JP4446814B2 - Prop bracket - Google Patents

Description

The present invention relates to a post fitting used for a wedge-tight scaffold.

Conventionally, struts constituting a wedge-tightened scaffold are horizontally disposed on a strut pipe formed of a steel pipe having a predetermined length (for example, 900 mm, 1900 mm, 2090 mm, 2850 mm, and 3800 mm). A plurality of, for example, two or four hook mounting portions that can be attached to the wedge-shaped hook portions provided on the bracket, arm wood, handrail, etc., are welded at predetermined intervals (for example, 450 mm intervals or 475 mm intervals). (For example, refer to Patent Document 1). Moreover, the horizontal member attached to the hook attachment part of a support | pillar pipe is formed by welding a hook part to the one end or both ends of the horizontal pipe formed with the steel pipe of predetermined length.

JP 2001-173222 A

However, since the dimensions of the support column and the horizontal member are determined, there is a problem in that there is no flexibility in mounting. In addition, since the hook attachment part is attached to the steel pipe and the hook attachment part is attached to the pillar pipe and the horizontal pipe is attached to the horizontal member, the problem is that distortion occurs at the time of welding and bulky at the time of storage. There was also. Furthermore, in order to connect the support column vertically, there has been a problem that an engaging portion for engaging the upper end of the support column with the lower end of another support column has to be provided.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a compact and flexible support bracket.

The strut metal fitting according to claim 1, which meets the purpose, a pipe member having a length of 180 mm or more and 450 mm or less attached to the strut pipe in use ;
Third and fourth hook mounting portions attached to the left and right sides of the pipe member opposite to each other, and the third and fourth hook mounting portions on the front and rear sides of the pipe member. First and second hook mounting portions provided to face each other ;
Respectively provided above and below the pipe member, and first and second bolts screwed to the first and second internal thread and the first and second internal thread, the first and second bolts Are inserted to the inside of the pipe member, and first and second strut pipe tightening portions capable of tightening the strut pipe inserted into the pipe member ;
A wedge-shaped hook portion that can be fitted into the first to fourth hook mounting portions, a short tube having the hook portion provided on the distal end side, and a proximal end side of the short tube to the inside of the short tube A hook-forming metal fitting having a third female screw for screwing a third bolt for tightening a horizontal pipe to be inserted;
Moreover, the first female screw is located above the first and second hook mounting portions, respectively, at a position where the hook portion can be fitted into the first and second hook mounting portions, and the second female screw is Below the third and fourth hook attachment portions, the hook portions that fit into the third and fourth hook attachment portions are provided at positions that do not contact the second female screw.

2. The strut fitting according to claim 1, wherein the pipe member can be, for example, one or both of a general structural carbon steel pipe and a mechanical structural carbon steel pipe, and has an outer diameter smaller than the inner diameter of the pipe member. For example, it is possible to insert a support pipe made of one or both of a general structural carbon steel pipe and a mechanical structural carbon steel pipe. Moreover, the 1st-4th hook attaching part is formed in the cylinder shape opened up and down in order to insert a hook part from the top. In addition, since a hook attachment part may form water inside by rain etc. when it forms in a box shape and rust may generate | occur | produce, it is preferable to form in a cylinder shape.

2. The support bracket according to claim 1, wherein two each of the first and second female threads are provided. The first and second bolts that are respectively screwed into the female screw preferably have pointed ends. As a result, the pipe member can be firmly fixed to the support pipe. Here, the first and second female screws may be constituted by a through hole provided in the pipe member and a nut that is welded in communication with the through hole and the first and second bolts are respectively screwed together. In this case, the through hole may be tapped to form a female screw stop. Further, the first and second female screws may be configured only by a through hole in which a pipe member is tapped and a female screw is formed, and the first and second bolts may be directly screwed into the through hole.

The support bracket according to claim 2 is the support bracket according to claim 1 , wherein the pipe member has an inner diameter of 42 mm or more and 54 mm or less.
As the support pipe inserted into the pipe member, one having an inner diameter smaller than that of the pipe member, for example, 40 mm to 50 mm is preferably used.

As a horizontal pipe which constitutes a horizontal member by inserting into a short pipe, for example, either or both of a general structural carbon steel pipe and a mechanical structural carbon steel pipe can be used. Moreover, a horizontal member can be attached to one end or both ends of a horizontal pipe, for example, and any one horizontal member of a bracket, a jumping bracket, arm timber, and a handrail can be formed.

Since the pipe member and the support pipe are separated from each other, the support metal fitting according to claim 1 and dependent claim 2 is compact and is not bulky during storage and transportation. In addition, since the support pipe is inserted into the pipe member, the support bracket can be fixed to the support pipe at various intervals. Furthermore, since the column pipe tightening portions are respectively provided above and below the pipe member, the column metal fitting can be firmly attached to the column pipe and two column pipes can be connected inside the pipe member.

Since the pipe member has an inner diameter of 42 mm or more and 54 mm or less and a length of 180 mm or more and 450 mm or less, the post fitting according to claim 2 is very compact.

Moreover, the support | pillar metal fitting of Claim 1 has a hook formation metal fitting provided with the short member in which a horizontal member is provided in a hook part and a hook part is provided in the front part side, and a horizontal pipe can be inserted from the base part side. Therefore, the length of the horizontal member can be changed. In addition, the hook formed fitting, since the inserted to the inside of the short pipe obtain Bei the third bolt tightening the horizontal pipe, it is possible to firmly fix the horizontal pipe.

Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.
Here, FIG. 1 is a side view of a strut device using a strut fitting according to the first embodiment of the present invention, FIG. 2 is a plan view of the strut fitting, and FIG. 3 is a second embodiment of the present invention. FIG. 4A is a perspective view of the support bracket according to the third embodiment of the present invention, FIG. 4B is an explanatory view of the band mechanism of the support bracket, and FIG. It is explanatory drawing of the band mechanism which concerns on the modification of a metal fitting.

With reference to FIG.1 and FIG.2, the support | pillar 14 and the support | pillar apparatus 11 which use the support | pillar metal fitting 10 which concerns on the 1st Embodiment of this invention are demonstrated.
The strut 10 is attached to a strut pipe 13 formed of a general structural carbon steel pipe having an outer diameter of 48.6 mm at a predetermined interval (for example, 475 mm), and is used for a wedge-tight scaffold (not shown). Is configured. The strut fitting 10 has a general structure with an inner diameter of 42 mm or more and 54 mm or less, and a length of 180 mm or more and 450 mm (in this embodiment, for example, the inner diameter is 52.5 mm, the length is 200 mm, and the thickness is 4 mm). It has the pipe member 15 formed with the carbon steel pipe for use.

In addition, a wedge-shaped hook 43 attached to the end of a handrail 41, which is an example of a horizontal member used in a wedge-binding scaffold, is fitted into the center portion outside the pipe member 15 from above. The fourth hook mounting portions 16 to 19 are provided at intervals of 90 degrees in the circumferential direction with the axial center of the pipe member 15 arranged in the vertical direction, that is, the axial center of the pipe member 15 at the center. The first and second hook mounting portions 16 and 17 and the left and right third and fourth hook mounting portions 18 and 19 are provided so as to face each other, and the first and second hook mounting portions 16 arranged in the front and rear are provided. , 17 are installed below the third and fourth hook attachment portions 18, 19 arranged on the left and right sides (the same applies to the following embodiments).

The first to fourth hook attachment portions 16 to 19 are each formed by bending the steel plate so as to have a U-shaped cross section when seen in plan view, and for locking the hook portion 43 of the handrail 41. 20 and side wall portions 21 and 22 provided on both sides of the locking portion 20. The locking portion 20 has a width that is at least larger than the width of the hook portion 43 to be engaged, and is formed in a rectangular shape when viewed from the front. The first to fourth hook attachment portions 16 to 19 are welded to the pipe member 15 at the end portions of the side wall portions 21 and 22 so that the pipe member 15 is open at the top and bottom. The side walls 21 and 22 are formed so that the lower part is shorter than the upper part, and the locking part 20 has an angle of, for example, 5 degrees or more and 30 degrees or less with the axis of the pipe member 15. It is arranged at an angle.

As shown in FIG. 2, the upper and lower portions of the pipe member 15 are welded to the through hole 23 that is inserted to the inside of the pipe member 15 and is tapped to form a female screw, and to the through hole 23. For example, one or two (here, two) first female screws 25 and 26 each having a nut 24 and second female screws 27 and 28 are provided. First bolts 29 and 30 are screwed into the first female screws 25 and 26, and second bolts 31 and 32 are screwed into the second female screws 27 and 28. The 1st and 2nd volt | bolts 29-32 are formed in the shape where the front-end | tip sharpened, and the 1st and 2nd volt | bolts 29-32 are pressed against the support | pillar pipe 13 inserted in the pipe member 15, and are firmly fixed. Can do.

Here, the first female threads 25, 26 and the first bolts 29, 30 constitute a first support pipe fastening portion 33 provided on the upper portion of the pipe member 15, and the second female threads 27, 28 and the first Two bolts 31 and 32 constitute a second support pipe fastening portion 34 provided at the lower portion of the pipe member 15. Here, the first female screws 25 and 26 are respectively located above the first and second hook mounting portions 16 and 17, and the hook portions of the handrail 41 on the first and second hook mounting portions 16 and 17. 43 is formed at a position where it can be inserted. Further, the second female screws 27 and 28 are respectively below the third and fourth hook mounting portions 18 and 19, and the hook portions 43 of the handrail 41 on the third and fourth hook mounting portions 18 and 19 respectively. The hook portion 43 is formed at a position where it does not come into contact with the second female screws 27, 28.

In addition, since the nut 24 communicated and welded to the through hole 23 is attached as the first female screws 25 and 26 and the second female screws 27 and 28, the through hole 23 may not be cut. . In addition, when the pipe member is thick (for example, the female screw can be formed with three or more pitches), the first and second female screws are penetrated to the inside of the pipe member and the tap is cut to form the female screw stopper. It consists only of holes and does not have to be fitted with nuts.

The column device 11 includes a column metal fitting 10 and a hook forming metal fitting 40 attached to the end of the handrail 41. The hook-forming metal fitting 40 can be attached to any of the first to fourth hook attachment portions 16 to 19 of the support metal fitting 10, for example, a general structural carbon steel having an outer diameter of 42.7 mm and a length of 1200 mm. A handrail 41 is configured by being attached to both ends of a horizontal pipe 42 formed of a steel pipe. In addition to the handrail, the horizontal member may be any one of a bracket in which a hook forming bracket is attached to both ends or one end, a jump bracket, and an arm wood.

The hook-forming metal fitting 40 is inserted into the first to fourth hook attachment portions 16 to 19 of the support metal fitting 10 from the upper part, is bent downward and is provided with a wedge-shaped hook part 43 that decreases in thickness from the upper part to the lower part. The hook portion 43 is provided on the front portion side, and has, for example, a short pipe 44 formed of a general structural carbon steel pipe having an inner diameter of 44 mm and a length of 200 mm into which the horizontal pipe 42 can be inserted. Yes. Further, at the lower part on the base side of the short tube 44, there are a through hole 45 inserted to the inside of the short tube 44 and fixed with a female screw, and a nut 46 connected to the through hole 45 and welded to the short tube 44, respectively. For example, the third female screw 47 is provided with one or more (here, one).

Further, the third female screw 47 is screwed with a third bolt 48 formed with a pointed tip, and the third bolt 48 is pressed against the horizontal pipe 42 inserted into the short tube 44 to be strong. Can be fixed. A horizontal pipe fastening portion 49 is configured by the third female screw 47 and the third bolt 48. Further, when the short pipe is thick (for example, the female screw can be formed with 3 pitches or more), the third female screw is configured by a female screw formed on the short pipe, and the third bolt is directly connected to the female screw. It is good also as a horizontal pipe fastening part by screwing.

With reference to FIG. 3, the support | pillar metal fitting 60 concerning the 2nd Embodiment of this invention is demonstrated. In addition, about the component same as the support | pillar metal fitting 10, the same number is attached | subjected and the detailed description is abbreviate | omitted.
The struts 60 are provided on the pipe member 15, first to fourth hook mounting portions 16 to 19 provided on the front and rear and on the left and right of the outer central portion of the pipe member 15, and the upper end portion and the lower end portion of the pipe member 15, respectively. The first and second single tube clamps 61 and 62 are examples of first and second fastening means for fastening the support pipe 13 inserted into the pipe member 15 from the periphery.

Each of the first and second single tube clamps 61 and 62 has a concave portion 63 which is substantially matched with the contact surface of the column pipe 13 having a circular cross section, and surrounds the semicircular circumference of the column pipe 13. The fixing member 64 is attached to the pipe member 15 by welding. One end of a fixed metal member 64 is rotatably connected via a pin (rivet pin) 65 and a movable metal member 66 surrounding the remaining half of the column pipe 13 is attached to the base end of the fixed metal member 64. ing. The movable metal member 66 has a U-shaped notch 67a formed at the other end, and is attached to the notch 67a via a pin (rivet pin) 67 so as to be rotatable at the tip of the fixed metal member 64. The fixed fitting member 64 and the movable fitting member 66 are fastened by the nut 69 into which the male screw rod 68 is inserted and screwed thereto, and the support pipe 13 can be fastened by the first and second single tube clamps 61 and 62.

With reference to FIGS. 4A and 4B, a column metal fitting 70 according to a third embodiment of the present invention will be described. In addition, about the component same as the support | pillar metal fittings 10 and 60, the same number is attached | subjected and the detailed description is abbreviate | omitted.
The column metal fitting 70 includes a pipe member 72 in which an upper end and a lower end are cut into a circular arc shape at a predetermined height to form a notch 71, and first to fourth front and rear and left and right of the outer central portion of the pipe member 72. Hook attaching portions 16 to 19 and first and second fastening means that are provided at the upper end portion and the lower end portion of the pipe member 72, respectively, and fasten the column pipe 13 inserted into the pipe member 72 from the periphery. 1 and second band mechanisms 73 and 74.

The first and second band mechanisms 73 and 74 are welded to the inner surface of the projecting portion 75 that is paired with the notched portion 71 of the pipe member 72 and are inserted into the pipe member 72. A fixing member 76 surrounding the circumference is provided. The fixing metal member 76 has a thickness that is substantially the same as the difference between the inner radius of the pipe member 72 and the outer radius of the support pipe 13, and the height is substantially the same as the protruding height of the protruding portion 75 from the notch 71. It is the same, and the center is formed in the cross-sectional arc shape along the protrusion part 75. FIG. Further, the fixing metal member 76 has an outer surface welded to the projecting portion 75 of the pipe member 72, and an inner surface serving as a contact portion 77 that contacts the support pipe 13. Both ends of the contact portion 77 are bent outward in the radial direction to form first and second coupling portions 78 and 79. In addition, the first coupling portion 78 is provided with a first locking hole 81 for locking the bolt 80, and the second coupling portion 79 has a first rotation in which a rivet 82 can be inserted from above. The moving part 83 is bent into a substantially circular shape so as to be formed.

In addition, the first and second band mechanisms 73 and 74 have a second rotating portion 84 that is rotatably attached to the first rotating portion 83 and a second end thereof via a rivet 82 at one end, respectively. It has a fastening member (movable fitting member) 86 provided with a first locking hole 81 and a second locking hole 85 to be paired. Here, the first locking hole 81 of the fixing metal member 76, the second locking hole 85 of the fastening member 86, the bolt 80, and the nut 87 constitute screw means, and the first and second locking holes. Bolts 80 can be inserted into the holes 81 and 85, and the nut 87 can be tightened to fix the support pipe 13 inserted into the pipe member 72.

In addition, the 1st and 2nd band mechanisms 73 and 74 may weld the nut connected to the 1st locking hole 81 and the 2nd locking hole 85 to the outer side. When either one or both of the fixing metal member 76 and the fastening member 86 are thick (for example, the female screw can be formed with three or more pitches), the first locking hole or the second locking hole is tapped. It may be cut to form a female screw, and may be screwed so that the female screwed locking hole becomes the tip of the bolt (the same applies to the following embodiments).

As shown in FIG. 5, instead of welding the fixing metal member 76 to the pipe member 72, the cross section of the notch 90 of the pipe member 72a is cut into an arc shape so that the arc angle is less than 180 degrees, for example. The fixed portion 93 is formed as a first coupling portion 95 and a second coupling portion 97 by bending the center side of the projecting portion 91 formed in this way into a contact portion 92 and bending both end portions of the projecting portion 91 outward in the radial direction. May be. A first locking hole 94 for locking a bolt (not shown) is formed in the first coupling portion 95 at the other end of the projecting portion 91, and the second coupling portion 97 at one end of the projecting portion 91 is formed in the second coupling portion 97. A first rotating portion 96 into which a rivet (not shown) can be inserted is formed from above, and one end portion of the fastening member 86 is rotatably provided at the second coupling portion 97 of the fixing portion 93. The strut pipe can be fixed by connecting the first connecting portion 95 and the other end of the fastening member 86 with a screw means.

The present invention is not limited to the above-described embodiment, and can be changed without changing the gist of the present invention. For example, some or all of the above-described embodiments and modifications are possible. The combination of the above and the support metal fitting of the present invention is also included in the scope of the right of the present invention.

It is a side view of the support | pillar apparatus using the support | pillar metal fitting which concerns on the 1st Embodiment of this invention. It is a top view of the column metal fitting. It is explanatory drawing of the support | pillar metal fitting which concerns on the 2nd Embodiment of this invention. (A) is a perspective view of the support | pillar metal fitting which concerns on the 3rd Embodiment of this invention, (B) is explanatory drawing of the band mechanism of the support | pillar metal fitting. It is explanatory drawing of the band mechanism which concerns on the modification of the support | pillar metal fitting.

10: support bracket, 11: support device, 13: support pipe, 14: support, 15: pipe member, 16: first hook mounting portion, 17: second hook mounting portion, 18: third hook mounting portion , 19: fourth hook mounting portion, 20: locking portion, 21, 22: side wall portion, 23: through hole, 24: nut, 25, 26: first female screw, 27, 28: second female screw, 29, 30: first bolt, 31, 32: second bolt, 33: first strut pipe tightening portion, 34: second strut pipe tightening portion, 40: hook forming bracket, 41: handrail , 42: horizontal pipe, 43: hook part, 44: short pipe, 45: through hole, 46: nut, 47: third internal thread, 48: third bolt, 49: horizontal pipe tightening part, 60: support Metal fitting, 61: 1st single pipe clamp, 62: 2nd single pipe clamp, 63: Recessed part, 6 : Fixed metal member, 65: Pin, 66: Movable metal member, 67: Pin, 67a: Notch, 68: Male screw rod, 69: Nut, 70: Post metal fitting, 71: Notch part, 72, 72a: Pipe member, 73: 1st band mechanism, 74: 2nd band mechanism, 75: Projection part, 76: Fixing metal member, 77: Contact part, 78: 1st coupling part, 79: 2nd coupling part, 80 : Bolt, 81: first locking hole, 82: rivet, 83: first rotating part, 84: second rotating part, 85: second locking hole, 86: fastening member, 87: Nut, 90: notch, 91: protrusion, 92: abutment, 93: fixing part, 94: first locking hole, 95: first coupling part, 96: first rotation part, 97 : Second coupling part

Claims (2)

In use, a pipe member having a length of 180 mm or more and 450 mm or less attached to the support pipe ;
Third and fourth hook mounting portions attached to the left and right sides of the pipe member opposite to each other, and the third and fourth hook mounting portions on the front and rear sides of the pipe member. First and second hook mounting portions provided to face each other ;
Respectively provided above and below the pipe member, and first and second bolts screwed to the first and second internal thread and the first and second internal thread, the first and second bolts Are inserted to the inside of the pipe member, and first and second strut pipe tightening portions capable of tightening the strut pipe inserted into the pipe member ;
A wedge-shaped hook portion that can be fitted into the first to fourth hook mounting portions, a short tube having the hook portion provided on the distal end side, and a proximal end side of the short tube to the inside of the short tube A hook-forming metal fitting having a third female screw for screwing a third bolt for tightening a horizontal pipe to be inserted;
Moreover, the first female screw is located above the first and second hook mounting portions, respectively, at a position where the hook portion can be fitted into the first and second hook mounting portions, and the second female screw is The hook portions to be fitted into the third and fourth hook attachment portions are respectively provided below the third and fourth hook attachment portions at positions where they do not contact the second female screw. Prop metal fittings. 2. The support bracket according to claim 1 , wherein the pipe member has an inner diameter of 42 mm or more and 54 mm or less.

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