JP5824243B2 - Unit scaffolding - Google Patents

Description

  The present invention relates to a unit scaffold that is suitable for forming a working scaffold used in high-altitude work.

  There have been various proposals for work scaffolds used in high-altitude work. For example, Patent Document 1 discloses a work scaffold including a frame scaffold using a building frame as a frame. Yes.

  That is, the frame scaffolding stands a plurality of building frames formed in a gate shape with a pair of vertical members and a horizontal member that connects the upper ends of the pair of vertical members along the longitudinal direction of the building, for example. At the same time, a scaffold for working extending in the longitudinal direction is formed by spanning a scaffolding plate over the horizontal members in the plurality of standing building frames.

  On the other hand, in this framework scaffold, the upper building frame is connected to the lower building frame so as to extend upward, and the scaffold plate is also bridged over the upper building frame in the longitudinal direction. Forming a working scaffold extending to

  That is, in this framework scaffold, a working scaffold extending to an arbitrary length in the upward and lateral directions along the wall surface of the building can be formed. And in this framework scaffold, at the time of its disassembly, it is sufficient to follow a procedure that is the reverse of the procedure for assembling this framework scaffold.

  Therefore, in this framework scaffold, when it is used, it is assembled by work by an operator, and after use is completed, that is, when not in use, it may be disassembled by work by an operator and removed.

JP 2010-196403 A

  In the frame scaffold disclosed in Patent Document 1 described above, for example, there is basically a problem in that a working scaffold extending to an arbitrary length in the upward and lateral directions along the wall surface of the building can be formed. Not necessarily, but under limited conditions, its use may be unsuitable.

  In other words, when working at a high place, it is necessary to install a working scaffold that does not extend in the horizontal direction but only in the upward direction due to the situation at the work site, etc., and the entire time from installation to removal If there is not enough room, the above-mentioned frame scaffold is unsuitable.

  In other words, even in the case of forming a working scaffold that does not extend in the horizontal direction but extends only in the upward direction with the above-described framework scaffold, the work is performed by an operator, so that the building frame can be erected and the scaffold plate between the building frames can be formed. Crossover is performed.

  At this time, installation work of diagonal members for reinforcing a so-called frame and installation work of handrails as safety equipment are also performed in parallel, and a considerable time is required as a whole.

  And after the original work using the work scaffold is completed, the work scaffold is disassembled and removed, but this disassembly follows a procedure that is the reverse of the assembly procedure. It will take time.

  As a result, when working at a high place using a working scaffold that does not extend in the horizontal direction but only in the upward direction, when there is no allowance for the entire time from the formation to the removal of the working scaffold, The use of the above-described frame scaffold is not preferable.

  The present invention was devised in view of the above-described present situation, and the object of the present invention is to provide a working scaffold that does not extend in the horizontal direction but only in the upward direction when working at a high place. It is to provide a unit scaffold that facilitates formation and its removal.

In order to achieve the above-described object, the structure of the unit scaffold according to the present invention is a unit scaffold that forms a work scaffold that allows one of the units and the other unit to be separably connected and a handrail is provided to allow entry of workers. The one unit includes a building frame formed of a vertical member and a horizontal member, a handrail frame that is freely connected to the vertical member of the building frame in a horizontal direction, and a horizontal member in the building frame. The other unit is connected to a building frame formed of a vertical member and a horizontal member and a vertical member in the building frame so as to freely swing in the horizontal direction. A handrail frame of one unit is detachably connected to a vertical member in the building frame of the other unit, and a handrail frame of the other unit is detachably connected to a vertical member in the building frame of one unit, One unit's scaffolding frame is It is detachably connected to the horizontal member in a frame, and comprising and an opening to permit passage of the floorboards and workers scaffolding frame to allow the entrance of personnel.

  Therefore, in the present invention, by preparing a plurality of one unit and the other unit, it is possible to easily form a working scaffold that does not extend in the lateral direction but extends only in the upward direction.

  That is, when assembling, at the lowest stage, one unit and the other unit are erected while using a base member or the like, and the handrail frame of one unit is connected to the building frame of the other unit, and the other unit By connecting the handrail frame to the building frame of one unit facing each other and connecting the scaffolding frame of one unit to the building frame of the other unit, workers can enter the inside formed by the one unit and the other unit. To form a working scaffold.

  At this time, since the handrail frame of the one unit and the other unit is merely connected to the building frame of the opposing unit, it forms a handrail in the working scaffold. Compared with the case where the frame is provided by a so-called retrofit, the work of providing the handrail on the work scaffold becomes easier and quicker.

  The scaffolding frame of the one unit is simply connected to the building frame of the opposing unit, and the work scaffolding is formed by the floorboard of the scaffolding frame. Compared to the case where the scaffolding plate is installed by a so-called retrofit, the work scaffolding can be formed easily and quickly.

  On the other hand, the other unit is connected to the lowermost unit from above, and the other unit is connected to the lowermost unit from the upper side, so that the upper part of the floor plate of the lower scaffolding frame, that is, work An opening of the upper scaffolding frame is opposed to the upper side of the scaffold, and this opening becomes a passage for the worker.

  Then, the unit that is sequentially connected upward is the unit opposite to the unit below, so that the scaffolding frame on which the working scaffold formed by the floor plate of the scaffolding frame positioned below is positioned upward is provided. It will be continuous sequentially through the openings it has.

  By the way, the vertical members in the building frame are a pair having an arbitrary interval, and the horizontal members in the building frame are a plurality of pieces arranged at appropriate intervals in the vertical direction and both ends are connected to the vertical member In this case, it becomes possible to make this building frame a so-called ladder, and by using this ladder, the worker can easily reciprocate the working scaffolds that are up and down.

  In the present invention, when removing after the completion of the original work, it is only necessary to follow the procedure reverse to the procedure for assembling as described above. Compared to the case of removal, the removal work can be performed easily and quickly.

  As a result, the present invention facilitates the formation and removal of the working scaffold that does not extend in the lateral direction but only in the upward direction when performing work at a high place.

It is a perspective view which shows the unit scaffold by this invention. It is a perspective view which shows the one unit in the unit scaffold of FIG. It is a perspective view which shows the other unit in the unit scaffold of FIG. It is a fragmentary figure which shows the pivoting means in the unit scaffold of FIG. 1, (A) is a front view, (B) is a partial cross section top view. It is a fragmentary top view which shows the connection means in the unit scaffold of FIG. It is a partial cross section front view which shows the scaffold frame connection means in the unit scaffold of FIG.

  In the following, the present invention will be described based on the illustrated embodiment. The unit scaffold according to the present invention forms a working scaffold that does not extend in the lateral direction but only in the upward direction for working at a high place. Suitable for.

  By the way, it can be proposed to use, for example, a high-altitude work vehicle equipped with a vertical lift or a foldable hooked arm for high-altitude work. Compared to the case of assembling, forming and dismantling and removing, it does not take much time for the incidental work for the original work that is a work at a high place, and therefore the time required for the original work is not shortened. That's it.

  However, this high-altitude work vehicle can be used only in open spaces that are connected to the road on which the high-altitude work vehicle runs without being supported. For example, it can be connected to a road in a railway station building or a platform. The high-altitude work vehicle cannot be used for high-altitude work in a place that tends to become a limited space.

  It is assumed that the unit scaffold of the present invention can form a working scaffold that does not extend in the lateral direction but extends in the upward direction in a limited place such as the inside of a railway station or a platform.

  And the unit scaffold of this invention is easier to form and remove compared to the case of using the conventional framework scaffold so that it can be used under limited conditions where there is no allowance for the total time from formation to removal. It is assumed that a working scaffold that can significantly reduce the time required can be formed.

  Therefore, as shown in FIG. 1, the unit scaffold according to the present invention allows an operator to enter inside by connecting one unit Y1 and the other unit Y2, that is, by connecting two units. A working scaffold (not shown) is formed with a handrail (not shown).

  At this time, in the present invention, it is assumed that the two units Y1 and Y2 are detachably connected, thereby conveying and assembling as compared with the case where the two units Y1 and Y2 are integrated in advance. This facilitates the so-called handling in the case of.

  Under such a premise, one unit Y1 has a building frame 1, a handrail frame 2, and a scaffolding frame 3, as shown in FIG. 2, and the other unit Y2 is also shown in FIG. As shown, the building frame 1 and the handrail frame 2 are provided.

  As shown in FIGS. 2 and 3, in the one unit Y1 and the other unit Y2, the vertical frame 1 is formed in a rigid body by the vertical member 11 and the horizontal member 12, and the handrail frame 2 is formed in a rigid body. While being formed, it is connected to the building frame 1 so as to freely swing in the horizontal direction. On the other hand, in the unit Y1, the scaffold frame 3 is connected to the building frame 1 so as to be raised and lowered while being formed in a rigid body.

  In the vertical frame 1, the vertical members 11 are arbitrary, that is, for example, a pair having an interval of approximately 900 mm, and the horizontal members 12 are a plurality of pieces that are aligned at appropriate intervals in the vertical direction. It is integrally connected to the vertical member 11.

  Since the interval between the vertical members 11 and 11 is set to approximately 900 mm, the interval between the vertical members 11 and 11 becomes larger than the shoulder width of the worker, and the worker uses the building frame 1 as a ladder as described later. To make it easier.

  Further, the vertical member 11 is made of a metal cylindrical body, for example, an aluminum round pipe, like the vertical member in this type of building frame, and has a joint portion 11a whose upper end is reduced in diameter. By inserting the portion 11a into the lower end portion (not shown) of the upper vertical member 11, the vertical member 11 can be connected vertically.

  Incidentally, since the lower end portion of the vertical member 11 is also cylindrical, not only the insertion of the joint portion 11a which is the upper end portion of the lower vertical member 11 is allowed, but also the most upright on the ground or the like. In the lower building frame 1, although not shown, the upper end side cylindrical portion corresponding to the joint portion of the base member is inserted into the lower end portion of the vertical member 11.

  The horizontal member 12 is basically a so-called head joint that connects the upper ends or upper end portions of the pair of vertical members 11, and if not previously shown, although not shown, hook members provided at both ends of the scaffold plate Allow engagement.

  On the other hand, in the present invention, the uppermost horizontal member 12 functions as a so-called head connection. However, as shown in the figure, the horizontal member 12 extends from the lower end to the upper end of the vertical member 11. A plurality of lines are arranged at equal intervals in the vertical direction.

  In this way, when the horizontal members 12 connected to the pair of vertical members 11 and 11 are plural and are aligned at equal intervals in the vertical direction, the vertical members 11 and the horizontal members 12 It becomes possible to use the building frame 1 made of as a ladder.

  On the other hand, since the both ends of the horizontal member 12 are welded to the vertical member 11, for example, the horizontal member 12 is made of the same metal material as the vertical member 11, and the horizontal member 12 is connected to the head as described above. However, in consideration of the fact that it functions as a ladder, for example, it is intended to reduce the weight of the building frame 1 and the square pipe having a rectangular or trapezoidal cross section. It is preferable that it is made of a mold material having a L-shaped cross section.

  The handrail frame 2 is in the present invention, and a handrail member 21 whose base end is pivotally attached to the vertical member 11 in the building frame 1 and whose other end has an arbitrary length and extends in the horizontal direction, It has a connecting means 25 that is provided at the other end of the handrail member 21 and is connected to the vertical member 11 in the building frame 1 of the opposing unit.

  As a result, the handrail frame 2 is in the one unit Y1 and the other unit Y2, and can be horizontally swung so that it can be folded along the building frame 1 for convenient transportation and storage.

  In the present invention, the handrail frame 2 forms a shielding surface below the handrail member 21, and avoids a risk that an operator may fall through the handrail member 21 in advance.

  Under the premise as described above, the handrail frame 2, that is, the handrail frame 2 in the one unit Y1 and the other unit Y2, is as shown in FIGS. 2 and 3, and the handrail member 21 and the crosspiece member 22, It has a stud member 23 and a diagonal member 24, and further has a connecting means 25.

  And in this handrail frame 2, the handrail member 21 and the crosspiece member 22 are connected to the vertical member 11 in the building frame 1 via the pivoting means 26 at the base end as one end, and the tip as the other end is arbitrary. It extends in the horizontal direction with an interval.

  Further, in the handrail frame 2, the intermediate pillar member 23 and the diagonal member 24 are connected to the handrail member 21 and the crosspiece member 22 at the upper and lower ends thereof, that is, between the handrail member 21 and the crosspiece member 22, that is, shielded. A surface (not shown) is formed.

  The length in the horizontal direction of the handrail member 21 and the crosspiece member 22 is, for example, approximately 900 mm so as to correspond to the dimension between the vertical members 11, 11 in the building frame 1 being approximately 900 mm. Is good.

  Thus, when the handrail frame 2 is swung and overlapped with the vertical frame 1, that is, when it is folded, there is no dimensional difference in mischief, which is convenient for transportation and storage.

  The length in the vertical direction of the stud member 23 and the diagonal member 24 is a length considering that, for example, when the handrail member 21 is a handrail, it is desirable to set the handrail to a height called waist height. It is good to be set to.

  For example, if the height position of the crosspiece member 22 is set so that a gap of approximately 100 mm to 200 mm is provided between the crosspiece member 22 and the scaffold frame 3 below the crosspiece member 22, the vertical direction of the stud member 23 and the diagonal member 24 Will be approximately between 700 mm and 800 mm.

  Further, the handrail member 21 and the crosspiece member 22, the stud member 23 and the diagonal member 24 are each made of an aluminum square pipe, and the connection of each member is made by welding. Even when it acts, the setting has a predetermined mechanical strength.

  By the way, in the handrail frame 2, if the handrail member 21 forms a so-called handrail and a shielding surface is formed below the handrail, the configuration of the crosspiece member 22, the stud member 23, and the diagonal member 24 is arbitrary. Good to be.

  However, as described above, the handrail frame 2 has a predetermined mechanical strength even when the weight of the worker acts, so that the handrail member 21 is opposed to the handrail member 21. The member 22 is also an indispensable member, and the intermediate column member 23 and the diagonal member 24 provided between the handrail member 21 and the crosspiece member 22 are also indispensable members.

  From this point of view, it is not possible to omit the crosspiece member 22, the intermediate pillar member 23 and the diagonal member 24 provided below the handrail member 21, but from the standpoint of forming a shielding surface, the intermediate pillar member is not shown. Instead of 23 and the diagonal member 24, a plate material may be suspended from the lower end of the handrail member 21.

  By the way, the base end which is one end of the handrail member 21 and the base end which is one end of the crosspiece member 22 are respectively connected to the vertical member 11 in the building frame 1 via the pivoting means 26, thereby the handrail member 21 and the crosspiece member 22. Can swing in the horizontal direction, that is, the tip side portion having the connecting means 25 can be turned in the horizontal direction.

  Therefore, in the one unit Y1 and the other unit Y2, the handrail frame 2 can be folded along the building frame 1 and is not unnecessarily bulky during storage and the like when not in use.

  The pivot means 26 provided at the base end of the handrail member 21 and the base end of the crosspiece member 22 has a hinge structure, and as shown in FIG. 4, a hinge plate 26a connected to the vertical member 11 in the building frame 1, The hinge plate 26a is provided with a hinge shaft 26b made of a bolt and nut that passes through the proximal end portion of the handrail member 21 or the proximal end portion (not shown) of the crosspiece member 22.

  At this time, in this invention, since the handrail frame 2 is connected to the building frame 1 in advance, it is intended to simplify so-called assembling work. Therefore, in the pivot attachment means 26, the hinge shaft 26a is not necessarily connected to the hinge shaft. The hinge shaft 26b does not need to be configured to be able to be extracted, and therefore the hinge shaft 26b may be configured as a rivet structure and cannot be extracted, although not shown.

  On the other hand, the connecting means 25 provided at the front end of the handrail member 21 and the front end of the crosspiece member 22 has a hook structure, and as shown in FIG. 5, as viewed in plan so as to position the longitudinal member 11 in the building frame 1 inward. A hook plate 25a that has a U-shape and is held in the lateral direction, and a hook pin 25b that penetrates the tip of the hook plate 25a in the lateral direction and prevents the vertical member 11 from coming out from the inside. .

  Further, although not shown, the flange pin 15b is connected to the hook plate 25a by a connecting wire so as not to cause so-called loss. In addition, the hook pin 15b is formed so as to be bendable as shown in the figure, but it is not always necessary to be formed so that the hook pin 15b functions. It may be formed as follows.

  By the way, regarding the direction of the hook plate 25a in the connecting means 25 with respect to the handrail member 21 and the crosspiece member 22 in the handrail frame 2, the following considerations are made.

  That is, as shown in FIG. 1, when the two units Y1 and Y2 are connected to form a working scaffold inside, the handrail frame 2 connected to the unit Y1 is swung from the inside. The vertical member 11 of the building frame 1 in the other unit Y2 is inserted into the hook plate 25a of the handrail member 21 and the crosspiece member 22, that is, the hook plate 25a is in a state of holding the vertical member 11.

  On the other hand, the handrail frame 2 connected to the other unit Y2 is swung from the outside so that the vertical member 11 of the building frame 1 in the one unit Y1 enters the hook plate 25a of the handrail member 21 and the crosspiece member 22. In other words, it is said to be ready to hold.

  5 shows the hook plate 25a of the handrail member 21 and the crosspiece member 22 in the handrail frame 2 of the other unit Y2, and although not shown, the mirror view of FIG. The hook board 25a which the handrail member 21 and the crosspiece member 22 in the handrail frame 2 of Y1 show is shown.

  As described above, it is assumed that the direction of the hook plate 25a of the handrail member 21 and the crosspiece member 22 in the handrail frame 2 is different between the one unit Y1 and the other unit Y2 because of the operation using the two units Y1 and Y2. This is because it is possible to further simplify the work for forming the scaffold.

  That is, first, in the one unit Y1 and the other unit Y2, when the handrail frame 2 is both set to be swung from the inside to the outside and connected to the vertical member 11 in the building frame 1, the one unit Y1 is During the operation of connecting the scaffold frame 3 having the horizontal frame 12 to the building frame 1 of the other unit Y2, if the other unit Y2 has the handrail frame 2 without swinging, there is a risk of interference, and the scaffold frame 3 There is a possibility that the connection to the building frame 1 will not carry well.

  By the way, before the scaffolding frame 3 in the one unit Y1 is brought down, when the handrail frame 2 in the other unit Y2 is swung and connected to the vertical member 11 of the building frame 1 in the one unit Y1, then the one unit Y1 is There is a possibility that it is not easy to bring down the scaffold frame 3 and connect it to the horizontal member 12 of the building frame 1 in the other unit Y2.

  On the other hand, when setting is such that the handrail frame 2 in the other unit Y2 is connected to the vertical member 11 in the building frame 1 of the one unit Y1 from the outside, the scaffolding frame 3 included in the one unit Y1 is used as the building frame of the other unit Y2. No need to worry about whether or not the work of connecting to the horizontal member 12 in 1 can be carried well, so that the so-called assembling work is speeded up.

  For example, in the one unit Y1 and the other unit Y2, if the handrail frame 2 is set so that both the handrail frame 2 is swung from the outside to the inside and connected to the vertical member 11 in the building frame 1, the assembly work is smoothly performed. There is a risk of being unable to carry.

  That is, for example, when a work scaffolding composed of two units Y1 and Y2 is provided at a so-called marginal position on the track side in the platform, for example, the handrail frame 2 of one unit Y1 is used as the building frame 1 of the other unit Y2. There is a possibility that the connecting operations cannot be performed smoothly.

  In order to avoid the occurrence of the above problems, in the present invention, it is assumed that the direction of the hook plate 25a of the handrail member 21 and the crosspiece member 22 in the handrail frame 2 is different between the one unit Y1 and the other unit Y2. .

  The scaffold frame 3 is a pair having an arbitrary interval, a base end of which is pivotally attached to the horizontal member 12 in the building frame 1 and the other end of the girder member 31 is extended in the horizontal direction in parallel, and the pair. A connecting member 32 connected to the horizontal member of the building frame 1 of the opposing unit and the other end of the spar member 31 to be connected to each other, and a worker extended to the base end side portion of the pair of spar members 31 The floor plate 33 is allowed to enter, and the opening 34 is formed at the tip side portion of the pair of girder members 31 to allow the passage of the worker.

  Therefore, the scaffold frame 3 is in the unit Y1, and the pair of girders 31 and 31 can be swung in the vertical direction, that is, can be folded and folded along the building frame 1, Convenient transport and storage.

  In addition, when the scaffold frame 3 is brought down to a so-called use state, the ends of the pair of girders 31 and 31 are carried by the horizontal member 12 of the building frame 1 in the other unit Y2, and the so-called floor board 33 is used. A scaffold can be formed, and the opening 34 can be a passage adjacent to the scaffold.

  Accordingly, in the scaffold frame 3 shown in FIGS. 1 and 2, the base ends of the pair of girders 31, 31 are connected to the horizontal member 12 in the building frame 1 via the pivot attachment means 35. The leading ends of the girders 31, 31 have a connecting member 32.

  Although not shown in detail, the pivot means 35 is formed in the same structure as the pivot means 26 in the handrail frame 2 shown in FIG.

  That is, the pivoting means 35 will be described with reference to FIG. 4. FIG. 4 (A) corresponds to a plan view of the pivoting means 35, and FIG. 4 (B) shows the pivoting means. This corresponds to the front view in FIG.

  When the vertical member 11 shown in FIG. 4 is in the pivot means 35, instead of the horizontal member 12, the handrail member 21 or the crosspiece member 22 is also in the pivot means 35. Instead of the member 31.

  In the pivot means 35, the hinge plate is connected to the horizontal member 12, and the hinge shaft passing through the hinge plate penetrates the base end portion of the girder member 31 together.

  Since the pivot means 35 is configured as described above, the girders 31 in the scaffold frame 3 are shown in FIG. 4B in a state where the base end portion is pivotally attached to the hinge plate by the hinge shaft. The left side in (B) can be swung vertically.

  Incidentally, also with respect to the above-mentioned pivot attachment means 35, the hinge shaft may be configured in a rivet structure so that it cannot be removed from the hinge plate.

  By the way, the length of the pair of girder members 31 in the horizontal direction is substantially equal to the length dimension of the handrail frame 2 described above. It becomes possible to easily engage with the horizontal member 12 of the building frame 1 in the unit Y2.

  Although not shown, a suspension wire is provided between the distal end of the pair of beam members 31 and the building frame 1 in one unit Y1, and the distal end of the beam member 31, that is, the scaffold frame 3 is disposed. Consideration may be given to lowering more than necessary.

  On the other hand, as shown in FIG. 6, the connecting member 32, that is, the connecting member 32 connected to the horizontal member 12 in the building frame 1 of the other unit Y <b> 2 that connects the other end of the pair of girder members 31. The cross section is formed in a shape that allows the intrusion into the inner side of the horizontal member 12 from below by making the cross section downward U-shaped.

  And the collar pin 32a penetrates the lower side part extended below, and it prevents that the horizontal member 12 slips out from the inside, that is, the connecting member 32 is separated from the horizontal member 12 and is prevented from rising.

  Further, although not shown, the flange pin 32a is connected to the connecting member 32 by a connecting wire so as not to cause so-called loss. Although the hook pin 32a is formed so as to be bendable in the drawing, it does not have to be formed so that it can be bent from the place where the hook pin 32a functions. It may be formed in a shape.

  As shown in the figure, the floor plate 33 is extended at the base end side portion of the pair of girder members 31 to allow entry of workers, and the opening 34 is formed at the front end side portion of the pair of girder members 31. Allow the passage of workers.

  As for the floor plate 33, in the drawing, it is assumed that both side end portions are extended and supported on the base end side portions of the pair of girder members 31, but where the floor plate 33 functions, that is, From the viewpoint of forming a working scaffold, the floor plate 33 may be formed integrally with the girder member 31.

  At this time, the floor plate 33 is connected to the lower end portion side of the girder member 31, and therefore, the girder member 31 rises up with respect to the floor plate 33. From this, the toe plate, In addition, it is possible to fulfill the function of a toe plate that prevents small items placed on the floor plate 33 from falling.

  However, in order to provide a toe plate that functions more effectively, it is of course possible to provide a toe plate in a foldable manner on the floor plate 33. At this time, the toe plate is provided on the four sides of the floor plate 33. Of course it is good.

  According to the present invention formed as described above, the working scaffold is formed using the unit scaffold according to the following procedure.

  First, in a place where it is desired to provide a work scaffold, the base members are arranged on the ground at a predetermined interval in the front, rear, left, and right directions, for example, in the illustrated embodiment, at an interval of approximately 900 mm.

  And the upper end side cylindrical part equivalent to the joint part in this arrange | positioned base member is made to conduct | electrically_connect to the lower end part of the vertical member 11 in the building frame 1 which forms one unit Y1, and the vertical member 11, ie, the building frame 1 is connected. Is set up.

  By standing the building frame 1 in the other unit Y2, one unit Y1 and the other unit Y2 facing each other are erected.

  Then, the unit Y1 and the other unit Y2 that are erected are connected to the other party using the handrail frames 2 respectively. Accordingly, the one unit Y1 and the other unit Y2 are integrally connected by the pair of handrail frames 2.

  At this time, in the illustrated embodiment, the handrail frame 1 in the one unit Y1 is swung from the inside to the outside so as to be connected to the vertical member 11 of the building frame 1 to the other unit Y2.

  Thus, one handrail in a pair is provided between the one unit Y1 and the other unit Y2.

  After the connection of the handrail frame 2 in the one unit Y1 to the other unit Y2, the scaffold frame 3 in the one unit Y1 is tilted so that the connecting member 32 at the tip of the girder member 31 is moved to the side of the building frame 1 in the other unit Y2. Connect to the frame 12.

  As a result, a working scaffold by the floor plate 33 is provided between the one unit Y1 and the other unit Y2, and at this time, the opening 34 close to the working scaffold becomes a passage for the worker.

  Since the work platform is provided on the floor plate 33, it is possible to perform an operation of connecting the other unit Y2 to the one unit Y1 and connecting the one unit Y1 to the other unit Y2 using this scaffold.

  Further, the handrail frame 2 in the other unit Y2 is pivoted from the outside to the inside so as to be connected to the vertical member 11 of the building frame 1 in the one unit Y1.

  As a result, the other handrail in the pair is provided between the one unit Y1 and the other unit Y2, and the one unit Y1 and the other unit Y2 are integrally formed by the pair of handrail frames 2. It is connected.

  As described above, the formation of the working scaffold by the pair of units Y1 and Y2 at the lowermost stage is completed. However, the connecting work required for connecting the pair of units Y1 and Y2 to form the working scaffold. Is a work of connecting the pair of handrail frames 2 and 2 and a work of connecting the scaffold frame 3.

  Therefore, in the case of using the unit scaffold of the present invention, it becomes possible to extremely reduce the total number of connecting operations required compared to the case of using the conventional framework scaffold, and it takes a lot of time to form the work scaffold. Therefore, the time required for the original work is not unnecessarily shortened.

  Incidentally, in order to improve the standing property in the lowermost pair of units Y1 and Y2, although not shown, it is also possible to provide a stand such as an outrigger, and for this stand, not only the bottom step but also the upper pair of units Y1. , Y2 may be provided over two stages.

  In order to extend the working scaffold upward, the pair of units Y1 and Y2 may be repeatedly connected to the upper side, but the other unit Y2 is connected to the existing one unit Y1 on the lower side. One unit Y1 is connected to the other unit Y2.

  As a result, a passage made of the opening 34 is formed above the work scaffold made of the lower floor plate 33, and the worker can move from the lower work scaffold to the work scaffold above. Become.

  At this time, in this invention, since the building frame 1 forms a ladder, the worker can reciprocate between the upper working scaffold and the lower working scaffold using the building frame 1. It will be possible.

  Incidentally, when removing this unit scaffold from its installation location, it is sufficient to follow the above procedure in reverse, but the pair of units Y1, Y2 is composed of a pair of handrail frames 2, 2, a single scaffold frame 3, The total number of parts that are separated during removal, that is, dismantling, is extremely smaller than in the case of a conventional framework scaffold, and it does not take much time for removal as well as formation. It will be.

  In the above description, the unit scaffold according to the present invention does not extend in the lateral direction but extends only in the upward direction. However, the unit scaffold standing independently can be used, for example, using a single pipe. Of course, it may be laterally or continuously in a quadrilateral shape in plan view, and at this time, the formation and removal of the unit scaffolding will naturally occur.

  It is not possible to use an aerial work vehicle that is not connected to the road and is equipped with a vertical lift or a folding arm that can be folded. For example, it forms a work platform for working at a high place in a railway station building or platform. Suitable for.

DESCRIPTION OF SYMBOLS 1 Building frame 2 Handrail frame 3 Scaffolding frame 11 Vertical member 11a Joint part 12 Horizontal member 21 Handrail member 22 Crosspiece member 23 Interim member 24 Diagonal member 25 Connecting means 25a Hook plate 25b, 32a Hook pin 26, 35 Pivoting means 26a Hinge Plate 26b Hinge shaft 31 Girder member 32 Connecting member 33 Floor plate 34 Opening Y1 One unit Y2 Other unit

Claims (4)

A unit scaffold that forms a scaffold for work that allows one of the unit and the other unit to be separably connected and provides a handrail to allow entry of workers,
On the other hand, the unit is a building frame formed of vertical and horizontal members, a handrail frame that is freely connected to the vertical members of this building frame in a horizontal direction, and can be raised and lowered to the horizontal members of the building frame. And a scaffolding frame connected to
The other unit has a building frame formed of a vertical member and a horizontal member, and a handrail frame that is freely connected to the vertical member of the building frame so as to freely swing in the horizontal direction.
The handrail frame of one unit is detachably connected to the vertical member of the building frame of the other unit, the handrail frame of the other unit is detachably connected to the vertical member of the building frame of one unit, and the scaffolding frame of one unit is the other unit Is separably connected to the horizontal member in the building frame,
A unit scaffold characterized in that the scaffolding frame has a floor board that allows entry of workers and an opening that allows passage of workers.   The building frame is composed of a pair of vertical members having an arbitrary interval, and a plurality of horizontal members that are connected to the pair of vertical members at both ends and aligned at appropriate intervals in the vertical direction. The unit scaffold according to 1.   The handrail frame is provided at the other end of the handrail member and is opposed to the handrail member whose base end is pivotally attached to the vertical member in the building frame and the other end has an arbitrary length and extends in the horizontal direction. The unit scaffold according to claim 1, further comprising connecting means connected to a vertical member in the building frame of the unit to be operated.   The scaffolding frame is a pair of girder members having an arbitrary interval, the base end pivotally attached to the horizontal member in the building frame, and the other end being parallel and extending in the horizontal direction, and the pair of girder members A connecting member connected to the horizontal member in the building frame of the opposing unit, and a floor board that is extended on the base end side portion of the pair of girder members and allows workers to enter, The unit scaffold according to claim 1, further comprising an opening formed at a distal end side portion of the pair of beam members and allowing an operator to pass therethrough.

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