JP2019065545A - Scaffolding material for pier - Google Patents

Abstract

To provide scaffolding materials for piers that can be used as scaffolding immediately after installation.SOLUTION: The present invention comprises a detachable band portion 2 that is detachable from a support pile extending above a water surface in a state of being driven into the ground of a water area and three or more step arm portions 4 integrally formed with the detachable band portion and radially extending outward from the detachable band portion, which a worker can get on. The detachable band portion has a plurality of split bands 20 arranged along an outer peripheral surface of the support pile.SELECTED DRAWING: Figure 5

Description

  [Technical Field] The present invention relates to a scaffolding material for a pier, which is used in forming a scaffolding on a pier.

  Conventionally, when carrying out work such as repair or inspection at a pier or a railway bridge, for example, as disclosed in Patent Document 1, a worker assembles a scaffold on the side or the lower side of the upper work section, There are cases where work space is secured in places where people can not walk around freely or places that are difficult to approach.

JP, 2017-53190, A

  By the way, when assembling a conventional scaffold, generally, a plurality of long pipes (so-called single pipes) and clamps for connecting the pipes are used as materials for the scaffold. When working on a support pile to support the upper work on the water area (river, sea, etc.), build a foundation of the scaffolding in the upper work with the pipe and clamp, and add the pipe to the foundation The scaffolding is extended to the periphery of the support pile.

  Thus, when assembling a scaffold using a pipe and a clamp, since a base place is needed, it will start assembling a scaffold from the place away from the support pile used as a work place. Therefore, it is a problem that it takes a long time to start work on the support pile after the scaffolding is assembled.

  In addition, at the stage where scaffolding has been started, it is also impossible to immediately use the installed pipe as a scaffolding, which causes time-consuming work for assembling the scaffolding.

  Then, this invention makes it a subject to provide the scaffolding material for piers which can be used as a scaffolding immediately after installation in view of this situation.

  The scaffolding material for a jetty according to the present invention is integrally formed with a detachable band portion that is detachable from a support pile extending above the water surface in a state of being driven into the ground of the water area, and the detachable band portion. And three or more step arm portions extending radially outward from the removable band portion, and the step portion arm portion on which the operator can ride, the removable band portion being a support pile It has a plurality of divided bands arranged along the outer peripheral surface.

  In the scaffolding material for a pier of the above configuration, when the support pile is tightened by the detachable band, each step arm part integrally formed with the detachable band is directed outward from the detachable band (from the support pile) As a result, the operator can ride on the step arm portion.

  Therefore, the scaffold material for the said pier can utilize a step foot arm part as a scaffold, when the support pile is tightened with a detachable band part.

  In the scaffolding material for a jetty according to the present invention, four footstep arm portions are formed in the detachable band portion, and the four footstep arm portions are arranged at equal intervals or substantially equal intervals around the support pile. It may be configured to be

  In this case, since the step arm portions are arranged at equal intervals around the support pile, the worker can easily move around the support pile.

  Further, in the scaffolding material for a jetty according to the present invention, the upper surface of the step arm portion may be flat.

  In this way, it becomes easy to balance when the operator stands on the step arm portion.

  Furthermore, the scaffolding material for a jetty according to the present invention may be a holder provided at the tip of the step arm portion, and may be provided with a holder capable of holding a columnar material.

  In this way, since a pillar-shaped material such as a pipe can be attached to the tip of the step arm portion, the scaffold material can be used as a foundation of a scaffold assembled on the scaffold material.

  As mentioned above, according to the scaffolding material of the present invention, the excellent effect that it can be used as a scaffolding immediately after installation can be produced.

FIG. 1 is a plan view of a scaffolding material according to an embodiment of the present invention. FIG. 2 is a front view of the scaffolding material according to the same embodiment. In FIG. 3, (a) is an enlarged view of the area | region of the vicinity of a connection piece part, (b) is an enlarged view of the area | region of the vicinity of a holder. FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. FIG. 5 is a plan view of the usage state of the scaffolding material according to the embodiment. FIG. 6 is a plan view of a use state of the scaffolding material according to the embodiment, and is a plan view of a step board installed on a step arm. FIG. 7 is a side view of the state of use of the scaffolding material according to the same embodiment, and is a side view of the scaffolding material assembled to the scaffolding.

  Hereinafter, a scaffolding material for a jetty (hereinafter referred to as a scaffolding material) according to an embodiment of the present invention will be described with reference to the attached drawings.

  Scaffolding materials are used when building footings on a pier, which is a type of structure. The pier has a support pile extending above the water surface in a state of being driven into the ground of the water area (e.g., the bottom of the river or the bottom of the seabed) and an upper work portion built on the support pile. The support pile is a cylindrical structure (so-called steel pipe pile).

The scaffolding material according to the present embodiment is configured to be installed in the support pile of the pier,
As shown in FIG. 1 and FIG. 2, the detachable band part 2 which can be detached and attached to the support pile S1 (see FIG. 2), and the fixture 3 which fixes the detachable band part 2 in a state of being attached to the support pile S1; Three or more step arm portions 4 integrally formed with the detachable band portion 2 and radially extending outward from the detachable band portion 2 and capable of being carried by an operator 4, a holder 5 provided at the end of the step arm portion 4, and a protective sheet 6 disposed between the support pile S 1 and the detachable band portion 2.

  As shown in FIG. 1, the detachable band portion 2 has a plurality of divided bands 20 arranged along the outer peripheral surface of the support pile S1. The detachable band portion 2 according to the present embodiment has two divided bands 20.

  The divided band 20 has a curved band 200 curved in an arc shape, and a pair of connecting pieces 201 formed at each end in the curved circumferential direction of the curved band 200.

  The curved band portion 200 is disposed with the inner peripheral surface facing the outer peripheral surface side of the support pile S1.

  The connection piece portion 201 is formed to extend outward from the short side of the curved band portion 200. Further, the vertical width of the curved band portion 200 and the vertical width of the connecting piece portion 201 are set to be the same or substantially the same (see FIG. 2). Furthermore, the through hole 201a penetrating in the thickness direction is formed in the connection piece portion 201 (see FIG. 3A).

  The division band 20 is spaced from the connection piece 201 of the division band 20 adjacent to the connection piece 201 in a state where the curved band 200 is disposed with the inner circumferential surface facing the outer peripheral surface of the support pile S1. Are configured to face each other.

  Moreover, in the state which made the connection piece part 201 of the adjacent division | segmentation band 20 oppose, each through-hole 201a is arrange | positioned in the position which respond | corresponds.

  The fixing tool 3 is configured to be able to narrow the distance between the connection piece portions 201 in a state in which the connection piece portions 201 arranged opposite to each other are connected.

  In addition, as shown to Fig.3 (a), the fixing tool 3 which concerns on this embodiment is comprised by the volt | bolt 30 and the nut 31, and is connected to the through-hole 201a of each connection piece part 201 opposingly arranged. By inserting the bolt 30 and screwing the nut 31 to the tip end of the bolt 30, it is possible to connect two opposing connection pieces 201. In addition, if the nut 31 is tightened to the tip of the bolt 30, the distance between the two connection pieces 201 is narrowed, so that the outer peripheral surface of the support pile S1 can be tightened by the curved band 200 of each split band 20. It has become.

  As shown in FIG. 1, the scaffolding material 1 according to the present embodiment has four step arms 4, and two step arms 4 are formed in one divided band 20.

  The step arm portion 4 is configured to be arranged at equal intervals or substantially equal intervals in the circumferential direction along the outer peripheral surface of the support pile S1 in a state where the detachable band portion 2 is attached to the support pile S1. The step arm portions 4 according to the present embodiment are configured to be disposed at an interval of 90 degrees in the circumferential direction.

  The step arm portion 4 is formed at a position shifted from the middle point of the curved band portion 200 to one end side and a position shifted from the middle point of the curved band portion 200 to the other end side . More specifically, the step arm portion 4 has a distance corresponding to about one-fourth of the total length (the curved band 200) with the middle point of the curved band 200 formed in a semicircular shape as a base point. It is formed in the position which shifted to the edge part side of, and the position which shifted to the other edge side. Further, the pair of step arm portions 4 are formed to line up at an interval of about 45 degrees.

  As shown in FIG. 4, the step arm portion 4 is in the form of a band plate, and an upper wall portion 40 having one short side integrally connected to the outer peripheral surface of the curved band portion 200, and the upper wall portion A lower receiving wall 41 extending downward from the lower surface of the lower 40 and extending outward from the outer peripheral surface of the curved band 200, and a tip wall provided at the tip of the upper wall 40 and the lower receiving wall 41 42 and a strip-shaped lower wall 43 located below the upper wall 40.

  The upper wall portion 40 is integrally connected to the outer peripheral surface of the curved band portion 200 so that both surfaces thereof face in the vertical direction. The upper wall portion 40 may be integrally connected to the outer peripheral surface of the curved band portion 200 by welding or the like.

  The lower receiving wall portion 41 is integrally formed with the upper wall portion 40 and the curved band portion 200. Further, the lower receiving wall portion 41 is formed so as to extend over the entire length of the upper wall portion 40 in the longitudinal direction, and to vertically descend downward from the lower surface of the upper wall portion 40.

  The step arm portion 4 according to the present embodiment is formed in a square tube shape, and the individual support walls 41 are formed for each long side of the upper wall portion 40.

  The tip wall portion 42 is a portion that constitutes the tip surface of the step arm portion 4.

  The lower wall portion 43 is also integrally connected to the outer peripheral surface of the curved band portion 200 so that both surfaces face in the vertical direction, and is formed to be continuous with the lower ends of the pair of lower receiving wall portions 41 There is.

  The holder 5 is configured to be capable of holding a columnar object (for example, a single pipe or the like), and to be rotatable relative to the step arm portion 4. The tread arm portion 4 is rotatable in the circumferential direction about the axial direction of the tread arm portion 4.

  As shown in FIG. 3 (b), the holder 5 according to the present embodiment is provided so as to be rotatable with respect to the rotary shaft 50 extending from the tip of the step arm 4 and the rotary shaft 50. And a holder main body 51.

  The rotating shaft portion 50 is formed to extend from the tip of the step arm portion 4 along the extending direction.

  The holder main body 51 has a pair of holding portions 510 connected so as to be openable and closable, and one holding portion 510 of the pair of holding portions 510 is rotatable relative to the rotation shaft portion 50 It is provided.

  Therefore, the holder main body 51 can hold (hold) the columnar object by closing the pair of holding portions 510, and rotates the pair of holding portions 510 in the circumferential direction centering on the axial center of the rotating shaft portion 50. And it is comprised so that the direction of the columnar thing currently clamped can be changed.

  The protective sheet 6 may be configured to have elasticity, and can be formed of, for example, a rubber sheet or the like.

  The configuration of the scaffolding material 1 according to the present embodiment is as described above. Subsequently, a method of using the scaffolding material 1 will be described with reference to the attached drawings. In the present embodiment, the method of using the scaffolding material 1 will be described by taking the scaffolding on the support pile S1 of the pier built in the river or the sea area as an example.

  In order to install the scaffolding material 1 in the support pile S1, first, the split band 20 is carried to the vicinity of the support pile S1 to be worked. The division band 20 can be transported manually, but a ship or the like may be used.

  Then, after winding the protective sheet 6 around the outer peripheral surface of the support pile S1 (the installation place of the scaffold material 1 on the water surface), the two divided bands 20 are arranged so as to surround the outer peripheral surface of the support pile S1. In the dividing band 20, the inner circumferential surface of the curved band 200 is applied to the outer peripheral surface of the support pile S1, and the connecting piece 201 is in a state of facing the connecting piece 201 of the adjacent dividing band 20. Is placed around the support pile S1.

  Subsequently, the connecting piece portions 201 disposed opposite to each other are connected by a connecting tool. In the present embodiment, the bolt 30 is inserted into the through hole 201 a of each of the opposingly arranged connection pieces 201, and the tip end of the bolt 30 is screwed with the nut 31 to form two opposing connection pieces 201. Connect

  Further, when the nut 31 is tightened to the tip end of the bolt 30, the distance between the two connection pieces 201 is narrowed, and the outer peripheral surface of the support pile S1 is tightened by the curved band 200 of each split band 20.

  In this manner, when the detachable band portion 2 is attached to the support pile S1, as shown in FIG. 5, each step arm portion 4 integrally formed with the detachable band portion 2 is the detachable band portion 2 Since it is in the state of radially extending outward (from the support pile S1), the worker can get on the step arm portion 4.

  As described above, according to the scaffolding material 1 according to the present embodiment, when the support pile S1 is tightened by the attaching and detaching band unit 2, the step arm parts 4 integrally formed with the attaching and detaching band unit 2 are attached and detached. Since the band portion 2 (from the support pile S1) radially extends outward, an operator can get on the step arm portion 4. Therefore, the scaffolding material 1 for the pier can be used as a scaffold used for the subsequent work when the detachable band portion 2 is attached to the support pile S1 (when installed).

  Therefore, according to the scaffolding material 1, the outstanding effect that it can be used as a scaffolding immediately after installation can be produced.

  Further, since the four step arm portions 4 are arranged at equal or substantially equal intervals in the circumferential direction along the outer peripheral surface of the support pile S1 in the detachable band portion 2, the step arm portions 4 are provided around the support pile S1. By arranging them equally or substantially equally, the worker can easily move around the support pile S1.

  Moreover, since the both sides of the strip-plate-shaped upper wall part 40 have faced the up-down direction, as for each step arm part 4, the upper surface is flat. Therefore, when the worker stands on the step arm portion 4, it becomes easy to balance.

  Furthermore, in each step arm portion 4, the lower receiving wall portion 41 is formed so as to hang straight downward from the lower surface of the upper wall portion 40, so when a load is applied from above the step arm portion 4. In addition, it is possible to prevent the bending and breaking of the step arm portion 4 and the like.

  Further, the step arm portion 4 of the present embodiment is shifted from the middle point of the curved band 200 to one end side and the position shifted from the middle point of the curved band 200 to the other end side, Specifically, a position shifted to one end by a distance equivalent to about one-fourth of the total length (curved band 200) with the middle point of the curved band 200 formed in a semicircular shape as a base point And since it is formed in the position which shifted to the other edge side, when a load is applied to the step arm part 4, the load which arises in the connection piece part 201 can be suppressed.

  Therefore, as described above, in the scaffold material 1 according to the present embodiment, the step arm portions 4 can be arranged at equal intervals around the support pile S1, and the breakage of the connecting portion of the dividing band 20 is prevented. It can also be done.

  And in scaffolding material 1 concerning this embodiment, since protection sheet 6 which has elasticity is wound around the perimeter face of support pile S1, since support pile S1 is tightened by removal band part 2 from the protection sheet 6 top, attachment and detachment band Damage to the support pile S1 due to the contact between the part 2 and the support pile S1 can be prevented.

  Further, when a load is applied to the step arm portion 4, the lower end side of the divided band 20 (curved band portion 200) bites into the protective sheet 6, so that displacement of the detachable band portion 2 with respect to the support pile S1 is prevented.

  In addition to being able to carry an operator on the step foot arm portion 4, as shown in FIG. 6, it is also possible to place other materials such as the walking board M1. In addition, since the holder 5 capable of holding the columnar material M2 such as a single pipe is provided at the tip of the step arm portion 4, as shown in FIG. 7 if the columnar material M2 is held by each holder 5. It is also possible to assemble a scaffold based on scaffolding 1.

  The scaffolding material of the present invention is not limited to the above embodiment, and it goes without saying that various changes can be made without departing from the scope of the present invention.

  In the above-mentioned embodiment, although attachment and detachment band part 2 was constituted so that it might have two division bands 20, it is not limited to this composition. For example, the detachable band portion 2 may be configured to have three or more split bands 20.

  In the said embodiment, although the fixing tool 3 was comprised with the volt | bolt 30 and the nut 31, it is not limited to this structure. The fixing tool 3 clamps the connection piece portions 201 collectively, for example, if the distance between the connection piece portions 201 can be narrowed in a state where the connection piece portions 201 arranged opposite to each other are connected. You may comprise by a clamp etc.

  In the said embodiment, although the scaffolding material 1 was comprised so that it might have the four step arm part 4, it is not limited to this structure. For example, the scaffold 1 may be configured to have three step arms 4 or may be configured to have five step arms 4.

  In the said embodiment, although the two step foot arm part 4 was formed in one division | segmentation band 20, it is not limited to this structure. For example, the plurality of divided bands 20 may include one in which the step arm portion 4 is not formed, or three or more step arm portions 4 may be formed in one divided band 20.

  Although not mentioned in particular in the above-mentioned embodiment, step arm part 4 may be constituted by a square pipe, for example. Also, if it is possible to configure the upper wall portion 40 on which the worker can ride and the lower receiving wall portion 41 that supports the load of the worker below the upper wall portion 40, for example, an angle member, H You may comprise with steel, a channel, etc.

  DESCRIPTION OF SYMBOLS 1 ... Scaffolding material, 2 ... Detachable band part, 3 ... Fixing tool, 4 ... Step arm part, 5 ... Holder, 6 ... Protective sheet, 20 ... Division band, 30 ... Bolt, 31 ... Nut, 40 ... Top wall part , 41: lower receiving wall portion, 50: rotating shaft portion, 51: holder body, 200: curved band portion, 201: connecting piece portion, 201a: through hole, 510: pinching portion, M1: walking plate, M2: columnar shape Material, S1 ... Support pile

Claims (4)

A detachable band portion that is detachable from a support pile extending above the water surface in a state of being driven into the ground of the water area,
Three or more step arm portions integrally formed with the detachable band portion and radially extending outward from the detachable band portion, the tread arm portion capable of being carried by the operator; Equipped
The detachable band portion has a plurality of divided bands disposed along the outer peripheral surface of the support pile. Scaffolding material for a pier. In the detachable band portion, four step arm portions are formed;
The scaffolding material for a jetty according to claim 1, wherein the four step arm portions are arranged at equal intervals or substantially equal intervals around a support pile. The scaffolding material for a jetty according to claim 1 or 2, wherein the upper surface of the step arm portion is flat. A holder provided at the tip of the step arm portion, wherein
The scaffolding material for piers in any one of Claim 1 thru | or 3 provided with the holding tool which can hold | maintain columnar material.