JP3019857U - Suspension bracket for overhanging scaffold - Google Patents

Abstract

(57) [Summary] [Purpose] By using the handrail of the overhanging scaffold as a supporting bracket for supporting the overhanging scaffolding plate, the outer end of the overhanging scaffolding is also supported and its supporting strength is improved. Let [Structure] Outer end of the handrail fitting 2 attached to the building 31 of the frame scaffold 3 and facing away from the frame scaffold, and a direction attached to the frame scaffold below the handrail fitting and away from the frame scaffold The hanging metal fitting A is installed between the outer end of the overhanging scaffolding plate 6 facing toward. Lifting bracket A
The lower end of the is provided with an upward recess that engages with the crosspiece of the overhanging scaffold from below. The middle part of the hanging metal fitting A has an inner shaft part 1
A book member 43 and a member having an outer tubular portion 44 that is fitted onto the inner shaft portion so as to be slidable in the axial direction are provided to be expandable and contractable.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention is constructed between a handrail fitting facing away from the frame scaffolding used during construction of a building and an overhanging scaffolding board attached to the underside of the railing scaffolding, The present invention relates to a hanging metal fitting for suspending and supporting an outer end of the projecting scaffolding board on the handrail metal fitting.

[0002]

[Prior art]

 During construction of a building, etc., by providing a bulging scaffold from the framework scaffold toward the temporary lifting device, etc., and blocking the space between the framework scaffolding and the temporary lifting device, etc. It is prevented from falling from between the temporary lifting device.

[0003]

[Problems to be solved by the device]

 However, while the projecting scaffolding plate is projected from the frame scaffolding and the base end is supported by the frame scaffolding, there is no means for supporting the outer end, and the projecting plate is so-called cantilevered. It had been. For this reason, since the supporting strength is not sufficient on the overhanging scaffold, there is a problem in that it is not possible for the worker to secure sufficient safety to ride on this and work.

Further, in order to support the outer end portion of the overhanging scaffold, there is also a means of suspending the outer end portion of the overhanging scaffold from a frame scaffold through a diagonal member. Each time the building was installed, it was necessary to carry out the troublesome work of suspending it with diagonal members and dismantling it. On the other hand, the inventor, having the idea of installing a handrail on such an overhanging scaffold, devised to attach a handrail fitting facing away from the framework scaffolding to the construction site of the framework scaffolding. Then, as a result of further consideration, the inventors arrived at this invention by focusing on supporting the outer end of the above-mentioned scaffolding scaffolding plate by utilizing this overhanging handrail fitting.

Therefore, the object of the present invention is to use the handrail of the overhanging scaffold as a support bracket for supporting the overhanging scaffolding plate so that the outer end of the overhanging scaffold also serves as the supporting bracket. The purpose is to support the handrail and improve its support strength, and its purpose is to facilitate switching between the use state and the non-use state of the overhanging scaffold.

[0006]

[Means for Solving the Problems]

 According to the invention of claim 1, the outer end of the handrail fitting attached to the building of the framework scaffold and facing away from the framework scaffold, and the framework scaffold attached to the framework scaffold below the handrail fitting It is erected between the outer end of the overhanging scaffold plate facing away, and has a connecting part to the handrail fitting at the upper end and a recess for engaging the overhanging scaffold bar from below at the lower end. The outer edge of the scaffold was configured to be hung on the handrail metal fittings to form the hanging metal fittings for the overhanging scaffolding.

According to a second aspect of the present invention, the handrail fitting is attached to the building by a hinge fitting attached to the building of the framework scaffold so as to be horizontally rotatable at the inner end thereof. At the same time, the overhanging scaffold can be pivoted between the horizontal use position and the non-use position in which the outer end portion is raised above the handrail fitting and outside the framework scaffold. It is assumed to be pivotally attached to the framework scaffold. Suspension metal fittings for scaffolding.

According to a third aspect of the present invention, the suspension fitting includes a single member having an inner shaft portion and an outer cylinder portion that is fitted onto the inner shaft portion so as to be slidable in the axial direction. It was made to be expandable and contractable from one member, and both members were provided with fixing means for fixing the relative position of both members in the axial direction. According to a fourth aspect of the present invention, the fixing means of the third aspect comprises a through hole formed in the outer cylinder portion and the inner shaft portion of both members and a stopper inserted into the through hole, and the outer cylinder portion A plurality of through holes are provided at equal intervals in the axial direction in at least one of the inner and inner shafts.

[0009]

[Action]

 According to the invention of claim 1, the upper end connecting portion of the hanging metal fitting is connected to the outer end of the handrail fitting facing away from the framework scaffold, and the outer end of the overhanging scaffold board facing away from the framework scaffold. By connecting the lower end connecting part of the hanging bracket to the outer end of the overhanging scaffold by supporting the handrail fitting through the hanging metal, the overhanging scaffold is supported by the inner end and the outer end. The supporting strength is improved. To attach the hanging bracket to the overhanging scaffold, it is enough to engage the recess with the crosspiece of the overhanging scaffold from below, and also to remove the overhanging scaffold from the overhanging bracket.

According to the invention of claim 2, if the handrail fitting is turned in a direction along the frame scaffold, it can be used as an ordinary frame scaffolding without using the overhanging scaffold. At this time, the handrail fitting is Can be used as a railing for framework scaffolding. Here, if the overhanging scaffolding is also set up in an unused position so that the outer end portion is on the upper side, the overhanging scaffolding will not be an obstacle.

According to the invention of claim 3, the two members are slid to expand and contract the length of the hanging metal fitting in correspondence with the distance between the handrail fitting and the overhanging scaffold, and by the fixing means. By fixing the relative positions of both members, even if the height of the overhanging scaffold changes with respect to the handrail fitting, it is possible to cope with this. According to the invention of claim 4, the fixing of the length by the two members can be easily and surely performed by inserting the stoppers into the holes of both members.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION

 First, the structure of the frame scaffold will be described. Fig. 1 is a side view of the frame scaffold 3 in which the overhanging scaffold is in use, and Fig. 2 is a front view of the frame scaffold 3 in which the overhanging scaffold is not in use. The hinge metal fitting 1 is used in the building 31 of the frame scaffold 3, and the handrail metal fitting 2 can be swiveled in the horizontal direction between the position overhanging the handrail metal fitting 2 on the side far from the frame scaffold 3 and the position along the frame scaffold 3. It is attached to. Further, the overhanging scaffolding plate 6 is attached to the frame scaffolding 3 by means of a hinge 64 so as to be pivotable between a horizontal use position and a non-use position in which the outer end faces upward. A hanging metal fitting A is temporarily provided between the outer end of the handrail fitting 2 and the outer end of the overhanging scaffolding plate 6, so that the outer edge of the overhanging scaffolding plate 6 is supported by the handrail fitting 2. ing. The hanging metal fitting A is composed of a hanging metal fitting 4 and an engaging metal fitting 5 continuous to the lower end thereof, as will be described later.

Next, the hinge fitting 1 for attaching the handrail fitting 2 to the building 31 will be described. 3 is a plan view showing an example of the hinge fitting 1, and FIG. 4 is a front view thereof. The handrail fitting 2 of which an example is shown in FIG. 5 is attached to the hinge fitting 1. In the hinge fitting 1, two flat plates 11 and 12 are pivotally attached by a pivot shaft 13 to form a hinge, and one flat plate 11 is fitted with a hole of an ear portion 21 which forms a base end of the handrail fitting 2. The compound protrusion 14 is provided by a fixing means such as welding. On the other flat plate 12, a clamp 15 that engages with a building 31 of the framework scaffold 3 shown in FIGS. 1 and 2 is attached. In FIGS. 1 and 2, reference numeral 32 denotes a scaffold plate.

A diametrical through-hole 13a is opened in the pivot 13 of the hinge member 1, and a total of four through-holes that form an angle of 90 degrees with each other in the cylindrical pivotally-attached portion of one flat plate 11. 11a, and a pin 16 is fitted into the through hole 11a and the through hole 13a of the pivot 13, which form 180 degrees with respect to each other, and the open / close positions of both flat plates 11 and 12 are indicated by a solid line at 31 An open / close fixing means is provided for fixing the open position and the closed position indicated by the chain line. In this case, the pivot 13 and the other flat plate 12 are fixed by means of welding or the like.

The flat plate 11 provided with the engaging projections 14 is hung from both the front and back sides through the upper end of the flat plate 11 to form an inverted U shape. The locking metal fitting 17 is provided so as to sandwich the ears 21 of the fitted handrail metal fitting 2. That is, a bracket 17a is vertically fixed to the back surface of the flat plate 11 opposite to the surface on which the engaging projection 14 is provided, and the two metal rods constituting the lock fitting 17 are vertically supported to penetrate through the bracket 17a. The two gold bars have a short length on the surface side of the flat plate 11 and are fixed in contact with each other in the upper part, and spread out so as to straddle the engaging projections in the lower part, and the handrail is spread at this expanded part. A holding portion 17b for holding the surface of the ear portion 21 of the metal fitting 2 is formed. On the back side of the flat plate 11, the gold bars are long and spaced apart from each other, and guide portions 17c are formed in parallel with each other. The lock fitting 17 is pulled up and the holding portion 17b thereof is railed. Even when the metal fitting 2 is removed from the ear portion 21, the guide portion 17c of the lock metal fitting 17 remains engaged with the bracket 17a.

The clamp 15 of the hinge fitting 1 is externally fitted and fixed to the building 31 of the frame scaffold 3. The building 31 to which the hinge metal fitting 1 is attached may be on the front stepping side or the rear stepping side of the framework scaffold 3, but here, as shown in FIG. 2, two building areas 31 adjacent to each other on the one side are used. The hinge fittings 1 are attached to the upper and lower sides, respectively, and one handrail fitting 2 is attached to each building 31 using this. The hinge metal fitting 1 used for one building 31 is used in the form shown in FIGS. 3 and 4, and the hinge metal fitting 1 used for the other building 31 is the one shown in FIGS. After only the metal fitting 17 is turned upside down, the guide portion 17c is inserted into the bracket 17a from above and used.

At the ear portion 22 which forms the tip of the handrail fitting 2, the ear portion 41 at the upper end of the hanging fitting 4 shown in FIG. Connect with the connection tool of. The handrail fitting 2 has an adjustable length between the lower end ear portion 42 and the upper end ear portion 41. That is, it has one member 43 having an inner shaft portion 43a and one member 44 having an outer cylinder portion 44a that is slidably fitted onto the inner shaft portion 43a in the axial direction. The members 43 and 44 are made to be expandable and contractable, and the both members 43 and 44 are provided with fixing means 45 for fixing the relative positions of both members in the axial direction. This fixing means 45 comprises a through hole 45a opened in the outer cylindrical portion 44a and the inner shaft portion 43a of both members 43 and 44, and a stopper 45b inserted into this through hole. A plurality of through holes 45a are provided at equal intervals in the axial direction, and one through hole is provided in the outer cylinder portion 44a. However, a plurality of through holes are provided in the outer cylinder portion 44a as described above, and the inner shaft portion is formed. One may be provided at 43a. Although the inner shaft portion 43a has a tubular shape, it may be made of a solid rod material. Further, if only the outer tubular portion 44a of the member 44 has a tubular shape, the other parts are It may be solid. Specifically, the stopper 45b is composed of a bolt penetrating the through hole 45a and a nut screwed to prevent the bolt from coming off. The ears 41, 42 are formed in a plate shape by crushing the ends of the members 43, 44, and the ears 41, 42 themselves have a conventional structure.

The engaging metal fitting 5 shown in FIG. 7 is attached to the ear portion 42 at the lower end of the hanging metal fitting 4. The hanging engagement metal fitting 5 includes a first chevron member 51 to which the ear portion 42 of the hoisting metal fitting 4 is connected by a connecting tool such as a bolt and nut, and a second chevron member 52 fixed to the first chevron member 51 by welding or the like. And a hook member 53 fixed thereto by welding or the like. A concave portion 54 having front and rear surfaces parallel to each other is formed between the first and second chevron-shaped members 51 and 52. The frame-shaped crosspiece 61 of the overhanging scaffolding plate 6 shown in FIGS. 8A and 8B can be fitted therein. If the engaging metal fitting 5 is such that the connecting portion with the hanging fixture 4 and the gap concave portion and the hook member 53 are formed, other metal plates are used instead of the chevron-shaped members 51 and 52. It can also be formed by bending or welding. The hook member 53 is for hanging the hanging fitting 4 on a part of the handrail fitting 2 when it is not used.

The hanging metal fitting 4 and the engaging metal fitting 5 connected to the lower end of the hanging metal fitting 4 constitute a hanging metal fitting A which is one embodiment of the present invention. The overhanging scaffolding plate 6 is formed by stretching a metal plate 63 having a large number of holes 62 on the upper surface of a crosspiece 61 forming a rectangular frame, which is a known one in itself, but here is a hinge. It is attached to the framework scaffold 3 by means of metal fittings 64 so as to be openable and closable, and has a unique embodiment. That is, as shown in FIGS. 1 and 2, the long side of the overhanging scaffolding plate 6 is arranged along the frame scaffolding 3, one end is fixed to the building 31 of the frame scaffolding 3 by the clamp 64a, and the other end is horizontal. The hinge scaffold 64 configured to be pivotable about an axis is fixed to the pivotable other end 64b of the scaffolding plate 6, and is disposed between a horizontal use position and an upper vertical non-use position. The vertical state can be maintained by a pin, a hook, or other commonly used engaging means with the building 31. Further, in the horizontal state, by fitting the crosspiece 61 of the overhanging scaffolding plate 6 into the recess 54 of the engaging metal fitting 5 shown in FIG. 7, the outer end of the overhanging scaffolding plate 6 has the hanging metal fitting A, that is, the engaging metal. It is supported by the handrail fitting 2 via the tool 5 and the hanging fitting 4.

At positions where piers and spring scaffolds may be crossed from the framework scaffolds 3, the handrail fittings 2 are attached to the two adjacent construction sites 31 of the framework scaffolds 3 using the hinge fittings 1, respectively. Install it. The two handrail fittings 2 are in a closed state as shown in FIG. 2, and face the direction along the framework scaffold 3. This closed state is held by the pin 16 of the hinge fitting 1, but if both handrail fittings 2 are fastened to each other near the tips of the handrail fittings 2 by a simple fastening means such as a string or a wire, The closed state can be made more reliable. At this time, the ears 22 at the tips of the handrail fittings 2 are connected to the ears 41 at the upper ends of the hanging fittings 4 that make up the hanging fitting A, and the ears 42 at the lower end of the hanging fittings 4 are engaged with the engaging metal. When the tool 5 is connected and the hook member 53 of the engaging fitting 5 is hung on a part of the handrail fitting 2, the hanging fitting 4 is prevented from swinging. Further, the projecting scaffolding plate 6 is attached to the building 31 by using the hinge metal fittings 64, and the projecting scaffolding plate 6 is kept in the vertical state by the engaging means in the unused position rotated upward. deep.

In this state, the two closed handrail fittings 2 protect workers passing on the scaffolding plate 32 of the framework scaffold 3 in the same manner as a conventional handrail, but it is necessary to provide a crossing pier or a springboard scaffolding. If this occurs, remove the pin 16 from the flat plate 11 indicated by the chain line in FIG. 3 and, if the handrail fittings 2 are fastened together, release the fastening and then swivel to the position indicated by the solid line. Then, at this position, the pin 16 is inserted into another hole 11a that is offset by 90 degrees. By turning the flat plate 11 of the hinge fitting 1, the handrail fitting 2 is turned and opened in a direction away from the framework scaffold 3. Next, the overhanging scaffolding plate 6 is disengaged by a pin or other engaging means for maintaining the vertical state and swung to the horizontal state while the hinge metal fitting 64 is swung, and the hook member of the engaging metal fitting 5 is also rotated. After removing the lower end of the hanging metal fitting 4 from the handrail metal fitting 2, the engaging metal fitting 5 is moved to the outer lower part of the overhanging scaffolding board 6, and the crosspiece 61 of the overhanging scaffolding board 6 is fitted into the gap 54. .

Thus, the overhanging scaffolding plate 6 is projected at approximately the same height as the scaffolding plate 32 of the framework scaffolding 3, and the handrail fittings 2 are located on both sides in the longitudinal direction of the scaffolding plate 32. Is supported by the handrail fitting 2 through the hanging fitting A composed of the hanging fitting 4 and the engaging fitting 5, the handrail fitting 2 acts as a support bracket for the overhanging scaffolding plate 6, The overhanging scaffolding plate 6 will be supported with sufficient strength to allow workers to pass or ride on it as a scaffolding for jumping to the pier on the side of the building or a hoisting machine installed.

In addition, when moving the pier or the springboard scaffolding to another position, after returning the overhanging scaffolding plate 6, the handrail fittings 2 and the like in the positions used so far, to the new position. And make a foothold. Therefore, first, the overhanging scaffolding plate 6 is disengaged from the engaging metal fitting 5, swiveled to the above-mentioned unused position and engaged with the building 31 of the framework scaffolding 3 by the engaging means, while the hook member of the engaging metal fitting 5 is engaged. Work to pass the handrail metal fitting 2 on the scaffolding board 32 by hanging 53 on the proper position of the handrail metal fitting 2 so that the hanging metal fitting A is not used and closing the handrail metal fitting 2 in the reverse order of the above. Restored as a handrail for members. On the other hand, at the new position, the handrail fitting 2 is opened by the procedure as described above, the overhanging scaffolding plate 6 is turned to the use position, and the lower end of the hanging metal fitting A is hung on the overhanging scaffolding plate 6. It can be used as a crossing pier or a springboard scaffolding.

FIG. 9 shows a case where the height position of the overhanging scaffolding plate 6 is set to be lower than the scaffolding plate 32 of the frame scaffolding 3 by lowering the mounting position of the hinge metal fitting 64 to the building 31. It is a figure. In this case, the hanging metal fitting 4 shown in FIG. 6 among the hanging metal fittings A is extended, and its length is fixed by the lock member 45. Thus, the length of the hanging bracket A can be adapted to the change in the height position of the overhanging scaffolding plate 6. Although not shown, it is needless to say that when the height position of the overhanging scaffolding plate 6 is higher than that of the scaffolding plate 32, the length of the hanging metal fitting A may be reduced.

As described above, according to this embodiment, since the handrail fittings 2 are attached to the two adjacent building sites 31, respectively, the scaffolding plate 32 of the framework scaffolding 3 is connected to the building side or the building side. For workers moving to the distant side using the overhanging scaffolding plate 6, safety is enhanced because the handrail is open and there are handrails on the left and right, and the hanging bracket A is hung from each handrail bracket 2. Since the outer ends of the scaffolding plate 6 at both ends in the longitudinal direction can be supported, the strength of supporting the overhanging scaffolding plate 6 on the frame scaffolding 3 becomes large, and thus the overhanging scaffolding plate 6 must also be loaded with a sufficient load. Will be possible.

[0026]

[Effect of device]

 According to the invention of claim 1, the outer end of the overhanging scaffold is supported by the handrail fitting through the hanging fitting, so that the inner end of the overhanging scaffold is the frame scaffold and the outer end is the hanging fitting. It is supported by the handrail metal fittings via and the supporting strength is improved. In addition, it is sufficient to attach the hanging bracket to the overhanging scaffold by simply engaging the recess with the crosspiece of the overhanging scaffold from below, and by removing this, the overhanging scaffold can be released from the overhanging bracket. Therefore, it is possible to easily perform the work at the time of transition between the use state and the non-use state of the overhanging scaffold.

According to the invention of claim 2, in addition to the effect of claim 1, if the handrail fitting is swiveled in the direction along the frame scaffold, it can be used as a normal frame scaffold without using an overhanging scaffold. At this time, the handrail fitting can be used as a handrail for the framework scaffolding. Here, if the overhanging scaffold is also set up in an unused position so that the outer end of the overhanging scaffold is on the upper side, the overhanging scaffold will not be an obstacle.

According to the invention of claim 3, in addition to the effect of claim 1, the two members are slid to make the length of the hanging metal fitting correspond to the distance between the handrail metal fitting and the overhanging scaffold. By expanding and contracting and fixing the relative positions of the two members by the fixing means, it is possible to easily cope with changes in the height of the overhanging scaffold with respect to the handrail fitting. According to the invention of claim 4, in addition to the effect of claim 3, the fixing of the length by the two members can be easily and surely performed by inserting the stoppers into the holes of both members. .

[Brief description of drawings]

FIG. 1 is a side view of a frame scaffold showing a usage state of a hanging metal fitting.

FIG. 2 is a front view of the frame scaffolding showing a non-use state of the hanging bracket.

FIG. 3 is a plan view of a hinge fitting.

FIG. 4 is a front view of a hinge fitting.

FIG. 5 is a front view of the handrail fitting.

FIG. 6 (a) is a front view of a hanging metal fitting among the hanging metal fittings,
(B) is a partial bottom view of the hanging metal fitting among the hanging metal fittings.

FIG. 7 (a) is a plan view of an engaging metal fitting of the hanging metal fittings,
(B) is a front view of the engagement metal fitting of the suspension metal fittings.

8A is a plan view of an overhanging scaffolding plate, FIG. 8B is a front view of the overhanging scaffolding plate, and FIG. 8C is a plan view showing an example of a hinge fitting for attaching the overhanging scaffolding plate to a building.

FIG. 9 is a front view of the framework scaffolding showing the usage state of the hanging metal fittings in a state where the overhanging scaffolding plate is lowered.

[Explanation of symbols]

 A Suspension metal fitting 1 Hinge metal fitting 2 Handrail metal fitting 21 Ear part (inner end part) 22 Ear part (outer end part) 3 Framework scaffold 31 Construction site 32 Scaffolding plate 4 Suspension metal fitting 43 Member 43a Inner shaft part 44 Member 44a Outer cylinder part 45 Fixing Means 45a Through Hole 45b Stopper 5 Engagement Fitting 53 Hook Member 54 Recess 6 Retractable Scaffolding Board 61 Crosspiece 64 Hinge Fitting

Claims (4)

[Scope of utility model registration request] 1. An outer end of a handrail fitting attached to a construction site of the framework scaffold and facing away from the framework scaffold, and a direction attached to the framework scaffold below the handrail fitting and away from the framework scaffold. It is installed between the outer edge of the facing scaffolding board and has a connecting part to the handrail fitting at the upper end and an upward recessed part at the lower end that engages with the crosspiece of the overhanging scaffold from below. A hanging bracket for overhanging scaffolds, characterized in that the outer end of the above is configured to be hung on a handrail bracket. 2. The handrail fitting is attached to the building by a hinge fitting attached to the building of the framework scaffold so as to be horizontally rotatable at the inner end thereof, and the overhanging scaffold. Is pivotally attached to the frame scaffold so as to be pivotable between the horizontal use position and the non-use position which is set up so that the outer end portion is on the lower side of the handrail fitting and outside the frame scaffold. The hanging metal fitting for an overhanging scaffold according to claim 1, wherein 3. A member having an inner shaft portion and a member having an outer cylinder portion that is fitted onto the inner shaft portion so as to be slidable in the axial direction, and are expandable and contractible. 2. The hanging metal fitting for an overhanging scaffold according to claim 1, wherein both members are provided with fixing means for fixing the relative positions of both members in the axial direction. 4. The fixing means includes a through hole formed in the outer cylinder portion and the inner shaft portion of both members and a stopper inserted into the through hole, and at least the outer cylinder portion and the inner shaft portion. 4. The hanging metal fitting for an overhanging scaffold according to claim 3, wherein a plurality of through holes are formed in one of them at equal intervals in the axial direction.