JP2010095974A - Planking for base fitting for scaffolding support - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a planking for base fittings for a scaffolding support capable of accurately fixing the base fittings at a specified place on a planking body by displacing the base fittings near an outer wall for a building from a center on the planking body even when the scaffolding support is positioned adjacently to the outer wall for the building. <P>SOLUTION: The planking 1 supports the square-shaped base fittings 5 for a jack 4 mounted at the lower end of the scaffolding support 3. The planking 1 is engaged and fitted to three corners in the four corners of the base fittings 5 at a central side place placing the base fittings 5 at the center of the planking body 2 and each place of corner-side positions biasedly placed at the corners on the top face of the planking body 2. The base fittings 5 can be fixed at the engaged and fitted positions while six engaging-fitting pawls 6 are protruded so as to be able to remove the base fittings 5 by rotating the base fittings at a required angle to the fixed positions. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a base metal base plate for stably installing a scaffolding column on the ground by supporting a base member of a jack attached to the lower end portion of the scaffolding column at a construction site.

As a base plate for a base metal fitting, for example, there is one as shown in Patent Document 1 below. This slat is composed of a flat slab main body and four substantially L-shaped guide protrusions provided so that the four corners of the square base metal fittings of the scaffolding struts are fitted to the center of the top surface of the slat slab. In use, the floor base body and the base metal fitting are attached to the space surrounded by the four guide projections by lowering the square base metal fitting of the scaffolding column and engaging the four corners of the base metal fitting. Without shifting laterally, the base bracket can be held on the center side of the top surface of the base plate body, and the scaffold strut can be easily stabilized.
Japanese Utility Model Publication No. 6-59532

  Since the above conventional laying board is designed to hold the base metal fitting on the center side of the upper surface of the laying board body, for example, when the scaffolding column is located close to the outer wall of the building in a narrow area, There was a problem that the floor could hit the building outer wall and the ground plate could not be grounded. Further, since the four guide protrusions simply engage with the corners of the base metal fitting, the base metal fitting may be detached from the four guide protrusions due to vertical vibration.

  In view of the above circumstances, the present invention is based on the structure in which the base bracket is connected to the building from the center on the floorboard body with the floorboard body grounded to the ground even when the scaffolding column is located close to the outer wall of the building. It is an object of the present invention to provide a base plate for a base column of a scaffolding strut that can be accurately fixed at a predetermined position on the base plate body by shifting to the side closer to the outer wall.

  Means for solving the above-described problems will be described with reference numerals in the embodiments described later. The invention according to claim 1 includes a square base metal fitting 5 of the jack 4 attached to the lower end portion of the scaffolding column 3. A base plate 1 is a base plate that is supported on the top surface of the base plate body 2 at each of the center side position where the base metal fitting 5 is placed at the center of the base plate body 2 and the corner side position where the base metal plate 5 is placed away from the corner. The base metal fitting 5 can be fixedly engaged with three corner portions of the four corner portions 5 and the base metal fitting 5 can be fixed at the engaged position, and the base metal fitting 5 is rotated by a required angle with respect to the fixed position. Six engaging claws 6... Project so as to be removable.

  The second aspect of the present invention is the base metal base plate of the scaffolding pillar according to the first aspect, wherein the base plate body 2 includes a top plate portion 7, a peripheral wall portion 8 projecting downward from the peripheral edge thereof, and the peripheral wall portion 8 and the ceiling plate. It consists of reinforcing ribs 9 arranged in a grid shape or a web shape in the space surrounded by the plate portion 7. The top plate portion 7 corresponds to the plan view shape of each engagement claw 6. When the floorboards 1 are stacked, the engaging claws 6 of the lower floorboard 1 are inserted into the openings 10 of the upper floorboard 1 and the plurality of floorboards 1 are stepped in this state. It is possible to stack.

  Claim 3 is the base metal base plate of the scaffolding pillar according to claim 1 or 2, wherein each of the engaging claws 6 has a substantially L-shaped rising wall portion 6a in plan view and the L-shaped rising wall. The upper wall part 6b protrudes inward horizontally from the upper end of the part 6a.

  The effect of the invention by the above-described solution means will be described with reference numerals of the embodiments described later. According to the invention according to claim 1, the base metal fitting 5 of the jack 4 is usually attached to the center side of the upper surface of the floorboard body 2. The base metal fitting 5 is accurately fixed by placing it at the position and engaging the three corner portions of the square base metal fitting 5 with the three engaging claws 6, 6 and 6 at the central position. Can do. When removing the base metal fitting 5 from the center-side fixing position, the base metal fitting 5 is rotated by a required angle so that the base metal fitting 5 is detached from the three engaging claws 6, 6, 6 at the central position. Can be removed.

  Further, when the base column 5 is placed on the center of the top surface of the floor plate 1 when the scaffolding column 3 is located close to the building outer wall W, the end of the floor plate body 2 hits the building outer wall W and the floor plate 1 is removed. If the ground cannot be grounded, the base bracket 5 may be set at the corner side position of the base plate body 2 close to the outer wall W of the building H, whereby the scaffolding column 3 is close to the outer wall W of the building H. Even so, the base metal 5 can be accurately fixed by accurately grounding the floor plate 1 to the ground.

  Further, since the upper surface of the floor plate main body 2 is entirely flat except for the portions where the six engaging claws 6 are projected, the base metal fitting 5 can be easily rotated on the upper surface of the floor plate main body 2. At the same time, when the base metal fitting 5 is repositioned between the center side position and the corner side position on the top surface of the base plate body 2, the base metal fitting 5 is rotated at an appropriate angle so that the corner portion is not engaged with the engaging claws 6. Then, by simply sliding the top surface of the floorboard body 2 as it is, the position can be easily and easily changed from the center position to the corner position and from the corner position to the center position.

  According to the invention which concerns on Claim 2, the flooring board main body 2 is in the space part enclosed by the top-plate part 7, the surrounding wall part 8 which protrudes downward from the periphery of this, and this surrounding-wall part 8 and the top-plate part 7. When the floor plate 1 is stacked, the top plate portion 7 is provided with openings 10 having a shape corresponding to the plan view shape of the engaging claws 6. Since each engaging claw 6 of the lower side flooring board 1 is inserted into the opening 10 of the upper side flooring board 1, the plurality of flooring boards 1 can be stacked up and down in a stable state and the collapse of the load can be prevented. Moreover, with the structure of the base plate body 2 as described above, it is possible to reduce the weight of the base plate body 2 and increase its strength.

  As in the invention according to claim 3, each engaging claw 6 includes a substantially L-shaped rising wall portion 6a in plan view and an upper wall protruding inward horizontally from the upper end of the L-shaped rising wall portion 6a. If it consists of the part 6b, while the three corner parts of the square base metal fitting 5 can be engaged precisely, the base metal fitting 5 can be easily removed by rotating the base metal fitting 5 by a required angle.

  A preferred embodiment of the present invention will be described below with reference to the drawings. FIG. 1 (a) is a perspective view showing a base metal base plate according to the present invention, and FIG. 1 (b) is a schematic view showing the use state of the base plate. 2 (a) is a plan view of the laying board, FIG. 2 (b) is a bottom view thereof, and FIG. 3 (a) is a side view of the laying board as viewed from an arrow A in FIG. 2 (a). Fig. 2 (b) is a side view of the bottom plate viewed from arrow B in Fig. 2 (a), (c) is a side view of the bottom plate viewed from arrow C in Fig. 2 (a), and (d) is a side view of Fig. 2 (A) DD sectional view taken on the line, (e) is the EE sectional view taken on (a) in FIG.

  This floor board 1 supports the square base metal fitting 5 of the jack 4 attached to the lower end part of the scaffolding column 3 as shown in FIG. 1 (b), and is a square floor board formed by a plastic material. It has a main body 2, and a square base metal fitting 5 is provided on the top surface of the base plate main body 2, and a central portion of the base plate main body 2 as shown by 5 (a-1) in FIG. 2 (a) and FIG. Each of the center side position placed on the corner and the corner side position placed away from the corner of the base plate body 2 as shown by 5 (b-1) in FIG. 2 (a) and FIG. 4 (b). At the position, the base metal fitting 5 can be fixed to the three corner portions of the four corner portions of the square base metal fitting 5 so that the base metal fitting 5 can be fixed at the engagement position. As shown by 5 (a-2) and 5 (b-2) in FIG. 2 (a), the base metal fitting 5 can be removed by rotating approximately 45 degrees. So that the pawl 6 ... for fitting six of engagement are projected together.

  The engaging claws 6 projecting from the upper surface of the floorboard body 2 as described above are as shown in FIGS. 1 (a), 2 (a), 3 (d) and 3 (e). An upright wall 6a having a substantially L-shape in plan view, and an upper wall that protrudes horizontally inward from the upper end of the upright wall portion 6a so that the shape in plan view forms an unequal side pentagon (see FIG. 2 (a)) A plurality of ribs 6o are provided from the inner surface of the upright wall portion 6a to the inner surface of the upper wall portion 6b. The rib 6o has a function of reinforcing the upright wall portion 6a and the upper wall portion 6b and engaging with the corner portion of the base metal fitting 5 accurately.

  As can be seen from (b) of FIG. 2 and (d) and (e) of FIG. 3, the bottom plate body 2 includes a top plate portion 7 and a peripheral wall portion 8 projecting downward from the periphery of the top plate portion 7; It consists of reinforcing ribs 9 arranged in a spider web in a space S surrounded by the peripheral wall portion 8 and the top plate portion 7. Is formed. Further, the top plate portion 7 is provided with an opening 10 (see FIG. 2B) having a shape corresponding to an unequal side pentagon which is a plan view shape of each engaging claw 6 as shown in FIG. Thus, when stacking the floorboards 1, the engaging claws 6 of the lower floorboard 1 can be inserted into the openings 10 of the upper floorboard 1 and a plurality of floorboards 1 can be stacked in this state. It can be done. In this embodiment, the reinforcing ribs 9 are arranged in the space S in the form of a web, but the reinforcing ribs 9 may be arranged in a grid shape. By disposing such a web-like or grid-like reinforcing rib 9, it is possible to reduce the weight of the floorboard body 2 and increase its strength.

  When the base plate 5 constructed as described above is used to support the base bracket 5 of the jack 4 attached to the lower end portion of the scaffolding column 3 as shown in FIG. 4 is set at the center position as shown by the phantom line 5 (a-1) in FIG. 2 (a), and the three engagement claws 6, 6 at the center position are set. The base metal fitting 5 can be fixed by engaging the three corner portions of the square base metal fitting 5 with 6.

  In order to fix the base metal fitting 5 to the center side position, the base metal fitting 5 is indicated by a virtual line 5 (a-2) in FIG. The base metal fitting 5 is rotated by approximately 45 degrees from the position indicated by the phantom line 5 (a-2), so that three of the four corner portions have three engagements. The engagement claws 6, 6, and 6 are engaged with each other to be in the positions indicated by phantom lines 5 (a-1) in the figure, and are fixed by the three engagement claws 6, 6, and 6 at this position. It will be. When removing the base metal fitting 5 from this fixed position, the base metal fitting 5 may be rotated approximately 45 degrees and returned to the position indicated by the phantom line 5 (a-2) in FIG.

  It should be noted that at the position where the base metal fitting 5 is rotated approximately 45 degrees with respect to the fixed position, that is, the position indicated by the phantom line 5 (a-2) in FIG. Since the interval N is slightly longer than the length L between the opposing sides of the square base metal fitting 5, the base metal fitting 5 can be easily inserted and removed.

  Further, in the state of use as shown in FIG. 1 (b), when the scaffolding column 3 is positioned close to the outer wall W of the building H, the base metal fitting 5 is not placed on the center of the upper surface of the floor plate 1. When the end of the floorboard body 2 hits the building outer wall W and the floorboard 1 cannot be grounded to the ground, the base metal fitting 5 is close to the outer wall W of the building H as shown in FIG. What is necessary is just to set to the corner side position which deviated to the corner of the flooring board main body 2, and even if the scaffolding pillar 3 adjoins the outer wall part W of the building H by it, the flooring board 1 can be earth | grounded correctly to the ground.

  That is, in this case, the base metal fitting 5 is placed, for example, at the position indicated by the phantom line 5 (a-2) on the center side of the top surface of the top plate portion 7 of FIG. 2 (a). From the state, shift to the corner side as it is and position it at the position indicated by the phantom line 5 (b-2) in the same figure, and rotate the base metal fitting 5 approximately 45 degrees at the position indicated by the phantom line 5 (b-2). Thus, the base metal fitting 5 has its three corners engaged with the three engaging claws 6, 6, 6 respectively, and is in the position indicated by the phantom line 5 (b-1) in FIG. Thus, the three engaging claws 6, 6, 6 are fixed.

  2 (a) in FIG. 2 (b-2), the distance N between the two opposing engaging claws 6, 6 is the length L between the opposing sides of the square base metal fitting 5. Since it is slightly longer than that, the base metal fitting 5 can be easily inserted and removed.

  As described above, even when the scaffolding column 3 is disposed close to the outer wall portion W of the building H, the base bracket 5 is placed in the center on the floor plate main body 2 with the floor plate main body grounded to the ground as it is. The base metal fitting 5 can be accurately fixed at the corner side position by shifting from the side of the section to the side closer to the building outer wall W and positioning it on the corner side.

  In particular, in the base plate 1, the upper surface of the base plate body 2 is entirely flat except for the portions where the six engaging claws 6 project, so that the base metal fitting 5 rotates on the upper surface of the base plate body 2. When the base metal fitting 5 is repositioned between the center side position and the corner side position on the top surface of the base plate body 2, the base metal fitting 5 is engaged with the engaging claws 6 at the corner portion. It is possible to easily and easily change the position from the center side position to the corner side position and from the corner side position to the center side position by simply rotating the top surface of the floorboard body 2 as it is and rotating it by an appropriate angle.

  The floor plate 1 includes a top plate portion 7, a peripheral wall portion 8 that protrudes downward from the periphery of the top plate portion 7, and reinforcing ribs 9 disposed in a space surrounded by the peripheral wall portion 8 and the top plate portion 7. Since the opening 10 having a shape corresponding to the plan view shape of each of the engaging claws 6 is provided in the top plate portion 7, when the floor plate 1 is stacked, as shown in FIG. In addition, by causing the engaging claws 6 of the lower side flooring board 1 to enter the opening 10 of the upper side flooring board 1, the plurality of flooring boards 1 can be stacked up and down in a stable state, and the collapse of the load can be prevented.

  In this case, as shown in FIG. 5, the engaging claws 6 are stacked in such a manner that the rising wall portion 6 a rises at an inclined angle with respect to the upper surface of the base plate body 2. At the time, as shown in FIG. 5, the engaging claws 6 of the lower floorboard 1 are placed in the openings 10 of the upper floorboard 1 with the peripheral wall portions 8 of the floorboard 1 of each stage aligned in the same plane. In addition to entering, the upper side floor plate 1 is placed on the top surface of the top plate portion 7 of the lower side floor plate 1, so that a plurality of floor plates 1 can be effectively stacked without any gaps.

  In addition, since the base plate 5 can fix the base metal fitting 5 at the center side position and the corner side position on the top surface of the base plate body 2 as described above, the center side fixing position and the corner side fixing position are set. Compared with the case where each is provided on a separate floor plate, a large cost reduction can be achieved.

(a) is a perspective view showing a base metal base plate according to the present invention, and (b) is a schematic explanatory view showing a use state of the base plate. (a) is a plan view of the floorboard, and (b) is a bottom view thereof. (a) is a side view of the bottom plate viewed from arrow A in FIG. 2 (a), (b) is a side view of the bottom plate viewed from arrow B in FIG. 2 (a), and (c) is a side view of FIG. 2A is a side view of the base plate as viewed from the arrow C in FIG. 2A, FIG. 2D is a sectional view taken along the line DD in FIG. 2A, and FIG. 2E is a sectional view taken along the line EE in FIG. . (a) is a perspective view showing a state in which the base metal fitting is set on the center side of the floor board, and (b) is a perspective view showing a state in which the base metal fitting is set on the corner side of the floor board. It is an expanded sectional view which shows the stacked state of a floor board.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Laying board 2 Laying board main body 3 Scaffolding support | pillar 4 Jack 5 Base metal fitting 6 Engagement nail | claw 6a Upright wall part 6b Upper wall part 7 Top plate part 8 Perimeter wall part 9 Reinforcement rib 10 Opening part

Claims (3)

  A base plate that supports the square base bracket of the jack that is attached to the lower end of the scaffolding pillar, and is placed on the top surface of the base plate body so as to be offset from the center side position and corner where the base bracket is placed at the center of the base plate body. The base metal fitting can be fixed at three corners of the four corners of the base metal fitting at each corner position, and the base metal fitting can be fixed at the engaged position. A base metal base plate for scaffolding struts that has six engaging claws protruding so that the base metal can be removed by rotating it at an angle.   The floorboard body has a top plate portion, a peripheral wall portion projecting downward from the periphery of the top plate portion, and reinforcing ribs arranged in a grid shape or a web shape in a space portion surrounded by the peripheral wall portion and the top plate portion. The top plate is provided with an opening having a shape corresponding to the shape of each engagement claw in plan view, and when the floor plate is stacked, each engagement nail of the lower floor plate is connected to the upper side floor plate. The base metal base plate for a scaffolding column according to claim 1, wherein a plurality of base plates can be stacked in this state by entering into the opening.   Each said engaging nail | claw consists of an upright wall part of a substantially L shape in planar view, and the upper wall part which protrudes inward in the horizontal direction from the upper end of this L-shaped upright wall part. Base plate for base bracket of scaffolding support.

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