KR102175558B1 - scaffold system - Google Patents

Abstract

The present invention relates to a scaffold apparatus. More specifically, an objective of the present invention is to obtain a scaffold apparatus having universality, safety, operating reliability, operating stability, user convenience, etc. The scaffold apparatus comprises: two or more rails arranged at prescribed intervals in a prescribed shape; a vertical reinforcing member installed on the outer edge of the rails to be integrated with the rails; a lift connected to the rails to ascend and descend; a first rope which starts from a first winding roller (helical groove can be formed on the surface) to sequentially pass through a first supporting roller mounted on both sides of the front of the lower surface of the lift and a first support roller at an upper portion of the vertical reinforcing member, so that an end thereof is fixed on a first fixing means at the upper end of the vertical reinforcing member; a second rope which starts from a second winding roller (helical groove can be formed on the surface) to sequentially pass through a second supporting roller mounted on both sides of the rear of the lower surface of the lift and a second support roller at an upper portion of the vertical reinforcing member, so that an end thereof is fixed on a second fixing means at the upper end of the vertical reinforcing member; and an actuator to simultaneously rotate a first driving shaft of the first winding roller and a second driving shaft of the second winding roller.

Description

Scaffold system

The present invention relates to a scaffolding apparatus having versatility, safety, reliability of operation, stability of operation and convenience of use.

The scaffolding device referred to in the present invention is a movable one mainly used in a construction site, and is usually used when installing a column form.

A general scaffolding device includes several vertical members arranged in a substantially rectangular shape; A horizontal member connecting each of the vertical members horizontally; A single or multi-stage work lift provided between the verticals and comprising two or more scaffolds fixed based on the horizontal member; It is configured to include a wheel mounted at the bottom of each of the vertical members. However, the above scaffolding device has a problem that the working position is limited because the height of the work lift is fixed.

In order to solve this problem, many scaffolding devices have been proposed that allow the height of the work lift to be adjusted. Typically, a method of adjusting the height of the work lift by winding or loosening the rope connected to the work lift on a reduction motor installed at the top, a method of connecting the work lift to a track-type chain such as a parking tower, and winding or unwinding the reduction motor at the bottom. There is a pulley method in which the rope is passed through a roller at the top of the frame supporting the lifting of the work lift and the roller at the top of the work lift, and then the end of the rope is fixed to the rope between the rollers.

However, the method of winding or unwinding the rope from the top and the parking tower method had a problem that the height of the work lift could not be extended. Since it is fixed at a lower position than the rollers of the frame, in the end, this method is also the same as the method of blackening or loosening the rope from the top, and thus has the same problems as the above methods.

On the other hand, in the above methods, since the rope or chain does not directly support the work lift, the safety of the work lift was quite suspicious, and furthermore, if the rope or chain is cut momentarily, there is a concern that the prevention of a fall accident of the work lift is not firmly established.

(KR) Patent Registration No. 1240317 (JP) Unexamined Patent Publication No. 2009-007737 (JP) Unexamined Patent Publication No. Hei 09-195497 (JP) Unexamined Patent Publication No. Hei 9-072086

The present invention has been invented to solve all the problems that appear in the work lift lifting method of the conventional scaffolding devices, and an object of the present invention is to make the support of the work lift firm, so that the control of the work lift can be stably, and It is to allow the maximum height to be extended as needed.

Another object of the present invention is to ensure that the work lift can be prevented from falling, and to allow it to be moved without dismantling so that it can be used in common for various works of construction.

The scaffolding device according to the present invention includes two or more rails arranged at regular intervals in a predetermined shape; A vertical stiffener installed on the outer side of the rail and integrated with the rail; A lift connected to the rail to move up and down; Starting from the first winding roller (the helical groove may be formed on the surface), the end is vertically passed through the first support rollers mounted on both sides in front of the bottom of the lift and the first support rollers on the upper side of the vertical reinforcement. A first rope fixed to the first fixing means on the upper end of the reinforcement; Starting from the second winding roller (helical grooves may be formed on the surface), the end is vertically passed through the second support rollers mounted on both sides behind the bottom of the lift and the second support rollers above the vertical stiffener. A second rope fixed to the second fixing means at the upper end of the reinforcement; It characterized in that it comprises a driver for rotating the first drive shaft of the first take-up roller and the second drive shaft of the second take-up roller at the same time.

On the other hand, the present invention relates to the above scaffolding apparatus, a starting plate inside a fixed plate formed on each post of a lift, a stop plate in which a seesaw is operated by the starting plate, and an outer stop groove connected to each rail of the support structure, the A suspension rod that penetrates the inner end of the stop plate and the bottom of the lift and its upper end protrudes to the upper surface of the stop plate, a pressure cam rotatably installed on the suspension bar, a pressure spring installed between the pressure cam and the stop plate, A lower open type box that is fixed to the bottom of the bottom of the lift and introduces the lower end of the suspension rod to the center, and the upper end is introduced into the opening of the box to move up and down along the inner surface of the box, and the lower end of the suspension rod is connected to the upper surface, and a first , It is characterized in that it comprises a stop device consisting of a support roller housing in which two support rollers are installed, and a compression spring installed between the upper surface of the support roller housing and the bottom of the lift floor.

In addition, the present invention provides the above scaffolding device, a lift for lifting along the rail by a rope that is wound and unwound on a driving winding roller; A floor with a center as a space, an opening formed at the rear of the floor and connected to the space, between the first fixed floor to the fourth fixed floor and each of the fixed floors, which are implemented at the corners of the floor and where each fixed footrest is seated It is also characterized in that it includes a lift 30 consisting of first and second variable floors on which each variable footrest is seated.

The present invention can raise or lift the lift by supporting both sides of the bottom of the lift with a rope, and by forming a space and rear openings in the center of the bottom of the lift, the present invention can be entered into the column form, and the space is front, rear, left and right Since the gap between the pillar form and the floor can be adjusted through the variable floor, there are effects such as versatility, convenience, stability, and safety in use.

On the other hand, in the present invention, since the support roller mounted in the passage section of the rope and the fixing means for fixing the rope end are detachably mounted on the vertical stiffener of the rail, when the length of the vertical stiffener is extended, the above support roller and the fixing means are mounted. It has the effect of extending the maximum ascent height of the lift by increasing the position.

In addition, according to the present invention, since a manual stop device and an emergency stop device are installed in the lift, the manual stop device can be operated when the lift is operated at a certain height to firmly fix the lift. When the rope is cut, the emergency stop device As a result, the fall of the lift can be automatically prevented, so the stability and safety of the lift operation can be guaranteed.

1 is an exemplary view showing the overall form of the present invention
2 is an exemplary view on the left side of FIG. 1
3 is an exemplary bottom view of FIG. 1
Figure 4 is an exemplary cross-sectional view of the edge of the support structure of the present invention
Figure 5 is an exemplary view of a part of the fixing means of the present invention
6 is an exemplary view of a part of the fixing plate of the present invention
Figure 7 (a) is an exemplary view of the take-up roller of the present invention
(B) is an exemplary cross-sectional view of (A)
8 is an exemplary view showing the general form of the lift applied to the present invention
9 is a plan view illustrating a state in which the footrest is removed from FIG. 8
10 is an exemplary view in which the footrest is separated in FIG. 8
11 is an exemplary view of a variable footrest
12 is a partial exemplary view of the stopping device of the present invention
13 is an exemplary front view of FIG. 12
14 is an exemplary view showing an action of a manual stop in the stop device of FIG. 12
15 is an exemplary view showing an action of an emergency stop in the stopping device of FIG. 12.

When described in detail together with the accompanying drawings, specific details for solving the means of solving the problems according to the present invention are as follows. However, the accompanying drawings may be exaggerated, omitted, or schematically illustrated for the convenience of explanation of the main parts, and terms and names used in the description are implicitly defined by the shape, function, role, etc. The description of the direction is determined based on the direction initially presented from the drawing initially presented, and the description of the position is determined inside and outside the center of each component or the center of the circle. In addition, since detailed descriptions of pre-registered known technologies and conventional technologies may obscure the subject matter, they are omitted or replaced with simple symbols or names.

In addition, the detailed structure, shape, shape, arrangement, size, etc. of the configuration that can be identified through the drawings, the operation of the configuration that can be inferred through the drawings, and the resulting effects may also obscure the subject, so a detailed description will be omitted. I can.

The scaffolding device according to the present invention is composed of a support structure 10, a lift 30, an elevating device 50, and a stopping device 60, and each configuration is described below.

<Support structure>

In the support structure 10, vertical stiffeners 111 and 112 are disposed at regular intervals on each outer periphery of rails 11a to 11d arranged in a square shape, and the rails 11a to 11d and vertical stiffeners 111 and 112 ) Is integrated by a connection plate 12 provided at equal intervals in the longitudinal direction, and the rail and the lower end of the vertical stiffener are fixed to the support plate 13 on which the wheels 131 and the support legs 132 are mounted, and each of the The vertical stiffeners are connected by neighboring vertical stiffeners and diagonal members 14, and mounting plates 20 are attached to the outside of the vertical stiffeners 111 and 112 at equal intervals in the longitudinal direction of the vertical stiffeners. Here, the number of vertical stiffeners is appropriate, and in this case, the arrangement form is preferably a rail and an equilateral triangle shape, and the diagonal member 14 has two intersecting shapes, so that both ends are wedges and a wedge on the mounting plate 20. It is fixed with the same mounting pin 21, and the crossing portion of the diagonal member 14 is configured to be rotatable so that when either end of the diagonal member is separated from the mounting plate, the diagonal member is erected around the crossing portion.

In the above supporting structure 10, the rails 11a to 11d are integrally configured with the vertical stiffeners 111 and 112 of the outer periphery, and the vertical stiffeners are connected to each other by a diagonal member 14, so that the vertical straightness of the rail is firmly Since both ends of the diagonal members 14 that are maintained and intersected are fixed to the mounting plate 20 with the mounting pins 21, the opening and closing of the opening 36 of the lift 30 described below as well as separation and disassembly work There is also an action that can be done quickly and conveniently. From the above, the opening 36 is used as the entrance of the lift 30 operator or the entrance of the pillar form when the support structure 10 is used for the pillar form.

<lift>

The lift 30 is a form of an upper open box in which vertical posts 31 and 32 are formed at each corner of the bottom floor 33, and a fence 38 is implemented between each of the posts 31 and 32, Rail grooves 391 connected to the rails 11a to 11d of the support structure 10 are formed at the top and bottom of each of the posts 31 and 32, and are provided in front and rear sides of the bottom edge of the bottom 33 1,2 support rollers 304 and 305 are mounted.

The upper lift 30 is installed between the rails 11a to 11d of the support structure 10 so that the rail groove 391 is connected to the rail so that it can rise or fall along the rail, and the lifting is performed by the first It is made by the first and second ropes 501 and 501' of the lifting device 50 passing through the bottom of the second supporting rollers 304 and 305. In the above, when the rail groove 391 is formed on the fixing plate 39 that is bound/fixed to the upper and lower ends of each of the posts 31 and 32, the frictional area with the rail can be reduced, so that the lifting of the lift can be smoothly performed. In addition, if one or more rail rollers 301 in contact with the rail surface are installed on the upper and lower fixing plates 39 on the upper and lower surfaces, the lift 30 can be more smoothly raised and lowered.

In addition, the center of the floor 33 of the lift 30 is a space 37, and the first fixed floor is constructed with a horizontal frame 331 and a vertical frame 332 at the corners of the floor 37 of the lift 30 To implement the fourth fixed floor (33a to 33d) so that the first and second variable floors (34, 35) are formed between each fixed floor, the fixed foot plate 302, each of the variable floor In the variable footrest 303, respectively, but the variable footrest 303 allows the locking plates 303a on both sides to be caught on the frames 331 and 332 of the fixed floor, so that the variable footrest 303 moves along the frame. By making it possible to change the width of the space 37 in the center of the floor 33. At this time, the auxiliary scaffold 303b is hinged on the outside of the variable scaffold 303 so that when the variable scaffold 303 moves in the direction of the space 37, the variable scaffold 303 moves to fill the void created outside. I can. In addition, each of the extension frames 41 and 42 are inserted into the horizontal frames 331 of the fixed floors 33a to 33d, and the outer ends of the extension frames 41 and 42 facing in the vertical direction are connected to the longitudinal connecting frames ( 43) to form a'C'-shaped extension floor 40 on the first and second variable floors 34 and 35, and the upper extension floor 40 is a variable footrest on both sides of the opening 36 It is to be able to further extend 303 in the direction of the central space 37.

Such a lift 30, if only the variable footrest 303 seated on the opening 36 side is removed, the central space 37 is connected to the external space, so that a work object such as a column form is transferred to the space 37. Since it can be introduced or removed, it can be used for work such as a column form, and the width of the space 37 can be adjusted by the variable footrest 303, so that the work object introduced into the space 37 (ultimately a column form) By removing or remarkably reducing the dangerous space (space where the worker's feet or body can pass) created between the surface and the inner end of the variable foot, it is possible to prevent safety accidents caused by the dangerous space (in the above description, And vertical are based on Fig. 9 showing the lift in plan).

<Elevating device>

The lifting device 50 includes first and second driving shafts 52 and 53 that are installed in front of the support structure 10 and rotate at the same time in the actuator 51, and first and second driving shafts installed at outer ends of the first and second driving shafts. The first and second support rollers 57 detachably mounted with mounting pins 21 on the mounting plate 20 at a certain height of the vertical stiffeners 111 on both sides of the winding rollers 54 and 54' in front of the support structure 10 , 58), first and second fixing means (55, 56) detachably mounted with a mounting pin 21 on the mounting plate 20 at a certain height of the vertical stiffener 112 on both rear sides of the support structure 10, The first and second support rollers (304, 305) are drawn out from the first and second take-up rollers (54, 54') and the bottom surfaces of the first and second support rollers (304, 305) before and after the first and second support rollers (56, 57) and the lift (30) It is configured to include first and second ropes (501, 501') whose ends are fixed to the first and second fixing means (55, 56) through sequentially. When the lifting device 50 is configured in this way, the first and second ropes 501 and 501' are fixed to the first and second support rollers 57 and 58 mounted at a predetermined height of the support structure 10 A support section (501a) is formed between the means (55, 56), and the support section (501a) supports the first and second support rollers (304, 305) on both sides of the lift (30). ) To fix the elevated position.

This lifting device 50 rotates the first and second take-up rollers 54 and 54' while rotating the first and second drive shafts 52 and 53 at the same time when the driver 51 is rotated forward or reverse. The first and second winding rollers can adjust the height of the supporting section 501a of the first and second ropes by winding or unwinding the first and second ropes 501 and 501' wound around them. Can be adjusted by height.

On the other hand, by installing a rotary table 542 to be rotatable at the rear of the frame 541 of the first and second winding rollers 54 and 54', and attaching a pressure roller 543 to the end of the rotary table 542 so as to rotate When the surface of the pressure roller is brought into contact with the first and second ropes 501 and 501' wound around the first and second winding rollers 54, 54' using a spring, the pressure roller 543 rotates and Since it is possible to revolve in the rear upward direction, even if the first and second ropes 501 and 501' are cut at once and a natural loosening phenomenon (backlash) occurs in the rope of the take-up roller, the backlash can be prevented. . In other words, since the pressure roller is always in contact with the rope surface by the spring, backlash is prevented.

Next, if the weight 59 is installed in the support section 501a of the first and second ropes 501 and 501' so that the weight 59 can move freely along the support section 501a, the lift is lifted for safety. When stopping the position of (30) by relying on the support structure (10), the tension of the support section (501a) of the first and second ropes (501, 501') becomes loose, in this case, due to the weight of the weight (59). Since the tension of the support section can be maintained, the rope backlash of the take-up roller is prevented by the release of the tension of the support section. In addition, the first and second fixing means (55, 56) and the first and second support rollers (57, 58) are mounted on the mounting plate 20 formed on the vertical stiffeners (111, 112) of the support structure (10) As the height of the vertical stiffener is extended and the rail is also extended, the height of the fixing means and the support roller can be continuously increased, which is the highest that the lift 30 can ascend. The height can be extended as needed.

Briefly summarizing the lifting device 50 as described above, the support section 501a of the first rope 501 supports one side of the bottom of the lift 30, and the support section 501a of the second rope 501' Supports the other side of the bottom of the lift 30, and the first and second ropes 501, 501' are wound or unwound on the first and second winding rollers 54, 54', respectively, but winding or unwinding proceeds simultaneously Therefore, the lift 30 can rise or fall horizontally.

<Stop device>

The stop (brake) device 60 makes it possible to fix the upper part of the lift 30 depending on the rails 11a to 11d of the support structure 10 when working by stopping the lift 30 at an arbitrary position. A manual stop device to manually and firmly maintain the lifting position of the lift, and an emergency stop device that automatically emergency stops the lift when the first and second ropes (501, 501') are cut unexpectedly when the lift 30 is operated. It consists of.

The manual stop device is operated by the starting plate 61 inside the fixed plate 39 formed on the respective posts 31 and 32 of the lift 30, the starting plate 61, and the stop groove on the outside The stop plate 62 connected to each rail 11a to 11d of the support structure 10, the inner end of the stop plate 62 and the bottom 33 of the lift 30, and the upper end thereof 621 The stop plate 62 is installed between the suspension rod 63 protruding to the upper surface, the pressure cam 64 rotatably installed on the suspension rod 63, and the pressure cam 64 and the stop plate 62 It consists of a pressure spring (65). In the above manual stopping device, the pressure cam bottom 641 at the upper end of the suspension rod 63 is in contact with the upper surface of the pressure spring 65, so that the suspension rod 63 is prevented from falling.

When the upper part of the lift 30 is firmly fixed using the above manual stop device, as shown in FIG. 14, when the pressure spring 65 is pressed to the high point 642 of the pressure cam 64 by rotating the pressure cam 64, As the pressure spring 65 is compressed, the inside of the stop plate 62 is pressed, and the stop plate 62, which is pressed inside, operates with a seesaw on the inside in the downward direction and the outside in the upward direction around the base plate 61. , When the stop plate 62 operates as a seesaw, the outer stop groove 621 of the stop plate 62 is tilted and the inner surface of the stop groove 621 contacts the outer surface of the rails 11a to 11d and is caught at the same time, so that the stop plate 62 ) Can be fixed on the rail. Therefore, the floor 33 of the lift 30 is supported by the support section 501a of the rope passing through the support roller to maintain the lift position, and the upper part of the lift is railed by the stop plate 62 acting as above. Since it is fixed to (11a to 11d), it is possible to prevent the lift from falling during the lift operation, as well as to prevent shaking of the lift whose elevation position depends only on the rope.

In the above manual stop device, connect an extension bar 631 with a diameter larger than the diameter of the suspension bar to the top of the suspension bar 63 protruding from the top of the stop plate 62 to rotate the pressure cam 64 on the top of the extension bar 631 It can be mounted so as to be possible, and a gripping plate 643 is integrally formed inside the pressing cam 64 to facilitate manual rotation of the pressing cam 64, and the pressing cam 64 And the upper surface of the pressure spring 65 between the upper surface of the stop plate 62 covers a cover 651 in contact with the pressure cam 64, so that the cover 651 can be lifted in the longitudinal direction of the extension bar 631 And, the lower part of the pressure spring 65 is to be supported by the support plate 652 placed on the upper surface of the stop plate 62, and between the upper surface of the support plate 652 and the lower end of the extension bar 631, the pressure cam 64 and the stop It is possible to employ a spacing retainer 66 that maintains the spacing between the plates 62.

The above emergency stop device includes the upper manual stop device and the lower open type box 67, which is fixed to the bottom of the floor 33 of the lift 30 and introduces the lower end of the suspension rod 63 to the center. The upper end is introduced into the opening 671 to elevate along the inner surface of the box 67, the lower end of the suspension rod 63 is connected to the upper surface, and the first and second support rollers 304 and 305 are installed at the lower side. It comprises a housing 68 and a compression spring 69 installed between the upper surface of the support roller housing and the lower surface of the lift floor 33. In the above, by passing through the bolt 681 at the top of the support roller housing 68 through the long holes 672 formed on both side walls of the box 67, the combination of the support roller housing 68 and the box 67 is promoted, and the support roller The lifting of the housing 68 is also achieved.

The above emergency stop device supports the first and second support rollers 304 and 305 when the first and second ropes 501 and 501 ′ or any one of the ropes are cut while raising and lowering the lift 30. When the support of the rope support section 501a is lost and the support of the support section is lost, the support roller housing 68 descends along the inner surface of the box 67 by the elastic force of the compression spring 69 as shown in FIG. , When the support roller housing 68 descends, the suspension rod 63 fixed on the upper surface of the support roller housing also descends at the same time, and the stop plate 62 is operated by pulling the inside of the stop plate 62 of the manual stop device. When the stop plate 62 operates as a seesaw, the stop plate 62 makes the upper part of the lift 30 fixed by relying on the rails 11a to 11d like a manual stop device, so that even if the rope is cut, the lift 30 ) Can be stopped. The pulling action of the inside of the stop plate 62 from above is that the pressure cam 64 of the manual stop device is connected to the upper end of the suspension bar 63, so that the pressure cam is pulled at the same time as the suspension bar, and the pulled pressure cam 64 is pressed. It occurs by pulling the inner upper surface of the spring 65 and the stop plate 62. Eventually, when the suspension rod 63 is pulled, no operation occurs between the pressure cam, the compression spring, and the stop plate, and the stop plate 63 operates as a seesaw in a coupling relationship with each other.

This invention described above has been described based on the drawings and drawings of the configuration of the present invention and specific components included in the configuration in order to help understanding the principle and the principle of the configuration to be pursued in the present invention, The structure, shape, shape, arrangement, direction, and quantity are determined in consideration of the principle to be pursued for the configuration and its specific components included in the present invention, and this may be variously changed as necessary. The configuration and its specific components presented in this invention illustrate the effect that a person skilled in the art wants to obtain from this invention and which principle is most preferable to apply in order to obtain a better effect from the effect. I did it. Accordingly, this invention is most preferable to complete this invention including all the above-described configurations, but it can be completed by selecting or excluding some of the above-described configurations according to cost reduction, convenience of manufacturing, environmental conditions, or needs. Alternatively, one or part of the composition can be separated and merged with another composition to complete. In addition, each configuration described above may be independently applied to other technical fields other than this technical field in consideration of the principle, use, function, role, action, effect, etc. Based on this, the scope of the rights of the present invention can be specified in the broadest order of the scope of the rights by specifying the scope of the claims of this invention as follows.

10: support structure 11a to 11d: rail
111, 112: vertical stiffener 12: connecting plate
13: support plate 131: wheel
132: support leg 14: daegakjae
20: mounting plate 21: mounting pin
30: lift 31, 32: holding
33: floor 33a to 33d: fixed floor
331: horizontal frame 332: vertical frame
34: first variable floor 35: second variable floor
36: opening 37: space
38: fence 39: fixing plate
391: rail groove 301: rail roller
302: fixed footrest 303: variable footrest
303a: locking plate 303b: auxiliary footrest
304: first supporting roller 305: second supporting roller
40: extension floor 41, 42: extension frame
43: connecting frame 50: lifting device
51: actuator 52: first drive shaft
53: second drive shaft 54: first take-up roller
54': second winding roller 541: frame
542: rotating table 543: pressure roller
55: first fixing means 56: second fixing means
57: first support roller 58: second support roller
501: first rope 501': second rope
501a: support section 59: ed
60: stop device 61: start plate
62: stop plate 621: stop groove
63: suspension rod 631: extension rod
64: pressure cam 641: low point
642: high point 643: gripping plate
65: pressure spring 651: cover
652: base plate 66: gap maintenance
67: box 671: opening
672: long hole 68: support roller housing
681: bolt 69: compression spring

Claims (10)

At least two rails (11a to 11d) arranged in a constant shape at regular intervals;
Vertical stiffeners 111 and 112 installed outside the rails 11a to 11d and integrated with the rails;
A floor 37 that is connected to the rails 11a to 11d to move up and down and has a center space 37, an opening 35 formed behind the floor and connected to the space 37, the floor 37 ) The first to the fourth fixed floor (33a to 33d) on which the fixed footrests 302 are seated and the first to be implemented between the fixed floors, respectively, in which the variable footrests 303 are seated, A lift 30 composed of two variable floors 34 and 35;
Starting from the first take-up roller 54, the first support rollers 304 mounted on both sides of the bottom front of the lift 30 and the first support rollers 57 above the vertical stiffeners 111 and 112 are sequentially A first rope (501) whose ends are fixed to the first fixing means (55) at the upper end of the vertical stiffeners (111, 112) via a passage;
Starting from the second take-up roller (54'), the second support rollers 305 mounted on both sides behind the bottom of the lift 30 and the second support rollers 58 above the vertical stiffeners 111 and 112 are sequentially A second rope (501') whose ends are fixed to the second fixing means (56) at the upper end of the vertical stiffeners (111, 112) via
A scaffolding apparatus comprising: a drive (51) for simultaneously rotating the first drive shaft (52) of the first take-up roller (54) and the second drive shaft (53) of the second take-up roller (54'). Scaffolding device comprising a.
The method of claim 1, wherein a plurality of mounting plates (20) are formed at equal intervals in the longitudinal direction of the vertical stiffeners on the vertical stiffeners (111, 112), and the first and second winding rollers (54,) are formed on any one of the mounting plates (20). 54') and the first and second fixing means (55, 56) are detachably mounted.
The method of claim 1, wherein a weight 59 is installed in the support section 501a of the first and second ropes 501 and 501' supporting the first and second support rollers 304 and 305 of the lift 30. Scaffolding device, characterized in that the weight (59) is freely movable along the rope.
The method according to claim 1, wherein vertical posts (31, 32) are installed at the corners of the bottom (33) of the lift (30), and rails (11a to 11d) at the top and bottom of each of the posts (31, 32) Scaffolding apparatus, characterized in that the fixing plate (39) having the rail groove (391) to be connected is bound.
delete At least two rails (11a to 11d) arranged in a constant shape at regular intervals;
A lift 30 that goes up and down along the rails 11a to 11d;
A seesaw is operated by the starting plate 61 inside the fixing plate 39 formed on each of the posts 31 and 32 of the lift 30, and the starting plate 61, and the stopping groove 621 on the outside is supported. The stop plate 62 connected to each of the rails 11a to 11d of the structure 10, the inner end of the stop plate 62 and the bottom 33 of the lift 30 pass through the upper end of the stop plate 62 ) A suspension rod (63) protruding to the upper surface, a pressure cam (64) rotatably installed on the suspension rod (63), a pressure spring (65) installed between the pressure cam (64) and the stop plate (62) ), the bottom of the lift 30 is fixed to the bottom of the bottom 33, the bottom of the suspension rod 63 is introduced to the center of the lower open type box 67, the top is introduced into the opening 671 of the box 67 A support roller housing (68) on which the first and second support rollers (304, 305) are installed and the support roller is raised and lowered along the inner surface of the box (67), and the lower end of the suspension rod (63) is connected to the upper surface. Scaffolding device, characterized in that it comprises a stop device (60) consisting of a compression spring (69) installed between the upper surface of the housing (68) and the bottom surface of the lift floor (33).
delete At least two rails (11a to 11d) arranged in a constant shape at regular intervals;
A lift 30 that goes up and down along the rails 11a to 11d;
A floor 37 having a center as a space 37, an opening 35 formed at the rear of the floor and connected to the space 37, and a fixed footrest 302 each implemented at a corner of the floor 37 A lift consisting of first to fourth fixed floors (33a to 33d) to be seated and first and second variable floors (34, 35) implemented between each of the fixed floors to each of which the variable footrests 303 are seated ( 30) scaffolding device comprising a.
The method of claim 8,
Each of the extension frames 41 and 42 is inserted into the horizontal frame 331 of the fixed floors 33a to 33d, and the outer ends of the extension frames 41 and 42 are integrated into the longitudinal connecting frame 43 ,2 Scaffolding device, characterized in that the extended floor 40 is formed on the variable floors 34 and 35.
The method of claim 8,
Scaffolding device, characterized in that the auxiliary footrest (303b) is hingedly mounted on the outside of the variable footrest (303).

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