JP2802307B2 - Working equipment for temporary work - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[Industrial applications]

The present invention relates to a work apparatus for temporary work for work such as painting in a building such as a building, a bridge girder, a tower or the like.

[Prior art]

When it is necessary to secure a scaffold for work, such as for exterior repair of a structure, a temporary structure corresponding to the temporary construction area has been prepared using pipe struts, turnbuckles, joints, scaffolding boards, etc. I have. In this case, the materials of the temporary structure are enormous, and preparations before the work and clearing after the work are not easy. In particular, when the structure is very high, sufficient strength is required to withstand the wind pressure. In addition, temporary construction of the bridge girder, the side or lower surface of the bridge, and the like require temporary materials of special technology and structure.

[Problems to be solved by the invention]

Therefore, a gondola is suspended from the top of the building with a wire, and work is actually performed in this place.However, since it is easily affected by the wind, it is necessary to consider the weather and work safety. There's a problem. For this reason,
Except for cases such as window-cleaning gondola equipment for skyscrapers designed with sufficient safety in mind, the use of gondola for normal temporary construction is not dangerous.
I was not allowed. Therefore, an object of the present invention is to address the problem in the above-mentioned conventional temporary construction, and a temporary construction work device which does not require a huge temporary construction while ensuring sufficient strength to withstand wind pressure. It is intended to provide.

[Means for Solving the Problems]

In order to achieve the above object, the present invention provides a hanger rail 2 mounted along a structure, a hanger 5 movably mounted on the hanger rail 2, and a hanger 5
Temporary apparatus comprising: a second suspending machine 6 suspended by a suspending machine 5 and rotatably connected to the suspending machine 5 along a horizontal plane; and a truss beam B supported by the suspending machine 6. In the work equipment for construction, rack-shaped teeth 10 are provided in the longitudinal direction on the lower surface of the flange of the guide rail 9 located at the lower part of the truss beam B, and two pin rolls 11B and 11C meshing with the rack-shaped teeth 10 are provided inside. Then, a pair of hangers 11 that operate synchronously and reciprocally are mounted on the guide rails 9 so that the hanger 11 can reciprocate along the guide rails 9, and a longitudinal front surface of a flange of the rail 14 having a T-shaped cross section. The plate 14A located at the upper end of the rail 14 is integrally formed with plates 14A and 14B that enable the rail 14 to be connected to the upper and lower ends of the web in the longitudinal direction. A drive-side pin roll 18A, a braking side 18B, which moves up and down while meshing with the meshing portion 14Y of the rail 14, and a pinch roll 18C holding the rail 14 together with the pin rolls 18A, 18B. A work table 17 having a plurality of lifting drive means 18 is mounted on the rail 14 so that the work table 17 can be moved up and down along the rail 14.

[Action]

With the above configuration, the working device for temporary construction of the present invention
Since the rails 14 arranged in parallel and the work table 17 mounted on these rails 14 act as rigid members, a safe scaffold is constructed. Then, a pair of hangers 11 reciprocating along the longitudinal direction of the guide rail 9, each rail 14 suspended from these hangers 11 and connectable in the longitudinal direction, and the rails 14 can be raised and lowered. With the work table 17 mounted, the work table 17 is lowered along the rail 14 and the rail
The work area is sequentially expanded downward by adding the upper end of the next rail 14 to the lower end of 14. The work table 17 has a longitudinal direction of the guide rail 9 and a longitudinal direction of the connected rails 14 within a work range area, and the work table 17 can easily move left, right, up and down in the work area. Large-scale construction of temporary scaffolds is not required. As a result, preparation for temporary installation, clearing, and the like are facilitated.

【Example】

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings with respect to aspects in work such as painting under a bridge. In the figure, reference numeral 1 denotes an upper support beam of the bridge A,
A hanger rail 2 extending along the longitudinal direction of the support beam 1 is attached to the rib 1A by a vice 3. The hanger rail 2 has an inverted T-shaped cross section,
On the lower surface, corrugated rack-shaped teeth 4 are fixed along the longitudinal direction. On the hanger rail 2, a plurality of hanging machines 5 are movably mounted. As shown in FIGS. 3 to 5, the hanging and holding 5 has a box-shaped casing.
The casing 51 has a vertically split shape, and is constituted by a pair of divided casings 51A and 51B that can be positioned on both sides of the hanger rail 2. The split casings 51A and 51B are connected to each other and a hanger rail 2
Window holes 51 for introducing air into the internal space
Form X. The split casings 51A and 51B are provided with female threads 51C formed of nuts and the like, and the wheels 52 are mounted on shafts 52B such as bolts screwed into the female threads 51C via bearings 52C. The wheel 52 rests on the side edge 2A of the hanger rail 2 so that the rim 52A does not come off. The other end of the shaft 52B is a bolt 52D, which is screwed into a female screw 51C provided on the outer surface of the divided casings 51A and 51B, and the rotation is stopped by inserting the lock pin 51D. Further, the split casings 51A and 51B are provided, together with the wheels 52, with holding wheels 53 for holding the side edge 2A of the hanger rail 2.
Are provided by the support of the shaft 53A. A flap 51E is in contact with both ends of the split casing 51A at the lower half in the height direction, and both split casings 51A and 51B can be freely opened and closed by hinges 51F or bolts and nuts provided on the flap 51E. I have. In addition, a lock pin 51G is attached to the flap 51E which is an open end.
Are provided, and the pin casings 51H and 51I have a common axis when the divided casings 51A and 51B are closed. In the above embodiment, the casing 51 is formed by the split casings 51A and 51B, but the casing 51 may be of an integral structure. In this case, the flap 51E
The upper space is the slit-shaped window hole 51X,
The insertion space for the hanger rail 2 is formed. One of the above-mentioned hanging machines 5, for example, the center hanging machine 5X, has a pinion wheel 54 mounted on a shaft 54A passing through the divided casings 51A and 51B instead of the holding wheel 53, and this pinion The wheel 54 is meshed with the rack-shaped teeth 4 of the hanger rail 2, and the gear 55 B provided on the shaft 54 A of the pinion wheel 54 is meshed with the gear 56 B of the shaft 56 A of the crank handle 56 provided on the casing 51, By transmitting the torque to the pinion wheel 54 by the rotation of the handle 56, the lifting machine 5X can be moved along the hanger rail 2. Further, a window hole 57 is formed in the side surface of the casing 51 along the width direction of the rack-shaped teeth 4, and the lock pin 58 is inserted into the window hole 57 so that the lock pin 58 is inserted. The movement of the lifting machine 5 can be stopped by being locked to the rack-shaped teeth 4. At the lower end of such a suspending machine 5, a second suspending machine 6 is suspended by a suspending arm 61. The suspension arm 61 has a support portion 61A at the top, and a suspension shaft 59 that penetrates horizontally to a suspension tool 62 that rotatably supports the suspension portion 61A is bridged between the divided casings 51A and 51B. It is involved. The hoisting machine 6 has a box-shaped casing 63, a roller or pinion wheel 64, and a sandwiching roller 65 with shafts 64A and 64A, respectively.
The pinion wheel 64 is supported via 5A.
It engages with the rack-shaped teeth 8 of the guide rail 7 described later, and the sandwiching roller 65 contacts the lower surface of the guide rail 7. The guide rail 7 constitutes an upper side of the truss beam B, and a lower side of the truss beam B is constituted by a guide rail 9 having the guide rail 7 turned upside down.
The rack-shaped teeth 10 are provided on the lower surface. The truss beams B are connected by brackets 7A and bolts / nuts 7B and 7C. A pair of hangers 11 which are reciprocally operated synchronously by a remote operation from a worktable 17 to be described later are mounted on the guide rail 9 so as to be able to travel via a connecting member 11a having an appropriate length. The hanger 11 has a housing 11A and pin rolls 11B and 1B.
1C and supporting rolls 11D, 11D, the pin rolls 11B, 11C mesh with the rack-shaped teeth 10, and the running means 12 for driving the pin roll 11B and running the hanger 11 along the rail 9; A stopping means 13 is provided for applying a braking force to 11C and stopping it. This can be remotely controlled by a controller (not shown). The hanger 11 has a rail
14 can be connected at its upper end with bolts 15. For this reason, the rail 14 has plates 14A and 14B at the upper and lower ends thereof as a replenishing means, and a bolt hole 14C for passing a bolt 15 is formed here. And
When the next rail is added to the rail 14, the plate
14A and 14B are overlapped, a bolt 15 is passed through, and a nut 16 is screwed and connected. The rail 14 is provided with a meshing portion 14Y formed in a corrugated shape on a rail body 14X. In this embodiment,
Although the T-shape is given as the rail body 14X, it goes without saying that various constituent members such as an angle-shaped cross section (see FIG. 13), a channel shape, and a rectangular tube shape can be adopted. A work table 17 is provided on the rail 14. Elevating drive means 18 are provided on each of the upper parts of the work table 17 in parallel with each other, corresponding to each rail 14,
A reinforcing member 17a for reinforcing the work table 17 is provided at an intermediate portion of the work table 17. In this embodiment, the lifting drive means 18 includes two pin rolls 18A and 18B including a drive-side pin roll 18A and a braking-side pin roll 18B that mesh with the meshing portion 14Y of the rail 14, and the rail 14 is connected to the pin rolls 18A and 18B.
And a pinch roll 18C to be pinched therewith. One pin roll 18A has its shaft 18D driven by a motor 18E. The lifting drive means 18 is
The rotation of 18E is reduced through the worm reducer 18F,
It has a configuration to transmit the force to the shaft 18D of the pin roll 18A via the clutch 18G. The other pin roll 18B has its shaft 18H connected to a brake 18J via a clutch 18I, and the lifting drive means 18 controls the drive of the motor 18E, on / off control of the clutches 18G and 18I, Trigger 18
A control unit 19 for controlling the braking force adjustment of J is provided. Each of the pin rolls 18A and 18B has a flange 18Z that slides on the side surface of the rail 14, and has a pin 18X that meshes with the meshing portion 14Y.
A rolling contact portion 18Y that rolls and contacts the surface of the rail 14 left on both sides of Y is provided. In addition, instead of such a pin roll,
A gear may be used. When the rail is formed of a pipe as shown in FIG. 14, the rail 14 'is engaged with an engagement hole 14Y' formed at a predetermined pitch (this functions as a rack corresponding to the meshing portion 14Y). A wheel 18A 'in which mating pins 18X' are implanted on the peripheral surface may be used. Again, in this case,
It goes without saying that a pinch roll supported from the opposite side of the rail 14 'is prepared. Then, the entire structure to be suspended below the hanger rail 2 is moved by driving the suspending machine 5X, and
The lifting machine 6 controls the movement of a guide rail 7 orthogonal to the hanger rail 2. The hanger 11 provided on the guide rail 9 parallel to the guide rail 7 is provided with a traveling means.
The operation moves to a predetermined position by the operation of 12, and is stopped by the stopping means 13. In this state, the first rail 14 is suspended from the hanger 11, and the work table 17 is supported here via the lifting drive unit 18. In the lifting drive means 18, when the control unit 19 is operated to drive the motor 18E, the clutch 18I is turned off. As a result, the work table 17 is rotated with respect to the rail 14 by rotating the pin roll 18A by the rotation of the motor 18E, but at this time, the brake 18J does not work for the above-described rise.
Further, by operating the control unit 19, stopping the motor 18E, turning off the clutch 18 and turning on the clutch 18I, and operating the brake 18J, a stopped state can be obtained. Then, the workbench 17 can be lowered by the load by the adjustment control of the brake 18J. For safety, the lifting / lowering drive means 18 is provided with a pin roll 18A, 18B or a meshing portion 14Y of the rail 14 for maintaining a stopped state.
It is preferable to provide a lock means for locking the lock.
The brake 18J or the control unit 19 for controlling the brake 18J may be provided with a means for regulating the descending speed or regulating the acceleration / deceleration control. In this way, if the work table 17 is mounted on the first rail 14, the operator can lower the required amount by operating the control unit 19. Then, at the stage where the temporary work level is lowered, as shown by imaginary lines in FIGS. 7 and 8, the next rail 14 is added to the lower end of the rail 14 by using the adding means, and in this way, sequentially The level of the workbench 17 is lowered, and the temporary work is performed to a required level (a level below the bridge to a predetermined position). Then, the range of the length of the extended rail 14 and the range of the reciprocating operation along the longitudinal direction of the guide rail 9 by the hanger 11 can be a temporary construction area in which the workbench 17 can be moved. Since the work table 17 can be easily moved in the left, right, up and down directions within the construction area, by performing work such as painting from the work table 17, it is unnecessary to construct a conventional large-scale temporary scaffold. Further, since the rails 14 arranged in parallel and the work table 17 provided with the reinforcing members mounted on these rails 14 act as rigid members, it is possible to have sufficient strength to withstand wind pressure. . In the above embodiment, the control unit 19
May be divided into remote control means that can be operated at hand by a worker and control reception and control means provided on the side of the lifting / lowering drive means 18, and the remote control means may use a code to perform the control reception and control using a code. An electrical configuration linked to the means may be used, or a cordless electrical configuration using an optical sensor or the like may be used. Further, in the above embodiment, the lifting drive means 18 is
A configuration using a manual mechanism such as a chain block and a brake mechanism may be adopted. In this case, similar to the above-described embodiment, it is preferable from the viewpoint of safety that the lifting / lowering drive means 18 include a lock means for fixing the worktable 17 to the rail 14 in a stopped state. Further, when the work table 17 is lowered while the rails 14 are being added, the rails 14
As a safety cable for preventing the cable from coming off, the work table 17 may be extended from the hanger 11 with a wire rope using a winch capable of controlling the amount of suspension for each length.

【The invention's effect】

As described in detail above, the temporary construction work device of the present invention constructs a safe scaffold because the parallel rails and the work table mounted on these rails act as rigid members. can do. A pair of hangers reciprocating along the longitudinal direction of the guide rails, rails suspended from these hangers and connectable in the longitudinal direction, and a worktable mounted on these rails so as to be able to move up and down. Thus, the work table can be lowered along the rail, and the upper end of the next rail can be added to the lower end of the rail, so that the work area can be sequentially expanded downward. The work table has the longitudinal direction of the guide rails and the longitudinal direction of the connected rails within the work area, and the work table can easily move in the left, right, up, and down directions within the work area. Construction of a large scale temporary scaffold can be made unnecessary. As a result, temporary preparation,
This makes it easier to clear things up, greatly reducing costs, labor costs, and construction time.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing one embodiment of the present invention, FIG. 2 is an enlarged sectional view of a part II in FIG. 1, FIG. 3 is an exploded perspective view of a casing of the lifting machine, and FIG. FIG. 5 is a plan view of the truss beam, FIG. 6 is a partially enlarged perspective view of the truss beam, FIG. 7 is a front view showing a part of a work device for erection work, FIG. 9 is a vertical sectional side view of the lifting drive means, FIG. 10 is a front view of the same, FIG. 11 is an enlarged perspective view of the extension means, FIG. 12 is a vertical sectional view showing traveling and stopping means on the hanger, FIG.
FIG. 13 is a perspective view showing an embodiment in which the rail has an L-shaped cross section, and FIG. 14 is a perspective view showing a meshing wheel when a pipe-shaped rail is used. 9 guide rail, 10 rack-shaped teeth, 11 hanger, 12 running means, 13 stop means, 14 rails
14X ... rail body, 14Y ... meshing part, 17 ... work table,
18 ... Elevating drive means, 19 ... Control unit.

Claims (1)

(57) [Claims] 1. A hanger rail (2) mounted along a structure, a hanger (5) movably mounted on the hanger rail (2), and a hanger (5) hung by the hanger (5). A second suspender (6) rotatably connected to the suspender (5) along a horizontal plane, and a truss beam (B) supported by the suspender (6). And a rack-like tooth (10) is provided in the longitudinal direction on the lower surface of the flange of the guide rail (9) located below the truss beam (B), and the rack-like tooth (10) is provided. A pair of hangers (11) which have two pin rolls (11B) and (11C) meshing with them and which reciprocate synchronously are mounted on the guide rail (9), and the hanger (11) is attached to the guide rail (9). To be able to reciprocate along A plate (14A), which is provided with a meshing portion (14Y) on the longitudinal front surface of the flange of the rail of the shape (14), and is capable of connecting the rail (14) to the upper and lower ends of the web in the longitudinal direction.
A plate (14A) located at the upper end of the rail (14) integrally formed with the rail (14B) is suspended from the lower surface of each of the hangers (11) and arranged in parallel, and a meshing portion (14Y) of the rail (14) is provided. The drive-side pin roll (18A) and the brake-side pin roll (18B) that move up and down while engaging with the gears, and the pin rolls (18A) and (18B)
A work table (17) having a plurality of lifting / lowering driving means (18) having a pinch roll (18C) for holding the rail (14) therein is mounted on the rail (14), and the work table (17) is mounted on the rail (14). The working device for temporary construction, characterized in that it can be moved up and down along the line.