JP2016050422A - Fixture and erection device for support column - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixture that enables a support column to be easily and safely attached to/detached from a beam of a structure in a short period of time, without high place work.SOLUTION: A fixture 1 for attaching a support column 50 to a beam 51 of a structure includes: a body 2; a connection pipe part 3, the upper end of which is attached in a vertically movable manner to the body 2 and to which an upper end of the support column 50 is fitted and fixed; a holding part 4 which is provided in the front part of the body 2 facing the beam 51 and which holds the beam 51; and means 5, 6, 10, 11 and 12 for making the holding part 4 hold the beam 51 when the connection pipe part 3 moves downward with respect to the body 2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a support fixture and a standing device, and more particularly, to fix a support installed to temporarily enclose a work range when performing various work such as barrier free on a station platform. The present invention relates to a jig and a standing device.

  When barrier-free construction is performed on the platform of the railway business line, it is necessary to install a temporary enclosure to distinguish the range of traffic for general passengers from the construction scope. Each of these temporary enclosures is configured by forming a framework of a wall surface by a support using a single pipe pipe and a horizontal ground, and attaching a processed steel plate to the frame.

  If the upper part of the single pipe that becomes the support is not fixed, the upper part of the single pipe is clamped to the beam of the platform roof because there is a concern that the temporary enclosure may move or break due to wind pressure when passing through the train. It is fixed with etc. The beam of the platform roof is generally made of H-section steel, and a clamp device for fixing the single pipe and the H-section steel is known as disclosed in Patent Document 1.

  However, the temporary enclosure is installed at night, which is outside the business hours of the station. Particularly, the time interval between the last train and the first train is short at a station in the center of the city, and it is difficult to secure sufficient work time. Therefore, fixing the column using the clamp device as described above takes time for the work, and since it is a work at a high place, a portable worktable must be used to ensure safety, and improvement is required. It was done.

  Moreover, the base part of the support | pillar arranges the H-section steel in the outer periphery shape of a temporary enclosure on the platform, and is fixing to the H-section steel with a clamp etc. However, the H-section steel is a heavy object, and there is a problem that a movement tool such as a plurality of workers or a hand pallet is required for the movement.

Japanese Utility Model Publication No. 6-51385

The present invention has been made based on the technical background as described above, and achieves the following object.
An object of the present invention is to provide a fixing jig capable of easily attaching and detaching a support to a beam of a structure in a short time and safely without requiring work at a high place.
Another object of the present invention is a support device for supporting a base portion of a support column, which is used in combination with the fixing jig, and is provided with a support device that can be easily moved. Is to provide.

The present invention employs the following means in order to achieve the above object.
That is, this invention is a fixing jig for attaching a column to a beam of a structure,
The body,
The upper end portion is attached to the main body so as to be movable in the vertical direction, and the connecting pipe portion to which the upper end portion of the column is fitted and fixed,
A grip portion provided at a front portion of the main body facing the beam and gripping the beam;
And a means for gripping the beam by the grip portion when the connecting pipe portion moves downward with respect to the main body.

The fixing jig is for attaching the column to a flange of a beam made of H-shaped steel,
The main body has a pair of side plates arranged in parallel to each other, and each side plate is formed with arc-shaped long holes extending in the vertical direction at positions facing each other,
The connecting pipe portion is attached to the first pin inserted into the elongated hole so that the upper end portion is supported, so that the connecting pipe portion is movable between the side plates in the vertical direction.
The grip portion is fixed to a front portion between the side plates and presses the upper surface of the flange, and is provided below the fixed press portion so as to be movable in the vertical direction, and is movable to press the lower surface of the flange. A holding part,
In each side plate, the intermediate portion is supported by the second pin provided between the side plates, so that the lever is rotatably provided.
One end of the lever is supported by the first pin, and the movable pressing portion is provided between the other ends.
When the connecting pipe part moves downward with respect to the main body, the lever rotates and the movable pressing part rises to grip the flange between the fixed pressing part and the movable pressing part. It is characterized by.

The fixing jig is for attaching the support column to a beam made of a square steel pipe,
The main body has a pair of side plates arranged in parallel to each other, and each side plate is formed with a long hole inclined downward toward the front at a position facing each other.
The connecting pipe part is attached so as to be movable in the vertical direction and the front-rear direction between the side plates, with the upper end supported by a pin inserted into the elongated hole,
The gripping portion includes a fixed pressing portion that extends forward from the both side plates and presses the upper surface and one side surface of the rectangular steel pipe, and a movable pressing portion that is provided on the connecting pipe and presses the other side surface of the rectangular steel pipe. And
When the connecting pipe portion moves downward and forward with respect to the main body, the movable pressing portion moves toward the other side surface of the rectangular steel pipe, whereby the square shape is formed between the fixed pressing portion and the movable pressing portion. It is characterized by gripping a steel pipe.

  In the fixing jig, for example, the structure is a storehouse of a station platform, and the support column is for installing a temporary enclosure on the station platform.

Furthermore, the present invention is a standing apparatus comprising the fixing jig and a support for supporting the base of the support column,
The support has a top plate and a pair of side plates, and a groove-shaped main body whose open side faces downward;
A plurality of wheels provided on the inner surface of the upper surface plate;
A plurality of leg members provided on the upper surface plate so as to be movable in the vertical direction and having a grounding plate at the lower end;
And a support pipe portion, which is provided on the outer surface of the upper surface plate and on which the base portion of the support column is fitted and fixed.

  In the above-mentioned standing apparatus, for example, the structure is a storehouse of a station platform, and the support column is for installing a temporary enclosure on the station platform.

According to the fixing jig of the present invention, it is possible to easily attach and detach the support column to the beam of the structure in a short time, and safely without the work at a high place.
Moreover, according to the standing apparatus of this invention, a support tool can be moved easily.

It is a side view which shows 1st Embodiment of a fixing jig. It is a top view of the thing of the 1st embodiment. It is AA arrow sectional drawing of FIG. It is a side view which shows the usage pattern of the thing of the said 1st Embodiment. It is a side view which shows another usage pattern of the thing of the said 1st Embodiment. It is a side view which shows 2nd Embodiment of a fixing jig. It is a top view of the thing of the 2nd embodiment. FIG. 7 is a cross-sectional view taken along line B-B in FIG. 6. It is a side view which shows the usage pattern of the thing of 2nd Embodiment. It is a side view which shows the usage pattern of the thing of the 2nd embodiment, and shows the procedure following FIG. It is a side view which shows another usage pattern of the thing of 2nd Embodiment. Embodiment of a support tool is shown, (a) is a top view, (b) is the side view partly notched. It is sectional drawing which shows the connection of a support tool. It is a front view which illustrates the temporary enclosure installed in a station platform. It is a side view of the temporary enclosure.

  Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a first embodiment of a fixing jig according to the present invention. FIG. 1 is a side view, FIG. 2 is a plan view, and FIG. 3 is a cross-sectional view taken along line AA in FIG.

  The fixing jig 1 is for fixing a column 50 made of a single pipe pipe to a beam 51 of a platform roof when installing a temporary enclosure for construction on a station platform, for example. The fixing jig 1 shown as the first embodiment is for fixing the column 50 to the lower flange 51a when the beam 51 is made of H-shaped steel. Note that the front-rear direction referred to in this specification means that the side of the fixing jig 1 facing the beam 51 is the front side, and the opposite side is the rear side (the same applies to the second embodiment described later).

  The fixing jig 1 includes a main body 2, a connecting pipe portion 3, and a grip portion 4. When the column 50 is attached to the beam 51, the upper end of the column 50 is fitted into the connecting pipe unit 3 and is fixed by the bolt 52. The main body 2 has a pair of side plates 2a and 2a arranged in parallel to each other. These side plates 2 a and 2 a are connected by a connecting plate 7 at an intermediate portion.

  Each side plate 2a, 2a is formed with an arc-shaped long hole 5 in a vertical direction at a position facing each other. A first pin 6 is inserted into these long holes 5. This 1st pin 6 penetrates the upper end part of the connecting pipe part 3 arrange | positioned between the side plates 2a and 2a to radial direction, and is supporting the connecting pipe part 3 rotatably. The first pin 6 is movable in the vertical direction within the length range of the long hole 5, and accordingly, the connecting pipe portion 3 is also movable in the vertical direction within the same length range.

  The holding part 4 has a fixed pressing part 4a that presses the upper surface of the lower flange 51a and a movable pressing part 4b that is provided below and holds the lower surface of the lower flange 51a. Each side plate 2 a, 2 a is provided with a protruding portion 8 that protrudes forward at the top, and the fixed pressing portion 4 a is fixed between the lower ends of the protruding portions 8, 8. Friction pads 9 are provided on the surfaces of the fixed pressing portion 4a and the movable pressing portion 4b for suppressing slippage between the fixed pressing portion 4a and the movable pressing portion 4b.

  Each side plate 2a, 2a is provided with a lever 10 having a bent middle portion. The levers 10 and 10 are rotatable at their intermediate portions supported by second pins 11 attached between the side plates 2a and 2a. One end of each of the levers 10 and 10 is supported by the first pin 6. The other ends of the levers 10 and 10 protrude forward from the side plates 2a and 2a, and a third pin 12 is provided between the other ends. The movable pressing portion 4b is rotatably supported by the third pin 12.

  Next, the usage pattern of the fixing jig 1 will be described. The upper end portion of the column 50 is fitted and fixed to the connecting pipe unit 3, and the operator holds the column 50 and raises the fixing jig 1 to the height position of the beam 51 as indicated by the upward arrow in FIG. 1. Then, the fixing jig 1 is moved in the horizontal direction as shown by the horizontal arrow in FIG. 1 so that the lower flange 51a enters between the fixed pressing portion 4a and the movable pressing portion 4b of the grip portion 4.

  Next, as shown by a downward arrow in FIG. 4, the connecting pipe part 3 is lowered from the main body 2 by pulling the support column 50, that is, the connecting pipe part 3. As a result, the first pin 6 is lowered along the long hole 5 and the lever 10 is rotated clockwise in FIG. 4, so that the movable pressing portion 4b is lifted between the fixed pressing portion 4a and the movable pressing portion 4b. Thus, the lower flange 51a is held and fixed.

  In order to release the holding / fixing of the lower flange 51a by the fixing jig 1, the support column 50, that is, the connecting pipe portion 3 is pushed up contrary to the above. As a result, the first pin 6 rises along the elongated hole 5 and the lever 10 rotates counterclockwise in FIG. 4, so that the movable pressing portion 4b is lowered, and the fixed pressing portion 4a and the movable pressing portion 4b The gripping / fixing of the lower flange 51a is released.

  According to the fixing jig 1 as described above, the work of attaching / detaching the support column 50 to / from the beam 51 can be easily performed in a short time. In addition, since work at high places is not involved, work safety can be ensured.

  The support column 50 is usually attached to the beam 51 in a vertical direction, but the beam 51 may not be directly above the planned installation position of the support column 50. In this case, as shown in FIG. 5, the connecting pipe portion 3 is rotated with respect to the main body 2 around the first pin 6 by operating the column 50 in a state where the fixing jig 1 is fixed to the lower flange 51 a. . Thereby, the support | pillar 50 can be attached to the beam 51 in the inclined state.

  6 to 8 show a second embodiment of the fixing jig according to the present invention, FIG. 6 is a side view, FIG. 7 is a plan view, and FIG. 8 is a cross-sectional view taken along line BB in FIG. The fixing jig 21 shown as the second embodiment is for fixing the column 50 to the beam 53 when the beam 53 is formed of a square steel pipe.

  The fixing jig 21 includes a main body 22, a connecting pipe portion 23, and a grip portion 24. The column 50 is the same as the first embodiment in that the upper end of the column 50 is fitted to the connecting pipe 23 and fixed by the bolt 52 when attached to the beam 53.

  The main body 22 has a pair of side plates 22a and 22a arranged in parallel to each other. These side plates 22 a and 22 a are connected at the upper ends by a top plate 25.

  Each side plate 22a, 22a is formed with a long hole 26 at a position facing each other. These long holes 26 are composed of inclined holes 26a that are inclined downward and forward and vertical holes 26b and 26b that are connected to the upper and lower sides thereof. Pins 27 are inserted into these long holes 26. This pin 27 penetrates the upper end part of the connection pipe part 23 arrange | positioned between side plate 22a, 22a to radial direction, and is supporting the connection pipe part 23 rotatably. The pin 27 is movable in the vertical direction and the front-rear direction within the length range of the long hole 26, and accordingly, the connecting pipe portion 23 is also movable in the vertical direction and the front-rear direction within the same length range.

  In each of the side plates 22a, 22a, a restriction long hole 28 is formed above the long hole 26. These restriction long holes 28 have inclined holes 28a having the same shape as the long holes 26, and upper and lower vertical holes 28b, 28b, and further have an arc hole 28c connected to the lower vertical hole 28b. In these restriction long holes 28, restriction pins 29 penetrating the connecting pipe portion 23 in the radial direction are inserted. The restriction pin 28 moves following the pin 27 in the range of the inclined hole 28a and the vertical holes 28b and 28b.

  The top plate 25 has an extending portion 25a extending forward, and a hanging portion 25b is provided at the front end of the extending portion 25a. The extending portion 25a and the hanging portion 25b constitute a fixed pressing portion of the grip portion 24 that presses the upper surface and one side surface of the square steel pipe 53, respectively. A curved plate 31 that is bent in the vertical direction is provided on the front surface of the connecting pipe portion 23 via a bracket 30. The curved plate 31 constitutes a movable pressing portion of the gripping portion 24 that presses the other side surface of the square steel pipe 53. Friction pads 32 are provided on the inner surfaces of the extending portion 25 a and the hanging portion 25 b and on the surface of the curved plate 31 to suppress slippage between the rectangular steel pipe 53.

  A guide plate 33 is suspended from the inner surface of the extension portion 25a. The guide plate 33 has a tapered portion 33a at the lower portion, and the tapered portion 33a is connected to the side plates 22a and 22a. The tapered portion 33a is formed with a notch 34 for allowing the curved plate 31 that is a movable pressing portion to pass (see FIG. 8).

  Next, the usage form of the fixing jig 21 will be described. The upper end portion of the support column 50 is fitted and fixed to the connecting pipe portion 23, and the operator holds the support column 50 and raises the fixing jig 21 to a position slightly higher than the beam 53 as shown by the upward arrow in FIG. . Then, the fixing jig 21 is moved in the horizontal direction as shown by the horizontal arrow in FIG. 6, and the fixing pressing portions 25 a and 25 b of the grip portion 24 are positioned above the beam 53.

  Next, as shown by a downward arrow in FIG. 9, the fixing jig 21 is lowered by lowering the column 50. As a result, the beam 53 is guided by the guide plate 33 and enters between the guide plate 33 and the hanging portion 25 b, and the extending portion 25 a comes into contact with the upper surface of the beam 53.

  Then, as shown in FIG. 10, the connecting pipe part 23 is lowered from the main body 21 by pulling the support column 50, that is, the connecting pipe part 23. Thereby, after the pin 27 descends along the upper vertical hole 26b of the long hole 26, it moves forward while descending along the inclined hole 26a, and further descends along the lower vertical hole 26b. As the pin 27 moves, the connecting pipe portion 23 moves forward while descending, so that the curved plate 31 as the movable pressing portion comes into contact with the other side surface of the square steel plate 53, and the extending portion 25a and the hanging portion The beam 53 is gripped and fixed by 25b and the curved plate 31. When the connecting pipe portion 23 is lowered, the regulation pin 29 moves following the pin 27.

  In order to release the holding / fixing of the beam 53 by the fixing jig 21, the support 50, that is, the connecting pipe portion 23 is pushed up contrary to the above. Thus, after the pin 27 rises along the lower vertical hole 26b, it moves rearward while rising along the inclined hole 26a, and further rises along the upper vertical hole 26b. With the movement of the pin 27, the connecting pipe part 23 moves upward while moving upward, so that the curved plate 31 as the movable pressing part is separated rearward from the square steel pipe 53, and the extending part 25a, the hanging part 25b, and the curved part are separated. The holding / fixing of the square steel pipe 53 by the plate 31 is released. Even when the connecting pipe portion 23 is raised, the regulation pin 29 moves following the pin 27.

  According to the fixing jig 21 as described above, the attaching / detaching operation of the support column 50 to the beam 53 can be easily performed in a short time. In addition, since work at high places is not involved, work safety can be ensured.

  When the beam 53 is not located immediately above the planned installation position of the support column 50, the fixing jig 21 of the second embodiment can be attached to the beam 53 by inclining the support column 50 similarly to the case of the first embodiment. . That is, as shown in FIG. 11, in a state where the fixing jig 21 is fixed to the beam 53, the connecting pipe portion 23 is rotated with respect to the main body 22 around the pin 27 by operating the column 50.

  At this time, since the movable pressing portion is made of the curved plate 31, it can slide while the side surface of the beam 53 is pressed, so that it can be held and fixed. Further, although the regulation pin 29 moves along the arc hole 28 c, the movement is regulated by the arc hole 28 c, so that the rotation of the connecting pipe portion 23 is regulated and the curved plate 31 does not come off the side surface of the beam 53. .

  The fixing jigs 1 and 21 are used as a standing device in combination with a support that supports the base of the support column 50. 12A and 12B show the support 60, where FIG. 12A is a plan view and FIG. 12B is a side view with a part cut away. The support 60 includes a main body 61 having a groove-shaped cross section having an upper surface plate 61a and a pair of side surface plates 61b and 61b. The main body 61 has an open side facing downward.

  A plurality of (two front and rear wheels in this embodiment) wheels 62 are provided on the inner surface of the upper surface plate 61, and the support 60 can travel in the longitudinal direction of the main body 61. A plurality of (two in this embodiment) leg members 63 are also provided on the upper surface plate 61a so as to be movable in the vertical direction. The leg member 63 is made of a bolt and is screwed to a nut 64 fixed to the inner surface of the upper surface plate 61a. Therefore, the leg member 63 moves in the vertical direction by rotating it.

  A grounding plate 65 is provided at the lower end of the leg member 63. When the leg member 63 is rotated and lowered to ground the grounding plate 65 to the platform surface, and the leg member 63 is further rotated, the main body 61 rises and the wheel 62 floats, so that the fixing jig 60 is placed at a required position. Can do.

  A support pipe portion 66 is provided on the outer surface of the upper surface plate 61 a at the center in the longitudinal direction of the main body 61. The support tube portion 66 is fitted with the base portion of the column 50 and is fixed by a bolt 67.

  One end of the main body 61 is provided with a pair of joint plates 68 and 68 for connecting to a support 60 disposed adjacent thereto. The joint plates 68 and 68 are fixed to the inner surfaces of the side plates 61 b and 61 b so as to protrude from the main body 61. A guide tube 69 for guiding the bolt 70 (see FIG. 13) is provided on the inner surface of one joint plate 68. A nut 71 for screwing the bolt 70 is provided at the other end of the main body 61. The nut 71 is fixed to the inner surface of one side plate 61b.

  In order to connect the support tools 60, 60, the joint plates 68, 68 of one support tool 60 are inserted into the main body 61 of the other support tool 60 as shown in FIG. 13. Then, a bolt 70 is inserted into the guide tube 69, and this bolt 70 is screwed to the nut 71. Of the joint plates 68, 68, one joint plate 68 passes below the nut 71 when inserted into the main body 61, so that the height dimension (width dimension) is smaller than the other joint plate 68. (See FIG. 12B).

  According to the support 60 as described above, since the vehicle can travel by the wheels 62, the movement can be easily performed.

  14 and 15 show an example of a temporary enclosure on the station platform installed using the fixing jig 1 and the support 60, FIG. 14 is a front view, and FIG. 15 is a side view. On the station platform 80, a roof 81 with a roof 83 and a pillar 82 is provided.

  The temporary enclosure 84 is configured by forming a frame of a wall surface by a plurality of support columns 50 made of a single pipe and a plurality of horizontal grounds 85 also made of a single pipe and attaching a processed steel plate 86 to the frame. In installing the temporary enclosure 84, the upper end portion of the support column 50 is fixed to the beam 51 via the fixing jig 1, and the base portion of the support column 50 is supported by the support tool 60 placed on the platform 80.

  The above embodiments are merely examples, and the present invention can take various forms. For example, in each of the above embodiments, the fixing jig according to the present invention is applied to the case where the column is attached to the beam of the station platform. However, the attachment target of the column using the fixing jig is not limited to this, Any structural beam can be a target.

DESCRIPTION OF SYMBOLS 1 Fixing jig 2 Main body 2a Side plate 3 Connecting pipe part 4 Grasping part 4a Fixed pressing part 4b Movable pressing part 5 Long hole 6 1st pin 7 Connecting plate 8 Projection part 9 Friction pad 10 Lever 11 Second pin 12 3rd Pin 21 Fixing jig 22a Side plate 23 Connecting pipe portion 24 Grip portion 25 Top plate 25a Extension portion 25b Hanging portion 26 Long hole 27 Pin 31 Curved plate 51 Beam (H-shaped steel)
53 Beam (square steel pipe)
Reference Signs List 60 support 61 main body 61a top plate 61b side plate 62 wheel 63 leg member 65 ground plate 66 support tube

Claims (6)

A fixing jig for attaching a column to a beam of a structure,
The body,
The upper end portion is attached to the main body so as to be movable in the vertical direction, and the connecting pipe portion to which the upper end portion of the column is fitted and fixed,
A grip portion provided at a front portion of the main body facing the beam and gripping the beam;
And a means for causing the grip portion to grip the beam when the connecting pipe portion moves downward with respect to the main body. The fixing jig is for attaching the column to a flange of a beam made of H-shaped steel,
The main body has a pair of side plates arranged in parallel to each other, and each side plate is formed with arc-shaped long holes extending in the vertical direction at positions facing each other,
The connecting pipe portion is attached to the first pin inserted into the elongated hole so that the upper end portion is supported, so that the connecting pipe portion is movable between the side plates in the vertical direction.
The grip portion is fixed to a front portion between the side plates and presses the upper surface of the flange, and is provided below the fixed press portion so as to be movable in the vertical direction, and is movable to press the lower surface of the flange. A holding part,
In each side plate, the intermediate portion is supported by the second pin provided between the side plates, so that the lever is rotatably provided.
One end of the lever is supported by the first pin, and the movable pressing portion is provided between the other ends.
When the connecting pipe part moves downward with respect to the main body, the lever rotates and the movable pressing part rises to grip the flange between the fixed pressing part and the movable pressing part. The fixing jig for the support post according to claim 1. The fixing jig is for attaching the support column to a beam made of a square steel pipe,
The main body has a pair of side plates arranged in parallel to each other, and each side plate is formed with a long hole inclined downward toward the front at a position facing each other.
The connecting pipe part is attached so as to be movable in the vertical direction and the front-rear direction between the side plates, with the upper end supported by a pin inserted into the elongated hole,
The gripping portion includes a fixed pressing portion that extends forward from the both side plates and presses the upper surface and one side surface of the rectangular steel pipe, and a movable pressing portion that is provided on the connecting pipe and presses the other side surface of the rectangular steel pipe. And
When the connecting pipe portion moves downward and forward with respect to the main body, the movable pressing portion moves toward the other side surface of the rectangular steel pipe, whereby the square shape is formed between the fixed pressing portion and the movable pressing portion. 2. A support fixture for a column according to claim 1, wherein the steel tube is gripped.   The fixed structure according to any one of claims 1 to 3, wherein the structure is a roof of a station platform, and the support is for installing a temporary enclosure on the station platform. jig. A standing apparatus comprising the fixing jig according to any one of claims 1 to 3 and a support for supporting the base of the support column,
The support has a top plate and a pair of side plates, and a groove-shaped main body whose open side faces downward;
A plurality of wheels provided on the inner surface of the upper surface plate;
A plurality of leg members provided on the upper surface plate so as to be movable in the vertical direction and having a grounding plate at the lower end;
And a support pipe portion, which is provided on the outer surface of the upper surface plate and on which a base portion of the support column is fitted and fixed.   The said structure is a storehouse of a station platform, The said support | pillar is for installing a temporary enclosure on the said station platform, The standing apparatus of the support | pillar of Claim 5 characterized by the above-mentioned.

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