JP6210608B1 - Support - Google Patents

Abstract

A support 1 for supporting a structure from below is attached to a plurality of support columns 10 extending in the vertical direction and spaced apart in the horizontal direction, and detachably attached to an intermediate portion in the vertical direction of the support columns 10. The intermediate | middle part connector 20 which connects intermediate parts of this, and the edge part connection tools 30 and 40 which connect the one end parts of the up-down direction of the support | pillar 10 are provided.

Description

  The present invention relates to a support used when supporting a structure at various construction sites, construction sites, and the like, and particularly relates to a technical field of a structure in which a plurality of pipe members are connected to construct a support.

  For example, at various construction sites, construction sites, and the like, various operations can be performed with the structure supported by a support. Commonly used as support works are, for example, what are called square pillars, which are integrated by welding connecting members to four pipes, and those made of thick steel pipes. A heavy structure can be supported.

  Since the four pillars are connected by welding and cannot be disassembled, the square pillar has a heavy weight per pillar. In addition, steel pipes are generally thick and thick to increase the allowable load, so that the weight per piece increases. Therefore, in the case of a conventional support made of a square support or a steel pipe, the worker cannot be transported manually on site, and can only be handled by a crane or the like. For this reason, the conventional square support | pillar and the steel pipe could not be carried in to the underground pit where installation of a crane etc. is difficult, and the sealed room like the inside of a pipe and a tank.

  In addition, as disclosed in, for example, Patent Documents 1 to 3, it is known that a permissible load per support work is increased by connecting a plurality of support columns with a detachable connector. The support column of Patent Document 1 is provided with a support fitting for connecting a horizontal member or a diagonal member. By using this support fitting, it is possible to reinforce the support with a horizontal member or a diagonal member without interfering with the horizontal connecting member or the like. Further, in Patent Document 2, a horizontal member connecting rod is provided on a column that is erected at a predetermined interval in the horizontal direction, a hole is formed in the horizontal member connecting rod, and a horizontal member with a wedge mechanism is connected to the horizontal member. A support work is constructed by connecting a plurality of struts by engaging with a hole in the cage. Furthermore, in patent document 3, the support metal which has a wedge hole is provided in the support | pillar, and a support | pillar is constructed by connecting a plurality of support | pillars by engaging a horizontal material with a wedge hole.

JP-A-8-270214 JP 2008-57253 A JP 2014-105572 A

  According to the support works of Patent Documents 1 to 3, since a plurality of support columns are connected by a detachable connector, the support work can be easily disassembled, and the support columns are transported in units of one. Is possible. In general, in the case of the columns as disclosed in Patent Documents 1 to 3, since it is heavy enough to be transported manually by one, an operator must manually transport it to an underground pit or a sealed room. This improves convenience. Moreover, there is also an advantage that the allowable load of the support work can be easily set for each site by changing the number of the support columns to be combined. Furthermore, it becomes possible to freely arrange the support columns according to the shape of the structure to be supported. That is, there are various merits by constructing a support work by connecting a plurality of support columns with a detachable connector.

  However, although the merit by the support construction which connects and constructs | assembles a some support | pillar with the detachable coupling tool as mentioned above is great, there also exists the following problems. That is, the upper end portion of the support is a portion where the load of the structure acts directly, and in order to support the structure in a stable state, the upper ends of the plurality of support columns constituting the support are relative to each other. It is necessary to keep the proper positional relationship appropriate. Moreover, the lower end part of a support | pillar is a part supported by a jack etc., It is necessary to keep appropriately the relative positional relationship of this lower end part in order to support a structure in the stable state. However, the couplers of Patent Documents 1 to 3 are for connecting the middle portions in the length direction of the columns, and are configured so that the upper ends and the lower ends of the columns can be connected. No.

  The present invention has been made in view of such a point, and the object of the present invention is to connect a plurality of support columns with a detachable connector to construct a support work in the vertical direction of the plurality of support columns. An object of the present invention is to support the structure in a stable state so that the relative positional relationship between the end portions can be appropriately maintained.

  In order to achieve the above object, in the support work for supporting the structure from below, a plurality of support pillars extending in the vertical direction and spaced apart in the horizontal direction can be attached to and detached from the intermediate part in the vertical direction of the support pillar. It was set as the structure provided with the intermediate | middle part connection tool attached and connecting the intermediate parts of this support | pillar, and the edge part connection tool which connects the one end parts of the up-down direction of the said support | pillar.

  According to this configuration, since the intermediate connector is detachable from the support column, the support work can be easily disassembled into a single support unit by removing the intermediate connector from the support column. it can. Since one column can be transported by human power, for example, an operator can manually load the column to an underground pit or a sealed room. In addition, by changing the number of support columns to be combined, it is possible to easily set the allowable load of support work for each site. Furthermore, it becomes possible to freely arrange the support columns according to the shape of the structure to be supported.

  Moreover, when constructing a supporting work, the intermediate portions in the vertical direction of the plurality of columns are connected by the intermediate connector, and one ends of the columns are connected by the end connector. By connecting one end portions of the plurality of support columns by the end connector, the relative positional relationship between the one end portions of the support columns is appropriately maintained. Therefore, it becomes possible to support the structure in a stable state.

  The end connector includes a substrate extending in the horizontal direction and a plurality of projecting cylindrical portions fixed to the substrate and projecting from the substrate in the vertical direction. It can comprise so that the said support | pillar may contact | abut.

  According to this configuration, the support comes into contact with the distal end portion of the protruding cylinder portion, so that the structure can be reliably supported by abutting the distal end portion of the protruding cylinder portion with the support column.

  Further, the support column is composed of a tube material having one end portion in the vertical direction opened, and the insertion tube portion inserted from the opening at the one end portion with respect to the support column is connected to the end connection tool from the projecting tube portion. It can be set as the structure provided so that it may protrude in the centerline direction of a protrusion cylinder part.

  According to this configuration, by inserting the insertion tube portion into the support column through the opening at one end portion of the support column, the protruding tube portion of the end connector and the support column are less likely to be relatively displaced in the radial direction. One end portions are securely connected by the end connector.

  The end connector may be provided with a reinforcing member that is fixed to the substrate and the outer surface of the protruding cylinder.

  According to this structure, since the board | substrate and the protrusion cylinder part are connected by the reinforcement member, the fall deformation | transformation etc. of a protrusion cylinder part are suppressed. This makes it possible to support the structure in a more stable state.

  Further, the reinforcing member can be configured to be fixed to the outer surfaces of the plurality of protruding cylindrical portions.

  According to this configuration, since the plurality of protruding cylindrical portions are connected by the reinforcing member, the relative positional relationship between the plurality of protruding cylindrical portions is appropriately maintained.

  According to the present invention, the intermediate portions of the support columns are connected to each other by the removable intermediate connector, so that the support can be easily disassembled into one support unit and can be transported by human power. Can be. Also, since the vertical ends of the columns are connected by the end connector, the relative positional relationship between the columns of the columns can be maintained appropriately, and the structure is supported in a stable state. it can.

  Moreover, the structure can be reliably supported by abutting the distal end portion of the projecting cylinder portion with the support column by bringing the support column into contact with the projecting direction distal end portion of the projecting tube portion of the end connector.

  Further, by inserting the insertion tube portion of the end connector into the support column through the opening at one end of the support column, the protruding tube portion of the end connector and the support column are less likely to be relatively displaced in the radial direction. One end portions of the two can be reliably connected by the end connector.

  In addition, by connecting the substrate of the end connector and the protruding cylinder portion with the reinforcing member, it is possible to suppress the falling deformation or the like of the protruding cylinder portion. As a result, the structure can be supported in a more stable state.

  Moreover, the relative positional relationship of a some protruding cylinder part can be kept appropriately by connecting a some protruding cylinder part with a reinforcement member.

  FIG. 1 is a side view of a support according to the first embodiment.

  FIG. 2 is a plan view showing the arrangement of each support column.

  FIG. 3 is an exploded view of the support work.

  FIG. 4 is a side view of the support column.

  5 is a cross-sectional view taken along line VV in FIG.

  FIG. 6 is a side view of the intermediate connector.

  FIG. 7 is a side view of the end connector.

  FIG. 8 is a plan view of the end connector.

  FIG. 9 is a view corresponding to FIG. 7 according to the first modification of the first embodiment.

  FIG. 10 is a view corresponding to FIG. 8 according to the first modification of the first embodiment.

  FIG. 11 is a view corresponding to FIG. 1 according to the second modification of the first embodiment.

  12 is a cross-sectional view taken along the line XX of FIG.

  FIG. 13 is a view corresponding to FIG. 12 in a state where a bendable cloth material is bent in the horizontal direction.

  FIG. 14 is an enlarged side view showing a state in which the columns are connected by a bendable cloth material.

  FIG. 15 is a view corresponding to FIG. 14 in a state where a bendable cloth material is bent in the vertical direction.

  FIG. 16 is a view corresponding to FIG. 1 according to the second embodiment.

  FIG. 17 is a view corresponding to FIG. 2 according to the second embodiment.

  FIG. 18 is a view corresponding to FIG. 3 according to the second embodiment.

  FIG. 19 is a view corresponding to FIG. 5 according to the second embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature, and is not intended to limit the present invention, its application, or its use.

(Embodiment 1)
FIG. 1 is a side view showing a state in which a structure 100 is supported by a support 1 according to Embodiment 1 of the present invention. The support work 1 is used, for example, when supporting various structures 100 at various construction sites or construction sites. As the structure 100, for example, a concrete form used for making a concrete floor or a beam can be mentioned, and the concrete form can be supported by the support 1 until the concrete is placed and then hardened. . The structure 100 may be a bridge, for example.

  In order to support one structure 100, a plurality of support works 1 are constructed, and these support works 1 are connected. First, each support construction 1 will be described. Each support 1 is constructed by connecting and integrating four struts 10 that extend in the vertical direction and are spaced apart in the horizontal direction. For example, as shown in a plan view in FIG. 2, one supporting work 1 having four support columns 10 can be used by being arranged in a double manner so as to draw a circle. In this case, the structure 100 has a shape close to a circle. Moreover, the support work 1 can also be used by arranging in a straight line and mutually connecting, and the support work 1 can also be used independently. The number and arrangement of the support works 1 can be arbitrarily set according to the shape, size, and weight of the structure 1.

  As shown also in FIG. 3, the supporting work 1 is detachably attached to the middle part in the vertical direction of adjacent supporting pillars 10 constituting the supporting work 1 in addition to the four supporting pillars 10. The intermediate part connecting tool 20 for connecting the intermediate parts of the two parts, the lower end connecting part 30 for connecting the lower end parts of all the struts 10 constituting the supporting work 1, and the supporting work 1 are constituted. The upper end connection tool 40 which connects the upper end parts of all the support | pillars 10 and the jack 50 are provided. The jack 50 may be omitted.

  The four struts 10 are all the same. In this embodiment, as shown in FIG. 2, they are arranged at substantially equal intervals so as to form a quadrangle in a plan view. The struts 10 may be arranged so as to form a polygon such as a pentagon or a hexagon, or the support 1 may be constructed by three struts 10 or two struts 10. The number of the support | pillar 10 for constructing can be set arbitrarily. Moreover, the adjacent support work 1 is connected by the cloth material 60 (it shows with a virtual line in FIG. 2).

  As shown in an enlarged view in FIG. 4, the column 10 includes a metal pipe 11 having a circular cross section and a connecting portion 12 made of a metal plate. The pipe material 11 can be comprised, for example with a steel pipe etc., is arrange | positioned so that it may extend in an up-down direction, and the length is set so that it may match the height of the support work 1 to construct | assemble. Both ends in the vertical direction of the tube material 11 are opened. A tubular lower small-diameter portion 13 having a smaller outer diameter than the intermediate portion in the vertical direction of the tubular material 11 is provided at the lower portion of the tubular material 11. By forming the lower small diameter portion 13, a lower step portion 14 is formed at the lower portion of the outer peripheral surface of the tube material 11. In addition, a tubular upper small diameter portion 15 having an outer diameter smaller than that of the intermediate portion in the vertical direction of the tube material 11 is provided on the upper portion of the tube material 11. By forming the upper small diameter portion 15, an upper step portion 16 is formed at the upper portion of the outer peripheral surface of the tube material 11. The lower small diameter portion 13 and the upper small diameter portion 15 have the same cross-sectional shape, the same length, the same outer diameter, and the same inner diameter. The length of the support | pillar 10 is not specifically limited, It can be set as the length according to the field. Moreover, it can also be used, connecting the some support | pillar 10 up and down so that attachment or detachment is possible.

  The connection part 12 is a part to which the intermediate part connector 20 is connected, and a plurality of connection parts 12 are provided in each of the upper part, the lower part, and the intermediate part in the vertical direction of the tube material 11. As shown in FIG. 5, the connecting portion 12 protrudes radially from the outer peripheral surface of the tube material 11 in four directions. That is, the four connecting portions 12 are arranged at the same height of the pipe material 11. An engagement hole 12 a is formed inside the connecting portion 12. The engagement hole 12a is opened both above and below the connecting portion 12. Moreover, the cross section of the engagement hole 12a in the horizontal direction has a shape close to a substantially rectangular shape.

  As shown in FIG. 6, the intermediate connector 20 has a bar 21 that extends in the horizontal direction and a wedge-shaped engagement protrusion 22 that protrudes downward from both ends of the bar 21. The engagement protrusion 22 is adapted to engage with the connecting portion 12 in a state where it is inserted into the engagement hole 12a of the support column 10 from above. Further, at both ends of the bar 21, protrusions 23 that protrude upward are provided. The dimension in the horizontal direction of the intermediate connector 20 is set to a length corresponding to the interval between the columns 10. The interval between adjacent struts 10 is set to be a predetermined interval according to the horizontal length of the bar 21 of the intermediate connector 20. The interval between the columns 10 can be set according to the weight of the structure 100. For example, the heavier the structure 100, the narrower the interval between the columns 10 is preferable. The interval between the columns 10 can be set to 150 mm to 250 mm, for example, and is set to 200 mm in this embodiment.

  As shown in FIG. 1 and FIG. 3, the jack 50 is for adjusting the height of the four support | pillars 10, and is a conventionally well-known structure. That is, the jack 50 includes a base 51, a screw shaft 52 extending upward from the base 51, and a movable portion 53 that is screwed onto the screw shaft 52. A base 51 is installed on the support member 200. The height of the movable portion 53 can be changed by rotating the movable portion 53 in a state where the movable portion 53 is screwed to the screw shaft 52. As shown in FIG. 3, the upper side of the screw shaft 52 protrudes upward from the center of the movable portion 53. Further, the upper surface of the movable portion 53 extends substantially horizontally, and the lower end connector 30 is placed and fixed as will be described later.

  As shown in FIGS. 7 and 8, the lower end connector 30 includes a substrate 31 extending in the horizontal direction, four projecting cylindrical portions 32 fixed to the substrate 31 and projecting upward from the substrate 31, And a reinforcing member 34. The board | substrate 31 is a part fixed to the jack 50, and has comprised the shape close | similar to a square by planar view, as shown in FIG. A through hole 31 a through which the upper side of the screw shaft 52 of the jack 50 passes is formed at the center of the substrate 31. The substrate 31 is fastened and fixed to the movable portion 53 of the jack 50 by a fastening member (not shown), and a plurality of insertion holes 31b through which the fastening member is inserted are formed in the peripheral portion of the substrate 31. Is formed so as to penetrate through the substrate 31.

  The four protruding cylinder portions 32 are arranged so as to coincide with the arrangement positions of the four support columns 10 that construct the support work 1. These protruding cylindrical portions 32 are the same. The outer diameter of each protruding cylindrical portion 32 is substantially the same as the outer diameter of the portion constituting the middle portion of the column 10 in the vertical direction, that is, the portion other than the lower small diameter portion 13 and the upper small diameter portion 15 of the column 10. The inner diameter of each protruding cylindrical portion 32 is set to an inner diameter that allows the lower small diameter portion 13 of the support column 10 to be inserted into the protruding cylindrical portion 32. Specifically, it is substantially equal to the outer diameter of the lower small diameter portion 13 or lower. It is set slightly larger than the outer diameter of the side small diameter portion 13. By inserting the lower small-diameter portion 13 of each support column 10 into each protruding cylinder portion 32, the lower ends of the support columns 10 are connected to each other, and the relative positional relationship between the lower end portions of the support columns 10 is appropriately maintained. Further, the lower small diameter portion 13 is inserted into the protruding cylinder portion 32, so that the lower small diameter portion 13 is hardly displaced in the radial direction with respect to the protruding cylinder portion 32. Further, in a state where the lower small diameter portion 13 is inserted into the protruding cylinder portion 32, the lower step portion 14 contacts the upper end portion of the protruding cylinder portion 32.

  Four reinforcing members 34 are provided. Each reinforcing member 34 is made of a plate material fixed to the upper surface of the substrate 31 and the outer surface of the protruding cylindrical portion 32, and is disposed so as to protrude upward from the upper surface of the substrate 31. Both ends of the reinforcing member 34 are fixed to the outer surfaces of the adjacent protruding cylindrical portions 32, and the two protruding cylindrical portions 32 are connected by one reinforcing member 34.

  The upper end connector 40 is configured in the same manner as the lower end connector 30 and is used as the upper end connector 40 by reversing the top and bottom of the lower end connector 30. Can be done. That is, the upper end connector 40 includes a substrate 41 that extends in the horizontal direction, four projecting cylindrical portions 42 that are fixed to the substrate 41 and project downward from the substrate 41, and a reinforcing member 44. . The upper small diameter portion 15 of the column 10 is inserted into the protruding cylinder portion 42. By inserting the upper small diameter portion 15 of each support column 10 into each projecting cylinder portion 42, the upper ends of the support columns 10 are connected to each other, and the relative positional relationship between the upper end portions of the support columns 10 is appropriately maintained.

  The substrate 41 of the upper end connector 40 supports the structure 100 directly or with other members interposed. Further, a jack (not shown) may be disposed on the upper side of the substrate 41.

  As shown in FIG. 3, the cloth material 60 includes a bar 61 that extends in the horizontal direction, and a wedge-shaped engagement protrusion 62 that protrudes downward from both ends of the bar 61. The engaging protrusion 62 is adapted to engage with the connecting portion 12 while being inserted into the engaging hole 12a of the support column 10 from above. In addition, at both ends of the bar 61, protrusions 63 that protrude upward are provided.

  The dimension in the horizontal direction of the cloth material 60 is set to a length corresponding to the interval between the adjacent support works 1. The interval between the adjacent support members 1 is set to be a predetermined interval according to the horizontal length of the bar 61 of the cloth material 60. The interval between the support works 1 can be set according to the weight of the structure 100. A plurality of supporters 1 are connected and integrated by the cloth material 60.

  Next, the case where the supporting structure 1 comprised as mentioned above is constructed | assembled is demonstrated. As described above, the materials constituting one support 1 are the four support columns 10, the plurality of intermediate connection tools 20, the lower end connection tool 30, the upper end connection tool 40, and the jack 50. is there. Since the intermediate connector 20 is merely welded to the support column 10 by the wedge-shaped engagement protrusion 22 and is not welded or the like, it can be easily attached to and detached from the support column 10. Moreover, since the lower side small diameter part 13 of each support | pillar 10 is only inserted in each protrusion cylinder part 32, and it is not welded etc., the lower edge part connector 30 can be easily attached or detached with respect to the support | pillar 10. it can. The same applies to the upper end connector 40.

  Therefore, the supporting work 1 can be easily disassembled on site and can be easily constructed. And in the state which disassembled the support work 1, since the support | pillar 10 is a non-connecting state, it becomes possible to convey separately. That is, since it is the weight which can be conveyed by manual power if it is one support | pillar 10, an operator can carry in the support | pillar 10 to an underground pit or a sealed room manually.

  Further, when constructing the support 1, the intermediate portions in the vertical direction of the four columns 10 are connected by the intermediate connector 20, and the lower ends of the four columns 10 are connected to the lower edge connector 30. And the upper ends of the four support columns 10 are connected by the upper end connector 40. By connecting the lower end portions and the upper end portions of the struts 10, the relative positional relationship between the lower end portions of the struts 10 is appropriately maintained, and the relative positional relationship between the upper end portions is appropriately maintained. Kept. Therefore, the structure 100 can be supported in a stable state.

  Further, as in Modification 1 of Embodiment 1 shown in FIGS. 9 and 10, 4 is inserted into the lower end connector 30 from the opening at the lower end (vertical end) with respect to each column 10. Two insertion tube portions 33 may be provided. In the first modification, although not shown, the lower small diameter portion and the upper small diameter portion 15 of the support column 10 are not provided.

  In the first modification, the lower side of the insertion cylinder part 33 of the lower end connector 30 is fixed by welding or the like in a state where it is inserted into the protruding cylinder part 32. The outer diameter of the insertion tube portion 33 is an outer diameter that can be inserted into the lower portion of the support column 10. Specifically, the outer diameter of the insertion tube portion 33 is substantially the same as the inner diameter of the lower portion of the support column 10 or slightly smaller than the inner diameter of the lower portion of the support column 10. Is set. The upper side of the insertion cylinder part 33 protrudes from the upper end part of the protruding cylinder part 32 in the center line direction (upward) of the protruding cylinder part. A portion protruding from the protruding cylinder portion 32 in the insertion cylinder portion 33 is inserted into the support column 10. The lower end portion of the support column 10 is brought into contact with the front end portion (upper end portion) in the protruding direction of the protruding cylindrical portion 32. Thereby, the height of the support | pillar 10 is determined and the weight of the structure 100 acts mainly with respect to the protrusion cylinder part 32 from upper direction. Further, by inserting the insertion tube portion 33 into the support column 10, the lower end portion of the support column 10 is hardly displaced in the radial direction with respect to the protruding tube portion 32. The upper end connector 40 can be configured in the same manner. Alternatively, only the lower end connector 30 or only the upper end connector 40 may be configured as in the first modification.

  11 to 15 relate to a second modification of the first embodiment. In the modified example 2, as shown in FIG. 11, the supporting work 1 arranged on the right side in front view is located below the supporting work 1 arranged on the left side. In this case, the length of the support column 10 for constructing the right supporter 1 is made longer than the length of the supporter 10 for constructing the left supporter 1. Further, the lower side of the support column 10 of the right support 1 and the lower side of the support column 1 of the left support 1 are connected by the cloth material 70. As shown in FIGS. 12 to 15, the cloth material 70 includes a first tube material 71, a second tube material 72, and a third tube material 73. The first pipe 71 is connected to the first end member 74 via the first angle adjustment unit 76. Further, the second pipe material 72 is connected to the second end member 75 via the second angle adjusting unit 77. Both sides of the third pipe material 73 are inserted from the side opposite to the first end member 74 in the first pipe material 71 and are inserted from the side opposite to the second end member 75 in the second pipe material 72. And the 1st pipe material 71 and the 2nd pipe material 72 are connected by the 3rd pipe material 73, The space | interval of the 1st pipe material 71 and the 2nd pipe material 72 can be adjusted now in this connection state. That is, the third tube 73 is inserted into the first tube 71 and fixed to the first tube 71, while the third tube 73 is inserted into the second tube 72 and centered with respect to the second tube 72. It can slide in the direction. Then, as shown in FIG. 14, when the lock bolt 80 provided on the second pipe material 72 is tightened, the lock bolt 80 hits the third pipe material 73 and the relative movement between the third pipe material 73 and the second pipe material 72 is caused. Be blocked. FIGS. 12 and 14 show a state in which the interval between the first tube 71 and the second tube 72 is widened, and FIGS. 13 and 15 show a state in which the interval between the first tube 71 and the second tube 72 is narrowed. Show.

  The first end member 74 is provided with a wedge-shaped engagement protrusion 78 that protrudes downward. The engagement protrusion 78 is engaged with the connecting portion 12 in a state where the engagement protrusion 78 is inserted into the engagement hole 12a of the column 10 from above. Similarly, the second end member 75 is also provided with a wedge-shaped engagement protrusion 79.

  The 1st angle adjustment part 76 is comprised so that the inclination-angle of the 1st pipe material 71 with respect to the 1st end member 74 can be changed continuously, and is a universal joint (universal joint). The second angle adjustment unit 77 is similarly configured. Accordingly, as shown in FIG. 11, even if the height of the connecting portion 12 between the support column 10 of the right support work 1 and the support structure 10 of the left support work 1 is different, the support columns 10 are connected by the cloth material 70. be able to. In addition, as shown in FIG. 13, even if the support column 10 of the right support 1 is located on the rear side (upper side in FIG. 13) of the support 10 of the left support 1, They can be connected by the cloth material 70.

(Embodiment 2)
16 to 19 relate to Embodiment 2 of the present invention. In this Embodiment 2, since the number of the support | pillars 10 which are constructing one support work 1 is five, it is different from that of Embodiment 1, and the other parts are the same as in Embodiment 1, Hereinafter, the same parts as those in the first embodiment are denoted by the same reference numerals, description thereof will be omitted, and different parts will be described in detail.

  In contrast to the case where there are four support columns 10 according to the first embodiment, in the second embodiment, the support columns 10 are added to the center of each support work 1 as shown in FIG. Accordingly, the number of protruding cylindrical portions 32 of the lower end connector 30 and the number of protruding cylindrical portions 42 of the upper end connector 40 are five. Moreover, as shown in FIG. 19, the eight connection parts 12 of the support | pillar 10 are provided in the same height, and protrude radially.

  In the second embodiment, as in the first embodiment, the operator can manually carry the column 10 to the underground pit or the sealed room. Moreover, since the lower end parts of the five support | pillars 10 are connected by the lower side edge part connector 30, and the upper end parts of the five support | pillars 10 are connected by the upper side edge part connector 40, The relative positional relationship between the lower end portions is appropriately maintained, and the relative positional relationship between the upper end portions is appropriately maintained. Therefore, the structure 100 can be supported in a stable state.

  In addition, in Embodiment 2, the structure which provides an insertion cylinder part in the lower edge part connector 30 and the upper edge part connector 40 similarly to the modification 1 of Embodiment 1 may be sufficient. In the second embodiment, the struts 10 may be coupled by the cloth material 70 similar to that of the second modification of the first embodiment.

  As described above, the support according to the present invention can be used when supporting a structure at various construction sites or construction sites, for example.

DESCRIPTION OF SYMBOLS 1 Supporting work 10 Support | pillar 20 Intermediate | middle part connector 30 Lower edge part connector 31 Substrate 32 Projection cylinder part 33 Insertion cylinder part 34 Reinforcement member 40 Upper edge part connector 50 Jack 60 Cloth material 70 Cloth material

Claims (1)

In the support work that supports the structure from below,
A plurality of struts extending in the vertical direction and spaced apart in the horizontal direction;
An intermediate connection tool that is detachably attached to the vertical intermediate portion of the support column and connects the intermediate portions of the support column,
It is detachably attached to the lower end of the column, and includes an end connector that connects the lower ends of the column .
The strut is made of a pipe material that is open at both ends in the vertical direction.
The end connector includes a substrate extending in the horizontal direction, a plurality of projecting cylindrical portions that are fixed to the upper surface of the substrate and project upward from the upper surface of the substrate, and a reinforcing member that reinforces the projecting cylindrical portion. And
The lower end of the support column comes into contact with the upper end of the protruding cylinder,
The protruding cylinder part is fixed by welding in a state where the lower side of the insertion cylinder part to be inserted from the lower end opening is inserted into the support column, and the upper side of the insertion cylinder part is the upper end of the projection cylinder part Provided to protrude upward from the part ,
The reinforcing member is fixed to the upper surface of the substrate and the outer surfaces of the plurality of protruding cylindrical portions by welding .

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