JP2010229728A - Liftable moving scaffolding - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liftable moving scaffolding enabling a worker to go up and down a lifting ladder more safely. <P>SOLUTION: The liftable moving scaffolding is configured to stack horizontal frames in a plurality of stages on a rectangular base frame having wheels on the ground surface, through slider cranks, and providing a plurality of posts continuously on both side faces between the respective frames after extending the slider cranks provided between the respective frames. The plurality of continuous posts on one side face at least out of the posts between the respective frames serve as the lifting ladder to a work floor, and a backrest is provided on the way. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an elevating type mobile scaffold used for interior and exterior construction and the like, which is improved in safety when an operator moves up and down.

  The vertical moving scaffold can be expanded and contracted in the vertical direction, so it can be stored and transported at a low height, moved horizontally to a predetermined location, fixed at that location, and then lifted to a predetermined height. By extending the type moving scaffold and fixing its height, work such as interior and exterior construction can be performed at a predetermined height at a predetermined location.

  Such horizontal movement and fixing of the liftable moving scaffold is often performed by providing a wheel with a brake lock on the ground contact surface of the liftable moving scaffold and further fixing it with an outrigger. The vertical expansion and contraction is performed by directly moving the work table up and down or by installing the work table on a foldable arm and extending and fixing the arm.

  After such an elevating type moving scaffold is extended at a predetermined place, an operator works at a high place. Therefore, a handrail is required for the workbench in order to prevent the worker from falling from a high place. The handrail of the workbench may be attached in advance to the liftable moving scaffold before moving to a predetermined location, or may be attached after moving to a predetermined location. In this case, the handrail is attached in a state in which the lifting and lowering moving scaffold is contracted in the vertical direction, that is, after the handrail is safely attached while the work table is in a low position, the lifting and lowering moving scaffold is extended in the vertical direction. Therefore, the worker can work safely at a high place.

  In addition, since such a lifting and lowering type moving scaffold can be expanded and contracted in the vertical direction, when storing the lifting and lowering type moving scaffold, the storage space in the height direction can be saved by reducing its height. Can do. It has been proposed not only to lower the height by allowing the lifting / lowering moving scaffold to move up and down, but also to save the storage space in the width direction by allowing the work floor of the lifting / lowering moving scaffold to be foldable.

  In Patent Document 1, a plurality of horizontal frames (frame bodies) are sequentially stacked via an X-shaped slider crank on a rectangular base frame (frame body) having wheels on a ground contact surface, and for lifting and lowering. An elevating mobile scaffold with a ladder is disclosed. The X-shaped slider crank can be folded and extended, and by manually extending and retracting the X-shaped slider crank, the work floor can be raised and lowered, and its height can be fixed in stages. Is possible. Here, the raising / lowering trap also serves as a support between the frames after extending the slider crank.

  1 and 2 show an example of a liftable moving scaffold that has been put into practical use based on the technique disclosed in Patent Document 1. FIG. (a) is a front view, (b) is a right side view. FIG. 1 shows a state in which all three X-shaped slider cranks 50 are extended in the vertical direction in a state where the lifting type moving scaffold is fixed at a predetermined position, and FIG. A state when all of the three X-shaped slider cranks 50 are folded in the vertical direction is shown.

  This elevating type mobile scaffold is composed of a rectangular base frame 5 that has wheels on a ground contact surface and can be moved and fixed to a predetermined place, and a plurality of horizontal frames 40 that can be raised and lowered. The uppermost horizontal frame 40 also serves as a work floor frame. The uppermost horizontal frame 40 is provided with a work floor made of a meshed plate, a striped plate or the like and a handrail or the like. A base 60 is formed.

  At the four corners of a rectangular base frame (frame body) 5, support posts 7 of the base frame are erected, and wheels 6 with brake locks are attached to the lower ends thereof. In addition, an outrigger 76 having a jack base 75 at the tip is attached to the side surface of each column 7 of the base frame, and is installed so as to be able to rotate in the horizontal direction around each column 7 of the base frame. Yes. The liftable moving scaffold is moved by releasing the brake lock of the wheel 6 and pushing the liftable moving scaffold horizontally while keeping the jack base 75 lifted. This movement is usually made with the horizontal frame 40 folded in the vertical direction. Then, after moving to a predetermined place, the brake lock of the wheel 6 is applied, and the jack base 75 is grounded to be fixed at the predetermined place.

  On the rectangular base frame 5, there are provided three steps of a rectangular horizontal frame 40 that can be moved up and down at intervals, and two diagonal members are crossed between each frame to be axially attached. Two X-shaped slider cranks 50 are erected in the vertical direction. Here, the base frame 5 also serves as the lowermost horizontal frame, but a lowermost horizontal frame 40 may be provided separately from the base frame 5. When the lowermost horizontal frame 40 is provided separately from the base frame 5, the base frame 5 and the horizontal frame can be separated. Therefore, the upper member including the horizontal frame can be removed from the base frame when moving and transporting the lifting and lowering moving scaffold, so that the work becomes easier and the space is used effectively for storage. Can do.

  A work table 60 is installed on the uppermost horizontal frame 40. Handrail pillars 62 are installed at the four corners of the uppermost horizontal frame 40, handrail bars 63 are attached between adjacent handrail pillars 62, and baseboards 64 are attached on the four sides. Thus, the assembly of the work table 60 is completed. In addition, the assembly of the work table 60 may be performed before the movement, or may be performed after the movement. Here, the uppermost horizontal frame 40 also serves as a work floor frame, but a work floor frame may be provided separately from the uppermost horizontal frame 40. When a work floor frame is provided in addition to the uppermost horizontal frame 40, the entire work table 60 including the work floor can be removed when storing and transporting the liftable moving scaffold.

  As described above, when the lowermost horizontal frame 40 is provided separately from the base frame 5, the upper member (including the work table 60) including the horizontal frame can be removed from the base frame. Therefore, even when a work floor frame is not provided separately from the uppermost horizontal frame 40, the work for moving and transporting the lifting and lowering movable scaffolding is facilitated and the space is effective for storage. Can be used for

  The raising and lowering of the lifting type moving scaffold is performed by sliding two diagonal members of an X-shaped slider crank 50 provided between the frames in the horizontal direction. That is, when the X-shaped slider crank extends upward, the upper horizontal frame rises. Conversely, when the X-shaped slider crank contracts downward, the upper horizontal frame descends. .

  And when raising the elevating type moving scaffold, after extending the X-shaped slider crank upwards, from the long member 70 and the cross member 71 which are respectively attached to the both side surfaces between the frames so as to be erected. The height of the upper horizontal frame 40 is fixed by supporting the upper horizontal frame 40 with the supporting column 69. This operation is repeated in each stage of the slider crank until the uppermost horizontal frame 40 rises to a predetermined height. On the other hand, when lowering the lifting type moving scaffold, the support of the upper horizontal frame 40 is removed by first pushing the column 69 made of the long member 70 and the cross member 71 inward, and then the X-shaped of the step is made. The slider crank is contracted downward to lower the height of the upper horizontal frame 40, and the height is fixed by the fastener 52. This operation is repeated in each stage of the slider crank until the uppermost horizontal frame 40 is lowered to a predetermined height.

  Taking the lowermost X-shaped slider crank 50 as an example, the structure of the X-shaped slider crank will be described in detail. The intersection of the two diagonal members is pivotally attached by a pin 51 and the two diagonal members are The left ends are respectively attached to the long sides of the upper and lower frames. Therefore, the right ends of the two diagonal members can be moved and fixed in the horizontal direction along the long sides of the upper and lower frames, respectively, and after the slider crank 50 is extended upward, there is a gap between the upper and lower frames. The upper horizontal frame 40 can be fixed at a predetermined height by supporting the upper horizontal frame 40 by the columns 69 attached to the both side surfaces so as to be erected. Further, after the slider crank 50 is contracted in the downward direction, the upper horizontal frame 40 can be fixed at the height by rotating the fastener 52 upward and fixing it to the inside.

  In this example, since the uppermost horizontal frame 40 of the lifting / moving platform also serves as a work floor frame, the uppermost horizontal frame 40 is extended after the uppermost X-shaped slider crank 50 is extended upward. The long member 70 of the support column 69 for supporting the uppermost horizontal frame 40 is supported by the uppermost horizontal frame 40 via a lateral member 41 provided at the lower part of the uppermost horizontal frame 40. Fix at a predetermined height.

  On the other hand, when a work floor frame is provided separately from the uppermost horizontal frame 40, the uppermost horizontal frame 40 is supported after the uppermost X-shaped slider crank 50 is extended upward. Since the long member 70 of the support column 69 for supporting the uppermost horizontal frame 40 is directly supported by the uppermost horizontal frame 40, the uppermost horizontal frame 40 can be fixed at a predetermined height. There is no need to provide the transverse member 41.

  In this way, the worker moves the lifting / moving scaffold to a predetermined position, fixes the lifting / moving scaffold at that position, and then performs the extension work of the X-shaped slider crank 50 at each stage. Then, after the uppermost horizontal frame 40 is raised and fixed to a predetermined height, the lifting / lowering trap composed of the support columns 69 is climbed to the work table 60 to perform work such as interior and exterior work.

  1 and 2, the maximum height from the ground to the work floor is 2.5 m when all three X-shaped slider cranks are vertically extended, and When all three X-shaped slider cranks are folded vertically, the minimum height from the ground to the work floor is 0.9 m. Therefore, by appropriately combining the extension and folding of the X-shaped slider crank, the height of the work floor of the liftable moving scaffold can be fixed to a predetermined height suitable for each work.

Japanese Utility Model Publication No. 6-36167

  As described above, the lifting and lowering movable scaffold disclosed in Patent Document 1 is moved horizontally to a predetermined location, fixed at that location, and then extended and fixed to a predetermined height. A worker climbs an elevating trap that is composed of support columns and goes up to a work table to perform work such as interior and exterior construction. And since the handrail is attached to the workbench in order to prevent the worker from dropping from a high place, the worker can work safely even if the workbench is at a high place.

  However, the worker needs to climb a lifting trap composed of support columns in order to go up to the workbench, but this lifting trap is installed vertically at both ends of the main body of the lifting mobile scaffold. Will climb vertically outside the main body of the mobile platform. It is normal to use a safety belt when raising and lowering workers, but when the safety belt is not used or when the hook is changed during the lifting even if the safety belt is used, There was a risk of falling off the tarp and possibly falling to the ground.

  When the distance from the ground to the work floor is as short as about 1 m, it is not so dangerous to lose your posture and lift your foot off this trap when it is moving up and down. However, even in the liftable moving scaffold illustrated in FIG. 1, the maximum height from the ground to the work floor is 2.5 m. And recently, in order to expand the work range in the liftable moving scaffold, it is required to increase the maximum height of the work floor from the ground to about 3.6 m, or even about 4.5 m. . To raise the working floor of the lifting and lowering movable scaffolding, it is possible to increase the number of steps of the lifting and lowering moving scaffolding and the number of slider cranks, or increase the size of the slider crank. Since the lifting and lowering traps composed of the pillars become longer and the lifting position of the worker becomes higher, the opportunity for the worker to step off the lifting and lowering traps increases, and the posture collapses during the lifting and lowering. Increased risk of stepping off.

  An object of the present invention is to provide an elevating type moving scaffold that enables an operator to raise and lower an elevating trap more safely.

  The inventors of the present invention have made various studies in order to develop an elevating type moving scaffold that improves the safety of an operator when elevating. As a result, the following findings (a) to (e) were obtained.

  (a) In the above-described lifting mobile scaffold, the lifting traps composed of the support pillars are installed at both ends of the lifting mobile scaffold main body, so that the outside of the lifting mobile scaffold main body is climbed vertically. Therefore, if the worker did not use the safety belt, or if the hook could be hooked up and down even if the safety belt was used, the posture would be lost and the foot would be lifted from the lifting trap. Considering that there is a possibility of dropping to the ground in some cases, it is conceivable to have a structure that does not fall to the ground even if an operator steps off the foot.

  For example, if an elevating trap is installed inside the main body of the elevating mobile scaffolding and a hatch that can be opened and closed is attached to the center of the work floor, the worker can install the elevating trap installed inside the main body of the elevating mobile scaffold. You can climb and open the hatch to reach the workbench.

  However, since the inside of the main body of the liftable moving scaffold is occupied by an extendable slider crank, it is difficult to secure a space that allows an operator to move up and down.

  It is possible to increase the size of the main body if it is only necessary to secure a space in which the worker can move up and down inside the main body of the lifting type moving scaffold. However, the lifting and lowering moving scaffolds are limited in weight and size so that they can be used and moved in general buildings. In particular, the width of the liftable moving scaffold is limited by the width of a door (about 0.9 m) in a general building and the size that can be loaded on an elevator. Therefore, it is difficult to increase the size of the main body in order to secure a space in which the worker can move up and down in the main body of the lifting type moving scaffold.

  (b) Also, in order to prevent the worker from falling to the ground even if he loses his / her posture, he / she has to climb up / down the lifting / lowering trap at a high place. In this state, it is conceivable that the operator can manually extend the slider crank after climbing the raising / lowering trap and rising to the work table.

  However, if this method is to be realized manually, the extension operation time becomes longer as the height of the work floor of the elevating type moving scaffold becomes higher, so the work burden on the worker increases. Therefore, it can be applied to a lifting platform with a short distance from the ground of the lifting platform to the working floor, but it should be applied to a lifting platform with a long distance from the ground to the working floor of the lifting platform. Is not realistic.

  And, if this method is replaced with manual operation by using hydraulic pressure or electric power, it is necessary to adopt a more complicated mechanism than the slider-crank type lifting and lowering moving scaffold, so the weight, ease of handling, This is disadvantageous in terms of maintainability.

  (c) Therefore, in a lifting platform that can be used and moved in general buildings and can extend the work platform to a high place, it is necessary to improve the safety of workers when moving up and down. Even if it exists, it is preferable to install the raising and lowering traps at both ends of the main body of the lifting and lowering moving scaffold. In addition, the lifting and lowering moving scaffold is moved horizontally to a predetermined position, and is fixed in the place. After extending and fixing the crank type lifting / moving scaffold, it is preferable that the worker climbs the lifting / lowering lap composed of the pillars and goes up to the work table to perform work such as interior and exterior construction.

  In this way, as a result of studying to improve the safety of the worker when ascending and descending while taking advantage of the slider crank type ascending / descending type moving scaffolding, the worker can In order to prevent falling to the ground even if the foot is removed, the idea is that a backrest should be provided in the middle of the raising / lowering trap that is composed of support columns.

  If a backrest is installed in the middle of a lifting trap composed of support columns, the posture will be lost when the worker does not use the safety belt or when the hook is hooked up and down even if the safety belt is used. However, since the back support will catch it, it will not fall backwards, so the risk of stepping off from the elevation lift on the height is reduced.

  (d) The backrest installed in the middle of the raising / lowering trap can be formed, for example, by extending a horizontal frame between continuous columns constituting the raising / lowering trap in the long side direction. Also, it is preferable to install a backrest between the uppermost support column and the work floor. In this case, the backrest can be formed by extending the uppermost horizontal frame in the long side direction. Or you may attach a back support to the continuous support | pillar which comprises the raising / lowering trap for a right angle.

  This backrest is required when the lifting / lowering moving scaffold is extended in the vertical direction, but is not required when the lifting / lowering moving scaffold is folded in the vertical direction. Therefore, it is preferable that the backrest can be housed or folded in a member constituting the liftable moving scaffold. For example, when forming the uppermost horizontal frame by extending it in the long side direction, the backrest can be stored in the horizontal frame when storing and transporting the lifting movable scaffolding, and the lifting movable scaffolding is vertical. It is preferable that the back support is pulled out from the horizontal frame after being stretched. In addition, when attaching the backrest to the continuous support strut that constitutes the lifting trap at a right angle, the backrest should be folded to follow the support when storing and transporting the lifting mobile scaffold. It is preferable to use the backrest by extending it perpendicularly from the support after extending in the vertical direction.

  In addition, although the dimension of the backrest installed in the middle of the raising / lowering trap is not specified in particular, the depth may be 50 cm or more so that the worker can easily raise and lower the trap. A preferred dimension for the depth of the backrest is 55-65 cm. The width of the backrest is the same as the widthwise dimension of the horizontal frame when it is formed by extending the horizontal frame in the long side direction, and the width of the strut when the backrest is attached to the post at a right angle That is, it is the same as the length of the horizontal member of the horizontal frame and is preferably about 50 to 90 cm.

  Further, the backrest can be formed of the same member as the horizontal frame or the support or a member equivalent thereto. Specifically, it can be formed from, for example, a steel pipe or an aluminum pipe.

  (e) The place where the backrest is to be installed on the lifting trap is not particularly specified, but the backrest is installed between the supports that are higher than the worker's height among the lifting traps composed of the supports. It is preferable to do this. It is also preferable to install a backrest between the uppermost support column and the work floor.

  The backrest may be installed in the middle of the raising / lowering trap. One of the raising / lowering traps installed at both ends of the lifting / moving scaffold main body may be used, but both raising / lowering traps may be used. It can be installed on the lap

  However, if the backrest is installed in the middle of the raising / lowering trap only in one raising / lowering trap, the worker is allowed to climb up and down only the raising / lowering trap provided on the way, It is preferable that the other raising / lowering trap without the back support be constructed so that it cannot be climbed up and down. For example, the lifting trap with the back support is composed of a longitudinal long member and a cross member, while the trap without the back support is composed of a longitudinal long member and a diagonal member. Since the ladder function of the person who does not provide the ladder is killed, the worker can be prevented from climbing up and down the person who does not provide the back support.

  In addition, the weight and size of the lifting and lowering movable scaffolding are limited so that they can be used and moved in a general building, and in particular, the width of the lifting and lowering movement scaffolding is the width of the door (usually about 0.1 mm). 9m), it is difficult to expand. Therefore, it is difficult to increase the width of the main body of the lifting and lowering moving scaffold, but by using a foldable work floor, the lifting and lowering moving scaffold is moved to a predetermined place, and after fixing, the work floor is expanded in the width direction. It is possible. For example, the work floor is composed of a fixed main body and a movable widening part. Normally, the movable widening part is folded upward on the main body side, and when the worker climbs the work table and works, The area of the workbench can be expanded by making the part expanded.

  The lifting and lowering type moving scaffold that enables the worker to lift and lower the lifting trap more safely is completed based on these findings, and the present invention includes the following (1) to ( The gist of the lifting / moving scaffold of 9).

  (1) On a rectangular base frame with wheels on the ground contact surface, a plurality of horizontal frames are stacked in sequence via a slider crank, and the slider crank provided between the frames is extended between the frames. A lifting and lowering movable scaffolding that can be continuously provided with a plurality of columns on both side surfaces, and the columns that are continuous on at least one side of the columns between the frames are raised and lowered to the work floor. A lifting and lowering type moving scaffold characterized by having a backrest in the middle.

  (2) The lifting and lowering movable scaffold according to (1) above, wherein the column is composed of two long members and a cross member connecting these long members.

  (3) On a rectangular base frame with wheels on the ground contact surface, a plurality of horizontal frames are stacked in sequence via a slider crank, and the slider crank provided between the frames is extended between the frames. A lifting and lowering movable scaffolding that can be continuously provided with a plurality of pillars on both sides, and among the pillars between the frames, the plurality of pillars that are continuous on one side are raised and lowered to the work floor. A lifting and lowering movable scaffolding that also serves as a trap for a vehicle, has a backrest in the middle, and a plurality of continuous columns on the other side do not have a role of a lifting trap.

  (4) The strut that also serves as the lifting trap is composed of two long members and a cross member that connects these long members, and the strut that does not serve as a lifting trap has two long members and these long members. The lifting and lowering movable scaffolding according to (3) above, characterized in that it is made of diagonal materials connecting the two.

  (5) The liftable moving scaffold according to any one of (1) to (4), wherein the backrest is formed by extending a long side of the horizontal frame.

  (6) The backrest can be stored in the long side of the horizontal frame, and the backrest is pulled out from the horizontal frame after the elevating moving scaffold is extended in the vertical direction. Elevating mobile scaffolding.

  (7) The elevating movable scaffold according to any one of (1) to (4) above, wherein the backrest is attached to the column at a right angle.

  (8) The backrest is foldable so as to follow the support, and the backrest is extended and used at right angles from the support after extending the lifting and lowering moving scaffold vertically (7) Elevating mobile scaffolding.

  (9) The lifting / lowering type according to any one of (1) to (8) above, wherein the work table has a horizontal main body part and one or a plurality of widened parts provided on the side of the main body part. Moving scaffold.

  The lifting / moving platform according to the present invention enables the worker to lift and lower the lifting trap more safely.

It is an example of the raising / lowering type moving scaffold utilized practically based on the technique disclosed by patent document 1, and shows the state extended | stretched to the orthogonal | vertical direction. (a) is a front view, (b) is a right side view. The state which folded the raising / lowering type mobile scaffold of FIG. 1 to the perpendicular direction is shown. (a) is a front view, (b) is a right side view. It is an example of the raising / lowering type moving scaffold which concerns on this invention, and shows the state extended | stretched to the orthogonal | vertical direction. (a) is a front view, (b) is a right side view, and (c) is a plan view of a second horizontal frame from the top. The state which folded the raising / lowering type mobile scaffold of FIG. 3 to the orthogonal | vertical direction is shown. (a) is a front view, (b) is a right side view, and (c) is a plan view of a second horizontal frame from the top. Fig. 4 shows a state in which the lifting and lowering moving scaffold in Fig. 3 is folded in the vertical direction and the handrail is further removed. (a) is a front view, (b) is a right side view, and (c) is a plan view of a second horizontal frame from the top. It is another example of the raising / lowering type moving scaffold which concerns on this invention, and shows the state extended | stretched to the orthogonal | vertical direction. (a) is a left side view, (b) is a front view, (c) is a right side view, and (d) is a plan view of the second horizontal frame from the top. It is another example of the raising / lowering type moving scaffold based on this invention, Comprising: The state extended | stretched to the orthogonal | vertical direction is shown. (a) is a front view, (b) is a right side view, and (c) is a plan view of a second horizontal frame. The state which folded the raising / lowering type mobile scaffold of FIG. 7 to the orthogonal | vertical direction is shown. (a) is a front view, (b) is a right side view. It is another example of the raising / lowering type moving scaffold based on this invention, Comprising: The state extended | stretched to the orthogonal | vertical direction is shown. (a) is a front view, (b) is a right side view, and (c) is a plan view of a second horizontal frame from the top. It is another example of the raising / lowering type moving scaffold based on this invention, Comprising: The state extended | stretched to the orthogonal | vertical direction is shown. (a) is a front view, (b) is a right side view. The other example of the backrest used by this invention is shown. (a) is a vertically extended moving scaffold, (b) is a state in which the backrest is folded and attached to the support, and (c) is a state in which the support is attached to the support. is there.

  Hereinafter, the lifting type moving scaffold according to the present invention will be described with reference to the drawings.

  3 to 5 are examples of the lifting type moving scaffold according to the present invention, (a) is a front view, (b) is a right side view, and (c) is a plan view of a second horizontal frame. It is. FIG. 3 shows a state when the intervals between the frames are all expanded and expanded in the vertical direction, and FIG. 4 shows a state when the intervals between the frames are all narrowed and folded in the vertical direction. FIG. 5 shows a state in which the intervals between the frames are all narrowed and folded in the vertical direction, and the handrail is further removed.

  This elevating type moving scaffold includes a rectangular base frame 5 that has wheels on a ground contact surface and can be moved and fixed to a predetermined place, and a horizontal frame 40 that can be raised and lowered in four stages.

  At the four corners of the rectangular base frame 5, base frame pillars 7 are erected, and wheels 6 with brake locks are attached to the lower ends thereof. In addition, an outrigger 76 having a jack base 75 at the tip is attached to the side surface of each column 7 of the base frame, and is installed so as to be able to rotate in the horizontal direction around each column 7 of the base frame. Yes. The liftable moving scaffold is moved by releasing the brake lock of the wheel 6 and pushing the liftable moving scaffold horizontally while keeping the jack base 75 lifted. And after moving to a predetermined place, while locking the brake of the wheel 6, it can fix in a predetermined place by grounding the jack base 75. FIG.

  Four rectangular horizontal frames 40 that can be moved up and down are provided on the rectangular base frame 5, and an X-shaped slider crank is formed by crossing and attaching two diagonal members between the frames. 50 are vertically arranged in two rows. In addition, a backrest 46 is housed in the right end of the long side of the three horizontal frames 40 from the top as a core tube so that it can be pulled out, and the liftable moving scaffold is extended in the vertical direction. Then, the backrest 46 can be pulled out from the horizontal frame 40 in the right direction and used.

  In this example, the base frame 5 also serves as the lowermost horizontal frame, but a lowermost horizontal frame 40 may be provided separately from the base frame 5. When a lowermost horizontal frame is provided separately from the base frame 5, the base frame 5 and the horizontal frame can be separated. Therefore, the upper member including the horizontal frame can be removed from the base frame when moving and transporting the lifting and lowering moving scaffold, so that the work becomes easier and the space is used effectively for storage. Can do.

  The raising and lowering of the lifting type moving scaffold is performed by sliding two diagonal members of an X-shaped slider crank 50 provided between the frames in the horizontal direction. That is, when the X-shaped slider crank extends upward, the upper horizontal frame rises. Conversely, when the X-shaped slider crank contracts downward, the upper horizontal frame descends. .

  Here, when raising the lifting and lowering type moving scaffold, the X-shaped slider crank 50 provided between the frames is extended upward, and then attached to each end face of each frame so as to be able to stand upright. Supporting the upper horizontal frame with a support made of a long member 70 and a cross member 71 serves to fix the height of the horizontal frame, and this support serves as a trap for raising and lowering the work table 60. become. Here, a backrest 46 is housed in the right end of the long side of the three horizontal frames 40 from the top as the core tube so that it can be pulled out. When 46 is pulled rightward, a backrest 46 is formed in the middle of the lifting trap composed of the support column 69 on the right end face of the lifting moving scaffold. On the other hand, the backrest 46 is not formed on the raising / lowering trap formed from the column 69 on the left end surface. Note that the backrest 46 may also be provided on the lifting trap formed from the support 69 on the left end surface.

  On the contrary, when lowering the lifting type moving scaffold, the upper horizontal frame is pushed down by pushing down the pillars made of the long members 70 and the cross members 71, which are detachably attached to both side surfaces between the upper and lower frames, respectively. The support of the frame 40 is removed, and the X-shaped slider crank 50 is contracted downward. After that, the upper horizontal frame 40 can be fixed at the height by rotating the fastener 52 upward and fixing it to the inside.

  As described above, the liftable moving scaffold according to the first embodiment includes a rectangular base frame that includes wheels on the ground surface and can be moved and fixed to a predetermined location, a plurality of steps of a vertically movable horizontal frame, and a work floor. 1 and 2 is the same as that shown in FIGS. 1 and 2, except that the number of steps of the horizontal frame that can be raised and lowered is one step and four steps, and the raising and lowering trap composed of the column 69 on the right end surface is The difference is that a backrest 46 is formed on the way.

  Even in the lifting type moving scaffold according to the first embodiment, handrail pillars 62 are installed at the four corners of the uppermost horizontal frame 40, and handrail bars 63 are provided between the handrail pillars 62 adjacent to each other. The base plate 64 is mounted on the four sides and the assembly of the work table 60 is the same. The assembly of the work table may be performed before or after the movement. May be.

  In this example, since the uppermost horizontal frame 40 of this lifting / moving scaffold also serves as a work floor frame, the uppermost horizontal frame 40 is expanded after the uppermost X-shaped slider crank 50 is extended upward. The long member 70 of the support column 69 for supporting the uppermost horizontal frame 40 by supporting the uppermost horizontal frame 40 via a lateral member 41 provided at the lower part of the uppermost horizontal frame 40, thereby increasing the height of the uppermost horizontal frame 40 to a predetermined height. Fix it.

  A work floor frame can be provided separately from the uppermost horizontal frame 40. In this case, the uppermost horizontal frame 40 is extended after the uppermost X-shaped slider crank 50 is extended upward. Since the uppermost horizontal frame 40 can be fixed at a predetermined height by directly supporting the uppermost horizontal frame 40, the long member 70 of the support column 69 for supporting the uppermost horizontal frame 40 There is no need to provide the transverse member 41 at the bottom.

  The worker moves the lifting / lowering moving scaffold to a predetermined location, fixes the lifting / lowering moving scaffold at that position, and then extends the X-shaped slider crank 50 at each stage, thereby extending the horizontal level of the uppermost stage. The frame 40 is raised to a predetermined height. That is, the number of stages for extending the slider crank 50 is determined corresponding to a predetermined height, and after the slider crank 50 is extended by the required number of stages, the height of the upper frame is fixed by the support 69 between the frames. After that, the climbing elevator lap composed of the right end support column 69 in which the landing 45 is formed is climbed to the work floor to perform work such as interior and exterior construction.

  Since the number of horizontal frames that can be raised and lowered is one step and four steps, the maximum height of the work floor is 3.6 m. However, the raising and lowering trap constituted by the support column 69 on the right end surface has a backrest 46 in the middle. Because it is formed, if the worker does not use the safety belt, or if the hook is put on the way up and down even if the safety belt is used, the back support will accept even if the posture is broken, so Therefore, the risk of stepping off from the elevated lifting trap is reduced.

  FIG. 5 shows a state in which the lifting / lowering moving scaffold is folded in the vertical direction and a handrail is removed, and the uppermost horizontal frame 40 is a lifting / lowering moving scaffold that also serves as a work floor frame. All the workbench forming members other than the work floor frame can be removed.

  As a result, the elevating type moving scaffold can be made compact, so that it is possible to pass through the door width in a general building and to load the elevator. In addition, the space can be used effectively when stored in a warehouse or the like.

  In the case of an elevating type mobile scaffold provided with a work floor frame in addition to the uppermost horizontal frame 40, the entire work platform 60 including the work floor is also removed when the elevating type mobile scaffold is transported or stored. be able to. Further, when the lowermost horizontal frame 40 is provided separately from the base frame 5, the base frame 5 and the horizontal frame can be separated. Since the upper member including can be removed from the base frame, the work becomes easy and the space can be used effectively for storage.

  FIG. 6 is another example of the liftable moving scaffold according to the present invention, and shows a state in which it is extended in the vertical direction. (a) is a left side view, (b) is a front view, (c) is a right side view, and (d) is a plan view of a second horizontal frame.

  This elevating type mobile scaffold is composed of a rectangular base frame that has wheels on the ground surface and can be moved and fixed in place, and a horizontal frame that can be raised and lowered in four steps. A backrest 46 is housed in the right side of the long side of each horizontal frame 40 so that it can be pulled out as a core tube. The point that 46 can be pulled out and used in the right direction is the same as in the first embodiment. The difference is that the support column 96 installed vertically between the frames on the left end face is composed of a longitudinal long member and a diagonal member, and its ladder function is killed. Since it does not have the role of the raising / lowering trap, it can prevent an operator from climbing up and down the vertical trap.

  When raising the lifting and lowering type moving scaffold according to the second embodiment, the X-shaped slider crank 50 provided between the horizontal frames 40 is extended upward, and then the right and left sides of the upper and lower horizontal frames 40 are moved to the right side. A column 69 composed of a long member 70 and a cross member 71 is attached to the end surface of the frame so as to be erected between the upper and lower horizontal frames 40, and a frame composed of the long member 70 and the diagonal member 72 is attached to the left end surface. A support column 96 is attached between the upper and lower horizontal frames 40 so as to be erected. By supporting the upper horizontal frame with these columns, it plays the role of fixing the height of the horizontal frame. In this case, the back-and-forth support 46 is provided in the middle of the lifting / lowering trap composed of the right-end support column 69 of the lifting / moving scaffold, whereas the lifting / lowering trap formed from the left-end support column 96. Is not provided with a backrest 46. Of these struts, the strut 69 that can be erected on the right end surface serves as a trap for raising and lowering the work floor. In addition, since the support column 96 that can be erected vertically between the frames on the left end face is composed of a longitudinal long member and a diagonal member, its ladder function is killed, so that the worker can You can prevent climbing up and down.

  Also in the liftable moving scaffold according to the second embodiment, handrail pillars 62 are installed at the four corners of the uppermost horizontal frame 40, and handrail bars 63 are provided between the handrail pillars 62 adjacent to each other. The base plate 64 is mounted on the four sides and the assembly of the work table 60 is the same. The assembly of the work table may be performed before or after the movement. May be. Here, the uppermost horizontal frame 40 also serves as a work floor frame, but a work floor frame may be provided separately from the uppermost horizontal frame 40. When a work floor frame is provided in addition to the uppermost horizontal frame 40, the entire work table 60 including the work floor can be removed when storing and transporting the liftable moving scaffold.

  In this example, the base frame 5 also serves as the lowermost horizontal frame, but a lowermost horizontal frame 40 may be provided separately from the base frame 5. When the lowermost horizontal frame 40 is provided separately from the base frame 5, the base frame 5 and the horizontal frame can be separated. Therefore, the upper member including the horizontal frame can be removed from the base frame when moving and transporting the lifting and lowering moving scaffold, so that the work becomes easier and the space is used effectively for storage. Can do.

  The worker moves the lifting / lowering moving scaffold to a predetermined location, fixes the lifting / lowering moving scaffold at that position, and then extends the X-shaped slider crank 50 at each stage, thereby extending the horizontal level of the uppermost stage. The frame 40 is raised to a predetermined height. That is, the number of stages for extending the slider crank 50 is determined in accordance with the predetermined height, the slider crank 50 is extended by the required number of stages, and then the height of the upper frame is supported by the supports 69 and 96 between the frames. After climbing up and down, a climbing turret composed of a support column 69 on the right end surface on which a landing 45 is formed is climbed to the work floor to perform work such as interior and exterior construction.

  Since the number of horizontal frames that can be raised and lowered is one step and four steps, the maximum height of the work floor is 3.6 m. However, the raising and lowering trap constituted by the support column 69 on the right end surface has a backrest 46 in the middle. Because it is formed, if the worker does not use the safety belt, or if the hook is put on the way up and down even if the safety belt is used, the back support will accept even if the posture is broken, so Therefore, the risk of stepping off from the elevated lifting trap is reduced.

  Similarly to the first embodiment, all of the work platform forming members other than the work floor frame can be removed from the liftable moving scaffold. As a result, the elevating type moving scaffold can be made compact, so that it is possible to pass through the door width in a general building and to load the elevator. In addition, the space can be used effectively when stored in a warehouse or the like.

  In the case of an elevating type mobile scaffold provided with a work floor frame in addition to the uppermost horizontal frame 40, the entire work platform 60 including the work floor is also removed when the elevating type mobile scaffold is transported or stored. be able to. Further, when the lowermost horizontal frame 40 is provided separately from the base frame 5, the base frame 5 and the horizontal frame can be separated. Since the upper member including can be removed from the base frame, the work becomes easy and the space can be used effectively for storage.

  7 and 8 are other examples of the lifting type moving scaffold according to the present invention. FIG. 7 shows a state of being expanded in the vertical direction, and FIG. 8 shows a state of being folded in the vertical direction. In either case, (a) is a front view, (b) is a right side view, and (c) is a plan view of a second horizontal frame.

  This elevating type mobile scaffold is composed of a rectangular base frame that has wheels on the ground contact surface and can be moved and fixed to a predetermined place, and a four-level horizontal frame that can be raised and lowered. Three backrests 46 are provided in the middle of the working trap by extending the horizontal frame in the long side direction. Here, a backrest 46 is housed in the right end portion of the long side of the second and third horizontal frames 40 from the top as a core tube so that it can be pulled out. A backrest 46 is housed in the right end portion of the long side of the main body portion 65 as a core tube so that it can be pulled out. When the backrest 46 is pulled out from the horizontal frame 40 in the right direction, the backrest 46 is formed in the middle of the lifting trap constituted by the support 69 on the right end face of the lifting movement scaffold. In the same manner as in the first embodiment, the backrest 46 is not provided on the raising / lowering trap formed from the column 69 on the left end surface.

  The difference from the first embodiment is that the uppermost horizontal frame 40 is composed of one main body portion 65 and two widened portions 66 so that the work floor can be folded. By using a foldable work floor, it is possible to move the elevating type moving scaffold to a predetermined place and to expand the work floor in the width direction after fixing.

  That is, in the lifting type moving scaffold according to the third embodiment, the uppermost horizontal frame 40 has one horizontal main body portion 65 and two widened portions provided on the sides of the main body portion 65. 66, and a hinge structure 67 is provided between the main body portion 65 and the widened portion 66. The widened portion 66 is located only above the main body portion 65 via the hinge structure 67. It is connected so that it can rotate. Further, the pad 68 is installed below the base of the widened portion 66.

  In the lifting and lowering type moving scaffolding according to the third embodiment, the handrail pillars 62 are installed at the four corners of the uppermost horizontal frame 40, and the handrail bar 63 is provided between the adjacent handrail pillars 62. The base plate 64 is mounted on the four sides and the assembly of the work table 60 is the same. The assembly of the work table may be performed before or after the movement. May be.

  In this example, since the uppermost horizontal frame 40 of this lifting / moving scaffold also serves as a work floor frame, the uppermost horizontal frame 40 is expanded after the uppermost X-shaped slider crank 50 is extended upward. The long member 70 of the support column 69 for supporting the uppermost horizontal frame 40 by supporting the uppermost horizontal frame 40 via a lateral member 41 provided at the lower part of the uppermost horizontal frame 40, thereby increasing the height of the uppermost horizontal frame 40 to a predetermined height. Fix it.

  In this example, the base frame 5 also serves as the lowermost horizontal frame, but a lowermost horizontal frame 40 may be provided separately from the base frame 5. When the lowermost horizontal frame 40 is provided separately from the base frame 5, the base frame 5 and the horizontal frame can be separated. Therefore, the upper member including the horizontal frame can be removed from the base frame when moving and transporting the lifting and lowering moving scaffold, so that the work becomes easier and the space is used effectively for storage. Can do.

  The worker moves the lifting / lowering moving scaffold to a predetermined location, fixes the lifting / lowering moving scaffold at that position, and then extends the X-shaped slider crank 50 at each stage, thereby extending the horizontal level of the uppermost stage. The frame 40 is raised to a predetermined height. That is, the number of stages for extending the slider crank 50 is determined corresponding to a predetermined height, and after the slider crank 50 is extended by the required number of stages, the height of the upper frame is fixed by the support 69 between the frames. After that, the climbing elevator lap composed of the right end support column 69 in which the landing 45 is formed is climbed to the work floor to perform work such as interior and exterior construction.

  Since the number of horizontal frames that can be raised and lowered is one step and four steps, the maximum height of the work floor is 3.6 m. However, the raising and lowering trap constituted by the support column 69 on the right end surface has a backrest 46 in the middle. Because it is formed, if the worker does not use the safety belt, or if the hook is put on the way up and down even if the safety belt is used, the back support will accept even if the posture is broken, so Therefore, the risk of stepping off from the elevated lifting trap is reduced.

  Here, the column 69 between the frames on the left end surface is composed of a longitudinal member and a transverse member, but if this is replaced with a column composed of a longitudinal member and a diagonal member, the embodiment As in the case of the lifting type moving scaffolding according to No. 2, the ladder function is killed, and the worker does not have a role as a raising / lowering trap. Can be prevented.

  Similarly to the first embodiment, all of the work platform forming members other than the work floor frame can be removed from the liftable moving scaffold. As a result, the elevating type moving scaffold can be made compact, so that it is possible to pass through the door width in a general building and to load the elevator. In addition, the space can be used effectively when stored in a warehouse or the like.

  Further, when the lowermost horizontal frame 40 is provided separately from the base frame 5, the base frame 5 and the horizontal frame can be separated. Since the upper member including can be removed from the base frame, the work becomes easy and the space can be used effectively for storage.

  FIG. 9 shows another example of the lifting and lowering type moving scaffold according to the present invention, and shows a state where it is extended in the vertical direction. (a) is a front view, (b) is a right side view, and (c) is a plan view of a second horizontal frame.

  This elevating type moving scaffold is composed of a rectangular base frame 5 having wheels on a ground contact surface and movable and fixed to a predetermined place, and a five-step movable horizontal frame 40.

  At the four corners of the rectangular base frame 5, base frame pillars 7 are erected, and wheels 6 with brake locks are attached to the lower ends thereof. In addition, an outrigger 76 having a jack base 75 at the tip is attached to the side surface of each column 7 of the base frame, and is installed so as to be able to rotate in the horizontal direction around each column 7 of the base frame. Yes. The liftable moving scaffold is moved by releasing the brake lock of the wheel 6 and pushing the liftable moving scaffold horizontally while keeping the jack base 75 lifted. And after moving to a predetermined place, while locking the brake of the wheel 6, it can fix in a predetermined place by grounding the jack base 75. FIG.

  Five rectangular horizontal frames 40 that can be moved up and down are provided on the rectangular base frame 5, and an X-shaped slider crank is formed by crossing and attaching two diagonal members between the frames. 50 are vertically arranged in two rows. A backrest 46 is housed in the right end of the long side of the four horizontal frames 40 from the top to the fourth step so that it can be pulled out as a core tube. Then, the backrest 46 can be pulled out from the horizontal frame 40 in the right direction and used.

  The raising and lowering of the lifting type moving scaffold is performed by sliding two diagonal members of an X-shaped slider crank 50 provided between the frames in the horizontal direction. That is, when the X-shaped slider crank extends upward, the upper horizontal frame rises. Conversely, when the X-shaped slider crank contracts downward, the upper horizontal frame descends. .

  Here, when raising the lifting and lowering type moving scaffold, the X-shaped slider crank 50 provided between the frames is extended upward, and then attached to each end face of each frame so as to be able to stand upright. Supporting the upper horizontal frame with a support made of a long member 70 and a cross member 71 serves to fix the height of the horizontal frame, and this support serves as a trap for raising and lowering the work table 60. become. Here, a back support 46 is housed in the right end of the long side of the four horizontal frames 40 from the top to the fourth step so that it can be pulled out as a core tube. When pulled out in the right direction, a backrest 46 is formed in the middle of the lifting trap composed of the support column 69 on the right end face of the lifting moving scaffold. On the other hand, the backrest 46 is not formed on the raising / lowering trap formed from the column 69 on the left end surface. Note that the backrest 46 may also be provided on the lifting trap formed from the support 69 on the left end surface.

  On the contrary, when lowering the lifting type moving scaffold, the upper horizontal frame is pushed down by pushing down the pillars made of the long members 70 and the cross members 71, which are detachably attached to both side surfaces between the upper and lower frames, respectively. The support of the frame 40 is removed, and the X-shaped slider crank 50 is contracted downward. After that, the upper horizontal frame 40 can be fixed at the height by rotating the fastener 52 upward and fixing it to the inside.

  As described above, the liftable moving scaffold according to the fourth embodiment is similar to the first embodiment, and includes a rectangular base frame having wheels on the ground surface and movable and fixed to a predetermined place, and a plurality of steps that can be lifted and lowered. The same is also true in that a backrest 46 is formed in the middle of the lifting trap composed of a horizontal frame and a work floor and comprising a column 69 on the right end surface.

  The difference from Example 1 is that the number of horizontal frames that can be moved up and down is increased by one to increase the maximum height of the work floor of the liftable moving scaffold, and accordingly, an X-shaped slider crank. 50 is added. For this reason, the maximum height of the work floor is 4.5 m.

  Also in the liftable moving scaffold according to the fourth embodiment, handrail pillars 62 are installed at the four corners of the uppermost horizontal frame 40, and handrail bars 63 are provided between adjacent handrail pillars 62. The base plate 64 is mounted on the four sides and the assembly of the work table 60 is the same. The assembly of the work table may be performed before or after the movement. May be.

  In this example, since the uppermost horizontal frame 40 of this lifting / moving scaffold also serves as a work floor frame, the uppermost horizontal frame 40 is expanded after the uppermost X-shaped slider crank 50 is extended upward. The long member 70 of the support column 69 for supporting the uppermost horizontal frame 40 by supporting the uppermost horizontal frame 40 via a lateral member 41 provided at the lower part of the uppermost horizontal frame 40, thereby increasing the height of the uppermost horizontal frame 40 to a predetermined height. Fix it.

  A work floor frame can be provided separately from the uppermost horizontal frame 40. In this case, the uppermost horizontal frame 40 is extended after the uppermost X-shaped slider crank 50 is extended upward. Since the uppermost horizontal frame 40 can be fixed at a predetermined height by directly supporting the uppermost horizontal frame 40, the long member 70 of the support column 69 for supporting the uppermost horizontal frame 40 There is no need to provide the transverse member 41 at the bottom.

  In this example, the base frame 5 also serves as the lowermost horizontal frame, but a lowermost horizontal frame 40 may be provided separately from the base frame 5. When the lowermost horizontal frame 40 is provided separately from the base frame 5, the base frame 5 and the horizontal frame can be separated. Therefore, the upper member including the horizontal frame can be removed from the base frame when moving and transporting the lifting and lowering moving scaffold, so that the work becomes easier and the space is used effectively for storage. Can do.

  The worker moves the lifting / lowering moving scaffold to a predetermined location, fixes the lifting / lowering moving scaffold at that position, and then extends the X-shaped slider crank 50 at each stage, thereby extending the horizontal level of the uppermost stage. The frame 40 is raised to a predetermined height. That is, the number of stages for extending the slider crank 50 is determined in accordance with the predetermined height, the slider crank 50 is extended by the required number of stages, and the height of the upper frame is then increased by the supports 69a and 69b between the frames. After climbing up and down, a climbing turret composed of a support column 69 on the right end surface on which a landing 45 is formed is climbed to the work floor to perform work such as interior and exterior construction.

  Since the number of horizontal frames that can be moved up and down is five, the maximum height of the work floor is 4.5 m. However, the raising and lowering trap constituted by the column 69 on the right end surface has a backrest 46 formed in the middle. Therefore, if the worker does not use the safety belt, or if the hook is put on the way up and down even if the safety belt is used, the back rest will be received even if the posture is broken, so that it will fall backward Therefore, there is less risk of stepping off from the elevated lift trap.

  The state in which this lifting / lowering moving scaffold is folded in the vertical direction and the handrail is removed is the same as in FIG. 5, and the uppermost horizontal frame 40 is a work in the lifting / lowering moving scaffold that also serves as a work floor frame. All worktable forming members other than the floor frame can be removed. Therefore, since the lifting and lowering type moving scaffold can be made compact, it is possible to pass through the width of the door in the general building and to load the elevator. Moreover, the space can be saved also when storing in a warehouse or the like.

  Further, when the lowermost horizontal frame 40 is provided separately from the base frame 5, the base frame 5 and the horizontal frame can be separated. Since the upper member including can be removed from the base frame, the work becomes easy and the space can be used effectively for storage.

  In addition, if the support | pillar 69 installed perpendicularly between the frames of the left end face is composed of a longitudinal long member and a diagonal member, the ladder function is killed in the same manner as the liftable moving scaffold according to the second embodiment. Thus, since it does not have the function of a lifting trap, it is possible to prevent an operator from climbing up and down a trap where no landing on the left end face is formed.

  Similarly to the third embodiment, if the work floor installed on the uppermost horizontal frame of the liftable moving scaffolding is composed of one main body and two widened parts, the width of the work floor is reduced. Therefore, it is possible to pass through the width of a door in a general building or to load an elevator. Similarly, when storing in a warehouse or the like, the width of the work floor can be reduced, and the space can be used effectively for storage.

  FIG. 10 is another example of the liftable moving scaffold according to the present invention, and shows a state in which it is extended in the vertical direction. (a) is a front view, (b) is a right side view.

  FIG. 11 shows another example of the backrest used in the present invention. (a) is a vertically extended moving scaffold, (b) is a state in which the backrest is folded and attached to the support, and (c) is a state in which the support is attached to the support. is there.

  As in the case of the fourth embodiment, the liftable moving scaffold according to the fifth embodiment includes a rectangular base frame that has wheels on the ground contact surface and can be moved and fixed to a predetermined place, and a plurality of steps of a horizontally movable frame that can be raised and lowered. The same is also true in that a backrest 46 is formed in the middle of the raising / lowering trap which consists of a floor and is composed of a support column 69 on the right end surface.

  The difference from the fourth embodiment is that the structure of the backrest 46 provided in the middle of the lifting trap is different. Here, the backrest can be folded and attached to one member of the lifting mobile scaffold. When the lifting platform is extended vertically, the backrest can be attached at right angles to the support between the frames. When the lifting platform is folded vertically, the backrest is folded and attached to the support. become. Furthermore, since the support with the backrest can also be folded inward of the lifting / moving scaffold, the space can be used effectively when storing and transporting the lifting / lowering scaffold.

  ADVANTAGE OF THE INVENTION According to this invention, the raising / lowering movable scaffold which enables a worker to raise / lower the raising / lowering trap more safely can be provided.

5 Base frame 6 Wheel with brake lock 7 Base frame support 40 Horizontal frame 41 Horizontal frame horizontal member 46 Backrest 50 X-shaped slider crank 51 Pin 52 Fastening 60 Worktable 62 Handrail pillar 63 Handrail bar 64 Skirting board 68 Base material 69 Posts between frames that also serve as raising and lowering traps 70 Long members of posts between frames 71 Cross members of posts between frames 72 Diagonal materials of posts between frames 75 Jack base 76 Outrigger 96 Role of raising and lowering laps No strut between frames

Claims (9)

  On a rectangular base frame with wheels on the grounding surface, a plurality of horizontal frames are stacked in order via a slider crank, and the slider crank provided between the frames is extended on both sides between the frames. The lifting and lowering movable scaffolding can be provided with a plurality of struts continuously, and the plurality of struts continuous on at least one side surface among the struts between the frames are provided with a lifting trap to the work floor. A lifting and lowering type moving scaffold characterized by having a backrest in the middle.   The lifting and lowering movable scaffold according to claim 1, wherein the column is composed of two long members and a cross member connecting these long members.   On a rectangular base frame with wheels on the grounding surface, a plurality of horizontal frames are stacked in order via a slider crank, and the slider crank provided between the frames is extended on both sides between the frames. , A lifting and lowering type moving scaffold that can be continuously provided with a plurality of columns, and among the columns between the frames, the plurality of columns that are continuous on one side surface are provided with a lifting trap to the work floor. A lifting and lowering type moving scaffold characterized in that it also serves as a backrest in the middle, and a plurality of continuous columns on the other side do not have a role of a lifting trap.   The strut that also serves as the raising and lowering trap is composed of two long members and a cross member that connects these long members, and the strut that does not have the role of the lifting and lowering trap connects the two long members and these long members. The elevating type moving scaffold according to claim 3, which is made of diagonal material.   5. The liftable moving scaffold according to claim 1, wherein the backrest is formed by extending a long side of the horizontal frame.   6. The elevating and lowering according to claim 5, wherein the back rest can be stored in the long side of the horizontal frame, and the elevating movable scaffold is extended in the vertical direction and then the back rest is pulled out from the horizontal frame. Type moving scaffold.   The lifting and lowering movable scaffold according to any one of claims 1 to 4, wherein the backrest is attached to the support at a right angle.   8. The lifting / lowering according to claim 7, wherein the backrest is foldable so as to follow the support, and the lifting / moving scaffold is extended in the vertical direction, and then the backrest is spread at right angles from the support. Type moving scaffold.   The lifting platform according to any one of claims 1 to 8, wherein the workbench has a horizontal main body part and one or a plurality of widened parts provided on the side of the main body part.

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