, and the reinforcing portion 140 can all be seen from the scaffold side. Thereby, as shown in Fig. (E) of the same figure, the ledgers 100 can be stacked without waste. Therefore, they can be stacked together with scaffold boards, pipes, etc. constituting the temporary scaffold and loaded onto a truck, etc., or placed in a material storage area, and the workability is extremely good.

[0019] Next, with reference to FIG. 2, the state of installing the width timber 100 of this embodiment on the temporary scaffold will be described. There are various types of temporary scaffolds 10. In the example shown in FIG. 2(A), a horizontal arm 22 is attached to a vertically erected support column (construction site) 20 using an appropriate fitting (not shown), for example, a scaffold bracket, and a hook 32 of a tread board (scaffold board) 30 is hooked and attached thereto. At both longitudinal ends of the tread board 30, side-width timbers 40 are provided for the purpose of preventing tools and materials from falling.

[0020] With respect to such a temporary scaffold 10, as shown in FIG. 2(A), the width timber 100 is attached to the gable side of the temporary scaffold 10 such that the locking bent portion 120 of the width timber 100 abuts against the support column 20 and the extended portion 130 abuts against the tread board 30. That is, as shown in FIG. 2(B), both ends of the width timber 100 are attached to the gable side of the temporary scaffold 10 so as to enter the crank-shaped gap between the side-width timber 40 and the support column 20 (see FIG. 2(C)). In this state, the gap between the tread board 30 and the arm 22 is blocked by the extended portion 130 of the width timber 100, preventing tools and materials from falling.

[0021] As described above, the width timber 100 enters and is fixed in the gap between the side-width timber 40 and the support column 20. If necessary, it may be fixed to the support column 20 by the method illustrated in FIG. 3. The example in FIG. 3(A) is an example in which a wire 50 is wound around the support column 20 from above both ends of the width timber 100 while passing through the long hole 126 as appropriate for fixing. The example in FIG. 3(B) is an example using an L-shaped fixture 60, in which an L-shaped metal fitting 62 that abuts against the inside (scaffold side) of the width timber main body 110 is fixed to the support column 20 with a clamp 64.

[0022] As described above, according to this embodiment, the following effects can be obtained. a. Since the width timber 100 enters the gap between the support column 20 of the temporary scaffold 10 and the side-width timber 40 of the tread board 30, it can be easily attached. b. Since the inclined surface 122, the extended portion 130, and the reinforcing portion 140 are formed at obtuse angles with respect to the width wood body 110, they can be stacked without waste, and can be loaded onto a truck together with a scaffold board, a pipe, etc., or placed in a material storage area, and the workability is extremely good.

[0023] <Other Embodiments> Note that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention. For example, the following are also included. (1) The shapes and dimensions of the temporary scaffold 10 and the width wood 100 shown in the above embodiments are examples and are not limited thereto. For example, in the above embodiments, the locking surface 124 of the locking bent portion 120 and the width wood body 110 are substantially parallel, but may be appropriately changed according to the shape of the gap on the eaves side of the scaffold 10. (2) Depending on the gap on the eaves side of the temporary scaffold 10, the locking bent portion 120 of the width wood 100 may be slightly deformed to fit into the gap. (3) The above embodiments are examples in which the present invention is applied to a temporary scaffold in construction work, etc., but may be applied to various scaffolds such as a spectator stand and a scaffold for photography.

Industrial Applicability

[0024] According to the present invention, locking bent portions are provided at both ends of the width wood so as to fit into the gap of the scaffold, so that attachment and detachment to the scaffold can be easily performed, and since each part is formed at an obtuse angle with respect to the width wood body, it can be stacked without waste and is suitable for various scaffolds.

Explanation of Reference Numerals

[0025] 10: Temporary scaffold 20: Support column 22: Brace 30: Tread board 32: Hook 40: Side width wood 50: Wire 60: L-shaped fixture 62: L-shaped metal fitting 64: Clamp 100: Width timber 110: Width timber body 120: Locking bent portion 122: Inclined surface 124: Locking surface 126: Long hole 130: Extended portion 140: Reinforcing portion θa, θb, θc: Angles

Claims

1. A crossbar installed on a scaffold, Locking bending parts are provided at both ends of the crossbar body, The crossbar is characterized in that the crossbar body and the locking bending parts are formed so as to have a shape that can enter a gap formed between the girder-side crossbar of the scaffold and the strut on the wife side of the scaffold.

2. The crossbar according to claim 1, characterized in that an extended part for preventing falling is provided at the lower end of the crossbar body.

3. The crossbar according to claim 2, characterized in that a reinforcing part for reinforcement is provided at the upper end of the crossbar body.

4. The crossbar according to claim 3, characterized in that the locking bending part, the extended part, and the reinforcing part are provided on the crossbar body such that their surfaces are visible from the scaffold side.

5. A scaffold characterized in that the crossbar according to any one of claims 1 to 4 is provided on the wife side.

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