JP2019183395A - Scaffolding unit - Google Patents

Abstract

To provide a scaffolding unit improved in work efficiency by allowing simple and easy attaching work to a strut.SOLUTION: A scaffolding unit 1 fixed to a cylindrical strut S by surrounding it from the circumferential direction has a scaffolding unit body 10 formed by folding a cutout piece cutout from a metal sheet into a roughly U-shape. The scaffolding unit body 10 is provided with a first curved part 11 plastically deformed into a roughly semi-circular curved shape when pressed onto an outer peripheral surface of the strut S at the center of bottom pieces 12, 12. An interval between each of end parts of the first curved part 11 of both bottom pieces 12 is fastened with a bolt member 21, in a facing state of one side and the other side folding parts 31, 32 of outer side parts 17 of both one side folding pieces 13 and both other side folding pieces 14 set in a short direction length roughy equal to a radius of the strut S, so that a second curved part 15 of the one side folding piece 13 and the other side folding piece 14 of each of the bottom pieces 12 is closely attached to the strut S together with the first curved part 11.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a scaffold unit that is secured to a support column having a circular outer peripheral surface in a state of being surrounded from the circumferential direction.

  This type of scaffolding unit has a base that abuts against a pole such as a utility pole at the base end of the tread plate, and is a pivot that is pivotally mounted within a predetermined angle so as to be swingable up and down and projecting against the pole. A belt-like winding belt with one end attached to one side of the base part with a leg part at the bottom of the tread plate part is turned around the support column, and the other end of the winding belt that is turned around the support column is provided on the other side of the base part. There is known one in which a stepping plate portion is fastened to a support from a circumferential direction by tightening a winding belt by performing a winding operation one pitch at a time with a wound winding operation tool (see Patent Document 1). .

Japanese Patent No. 2530101

  However, since the winding belt itself is flexible in the above-mentioned conventional one, it is very difficult to perform the work of turning the winding belt around the support column while attaching the hand to the winding belt at a high place. The operation of engaging the other end of the wound belt wound around the winding operation tool so as to be able to be wound up is very troublesome, and the working efficiency when the scaffold unit is fixed to the support column becomes extremely poor.

  The present invention has been made in view of such a point, and an object of the present invention is to improve work efficiency when fastening so that the work of fastening from the circumferential direction to the support can be easily and easily performed. An object of the present invention is to provide a scaffold unit that can achieve this.

  In order to achieve the above object, in the present invention, a scaffold unit main body formed in a substantially U-shaped cross section on the premise of a scaffold unit fastened in a state of being surrounded from a circumferential direction with respect to a support having a circular outer peripheral surface. Is provided. Further, when the scaffold unit body is pressed against the outer peripheral surface of the support column, it is preliminarily plastically deformed into a curved shape of a substantially semicircular arc while being in close contact with the substantially semicircular arc portion of the outer peripheral surface of the support column. A bottom piece extending in the longitudinal direction on one side in the longitudinal direction and the other side in the longitudinal direction of the first curved portion in a state where the first curved portion extending in the longitudinal direction is sandwiched between the bottom portion of the scaffold unit main body, One side bent piece that is bent substantially at right angles from one side in the short direction of both bottom pieces, and opposite one side bent piece from the other side in the short direction of both bottom pieces. The other side bent pieces bent at substantially right angles, the one side bent pieces, and the first bent portion side end portions of the other side bent pieces, respectively, are provided, and the first bent portions are made plastic. For each approximately one quarter of the remaining semicircular arcs of the outer peripheral surface of the support column that remains when deformed Provided with a second curved portion which is curved so as to be in close contact respectively along the outer peripheral surface of the struts, the. And the both bottom parts which set both said one side bending pieces and both said other side bending pieces to the transversal length substantially matched with the radius of the said support | pillar, and are located in the vicinity of each said 2nd bending part When the first curved portion side end of the piece is plastically deformed with the first curved portion, the one bottom end of the one side folded piece and the other side folded piece face each other. And an insertion hole for inserting a fastening member for tightening the first and second curved portions so as to firmly adhere to the outer peripheral surface of the support.

  Further, both the one-side bent pieces are provided with one-side bent portions that are bent so that the opposite one-side ends thereof face each other when the first curved portion is plastically deformed. While the bent portions are pressed against each other and have a function as a scaffold, the other-side bent pieces are opposite to each other at the opposite side when the first curved portion is plastically deformed. The other side bent portion that is bent so as to face each other is provided at the inner side portion, and the opposite side bottom side one side ends are separated from each other at the outer side portion, and bent to the one side bent piece side. It has a function as a support rail of a support that includes a lip portion and supports a long material extending in the short direction of the other side bent pieces in a state where the leg portions are locked to the both lip portions. It may be.

  Moreover, you may provide the notch recessed part which continues in a transversal direction in the state which carried out the plastic deformation of the said 1st bending part in the anti-first bending part side end of both said one side bending pieces and bottom piece.

  Further, the first bending portion may be provided with a slit extending in the longitudinal direction so as to divide the first bending portion into a plurality of first bending portions in the short direction.

  In short, when the first curved portion of the intermediate portion in the longitudinal direction of the bottom piece of the scaffold unit body is pressed against the outer peripheral surface of the support so as to be in close contact with the substantially semicircular arc of the outer peripheral surface of the support, By plastically deforming the curved shape in advance, it is not necessary to rotate the support belt while attaching a hand to the flexible winding belt at a high place. In addition, the first bent portion side ends of both bottom pieces in a state in which the opposite bottom pieces of both one side bent pieces and both other side bent pieces having a length substantially equal to the strut radius are opposed to each other. If the fastening member inserted through the insertion hole of the part is tightened, the second curved parts of the first curved part and both the one side folded pieces and the other side folded pieces are firmly adhered to each other. There is no need to engage the other end with the take-up operation tool so as to be able to take up. Thereby, the operation | work which fastens the scaffold unit with respect to a support | pillar from the circumferential direction can be performed easily and easily, and the improvement of the work efficiency at the time of fixing a scaffold unit to a support | pillar can be aimed at.

  In addition, the one side bent pieces face each other one side bent parts of the opposite bottom side one side ends and the other side bent parts of the other side bent pieces opposite to the inner side of the opposite bottom side one side ends. For the lip part that bends to the one side folding piece side with the opposite side one side ends spaced apart from each other on the outer side part of the other side bending piece while having the function as a scaffold by pressing in the state With a function as a support rail for a support that supports long materials with the legs locked, the scaffold unit can also be used as a support rail for support materials that support long materials such as pipes and ducts. This is very advantageous for implementation.

  In addition, by providing a notch recess that is continuous in the lateral direction with the first curved portion being plastically deformed at the opposite end of the first curved portion of the one side bent piece and the bottom piece, the scaffold unit used as a scaffold It is also possible to hook cans such as paint and work tools in the notch recess, which can contribute to the improvement of work efficiency.

  Furthermore, by providing the first bending portion with a slit extending in the longitudinal direction so as to divide the first bending portion into a plurality of first bending portions in the short direction, the plurality of first bending portions divided by the slits are provided. Individually deforming into a substantially semicircular arc shape and closely contacting along the outer peripheral surface of the support column, the contact degree of each first curved portion with respect to the outer peripheral surface of the support column is further enhanced. Thereby, the operation | work which fastens a scaffold unit with respect to a support | pillar can be performed easily and easily, and the improvement of the work efficiency at the time of attaching a scaffold unit with respect to a support | pillar can further be aimed at.

The perspective view of the scaffold unit main body in a state before plastically deforming the first curved portion when the scaffold unit according to the embodiment of the present invention is used as a scaffold, and the first curved portion are plastically deformed and fixed to the support column. It is a perspective view of the scaffold unit main body in the worn state. It is a front view which shows the state before cutting out the scaffold unit main body of FIG. 1 from a metal plate, and plastically deforming a 1st bending part. It is a rear view of the scaffold unit main body of FIG. It is a top view of the scaffold unit main body of FIG. It is a bottom view of the scaffold unit main body of FIG. It is a right view of the scaffold unit main body of FIG. It is a front view of the scaffold unit main body which shows the state which plastically deformed the 1st curved part of FIG. It is a top view of the scaffold unit main body of FIG. It is a bottom view of the scaffold unit main body of FIG. It is a right view of the scaffold unit main body of FIG. It is a left view of the scaffold unit main body of FIG. It is a perspective view which shows the state which plastically deforms the 1st curved part at the time of utilizing the scaffold unit of FIG. 1 as a support rail of a support, and it fixes with respect to a support | pillar. It is a perspective view of the scaffold unit main body which shows the state before carrying out the plastic deformation of the 1st curved part of FIG. 12, and an exploded perspective view of the scaffold unit main body which shows the state which plastically deforms the 1st curved part and it fixes to a support | pillar. . It is a front view of the support tool of FIG. It is a bottom view of the support tool of FIG. It is a right view of the support tool of FIG.

  Hereinafter, a scaffold unit according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view of a scaffold unit main body in a state before plastically deforming a first curved portion when the scaffold unit according to an embodiment of the present invention is used as a scaffold, and a column by plastically deforming the first curved portion. The perspective view of the scaffold unit main body in the state where it was fixed to is shown, respectively. In FIG. 1, a scaffold unit denoted by reference numeral 1 is fixed to a support S having a circular outer peripheral surface in a state of being surrounded from the circumferential direction, and is a cutout cut out from a single metal plate (not shown). The scaffold unit body 10 is formed by bending a piece into a substantially U-shaped cross section. In this case, if the metal plate remains in a plate-like state, it can be easily bent in accordance with the outer peripheral surface of the target object when pressed against the target object (post S) having a curved outer peripheral surface. A material that is plastically deformed into a shape is applied.

  2 is a front view showing a state before the scaffold unit main body 10 of FIG. 1 is cut out from the metal plate and plastically deforming the first curved portion, and FIG. 3 is a rear view of the scaffold unit main body 10 of FIG. . 4 is a plan view of the scaffold unit body 10 of FIG. 2, FIG. 5 is a bottom view of the scaffold unit body 10 of FIG. 2, and FIG. 6 is a right side view of the scaffold unit body 10 of FIG.

  As shown in FIGS. 2 to 6, the scaffold unit main body 10 includes a first curved portion 11 extending in the longitudinal direction (left and right in FIGS. 2 to 5) at the bottom of the scaffold unit main body 10, and the first curved portion. A bottom piece 12, 12 extending in the longitudinal direction on one side in the longitudinal direction and the other side in the longitudinal direction of the first bending portion 11 with the portion 11 sandwiched between the middle portions in the longitudinal direction is provided. The first bending portion 11 is a flat plate shape that is easily plastically deformed into a curved shape along the outer peripheral surface of the support column S when pressed against a support column S (object to be described later) having a circular outer peripheral surface. And is plastically deformed in advance into a curved shape of a semicircular arc so as to be in close contact with the substantially semicircular arc portion of the outer peripheral surface of the support column S when pressed against the outer peripheral surface of the support column S.

  Further, the scaffold unit main body 10 is a one-side bent piece 13 that is bent substantially at right angles from one side in the short direction of the bottom pieces 12, 12 (the lower side in FIGS. 2 to 4 and 6). , 13. Furthermore, the scaffold unit main body 10 is substantially perpendicular to the one side bent pieces 13 and 13 from the other lateral side of the bottom piece 12 (the upper side in FIGS. 2 to 4 and 6). The other side bent pieces 14, 14 are provided. In addition, the scaffold unit main body 10 includes second curved portions 15, 13 provided at the first curved portion 11 side ends (inner ends) of both one-side bent pieces 13, 13 and both other-side bent pieces 14, 14, respectively. 15 is provided.

  Each of the second bending portions 15 corresponds to a portion corresponding to approximately one-quarter arc, which is a half of the remaining approximately half arc portion of the outer peripheral surface of the support column S that remains when the first bending portion 11 is in close contact with the support column S. It is curved in a substantially quarter arc shape so as to be in close contact with each other along the outer peripheral surface of the column S. In addition, each second bending portion 15 has an arc that is slightly smaller than an arc portion of a substantially quarter of the remaining semicircular arc portions of the outer peripheral surface of the support column S that remains when the first bending unit 11 comes into close contact with the support column S. Set to minutes. In this case, the first bending portion 11 and the second bending portions 15 that are in close contact with the outer peripheral surface of the support column S are formed to have the same curvature as that of the outer peripheral surface of the support column S.

  7 is a front view of the scaffold unit main body 10 showing a state in which the first bending portion 11 of FIG. 2 is plastically deformed, and FIG. 8 is a plan view of the scaffold unit main body 10 of FIG. 9 is a bottom view of the scaffold unit body 10 of FIG. 7, FIG. 10 is a right side view of the scaffold unit body 10 of FIG. 7, and FIG. 11 is a left side view of the scaffold unit body 10 of FIG. . 12 is a perspective view showing a state in which the first bending portion 11 is plastically deformed and fixed to the column S when the scaffold unit 1 of FIG. 1 is used as a support rail of the support, and FIG. The perspective view of the scaffold unit main body 10 which shows the state before plastically deforming the 1st curved part 11 of this, and the exploded perspective view of the scaffold unit main body 10 which shows the state which plastically deforms the 1st curved part 11 and it fixes to the support | pillar S Each figure is shown.

  As shown in FIGS. 7 to 11, both the one-side bent pieces 13, 13 are set to have a length in the short-side direction that substantially matches the radius of the support column S. On the other hand, the other-side bent pieces 14 and 14 are set to have a length in the short direction substantially matching the radius of the support column S only at the inner side portions 16 and 16 located in the vicinity of each second bending portion 15. . And as shown in FIG.12 and FIG.13, as the fastening member, the 1st curved part 11 side edge part of both bottom piece 12 and 12 corresponding to the inner side part 16 of both other side bending pieces 14 and 14 is used. The substantially rectangular insertion holes 22 and 22 through which the bolt members 21 are inserted are respectively provided. The bolt member 21 has both one-side bent pieces 13 and 13 and both other-side bent pieces 14 so that the first bent portion 11 and the second bent portions 15 are firmly attached to the outer peripheral surface of the column S. 14 are tightened by a nut member 25 via a washer 23 and a spring washer 24 in a state of being opposed to each other.

  Both the one-side bent pieces 13, 13 are respectively provided with one-side bent portions 31 that bend so that the opposite ends of the opposite bottom piece pieces 12 face each other when the first bending portion 11 is plastically deformed. On the other hand, the inner side bent portions 16 of the other side bent pieces 14, 14 also bend the other side bent portions so that the opposite ends of the opposite bottom piece pieces 12 face each other when the first curved portion 11 is plastically deformed. 32 respectively. And the one side bending part 31 of both the one side bending pieces 13 and 13 and the other side bending part 32 of the inner side portions 16 of both the other side bending pieces 14 and 14 are opposite to each other at the opposite bottom piece 12 side end. Displacement when facing each other is surely prevented by the contact between the respective bent portions 31 and 32 and smoothly pressed, and has a function as a scaffold by both one-side bent pieces 13 and 13. Yes.

  On the other hand, the outer side portion 17 outside the inner side portion 16 of the other side bent pieces 14, 14 is set to a length in the short direction that is smaller than the radius of the support column S, and the opposite bottom piece 12 side end of each other Lip parts 33 and 33 are provided, which are bent at an obtuse angle of about 60 ° so as to face the one side bent part 31 side of both one side bent pieces 13 and 13 in a state where they are separated from each other. The leg portions 41, 41,... Of the support 4 for supporting the pipe H as a long material extending in the short direction of the other side bent pieces 14, 14 are locked to the both lip portions 33, 33. ing.

  14 is a front view of the support 4 in FIG. 12, FIG. 15 is a bottom view of the support 4 in FIG. 14, and FIG. 16 is a right side view of the support 4 in FIG. As shown in FIGS. 14 to 16, the support 4 is formed of a metal plate and includes a substantially rectangular base 42. Each leg portion 41 is bent and extended by approximately 90 ° from the front end (right end in FIG. 16) and the rear end (left end in FIG. 16) on both the left and right sides of the base body 42, and approximately 30 at each extension end. A curved piece 43 that curves outward at an inclination angle of ° is provided.

  The curved pieces 43 are elastically deformed inward together with the leg portions 41 when the support tool 4 is attached to the outer side portions 17 of the other side bent pieces 14, 14, and when the lip portions 33 are overcome. The lip portions 33 are locked. In addition, the front and rear leg portions 41, 41 of the leg portions 41 are connected to each other by a substantially semicircular arc-shaped arch 44, and the curved pieces 43 are respectively connected to the left and right arches 44, 44 with the pipe H wrapped around them. The pipe H is supported by being locked to each lip portion 33. At this time, the outer side portions 17 of the other side bent pieces 14, 14 have a function as a support rail of the support 4 that supports the pipe H.

  In addition, a screw hole portion 45 is provided in the center of the base body 42. The screw hole portion 45 is subjected to burring processing to secure the number of screw threads downward. A screw 46 is screwed into the screw hole 45, and the tip of the screw 46 to be screwed presses the pipe H held by the arches 44, 44, so that the base 42 is made relatively to the pipe H. By separating, the locking of the curved piece 43 of each leg portion 41 with respect to each lip portion 33 is made stronger, so that the support strength of the pipe H with respect to the scaffold unit body 10 is increased.

  Furthermore, the notch recessed part which notched in the substantially U shape seeing from the transversal direction in the state which the 1st bending part 11 side plastically deformed in the anti-first bending part 11 side end of both one side bending pieces 13 and 13 51 and 51 are provided continuously in the short direction. The one-side bent portion 31 corresponding to the notch recess 51 is also cut out.

  In addition, a slit 47 extending in the longitudinal direction is provided at the center in the short direction of the first bending portion 11 so as to divide the first bending portion 11 into two first bending portions 111 and 111 in the short direction. ing. The slit 47 is set to have a dimension in the short direction that divides the first bending portion 11 into approximately three equal parts in the short direction.

  Therefore, in the present embodiment, the scaffold unit main body 10 formed by bending the cross section into a substantially U-shaped cross section has a longitudinal middle portion of the bottom piece 12 so as to be in close contact with the substantially semicircular arc of the outer peripheral surface of the support column S. Since the first curved portion 11 is plastically deformed into a substantially semicircular curved shape in a state where the first curved portion 11 is pressed against the outer peripheral surface of the support column S, a hand is attached to the flexible winding belt at a high place. The operation | work turned to the support | pillar S becomes unnecessary. In addition, the inner side portions of the one-side bent portions 31, 31 of the both-side bent pieces 13, 13 and the other-side bent pieces 14, 14 having a length in the short direction substantially coincident with the radius of the support column S. The bolt member 21 inserted through the insertion hole 22 at the first curved portion 11 side end of the bottom piece 12, 12 with the other side bent portions 32, 32 facing each other through the washer 23 and the spring washer 24. If the nut member 25 is tightened, the first bending portion 11 and the second bending portions 15 of the one-side bent pieces 13 and 13 and the other-side bent pieces 14 and 14 are firmly adhered to each other. The operation | work which engages the other end of a rotation belt with a winding operation tool so that winding is possible becomes unnecessary. Thereby, the operation | work which fastens the scaffold unit 1 with respect to the support | pillar S from the circumferential direction can be performed easily and easily, and the improvement of the work efficiency at the time of fixing the scaffold unit 1 to the support | pillar S can be aimed at. .

  Moreover, the scaffold unit main body 10 is formed of a single cutout piece by bending a cutout piece cut out from a single metal plate into a substantially U-shaped cross section to form the scaffold unit main body 10. It is possible to improve productivity due to simplification and cost reduction of the structure of 1.

  In addition, the scaffold unit 1 includes the one side bent portions 31, 31 of the opposite side bottom piece 12 side ends of the one side bent pieces 13, 13 and the inner side portion 16 of the other side bent pieces 14, 14. Both one-side bent pieces 13 and 13 have a function as a scaffold by being brought into pressure contact by tightening with the bolt member 21 and the nut member 25 in a state where the other side bent portions 32 and 32 face each other. On the other hand, the obtuse angles of about 60 ° are provided so that the opposite ends 17 of the outer side portions 17 of the other side bent pieces 14 and 14 face each other toward the one side bent portion 31 in a state where they are separated from each other. The lip portions 33, 33 which are bent at both sides are provided on the other side bent pieces 14, 14. Thereby, when the scaffold unit 1 used as a scaffold is turned upside down, it can be used together as a support rail for the support 4 that supports the pipe H and the like extending in the short direction of the other-side folded pieces 14, 14. This is very advantageous.

  Further, a notch recess 51 that is continuous in the lateral direction in a state where the first bending portion 11 is plastically deformed is provided at the opposite end of the first bending portion 11 of both the one-side bent pieces 13 and 13 and the bottom piece 12. Therefore, it is possible to hook a handle such as a can material such as paint or a work tool on the notch recess 51 of the scaffold unit 1 used as a scaffold, which can contribute to an improvement in work efficiency.

  Furthermore, since the first curved portion 11 is provided with a slit 47 extending in the longitudinal direction so as to divide the first curved portion 11 into two first curved portions 111, 111 in the lateral direction, the first curved portion 11 is divided by the slit 47. The two first curved portions 111, 111 are individually curved and deformed into a substantially semicircular arc shape and are closely adhered along the outer peripheral surface of the support column S, and the first curved portions 111 are in close contact with the outer peripheral surface of the support column S. The degree will be further increased. Thereby, the operation | work which fastens the scaffold unit 1 with respect to the support | pillar S can be performed more simply and easily, and the improvement of the work efficiency at the time of fixing the scaffold unit 1 with respect to the support | pillar S can further be aimed at.

  In addition, this invention is not limited to the said embodiment, The other various modifications are included. For example, in the above-described embodiment, the scaffold unit body 10 is formed by bending a cut piece cut out from a single metal plate into a substantially U-shaped cross section, but the bottom portion is formed by a plastically deformable metal plate or resin plate. At least the first curved portion of the piece may be formed, and the remaining portion of the scaffold unit main body may be formed of a metal material or a resin material that cannot be plastically deformed and has rigidity and strength.

  In the embodiment, the slit 47 that divides the first curved portion 11 into the two first curved portions 111 and 111 in the lateral direction is provided, but the first curved portion 11 is in close contact with the substantially semicircular arc of the outer peripheral surface of the support column. As long as the material is easily plastically deformed, the slit is not necessarily required, and may be a single first curved portion that is not divided into a plurality of first curved portions. On the contrary, if the material is in close contact with the substantially semicircular arc portion of the outer peripheral surface of the column and hardly plastically deforms, the first curved portion is divided into three or more first curved portions in the short direction 2. Two or more slits may be provided.

  In the present embodiment, the pipe H is applied as the long material. However, any material may be used as long as it extends in the short direction of the other side bent pieces, and a duct, a cable, or the like may be used.

  In the present embodiment, each of the second bending portions 15 is curved in a substantially quarter arc shape so as to be in close contact with each of the substantially quarter arc portions of the outer peripheral surface of the support column S. It may be a second curved portion in which the tips of the tooth-like protrusions are arranged in a curved shape of approximately a quarter arc so as to be in close contact with each of approximately a quarter arc of the outer peripheral surface. .

  In this embodiment, the scaffold unit 1 used as a scaffold is inverted upside down and used as a support rail of the support 4. However, the scaffold unit used as a scaffold is positioned on the lower side as it is without being inverted upside down. You may use the lip | rip part of an other side bending piece as a support rail of a support tool.

  Furthermore, in the present embodiment, the scaffold unit 1 fixed to the strut S having a relatively small diameter has been described. However, the length in the longitudinal direction of the first bending portion and the length of the second bending portion according to the diameter of the strut are described. Needless to say, the diameter may be set, and the present invention can be applied to a column having any diameter.

DESCRIPTION OF SYMBOLS 1 Scaffolding unit 10 Scaffolding unit main body 11 1st bending part 111 1st bending part 12 Bottom piece 13 One side bending piece 14 Other side bending piece 15 Second bending part 17 Outer side part 21 Bolt member (fastening member)
22 Insertion hole 31 One side bent portion (one side end of one side bent piece)
32 Other side bent part (Anti-bottom part one side end of other side bent piece)
33 Lip part 4 Support tool 41 Leg part 47 Slit 51 Notch recessed part H Piping (long material)
S prop

In order to achieve the above object, in the present invention, a scaffold unit main body formed in a substantially U-shaped cross section on the premise of a scaffold unit fastened in a state of being surrounded from a circumferential direction with respect to a support having a circular outer peripheral surface. Is provided. Furthermore, the scaffold unit body, wherein as 塑 deformation substantially the semicircular curved shape in close contact to a substantially semicircular portion of the outer peripheral surface of the strut when pressed against the outer circumferential surface of the strut A bottom piece extending in the longitudinal direction on one side in the longitudinal direction and the other side in the longitudinal direction of the first curved portion with the first curved portion extending in the longitudinal direction sandwiching the bottom portion of the scaffold unit body in the longitudinal direction; One side bent piece that is bent substantially at right angles from one side in the short direction of both bottom pieces, and opposite one side bent piece from the other side in the short direction of both bottom pieces. The other side bent pieces bent at substantially right angles, the one side bent pieces, and the first bent portion side end portions of the other side bent pieces, respectively, are provided, and the first bent portions are made plastic. For each approximately one quarter of the remaining semicircular arcs of the outer peripheral surface of the support column remaining when deformed Comprising a second curved portion which is curved so as to be in close contact respectively along the outer peripheral surface of the strut, the. And the both bottom parts which set both said one side bending pieces and both said other side bending pieces to the transversal length substantially matched with the radius of the said support | pillar, and are located in the vicinity of each said 2nd bending part When the first curved portion side end of the piece is plastically deformed with the first curved portion, the one bottom end of the one side folded piece and the other side folded piece face each other. And an insertion hole for inserting a fastening member for tightening the first and second curved portions so as to firmly adhere to the outer peripheral surface of the support.

In short, when the first curved portion of the intermediate portion in the longitudinal direction of the bottom piece of the scaffold unit body is pressed against the outer peripheral surface of the support so as to be in close contact with the substantially semicircular arc of the outer peripheral surface of the support, by keep 塑 deformation in a curved shape, the work to turn the post while your hand at height in the winding belt having flexibility is not required. In addition, the first bent portion side ends of both bottom pieces in a state in which the opposite bottom pieces of both one side bent pieces and both other side bent pieces having a length substantially equal to the strut radius are opposed to each other. If the fastening member inserted through the insertion hole of the part is tightened, the second curved parts of the first curved part and both the one side folded pieces and the other side folded pieces are firmly adhered to each other. There is no need to engage the other end with the take-up operation tool so as to be able to take up. Thereby, the operation | work which fastens the scaffold unit with respect to a support | pillar from the circumferential direction can be performed easily and easily, and the improvement of the work efficiency at the time of fixing a scaffold unit to a support | pillar can be aimed at.

As shown in FIGS. 2 to 6, the scaffold unit main body 10 includes a first curved portion 11 extending in the longitudinal direction (left and right in FIGS. 2 to 5) at the bottom of the scaffold unit main body 10, and the first curved portion. A bottom piece 12, 12 extending in the longitudinal direction on one side in the longitudinal direction and the other side in the longitudinal direction of the first bending portion 11 with the portion 11 sandwiched between the middle portions in the longitudinal direction is provided. The first bending portion 11 is a flat plate shape that is easily plastically deformed into a curved shape along the outer peripheral surface of the support column S when pressed against a support column S (object to be described later) having a circular outer peripheral surface. are formed on, are 塑 deformation in semicircular curved shape so as to be in close contact to a substantially semicircular portion of the outer peripheral surface of the strut S when pressed against the outer circumferential surface of the strut S.

Claims (4)

It is a scaffold unit that is fixed in a state of being surrounded from a circumferential direction with respect to a support column having a circular outer peripheral surface,
It has a scaffold unit body formed in a substantially U-shaped cross section,
The scaffold unit body is
The bottom portion of the scaffold unit body is longitudinally deformed so as to be preliminarily plastically deformed into a substantially semicircular arc curved shape in close contact with the substantially semicircular arc portion of the outer peripheral surface of the support column when pressed against the outer peripheral surface of the support column. A bottom piece extending in the longitudinal direction on one side in the longitudinal direction and the other side in the longitudinal direction of the first curved portion with the first curved portion extending in the middle in the longitudinal direction,
One side bent piece that is bent at a substantially right angle from one side in the short direction of the bottom pieces,
The other side bent pieces that are bent at substantially right angles so as to face both the one side bent pieces from the other side in the short direction of the both bottom pieces,
Remaining substantially semicircular arcs on the outer peripheral surface of the column that are provided at the first curved portion side end portions of the both one side bent pieces and the other side bent pieces, respectively, and remain when the first curved portion is plastically deformed. A second bending portion that is curved so as to be in close contact with the outer peripheral surface of the column with respect to approximately one-quarter arc portion of the minute,
With
The one side folded piece and the other side folded piece are set to a length in the short direction substantially matching the radius of the column,
The first bent portion side end portion of the bottom piece located near each of the second bent portions has both the one side bent piece and the both other side folded pieces when the first bent portion is plastically deformed. There is provided an insertion hole through which a fastening member for tightening the first and second curved portions to tightly adhere to the outer peripheral surface of the support column with the opposite ends of the opposite bottom portions of the curved pieces facing each other. Scaffolding unit characterized by Each of the one side bent pieces has a one side bent portion formed by bending the opposite sides of the first bottom portion so as to face each other when the first curved portion is plastically deformed. While having a function as a scaffold by pressing the curved parts facing each other,
Both the other side bent pieces are provided with other side bent portions formed on the inner side of the first bent portion so that the opposite ends of the first bottom portions are bent so as to face each other. A lip portion that bends toward the one side bent piece side with the opposite one side ends thereof being separated from each other at the outer side portion thereof, and the both sides in a state where the leg portions are locked to the both lip portions. The scaffold unit according to claim 1, which has a function as a support rail of a support that supports a long material extending in a short direction of the other side bent piece.   The notch recessed part which continues in a transversal direction in the state which carried out the plastic deformation of the said 1st bending part is provided in the anti-first bending part side edge of both said one side bending piece and bottom piece. Item 3. The scaffold unit according to item 2.   The said 1st bending part is provided with the slit extended in a longitudinal direction so that the said 1st bending part may be divided | segmented into a some 1st bending part in a transversal direction. The stated scaffold unit.

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