JP2015209741A - Suspended scaffold forming member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stable suspended scaffold forming member extremely excellent in practicability.SOLUTION: A suspended scaffold forming member is composed of a tread 1 and a frame member 2 for providing the tread 1, and forms a suspended scaffold in a predetermined range by continuously providing the mutual frame members 2 suspended by a proper structure via a suspension member, and a clamp part 4 is provided on one end side in te continuously providing direction of the frame member 2, and a clamp object part 3 is provided on the other end side in the continuously providing direction of the frame member 2, and the mutual frame members 2 can be connected-fixed by holding-fixing the clamp object part 3 of the adjacent respective frame members 2 by the clamp part 4.

Description

  The present invention relates to a suspended scaffolding member.

  Conventionally, when inspecting or repairing a bridge girder such as an expressway or a bridge, a suspension scaffold as disclosed in, for example, Patent Document 1 that is hung on a bridge girder by a suspension chain or the like has been used.

Japanese Patent No. 2923200

  The present invention is a further improvement of the conventional suspension scaffold, because the adjacent frame members can be reliably fixed without forming a step on the suspension scaffold, and the frame members can be fixedly connected to each other. The present invention provides a stable and extremely practical suspension scaffold-forming member that can form not only a horizontal suspension scaffold but also a suspension scaffold that is inclined in accordance with the inclination of a bridge girder, for example.

  The gist of the present invention will be described.

  It consists of a tread board 1 and a frame member 2 on which the tread board 1 is provided, and the frame members 2 suspended from a suitable structure via a suspension member are continuously connected to each other to form a suspension scaffold within a predetermined range. It is a suspended scaffold forming member to be formed, and a clamp portion 4 is provided at one end side in the connecting direction of the frame member 2, and a clamped portion 3 is provided at the other end side in the connecting direction of the frame member 2. The suspension scaffold forming member is characterized in that the frame member 2 can be connected and fixed by clamping and fixing the clamped portion 3 of each frame member 2 with the clamp portion 4. .

  The suspension scaffold forming member according to claim 1, wherein the clamp portion 4 includes a base 6 having a receiving recess 5 for receiving the clamped portion 3 and a protrusion provided in the base 6 and protruding into the receiving recess 5. The suspension scaffolding forming member is characterized in that it has a body 7 and a pressing body 8 that receives the clamped portion 3 and presses it against the inner surface of the recess 5 in accordance with the protruding amount of the protruding body 7. .

  The suspension scaffold forming member according to claim 2, wherein the projecting body 7 is screwed and connected to the base body 6, and is provided so that the projecting amount into the receiving recess 5 can be adjusted by screwing. The present invention relates to a characteristic suspension scaffold forming member.

  The suspended scaffolding forming member according to any one of claims 2 and 3, wherein the clamped portion 3 is a shaft portion 3, and the clamp portion is clamped and fixed so that the shaft portion 3 cannot be rotated. The suspension scaffold forming member is characterized in that 4 is configured.

  The suspension scaffold forming member according to claim 4, wherein the frame member 2 is a rectangular frame member 2 composed of left and right side portions and front and rear portions, and the one front and rear portion is set to the shaft portion 3. The present invention relates to a suspended scaffold forming member.

  Further, in the suspended scaffolding forming member according to any one of claims 1 to 5, the frame member 2 is provided with a crosspiece 13 and relates to the suspended scaffolding forming member.

  Further, in the suspended scaffolding forming member according to claim 6, the upper surface of the base 6 and the upper surface of the crosspiece 13 are provided so as to be flush with each other, and the tread 1 is connected to the upper surface of the base 6 and the crosspiece. The present invention relates to a suspended scaffolding member that is supported on the upper surface of the portion 13.

  Since the present invention is configured as described above, the adjacent frame members can be securely fixed to each other, and the frame members can be fixedly connected to each other. The suspended scaffolding forming member that can form the suspended scaffolding that is stable and extremely excellent in practicality is obtained.

It is a schematic explanatory perspective view of a present Example. It is an expansion outline explanatory perspective view of a present Example. It is an expansion outline explanatory side sectional view of a present example. It is an expansion outline explanatory side sectional view of a present example.

  An embodiment of the present invention which is considered to be suitable will be briefly described with reference to the drawings showing the operation of the present invention.

  When the frame members 2 are connected to each other, the clamped portion 3 of the other frame member 2 that is locked to the clamp portion 4 is sandwiched and fixed by the clamp portion 4 of the adjacent one of the frame members 2. The members 2 are reliably connected and fixed.

  Therefore, the suspended scaffold formed according to the present invention can be stably maintained even by vibration and external force, and an additional fixing member that forms a step on the upper surface of the suspended scaffold becomes unnecessary. Further, by connecting and fixing the adjacent frame members 2 in an inclined state, the inclined state is maintained by the clamping and fixing by the clamp portion 4 so that the entire suspended scaffold is inclined in accordance with the inclined state of the bridge girder, for example. It can also be formed.

  Further, the clamp member can maintain the frame member 2 in a standing state. Therefore, for example, before leveling with respect to the existing frame member, the frame member 2 is temporarily fixed in a standing state, and the suspension member is stably attached to the frame member as close as possible to the existing side. It will be excellent in workability.

  Specific embodiments of the present invention will be described with reference to the drawings.

  The present embodiment is composed of a tread board 1 and a frame member 2 on which the tread board 1 is provided, and the frame members 2 suspended from a suitable structure via a suspension member are continuously connected to each other in a predetermined manner. A suspension scaffold forming member that forms a suspension scaffold in a range, wherein the frame member 2 has a clamp portion 4 on one end side in the connecting direction, and a clamped portion 3 on the other end side in the connecting direction of the frame member 2. The frame members 2 can be connected and fixed by clamping and fixing the clamped portions 3 of the adjacent frame members 2 by the clamp portions 4.

  Specifically, in this embodiment, one end side is suspended by being locked to the other end side of a suspension member such as a suspension chain 9 or a suspension wire fixed to the lower surface of a bridge girder of a bridge, for example. As shown in FIG. 1, for example, the suspension scaffold is formed in a predetermined range by being juxtaposed (connected) in the longitudinal direction (or the direction orthogonal to the longitudinal direction or both) of the bridge beam.

  Each part will be specifically described.

  The frame member 2 is rectangular and made of metal (for example, stainless steel), and as shown in FIG. 2, a plate frame portion 12 having a U-shape in plan view constituted by a central plate portion 10 and side plate portions 11, It is composed of a round bar-shaped shaft portion 3 laid between the free end portions of the side plate portion 11 of the plate frame portion 12, and a crosspiece portion 13 laid between the central plate portion 10 and the shaft portion 3 of the plate frame portion 12. (The side plate portions 11 and 11 are the left and right side portions of claim 5, and the central plate portion 10 and the shaft portion 3 are the front and rear portions of claim 5). A metal (for example, aluminum) tread 1 is laid on the crosspiece 13.

  Further, the clamp portion 4 is provided in a fixed state on the central plate portion 10 of the plate frame portion 12 by appropriate fixing means such as welding. A plurality (three in this embodiment) of the clamp portions 4 are provided at predetermined intervals in the longitudinal direction of the central plate portion 10. The clamp portion 4 includes a base 6 fixed to the central plate portion 10 having a receiving recess 5 that receives the shaft portion 3 as the clamped portion 3, and a protrusion that is provided on the base 6 and protrudes into the receiving recess 5. 7 and a pressing body 8 that receives the clamped portion 3 (shaft portion 3) and presses it against the inner surface of the recess 5 in accordance with the protruding amount of the protruding body 7 (see FIGS. 3 and 4).

  Specifically, the protruding body 7 is screwed and connected to a base body 6 having a substantially U-shaped receiving recess 5 that opens upward, and is provided so that the amount of protrusion into the receiving recess 5 can be adjusted by screwing. It is the bolt member 7 which is. The bolt member 7 is composed of a head portion and a tail portion, and the tail portion is screwed into a screw hole 14 provided on the tip surface of the base plate 6 facing the mounting surface of the plate frame portion 12 to the central plate portion 10. Yes. In the figure, reference numeral 17 is a nut member for adjusting the protrusion amount that is screwed into the middle part of the tail.

  The tip of the tail portion of the bolt member 7 abuts on the back surface of the pressing body 8 constituted by the claw member 8 rotatably connected to the base body 6, and as shown in FIG. It is comprised so that 8 may be rotated in the direction which presses the axial part 3. FIG.

  The claw member 8 has a concave curved surface in cross section as viewed from the front, which contacts the shaft portion 3, and the inwardly projecting return portion 15 provided at the opening edge of the receiving concave portion 5 facing the claw member 8 and the concave curved surface. Thus, the shaft portion 3 can be firmly clamped and fixed in a non-rotatable state.

  Further, the height of the base 6 is aligned so that it is flush with the top surface of the crosspiece 13 (the shaft 3 is received by the receiving recess 5 of the base 6). The upper surface of the base 6 can be supported together with the upper surface of the substrate. Accordingly, the tread plate 1 is also laid on the clamp portion 4, and the gap between the frame members 2 becomes as narrow as possible.

  The tread board 1 may be laid after the frame member 2 is installed, or may be integrated with the frame member 2 in advance. The tread board 1 is fixed to the frame member 2 by an appropriate fixing means such as a fixing screw or an annular fastening band.

  Further, the frame member 2 is provided with an annular locking member 16 on the side surface of which the hanging member such as the hanging chain 9 is locked.

  Therefore, the frame member 2 (and the tread plate 1) having the above-described configuration is suspended by the suspension member such as the suspension chain 9, and the next frame member 2 is arranged on the side of the juxtaposed direction side with the shaft portion 3 of the previous frame member 2. After the suspension member 5 is fitted to the receiving recess 5 of the base 6 and temporarily fixed by the clamp portion 4 and the frame member 2 is set up, the suspension member is attached to the locking member 16, and then the temporary fixing is released. In the horizontal state, the bolt member 7 is screwed and protruded and clamped and fixed (mainly fixed) by the claw member 8, the height is adjusted by the suspension member, etc. It is possible to form a suspended scaffold by repeating the connection.

  Since the present embodiment is configured as described above, when the frame members 2 are connected to each other, the clamp portions 4 of the adjacent one of the frame members 2 are used to cover other frame members 2 that are locked to the clamp portions 4. By sandwiching and fixing the clamp portion 3, the adjacent frame members 2 are reliably connected and fixed.

  Therefore, it can be stably maintained even by vibration or external force, and an additional fixing member or the like that forms a step on the upper surface of the suspension scaffold becomes unnecessary. Further, by connecting and fixing the adjacent frame members 2 in an inclined state, the inclined state is maintained by the clamping and fixing by the clamp portion 4 so that the entire suspended scaffold is inclined in accordance with the inclined state of the bridge girder, for example. It can also be formed.

  Therefore, in the present embodiment, the adjacent frame members can be securely fixed to each other, and the frame members can be fixedly connected to each other, so that the suspended scaffolds are inclined in accordance with the inclination of the bridge girder, for example. It can be formed stably and is extremely practical.

1 Step board 2 Frame member 3 Clamped part (shaft part)
4 Clamp part 5 Receiving recess 6 Base 7 Protruding body 8 Pushing body
13 Pier

Claims (7)

  A suspension scaffold comprising a tread board and a frame member provided with the tread board, and continuously connecting the frame members suspended via a suspension member to an appropriate structure to form a suspension scaffold within a predetermined range. A clamp member is provided on one end side in the connecting direction of the frame members, and a clamped portion is provided on the other end side in the connecting direction of the frame members, and the clamped portions of the adjacent frame members are formed members. A suspended scaffolding member configured to be able to connect and fix the frame members by clamping and fixing a portion with the clamp portion.   2. The suspended scaffolding forming member according to claim 1, wherein the clamp portion includes a base having a receiving recess for receiving the clamped portion, a protrusion provided on the base and protruding into the receiving recess, and a protrusion of the protrusion. A suspended scaffolding member having a pressing body that receives the clamped portion and presses it against the inner surface of the recess according to the amount.   3. The suspended scaffolding forming member according to claim 2, wherein the projecting body is screwed and connected to the base body, and is provided so that the projecting amount into the receiving recess can be adjusted by screwing. Forming member.   The suspended scaffolding forming member according to any one of claims 2 and 3, wherein the clamped portion is a shaft portion, and the clamp portion is configured to clamp and fix the shaft portion in a non-rotatable state. A suspended scaffolding member characterized by that.   5. The suspension scaffold forming member according to claim 4, wherein the frame member is a rectangular frame member composed of left and right side portions and front and rear portions, and the one front and rear portion is set to the shaft portion. A suspended scaffolding forming member.   The hanging scaffold forming member according to any one of claims 1 to 5, wherein the frame member is provided with a crosspiece.   The suspension scaffold forming member according to claim 6, wherein the upper surface of the base and the upper surface of the crosspiece are provided flush with each other, and the tread is supported by the upper surface of the base and the upper surface of the crosspiece. A suspended scaffolding forming member characterized by that.

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