JP4651450B2 - Scaffolding plate support device - Google Patents

Description

  The present invention relates to a scaffolding plate support device used when a temporary scaffolding is constructed on an inclined formwork or the like.

This kind of scaffolding plate support device includes a main rod, a hook member attached to the upper end portion of the main rod and engageable with the horizontal flap material of the inclined mold frame, and an auxiliary member pivotally supported on the lower end portion of the main rod.杆, a scaffolding plate supporting rod whose inner end is pivotally supported on the upper end portion of the main rod, and an outer end portion of the scaffolding plate supporting rod are coupled to the auxiliary rod so that the coupling position can be changed in the length direction. Consists of a coupling means, which is conventionally known from Patent Document 1 and the like, and constructs a temporary scaffold on the outside of an inclined formwork (concrete formwork) provided for constructing an inclined slope such as a retaining wall. Used when. That is, the hook member is engaged from above with the horizontal flap material constituting the inclined mold, and the main rod is arranged vertically along the inclined mold so that the scaffolding plate support rod is horizontal. The outer end portion of the scaffolding plate supporting rod and the auxiliary rod are coupled by the coupling means, and the scaffolding plate is placed on the scaffolding plate supporting rod.
JP-A-11-93400

  Thus, although not disclosed in Patent Document 1, the scaffold plate support device as described above has been completed after the inclined frame has been disassembled, for example, an operation on an inclined slope such as a retaining wall, or the like. Even if it is intended to be used when constructing a temporary scaffold for assembling a concrete formwork for constructing a slope slope that is connected to an upper side of the slope slope, it is possible to engage the hook member in a horizontal direction. It cannot be used because there is no butterwood.

An object of the present invention is to provide a scaffolding plate support device that can solve the above-described conventional problems, and its means is shown with reference numerals of embodiments to be described later. A hook 1, a hook member 2 that is attached to the upper end portion of the main rod 1 and that can be engaged with the horizontal flap 8 of the inclined mold 6, the auxiliary rod 3 that is pivotally supported on the lower end portion of the main rod 1, The scaffolding plate support rod 4 whose inner end is pivotally supported on the upper end portion of the main rod 1 and the outer end portion of the scaffold plate support rod 4 are coupled to the auxiliary rod 3 so that the coupling position can be changed in the length direction. The hook member 2 has a U-shaped side surface, and a through-hole portion 12 of a sea bolt 9 is provided at each end of the parallel leg portions 11a and 11b. And at the position inside the through hole 12 of one leg 11a. Rotatably pivotally supported to the upper end of Kinushi杆1, upwardly rotated about 180 degrees from the obliquely downward posture can be engaged from above the hook member 2 horizontally butter member 8 inclined formwork 6 By changing the posture, the through-hole portion 12 at the tip of both the leg portions 11a and 11b of the hook member 2 can be fitted to the sea bolt 9 protruding from the inclined surface.

  Specifically, as described in claim 2, the hook member 2 includes two U-shaped plates 2a and 2b arranged in parallel at the tips of both leg portions 11a and 11b. As a connected structure, the insides of the tips of the two leg portions 11a and 11b of the two U-shaped plates 2a and 2b can be the through-hole portions 12 of the sea bolts 9. In addition, as described in claim 3, the main rod 1, the hook member 2, and the scaffolding plate support rod 4 can be pivotally supported by one common spindle 20.

  When the hook member 2 is configured as described in claim 2, the inner end portion of the scaffolding plate support rod 4 is fitted between one leg portion 11 a of the hook member 2, and the hook The main rod 1 is composed of two strips 1a, 1b sandwiching one leg 11a of the member 2 from the outside, and the main rod 1, the hook member 2, and the scaffolding plate support rod 4 overlap with each other. When the hook member 2 is pivotally supported by one common support shaft 20 and can be engaged with the horizontal butterfly material 8 of the inclined mold 6 from above, the other of the hook members 2 It can be configured such that a butterfly material fitting space is formed between the leg portion 11b and the main rod 1.

  In this case, as described in claim 5, the auxiliary rod 3 is pivotally supported on the main rod 1 with its lower end fitted between the two strips 1a, 1b of the main rod 1. When the auxiliary rod 3, the main rod 1, and the scaffold plate support rod 4 are folded in a zigzag shape in a state where the auxiliary rod 3 and the scaffold plate support rod 4 are uncoupled, the two pieces of the hook member 2 are formed. The auxiliary rod 3 can be configured to be fitted between the U-shaped plates 2a and 2b.

  As described in claim 6, the coupling means 5 is fixed to the outer end portion of the scaffolding plate support rod 4 and can be externally fitted to the auxiliary rod 3. It is composed of through-holes 13 provided at appropriate intervals in the direction, and locking pins 18 that are detachable over the U-shaped member 17 and one through-hole 13 and that are provided with a pivot support piece 19 at the tip. Can do. In this case, as described in claim 7, a handrail support tube 14 that protrudes perpendicularly upward to the scaffold plate support rod 4 is fixed to the outer end portion of the scaffold plate support rod 4. The U-shaped member 17 of the coupling means 5 can be fixed to the lower end of the column support tube 14.

  According to the scaffolding plate support device of the present invention having the above-described configuration, when assembling the temporary scaffolding on the outside of the inclined mold frame, as in the conventional scaffolding plate support device of this type, the hook member is in a state of being inclined downward. The main plate is vertically arranged along the inclined mold frame by engaging with the horizontal flap material of the inclined mold frame from above, and the scaffold plate support rod is fixed by the coupling means so that the scaffold plate support rod is horizontal. The outer end portion and the auxiliary heel can be coupled to place the scaffold board on the scaffold board support ridge. When assembling the temporary scaffold outside the sloped slope after the sloped formwork is dismantled and removed, the hook member is rotated approximately 180 degrees from the obliquely downward posture, and the sea bolt is attached to the sloped slope via the anchor. By fitting the through-hole portion of the hook member to the base plate, the main plate of the scaffolding plate support device can be attached to the predetermined height of the inclined slope in the vertical direction. As in the case of using the scaffolding board support device, the outer edge part of the scaffolding board support bar and the auxiliary bark are coupled by the coupling means so that the scaffolding board support bar is horizontal, and the scaffolding board is placed on the scaffolding board support bar. What is necessary is just to mount a board.

  As described above, the scaffold plate support device according to the present invention has the inclined mold frame disassembled and removed when the temporary scaffold is assembled outside the inclined mold frame by using the horizontal flap material of the inclined mold frame. Even when assembling a temporary scaffold outside the later slope slope, as long as the sea bolts protruding from the slope slope are simply placed in place, the slope method can be used without using other auxiliary members. It can be easily and easily mounted on the surface to support the scaffold board.

  In carrying out the present invention, according to the configuration of the second aspect, the strength of the hook member itself can be increased, and at the same time, the through-hole portion of the sea bolt is not used in combination with another cylindrical member. As a result, the cost can be reduced. Moreover, according to the structure of Claim 3, compared with the case where a hook member and a scaffolding board support rod are separately supported with respect to a main rod, it can aim at cost reduction by reducing the number of parts. it can.

  Moreover, according to the structure of Claim 4, compared with the case where a hook member and a scaffold board support rod are pivotally supported by the side part of a main shaft, the support strength of these hook members and a scaffold board support rod is improved. While being able to raise, the width (thickness) of the whole apparatus can be made small, and it can implement as a scaffolding board support apparatus compact and convenient for handling. In this case, according to the configuration described in claim 5, the auxiliary rod, the main rod, and the scaffold plate support rod can be folded in a zigzag shape in a state where the coupling between the auxiliary rod and the scaffold plate support rod is released. However, the bulk of the entire apparatus at this time can be reduced, and the apparatus can be utilized as a convenient apparatus for transportation and storage when not in use.

  Further, according to the configuration described in claim 6, the coupling means for coupling the outer end portion of the scaffolding plate support rod and the auxiliary rod can be implemented with a simple configuration. According to the configuration described in the above, the handrail support pipe is used as a mounting seat necessary for attaching the U-shaped member of the coupling means to the lower side of the outer end of the scaffolding plate support rod made of a round pipe material or the like. Compared with the case where the U-shaped member of the coupling means is directly attached to the scaffolding plate support rod made of a round pipe material by welding or the like, the mounting of the U-shaped member is not only easier and easier. Mounting strength can also be increased.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A specific embodiment of the present invention will be described below with reference to the accompanying drawings. In FIG. 1, 1 is a main rod, 2 is a hook member, 3 is an auxiliary rod, 4 is a scaffolding plate support rod, and 5 is a coupling means. . In FIG. 1A, reference numeral 6 denotes an inclined mold frame for constructing an inclined slope, which is composed of a mold body 7 and a butter material 8 disposed on the outer side in a horizontal direction. As the butter material 8, a square steel pipe, a round steel pipe, or the like is used. In the figure, the butter material 8 made of a square steel pipe is shown. In FIG. 1B, reference numeral 9 denotes a sea bolt, which is attached to a predetermined position of the inclined slope 10 after the inclined mold frame 7 is disassembled and removed through an anchor embedded in the inclined slope 10.

  As shown in FIGS. 2 to 5, the main rod 1 is composed of two parallel strips 1a and 1b. The hook member 2 has a structure in which two U-shaped plates 2a and 2b arranged in parallel are connected to each other at the ends of both leg portions 11a and 11b, that is, two U-shaped plates 2a and 2b are formed from one metal plate. A shape formed by connecting the ends of the legs 11a and 11b is punched out and folded at the positions of the ends of the legs 11a and 11b, and both legs of the two U-shaped plates 2a and 2b are formed. The inside of the tips of 11a and 11b is a through-hole portion 12 for a sea bolt. The auxiliary rod 3 and the scaffolding plate support rod 4 are made of a round pipe material having the same diameter, and the auxiliary rod 3 has through holes 13 at regular intervals in the region from the upper end to the middle position in the length direction. Is provided.

  A handrail support tube 14 projecting upward at a right angle is fixed to the outer end of the scaffolding plate support rod 4 by welding, and inserted into the handrail support tube 14 as shown in FIG. A handrail support fixing bolt 16 for fixing the handrail support 15 is provided. And the U-shaped member 17 that can be fitted to the auxiliary rod 3 from above is fixed to the lower end of the handrail support column support pipe 14 by welding so that the lower end of the handrail support column support tube 14 is closed, A coupling means 5 for coupling the auxiliary rod 3 and the scaffolding plate support rod 4 is constituted by the U-shaped member 17 and the locking pin 18 inserted through the through hole 13 of the auxiliary rod 3 fitted inside thereof. ing. The locking pin 18 is provided with a retaining shaft supporting piece 19 that is pivotally supported at the tip end of the pin whose head is bent in an L shape so as to be able to hang downward at right angles by its own weight from the direction in which the pin is extended. ing.

  The hook member 2 is configured such that the distance between the two U-shaped plates 2a and 2b arranged in parallel is slightly larger than the outer diameter of the auxiliary rod 3 and the scaffolding plate support rod 4, and the inside of both leg portions 11a and 11b. The width of one leg 11a is slightly wider than the width of the main rod 1 (the width of the strips 1a and 1b), and the width of the other leg 11b is narrower than the width of the main rod 1, Each of 11a and 11b is configured such that the tip part is formed so that the distance between the tip part becomes narrower toward the tip part, and the inner diameter inside the tip which becomes the through-hole part for sea bolt 12 is slightly larger than the outer diameter of the sea bolt 9. is there.

  The inner end of the scaffolding plate support rod 4 is fitted between the bases of the wide-side leg portions 11a of the hook member 2 having the above-described configuration, and the upper ends of the two strip-like plates 1a and 1b constituting the main rod 1 are hook members 2. The main rod 1, the hook member 2, and the scaffolding plate support rod 4 are overlapped with each other by a single common support shaft (bolt nut) 20 at the overlapping portion. I support. Then, the lower end of the auxiliary rod 3 is fitted between the lower ends of the two strip-like plates 1a and 1b constituting the main rod 1 so that the through-hole 13 is in the horizontal direction. 3 are supported by a support shaft (bolt nut) 21 oriented parallel to the support shaft 20. Accordingly, the two strips 1a and 1b constituting the main shaft 1 are slightly inclined so that the distance between the lower end side and the upper end side becomes narrower. At this time, the auxiliary rod 3 is in a direction parallel to the support shafts 20 and 21.

  As shown in FIG. 1A, when attaching the scaffolding plate support device having the above configuration to the inclined mold 6, the hook member 2 is put on the butter material 8 from above with the diagonally downward posture, and between the leg portions 11a and 11b. The butter material 8 is fitted to the main frame 1 so as to contact the outer side of the inclined mold 6 in the vertical direction. In this state, the U-shaped member 17 of the coupling means 5 is fitted to the auxiliary rod 3 from above so that the scaffolding plate support rod 4 is substantially horizontal, and is inserted through the auxiliary rod 3 from above. The locking pin 18 is inserted together with the retaining shaft support piece 19 over one of the holes 13 and the U-shaped member 17, and the retaining shaft support piece 19 is switched to the hanging position so that the U-shaped member 17, the auxiliary rod 3, Join. In this way, a plurality of scaffold board support devices are arranged at the same level outside the inclined mold frame 6 and the scaffold board 22 may be supported between the substantially horizontal scaffold board support rods 4 of the adjacent scaffold board support devices. .

  As shown in FIG. 1B, when the scaffolding plate support device having the above-described configuration is directly attached on the inclined slope 10 after the inclined form 6 is disassembled and removed, the hook member 2 is rotated approximately 180 degrees to be inclined upward. In this state, a sea bolt 9 projecting from an inclined slope 10 through an anchor is inserted into and inserted into the sea bolt through hole 12 at the tip ends of both legs 11a and 11b of the hook member 2, and the hook member as required. The nut 9a is screwed and fastened to the sea bolt 9 protruding from 2 via a washer, so that the main rod 1 is arranged in contact with the outside of the slope surface 10 in the vertical direction. Thereafter, the same procedure as in the case of using the scaffold board support device outside the inclined mold 6 is performed, and the scaffold board 22 is placed between the scaffold board support rods 4 in the substantially horizontal state of the adjacent scaffold board support device. The plate 22 may be supported.

  In any case, a handrail support column 15 is inserted into the handrail support column support tube 14 of each scaffold board support device and fixed by a handrail support column fixing bolt 16, and a handrail member 23 is installed between the handrail support columns 15. Thus, a temporary scaffold that can safely walk on the scaffold board 22 can be completed.

  The scaffolding plate support device having the above configuration can be folded when not in use. That is, as shown in FIG. 6, the locking pin 18 of the coupling means 5 is pulled out, the U-shaped member 17 is separated from the auxiliary rod 3, and the auxiliary rod 3, the main rod 1, and the scaffolding plate support rod 4 are folded in a zigzag shape. be able to. At this time, both the leg portions 11a and 11b of the hook member 2 are rotated so as to protrude upward from the scaffolding plate support rod 4, and the two U-shaped plates 2a of the hook member 2 protruding downward from the scaffolding plate support rod 4 are provided. By fitting the auxiliary rod 3 between 2b, the bulk of the folded apparatus as a whole can be reduced.

  In addition, the structure of the hook member 2 itself, the attachment structure of the hook member 2 to the main rod 1, and the structure of the coupling means 5 are not limited to those of the above embodiment. For example, a hook member made of a single thick plate is pivotally supported on the outside of the main shaft 1, and a cylindrical member constituting a through hole portion for a sea bolt is fixed to one side surface of the tip portion of the hook member by welding or the like. it can. Further, the inner end portion of the scaffolding plate support rod 4 can be pivotally supported on the side opposite to the side on which the hook member of the main rod 1 is pivotally supported. Of course, a supporting shaft for supporting the scaffold plate support rod 4 may be provided on the main rod 1 separately from the supporting shaft for supporting the main rod 1 and the hook member. Further, the locking pin 18 and an appropriate portion (including the handrail support column support tube 14 and the U-shaped member 17) on the side of the scaffolding plate support rod 4 can be connected with a chain or the like.

Fig. A is a side view showing a state in which the scaffolding plate support device is attached to the inclined mold, and Fig. B is a side view showing a state in which the scaffolding plate support device is attached to the inclined slope after the mold is dismantled and removed. . It is a vertical side view of a scaffold board support device. Fig. A is a left side view of the scaffolding plate support device of Fig. 2, and Fig. B is a right side view thereof. FIG. 3 is an enlarged sectional view taken along line XX in FIG. 2. It is the YY line expanded sectional view of FIG. It is a side view of the state which folded the scaffold board | substrate support apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main rod 1a, 1b Strip plate 2 Hook member 2a, 2b U-shaped plate 3 Auxiliary rod 4 Scaffold plate support rod 5 Coupling means 6 Inclined form frame 7 Formwork body 8 Horizontal flap material 9 Sea bolt 10 Inclined slope 11a, 11b Both leg portions 12 of hook member Through-hole portion 13 for sea bolt Through-hole (coupling means)
14 Handrail support pillar 15 Handrail support 16 Handrail support fixing bolt 17 U-shaped member (coupling means)
18 Locking pin (coupling means)
19 Retaining stopper shaft piece (coupling means)
20, 21 Support shaft (bolt nut)
22 Handrail member

Claims (7)

A main hook, a hook member attached to the upper end of the main hook and engageable with the horizontal flap material of the inclined mold frame, an auxiliary hook pivotally supported on the lower end of the main hook, and an upper end of the main hook A scaffolding plate support device comprising a scaffolding plate support rod whose inner end is pivotally supported and coupling means for coupling the outer end portion of the scaffolding plate support rod to the auxiliary rod so that the coupling position can be changed in the length direction. The hook member has a U-shaped side surface, and a through-hole portion of a sea bolt is provided at each of the tip ends of the parallel leg portions, and at a position inside the through-hole portion of one leg portion. The hook is rotatably supported on the upper end portion of the main rod, and the hook member is changed from an obliquely downward posture in which the hook member can be engaged with the horizontal flap material of the inclined mold frame from above to an upward posture rotated by approximately 180 degrees. The seabor protruding from the inclined surface Wherein fitting the through holes of the legs distal end of the hook member is configured to allow the scaffold board supporting device to.   The hook member has a structure in which two U-shaped plates arranged in parallel are connected at the ends of both leg portions, and the inside of the ends of the two leg portions of the two U-shaped plates is a through-hole portion of the sea bolt. The scaffolding board support device according to claim 1.   The scaffolding plate support device according to claim 1 or 2, wherein the main rod, the hook member, and the scaffolding plate support rod are pivotally supported by one common pivot.   The hook member has a structure in which two U-shaped plates arranged in parallel are connected at the tips of both legs, and the inside of the tips of the inner and outer legs of the two U-shaped plates serves as a through-hole portion of the sea bolt. The inner end portion of the scaffolding plate support rod is fitted between one leg portion of the hook member, and the main rod is constituted by two strip-like plates sandwiching one leg portion of the hook member from the outside. The main rod, the hook member, and the scaffolding plate support rod are pivotally supported by one common support shaft at the overlapping portion thereof, and the hook member is engaged with the horizontal flap material of the inclined mold frame from above. The scaffolding board support device according to claim 1, wherein a butterfly material fitting space is formed between the other leg portion of the hook member and the main rod when in an obliquely downward posture.   The auxiliary rod is pivotally supported by the main rod with its lower end fitted between the two strips of the main rod, and the auxiliary rod and the scaffolding plate support rod are uncoupled. The auxiliary rod, the main rod, and the scaffolding plate support rod are configured to be able to fit the auxiliary rod between two U-shaped plates of the hook member when folded in a zigzag shape. The scaffolding board support device according to 1.   The coupling means is a U-shaped member that is fixed to the outer end of a scaffolding plate support rod and can be fitted on the auxiliary rod, through holes provided in the auxiliary rod at appropriate intervals in the length direction, and the U-shaped member. The scaffolding plate support device according to any one of claims 1 to 5, wherein the scaffolding plate support device is configured to include a locking pin that is detachably inserted between the member and one through hole and includes a shaft support piece for retaining at the tip.   A handrail support tube that protrudes upward at a right angle to the scaffold plate support rod is fixed to the outer end portion of the scaffold plate support rod, and a U-shaped member of the coupling means is provided at the lower end of the handrail support tube. The scaffolding board support device according to claim 6, which is fixed.