Platform structure and support columns
The gantry structure with intersecting cross members and adaptable support columns addresses the limitation of fixed directions in existing gantries, enabling flexible and stable work plate arrangements.
Patent Information
- Application Number
- JP2022061748
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-04-01
- Publication Date
- 2025-10-15
- Estimated Expiration
- 2042-04-01
AI Technical Summary
Existing gantry structures limit the extension and arrangement directions of work plates to specific orientations, lacking versatility due to the fixed spacing and alignment requirements of cross members.
A gantry structure with intersecting first and second cross members, supported by a base plate with protrusions, allowing flexible placement and arrangement of work plates in any direction, and a support column design that accommodates different cross member widths.
Enables flexible directionality of work plate extensions and arrangements, facilitating stable and versatile walkways at construction sites without requiring precise alignment of cross members.
Smart Images
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Abstract
Description
[Technical Field]
[0001] The present invention relates to a gantry structure used as a scaffold for construction work, a walkway for workers, etc., and to a support column used in this gantry structure. [Background technology]
[0002] Conventionally, a bracing bracket for a gantry has been known which is composed of a cylindrical mounting portion that is fitted onto the outside of a support pillar, and a receiving portion that is fixed to the upper end of the mounting portion and has a bottom portion with a rectangular flat surface as its upper surface and side portions that stand up from a pair of opposing edges of the bottom, and which is characterized in that the edge portion of the bottom of the receiving portion where the side portions are not provided is curved from above downward toward the mounting portion to form a curved edge portion (see, for example, Patent Document 1). [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Patent No. 654748 Summary of the Invention [Problem to be solved by the invention]
[0004] The brace disclosed in Patent Document 1 has a U-shaped cross section with a bottom on which a cross member made of a joist or the like is placed and a pair of side members erected on both left and right sides, and the spacing between the side members is formed to a value corresponding to the width dimension of the cross member, so that it can stably support the cross member while restricting its lateral movement. However, when this brace is used, the extension direction of the cross member is limited to one direction, and the extension direction and arrangement direction of the work plate placed on the cross member are also limited to specific directions, resulting in a lack of versatility.
[0005] In other words, the gantry equipped with the above-mentioned main underpinning brackets is configured so that the left and right ends of a work plate, such as a scaffolding board for workers, are placed on a cross member, such as a pair of left and right joists extending in the same direction at a fixed distance, and therefore the extension direction of the work plate is limited to a direction perpendicular to the extension direction of the cross member. As a result, when arranging multiple work plates side by side on the cross member, the arrangement direction is limited to the extension direction of the cross member, and there is a problem in that the extension direction and arrangement direction of the work plate cannot be set to any direction.
[0006] The object of the present invention is to provide a gantry structure having excellent versatility, in which the extension direction and arrangement direction of a work plate placed on a cross member can be set in any direction, and a support pillar used in this gantry structure. [Means for solving the problem]
[0007] (1) The present invention provides a gantry structure comprising a plurality of pillars erected at a construction site at intervals in the vertical and horizontal directions, a first cross member extending in a direction connecting the upper ends of adjacent pillars in the horizontal direction, and a second cross member extending in a direction connecting the upper ends of adjacent pillars in the vertical direction, wherein the first cross member and the second cross member are arranged to intersect at the upper ends of the pillars, and a support is provided at the upper end of the pillar, the support has a base plate on which at least one of the first cross member and the second cross member is placed, and four protrusions rising upward from the side edges of the bottom plate, the installation spacing of a pair of the protrusions provided on opposing first side edges of the bottom plate is formed to a value corresponding to the width dimension of the first cross member, and the installation spacing of a pair of the protrusions provided on a second side edge perpendicular to the first side edge is formed to a value corresponding to the width dimension of the second cross member.
[0008] (2) The platform structure described in (1), wherein the first cross member and the second cross member are formed to have the same width dimension, and the bottom plate is formed in a square shape.
[0009] (3) A platform structure described in (1) or (2), wherein the protrusion has an L-shaped cross-sectional shape consisting of an upright piece provided at the end of the first side edge portion and an upright piece provided at the end of the second side edge portion.
[0010] (4) A platform structure described in any of (1) to (3), in which a first notch is formed in at least one of the upper and lower edges of the first cross member, and a second notch is formed in at least one of the upper and lower edges of the second cross member, and the first notch and the second notch are engaged with each other on the upper surface of the bottom plate.
[0011] (5) A platform structure described in any of (1) to (4), wherein the first cross member and the second cross member are formed with the same vertical dimensions, and the depth of the first notch and the second notch is half the vertical dimensions of the first cross member and the second cross member.
[0012] (6) The present invention also provides a support column used in a platform structure having a first horizontal member extending horizontally at a construction site and a second horizontal member extending vertically at a construction site, the support column having a support device at the upper end thereof, the support device having a bottom plate on which at least one of the first horizontal member and the second horizontal member is placed, and four protrusions rising upward from the side edges of the bottom plate, the installation spacing of a pair of the protrusions provided on opposing first side edges of the bottom plate being formed to a value corresponding to the width dimension of the first horizontal member, and the installation spacing of a pair of the protrusions provided on a second side edge perpendicular to the first side edge being formed to a value corresponding to the width dimension of the second horizontal member. [Effects of the Invention]
[0013] According to the gantry structure described in (1), for example, by placing both ends of a work board on a pair of first horizontal members extending horizontally at the construction site and arranging multiple work boards along the extending direction of the first horizontal members, it is possible to form a walkway for workers extending horizontally at the construction site. Also, by placing both ends of a work board on a pair of second horizontal members extending vertically at the construction site and arranging multiple work boards along the extending direction of the second horizontal members, it is possible to form a walkway for workers extending vertically at the construction site, and there is an advantage that the extending direction and arranging direction of the work boards placed on the first and second horizontal members can be set to any direction.
[0014] According to the platform structure described in (2), when the intersection between the first cross member and the second cross member is placed on the bottom plate and supported by the support, there is no need to align the orientation of the support with the extension direction of the first cross member and the second cross member, and the work of supporting the first cross member and the second cross member on the support can be easily performed.
[0015] The gantry structure described in (3) has the advantage that a lightweight, highly rigid protrusion can be easily formed by bending a single plate material.
[0016] According to the platform structure described in (4), for example, by engaging a first notch formed on the lower edge of the first cross member with a second notch formed on the upper edge of the second cross member on the upper surface of the bottom plate, the first cross member and the second cross member can be crossed and assembled in a lattice shape, and by supporting this intersection with a receiving device, both the first cross member and the second cross member can be supported simultaneously and stably.
[0017] According to the gantry structure described in (5), for example, by engaging the first notch of the first cross member with the second notch of the second cross member, the first cross member and the second cross member can be assembled in a lattice shape with the upper and lower surfaces of the first cross member flush with the upper and lower surfaces of the second cross member, respectively. Therefore, when the intersections of the first and second cross members are placed on a base plate for support, a stable support state can be achieved by abutting both the lower surfaces of the first and second cross members against the upper surface of the base plate. Furthermore, a work platform can be placed across both the first and second cross members.
[0018] According to the support described in (6), for example, by placing both ends of a work board on a pair of first horizontal members extending horizontally at the construction site and arranging multiple work boards along the extending direction of the first horizontal members, it is possible to form a walkway for workers extending horizontally at the construction site. Also, by placing both ends of a work board on a pair of second horizontal members extending vertically at the construction site and arranging multiple work boards along the extending direction of the second horizontal members, it is possible to form a walkway for workers extending vertically at the construction site, and there is an advantage that the extending direction and arranging direction of the work boards placed on the first and second horizontal members can be set to any direction. [Brief explanation of the drawings]
[0019] [Figure 1] 1 is a perspective view showing an embodiment of a gantry structure according to the present invention; [Figure 2] FIG. 2 is a perspective view showing a specific configuration of a receiving tool. [Figure 3] FIG. 10 is a plan view showing the specific configuration of the support and the column. [Figure 4] FIG. 2 is a perspective view showing the state before the first cross member and the second cross member are assembled. [Figure 5] 10 is a perspective view showing the state in which the first cross member and the second cross member are assembled in a lattice shape. FIG. [Figure 6] A cross-sectional view showing the state in which the work plate is placed on the first cross member and the second cross member. [Figure 7] A plan view showing the state in which work plates are arranged along the extension direction of the first cross member. [Figure 8] A plan view showing the state in which work plates are arranged along the extension direction of the second cross member. DETAILED DESCRIPTION OF THE INVENTION
[0020] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals are used to denote the same components, and the description thereof will be omitted.
[0021] 1 is a conceptual diagram illustrating the configuration of a gantry structure 1 according to an embodiment of the present invention. The gantry structure 1 includes a plurality of support columns 2, each made of a round pipe or the like, erected at a construction site at intervals in the vertical and horizontal directions, a first cross member 3 extending in a direction connecting the upper ends of adjacent support columns 2 in the horizontal direction (X direction in FIG. 1 ) of the construction site, and a second cross member 4 extending in a direction connecting the upper ends of adjacent support columns 2 in the vertical direction (Y direction in FIG. 1 ) of the construction site. The first cross member 3 and the second cross member 4 are arranged to intersect at the upper ends of the support columns 2, and a plurality of work plates 9 are placed on the first cross member 3 and the second cross member 4.
[0022] As shown in Figure 2, the upper end of the support column 2 is provided with a bottom plate 6 on which the first cross member 3 and the second cross member 4 are placed, and a receiver 5 having four protrusions 7 rising upward from the side edges of the bottom plate 6, specifically from the corners of the bottom plate 6. The upper end of a screw shaft 51 having a male thread formed on the circumferential surface is joined to the underside of the bottom plate 6, and a nut member 53 having an operating handle 52 is screwed onto the screw shaft 51. The lower end of the screw shaft 51 is inserted into a round pipe material constituting the support column 2, thereby disposing the receiver 5 at the upper end of the support column 2, and the installation height of the receiver 5 can be adjusted by rotating the operating handle 52 to change the screw-engagement position of the nut member 53 relative to the screw shaft 51.
[0023] As shown in FIG. 3 , the installation interval A between a pair of protrusions 7 provided on opposing first side edges 61 of the bottom plate 6 is set to a value corresponding to the width dimension of the first cross member 3. Furthermore, the installation interval B between a pair of protrusions 7 provided on a second side edge 62 perpendicular to the first side edge 61 of the bottom plate 6 is set to a value corresponding to the width dimension of the second cross member 4. Specifically, the protrusions 7 of the receiving device 5 have an L-shaped cross section consisting of an upright piece 71 provided at the end of the first side edge 61 of the bottom plate 6 and an upright piece 72 provided at the end of the second side edge 62, and the installation interval A between the two upright pieces 71 provided on the first side edge 61 is set to a value equal to or slightly larger than the width dimension of the first cross member 3. In addition, the installation distance B between the two upright pieces 72 provided on the second side edge portion 62 of the bottom plate 6 is set to a value equal to the width dimension of the second cross member 4 or slightly larger than the width dimension of the second cross member 4.
[0024] The first cross member 3 and the second cross member 4 are made of long beams or the like having a rectangular cross-section with the vertical dimension greater than the width dimension (see FIG. 2). In this embodiment, the vertical dimension of the first cross member 3 is equal to the vertical dimension of the second cross member 4, and the width dimension of the first cross member 3 is equal to the width dimension of the second cross member 4. In addition, in the plan view shown in FIG. 3, the bottom plate 6 is formed in a square shape, and the installation interval A of a pair of protrusions 7 provided on a first side edge 61 of the bottom plate 6 is equal to the installation interval B of a pair of protrusions 7 provided on a second side edge 62 of the bottom plate 6.
[0025] As shown in Figure 4, a first notch 31 with an open bottom surface is formed in the lower edge portion of the first cross member 3, and a second notch 32 with an open top surface is formed in the upper edge portion of the first cross member 3. The first notch 31 and the second notch 32 each have a notch width that is approximately the same as the width dimension of the second cross member 4, and a notch depth that is half the vertical dimension of the first cross member 3. Furthermore, a first notch 41 with an open bottom surface is formed in the lower edge portion of the second cross member 4, and a second notch 42 with an open top surface is formed in the upper edge portion of the second cross member 4. The first notch 41 and the second notch 42 each have a notch width that is approximately the same as the width dimension of the first cross member 3, and a notch depth that is half the vertical dimension of the second cross member 4.
[0026] The first notch 31 of the first cross member 3 and the second notch 42 of the second cross member 4 are engaged with each other, and the second notch 32 of the first cross member 3 and the first notch 41 of the second cross member 4 are engaged with each other. As a result, as shown in Figures 5 and 6, a lattice-like structure is obtained in which the upper surfaces of the first cross member 3 and the second cross member 4 are flush with each other and the lower surfaces of the first cross member 3 and the second cross member 4 are flush with each other.
[0027] To form the gantry structure 1 of the present invention, as shown in Figure 4 etc., multiple support columns 2, each with a base metal fitting 21 at its lower end and a receiving device 5 at its upper end, are erected at intervals in a vertical direction that is one direction of the construction site and in a horizontal direction perpendicular to the vertical direction, and adjacent support columns 2 are connected as necessary with unillustrated diagonal braces. Next, as shown in Figures 5 and 6, the intersection of the first horizontal member 3 and the second horizontal member 4 is placed on the bottom plate 6 of the receiving device 5, and both the first horizontal member 3 and the second horizontal member 4 are supported by the receiving device 5 with the lateral movement of each of the first horizontal member 3 and the second horizontal member 4 restrained by the four protrusions 7.
[0028] At the construction site, both ends of the work board 9 are placed on a pair of first horizontal members 3 extending in the horizontal direction (X direction in FIG. 7 ), and multiple work boards 9 are arranged along the extension direction of the first horizontal members 3, thereby forming a walkway for workers extending in the X direction in FIG. 7 . Alternatively, both ends of the work board 9 can be placed on a pair of second horizontal members 4 extending in the vertical direction (Y direction in FIG. 8 ) at the construction site, and multiple work boards 9 are arranged along the extension direction of the second horizontal members 4, thereby forming a walkway for workers extending in the Y direction in FIG. 8 . This has the advantage that the extension direction and arrangement direction of the work boards 9 placed on the first and second horizontal members 3, 4 can be set in any direction. Although not shown, it is also possible to arrange multiple work boards so that they are diagonally stretched across the first horizontal member 3 and the second horizontal member 4.
[0029] In the above-described embodiment in which the width dimensions of the first cross member 3 and the second cross member 4 are formed to be the same value, as shown in Fig. 3, the bottom plate 6 of the support 5 is formed in a square shape, and the installation interval A of the pair of protrusions 7 provided on the opposing first side edge 61 of the bottom plate 6 and the installation interval B of the pair of protrusions 7 provided on the second side edge 62 perpendicular to the first side edge 61 are formed to be values corresponding to the width dimensions of the first cross member 3 and the second cross member 4, that is, the same dimension. With this configuration, when the intersection of the first cross member 3 and the second cross member 4 is placed on the bottom plate 6 of the support 5 to support it, it is not necessary to align the orientation of the support 5 with the extension direction of the first cross member 3 and the second cross member 4, and the work of supporting the first cross member 3 and the second cross member 4 on the support 5 can be easily performed.
[0030] If the width dimensions of the first cross member 3 and the second cross member 4 are different, the installation interval A of the pair of protrusions 7 provided on the first side edge 61 of the bottom plate 6 and the installation interval B of the pair of protrusions 7 provided on the second side edge 62 perpendicular to the first side edge 61 must be different accordingly. In this case, by setting the orientation of the support 5 in accordance with the extension direction of the first cross member 3 and the second cross member 4 so that the pair of protrusions 7 provided on the first side edge 61 of the bottom plate 6 restrains the side edge portion of the first cross member 3 and the pair of protrusions 7 provided on the second side edge 62 of the bottom plate 6 restrains the side edge portion of the second cross member 4, it becomes possible to support both the first cross member 3 and the second cross member 4 simultaneously by the support 5.
[0031] Instead of the above-described embodiment in which the receiving device 5 is provided with a protrusion 7 having an L-shaped cross section, which includes an upstanding piece 71 provided at the end of the first side edge 61 of the bottom plate 6 and an upstanding piece 72 provided at the end of the second side edge 62 of the bottom plate 6, a configuration in which a protrusion made of a circular or rectangular rod-shaped body or a single plate-shaped body protrudes upward from a corner of the bottom plate 6 is also possible. However, forming a protrusion using a rod-shaped body has the disadvantage of requiring a cumbersome process of fixing the lower end of the rod-shaped body to the corner of the bottom plate 6 by, for example, welding. On the other hand, forming a protrusion using a single plate-shaped body has the disadvantage of requiring a large plate thickness to achieve sufficient rigidity. In contrast, the configuration in which the protrusion 7 having an L-shaped cross section is provided at the corner of the bottom plate 6, as shown in the above-described embodiment, has the advantage of easily forming a lightweight and highly rigid protrusion 7 by, for example, bending a single plate material.
[0032] 4, in the above-described embodiment, the first cross member 3 is formed with a first notch 31 that is open on the top surface and a second notch 32 that is open on the bottom surface, and the second cross member 4 is formed with a first notch 41 that is open on the top surface and a second notch 42 that is open on the bottom surface, and the first cross member 3 and the second cross member 4 are assembled in a lattice pattern by alternately crossing each other, thereby obtaining a strong assembled state. Moreover, on the bottom plate 6 of the support 5, the first notch 31 of the first cross member 3 and the second notch 42 of the second cross member 4 are engaged with each other, and the first notch 41 of the second cross member 4 and the second notch 32 of the first cross member 3 are engaged with each other, and the crossing portion of the first cross member 3 and the second cross member 4 is supported by the support 5, which has the advantage of being able to simultaneously and stably support both the first cross member 3 and the second cross member 4.
[0033] In order to easily assemble the first cross member 3 and the second cross member 4 in a staggered crossing state as described above, it is preferable to form the width dimensions of the first notch 31 and the second notch 32 formed in the first cross member 3 larger than the width dimension of the second cross member 4, and to form the width dimensions of the first notch 41 and the second notch 42 formed in the second cross member 4 larger than the width dimension of the first cross member 3. However, even if the width dimensions of the first notch 31 and the second notch 32 formed in the first cross member 3 are made exactly the same as the width dimension of the second cross member 4, and the width dimensions of the first notch 41 and the second notch 42 formed in the second cross member 4 are made exactly the same as the width dimension of the first cross member 3, it is possible to assemble the first cross member 3 and the second cross member 4 in a staggered crossing state by elastically deforming the side edges of each notch 31, 32, 41, 42.
[0034] In place of the above-described embodiment in which the first and second cross members 3 and 4 are assembled in a lattice pattern by alternately crossing them, it is also possible to form, for example, only first notches 31 with an open bottom at regular intervals on the lower side of the first cross member 3 and only second notches 42 with an open top at regular intervals on the upper side of the second cross member 4, or conversely, to form only second notches 32 with an open top at regular intervals on the upper side of the first cross member 3 and only first notches 41 with an open top at regular intervals on the upper side of the second cross member 4. This configuration makes it possible to easily assemble the first and second cross members 3 and 4 in a lattice pattern without having to take measures such as making the width of each notch larger than the width of the cross members, as described above.
[0035] Furthermore, it is not necessarily required that only the intersection between the first cross member 3 and the second cross member 4 be supported by the support device 5; for example, it is also possible that only the first cross member 3 is supported by the support device 5 between a pair of adjacent second cross members 4, or that only the second cross member 4 is supported by the support device 5 between a pair of adjacent first cross members 3.
[0036] In this embodiment, the first cross member 3 and the second cross member 4 are formed to have the same vertical dimension, and the depths of the first notch 31 and the second notch 32 formed in the first cross member 3 and the depths of the first notch 41 and the second notch 42 formed in the second cross member 4 are each formed to be half the vertical dimension of the first cross member 3 and the second cross member 4. According to this configuration, by engaging the first notch 31 and the second notch 32 of the first cross member 3 with the second notch 42 and the first notch 41 of the second cross member 4, the first cross member 3 and the second cross member 4 can be assembled in a lattice shape with the upper and lower surfaces of the first cross member 3 and the upper and lower surfaces of the second cross member 4 flush with each other. Therefore, when the intersection of the first cross member 3 and the second cross member 4 is placed on the bottom plate 6 of the receiving device 5 for support, a stable supporting state can be obtained by abutting both the underside of the first cross member 3 and the underside of the second cross member 4 against the upper surface of the bottom plate 6. In addition, there is an advantage that the work board 9 can be placed across both the first cross member 3 and the second cross member 4. [Explanation of symbols]
[0037] 1 Gantry structure 2 pillars 3 First horizontal member 4 Second horizontal member 5. Receptacle 6 Bottom plate 7. Protrusion 9 Work Plate 31 First notch of first cross member 32 Second notch in first cross member 41 First notch of second cross member 42 Second notch of second cross member 61 First side part 62 Second side part 71,72 Standing piece
Claims
1. A plurality of support columns erected at a construction site at intervals in the vertical and horizontal directions; a first horizontal member extending in a direction connecting upper ends of the columns adjacent to each other in the horizontal direction; a second horizontal member extending in a direction connecting the upper ends of the columns adjacent to each other in the vertical direction; In a platform structure in which the first cross member and the second cross member are arranged to intersect at the upper end of the support, A receiver is provided at the upper end of the support pillar, The receiving device has a bottom plate on which at least one of the first cross member and the second cross member is placed, and four protrusions standing upward from side edges of the bottom plate, The installation interval of the pair of protrusions provided on the opposing first side edges of the bottom plate is formed to a value corresponding to the width dimension of the first cross member, A platform structure in which the installation spacing of a pair of protrusions provided on a second side edge portion perpendicular to the first side edge portion is formed to a value corresponding to the width dimension of the second cross member.
2. The first cross member and the second cross member are formed to have the same width dimension, The gantry structure of claim 1 , wherein the base plate is formed in a square shape.
3. The platform structure of claim 1, wherein the protrusion has an L-shaped cross-sectional shape consisting of an upright piece provided at the end of the first side edge portion and an upright piece provided at the end of the second side edge portion.
4. A first notch is formed in at least one of the upper side portion or the lower side portion of the first cross member, A second notch is formed in at least one of the upper side portion or the lower side portion of the second cross member, The gantry structure according to claim 1 , wherein the first notch and the second notch are engaged with each other on the upper surface of the bottom plate.
5. The first cross member and the second cross member are formed to have the same vertical dimensions, The gantry structure according to claim 4 , wherein the depth of the first notch and the second notch is half the vertical dimension of the first cross member and the second cross member.
6. A support used in a platform structure having a first horizontal member extending in the horizontal direction of a construction site and a second horizontal member extending in the vertical direction of the construction site, A receiver is provided at the upper end of the support pillar, The receiving device has a bottom plate on which at least one of the first cross member and the second cross member is placed, and four protrusions standing upward from side edges of the bottom plate, The installation interval of the pair of protrusions provided on the opposing first side edges of the bottom plate is formed to a value corresponding to the width dimension of the first cross member, A support in which the installation spacing of a pair of protrusions provided on a second side edge portion perpendicular to the first side edge portion is formed to a value corresponding to the width dimension of the second cross member.
Citation Information
Patent Citations
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Temporary support by use of stacking type temporary support frame
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