JP2024111886A - Temporary Stage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a temporary stage, which is an assembly temporary stage of using next generation columns for scaffolds of wedge binding type scaffolds as columns, allowing assembly without using a sleeper jack, a sleeper, and a floor joist, in a flat shape without any projection of a plate, a bolt, and the like on an upper surface of stage members, as well as preventing traveling of a bogie from being obstructed.

SOLUTION: An assembly temporary stage of using next generation columns for scaffolds of wedge binding type scaffolds as columns 1 comprises: jack hardware 19 with supporting flanges 18 formed at an upper end; and a rectangular stage member 12 configured to attach a metal plate body on a frame assembly of flames. The jack hardware 19 is attached on an upper end of the column 1, an angled corner of the rectangular stage member 12 is closely mounted on the supporting flange 18 of the jack hardware 19, and a lower side of surrounding frames of the rectangular stage member 12 is fixed on the supporting flange 18 with a bolt.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention relates to a temporary stage used as a work stage at construction sites, etc.

In recent years, wedge-tightened scaffolding, known as next-generation scaffolding, has come into widespread use. Although illustrations of this next-generation scaffolding are omitted, socket fittings (or flanges) are erected at a fixed interval between the vertical posts, and wedge-shaped insert fittings that are suspended at both ends of a horizontal bar are inserted from above into the socket fittings of two posts lined up front and back, thereby connecting both posts and the horizontal bar. Also, hooks on the left and right ends of the tread are hooked onto two adjacent horizontal bars, thereby connecting the tread to both horizontal bars.

A temporary stage using such a next-generation scaffold is also shown in the following patent document.
Patent No. 2999958 Patent No. 6847616

Figures 17 to 19 show an example of a temporary stage that uses next-generation scaffolding, where 1 in the figure is a scaffolding support for next-generation scaffolding, which is a wedge-tightening type scaffolding, and flanges 1a with fastening insertion holes as described above are provided at regular intervals in the vertical direction.

In the figure, 2 is a combination of handrails and diagonals called a leading handrail. The handrails and diagonals 2 are placed across two rows, one in front and one behind, and between posts 1 that are set up at intervals in the left-right direction for each row, and are secured in place with wedge-shaped insert fittings or hooks, etc.

A stilt jack 3 (jack hardware) with a U-shaped support hardware 4 attached is inserted into the upper end of the support 1, a stilt jack 5 is placed on the support hardware 4 of the stilt jack 3, a joist 6 is laid on top of that, and scaffolding boards 7 are arranged on top of the joists 6 to form the stage.

Conventional temporary stages are constructed in this way by using joist jacks 3 to set up scaffolding boards 7 through joists 5 and floor joists 6, which makes assembly tedious, limits the load capacity, and makes it impossible to bring in heavy objects.

In addition, if handrails are to be installed on the outer perimeter, they must be assembled using special parts or installed using single pipes and clamps, which is also time-consuming.

It is possible to assemble the scaffolding without using the joist jacks 3, joists 5, and floor joists 6, but as shown in Figure 20, the top of the support 1 would protrude above the scaffolding board 7, which would be a nuisance. Gaps and steps would be created in the hooks 7a of the scaffolding board 7.

As an assembly method without using the joist jacks 3, joists 5, or floor joists 6, a support flange for supporting the scaffolding can be formed on the support pillars 1 as shown in Figures 21 to 23, and this can be used to form a scaffolding board (supporting a rectangular stage member) with a support frame as a strength member. Note that the temporary stage shown in Figures 21 to 23 was envisioned by the inventor of this application, but was not actually used.

The support flange 8 is a horizontal rectangular flange attached to the jack hardware 9 that is inserted into the support column 1, and angles 11 and nuts 10 are attached to the corners.

The scaffolding board is a rectangular stage member 12, and is made up of a rectangular metal plate body 13 framed by a frame material 14 made of hollow pipes.

A long hole 15 is formed at the corner of the metal plate 13, and the corner portion is placed on the support flange 8. The corner portion of the scaffolding board 7 is then pressed from above with a pressing plate 16, and the fixing bolt 17 is threaded into the nut 10 through the long hole 16a of the pressing plate 16 and the long hole 15 of the metal plate 13.

At the corners of the rectangular stage member 12, gaps occur between the edges of the frame material 14, and the pressing plate 16 also serves as a blocking plate to close these gaps.

The jack hardware 9 for the handrail stand has a pin socket protruding from the center of the support flange 8 for inserting the connecting pin of the handrail support 1'. The corresponding plate 16 has a hole in the center through which the pin socket is inserted (not shown).

When the rectangular stage member 12 is fixed to the pressure plate 16 in this manner, the thickness of the pressure plate 16 and the heads of the fixing bolts protrude from the floor surface, which has the disadvantage of interfering with the movement of the trolley and causing workers to trip over it.

The object of the present invention is to provide a temporary stage that eliminates the inconveniences of the above-mentioned conventional examples, and uses next-generation scaffolding supports, which are wedge-tightened scaffolding supports, and can be assembled without the use of joist jacks, joists, or floor beams. The top surface of the stage components can be made flat without protruding plates or bolts, so there is no risk of tripping, and the stage does not interfere with the running of carts.

To achieve the above object, the present invention described in claim 1 is an assembled temporary stage that uses next-generation scaffolding pillars, which are wedge-tightened scaffolding, as stage pillars, and is comprised of a jack metal fitting with a support flange formed at the upper end and a rectangular stage member in which a metal plate is affixed to the framework of a metal frame, the jack metal fitting is attached to the upper end of the pillar, the corners of the rectangular stage member are placed on the support flange of the jack metal fitting so that they are closely packed, and the lower side of the peripheral frame of the metal frame framework of the rectangular stage member is bolted to the support flange.

According to the present invention described in claim 1, the rectangular stage member is a metal plate attached to the framework of a metal frame, and the framework of the metal frame of the rectangular stage member acts as a strength member and a support member, so joists and floor beams do not need to be used. In addition, by butting the peripheral frame corners of the framework of the metal frame, which are the corners of the rectangular stage member, no gaps are created at the corners of the rectangular stage member.

In addition, the support flange of the jack hardware is bolted to the underside of the perimeter of the metal frame of the rectangular stage member, so the fixing part does not protrude upwards and the top surface is flat with no protrusions.

The gist of the present invention described in claim 2 is that a protrusion is provided on the support flange of the jack hardware to engage with the inside corner of the peripheral frame of the metal frame of the rectangular stage member to prevent the rectangular stage member from shifting.

According to the present invention described in claim 2, the protrusion is, for example, a pin, and the support flange of the jack hardware serves to align the lower side of the peripheral frame of the metal frame of the rectangular stage member until it is bolted.

The gist of the present invention described in claim 3 is that a socket metal fitting is installed on the lower end of the post on the support flange of the jack metal fitting, and the post that engages with this socket metal fitting is used as a handrail post.

According to the present invention described in claim 3, handrails can be provided around the stage by erecting handrail posts on socket hardware that is erected on the support flange of the jack hardware.

As described above, when using next-generation scaffolding supports, which are wedge-tightened scaffolding supports, the temporary stage of the present invention can be assembled without the use of joist jacks, joists, or floor joists, and the top surface of the stage components can be made flat without protruding plates or bolts, so there is no risk of tripping and no hindrance to the running of carts.

FIG. 1 is a side view showing one embodiment of the temporary stage of the present invention. 1 is a plan view showing an embodiment of a temporary stage of the present invention. FIG. FIG. 2 is a side view of a joint portion of the temporary stage of the present invention. FIG. 2 is a plan view of a joint portion of the temporary stage of the present invention. FIG. 13 is a side view of a joint portion of a corner of the temporary stage of the present invention. FIG. 13 is a plan view of a joint portion of a corner of the temporary stage of the present invention. FIG. 2 is a front view of a rectangular stage member of the temporary stage of the present invention. FIG. 2 is a plan view of a rectangular stage member of the temporary stage of the present invention. FIG. 2 is a side view of a rectangular stage member of the temporary stage of the present invention. FIG. 13 is a side view of the joint for erecting handrail posts on the temporary stage of the present invention. FIG. 13 is a plan view of the joints for erecting handrail posts on the temporary stage of the present invention. FIG. 2 is a side view of a jack hardware for erecting handrail supports for a temporary stage of the present invention. FIG. 2 is a plan view of a jack hardware for erecting handrail supports for a temporary stage of the present invention. FIG. 2 is a plan view showing an example of a framework of a metal frame that constitutes a rectangular stage member of the temporary stage of the present invention. This is a cross-sectional view of line AA in Figure 14. This is a cross-sectional view of line BB in Figure 14. FIG. FIG. FIG. FIG. 13 is a perspective view showing another conventional example. This is a perspective view of a joint showing an idea for a temporary stage that does not require joists or floor joists. This is a plan view showing a temporary stage design that does not require joists or floor beams. This is a side view showing a proposed temporary stage that does not require joists or floor beams.

The following is a detailed explanation of the embodiment of the present invention with reference to the drawings. Fig. 1 is a side view of one embodiment of the temporary stage of the present invention, and Fig. 2 is a plan view of the same. This is an assembled temporary stage that uses next-generation scaffolding supports, which are wedge-fastening type scaffolding, as supports 1, and supports 1 are provided with flanges 1a with fastening insertion holes formed therein at predetermined intervals in the vertical direction, as described above.

A handrail/bracing 2 called a leading handrail is stretched across two columns 1 set up at intervals in the left-right direction in each row, and is secured in place with a wedge-shaped insert metal fitting or hook, etc.

The present invention consists of the support pillar 1, a jack hardware 19 with a support flange 18 formed at the upper end, and a rectangular stage member 12 with a metal plate 13 attached.

Figure 14 shows an example of this metal frame 20, and as shown in Figures 15 and 16, square pipes are used as the frame material, and vertical and horizontal bars are arranged inside the rectangular peripheral frame 20a to form a lattice structure. In addition to square pipes, channel materials and I-beams can also be used for this frame material.

The support flanges 18 of the jack hardware 19 and the triangular plate 20b for fixing the rectangular stage member 12 are attached to the corners (four corners) of the lower side of the rectangular peripheral frame 20a. The triangular plate 20b has holes for inserting bolts and holes for inserting positioning pins.

A handle-retaining bracket 20c is provided in the center of the horizontal frame that constitutes the rectangular peripheral frame 20a. This handle-retaining bracket 20c is made of angle material, with one side serving as a horizontal flange with a handle through hole, and the other side attached to the side of the rectangular peripheral frame 20a by welding.

The rectangular stage member 12 has the strength to support a load by itself, and comes in several sizes, including a rectangular shape (approximately 900 x 1200) as shown in Figure 8, as well as square shapes (approximately 900 x 900), rectangular shapes (approximately 600 x 1200), and rectangular shapes (approximately 600 x 900) (not shown), and a checkered steel plate is used for the rectangular metal plate 13.

The rectangular metal plate 13 is attached to the metal frame 20 by welding, and is approximately the same size as the metal frame 20.

The rectangular stage member 12 is provided with a U-shaped round bar handle 23 via the handle-retaining metal fitting 20c, and can be pulled out by inserting it into the insertion hole of the handle-retaining metal fitting 20c. Two handles 23 are provided symmetrically. These handles 23 are used to transport and place the rectangular stage member 12.

The present invention involves placing the rectangular stage member 12 on the support flange 18 of the jack hardware 19 with the corners of the rectangular stage member 12 closely packed together, and bolting the underside of the peripheral frame 20a of the metal frame 20 of the rectangular stage member 12 to the support flange 18.

As shown in Figures 5 and 6, the jack hardware 19 is inserted into the end of the scaffolding support 1 and is equipped with a nut collar 19a with a handle on the screw rod body of a rod jack, and a horizontal square plate bearing flange 18 is provided on top.

The support flange 18 has a bolt insertion hole 22 and a positioning pin 21 protruding from it.

The size of the support flange 18 is such that the corners of the rectangular stage members 12 can be placed on one quarter of it, and one support flange 18 can accommodate the corners of four rectangular stage members 12 in a closely packed manner.

The bolt insertion holes 22 and positioning pins 21 are formed in each quarter of the support flange 18.

The temporary stage of the present invention can be equipped with handrails around the perimeter, and uses a jack fitting 19 for installing handrail posts, as shown in Figures 12 and 13.

The jack hardware 19 for installing handrail posts has a socket hardware 24 that is installed at one corner of the support flange 18 and is attached to the lower end of the post. The socket hardware 24 is composed of a support piece 24a that stands on the support flange 18 and a sleeve tube 24b that is welded to this support piece 24a. The sleeve tube 24b is a socket hardware that is attached to the lower end of the handrail support post 1'.

A bolt insertion hole 27 is provided at the bottom of the sleeve tube 24b and the handrail support 1' that is inserted into it.

In this way, the temporary stage of the present invention is constructed by attaching jack hardware 19 to the upper ends of the pillars 1 that are erected at intervals, and placing and lining up the rectangular stage members 12 on the support flanges 18.

As shown in Figure 2, in the inner part of the temporary stage, the rectangular stage members 12 are placed closely together by butting the corners of the peripheral frame 20a of the metal frame 20 of the rectangular stage member 12 against the support flange 18 of the jack hardware 19, and on the outer periphery, one or two corners of the rectangular stage members 12 are placed on the support flange 18 of the jack hardware 19 for installing the handrail posts.

The positioning pin 21 on the support flange 18 engages with the triangular plate 20b at the corner of the lower side of the peripheral frame 20a of the rectangular stage member 12 to prevent it from slipping.

The lower triangular plate 20b of the rectangular stage member 12 was bolted to the support flange 18 using bolts and nuts 25.

The bolts of the bolt/nut 25 can be inserted from below through the bolt insertion holes 22 of the support flange 18 and the bolt insertion holes 2 of the triangular plate 20b and secured with nuts, so that they do not protrude above the rectangular stage member 12.

The rectangular stage members 12 laid out in this way are supported by the support flanges 18 of the jack hardware 19 of the support pillars 1 to form a temporary stage, but on the outer periphery of the temporary stage, as shown in Figures 10 and 11, the lower end of the support pillar 1' for the handrail is inserted into the sleeve tube 24b using the socket hardware 24 of the jack hardware 19 for installing the handrail pillars, and the bolt is inserted through the bolt insertion hole 27 to secure it in place.

The handrail support pillar 1' is a next-generation scaffolding support pillar, and the handrail is assembled to it to complete the structure.

1...Support 1a...Flange 1'...Handrail support 2...Handrail/bracing combination member 3...Side jack 4...Side support hardware 5...Side joist 6...Joist 7...Scaffolding board 7a...Hook 8...Support flange 9...Jack hardware 10...Nut 11...Angle 12...Rectangular stage member 13...Rectangular metal plate 14...Frame material 15...Oval hole 16...Press plate 16a...Oval hole 17...Fixing bolt 18...Support flange 19 Jack hardware 19a...Nut collar with handle 20...Metal frame 20a...Surrounding frame 20b...Triangular plate 20c...Receiving hardware for handle engagement 21...Positioning pin 22...Bolt insertion hole 23...Handle 24...Socket hardware 24a...Support piece 24b...Sheath tube 25...Bolt/nut 27...Bolt insertion hole

The present invention relates to a temporary stage used as a work stage at construction sites, etc.

In recent years, wedge-fastening scaffolding has become more common. Although not shown in the drawings, this type of scaffolding has socket fittings (or flanges) set up at a fixed interval between the vertical posts, and wedge-shaped insert fittings suspended at both ends of a horizontal rail are inserted from above into the socket fittings of two posts lined up front and back, thereby connecting the two posts and the horizontal rail. Also, hooks at the left and right ends of a tread are hooked onto two horizontal rails adjacent to each other, thereby connecting the tread to both horizontal rails.

A temporary stage using such scaffolding is also shown in the following patent document.
Patent No. 2999958 Patent No. 6847616

Figures 17 to 19 show an example of a temporary stage that uses wedge-fastening scaffolding , in which 1 is a scaffolding support for the wedge-fastening scaffolding, and flanges 1a having insertion holes for fastening as described above are provided at predetermined intervals in the vertical direction.

In the figure, 2 is a combination of handrails and diagonals called a leading handrail. The handrails and diagonals 2 are placed across two rows, one in front and one behind, and between posts 1 that are set up at intervals in the left-right direction for each row, and are secured in place with wedge-shaped insert fittings or hooks, etc.

A stilt jack 3 (jack hardware) with a U-shaped support hardware 4 attached is inserted into the upper end of the support 1, a stilt jack 5 is placed on the support hardware 4 of the stilt jack 3, a joist 6 is laid on top of that, and scaffolding boards 7 are arranged on top of the joists 6 to form the stage.

Conventional temporary stages are constructed in this way by using joist jacks 3 to set up scaffolding boards 7 through joists 5 and floor joists 6, which makes assembly tedious, limits the load capacity, and makes it impossible to bring in heavy objects.

In addition, if handrails are to be installed on the outer perimeter, they must be assembled using special parts or installed using single pipes and clamps, which is also time-consuming.

It is possible to assemble the scaffolding without using the joist jacks 3, joists 5, and floor joists 6, but as shown in Figure 20, the top of the support 1 would protrude above the scaffolding board 7, which would be a nuisance. Gaps and steps would be created in the hooks 7a of the scaffolding board 7.

As an assembly method without using the joist jacks 3, joists 5, or floor joists 6, a support flange for supporting the scaffolding can be formed on the support pillars 1 as shown in Figures 21 to 23, and a scaffolding board (supporting a rectangular stage member) with a support frame as a strength member can be formed as shown in Figures 21 to 23. Note that the temporary stage shown in Figures 21 to 23 was envisioned by the inventor of this application, but was not actually used.

The support flange 8 is a horizontal rectangular flange attached to the jack hardware 9 that is inserted into the support column 1, and angles 11 and nuts 10 are attached to the corners.

The scaffolding board is a rectangular stage member 12, and is made up of a rectangular metal plate body 13 framed by a frame material 14 made of hollow pipes.

A long hole 15 is formed at the corner of the metal plate 13, and the corner portion is placed on the support flange 8. The corner portion of the scaffolding board 7 is then pressed from above with a pressing plate 16, and the fixing bolt 17 is threaded into the nut 10 through the long hole 16a of the pressing plate 16 and the long hole 15 of the metal plate 13.

At the corners of the rectangular stage member 12, gaps occur between the edges of the frame material 14, and the pressing plate 16 also serves as a blocking plate to close these gaps.

The jack hardware 9 for the handrail stand has a pin socket protruding from the center of the support flange 8 for inserting the connecting pin of the handrail support 1'. The corresponding plate 16 has a hole in the center through which the pin socket is inserted (not shown).

When the rectangular stage member 12 is fixed to the pressure plate 16 in this manner, the thickness of the pressure plate 16 and the heads of the fixing bolts protrude from the floor surface, which has the disadvantage of interfering with the movement of the trolley and causing workers to trip over it.

The object of the present invention is to eliminate the inconveniences of the above-mentioned conventional examples, and to provide a temporary stage that is an assembly stage that uses scaffolding supports of a wedge-fastening type scaffolding as supports, can be assembled without using joist jacks, joists or floor joists, and has a flat top surface with no protruding plates or bolts, thereby eliminating the risk of tripping and not interfering with the running of carts.

In order to achieve the above-mentioned object, the present invention described in claim 1 is an assembled temporary stage that uses scaffolding supports as stage supports , with flanges formed with insertion holes for fastening wedge-tightening scaffolding, arranged at predetermined intervals in the vertical direction , and comprises a jack hardware with a bearing flange formed at its upper end and a rectangular stage member made of a metal plate affixed to the framework of a metal frame, the jack hardware is attached to the upper end of the support, the rectangular stage member is placed on the bearing flange of the jack hardware with the corners of the rectangular stage member closely spaced, and the underside of the peripheral frame of the metal frame framework of the rectangular stage member is bolted to the bearing flange.

According to the present invention described in claim 1, the rectangular stage member is a metal plate attached to the framework of a metal frame, and the framework of the metal frame of the rectangular stage member acts as a strength member and a support member, so joists and floor beams do not need to be used. In addition, by butting the peripheral frame corners of the framework of the metal frame, which are the corners of the rectangular stage member, no gaps are created at the corners of the rectangular stage member.

In addition, the support flange of the jack hardware is bolted to the underside of the perimeter of the metal frame of the rectangular stage member, so the fixing part does not protrude upwards and the top surface is flat with no protrusions.

The gist of the present invention described in claim 2 is that a protrusion is provided on the support flange of the jack hardware to engage with the inside corner of the peripheral frame of the metal frame of the rectangular stage member to prevent the rectangular stage member from shifting.

According to the present invention described in claim 2, the protrusion is, for example, a pin, and the support flange of the jack hardware serves to align the lower side of the peripheral frame of the metal frame of the rectangular stage member until it is bolted.

The gist of the present invention described in claim 3 is that a socket metal fitting is installed on the lower end of the post on the support flange of the jack metal fitting, and the post that engages with this socket metal fitting is used as a handrail post.

According to the present invention described in claim 3, handrails can be provided around the stage by erecting handrail posts on socket hardware that is erected on the support flange of the jack hardware.

As described above, when the temporary stage of the present invention uses scaffolding supports of a wedge-fastening type scaffold as the supports, it can be assembled without using joist jacks, joists or floor joists, and the top surface of the stage components can be made flat with no protruding plates, bolts or the like, so there is no risk of tripping and the movement of carts is not hindered.

FIG. 1 is a side view showing one embodiment of the temporary stage of the present invention. 1 is a plan view showing an embodiment of a temporary stage of the present invention. FIG. FIG. 2 is a side view of a joint portion of the temporary stage of the present invention. FIG. 2 is a plan view of a joint portion of the temporary stage of the present invention. FIG. 13 is a side view of a joint portion of a corner of the temporary stage of the present invention. FIG. 13 is a plan view of a joint portion of a corner of the temporary stage of the present invention. FIG. 2 is a front view of a rectangular stage member of the temporary stage of the present invention. FIG. 2 is a plan view of a rectangular stage member of the temporary stage of the present invention. FIG. 2 is a side view of a rectangular stage member of the temporary stage of the present invention. FIG. 13 is a side view of the joint for erecting handrail posts on the temporary stage of the present invention. FIG. 13 is a plan view of the joints for erecting handrail posts on the temporary stage of the present invention. FIG. 2 is a side view of a jack hardware for erecting handrail supports for a temporary stage of the present invention. FIG. 2 is a plan view of a jack hardware for erecting handrail supports for a temporary stage of the present invention. FIG. 2 is a plan view showing an example of a framework of a metal frame that constitutes a rectangular stage member of the temporary stage of the present invention. This is a cross-sectional view of line AA in Figure 14. This is a cross-sectional view of line BB in Figure 14. FIG. FIG. FIG. FIG. 13 is a perspective view showing another conventional example. This is a perspective view of a joint showing an idea for a temporary stage that does not require joists or floor joists. This is a plan view showing a temporary stage design that does not require joists or floor beams. This is a side view showing a proposed temporary stage that does not require joists or floor beams.

The present invention will be described in detail below with reference to the drawings. Fig. 1 is a side view of an embodiment of the temporary stage of the present invention, and Fig. 2 is a plan view of the same, which shows a temporary assembly stage using scaffolding supports of a wedge fastening type scaffolding as supports 1, and supports 1 are provided with flanges 1a with fastening insertion holes formed therein at predetermined intervals in the vertical direction as described above.

A handrail/bracing 2 called a leading handrail is stretched across two columns 1 set up at intervals in the left-right direction in each row, and is secured in place with a wedge-shaped insert metal fitting or hook, etc.

The present invention consists of the support pillar 1, a jack hardware 19 with a support flange 18 formed at the upper end, and a rectangular stage member 12 with a metal plate 13 attached.

Figure 14 shows an example of this metal frame 20, and as shown in Figures 15 and 16, square pipes are used as the frame material, and vertical and horizontal bars are arranged inside the rectangular peripheral frame 20a to form a lattice structure. In addition to square pipes, channel materials and I-beams can also be used for this frame material.

The support flanges 18 of the jack hardware 19 and the triangular plate 20b for fixing the rectangular stage member 12 are attached to the corners (four corners) of the lower side of the rectangular peripheral frame 20a. The triangular plate 20b has holes for inserting bolts and holes for inserting positioning pins.

A handle-retaining bracket 20c is provided in the center of the horizontal frame that constitutes the rectangular peripheral frame 20a. This handle-retaining bracket 20c is made of angle material, with one side serving as a horizontal flange with a handle through hole, and the other side attached to the side of the rectangular peripheral frame 20a by welding.

The rectangular stage member 12 has the strength to support a load by itself, and comes in several sizes, including a rectangular shape (approximately 900 x 1200) as shown in Figure 8, as well as square shapes (approximately 900 x 900), rectangular shapes (approximately 600 x 1200), and rectangular shapes (approximately 600 x 900) (not shown), and a checkered steel plate is used for the rectangular metal plate 13.

The rectangular metal plate 13 is attached to the metal frame 20 by welding, and is approximately the same size as the metal frame 20.

The rectangular stage member 12 is provided with a U-shaped round bar handle 23 via the handle-retaining metal fitting 20c, and can be pulled out by inserting it into the insertion hole of the handle-retaining metal fitting 20c. Two handles 23 are provided symmetrically. These handles 23 are used to transport and place the rectangular stage member 12.

The present invention involves placing the rectangular stage member 12 on the support flange 18 of the jack hardware 19 with the corners of the rectangular stage member 12 closely packed together, and bolting the underside of the peripheral frame 20a of the metal frame 20 of the rectangular stage member 12 to the support flange 18.

As shown in Figures 5 and 6, the jack hardware 19 is inserted into the end of the scaffolding support 1 and is equipped with a nut collar 19a with a handle on the screw rod body of a rod jack, and a horizontal square plate bearing flange 18 is provided on top.

The support flange 18 has a bolt insertion hole 22 and a positioning pin 21 protruding from it.

The size of the support flange 18 is such that the corners of the rectangular stage members 12 can be placed on one quarter of it, and one support flange 18 can accommodate the corners of four rectangular stage members 12 in a closely packed manner.

The bolt insertion holes 22 and positioning pins 21 are formed in each quarter of the support flange 18.

The temporary stage of the present invention can be equipped with handrails around the perimeter, and uses a jack fitting 19 for installing handrail posts, as shown in Figures 12 and 13.

The jack hardware 19 for installing handrail posts has a socket hardware 24 that is installed at one corner of the support flange 18 and is attached to the lower end of the post. The socket hardware 24 is composed of a support piece 24a that stands on the support flange 18 and a sleeve tube 24b that is welded to this support piece 24a. The sleeve tube 24b is a socket hardware that is attached to the lower end of the handrail support post 1'.

A bolt insertion hole 27 is provided at the bottom of the sleeve tube 24b and the handrail support 1' that is inserted into it.

In this way, the temporary stage of the present invention is constructed by attaching the jack hardware 19 to the upper ends of the pillars 1 that are erected at intervals, and placing and lining up the rectangular stage members 12 on the support flanges 18.

As shown in Figure 2, in the inner part of the temporary stage, the rectangular stage members 12 are placed closely together by butting the corners of the peripheral frame 20a of the metal frame 20 of the rectangular stage member 12 against the support flange 18 of the jack hardware 19, and on the outer periphery, one or two corners of the rectangular stage members 12 are placed on the support flange 18 of the jack hardware 19 for installing the handrail posts.

The positioning pin 21 on the support flange 18 engages with the triangular plate 20b at the corner of the lower side of the peripheral frame 20a of the rectangular stage member 12 to prevent slippage.

The lower triangular plate 20b of the rectangular stage member 12 was bolted to the support flange 18 using bolts and nuts 25.

The bolts of the bolts and nuts 25 can be inserted from below through the bolt insertion holes 22 of the support flange 18 and the bolt insertion holes 2 of the triangular plate 20b and secured with nuts, so that they do not protrude above the rectangular stage member 12.

The rectangular stage members 12 laid out in this way are supported by the support flanges 18 of the jack hardware 19 of the support pillars 1 to form a temporary stage, but on the outer periphery of the temporary stage, as shown in Figures 10 and 11, the lower end of the support pillar 1' for the handrail is inserted into the sleeve tube 24b using the socket hardware 24 of the jack hardware 19 for installing the handrail pillars, and the bolt is inserted through the bolt insertion hole 27 to secure it in place.

The handrail support pillar 1' is a next-generation scaffolding support pillar, and the handrail is assembled to it to complete the structure.

1...Support 1a...Flange 1'...Handrail support 2...Handrail/bracing combination member 3...Side jack 4...Side support hardware 5...Side joist 6...Joist 7...Scaffolding board 7a...Hook 8...Support flange 9...Jack hardware 10...Nut 11...Angle 12...Rectangular stage member 13...Rectangular metal plate 14...Frame material 15...Oval hole 16...Press plate 16a...Oval hole 17...Fixing bolt 18...Support flange 19 Jack hardware 19a...Nut collar with handle 20...Metal frame 20a...Surrounding frame 20b...Triangular plate 20c...Receiving hardware for handle engagement 21...Positioning pin 22...Bolt insertion hole 23...Handle 24...Socket hardware 24a...Support piece 24b...Sheath tube 25...Bolt/nut 27...Bolt insertion hole

Claims (3)

This is a temporary assembly stage that uses next-generation scaffolding columns, which are wedge-tightened scaffolding columns, as stage columns, and is characterized in that it is made up of a jack metal fitting with a support flange formed on the upper end and a rectangular stage member in the form of a metal plate attached to the framework of a metal frame, and the jack metal fitting is attached to the upper end of the column, the corners of the rectangular stage member are placed on the support flange of the jack metal fitting so that they are closely packed, and the underside of the perimeter of the metal frame framework of the rectangular stage member is bolted to the support flange. The temporary stage of claim 1, in which a protrusion is provided on the support flange of the jack hardware to engage with the inside corner of the peripheral frame of the metal frame of the rectangular stage member to prevent the rectangular stage member from shifting. A temporary stage as described in claims 1 and 2, in which a socket metal fitting at the lower end of the support is erected on the support flange of the jack metal fitting, and the support that engages with this socket metal fitting is a handrail support.

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