JP2023140932A - Mobile scaffold for inclined surface - Google Patents

Abstract

To reduce man-hours when working on inclined planes.SOLUTION: A mobile scaffold for inclined surfaces 100 includes a scaffold frame 10 having a pair of main frames 11 and a plurality of subframes 12, and a first traveling portion 20 that can move the scaffold frame 10 along a small beam 3 that is provided in advance on an inclined surface and extends in a substantially horizontal direction. The first traveling portion 20 includes a running roller 21 in contact with a parallel surface 3a of the small beam 3, a transmission roller 22 in contact with a first orthogonal surface 3b of the small beam 3, and a riding roller 23 capable of riding on a grand beam 4 extending from the small beam 3 in the inclination direction. When moving the scaffold frame 10, the transmission roller 22 moves away from the first orthogonal surface 3b in conjunction with the riding roller 23 riding on the grand beam 4 and moves to a position where it does not interfere with the grand beam 4.SELECTED DRAWING: Figure 10

Description

The present invention relates to a mobile scaffold for sloped surfaces.

Patent Document 1 discloses a movable scaffold for a slope in which a small beam, which is a component of a roof frame and is fixed above a beam, is used as a guide rail for moving the scaffold. This movable scaffold for inclined surfaces is movable in the extending direction of the beam by rolling rollers that contact the upper surface of the beam and guide rollers that contact the side surface.

Japanese Patent Application Publication No. 06-101312

In the movable scaffold for slopes described in Patent Document 1, guide rollers that come into contact with the side surfaces of the small beams are fixed to the main frame of the scaffold. When the guide roller is fixed to the main frame in this way, if a member such as a sun beam extends from the side of the small beam along the inclination direction, the guide roller will hit the member such as the sun beam. This limits the movement of the scaffold. For this reason, every time the movement of the scaffold is obstructed by a member such as a sunbeam, the scaffold must be lifted and moved using a crane, etc., and as a result, the number of man-hours required for work on a slope may increase. .

An object of the present invention is to reduce the number of man-hours required when working on an inclined surface.

The present invention is a mobile scaffold for slopes used when performing work on slopes, which includes a pair of main frames provided along the direction of slope of the slope, and a main frame that is perpendicular to the pair of main frames. a scaffold frame body having a plurality of sub-frames provided as shown in FIG. The first traveling section includes a first traveling roller that moves the scaffolding frame by contacting a parallel surface of the existing member that is substantially parallel to the inclined surface; Among them, a first transmission roller transmits the load of the scaffolding frame in the inclination direction to the existing member by contacting a first orthogonal surface on the upper side that is substantially perpendicular to the parallel plane, and a first transmission roller that transmits the load of the scaffold frame in the inclination direction to the existing member; a climbing member configured to be able to ride on an extending inhibiting member, and when rotating the first traveling roller to move the scaffolding frame, the first transmission roller is configured to allow the climbing member to ride on the inhibiting member. In conjunction with this, it moves away from the first orthogonal surface and to a position where it does not interfere with the inhibiting member.

According to the present invention, the number of man-hours required for working on an inclined surface can be reduced.

FIG. 2 is a diagram for explaining an example of an inclined surface on which a mobile scaffold for inclined surfaces according to an embodiment of the present invention is used. FIG. 2 is an enlarged view showing a portion indicated by arrow A in FIG. 1; FIG. 3 is a diagram of the inclined surface movable scaffold seen from the direction indicated by arrow B in FIG. 2; FIG. 4 is a sectional view showing a cross section taken along the line CC in FIG. 3, and is a diagram showing a first running portion. FIG. 5 is a diagram of the first running portion seen from the direction indicated by arrow F in FIG. 4; FIG. 4 is a cross-sectional view taken along line DD in FIG. 3, and is a diagram showing a second running portion. 7 is a cross-sectional view showing a cross section taken along line GG in FIG. 6. FIG. 7 is a cross-sectional view showing a cross section taken along line HH in FIG. 6. FIG. 4 is a diagram seen from the direction indicated by arrow E in FIG. 3, and is a diagram showing an auxiliary travel section. FIG. It is a figure which shows the state of the 1st running part at the time of passing an obstruction member. It is a figure which shows the state of the 2nd running part at the time of passing an obstruction member.

EMBODIMENT OF THE INVENTION Hereinafter, with reference to drawings, the mobile scaffold for slopes based on embodiment of this invention is demonstrated.

First, referring to FIGS. 1 to 3, a movable scaffold for inclined surfaces 100 according to an embodiment of the present invention will be described. The slope movable scaffold 100 is a scaffold used when performing work on a slope, and has a configuration that can be moved along the horizontal direction orthogonal to the slope direction of the slope where the work is performed. It is a scaffold that has.

The mobile scaffolding for inclined surfaces 100 is used, for example, as shown in FIGS. 1 and 2, in a building 1 having a roof surface 1a with a relatively steep slope, when installing roofing material thereon. Note that the use of the mobile scaffolding 100 for sloped surfaces is not limited to the construction of roofing materials, and may be used, for example, in repair work on sloped surfaces, inspection work on sloped surfaces of dams, etc.

FIG. 1 is a side view of a building 1 having a valley in its roof, as viewed in the direction in which the ridge extends, that is, in the row direction. FIG. 2 is an enlarged view of the portion indicated by arrow A in FIG. 1, mainly showing the side surface of the slope movable scaffold 100. FIG. 3 is a diagram showing the movable scaffold for inclined surfaces 100 viewed from the direction indicated by arrow B in FIG. 2.

As shown in FIG. 2, the slope movable scaffold 100 is a structural member of the building 1, and is an existing member that is provided in advance on the roof surface 1a (sloped surface) and extends in a substantially horizontal direction, such as a building structure. A small beam 3 fixed to a beam (not shown) provided along the inter-beam direction of the object 1 is used as a guide rail for moving the scaffold.

As shown in FIG. 1, when the roof surface 1a of the building 1 is relatively large, a plurality of slope movable scaffolds 100 are arranged along the slope direction of the roof surface 1a. In addition, in the example shown in FIG. 1, three mobile scaffolds 100 for slopes are arranged, but the number of mobile scaffolds 100 for slopes arranged is not limited to this, and may be four or more. However, it may be one.

Specifically, as shown in FIGS. 2 and 3, the mobile scaffold 100 for inclined surfaces includes a scaffold frame 10 composed of a pair of main frames 11 and a plurality of sub-frames 12; The first running part 20, the second running part 40, and the auxiliary running part 70 are attached to the scaffold frame 10 in order to move the small beam 3 (existing member) along the longitudinal direction, and the second running part 40 and the auxiliary running part 70 are installed in the scaffold frame 10. A staircase section 14 is provided. Note that in FIG. 3, illustration of the staircase portion 14 is omitted.

The main frame 11 and sub-frame 12 that constitute the scaffolding frame 10 are made of H-beam steel, and the main frame 11 is provided as a pair along the inclination direction of the roof surface 1a (sloped surface), and the sub-frame 12 is It is provided perpendicularly to the frame 11. The subframe 12 includes a first subframe 12a whose both ends are butt welded to the pair of main frames 11, and a second subframe 12b whose one end is butt welded to the main frame 11.

The sub-frame 12 is attached with running sections 20, 40, and 70, which will be described later, which utilize small beams 3 (existing members), which are roof base steel frames made of H-shaped steel or the like, as guide rails. Therefore, the intervals at which the subframes 12 are provided in the inclination direction are set to the same intervals as the intervals at which the small beams 3 are provided in the building 1.

As shown in FIG. 2, the staircase section 14 has a plurality of steps and is shaped so that a worker can easily ascend and descend it along the inclination direction of the roof surface 1a (slope surface). Furthermore, fall prevention fences 15 are provided on the stairway portion 14 at predetermined intervals along the inclination direction.

The fall prevention fence 15 mainly includes a pair of columns 15a erected at both ends of the stairway portion 14 in the extending direction of the subframe 12, and a plurality of bar members 15b spanned between the pair of columns 15a. configured. In order to ensure the rigidity of the fall prevention fence 15, a plurality of sub-posts (not shown) were erected in the stair portion 14 between the pair of posts 15a, and a plurality of bar members 15b were joined to these sub-posts. It is preferable to set it as a structure.

In this way, by providing the fall prevention fences 15 at predetermined intervals in the inclination direction, it is possible to increase the safety of the workers and suppress the fear that occurs when the workers go up and down the stairs 14. be able to.

Note that the fall prevention fence 15 is provided with a door (not shown) that can be opened upward in the inclination direction, and the worker can move up and down the stairs 14 by opening this door. is possible. Such doors are also installed on the fall prevention fences 15 provided at the top and bottom of the movable scaffold 100 for inclined surfaces. Therefore, as shown in FIG. 1, when a plurality of slope movable scaffolds 100 are arranged along the slope direction, workers can safely move to another slope movable scaffold 100 arranged below or above. It is possible to move to

Furthermore, in addition to the above-mentioned fall prevention fence 15, the stairway portion 14 is provided with handrails 17 along the inclination direction between the supports 15a for safely guiding the movement of workers upward or downward. . Note that the handrail 17 is provided only on one end side of the stairway portion 14 in the extending direction of the subframe 12, and the other end side of the stairway portion 14 where the handrail 17 is not provided is provided with a folded plate. This is a work space for installing roofing materials such as roofing materials.

Here, in the building 1, in order to ensure rigidity, sunbeams may be provided along the inclination direction between the small beams 3 provided apart in the inclination direction. If the sun beam is provided so as to intersect with the small beam 3, when the scaffold frame 10 is moved along the small beam 3, the sun beam becomes an inhibiting member that obstructs the movement of the scaffold frame 10. There is a risk of it getting lost.

For this reason, the movable scaffold 100 for inclined surfaces according to the present embodiment allows the scaffold frame 10 to be safely moved even if an inhibiting member such as a sunbeam is provided that may inhibit the movement of the scaffold frame 10. Moreover, it is provided with running parts 20, 40, and 70 that enable smooth movement.

Next, the configuration of each running section 20, 40, 70 will be explained with reference to FIGS. 4 to 9. 4 and 5 are diagrams showing the first running section 20, FIGS. 6 to 8 are diagrams showing the second running section 40, and FIG. 9 is a diagram showing the auxiliary running section 70.

As shown in FIGS. 4 and 5, the first running portion 20 is constructed by being in contact with a parallel surface 3a of the small beam 3 (existing member) that is approximately parallel to the roof surface 1a (sloped surface). The running roller 21 (first running roller) that moves the frame 10 contacts the first orthogonal surface 3b on the upper side that is substantially orthogonal to the parallel surface 3a among the surfaces of the small beam 3. A transmission roller 22 (first transmission roller) that transmits the load of the scaffolding frame 10 to the small beam 3, and a climbing roller configured to be able to ride on an inhibiting member such as a sunbeam 4 extending from the small beam 3 along the inclination direction. A roller 23 (riding member), a second lever member 27 that rotatably holds the transmission roller 22, a first lever member 32 that rotatably holds the riding roller 23, a traveling roller 21, and a second lever member. 27 and a support portion 24 that supports the first lever member 32.

The first running portion 20 is coupled via a support portion 24 to a first flange 13a, which is a flange portion of the subframe 12 on the roof surface 1a side. Note that FIGS. 4 and 5 show a state where the first traveling section 20 is located in a place where there is no obstructing member such as a sunbeam.

The running roller 21 is a cylindrical member, and has a bearing (not shown) on a support shaft 26 provided along an inclination direction, that is, a direction perpendicular to the longitudinal direction of the subframe 12 and parallel to the parallel surface 3a. Rotatably mounted through the.

As shown in FIG. 5, two support shafts 26 are provided at intervals in the longitudinal direction of the subframe 12 between a pair of support plates 25 provided on the support portion 24. That is, the running rollers 21 are provided at two locations separated from each other in the longitudinal direction of the subframe 12.

The two running rollers 21 provided in this way transmit the load of the scaffold frame 10 in the inclination direction to the small beam 3, while the load of the scaffold frame 10 in the direction perpendicular to the inclination direction is transmitted to the small beam 3. The load of the frame 10 is transmitted to the small beam 3.

A pair of support plates 28 that support the second lever member 27 are provided between a pair of support plates 25 that support the traveling roller 21 . A second support shaft 29, which is the center of rotation of the second lever member 27, is provided between the pair of support plates 28 so as to extend in the direction in which the scaffold frame 10 is moved, that is, in the longitudinal direction of the subframe 12. It is being

The transmission roller 22 held by the second lever member 27 includes a cylindrical portion 22a that is in contact with the first orthogonal surface 3b of the small beam 3, and a flange portion 22b that is provided at both ends of the cylindrical portion 22a and has a larger outer diameter than the cylindrical portion 22a. It is a cylindrical member having , and is rotatably attached to a support shaft 30 provided on one end side of the second lever member 27 via a bearing (not shown).

The support shaft 30 is configured such that when the second lever member 27 is in a position where the cylindrical portion 22a of the transmission roller 22 and the first orthogonal surface 3b of the small beam 3 can come into contact with each other, as shown in FIG. The second lever member 27 is provided along a direction perpendicular to the axial direction of the second support shaft 29 and parallel to the first orthogonal surface 3b.

The flange portion 22b is provided to prevent the transmission roller 22, which rotates in contact with the first orthogonal surface 3b of the small beam 3, from coming off the first orthogonal surface 3b due to vibration or the like.

Furthermore, a pair of support plates 34 that support the first lever member 32 are provided toward the lower part of the support plate 25 in the inclination direction among the pair of support plates 25 that support the traveling roller 21 and that support the first lever member 32 . There is.

A first support shaft 35, which is the center of rotation of the first lever member 32, is provided between the pair of support plates 34 so as to extend in the direction in which the scaffold frame 10 is moved, that is, along the longitudinal direction of the subframe 12. It is being That is, the first support shaft 35 is arranged parallel to the second support shaft 29.

The riding roller 23 held by the first lever member 32 is a disc-shaped roller member, and is rotatably attached to a support shaft 33 provided at one end of the first lever member 32 via a bearing (not shown). ing.

The support shaft 33 moves in the axial direction of the second support shaft 29 when the first lever member 32 is in a position where the riding roller 23 is not in contact with any member, as shown in FIG. The first lever member 32 is provided along a direction perpendicular to the parallel surface 3a of the small beam 3 and parallel to the parallel surface 3a of the small beam 3.

Further, as shown in FIG. 4, when the ride-on roller 23 attached to the support shaft 33 is not in contact with any member, the rotation center axis is closer to the subframe 12 than the parallel surface 3a of the small beam 3. At least a part of the outer peripheral surface of the ride-on roller 23 is located on the side of the small beam 3 beyond the parallel surface 3a of the small beam 3. In other words, when an inhibiting member such as a sunbeam is provided so as to intersect with the small beam 3, the climbing roller 23 is arranged at a position where it can ride on the inhibiting member while rotating. . Note that the first lever member 32 is configured such that, for example, by a torsion spring (not shown) held by the first support shaft 35, one end side that holds the riding roller 23 faces the small beam 3, and the other end side faces the subframe 12. is energized by

As shown in FIG. 5, two first lever members 32 that hold the riding rollers 23 are provided at intervals in the longitudinal direction of the subframe 12 between a pair of support plates 34. That is, the riding rollers 23 are provided at two locations separated from each other by a predetermined first distance L1 in the longitudinal direction of the subframe 12.

The other end of the first lever member 32 that rotates around the first support shaft 35 and the other end of the second lever member 27 that rotates around the second support shaft 29 are connected to the first support shaft 35 and the second lever member 27 that rotates around the second support shaft 29. They are rotatably connected to each other via a third support shaft 36 provided parallel to the second support shaft 29 .

Specifically, the third support shaft 36 is fixed to the other end of the first lever member 32, and the third support shaft 36 is inserted through the second lever member 27, as shown in FIG. A long hole 31 is formed.

In this way, in the first traveling section 20, the riding roller 23 is mounted at one end of the first lever member 32, which is rotatable about the first support shaft 35 provided along the direction in which the scaffold frame 10 is moved. The transmission roller 22 is provided at one end of a second lever member 27 that is rotatable about a second support shaft 29 provided parallel to the first support shaft 35, and The end and the other end of the second lever member 27 are rotatably connected to each other via a third support shaft 36 provided parallel to the first support shaft 35 and the second support shaft 29.

In other words, the second lever member 27 provided with the transmission roller 22 is configured to rotate in accordance with the rotation of the first lever member 32 provided with the riding roller 23.

As shown in FIGS. 6 to 8, the second running section 40 includes running rollers 41 (second running rollers) that move the scaffolding frame 10 by contacting the parallel surfaces 3a of the small beams 3, and A transmission roller 42 (second transmission roller) transmits the load of the scaffolding frame 10 in the inclination direction to the beam 3 by contacting the first orthogonal surface 3b, and a guide roller 43 that is in contact with a second orthogonal surface 3c on the lower side that is substantially orthogonal to each other; a first holder 44 that rotatably holds the transmission roller 42; and a second holder 45 that rotatably holds the guide roller 43. , a first support body 46 that supports the running roller 41, a first holder 44, and a second holder 45, and a second support 47 that supports the first holder 44 together with the first support 46.

The second running portion 40 is connected to a first flange 13a, which is a flange portion on the roof surface 1a side, of the pair of flange portions of the subframe 12 via a first support 46, and is connected to the other flange of the subframe 12. It is connected to the second flange 13b, which is a section, via a second support body 47. Note that FIG. 6 shows a state where the second traveling section 40 is located in a place where there is no obstructing member such as a sunbeam.

The first support body 46 coupled to the first flange 13a is mainly composed of a pair of support plates 56 extending in a direction (inclination direction) perpendicular to the longitudinal direction of the subframe 12, and the first support body 46 is connected to the second flange 13b. The second support body 47 coupled to the subframe 12 is mainly composed of a pair of support plates 58 extending in a direction (inclination direction) perpendicular to the longitudinal direction of the subframe 12 .

The first holding body 44 supported by the first support body 46 and the second support body 47 is inserted through a slight gap between a pair of support plates 56 and a pair of support plates 58, as shown in FIG. The second holding body 45 is formed into a shape having a thickness of It is formed into a shape having a thickness.

The running roller 41 is a cylindrical member, and has a bearing (not shown) on a support shaft 49 provided along an inclination direction, that is, a direction perpendicular to the longitudinal direction of the subframe 12 and parallel to the parallel surface 3a. Rotatably mounted through the.

The support shaft 49 is provided between a pair of support plates 48 provided on the first support body 46 . The traveling rollers 41 provided in this manner transmit the load of the scaffold frame 10 in the inclination direction to the small beams 3, while the load of the scaffold frame 10 in the direction perpendicular to the inclination direction is transmitted to the scaffold frame 10 in the direction perpendicular to the inclination direction. A load of 10 is transmitted to the small beam 3.

The transmission roller 42 held by the first holder 44 is a cylindrical member, and is rotatably attached to a support shaft 50 provided at one end of the first holder 44 via a bearing (not shown).

The support shaft 50 supports the subframe 12 when the first holder 44 is in a position where the transmission roller 42 and the first orthogonal surface 3b of the small beam 3 can come into contact with each other, as shown in FIG. It is provided on the first holder 44 along a direction perpendicular to the longitudinal direction and parallel to the first orthogonal surface 3b.

Further, the first holder 44 that holds the transmission roller 42 is provided with a displacement prevention plate 51 that is used to prevent the first holder 44 from displacing upward in the inclination direction with respect to the first support 46. In addition, a long hole 52a and a through hole 52b, which are used to connect the first holding body 44 to the second support body 47, are provided.

On the other hand, the first support body 46 is provided with a displacement regulating member 57 that comes into contact with the displacement prevention plate 51 of the first holding body 44 and whose position can be adjusted along the inclination direction. Specifically, the displacement regulating member 57 has a threaded portion, and the position of the first holding body 44 is such that the transmission roller 42 and the first orthogonal surface 3b of the small beam 3 are in contact with each other, as shown in FIG. It is screwed onto a portion facing the displacement prevention plate 51 when it is in a possible position. Therefore, by bringing the end of the displacement regulating member 57 into contact with the displacement prevention plate 51, it is possible to prevent the first holding body 44 from displacing upward in the inclination direction.

Further, the second support body 47 is provided with a long hole 58a formed to intersect with the long hole 52a formed along the longitudinal direction of the first holding body 44, and a through hole 52b. A first pin restricting portion 58b and a second pin restricting portion 58c are provided correspondingly. As shown in FIG. 6, the first pin restricting portion 58b is formed as a through hole, while the second pin restricting portion 58c is a notch formed by cutting out the pair of support plates 58. Note that the second pin restricting portion 58c may be formed of a through hole similarly to the first pin restricting portion 58b.

As shown in FIG. 7, one pin member 61 is inserted into the elongated hole 52a of the first holding body 44 and the elongated hole 58a of the second support body 47 without being pulled out. In other words, the first holder 44 and the second support 47 are connected via the pin member 61, and the first holder 44 is connected to the second support 47 through the elongated hole 52a and the elongated hole 58a. It is possible to move only within the range where these intersect.

Further, the position of the first holder 44 with respect to the second support 47 is such that the insertion pin member 62, which can be inserted and removed, is inserted into the through hole 52b of the first holder 44 and the second support 47. The first pin regulating portion 58b is inserted into the first pin regulating portion 58b. Note that the position of the first holder 44 with respect to the second support 47 is such that the insertion pin member 62 is positioned between the elongated hole 52a of the first holder 44 and the second pin regulating portion 58c of the second support 47. It can also be specified by inserting the

In this way, the elongated hole 52a and the through hole 52b provided in the first holding body 44, the elongated hole 58a provided in the second support body 47, the first pin regulating part 58b and the second pin regulating part 58c, and the pin The member 61 and the insertion pin member 62 adjust the position of the transmission roller 42 to a position where it can come into contact with the first orthogonal surface 3b, and to a position where the transmission roller 42 is in a position where it can be obstructed by a sunbeam or the like when moving the scaffolding frame 10. It functions as a first switching section 60 that can be switched to a position that does not interfere with the member.

The guide roller 43 held by the second holder 45 is a cylindrical member like the transmission roller 42, and is rotatable via a bearing (not shown) on a support shaft 53 provided at one end of the second holder 45. is attached to.

The support shaft 53 supports the subframe 12 when the second holding body 45 is in a position where the guide roller 43 and the second orthogonal surface 3c of the small beam 3 can come into contact with each other, as shown in FIG. It is provided on the second holder 45 along a direction perpendicular to the longitudinal direction and parallel to the second orthogonal surface 3c.

The second holder 45 that holds the guide roller 43 is provided with a first through hole 54a and a second through hole 54b that are used to connect the second holder 45 to the first support 46. .

On the other hand, the first support body 46 has a first through hole 56a formed corresponding to the first through hole 54a, a second through hole 56b formed corresponding to the second through hole 54b, and a second through hole 56b formed corresponding to the second through hole 54b. 3 through holes 56c are provided.

As shown in FIG. 8, a pin member 65 is inserted into the first through hole 54a of the second holding body 45 and the first through hole 56a of the first support body 46 without being pulled out. That is, the second holder 45 and the first support 46 are connected via the pin member 65, and the second holder 45 rotates around the pin member 65 with respect to the first support 46. It is possible to move.

Further, the position of the second holder 45 with respect to the first support 46 is such that the insertable pin member 66 is inserted into and removed from the second through hole 54b of the second holder 45, as shown in FIGS. 6 and 8. It is defined by inserting into the second through hole 56b of the first support body 46. Note that the position of the second holder 45 with respect to the first support 46 is such that the insertion pin member 66 is positioned between the second through hole 54b of the second holder 45 and the third through hole of the first support 46, as described later. It can also be defined by inserting it into 56c.

The first through hole 54a and the second through hole 54b provided in the second holding body 45 in this way, and the first through hole 56a, second through hole 56b and third through hole provided in the first support body 46. 56c, the pin member 65, and the insertion pin member 66 change the position of the guide roller 43 to a position where it can come into contact with the second orthogonal surface 3c, and a position where the guide roller 43 moves when moving the scaffolding frame 10. It functions as a second switching section 64 that can be switched to a position that does not interfere with an inhibiting member such as a beam.

As shown in FIG. 6, the first switching section 60 moves the transmission roller 42 to a position where it can contact the first orthogonal surface 3b, and the second switching section 64 moves the guide roller 43 to the second orthogonal surface 3c. When placed in a contactable position, the small beam 3, which is an existing member, is sandwiched between the transmission roller 42 and the guide roller 43 in the inclined direction.

By sandwiching the small beam 3 between the transmission roller 42 and the guide roller 43 in this way, it becomes possible to move the scaffolding frame 10 relatively stably. In order to prevent the transmission roller 42 and the guide roller 43, which rotate in an unsteady state, from coming off the small beam 3 due to vibrations, etc., the first holder 44 and the second holder 45 are provided with a groove facing toward the small beam 3. Flange portions 67 and 68 that are formed to protrude are provided, respectively.

Specifically, as shown in FIG. 6, the first holder 44 has the first orthogonal surface 3b when the transmission roller 42 and the first orthogonal surface 3b of the small beam 3 are in a position where they can contact each other. A flange portion 67 extending toward the small beam 3 side is provided on the opposite side of the first support body 46 with the transmission roller 42 in between.

Similarly, as shown in FIG. 6, when the guide roller 43 and the second orthogonal surface 3c of the small beam 3 are in a position where they can come into contact, the second holder 45 has a A flange portion 68 extending toward the small beam 3 is provided on the opposite side of the first support body 46 with the guide roller 43 in between.

Note that the flanges 67 and 68 may be formed on the transmission roller 42 itself or the guide roller 43 itself, like the flanges 22b of the transmission roller 22 of the first traveling section 20 described above.

As shown in FIG. 9, the auxiliary running section 70 includes two running rollers 71 and a support section 72 that supports the running rollers 71, and is connected to the first flange of the subframe 12 via the support section 72. 13a.

A pair of support plates 73 that support the traveling roller 71 are provided in the support portion 72 along the longitudinal direction of the subframe 12, and two support shafts 73a are provided between the pair of support plates 73 in the inclination direction, That is, it is provided along a direction perpendicular to the longitudinal direction of the subframe 12 and parallel to the parallel surface 3a. A cylindrical running roller 71 is rotatably attached to each of the two support shafts 73a via a bearing (not shown).

In this way, the scaffolding frame 10 is movable along the small beam 3 via the running parts 20, 40, 70 equipped with rollers that can contact each surface 3a, 3b, 3c of the small beam 3. .

In addition, in FIG. 3, the first running section 20 is arranged on the upper side in the direction of inclination, the auxiliary running section 70 is arranged on the lower side in the direction of inclination, and the second running section 40 is arranged in the middle. This is just an example, and the location where each running section 20, 40, 70 is arranged and the number thereof are not limited to this. For example, the auxiliary traveling section 70 may be provided not only on the lower side in the inclination direction but also adjacent to the first traveling section 20 and the second traveling section 40.

The moving scaffold for slopes 100 can be moved, for example, by hooking one hook of the lever block (registered trademark) to the beam 3 and hooking the other hook to the scaffold frame 10. This is done by moving a lever. The method of moving the movable scaffold 100 for slopes is not limited to this, and for example, a rope member stretched along the row direction on the roof surface 1a may be moved manually or by a traction machine installed on the movable scaffold 100 for slopes. It may also be done by towing.

When the movement of the movable scaffold 100 for slopes is completed, the movable scaffold 100 for slopes is fixed to the roof surface 1a by locking the small beam 3 with a stopper (not shown) provided on the scaffold frame 10. The state will be as follows.

Next, FIGS. 10 and 11 show the state when the first running section 20 and the second running section 40 configured as described above pass through the grand beam 4 (obstruction member) provided to intersect with the small beam 3. Explain with reference to. FIG. 10 shows the state when the first running section 20 passes through a place where there is an obstruction member such as Sun Liang 4, and FIG. 40 is shown.

First, the state of the first traveling section 20 will be explained with reference to FIG. 10.

When the first running section 20 approaches the grand beam 4 provided to intersect with the small beam 3, the outer periphery of the riding roller 23 that is located on the small beam 3 side beyond the parallel surface 3a of the small beam 3 A part of the surface rides on the sun beam 4 while rotating. As shown in FIG. 10, the riding roller 23 of the first traveling section 20 rides on the sun beam 4, that is, the first lever member 32 holding the riding roller 23 is centered on the first support shaft 35. , it is in a state where it is rotated in the direction shown by arrow R1.

The first lever member 32 is rotatably connected to the second lever member 27 that holds the transmission roller 22 via the third support shaft 36. In response to the rotation, it rotates about the second support shaft 29 in the direction indicated by arrow R2.

Then, as the second lever member 27 rotates, the transmission roller 22 moves away from the first orthogonal surface 3b of the small beam 3 and moves to a position where it does not interfere with the grand beam 4 (obstruction member).

In this way, when there is an obstruction member such as the sun beam 4, the transmission roller 22 automatically moves to a position where it does not collide with the sun beam 4. Therefore, there is no need to lift and move the movable scaffold for slopes 100 using a crane or the like every time it straddles an obstruction member such as the sunbeam 4, so the movable scaffold for slopes 100 can be moved safely and smoothly. .

Further, while the riding roller 23 rides on the sun beam 4, the riding roller 23 is pressed against the sun beam 4 by the restoring force of a torsion spring (not shown) acting on the first lever member 32. Therefore, when passing through the place where the grand beam 4 is provided, the riding roller 23 is again in a state where a part of the outer circumferential surface exceeds the parallel surface 3a of the small beam 3 and is located on the small beam 3 side (Fig. 4 Correspondingly, the transmission roller 22 also returns to the state in which it is in contact with the first orthogonal surface 3b of the small beam 3.

In order to ensure that the transmission roller 22 moves to a position where it does not interfere with the sunbeam 4 (obstruction member), the position of the center of rotation of each lever member 27, 32, the length of each lever member 27, 32, and the The size of the outer diameter of the upper roller 23 and the length of the first distance L1 between the riding rollers 23 are optimized in advance.

For example, the length of the first distance L1 between the riding rollers 23 shown in FIG. 5 is set to be larger than the width of the grand beam 4 (obstruction member) in the extending direction of the small beam 3. By setting the first distance L1 between the riding rollers 23 in this way, it is possible to reliably hold the transmission roller 22 at a position where it does not interfere with the sun beam 4 (obstruction member) until it passes the sun beam 4. can. In addition, when the width of the sun beam 4 (inhibiting member) is large or when the size of the outer diameter of the riding roller 23 is limited, the number of riding rollers 23, that is, the number of the first lever members 32 is reduced to 3. The number may be increased to two or more, or if the width of the sun beam 4 (obstruction member) is small, the number of riding rollers 23 may be reduced to one.

In addition, when the transmission rollers 22 simultaneously leave the first orthogonal surface 3b of the small beam 3 in the plurality of first running sections 20 arranged along the direction in which the scaffold frame 10 is moved, the scaffold frame 10 in the inclination direction load cannot be transmitted to the small beams 3, and there is a possibility that the scaffold frame 10 will not be supported by the small beams 3 in the inclination direction. Therefore, by setting the interval between adjacent first running sections 20 to be different from the interval at which the sun beams 4 (obstruction members) are provided, the transmission rollers 2 It is preferable that the first orthogonal surface 3b of the small beam 3 not be separated from the first orthogonal surface 3b.

Next, the second traveling section 40 will be explained with reference to FIG. 11.

Before the second running section 40 approaches the grand beam 4 provided to intersect with the small beam 3, the second running section 40 is moved by the transmission roller 42 and the guide roller as shown in FIG. 43 is switched to a position where it does not interfere with the sun beam 4 (obstruction member).

Regarding switching the position of the transmission roller 42 , first, the insertion pin member 62 of the first switching section 60 is pulled out, and the displacement regulating member 57 is operated to move away from the displacement prevention plate 51 . Then, the first holder 44 that holds the transmission roller 42 is moved in the direction shown by the arrow D1 in FIG. 11, and the transmission roller 42 is separated from the first orthogonal surface 3b of the small beam 3.

Subsequently, the first holder 44 is moved along the long hole 52a in the direction shown by the arrow D2, and further, the first holder 44 is moved along the long hole 58a in the direction shown by the arrow D3.

After moving the first holder 44 in this way, the position of the first holder 44 with respect to the second support 47 is determined by inserting the insertion pin member 62 into the second pin regulating portion 58c and the elongated hole 52a. be done.

As a result, the position of the transmission roller 42 is switched to a position where it does not interfere with the sun beam 4 (obstruction member).

On the other hand, regarding switching the position of the guide roller 43, first, the insertion pin member 66 of the second switching section 64 is pulled out. Then, the second holding body 45 is rotated about the pin member 65 in the direction shown by arrow R3 in FIG. 11, and the guide roller 43 is separated from the second orthogonal surface 3c of the small beam 3.

After rotating the second holder 45 in this way, by inserting the insertion pin member 66 into the second through hole 54b and the third through hole 56c, the position of the second holder 45 with respect to the first support 46 is adjusted. is positioned.

As a result, the position of the guide roller 43 is switched to a position where it does not interfere with the sunbeam 4 (obstruction member).

In this way, when there is an obstruction member such as the sun beam 4, the transmission roller 42 and the guide roller 43 are moved in advance to a position where they do not collide with the sun beam 4. Therefore, there is no need to lift and move the movable scaffold for slopes 100 using a crane or the like every time it straddles an obstruction member such as the sunbeam 4, so the movable scaffold for slopes 100 can be moved safely and smoothly. .

Further, in the first running section 20, the position of the transmission roller 22 is automatically changed, whereas in the second running section 40, the positions of the transmission roller 42 and the guide roller 43 are changed manually. Therefore, the positions of the transmission roller 42 and the guide roller 43 of the second running section 40 are not intentionally changed, and the second running section 40 is kept in contact with the obstruction member such as the sun beam 4, so that the second running section It is also possible for 40 to function as a movement limiter that limits the movement of the slope movable scaffold 100.

According to the above embodiment, the following effects are achieved.

According to the movable scaffolding for inclined surfaces 100 according to the present embodiment, the transmission roller 22 of the first running section 20 that is in contact with the first orthogonal surface 3b of the small beam 3 (existing member) is moved when the scaffolding frame 10 is moved. In conjunction with the riding roller 23 riding on the sun beam 4 (inhibiting member), it moves away from the first orthogonal surface 3b and to a position where it does not interfere with the sun beam 4.

In this way, the transmission roller 22 is automatically prevented from hitting the grand beam 4 (obstruction member). Therefore, there is no need to use a crane or the like to lift and move the movable scaffolding for inclined surfaces 100 every time it straddles an obstruction member such as the sunbeam 4, so it is possible to move the movable scaffolding for inclined surfaces 100 safely and smoothly. As a result, the number of man-hours required for working on the roof surface 1a (sloped surface) can be reduced.

Further, the following modifications are also within the scope of the present invention, and the configuration shown in the modification may be combined with the configuration described in the above embodiment, or the configurations described in the following different modifications may be combined. is also possible.

In the embodiment described above, the first running section 20 and the second running section 40 are provided on the scaffold frame 10. Instead, only the first running section 20 may be provided on the scaffold frame 10. In this case, since there is no second traveling part 40 in which the position of the rollers is manually switched, it becomes possible to move the slope movable scaffold 100 more smoothly.

Further, in the embodiment described above, each running section 20, 40, 70 is attached to the subframe 12 of the scaffold frame 10. Alternatively, each running section 20, 40, 70 may be attached to the main frame 11 of the scaffolding frame 10.

Further, in the embodiment described above, the riding member is the riding roller 23 that can ride on the inhibiting member (grand beam 4) while rotating. The riding member is not limited to one that rides on the inhibiting member while rotating, but may be one that rides on the inhibiting member while sliding on an inclined surface, for example.

Further, in the embodiment described above, the transmission roller 42 and the guide roller 43 are provided in the second running section 40 so as to sandwich the small beam 3 therebetween. For example, when the angle of the slope is relatively gentle, there is little possibility that the transmission roller 42 will come off the first orthogonal surface 3b of the small beam 3. For this reason, the second running section 40 may be configured without the guide rollers 43.

Although the embodiments of the present invention have been described above, the above embodiments merely show a part of the application examples of the present invention, and are not intended to limit the technical scope of the present invention to the specific configurations of the above embodiments. do not have.

100... Mobile scaffolding for sloped surfaces 1... Building 1a... Roof surface (sloped surface)
3...Small beam (existing member)
3a... Parallel surface 3b... First orthogonal surface 3c... Second orthogonal surface 4... Sun beam (obstruction member)
10... Scaffolding frame 11... Main frame 12... Sub frame 20... First running part 21... Running roller (first running roller)
22...Transmission roller (first transmission roller)
23... Riding roller (riding member)
27... Second lever member 29... Second support shaft 32... First lever member 35... First support shaft 36... Third support shaft 40... Second traveling portion 41. ... Running roller (second running roller)
42...Transmission roller (second transmission roller)
43... Guide roller 60... First switching section 64... Second switching section

Claims (6)

A mobile scaffold for slopes used when working on slopes,
A scaffolding frame body including a pair of main frames provided along the inclination direction of the inclined surface, and a plurality of subframes provided perpendicularly to the pair of main frames;
a first running section capable of moving the scaffolding frame along an existing member extending in a substantially horizontal direction that is provided in advance on the inclined surface;
The first running section is
A first running roller that moves the scaffolding frame by contacting a parallel surface of the existing member that is substantially parallel to the inclined surface;
A first transmission roller that transmits the load of the scaffolding frame in the inclined direction to the existing member by contacting a first orthogonal surface on the upper side that is substantially perpendicular to the parallel surface among the surfaces of the existing member. and,
a riding member configured to be able to ride on an inhibiting member extending from the existing member along the inclination direction;
When rotating the first traveling roller to move the scaffolding frame, the first transmission roller moves away from the first orthogonal surface in conjunction with the climbing member riding on the inhibiting member, and Move to a position where it does not interfere with the obstruction member,
Mobile scaffolding for slopes. The riding member is a roller member that can ride on the inhibiting member while rotating, and is arranged on the opposite side of the first transmission roller with the first traveling roller in between.
The mobile scaffold for inclined surfaces according to claim 1. The riding member is provided at one end of a first lever member that is rotatable about a first support shaft provided along a direction in which the scaffold frame is moved,
The first transmission roller is provided at one end of a second lever member that is rotatable about a second support shaft parallel to the first support shaft,
The other end of the first lever member and the other end of the second lever member are rotatably connected to each other via a third support shaft parallel to the first support shaft and the second support shaft.
The mobile scaffold for inclined surfaces according to claim 1 or 2. A plurality of the first traveling parts are arranged along the direction in which the scaffold frame is moved,
The interval between the adjacent first traveling parts is set to a different interval from the interval at which the inhibiting member is provided.
A mobile scaffold for inclined surfaces according to any one of claims 1 to 3. Further comprising a second traveling section capable of moving the scaffold frame along the existing member,
The second running section is
a second running roller in contact with the parallel surface;
a second transmission roller in contact with the first orthogonal surface;
A second transmission roller that can switch the position of the second transmission roller between a position where it can contact the first orthogonal surface and a position where the second transmission roller does not interfere with the inhibiting member when moving the scaffolding frame. 1 switching section;
A mobile scaffold for inclined surfaces according to any one of claims 1 to 4. The second running section is
A guide roller that is in contact with a second orthogonal surface on the lower side that is substantially orthogonal to the parallel surface among the surfaces of the existing member;
a second switching unit capable of switching the position of the guide roller between a position where the guide roller can contact the second orthogonal surface and a position where the guide roller does not interfere with the inhibiting member when moving the scaffolding frame; , further having
When the second transmission roller is in a position where it can contact the first orthogonal surface and the guide roller is at a position where it can come into contact with the second orthogonal surface, the existing member is configured to transmit the second transmission in the inclined direction. being sandwiched between the roller and the guide roller;
The mobile scaffold for inclined surfaces according to claim 5.