JP2010185173A - Load receiving stage - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a load receiving stage capable of simplifying and facilitating mounting work and replacing work to improve efficiency of temporary work. <P>SOLUTION: This load receiving stage is provided with a plurality of stage frame bodies 3 each composed of a beam frame 1 having an upper part connection shoe 4 with an engaging hole 6 fixed on a terminal part and a diagonal member 2 having an upper end part connected with a distal end side to turn freely in the vertical direction and a lower part connection shoe 5 with an engaging hole 7 attached to a lower end part to turn freely in the vertical direction. The upper part connection shoe 4 of each stage frame body 3 is fitted into a flange 10 with one engaging hole provided on a wedge type support column (a) in a tube and coupler scaffolding W by crossing the flange 10 to insert an upper part side wedge 8 into the engaging hole 6 of the upper part connection shoe 4 and the engaging hole of the flange 10. The lower part connection shoe 5 is fitted into the other flange 10 with an engaging hole by crossing the other flange 10 to insert a lower part side wedge 9 into the engaging hole 7 of the lower part connection shoe 5 and the engaging hole of the flange 10 and stretch a scaffolding board 12 between the beam frames 1 of adjacent stage frame bodies 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a load receiving stage temporarily installed at a required height position on the outer side of a scaffold in order to receive a load such as building materials lifted by a crane when building a building such as a building or a condominium with a scaffold.

  Known documents such as patent gazettes cannot be specifically cited as conventional load receiving stages, but conventionally, when temporarily placing a load receiving stage on a scaffold, a large number of single pipes (steel pipes) at the required height position on the outer side of the scaffold. The frame material is made up of vertical and horizontal and diagonally spaced at the required intervals, and the single pipe scaffolding side connection part and the crossing part of the single pipes are fixed one by one with pipe clamps, A stage body having a substantially inverted triangle shape as viewed from the side is formed, and a plywood is laid on the beam portion of the stage body and fixed with a wire or the like.

  In the above-mentioned conventional method, the number of pipe clamps is reduced because a number of single pipes and pipe clamps are used to connect the scaffold and frame work of the load receiving stage at the required height from the ground outside the scaffold. Increasingly, the installation work required a lot of time and labor. Also, when the height of the scaffolding increases with the progress of construction, it is necessary to replace the receiving stage with the higher side of the scaffolding. In the conventional method, the pipe clamp is removed and attached each time the receiving stage is replaced. There was a need to work, and the temporary work efficiency of the receiving stage was very bad.

  In view of the above circumstances, an object of the present invention is to provide a load receiving stage that can easily perform attachment work and replacement work and can improve the temporary work efficiency.

  Means for solving the above problems will be described with reference numerals in the embodiments described later. The load receiving stage S of the invention according to claim 1 has a substantially U-shaped engagement hole at the base end portion in a side view. A beam frame 1 to which an upper connection shoe 4 with 6 is fixed, and an upper end portion of the beam frame 1 is connected to the tip end side of the beam frame 1 so as to be rotatable in the vertical direction, and a lower end portion is provided with a substantially U-shaped engagement hole 7 in side view. The lower connection shoe 5 includes a plurality of stage frames 3 each including an oblique member 2 that is rotatably attached in the vertical direction. The upper connection shoes 4 of each stage frame 3 are connected to a wedge-type support a of a single-tube scaffold W. The upper wedge 8 is inserted over the engagement hole 6 of the upper connection shoe 4 and the engagement hole 11 of the flange 10 so as to straddle the flange 10 with one engagement hole 11 provided in the lower portion. The connection shoe 5 is fitted over the other flange 10 with the engagement hole 11 to engage the lower connection shoe 5. The lower wedge 9 is inserted between the hole 7 and the engagement hole 11 of the flange 10, and the scaffold plate 12 is bridged between the beam frames 1, 1 of the adjacent stage frame bodies 3, 3. To do.

  A second aspect of the present invention is the load receiving stage S according to the first aspect, wherein a handrail post mounting vertical rod 13 is vertically suspended at the tip of the beam frame 1, and the upper end 13 a of the vertical rod 13 is hand-held. It is characterized in that the lower end portion of the sliding column 14 is fitted and attached.

  The effect of the invention by the above solution will be described with reference numerals of embodiments to be described later. According to the invention according to claim 1, it is provided at the base end portion of the beam frame 1 forming each stage frame body 3. The upper connection shoe 4 and the lower connection shoe 5 provided at the lower end of the diagonal member 2 are provided on the upper and lower wedges 8 with respect to the flange 10 with the engagement hole 11 provided on the wedge-type support a of the single pipe scaffold W. , 9 can be attached in a wedge manner, and can be easily attached / removed with a single hammer. Therefore, the attachment and replacement work of the load receiving stage S can be easily performed to improve the temporary work efficiency. be able to.

  The stage frame body 3 of the load receiving stage S is connected to a beam frame 1 having an upper connection shoe 4 fixed to a base end portion, and an upper end portion is connected to a distal end side of the beam frame 1 so as to be rotatable in the vertical direction. The lower connecting shoe 5 is attached to the upper part of the diagonal member 2 so as to be freely rotatable in the vertical direction. The number of parts is small, the structure is simple, the manufacturing is easy, and the body can be folded compactly. It is very effective for carrying and storage. Further, in this load receiving stage S, the mounting method of the beam frame 1 and the diagonal member 2 with respect to the column a of the single pipe scaffold W is a wedge type, so that the mounting strength is large and the durability is excellent as compared with the conventional clamping method. ing.

  According to the second aspect of the present invention, the handrail post mounting vertical rod 13 is suspended upward at the tip of the beam frame 1, and the lower end portion of the handrail post 14 is connected to the upper end of the vertical rod 13. Since the handrail T is installed on the load receiving stage S, the handrail post 14 can be easily and quickly attached when the handrail T is installed.

(a) is a side view of a state in which the load receiving stage according to the present invention is attached to a scaffold, and (b) is a side view of a state in which the stage frame of the load receiving stage is folded. It is a top view of the load receiving stage. It is a principal part expanded side view of the same cargo receiving stage. (a) is an enlarged view of a part surrounded by an arrow A in FIG. 3, and (b) is a plan view of the part. (a) is an enlarged view of a portion surrounded by an arrow B in FIG. 3, and (b) is a plan view of the portion. (a) is an enlarged view of a portion surrounded by an arrow C in FIG. 3, and (b) is a drawing viewed from an arrow D in (a). (a) is a plan view of the fall prevention plate, (b) is a front view thereof, (c) is an enlarged view of a portion surrounded by an arrow E in (a), and (d) is a front view of the portion.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the drawings. A single-pipe scaffold indicated by W in FIGS. And the wife side cross member c is assembled by connecting vertically and horizontally. The wedge-type support column a is formed by fixing the flanges 10 by welding at regular intervals in the length direction. As shown in FIGS. 4 and 5, each flange 10 has an engagement hole 11 for inserting a wedge. Four are provided at intervals of 90 degrees in the circumferential direction.

  Further, as shown in FIGS. 3 to 5, the load receiving stage indicated by S in FIGS. 1 and 2 is a beam frame in which an upper connection shoe 4 with an engagement hole 6 having a substantially U-shaped side view is fixed to the base end portion. 1 and a lower connection shoe 5 with an engagement hole 7 that is substantially U-shaped in a side view is attached to the lower end portion of the lower end shoe so that the upper end portion is connected to the distal end side of the beam frame 1 so as to be rotatable in the vertical direction. A plurality of stage frame bodies 3 composed of the diagonal members 2 are provided, and each stage frame body 3 can be folded as shown in FIG. 4 is straddled over one flange 10 provided on the column a of the single pipe scaffold W, and the upper wedge 8 is extended over the engagement hole 6 of the upper connection shoe 4 and the engagement hole 11 of the flange 10. While being inserted, the lower connection shoe 5 is fitted over the other flange 11 to engage the engagement hole 7 of the lower connection shoe 5. The lower wedge 9 is inserted over the engagement hole 11 of the flange 10 and the scaffolding plate 12 is bridged between the beam frames 1 and 1 of the adjacent stage frame bodies 3 and 3.

  The structure of the load receiving stage S will be described in more detail. The beam frame 1 forming the stage frame 3 is made of a steel pipe, and as shown in FIG. A vertical rod 13 for supporting the column is suspended upward, and an upper end portion 13a of the vertical rod 13 forms a handrail column mounting pin to which the lower end portion of the handrail column 14 is externally fitted. .

  As shown in FIGS. 4 (a) and 4 (b), the upper connection shoe 4 is formed in a U-shape in a side view by an upper piece portion 4a, a lower piece portion 4b, and a side piece portion 4c. An engagement hole 6 is provided in each of the piece 4a and the side piece 4c, and the side piece 4c is fixed to the tip of the beam frame 1 by welding. As can be seen from FIG. 4A, the upper wedge 8 is formed so that the front-rear width on the upper end side is slightly larger than the front-rear width of the engagement hole 11 of the flange 10, and the lower end portion includes a flange. 10 is provided with a retaining projection 15 that can pass through the engaging hole 11 and the engaging hole 6 of the lower piece 4b but cannot pass through the engaging hole 6 of the upper piece 4a. .

  As shown in FIGS. 5 (a) and 5 (b), the lower connection shoe 5 includes a shoe body 5o formed into a U-shape in a side view by an upper piece portion 5a, a lower piece portion 5b, and a side piece portion 5c. The bracket body 16 has a U-shaped bracket 16 fixed to the side piece 5c of the shoe main body 5o by welding. It is pivotally mounted so that it can rotate in the vertical direction. The lower wedge 9 is also formed in the same manner as the upper wedge 8 and can pass through the engagement hole 11 of the flange 10 and the engagement hole 7 of the lower piece 4b at the lower end portion. A retaining protrusion 15 is provided for preventing the portion 5a from passing through the engagement hole 7.

  A downward U-shaped bracket 18 is fixed by welding to the lower end portion of the vertical rail 13 for attaching the handrail struts suspended upward at the distal end portion of the beam frame 1, and the diagonal member 2 is attached to the bracket 18 by welding. The upper end portion is fitted and pivoted by a bolt / nut 19 so as to be rotatable in the vertical direction.

  As shown in FIG. 6 (a), when attaching the handrail support column 14 to the handrail support pin mounting pin 13a of the handrail support column mounting rod 13, the lower end portion of the handrail support column 14 is used as the handrail support column mounting pin 13a. When fitted externally, an engagement protrusion (not shown) 20 that protrudes from the outer peripheral surface of the pin 13a by an urging force of a spring (not shown) engages with an engagement hole 21 provided at the lower end portion of the handrail support column 14. The lower end portion of the handrail post 14 is attached and fixed to the pin 13a. When removing the handrail post 14, the pin 13a side engaging protrusion 20 engaged with the engagement hole 21 at the lower end of the handrail post 14 is pushed inward against the spring biasing force. The handrail post 14 may be pulled out.

  In order to install the load receiving stage S on the single pipe scaffold W using a plurality of stage frame bodies 3 having the above-described configuration, the upper connection shoe 4 of each stage frame body 3 is attached to the column a of the single pipe scaffold W. The upper wedge 8 is inserted across the engagement hole 6 of the upper connection shoe 4 and the engagement hole 11 of the flange 10 so as to straddle the single flange 10 provided, and the head of the wedge 8 is hammered. By hitting, the wedge 8 is wedge-engaged with the engagement holes 6 and 6 of the shoe upper and lower pieces 4a and 4b and the engagement hole 11 of the flange 10, and the base end portion of the beam frame 1 is supported by the column a. Secure to.

  In this case, as shown in FIGS. 4A and 4B, since the downward projecting piece 22 is provided by cutting and raising the required portion of the upper piece 4a of the upper connecting shoe 4, the upper connecting shoe When 4 is straddled over the flange 10, the downward projecting piece 22 is locked to the upper surface of the flange 10, and the upper piece 4 a of the shoe 4 is lifted from the upper surface of the flange 10. Thereby, the engagement action of the wedge 8 with respect to the engagement holes 6 and 6 of the shoe upper and lower pieces 4a and 4b and the engagement hole 11 of the flange 10 works effectively. That is, the wedge 8 includes a column-side end position (A) of the engagement hole 6 of the shoe upper piece 4a, an outer peripheral side position (B) of the engagement hole 11 of the flange 10, and the shoe lower piece 4b. However, when the downward projecting piece 22 is not provided, the side of the engagement hole 6 of the shoe upper piece 4a on the support column side. Since there is almost no vertical distance between the end position (A) and the end position (B) on the outer peripheral side of the engagement hole 11 of the flange 10, the above three positions (A), (B), (C) The hooking action of the wedge 8 due to this does not function sufficiently. On the other hand, by providing a downward projecting piece 22 so as to widen the vertical distance between both positions (A) and (B), the above three positions (A), (B), and (C) can be Since the triangles separated in the direction are formed (see FIG. 4 (a)), the hooking action of the wedge 8 works effectively and the upper connection shoe 4 can be firmly fixed to the flange 10 of the column a. .

  Next, the lower connection shoe 5 attached to the lower end portion of the diagonal member 2 forming the same stage frame 3 is attached to the other flange 10 at the required height position of the column a in the same manner as the upper connection shoe 4. The lower wedge 9 is inserted over the engagement hole 7 of the lower connection shoe 5 and the engagement hole 11 of the flange 10, and the head of the lower wedge 9 is hit with a hammer. The wedge 9 is wedge-engaged with the engagement holes 7 and 7 of the shoe upper and lower pieces 5a and 5b and the engagement hole 11 of the flange 10 to fix the base end portion of the beam frame 1 to the column a.

  Also in this case, as in the case of the upper connection shoe 4, the lower connecting shoe 5 is attached to the flange 10 because the downward projecting piece 22 is provided by cutting and raising the required portion of the upper piece 5 a of the lower connection shoe 5. When straddling, the upper piece 5a of the shoe 5 is lifted from the upper surface of the flange 10, whereby the wedge 9 is engaged with the engagement holes 7, 7 of the shoe upper and lower pieces 5a, 5b and the engagement hole 11 of the flange 10. It is possible to make the hooking action work effectively.

  After the plurality of stage frames 3 are attached and fixed to the columns a of the single-tube scaffold W as described above, the hooks between the adjacent beam frames 1 and 1 of the stage frame 3 as shown in FIG. By loading the scaffolding plate 12 with f, the load receiving stage S is temporarily installed at the required height position on the outer side of the single pipe scaffolding W.

  Further, a handrail T is installed on the cargo receiving stage S. In installing the handrail T, the lower end portion of the handrail strut 14 is externally fitted and attached to the handrail strut mounting vertical rod 13 that is suspended from the distal end portion of the beam frame 1 of each stage frame body 3. As schematically shown in FIG. 1, each handrail post 14 is provided with a flange 10 with an engagement hole 11 at a position corresponding to the post a of the single-pipe scaffolding W, and thus each stage frame 3 located at both ends is provided. Between the handrail strut 14 and the outer strut a of the single tube scaffold W, as shown in FIG. A girder-side handrail cross member 24 as shown in FIG. 2 is bridged between the upper and lower handrail struts 14 and 14.

  Wedge end shoes k having the same structure as the upper connection shoes 4 with wedges 8 provided on the stage frame 3 are provided at both ends of the above-mentioned wife side handrail cross member 23 and girder side handrail cross member 24. Since it is provided, the wife side handrail cross member 23 and the girder side handrail cross member 24 are attached to the support column a and the handrail support column 14 of the single pipe scaffold W in the same manner as the connection shoes 4 and 5 of the stage frame 3. It only has to be attached.

  The single-pipe scaffolding W is a scaffolding plate with a hook hook f between the wife-side cross members c and c. 12 is to be bridged. The same wedged end shoe k as that provided on the handrail cross members 23 and 24 of the handrail T is provided at both ends of each girder side cross member b and wife side cross member c. Further, the same scaffolding plate 12 is used for the single pipe scaffolding W and the load receiving stage S.

  In FIG. 2, reference numeral 25 denotes a fall protection plate interposed between the side face of the scaffolding plate 12 of the single-tube scaffold W and the side face of the scaffolding plate 12 of the load receiving stage S. The detailed structure is shown in FIG. ) To (d). 7A is a plan view of the fall protection plate 25, FIG. 7B is a front view thereof, FIG. 7C is an enlarged view of a portion surrounded by an arrow E in FIG. 7A, and FIG. It is. The fall protection plate 25 is used to prevent a tool or the like from dropping from a gap between the side surface of the scaffolding plate 12 of the single-tube scaffold W and the side surface of the scaffolding plate 12 of the load receiving stage S. Mounting shoes 27 are provided so as to protrude from both end portions of 26.

  Each mounting shoe 27 has the same structure as the upper connection shoe 4 of the stage frame 3 described above, and as shown in FIGS. 7 (c) and 7 (d), an upper piece 27a, a lower piece 27b and a side piece. The mounting bracket is formed in a U-shape when viewed from the side by the portion 27c, the engaging piece 28 is provided in each of the upper piece 27a and the side piece 27c, and the side piece 27c is provided at the tip of the plate body 26. 29, the wedge 30 is inserted across the engagement hole 28 of the shoe 27 and the engagement hole 11 of the flange 10 of the column a of the single-tube scaffold W. 7 (c) and 7 (d), 31 is a downward projecting piece provided by cutting and raising a required portion of the upper piece 27a of the mounting shoe 27, and is the same as the downward projecting piece 22 of the stage frame 3 described above. Is.

  Thus, when the fall protection plate 25 is inserted between the spar side surface of the scaffold plate 12 of the single tube scaffold W and the spar side surface of the scaffold plate 12 of the load receiving stage S, each mounting shoe 27 is attached to the single tube scaffold W. A wedge 30 is inserted between the engagement hole 28 of the mounting shoe 27 and the engagement hole 11 of the flange 10 so as to straddle one flange 10 of the support column a, and the head of the wedge 30 is hit with a hammer. Thus, the wedge 30 can be wedge-engaged with the engagement holes 28 and 28 of the shoe upper and lower pieces 27a and 27b and the engagement hole 11 of the flange 10, so that the fall protection plate 25 can be inserted easily and easily. be able to.

  According to the load receiving stage S configured as described above, the upper connection shoe 4 provided at the base end portion of the beam frame 1 forming each stage frame 3 and the lower connection shoe provided at the lower end portion of the diagonal member 2. 5 is attached to the flange 10 with the engagement hole 11 provided on the wedge-type support a of the single-pipe scaffold W via the upper-side wedge 8 and the lower-side wedge 9 so that it is simple and easy with one hammer. It can be attached and removed.

  The stage frame body 3 of the load receiving stage S includes a beam frame 1 having an upper connection shoe 4 fixed to a base end portion, and an upper end portion connected to the distal end side of the beam frame 1 so as to be rotatable in the vertical direction. It consists of diagonal material 2 with a lower connection shoe 5 attached to the lower end portion so as to be rotatable in the vertical direction. The number of parts is small, the structure is simple, the manufacture is easy, and it can be folded compactly. It is very effective for carrying and storage. Further, in this load receiving stage S, the attachment method of the beam frame 1 and the diagonal member 2 to the support column a of the scaffold W is a wedge type, so that the attachment strength is greater and the durability is superior compared to the conventional clamp type. .

  Further, the stage frame body 3 of the load receiving stage S is provided with a vertical rail 13 for attaching a handrail strut at the front end portion of the beam frame 1, and a lower end portion of the handrail post 14 at an upper end portion of the vertical rod 13. Since the handrail T is installed on the load receiving stage S, the handrail post 14 can be easily and quickly attached.

S Load receiving stage 1 Beam frame 2 Diagonal material 3 Stage frame body 4 Upper connection shoe 5 Lower connection shoe 8 Upper side wedge 9 Lower side wedge 10 Flange 13 Vertical rail for attaching handrail strut

Claims (2)

  The upper end of the beam frame is fixed to the proximal end of the upper connection shoe with an engagement hole that is substantially U-shaped in side view, and the upper end of the beam frame is pivotally connected to the distal end side of the beam frame, and the lower end is viewed in side view. A plurality of stage frame bodies each comprising a diagonal connecting member having a substantially U-shaped lower connection shoe with an engagement hole, and the upper connection shoe of each stage frame body being a wedge of a single pipe scaffold; The upper side wedge is inserted across the engagement hole of the upper connection shoe and the engagement hole of the flange, straddling the flange with one engagement hole provided on the type support post, and the lower connection shoe The lower wedge is inserted between the engagement hole of the lower connection shoe and the engagement hole of the flange, and the scaffold plate is placed between the beam frames of the adjacent stage frames. A receiving stage that is handed over.   2. A handrail support vertical gutter is suspended upward at the tip of the beam frame, and the lower end of the handrail support is fitted and attached to the upper end of the vertical gutter. The receiving stage described in.

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