JP2022036518A - Joint device for scaffolding components in suspended scaffolding - Google Patents

Abstract

[Problem] To provide a joint device for scaffolding components used to construct a suspended scaffold. [Solution] For a suspended scaffold constructed in a suspended state from an existing structure, this joint device connects plate-shaped scaffolding components arranged in a row in the extension direction, and comprises a socket (7, 29) provided at one end of a frame (4, 27) fixed to the scaffolding components in the extension direction, and a plug (8, 30) provided at the other end, and is configured so that the plug can be inserted into the socket between adjacent scaffolding components, and a temporary placement means (43) is provided for placing the plug at a position facing the socket so that it can be inserted. [Selected Figure] Figure 17

Description

The present invention relates to a joint device for scaffolding components such as scaffolding plates and side wall panels for constructing a suspended scaffold.

Conventionally, when constructing or renovating an existing structure such as a highway or a bridge at a high place, a suspended scaffold extending along the existing structure has been constructed.

The hanging scaffolding board for constructing the hanging scaffolding (hereinafter, simply referred to as “scaffolding board 1”) is generally configured as shown in FIGS. 1 to 3.

The scaffolding plate 1 may be referred to as a first girder side frame 3A and a second girder side frame 3B made of square pipe members arranged in parallel at a distance (when both are not distinguished, they are simply referred to as "girder side frame 3". ) To support the floor material 2, and at both ends of the pair of gable-side frames 3A and 3B, a first wife-side frame 4A and a second wife-side frame 4B (both) made of a circular pipe material, respectively. When no distinction is made, it may simply be referred to as "gable side frame 4"). Further, both ends of the center frame 5 made of a circular pipe material arranged on the lower side of the floor material 2 are connected to the gable side frame 4.

By the way, as typified by an expressway, the extension direction of an existing structure is not necessarily limited to a straight line direction, but includes a curved direction that draws a curve. Therefore, it is necessary to construct the suspended scaffolding in the corresponding direction.

Therefore, the gable side edges of the adjacent scaffolding plates 1 are connected to each other by a joint device so that the distance can be adjusted. The gable side frame 4 is configured so that both end portions do not protrude from the outer surfaces of the first girder side frame 3A and the second girder side frame 3B, and the first end portion 6a of both end portions is the first girder side frame 3A. The socket 7 is formed by opening the outer surface of the second end portion 6b, and the plug 8 is formed by projecting the insertion member projecting from the second end portion 6b to the outside of the outer surface of the second gable side frame 3B. A joint device is configured in which a plug 8 is slidably inserted into a socket 7 between adjacent scaffolding plates 1, 1 and gable-side frames 4, 4.

At this time, the socket 7 and the plug 8 fitted to each other are held in place by inserting the connecting pin 9 in a penetrating state, but the insertion hole of the plug 8 into which the connecting pin 9 is inserted is a long hole 10. The plug 8 and the socket 7 are configured to allow sliding within the range of the elongated hole 10, whereby the distance between the adjacent scaffolding plates 1 and 1 can be adjusted.

When constructing a suspended scaffold, the scaffold plate 1 is arranged along the existing structure by alternately connecting the socket 7 and the plug 8, and is suspended under the existing structure by a cord 11 such as a chain. Will be done. In order to enable such a chain or the like to be suspended by a cord 11, window holes 12 facing the center frame 5 are provided in the floor material 2 at predetermined intervals, and the frame 5 is provided with window holes 12 at predetermined intervals. , A hanging metal fitting 13 facing each window hole 12 is provided. Therefore, by connecting the cord 11 to the hanging metal fitting 13, the frame 5 is suspended via the metal fitting 13.

Japanese Patent No. 6366472 Japanese Patent No. 6426917 Japanese Patent No. 6663726

In the suspended scaffolding, the floor surface is composed of the floor material 2 of the scaffolding boards 1 arranged in a row, and the scaffolding structure is constructed on the floor material 2 with columns, cloth materials, single pipes and the like. Therefore, the scaffolding plate 1 is made of steel to be rigid and heavy.

Therefore, in an environment where the scaffolding plate 1 having a large weight is shaken when it receives a strong wind or the like while being suspended by the cord 11, the work of connecting the plug 8 of the joint device while inserting it into the socket 7 is performed. It is extremely unstable and complicated, and it imposes a great deal of effort on the worker.

Therefore, it is desired that the joint device improves the workability when connecting the scaffolding plates by making improvements.

The suspended scaffolding also provides a floor for construction or refurbishment work, but with open lateral space.

Therefore, noise during construction is emitted to the outside, which causes annoyance to neighbors. Moreover, there is a danger that the worker will fall from the open space on the side, and there is a danger that tools and other articles will fall to the ground.

Therefore, it is preferable to close the side space with the side wall panel, and it is desirable that the side wall panel is as light as possible and is excellent in productivity.

Further, in the side wall panel, it is necessary to connect adjacent side wall panels by a joint device, and it is desired to provide a joint device having improved connection workability as in the case of a scaffold plate.

The present invention provides a joint device for scaffolding constituent members in a suspended scaffold that solves the above problems, and the present invention is configured as a means thereof in an extension direction with respect to a suspended scaffold constructed in a suspended state on an existing structure. It is a joint device that connects plate-shaped scaffolding components sequentially arranged in a row to each other, and is a socket provided at one end of a frame fixed to the scaffolding component in the extension direction, and the other end. It consists of a plug provided in the portion, and is configured to insert the plug into the socket between adjacent scaffold members, and the plug is placed at a position where the plug can be inserted into the socket. The point is that a temporary storage means for placing the scaffolding is provided.

In one embodiment of the present invention, the scaffolding constituent members have a gable-side frame erected at both ends of a first-girder-side frame and a second-girder-side frame arranged in parallel at a distance, respectively, and an extension direction of the gable-side frame. The gable-side frame is configured to be arranged in a row, and the gable-side frame has the first end portion of both ends arranged so as not to protrude from the outer surfaces of the first-girder-side frame and the second-girder-side frame. A socket is formed by opening the socket at a position inside the outer surface of the frame on the first girder side, and the insertion member projecting from the second end is projected outward from the outer surface of the frame on the second girder side. Thereby forming a plug, the socket of the gable side frame is fixed to the first gable side frame via a bracket, and is provided so as to be located between the socket and the outer surface of the first gable side frame. The support plate of the bracket constitutes a temporary placement means.

At that time, it is preferable that the temporary placement means includes a guide support portion that aligns the center of the mounted plug with the center of the socket.

In another embodiment of the present invention, the scaffolding component has a gable-side frame made of a pipe material erected at both ends of a first-girder-side frame and a second-girder-side frame arranged in parallel at a distance. It is configured to be arranged in a row in the extension direction of the side frame, and the gable side frame is among both ends arranged so as not to protrude from the outer surfaces of the first girder side frame and the second gable side frame. A socket is formed by the open end portion constituting the first end portion, and a plug is formed by projecting an insertion member projecting from the second end portion to the outside of the outer surface of the second gable side frame. The first end portion of the gable side frame is located inside the outer surface of the first gable side frame by cutting out the open end portion to form a socket and extends from the socket. Temporary storage means are composed of cutout pieces.

According to the present invention, when scaffolding constituent members are arranged in a row in a suspended scaffolding and the plugs of the joint device are connected by inserting the plugs of the joint device into the sockets between the adjacent scaffolding constituent members, the tip portion of the plug is temporarily placed. Since it can be placed on the floor and deposited, the connection work becomes easy.

It is a perspective view which shows the scaffolding board in the conventional suspension scaffolding. It is a perspective view which shows the connection method of the conventional scaffolding board. It is a perspective view which shows the suspension scaffolding constructed by connecting the conventional scaffolding plates. It is a perspective view which shows the side wall panel with respect to one Embodiment of this invention. Regarding the frame of the side wall panel, (A) is a cross-sectional view showing a girder side frame and a mold material constituting a crosspiece frame, and (B) is a perspective view showing a girder side frame and a middle rail frame in an disassembled state. It is a perspective view which shows the center rail frame and the joint frame in the disassembled state. It is a perspective view which shows the method of assembling the center rail frame which attached and integrated the joint frame with respect to the girder side frame. It is a perspective view which shows the state which attached the joint frame and integrated the center rail frame with respect to the girder side frame. It is a perspective view which shows the method of assembling the 1st rail frame after fitting a panel plate to the girder side frame which assembled the middle rail frame. 9 is an enlarged view of the first crosspiece frame and the girder side frame in FIG. 9. It is a perspective view which shows the method of attaching the 1st wife side frame after assembling the 1st crosspiece frame to the girder side frame. 11 is an enlarged view of the first gable side frame and the gable side frame in FIG. It is a perspective view which shows the 1st gable side frame provided with a joint device. It is a perspective view which shows the 1st gable side frame from the opposite side. It is a perspective view which shows the state which the 1st wife side frame is attached to the girder side frame. It is a perspective view which shows the state which the 2nd wife side frame is attached to the girder side frame. It is a perspective view which shows the method of connecting adjacent side wall panels to each other with respect to a joint device. Regarding the operation of the joint device, (A) is a cross-sectional view showing a state in which the plug is placed on the temporary placing means, and (B) is a perspective view showing a state in which the plug is inserted into the socket. An additional embodiment of the joint device is shown, (A) is a perspective view, and (B) is a sectional view showing an operation. It is a perspective view which shows the state which the side wall panel is erected on the edge of the scaffolding board in the constructed suspension scaffolding with respect to the use state of the side wall panel. Regarding another embodiment of the present invention, a scaffolding plate provided with a joint device is shown, (A) is a perspective view showing the scaffolding plate, and (B) is provided on the end side frame with respect to each other of adjacent scaffolding plates. It is a perspective view which shows the method of connecting with the joint device. Regarding still another embodiment of the present invention, a scaffolding plate provided with a joint device is shown, (A) is a perspective view showing the scaffolding plate, and (B) is provided on the end side frame with respect to each other of adjacent scaffolding plates. It is a perspective view which shows the method of connecting by the joint device.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

As described above, the suspended scaffolding is constructed by arranging plate-shaped scaffolding plates in a row, and provides a floor surface by connecting adjacent scaffolding plates to each other by a joint device. At this time, it is desirable that the side space of the floor surface is closed by the side wall panel. The side wall panels shall be lined upright along the gable edge of the scaffolding board to provide a continuous wall surface by connecting adjacent side wall panels to each other with a joint device, similar to the scaffolding board. Is preferable.

As described above, the joint device can be widely implemented for scaffolding plates, side wall panels, and other plate-shaped scaffolding constituent members arranged in an extension direction in a suspended scaffolding. Therefore, the joint device according to the present invention includes a side wall panel (FIGS. 4 to 20) described with reference to FIGS. 4 to 20 and a scaffolding plate (FIGS. 21 and 22) described with reference to FIGS. 21 and 22. ), Please understand that it can be applied to any scaffolding component as needed.

(Wall panel)
4 to 20 show the side wall panel 20. As shown in FIG. 20, the side wall panels 20 are arranged in an upright position along the gable-side edge of the scaffolding plate 1 of the suspended scaffolding that provides a continuous floor surface, and the side wall panels 20 and 20 are adjacent to each other. A continuous wall surface is provided by connecting the spaces with a joint device.

As shown in FIG. 4, the side wall panel 20 may be referred to as a first girder side frame 21A and a second girder side frame 21B arranged in parallel at a distance (when they are not distinguished, they are simply referred to as "girder side frame 21". ), The middle rail frame 22 erected in the middle portion of the double girder side frames 21A and 21B in the longitudinal direction, and the erection in the vicinity of both ends of the double girder side frames 21A and 21B (the portion slightly inward from both ends). A rectangular frame is formed by the first crosspiece frame 23A and the second crosspiece frame 23B (sometimes referred to simply as "crosspiece frame 23" when the two are not distinguished), and the panel plate 24 is fitted in the frame. ing.

The panel plate 24 may be configured to fit one panel plate 24 into one window-shaped opening surrounded by a pair of girder side frames 21 and a crosspiece frame 23, but in the case of the illustrated embodiment. Since the joint frame 25 is overlapped and fixed to the center rail frame 22 to form two window-shaped openings divided by the joint frame 25, two first panels are formed in each window-shaped opening. The plate 24A and the second panel plate 24B are fitted together.

The girder side frame 21 and the center rail frame 22 are connected by a connecting metal fitting, and the girder side frame 21 and the rail frame 23 are connected by a connecting metal fitting. These connecting metal fittings have different nut mounting positions depending on the orientation of the mounting direction, but since they are substantially the same metal fittings, they are indicated by the same reference numerals in the drawings, and are hereinafter simply referred to as connecting metal fittings 26. do.

As shown in FIGS. 6 and 10, the connecting metal fitting 26 is orthogonal to the girder side frame 21 and the first fixing piece 26a extending along the inside of the girder side frame 21 by bending the strip-shaped metal plate. The second fixed piece 26b is arranged in an L shape, and is reinforced by straddling the continuous piece 26c on both the fixed pieces 26a and 26b. In the case of the illustrated embodiment, the first fixing piece 26a is provided with a nut 26A for fastening the bolt in advance by caulking or the like. At this time, the nut 26A may be formed by press-molding a tubular portion on the fixing piece 26a and tapping a female screw. The connection method and connection structure using the connection fitting 26 will be described later.

In a state where the panel plate 24 is fitted to the rectangular frame structure as described above, the first wife side frame 27A and the second wife side frame are attached to both ends of the first gable side frame 21A and the second gable side frame 21B. 27B (when the two are not distinguished, it may be simply referred to as "gable side frame 27") is erected. In order to connect the gable side frame 27 to the ends of the first girder side frame 21A and the second girder side frame 21B, the first bracket 28A and the second bracket 28B (when they are not distinguished, they are simply referred to as "bracket 28", respectively. In some cases) is provided.

As shown in FIGS. 12 to 14, the bracket 28 has a face plate portion 28a attached to the end surface of the girder side frame 21 by bending a metal plate, and the bracket 28 protrudes in the extension direction of the girder side frame 21. A support plate portion 28b that supports the end portion of the side frame 27 is formed, and the support plate portion 28b is fixed to the peripheral surface of the gable side frame 27 by welding or the like. A fixing piece 28c is fixed to the back surface of the face plate portion 28a by welding or the like, and the fixing piece 28c is configured to extend along the inside of the girder side frame 21. In the case of the illustrated embodiment, the fixing piece 28c is previously equipped with a nut 28A for fastening a bolt by caulking or the like. At this time, the nut 28A may be formed by press-molding a tubular portion on the fixing piece 26c and tapping a female screw. The connection method and connection structure using the bracket 28 will be described later.

The end frame 27 is configured so that both ends do not protrude from the outer surfaces of the first girder side frame 21A and the second girder side frame 21B, and the first end portion 27a of both ends is the first girder side frame 21A. The socket 29 is formed by opening in the vicinity of the outer surface of the second gable, and the plug 30 is formed by projecting the insertion member projecting from the second end portion 27b to the outside of the outer surface of the second gable side frame 21B. A joint device is configured in which the plug 29 is slidably inserted into the socket 30 between the adjacent side wall panels 20 and 20 and the gable-side frames 23. The socket 29 and the plug 30 inserted into each other are held in place by inserting the connecting pin 31 in a penetrating state. At this time, the insertion hole of the plug 30 into which the connecting pin 31 is inserted is made into a long hole 32a. This allows the plug 30 and the socket 29 to slide.

(Profile material)
Of the girder side frame 21, the middle rail frame 23, and the rail frame 23, at least the first girder side frame 21A and the second girder side frame 21B, and the first rail frame 23A and the second rail frame 23B have the same mold material. It is formed by 33. The mold material 33 constitutes a hollow long body by extrusion molding of aluminum or the like, and as shown in FIG. 5A, the fitting groove 33a and the holding groove 33b are arranged side by side at the inner side. There is. As will be described later, the fitting groove 33a is provided for slidably fitting the first fixing piece 26a of the connecting metal fitting 26, and for inserting and fitting the fixing piece 28c of the bracket 28. It is provided in. The holding groove 33b is provided to hold the edge portion of the panel plate 24 in a fitted state.

In the case of the illustrated embodiment, the fitting groove 33a is formed by recessing the inner side wall of the mold material 33, and the holding groove 33b is formed between a pair of ribs 33c and 33c protruding from the inner wall of the mold material 33. Has been done.

Further, the mold member 33 is formed by recessing the outer wall as shown in the drawing to form a storage groove 33d for accommodating the head of the bolt for fixing the connecting metal fitting 26 and the bracket 28.

(Installation of the middle rail frame)
As shown in FIGS. 5 to 8, the first girder side frame 21A and the second girder side frame 21B are connected in a state of being arranged in parallel at a predetermined interval by erection of the middle rail frame 22 in the intermediate portion. Will be done.

As described above, the joint frame 25 is polymerized and fixed to the center rail frame 22. The joint frame 25 has a flat hollow cylindrical long body formed by extrusion molding of aluminum or the like, and is for fitting and holding the edges of the first panel plate 24A and the second panel plate 24B on both sides. A holding groove 25a is formed.

The joint frame 25 constitutes a hollow cylindrical body having upper and lower walls, and as shown in FIG. 6, the upper side wall is set as a center rail by driving the rivet 34 through the window hole 25b formed in the lower side wall. It is fixed to the frame 22.

As will be described later, when the side wall panel 20 is arranged along the edge of the scaffolding board on the end side of the suspension board and is in an upright position, the center rail frame 22 is placed on the scaffolding board. It has a support function to hold the upright posture of the side wall panel 20 by fixing it to the structure constructed in the scaffolding. The screw means 36 is provided.

In the case of the illustrated embodiment, the center rail frame 22 is formed of a metal pipe material having necessary and sufficient strength for the support function, and a tubular piece having a female screw formed is inserted into the central portion in the longitudinal direction and welded. The female screw means 36 is provided by fixing with or the like. Although the metal pipe material is shown as a pipe material having a rectangular cross section, a pipe material having a circular cross section may be used.

Before erection on the girder side frame 21, a total of four connecting metal fittings 26 are arranged with both ends of the center rail frame 22 sandwiched between them, and are fixed by bolts and nuts, respectively. The pair of connecting metal fittings 26 arranged at each end are sandwiched by passing bolts through and fastening nuts while sandwiching the ends of the middle rail frame 22 by the second fixing pieces 26b and 26b. Be stuck.

As a result, the center rail frame 22 integrally includes the joint frame 25 and constitutes the center rail unit body 22U provided with the connecting metal fittings 26, and is erected as a unit on the first girder side frame 21A and the second girder side frame 21B. can do.

At the time of erection, the first fixing piece 26a of the four connecting metal fittings 26 provided on the center rail unit body 22U is fitted into the fitting groove 33a of the mold material 33 of the first girder side frame 21A and the second girder side frame 21B. As shown in the figure, the bolt 37 is inserted and fastened to the nut 26A of the first fixing piece 26a to be fixed.

Bolt insertion holes 38 are formed in advance at predetermined positions in the first girder side frame 21A and the second girder side frame 21B. Therefore, by positioning the bolt insertion hole 38 and the nut 26A of the first fixing piece 26a, the center rail unit body 22U can be erected at a predetermined position on the girder side frame 21.

(Insert panel plate)
As a result, an H-shaped frame structure is formed by the first girder side frame 21A, the second girder side frame 21B, and the center rail unit 22U. Therefore, as shown in FIG. 9, the panel plate 24 is fitted between the first girder side frame 21A and the second girder side frame 21B. The pair of panel plates 24A and 24B are fitted by inserting both side edges of the panel plates into the holding grooves 33b of the mold material 33 from both ends of the first girder side frame 21A and the second girder side frame 21B. The edge of the panel plate facing the crosspiece unit 22U is fitted into the holding groove 25a of the joint frame 25.

(Installation of crosspiece frame)
After the panel plate 24 is fitted, the crosspiece frame 23 is erected in the vicinity of both ends of the first girder side frame 21A and the second girder side frame 21B. 9 and 10 show a method of erection of the first crosspiece frame 23A, but the second crosspiece frame 23B is also erected in the same manner.

As shown in FIGS. 9 and 10, the crosspiece frame 23 is formed by cutting the mold material 33 to a length that matches the distance between the first girder side frame 21A and the second girder side frame 21B, and both ends. A connecting metal fitting 26 is provided on the portion. The connecting metal fitting 26 is fixed by fitting the second fixing piece 26b at the end of the crosspiece frame 23 into the fitting groove 33a, penetrating the bolt, and fastening the nut.

By fixing the connecting metal fitting 26 to the crosspiece frame 23 in advance in this way, the first fixing piece 26a of the connecting metal fitting 26 extends toward the inside of the end portions of the first girder side frame 21A and the second girder side frame 21B. Placed in. Therefore, when the first fixing piece 26a is inserted into the fitting groove 33a of the girder side frame 21 and slid, and the crosspiece frame 23 is moved to a position where it abuts on the edge of the panel plate 24, the holding groove of the crosspiece frame 23 is formed. The edge of the panel plate 24 is fitted and held in 33b. In this state, the bolt 39 is inserted through the first girder side frame 21A and the second girder side frame 21B and fastened to the nut 26A to be fixed.

At this time, bolt insertion holes 40 are formed in advance in the first girder side frame 21A and the second girder side frame 21B, and when the edge portion of the panel plate 24 is fitted into the holding groove 33b of the crosspiece frame 23, The nut 26A of the second fixing piece 26b is configured to match the bolt insertion hole 40.

(Mounting the gable frame)
After the crosspiece frame 23 is erected, the gable side frame 27 is mounted on the ends of the first girder side frame 21A and the second girder side frame 21B. 11 and 12 show a method of mounting the first wife-side frame 27A, but the second wife-side frame 27B is also mounted in the same manner.

As described above, the end frame 27 has brackets 28 fixed to both ends in advance by welding or the like, and the distance between the first bracket 28A and the second bracket 28B is such that the fixed pieces 28c and 28c are the first digits. It is set to be fitted into the fitting grooves 33a and 33a of the side frame 21A and the second girder side frame 21B.

Therefore, as shown in FIGS. 11 and 12, and the fixing pieces 28c and 28c of the first bracket 28A and the second bracket 28B are the ends of the first girder side frame 21A and the second girder side frame 21B, respectively. The portion is inserted into the fitting grooves 33a and 33a of the mold material, the face plate portion 28a is brought into contact with the end portion of the girder side frame 21, and in this state, the bolt 41 is inserted through the girder side frame 21 and fastened to the nut 28A. It sticks.

At this time, bolt insertion holes 42 are formed in advance in the first girder side frame 21A and the second girder side frame 21B, and the fixed piece is in a state where the face plate portion 28a is in contact with the end portion of the girder side frame 21. The nut 28A of the 28c is configured to fit into the bolt insertion hole 42.

(Significance of side wall panel)
In the side wall panel 20 configured as described above, the panel plate 24 is held by inserting the peripheral portion into the holding grooves 33b and 25a. That is, the edges of the four sides of the first panel plate 24A hold the holding grooves 33b of the first girder side frame 21A and the second girder side frame 21B, the holding grooves 25a of the joint frame 25, and the first crosspiece frame 23A. It is suitably held by the groove 33b. Further, the edges of the four sides of the second panel plate 24B hold the holding grooves 33b of the first girder side frame 21A and the second girder side frame 21B, the holding grooves 25a of the joint frame 25, and the second crosspiece frame 23B. It is suitably held by the groove 33b. Therefore, even if the side wall panel 20 receives a strong wind or the like, there is no possibility that the panel plate 24 will flutter inside the framework.

The frame structure of the side wall panel 20 is lightweight as a whole and easy to handle because at least the girder side frame 21 and the joint frame 25 are formed of a mold material obtained by extrusion molding such as aluminum. At this time, an extruded material such as aluminum may be used for one or both of the center rail frame 22 and the gable side frame 27, whereby the weight can be further reduced.

Further, the panel plate 24 can be formed of a thin plate made of light metal such as aluminum, a lightweight board, a mesh-shaped net plate, or the like, if necessary.

Then, in the assembly of the side wall panel 20, the girder side frame 21 and the crosspiece frame 23 are formed by the mold material 33 provided with the fitting groove 33a and the holding groove 33b as described above, and the first fixing piece 26a of the connecting metal fitting 26 and the first fixing piece 26a are formed. Since the fixing piece 28c of the bracket 28 is fitted into the fitting groove 33a, the framework work is easy and easy, and the panel plate 24 can be fitted and held in the holding groove 33b at the same time as the framework. , Productivity is very good.

As described above, the side wall panels 20 are arranged in an upright position along the gable-side edge of the scaffolding board 1 in the suspended scaffolding, and the side wall panels 20 adjacent to each other are arranged in an upright position, like the scaffolding board. The 20s are connected to each other by a joint device provided on the gable side frame 27. Although not shown, the gable side frame 4 of the scaffolding plates 1 arranged side by side and the gable side frame 27 of the side wall panel 20 are connected to each other by a general-purpose clamp metal fitting or the like, as shown in the figure. By erecting the side wall panel 20, a continuous safe wall surface is provided along the sides of the suspended scaffold.

The upright side wall panel 20 is maintained in an upright posture by connecting and fixing the center rail frame 22 to the structure constructed on the scaffolding plate. In the case of the illustrated embodiment, since the clamp metal fitting 35 is configured to be attached to the female screw means 36 provided on the center rail frame 22, the clamp metal fitting 35 can be fixed to various pipe materials constituting the structure. ..

(Joining device)
One embodiment of the joint device is shown in FIGS. 13 to 18. As described above, of both ends of the pipe material made of the circular pipe constituting the gable side frame 27, the first end portion 27a is located inside as shown by the distance L from the outer surface of the first gable side frame 21A. The socket 29 is formed by the opening end portion, and the support plate portion 28b of the first bracket 28A is fixed to the peripheral surface of the socket 29 on the lower side in the drawing by welding or the like. In the illustrated embodiment, the connecting pin 31 is connected to a part of the first bracket 28A via a flexible connecting means 31a such as a chain, and is composed of a circular hole into which the connecting pin 31 can be inserted. The pin insertion hole 32b is formed so as to penetrate the socket 29 and the support plate portion 28b.

Therefore, a temporary placement means 43 is provided between the space portion corresponding to the distance L, that is, the position where the open end of the socket 29 and the outer surface of the first girder side frame 21A are flush with each other. In the case of the illustrated embodiment, the temporary placement means 43 is formed by integrally extending the support plate portion 28b of the first bracket 28A, but the temporary placement means 43 is formed by fixing a separate metal plate or the like. It may be formed.

Of both ends of the gable side frame 27, the second end portion 27b has a support plate portion 28b of the second bracket 28B fixed to the peripheral surface on the lower side in the drawing by welding or the like, and is axially oriented from the second end portion 27b. A plug 30 is provided so as to project to the. The plug 30 is formed by an insertion member 44 inserted into the second end portion 27b, and in the illustrated embodiment, the insertion member 44 has a lower member 44a and an upper member having a half-split cylindrical cross section. It is formed by fitting 44b from above and below in a palm-to-hand state and fixing and integrating them, and penetrates up and down to form the elongated hole 32a.

At this time, it is preferable to form a guide means 45 having a small outer diameter at the tip of the plug 30. In the case of the illustrated embodiment, the tongue piece 45a projecting from the tip edge portion of the lower member 44a is bent and tilted toward the axial direction of the plug 30, whereby the guide means 45 is formed.

As shown in FIGS. 17 and 18 (A), in order to arrange a plurality of side wall panels 20 in a row, the plugs 30 are mutually inserted in a state where one side wall panel 20A and the other side wall panel 20B that are adjacent to each other are arranged in parallel. When inserting into the socket 29, as shown in FIGS. 17 and 18 (A), the tip end portion of the plug 30 can be placed on the temporary placing means 43 attached to the socket 29.

As a result, the side wall panel 20B to be installed later can be deposited with respect to the side wall panel 20A installed in advance, so that the work becomes easy.

In this regard, in the connection work by the joint device, it is necessary to insert the plug 30 into the socket 29 at the same time at two places, the first wife side frame 4A and the second wife side frame 4B, and the plug 30 needs to be inserted into the socket 29 at the same time at two places. At present, it is difficult to work because it must be aligned with the axis of. On the other hand, in the case of the present invention, since the temporary placing means 43 is provided, the plug 30 is placed along the axis of the socket 29 in a state where the tip portion of the plug 30 is placed on the temporary placing means 43. It is possible to adjust the posture of the side wall panel 20 as described above, and after the adjustment, the plug 30 may be inserted toward the socket 29 as shown in FIG. 18 (B), so that the work is remarkably performed. It will be easy.

(Additional embodiment of joint device)
FIG. 19 shows a preferred additional embodiment of the joint device, in which the temporary placement means 43 is provided with a guide support portion 46. Other configurations are the same as those of the joint device described above.

In the case of the above-described embodiment based on FIGS. 13 to 18, the socket 29 is formed by the open end portion of the first end portion 27a of the gable side frame 27 formed of the pipe material, and therefore the support plate portion. A step 47 corresponding to the wall thickness of the pipe material is formed between the temporary placing means 43 extending from 28b and the inner peripheral surface of the socket 29. Therefore, when the plug 30 is placed on the temporary placement means 43, the axis of the plug 30 cannot be aligned with the axis of the socket 29, and is displaced corresponding to the step 47.

On the other hand, according to the additional embodiment provided with the guide support portion 46, the plug 30 is placed on the guide support portion 46 on the temporary placing means 43, and in this state, the axis of the plug 30 is a socket. Since it is configured to match the axis of the 29, the plug 30 can be smoothly inserted and moved toward the inside of the socket 29 as it is from the temporarily placed state.

In the case of the illustrated embodiment, the temporary placement means 43 is deformed upward to form a bulging portion having a height that fills the step 47, whereby the guide support portion 46 is provided. The guide support portion 46 may be configured by fixing the member to the temporary placing means 43.

(Jointing device for scaffolding board)
FIG. 21 shows another embodiment of the present invention, in which the joint device is provided on the gable side frame 4 of the scaffolding plate 1. Since the basic configuration of the scaffolding plate 1 is the same as that of the above-mentioned prior art based on FIGS. 1 to 3, the same constituent members are designated by the same reference numerals, the description thereof will be omitted, and the above description will be incorporated.

Of both ends of the gable side frame 4, the first end portion 6a forms a socket 7 that opens facing the outer surface of the first gable side frame 3A. The second end portion 6b is inserted and fixed to the second wife side frame 3B, and the insertion member projecting from the second end portion 6b is projected outward from the outer surface of the second gable side frame 3B to be plugged. 8 is formed. This point is the same as the above-mentioned conventional technique, but the end portion of the first gable side frame 3A is shredded, and the first end portion 6a of the gable side frame 3A is outside the first girder side frame 3A. It is located inside as shown by the distance L from the side surface and is opened, and the socket 7 is formed by the opening end portion.

Therefore, the socket 7 is connected and fixed to the shredded end of the first girder side frame 3A via the bracket 48. The bracket 48 has the same configuration as the first bracket 28A shown in FIGS. 13 and 14 in the above-described embodiment, and therefore has the same reference numerals to the same components.

That is, the bracket 48 has a face plate portion 28a attached to the shredded end surface of the first girder side frame 3A by bending the metal plate, and the socket 7 projecting in the extension direction of the girder side frame 3A. A support plate portion 28b to be supported is formed, and the support plate portion 28b is fixed to the peripheral surface of the socket 7 by welding or the like. Although not shown, a fixed piece is fixed to the back surface of the face plate portion 28a by welding or the like, and the fixed piece is fixed to the girder side frame 3A.

Therefore, a temporary placement means 43 is provided between the space portion corresponding to the distance L, that is, the position where the open end of the socket 7 and the outer surface of the first girder side frame 3A are flush with each other. In the case of the illustrated example, the temporary placement means 43 is formed by integrally extending the support plate portion 28b of the bracket 48.

As described above, the joint device provided with the temporary placing means 43 of the present invention can be implemented not only on the side wall panel 20 but also on the scaffolding plate 1 of the suspended scaffolding, and a plurality of scaffolding plates 1 can be mounted. When inserting the plug 8 into the socket 7 between the adjacent scaffolding plates 1 and 1 for arranging in a row, the tip end portion of the plug 8 can be placed on the temporary placing means 43, and the connecting work can be performed. Can be easy.

(Another Embodiment of a joint device in a scaffold plate)
FIG. 22 shows still another embodiment of the present invention, in which the joint device is provided on the gable side frame 4 of the scaffolding plate 1.

Similar to the embodiment shown in FIG. 21, the end of the first girder side frame 3A is cut off. Therefore, the first end portion 6a of the gable side frame 3A is fixed in a state of being inserted into the support member 49 fixed to the inside and outside of the first gable side frame 3A.

The outer surface of the support member 49 is separated from the position of the same surface as the outer surface of the first girder side frame 3A by a distance L, and has a length corresponding to the distance L and is inserted from the support member 49. The open end of the first end 6a is formed with a notch in the upper half to open the socket 7 along the outer surface of the support member 49, and a notch piece protruding from the socket 7. 50 is extended, and the temporary placement means 43 is formed by the cutout piece 50.

Also in this embodiment, the joint device provided with the temporary placing means 43 of the present invention can be implemented on the scaffolding plate 1 of the suspended scaffold, and when the plug 8 is inserted into the socket 7, the tip of the plug 8 is inserted. By placing the portion on the temporary placing means 43, the connecting work becomes easy. Incidentally, in the case of this embodiment, since the socket 7 and the temporary placement means 43 (cutout piece 50) are formed of the same pipe material, there is an advantage that it is not necessary to provide the guide support portion 46 in the above-described embodiment. There is.

1 Scaffolding board 2 Floor material 3 Gable side frame 3A 1st gable side frame 3B 2nd gable side frame 4 Wife side frame 4A 1st wife side frame 4B 2nd wife side frame 5 Center frame 6a 1st end 6b 2nd end Part 7 Socket 8 Plug 9 Connecting pin 10 Long hole 11 Wire 12 Window hole 13 Hanging bracket 20, 20A, 20B Side wall panel 21 Gable side frame 21A 1st girder side frame 21B 2nd girder side frame 22 Middle rail frame 22U Crosspiece unit body 23 crosspiece frame 23A 1st crosspiece frame 23B 2nd crosspiece frame 24 panel plate 24A 1st panel plate 24B 2nd panel plate 25 joint frame 25a holding groove 25b window hole 26 connecting bracket 26a 1st fixing piece 26b 2nd fixing Piece 26c Connecting piece 26A Nut 27 Wife side frame 27A First wife side frame 27B Second wife side frame 27a First end 27b Second end 28 Bracket 28A First bracket 28B Second bracket 28a Face plate 28b Support plate 28c Fixing piece 28A Nut 29 Socket 30 Plug 31 Connecting pin 31a Connecting means 32a Long hole 32b Pin insertion hole 33 Model material 33a Fitting groove 33b Holding groove 33c Rib 33d Storage groove 34 Rivet 35 Clamping bracket 35a Mounting bolt 36 Female screw means 37, 39 , 41 Bolt 38, 40, 42 Bolt insertion hole 43 Temporary placement means 44 Insertion member 44a Lower member 44b Upper member 45 Guide means 45a Tongue piece 46 Guide support part 47 Step 48 Bracket 49 Support member 50 Notch piece

Claims (4)

It is a joint device that connects plate-shaped scaffolding components that are sequentially arranged in the extension direction to each other with respect to the suspended scaffolding that is suspended from the existing structure.
From the socket (7,29) provided at one end of the frame (4,27) fixed to the scaffolding component in the extension direction and the plug (8,30) provided at the other end. It is configured so that the plug is inserted into the socket between adjacent scaffold members.
A joint device for scaffolding components in a suspended scaffold, comprising a temporary placing means (43) for mounting the plug at a position where the plug can be inserted into the socket. The scaffolding constituent members are configured so that the gable-side frames are erected at both ends of the first-girder-side frame and the second-girder-side frame, which are arranged in parallel at a distance, and are arranged in a row in the extension direction of the gable-side frame. Has been
The gable side frame (4,27) has a first end portion (6a, 27a) among both end portions arranged so as not to protrude from the outer surfaces of the first girder side frame and the second gable side frame. A socket (7,29) is formed by opening it so as to be located inside the outer surface of the gable side frame, and the insertion member projecting from the second end portion is outside the outer surface of the second girder side frame. The plug is formed by protruding it into the gable.
The socket (7,29) of the gable side frame is fixed to the first girder side frame via the bracket (28,48), and is provided so as to be located between the socket and the outer surface of the first girder side frame. The joint device for scaffolding components in a suspended scaffold according to claim 1, wherein the temporary placing means (43) is configured by the support plate portion (28b) of the bracket. The joint of a scaffolding component in a suspended scaffold according to claim 1 or 2, wherein the temporary placing means includes a guide support portion (46) that aligns the center of the mounted plug with the center of the socket. Device. As the scaffolding constituent members, a gable-side frame made of a pipe material is erected at both ends of the first gable-side frame and the second-girder-side frame, which are arranged in parallel at a distance, and the scaffolding components are arranged in a row in the extension direction of the gable-side frame. Is configured to
The gable side frame (4) is formed by an open end portion constituting the first end portion (6a) among both end portions arranged so as not to protrude from the outer surfaces of the first girder side frame and the second girder side frame. A socket (7) is formed, and a plug (8) is formed by projecting an insertion member projecting from the second end portion to the outside of the outer surface of the frame on the second girder side.
The first end portion (6a) of the gable side frame is located inside the outer surface of the first gable side frame by cutting out the open end portion to form a socket (7), and the socket is formed. The joint device for a scaffolding component in a suspended scaffold according to claim 1, wherein the temporary placing means (43) is configured by a notch piece (50) extended from the scaffold.

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