JP2003082848A - Simple hanging scaffolding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simple hanging scaffolding device capable of simply constructing a working scaffolding fixed in a stabilized state within a short time at a low cost and, at the same time, simply carrying out withdrawal work within a short time after the completion of work. SOLUTION: The simple hanging scaffolding device comprises clamp bodies 2 and 3 holding both sides of a wall skeleton 90 between them and capable of being fixed thereto and a ladder 4 for a person to go up and down, and it is so constituted that hooks 5 are projected outward from the clamp bodies. The clamp bodies 2 and 3 are held by the wall skeleton 90 to fix, and horizontal battens 51 of the ladder 4 are hooked on the hooks 5 of the clamp bodies 2 and 3 to hang down to construct the working scaffolding in a fixed state to hang it down from the wall skeleton 90.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple hanging scaffolding device capable of easily constructing a working scaffold suspended from a wall structure such as a waist wall or a parapet in a short time in a short time, for example, when repairing an outer wall of a house. Regarding

[0002]

2. Description of the Related Art In a two- or three-story house, etc., a work scaffold for performing aerial work when replacing the drain attached to the outer wall of the house, repairing the sealing part of the outer wall, or repairing the painted surface. However, in the past, a ladder was leaned against the outer wall of a house at a slight angle and climbed to work, or a work constructed by assembling and constructing a single pipe with scaffolds and board frames assembled. It was done by climbing to the scaffold and working.

[0003]

However, when the former ladder is leaned against the outer wall, there is a problem that the ladder may fall and the safety of the operator cannot be sufficiently ensured. In particular, there is a concern that the ladder may fall when climbing on a ladder to lift a heavy object or when a strong force is applied to the outer wall.

Further, in the case of using the latter work scaffold constructed of a single pipe or a plate frame, there is a problem that it takes a certain number of days to assemble and construct them, and the cost is also large. There was a problem. In particular, when there is a carport or a garden tree in the place where the work scaffold is installed, the work scaffold becomes much larger, which increases the number of days required for assembly and construction and further raises the cost. Further, in such a large-scale scaffold, it is almost impossible to construct without a specialist contractor. In such a contractor, of course, the cost will increase further and the repair period There was also a problem that the process became longer and the process control became complicated. Furthermore, it took a long time to remove the work scaffold after the repair work was completed.

The present invention has been made in view of the above technical background, and it is possible to construct a work scaffold fixed in a stable state in a short time, easily and at low cost, and also to withdraw it after completion of work. It is an object of the present invention to provide a simple suspension scaffolding device that can be easily performed in time.

[0006]

[Means for Solving the Problems] The above-mentioned object is constituted by a clamp body which can sandwich and fix both side surfaces of a wall body such as a waist wall and a parapet, and a ladder which a person can move up and down.
A hook portion is provided so as to project from the clamp body, the clamp body is sandwiched and fixed to the wall skeleton body, and a hook of the ladder is hooked on the hook portion of the clamp body to be suspended and fixed from the wall skeleton body. The present invention is achieved by a simple suspension scaffolding device characterized by being capable of constructing a work scaffold.

By fixing the clamp body by sandwiching it in the wall body and hooking the horizontal rail of the ladder on the hook portion of the clamp body, it is possible to construct a work scaffold in a suspended and fixed state from the wall body, and thus stable operation is achieved. Work scaffolds can be easily constructed in a short time, and the number of days required for construction can be significantly reduced and the cost can be significantly reduced compared to the case of using a work scaffold constructed with a conventional single pipe or plate frame. it can. In addition, withdrawal work after the work is completed can be done simply by releasing the clamped state of the clamp body and releasing the hooked state of the ladder on the clamp body hook part, so the withdrawal after the work is also easy in a short time. Can be done. Furthermore, since the work scaffold can be constructed in a suspended and fixed state from the wall frame, even if there are obstacles such as carports and garden trees below the work scaffold installation location, the work scaffold can be used without any problems. Easy to build in a short time. in addition,
Since this simple suspension scaffolding device is divided into a clamp body and a ladder, it goes without saying that it is easy to carry normally.
When this device is transported to a balcony, a flat roof, or the like, there is an advantage that it can be smoothly transported through a house (for example, an entrance, stairs, a room, etc.) without any trouble.

As the ladder structure, it is preferable to adopt a structure in which a work step is provided extending from one end side in the length direction of the ladder in a substantially vertical direction with respect to the ladder. Since the work steps are extended, the work such as repair becomes very easy, and the stepping off of the foot during the work is effectively prevented.

Further, it is preferable that the contact leg portion is provided on the side of the ladder opposite to the side on which the working step is provided. When the scaffolding is constructed, the abutment leg portion is brought into contact with the wall structure, so that there is an advantage that stability of the suspended fixed state of the suspension scaffolding can be improved. It is preferable that the contact leg is provided below the intermediate portion in the length direction of the ladder.

It is preferable that an elastic member is joined to the tip of the abutment leg portion, which effectively prevents a contact mark such as a scratch from being left on the surface of the wall body with which the abutment leg portion abuts. can do.

On the other hand, the clamp body has a substantially U-shaped cross section which is composed of a horizontal portion that abuts on the upper surface of the wall body and a pair of upright portions that extend vertically from both ends of the horizontal portion. A clamp body portion formed in a shape, and a sandwiching leg portion projecting inward from each of the pair of upright portions,
It is composed of a hook portion protruding outward from the upright portion, and at least one of the sandwiching leg portions is adapted to be screwed so as to be able to advance and retreat in its length direction. preferable.

Since the clamp body can be clamped and fixed in the wall body body in a state where the horizontal portion is in contact with the upper surface of the wall body body, the clamp body can be fixed to the wall body body in a more stable state. In addition, at least one of the sandwiching leg portions can be screwed in such a manner that it can be moved back and forth in its length direction, and since it can be sandwiched and fixed simply by moving this back and forth, the sandwiching and fixing operation is extremely difficult. Simplification, which further shortens the time required to construct the work platform.

The clamp main body is configured to have two frame-shaped clamp bodies, and one end side of the connecting rod is pivotally supported at an upper position of at least one of the clamp bodies. It is preferable that it can rotate in a substantially horizontal plane. The clamp body can be configured to have a frame shape to reduce the weight of the clamp body, and the connecting rod can firmly connect the two clamp bodies to each other in a stable state. Can be fixed to the body in a stable state. In addition, when carrying, since the connected and fixed state by the connecting rod can be released and the clamp body can be separately carried into two clamp bodies having a frame-like shape, it can be carried more easily. This makes it easier to transport the device to balconies, flat roofs, etc. even more smoothly.

Of the pair of upright portions, the sandwiching leg portion projecting from the upright portion where the hook portion is not provided is adapted to be screwed so as to be able to advance and retreat in the lengthwise direction, while the hook portion is provided. It is preferable that the sandwiching leg protruding from the upright portion is fixed to the upright portion. The upright part not provided with the hook part is arranged on the inner side of the wall body, and the pinching legs protruding from the upright part are operated to move back and forth to complete the pinching and fixing. Therefore, the screwing operation for pinching and fixing can be performed on the flat roof or the like inside the wall body, and the workability of pinching and fixing work can be significantly improved. In contrast,
If the sandwiching leg protruding from the upright part where the hook is provided can be screwed forward and backward, the operator's body should be pushed out to the outside from the wall frame. It is necessary to perform the operation, the workability of the pinching and fixing work is poor, and it is not preferable in terms of safety.

When the elastic member is joined to the tip of the sandwiching leg and the elastic member is joined to the contact surface with the upper surface of the wall body in the horizontal portion, the surface of the wall body is contacted with scratches or the like. It is possible to effectively prevent the marks from remaining.

[0016]

1 to 5 show a simple suspension scaffolding device (1) according to one embodiment of the present invention. In FIG. 1 which shows each component of this simple suspension scaffolding device (1) in a separated state,
(2) and (3) are a pair of clamp bodies, and (4) is a ladder.

As shown in FIG. 2, the right side clamp body (2) has a clamp body (7) and a sandwiching leg (9).
(10) and a hook part (5).

The clamp body (7) is provided with a wall body (9).
0) a horizontal portion (20) abutting on the upper surface (90a),
The horizontal portion (20) has a pair of upright portions (21, 22) extending vertically from both ends of the horizontal portion (20) and is formed into a frame shape having a substantially U-shaped cross section. The upper part of the wall frame (90) can be inserted into the U-shaped inner space.

The horizontal portion (20) and the upright portion (21)
Each of (22) is a hollow corner (rectangular) pipe. Both ends of the horizontal portion (20) are cut at an angle of 45 degrees, and the upright portions (2
1) The same 45 degree cut surfaces at the upper ends of (1) and (22) are respectively arranged in abutting shape and welded to each other, thereby forming a substantially U-shaped clamp body (7).

Further, corner joining pieces (24) and (24) are arranged in contact with the front and back sides of the two corner portions of the clamp body (7), respectively, and the corner joining pieces (24) are Is also welded and joined to both the horizontal portion (20) and the upright portions (21) and (22), so that the joint strength between the horizontal portion (20) and the upright portion is sufficiently secured, and by extension, it is sufficient. A strong clamp body (7) is constructed. The length of one upright portion (22) of the pair of upright portions (21) and (22) is set longer than the length of the other upright portion (21).

At the lower end of the upright portion (22), a hook portion (5) is provided so as to project outward. That is, the hook portion (5) is a flat plate in which the receiving portion (5b) is extended from the lower portion of the base end side joint portion (5a), and the upper surface of the receiving portion (5b) has a ladder (described later). 4) Cross rail (51)
Is formed in an arc shape that conforms to the shape of the lower outer peripheral surface of the base end side joint part (5a) by welding and joining to the lower end part of the upright part (22) so that the receiving part (5b) is outward. It was projected toward.

From the lower position of the pair of upright portions (21) and (22), as shown in FIG. 2B, the sandwiching leg portions (9) and (10) face each other inward. It is provided in a protruding manner. The sandwiching leg portion (9) protruding from the upright portion (21) not provided with the hook portion is configured to be screwed so as to be movable back and forth in the length direction thereof. That is, an insertion hole (25) extending in the same direction as the axial direction of the horizontal portion (20) is formed below the upright portion (21), and the insertion hole (25) extends on the outer side surface of the upright portion (21). At the drilling position of the insertion hole (25), the nut (2
6) is joined by welding so that the female screw hole of the nut (26) and the insertion hole (25) are in communication with each other, while the bolt shaft (9a) of the pinching leg portion (9) is connected to the insertion hole ( 25), further screwed into the female screw hole of the nut (26), and the lever (9c) attached to the outer tip side of the bolt shaft (9a) is rotated right or left to be screwed into the female screw hole. The bolt shaft (9
The contact piece (9b) provided on the inner front end side of (a) can be moved back and forth in the length direction of the bolt shaft (9a).

On the other hand, the sandwiching leg portion (10) protruding from the upright portion (22) provided with the hook portion (5).
Is fixed to the upright portion (22), and the position of the contact piece (10b) provided on the inner tip side is immovable.

Abutment pieces (9b) (1) of the sandwiching leg section
An elastic member (13) is joined to the tip of 0b). In this embodiment, a rubber pad is used as the elastic member (13).

Further, the horizontal portion (2) of the clamp body (7) is
The elastic member (23) is also joined to the contact surface (20a) with the upper surface (90a) of the wall body (90) in (0).
In this embodiment, a rubber sheet is used as the elastic member (13).

On the other hand, the left clamp body (3) has the same structure as the right clamp body (2) described above, and
The configuration (connection rod etc.) described in detail below is further added, and the same reference numerals are given to the portions having the same configuration as the right side clamp body (2), and the description thereof will be omitted (FIG. 3).
reference).

The additional structure of the left clamp body (3) will be described. As shown in FIG. 3, a connecting rod (14) is attached to the upper surface (20b) of the horizontal portion (20) of the left clamp body (3). That is, this connecting rod (1
4) is composed of a frame body having a substantially L-shaped cross section, one end of which is
It is rotatably supported at an end position on the hook portion (5) side on the upper surface (20b) of the horizontal portion so as to be rotatable in a substantially horizontal plane (see FIG. 3C). Also,
An insertion hole (14a) is formed at the other end of the connecting rod (14), while a short bolt (15) is provided at a position slightly closer to the upright portion (21) than the central position on the upper surface (20b) of the horizontal portion. The projection is provided by welding, and the wing nut (16) is screwed into the short bolt (15) through the insertion hole (14a) of the connecting rod (14) to connect the short bolt (15). The rod (14) can be fixed on the upper surface (20b) of the horizontal portion in an overlapping state. When transporting the present simple suspension scaffolding device, the connecting rod (14) is usually placed in such a stacked and fixed state. By doing so, it becomes very easy to carry, and it becomes possible to carry this device even more smoothly when it is carried through a house to a balcony or a flat roof.

When constructing the clamp body, the screwing state of the wing nut (16) is released, the wing nut (16) is removed from the short bolt (15), and then shown in FIG. As described above, the connecting rod (14) is rotated to a direction perpendicular to the axial direction of the horizontal portion (20), and the tip of the connecting rod (14) is moved to the horizontal portion (2) of the right clamp body (2).
0) of the connecting rod (14) through the short bolt (17) projecting on the upper surface (20b) of the horizontal part of the right clamp body (2) while being brought into contact with the upper surface (20b) of the connecting rod (14).
The pair of clamp bodies (2) and (3) are firmly and stably connected to each other by screwing and tightening the wing nut (16) onto the short bolt (17).

In this embodiment, as shown in FIG. 4, a structure is adopted in which the ends of the pair of clamp bodies (2) and (3) on the hook portion (5) side are connected by a connecting rod (14). However, for example, the ends of the clamp bodies (2) and (3) on the side opposite to the hook portion (5) are connected to each other by a connecting rod (14).
The clamp body (2) or the clamp body (3) may be connected to each other by a connecting rod (14), or the clamp body (2) may be connected. If the configuration in which the corresponding positions of (3) are connected by the connecting rod (14) is adopted, the same effect as that of the present embodiment (strong connection in a stable state) can be enjoyed.

Next, the ladder (4) will be described. As shown in FIG. 5 (a), the ladder (4) is provided between a pair of columns (50) (50) arranged in parallel at a predetermined interval.
A plurality of horizontal rails (51) are hung and joined and fixed. That is, the column (50) is made of a metal frame body having a substantially U-shaped cross section, and is arranged with the open side of the substantially U-shaped facing inward. A ladder (4) having sufficient strength is formed by welding and joining the end of the horizontal rail (51) to the inner surface of the support column (50) with the end of the horizontal rail (51) inserted and arranged therein. ing.

In the cross-sectional shape of the cross rail (51), the upper surface is flat and the lower portion is arcuate. Since the upper surface is formed as a flat surface in this way, the lifting and lowering operation of a person can be performed in a stable state, and work safety can be improved.

Although the horizontal rail (51a) is hung between the upper ends of the columns (50) (50), the method of joining and fixing the horizontal rail (51a) is the same as the above-mentioned other horizontal rail (51a). 5
This is different from the method of joining and fixing in 1). That is, the mounting piece (56) connected from both end positions of this horizontal rail (51a)
(56) are the pillars (50) (5
0) screwed and tightened to cross rail (51a)
Is firmly fixed.

Further, as shown in FIG. 5B, horizontal rods (60) (60) each having a substantially U-shaped cross section are respectively attached to the columns from the lower ends of the columns (50) (50). The horizontal bar (61) is vertically extended, and a horizontal rail (61) is stretched between the tip ends of the horizontal rods (60) (60) to be joined and fixed.

A working step (52) is placed on the upper surface of the horizontal rods (60) (60), and the working step (52) is joined and fixed to the horizontal rods (60) (60) by welding. ing. The upper surface of this working step (52) is
It is formed on an uneven surface to prevent slipping. Since such work step (52) is provided, the work such as repair becomes very easy.

As shown in FIG. 5B, the horizontal rod (6
0) and an outer side surface of the lower end portion of the support column (50), a side plate (62) having a substantially triangular shape is disposed in contact with the side plate (62), and the side plate (62) is screwed and fastened to the horizontal position. It is connected and fixed to the lower ends of the rod (60) and the column (50). Since such side plates (62) are provided on both left and right sides, it is possible to effectively prevent the operator from stepping off the foot during the work.
Work safety can be improved.

Further, contact legs (53) (53) are attached and fixed to the lower ends of the columns (50) (50), respectively. That is, the abutment portion (64a) of the attachment piece (64) having a substantially L-shaped cross section is fixed by the bolt to the support column (50).
While being fixed to the outer side of the lower end portion of the shaft, the shaft portion (53a) of the leg portion (53) contacts the mounting portion (64b) of the mounting piece (64).
By being screwed and fixed, the contact piece (53b) of the contact leg portion (53) is projected outwardly on the side opposite to the side on which the working step (52) is provided. (See FIG. 5B). The contact piece (53b)
An elastic member (54) is joined to the tip of the rubber pad. In the present embodiment, a rubber pad is used as the elastic member (54).

Further, eyebolts (55) (55) are attached and fixed to the upper sides of the columns (50) (50), respectively. That is, the abutment portion (65a) of the attachment piece (65) having a substantially L-shaped cross section is fixed to the support column (5) by a bolt.
0) is fixed to the outer side surface of the upper part of the ladder (4) by screwing the shaft portion of the eyebolt (55) to the mounting portion (65b) of the mounting piece (65).
A pair of left and right eyebolts (55) (5
5) is arranged so as to project to the front side (FIG. 5).
(See (b)).

Therefore, a method for constructing a work scaffold using the simple suspension scaffolding device (1) of the present invention, that is, the simple suspension scaffolding device (1) is hung and fixed from the wall frame (90) to construct the work scaffolding. An example of the method of doing is shown.

First, as shown in FIG. 4, while a pair of clamp bodies (2) and (3) are arranged in parallel at a predetermined distance, the wing nut (16) is attached from the short bolt (15). The connecting rod (14) pivotally supported by the left side clamp body (3) is rotated to a direction perpendicular to the axial direction of the horizontal portion (20), and the insertion hole (14a) of the connecting rod (14) is removed.
Through a short bolt (17) projecting from the upper surface (20b) of the horizontal portion of the right clamp body (2), and the tip of the connecting rod (14) is attached to the upper surface (20b) of the horizontal portion of the right clamp body (2). )
Abut the wing nut (1
By screwing and tightening 6), the pair of clamp bodies (2) and (3) are firmly connected and integrated in a stable state.

Next, the horizontal portion (20) of the clamp bodies (2) and (3) connected and integrated by the connecting rod (14).
Is clamped on both sides of the wall body (90) with the clamp bodies (2) and (3) in a manner of abutting against the upper surface of the wall body (90) such as a waist wall or parapet, and then the lever (9c) is manually operated. By rotating the pinching legs (9) into the female screw holes of the nuts (26) provided on the upright portions (21) to contact the contacting pieces (9b) of the pinching legs (9). ) Is brought into contact with the wall body (90), and further tightened by screwing to clamp and fix the clamp bodies (2) and (3) firmly on the wall body (90) (see FIG. 6). At this time, since the elastic member (13) is joined to the tip of the contact piece (9b), the wall frame (9)
0) can be effectively prevented from being damaged. In addition, at the time of sandwiching and fixing, it is preferable to insert a cushion sheet such as a rubber sheet between the elastic member (13) joined to the contact piece (9b) and the wall body (90), Thereby, not only can the side surface of the wall frame (90) be prevented from being damaged, but also the adhesion of dirt to the side surface can be prevented.

Next, as shown in FIG. 6, the ladder (4)
The horizontal crosspiece (51) is hooked on the hook portions (5) and (5) of the clamp bodies (2) and (3), and the contact piece (53b) of the contact leg portion (53) of the ladder (4) is attached. Wall frame (90)
The ladder (4) is suspended and fixed from the wall frame (90) by abutting against the side surface of the work platform to construct a work scaffold by the simple suspension scaffolding device (1) of the present invention.

Although FIG. 6 shows the arrangement in which the second horizontal rail from the top among the plurality of horizontal rails (51) forming the ladder (4) is hooked on the hook portion (5), The arrangement is not particularly limited to this arrangement. For example, the first horizontal rail from the top may be hooked on the hook portion (5), or the third horizontal rail from the top may be attached to the hook portion (5). It may be hooked. The position of the horizontal rail to be hooked on the hook (5) in this way depends on the height position of the work step (52) provided at the lower end of the ladder (4). Since (distance from the upper surface of the wall body) is determined, it may be determined in relation to this.

FIG. 7 shows a simple suspension scaffolding device (1) of the present invention.
Fig. 3 shows an example of a working state using the, which shows a state in which the drain attached to the outer wall (wall structure) of a two-story house is being replaced. Work steps (5
In consideration of the height position of 2), which of the cross rails (51) is to be hooked on the hook portion (5) may be determined in relation to this. Note that FIG. 7 shows an example in which the drain replacement work is applied, but the invention is not particularly limited to such an application, and may be applied to other applications, for example, repairing a sealing of an outer wall or It can be applied to the repair of painted surfaces.

Although not shown in FIG. 7, it is desirable to take safety measures to prevent workers from falling when performing work using the simple suspension scaffolding device (1) of the present invention. One end of the safety rope is connected to a person's waist belt, and the other end of the safety rope is inserted into the eyebolt (55) of the ladder (4) to be connected and fixed to a fixing portion provided on the wall body (90) or the like. Is good.

In this embodiment, the ladder (4) whose length cannot be adjusted is used, but of course, a ladder whose length can be adjusted may be used. Further, although the configuration including the pair of clamp bodies (2) and (3) is adopted as the clamp body, the configuration is not particularly limited to such a configuration, and for example, the configuration including one clamp body is adopted. Any structure may be adopted as long as it can sandwich and fix both side surfaces of the wall body (90).

[0046]

According to the invention of claim 1, the work scaffold suspended and fixed in a stable state can be easily constructed in a short time, and the work scaffold constructed by the conventional single pipe or plate frame. Compared with, the construction time can be significantly shortened and the cost can be remarkably reduced. Moreover, the withdrawal work after the completion of the work can be easily performed in a short time. Furthermore, since the work scaffold can be constructed in a suspended and fixed state from the wall frame, even if there are obstacles such as carports and garden trees below the installation site of the work scaffold, there is no problem and it can be done easily in a short time. A work scaffold can be built. In addition, since it can be separated into a clamp body and a ladder, it is easy to carry normally, and when carrying this device to a balcony, flat roof, etc., it can be carried smoothly through the house without any trouble. .

According to the second aspect of the present invention, since the work steps are extended to the ladder, the work such as repair is very easy and the stepping off of the foot can be effectively prevented, so that the safety is ensured. Can be improved.

According to the third aspect of the present invention, since the contact leg portion for contacting the wall body is provided, the stability of the suspension scaffold in the suspended and fixed state can be improved.

According to the fourth aspect of the present invention, it is possible to effectively prevent a defect such as damage to the wall body with which the contact leg portion abuts due to the elastic force of the elastic member.

According to the fifth aspect of the present invention, the clamp body can be fixed to the wall body with the horizontal portion in contact with the upper surface of the wall body. Therefore, the clamp body can be fixed to the wall body in a more stable state. it can. Further, since the sandwiching and fixing can be performed only by performing the advancing / retreating operation by screwing the sandwiching leg portion, the fixing operation is greatly simplified, and the time required for constructing the work scaffolding can be further shortened.

According to the sixth aspect of the present invention, the clamp main body is formed in the shape of a frame, so that the weight can be reduced, and the two clamp bodies can be separately carried in the shape of a frame. Therefore, it becomes easier to carry, and the apparatus can be carried more smoothly when it is carried to a balcony or a flat roof.

According to the invention of claim 7, since the screwing operation for pinching and fixing can be performed on the flat roof or the like inside the wall body, the workability of pinching and fixing work can be remarkably improved, and the pinching and fixing can be performed. When performing work, it is not necessary to lean the body of the worker out of the wall body to a large extent, so that work safety can be improved.

According to the eighth aspect of the present invention, it is possible to effectively prevent contact marks such as scratches from being generated on the wall body due to the elastic force of the elastic member.

[Brief description of drawings]

FIG. 1 is a perspective view showing respective constituent members of a simple suspension scaffolding device according to an embodiment of the present invention in a separated state.

2A and 2B are diagrams showing a right side clamp body, in which FIG. 2A is a front view and FIG. 2B is a left side view.

3A and 3B are diagrams showing a left side clamp body, in which FIG. 3A is a front view, FIG. 3B is a left side view, and FIG.

FIG. 4 is a perspective view showing a state where the left and right clamp bodies are connected and fixed by a connecting rod.

FIG. 5 is a diagram showing a ladder, in which (a) is a front view and (b).
Is a left side view.

FIG. 6 is a view showing a state in which the simple suspension scaffolding device of the present invention is suspended and fixed from a wall body, (a) is a front view,
(B) is a left side view.

FIG. 7 is a front view showing an example of a working state using the simple suspension scaffolding device.

[Explanation of symbols]

1 ... Simple hanging scaffolding device 2, 3 ... Clamp body 4 ... ladder 5 ... Hook part 7: Clamp body 9 ... Legs for sandwiching 10 ... Legs for sandwiching 13 ... Elastic member 14 ... Connection rod 20 ... Horizontal part 20a ... Abutting surface 21 ... Upright 22 ... Upright 23 ... Elastic member 51 ... Side rail 52 ... Working step 53 ... Abutment leg 54 ... Elastic member 90 ... Wall structure 90a ... Top surface

Claims (8)

[Claims] 1. A clamp body which can sandwich and fix both side surfaces of a wall body such as a waist wall and a parapet, and a ladder for raising and lowering a person, and a hook portion protruding from the clamp body. , The clamp body is sandwiched and fixed to the wall body, and the crosspiece of the ladder is hooked on the hook portion of the clamp body so that the work scaffold can be constructed in a suspended and fixed state from the wall body. A simple hanging scaffolding device. 2. The simple suspension scaffolding device according to claim 1, further comprising a work step extending substantially vertically from the one end side in the length direction of the ladder to the ladder. 3. The simple suspension scaffolding device according to claim 2, wherein a contact leg portion is projectingly provided on a side of the ladder opposite to a side on which the working step is provided. 4. The simple suspension scaffolding device according to claim 3, wherein an elastic member is joined to a tip of the contact leg portion. 5. The cross section of the clamp body, which includes a horizontal portion that abuts on the upper surface of the wall body, and a pair of upright portions that extend vertically from both ends of the horizontal portion, is substantially U-shaped. From a clamp body portion formed in a shape, a sandwiching leg portion protruding inward from each of the pair of upright portions, and a hook portion protruding outward from the upright portion. The simple suspension scaffolding device according to any one of claims 1 to 4, wherein at least one of the sandwiching leg portions is configured to be screwed so as to be capable of advancing and retracting in a length direction thereof. 6. The clamp body is provided with two clamp bodies each having a frame shape, and one end side of a connecting rod is pivotally supported at an upper position of at least one of the clamp bodies. 6. The simple suspension scaffolding device according to claim 5, wherein the is movable in a substantially horizontal plane. 7. A sandwiching leg portion projecting from an upright portion not provided with a hook portion of the pair of upright portions is adapted to be screwed forward and backward in the longitudinal direction, while a hook is provided. The simple scaffolding device according to claim 5 or 6, wherein the sandwiching leg portion projecting from the upright portion provided with the portion is fixed to the upright portion. 8. The elastic member is joined to the tip of the sandwiching leg portion, and the elastic member is joined to a contact surface of the horizontal portion with the upper surface of the wall body. The simple suspension scaffolding device according to the item.