JP2018087450A - Support device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support device which can prevent separating from a flange of such as a floor or a beam, even if the load of an inclined direction acts on the support body.MEANS FOR SOLVING THE PROBLEM: The support device comprises a support body 1, a clamp member 2 which is fitted at the lower end of the support body 1, a fitting member 3 for a handrail or a rope which is fitted at the top end or the middle part of the support body 1, the support device supporting the support body 1 on the floor or the flange H with the clamp member 2, in which the clamp member 2 is constituted from a U-shaped metal fixture 3 in side view which comprises an upper edge 3A and a lower edge 3B, a fastening member 4 which is fitted at the upper edge 3A to be movable vertically, a disk 6 which is fitted at the lower end of the fastening member 4 to face the lower edge 3, and a spring 7 which is fitted under the disk 6.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a column apparatus, and more particularly to a column apparatus suitable for use as a vertical column for a handrail in a building site of a building, a construction site such as a bridge.

  Generally, a plurality of vertical pillars are erected on the flange of a beam made of H-steel at a construction site of a building such as a building or a construction site of a bridge or the like, and handrails and ropes are attached to these vertical pillars along the lateral direction. A handrail device in which a guide having a lifeline attached to this handrail or rope is slidably inserted is used.

  This handrail device is intended to ensure safety when an operator walks on a flange of H steel or in a passage close to H steel.

  The column device used as the vertical column for the handrail includes a column main body, a clamping member provided integrally with the lower end of the column main body, and a handrail holding member provided in the upper end or middle of the column main body. In general, the column main body is erected on the H-steel flange via a horizontal rail, and a horizontal handrail is inserted into the handrail holding member.

  As the clamping member in the above-described handrail device, for example, the type shown in Patent Document 1 is used.

  This clamping member is composed of a side U-shaped fixing bracket and a bolt inserted into the fixing bracket so as to be movable up and down. The fixing bracket is inserted into the end of the flange of the H steel, and then the lower piece of the fixing bracket and The flange is clamped with bolts, and the column main body is erected on the flange.

  However, since this clamping member presses the upper surface of the flange with the bolt, there is a problem that the flange may be damaged at the end of the bolt when the bolt is screwed.

  For this reason, for example, as shown in Patent Document 2, a clamping member in which a non-slip member such as rubber is embedded at the lower end of a bolt, and a flange such as a floor or a beam is clamped between the dish and a lower piece of a fixing bracket Is also used.

Japanese Patent Laid-Open No. 6-47104 (Summary, see FIG. 2) Japanese Patent Laying-Open No. 2004-332412 (see paragraphs 0034, 0035 and FIG. 3)

  The strut device disclosed in Patent Document 2 is not structurally defective, but it is desired to improve the following problems.

  As described above, in the conventional strut device, the strut body is erected on the flange via the clamping member, and usually a handrail is attached to the strut body, but a guide with a lifeline attached to the handrail, or a strut A lifeline may be attached directly to the main body to make it safe for workers to walk.

  However, in the case of such a specification, when the worker steps off the foot from the passage and falls for some reason, the weight of the worker acts on the support body via the lifeline, and the support body is supported by the holding member at the lower end. Tilt.

  At this time, if the inclination direction of the column body is on the flange side, the column body hardly falls off the flange, but if the inclination direction is outside the flange, the clamping member is detached from the flange, so that the column body is removed from the beam. There is a risk of falling off and pedestrians falling to the ground.

  That is, when the support body is pulled by the weight of the pedestrian and tilted to the outside of the flange, the holding member is also pulled in the same tilt direction.

  As a result, the U-shaped fixing bracket and pan were deformed, especially when the fixing bracket was deformed, the upper side slanted and floated, a gap was generated between the pan and the flange, and the clamping member was pulled in the tilting direction. There is a possibility that it will come off from the flange and the entire support device will fall, and as a result, the operator may fall on the ground, and the improvement is desired.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a column apparatus that can prevent the column main body from coming off from a flange such as a floor or a beam even if a load in an inclined direction acts on the column main body.

  In order to achieve the above object, the means of the present invention includes a column main body, a clamping member attached to the lower end of the column main body, an attachment member for a handrail or rope provided on the upper end or trunk of the column main body, In the column apparatus that stands the column main body on the floor or beam flange via the clamping member, the clamping member is a U-shaped fixing bracket having an upper piece and a lower side, and the upper side vertically The fastening member is configured to be movably mounted, a dish provided at the lower end of the fastening member so as to face the lower side, and a spring provided at a lower part of the dish.

  According to the invention of each claim, since the spring is attached to the lower part of the dish, the column main body and the clamping member are forcibly pulled in the inclined direction by an external load, and as a result, the fixing bracket and the dish are deformed and the dish is deformed. Even if there is a gap between the flange and the flange, the spring is stretched by the spring force and is always in contact with the flange, so that the holding member can be prevented from coming off from the flange, and the entire column device falls off the flange. Can be prevented.

  For this reason, it is possible to reliably prevent the workers at the construction and construction sites supported by the column device via the lifeline from falling from the floor or beams.

It is a perspective view of the handrail device using the support | pillar apparatus which concerns on one embodiment of this invention. It is a side view of the support | pillar apparatus which concerns on one embodiment of this invention. It is a front view of the handrail device which attached the rope for lifeline attachment to the support | pillar apparatus which concerns on one embodiment of this invention. It is a side view of the support | pillar apparatus which concerns on other embodiment. It is an expansion vertical side view of the clamping member in the support | pillar apparatus which concerns on one embodiment of this invention. It is a perspective view of the clamping member shown in FIG. It is a disassembled perspective view of the clamping member similarly shown in FIG. A) It is a top view of the fixing metal fitting and outer cylinder in the clamping member which concerns on one embodiment of this invention. B) It is a side view similarly. C) It is an AA line crossing top view. A) It is a top view of the inner cylinder and dish in the clamping member which concerns on one embodiment of this invention. B) It is a side view of an inner cylinder, a tray, and a spring similarly. C) It is the bottom view of a plate and a spring similarly. It is a side view of the volt | bolt in the clamping member which concerns on one embodiment of this invention. A) It is a side view of the clamping member which concerns on other embodiment of this invention. B) It is the bottom view of a plate and a leaf | plate spring similarly. It is a side view of the support | pillar apparatus using the clamping member which concerns on other embodiment of this invention. A) It is a side view of the clamping member which concerns on other embodiment of this invention.

  B) It is the bottom view of a plate and a coil spring similarly.

  An embodiment of the present invention will be described below with reference to the drawings.

  A strut device P according to an embodiment of the present invention is shown in FIGS. 2, 5, 11, and 13.

  The basic form of the column apparatus P according to each of these embodiments includes a column main body 1, a clamping member 2 attached to the lower end of the column main body 1, a handrail provided on the upper end of the column main body 1, the trunk, or both, It is composed of a handrail holding member X for rope, and the column main body 1 is erected on the floor HA or the flange HA of the beam W via the pinching member 2.

  The clamping member 2 is a U-shaped fixing bracket 3 having an upper piece 3A and a lower side 3B, a clamping member 4 attached to the upper side 3A so as to be movable up and down, and a lower side at the lower end of the clamping member 4 3, a plate 6 provided opposite to the plate 3, and a spring 7 including a plate spring 7 </ b> A provided below the plate 6.

  1 and 3 show a handrail device T using a support device P according to an embodiment of the present invention.

  The handrail device T of FIG. 1 shows an example in which the handrail V is attached to the support device P.

  The other handrail device T in FIG. 3 is configured such that a rope N that also serves as a handrail is attached to a bracket M made of a leaf spring and a lifeline is attached to the bracket M.

  In this case, a lifeline may be attached to the rope N via a guide that is slidable.

  As described above, the handrail device T is provided along the side of a floor, a beam, a passage or the like at a work site of a building such as a building or a construction part such as a bridge. It is intended to ensure safety by preventing falling or walking to the ground when walking.

  The handrail device T shown in FIG. 1 and FIG. 3 is attached to a flange HA of a beam made of H steel W, which is a member to be attached, provided in the vicinity of a passage at a building department, building construction, or construction site.

  The above H-steel W is a part of the structure that constitutes the framework of buildings and structures, but the plane itself may also be used as a passage for workers to walk, or provided close to the passage. There may be.

  Although FIG. 1 shows a state in which the handrail device T is disposed corresponding to a straight path and a curved corner path, it may be provided only in the middle of the straight path.

  The basic structure of the handrail device T in FIG. 1 includes at least two or more strut devices P that are attached to a mounting member made of H-steel W provided at a construction or construction site, and a strut body 1 of each strut device P. Handrail holding members X and X provided on the upper end and the body, respectively, a plurality of independent handrails V and V inserted into the respective handrail holding members X and X so as to be slidable in the lateral direction, and ends of the handrails V and V A plurality of handrail coupling members R, R that are slidably inserted between the sections and removably connect the ends of the adjacent handrails X, X, and slidably attached to the outer periphery of each handrail X, X A lifeline attaching guide Z that passes through the outer peripheries of the handrail holding member X and the handrail connecting member R is provided.

  The handrail holding member X and the handrail connecting member R each have a locking member made of a wedge K with respect to the handrail V, and further, a guide Z for attaching a lifeline is each outer periphery of the handrail holding member X and the handrail connecting member R. There are rollers 22a and 22b that swing while abutting against the roller.

  As shown in FIG. 1, the handrail device T according to a specific embodiment includes a pair of left and right support columns P standing on the outer ends of the left and right H steels W and W provided at the corners of the construction and construction sites, P and a pair of intermediate strut devices P, P standing at the inner ends of the H steels W, W, and handrail holding members X, X provided at the upper ends of the left and right strut bodies 1, 1 respectively. A pair of left and right handrails V, V, and a handrail holding member X, X provided at the upper end of the intermediate column main body 1, 1, and an intermediate between the left and right handrails V, V A curved handrail V1.

  Further, a pair of left and right handrail connecting members R and R are slidably inserted into one end portion of the left and right handrails V and V and both end portions of the intermediate handrail V1, respectively.

  According to the handrail device T shown in FIG. 1, the left and right column main bodies 1, 1 and the two intermediate column main bodies 1, 1 at the corner portion are erected on the flange HA of the H steel W via the clamping members 3. Keep it.

  Next, two left and right handrails V and V are horizontally inserted into the upper ends of the left and right vertical struts 1 and 1 and the intermediate body portion via the upper and lower handrail holding members X and X, respectively.

  Further, the middle two handrails V, V are also horizontally inserted into the middle column main bodies 1, 1 via the upper and lower handrail holding members X, X.

  Next, an intermediate handrail V1 is connected to the left and right handrails V and V via the left and right handrail connecting members X and Xb.

  At this time, one handrail, for example, handrail connecting members X and X are inserted on both sides of the intermediate handrail V1, and in this state, the left and right handrails V and V are slid to approach the end of the intermediate handrail V1. Then, the left and right handrails V, V and the intermediate handrail V1 are connected by inserting the handrail connecting members R, R into the ends of the left and right handrails V, V, respectively.

  The lifeline mounting guide R, which is slidably inserted into the handrails V and V1, moves along the outer periphery of the handrails V and V1 as the worker walks. It is designed to be supported by V1.

  Although FIG. 1 shows a state in which four strut devices P and three handrails V and V1 are provided, three or more or two may be provided according to the length of the passage. It can be used.

  Next, the strut device P according to an example of each embodiment will be described in detail.

  As described above, the strut device P includes the strut body 1 and the clamping member 3. However, the strut body 11 may have a curved lower portion as shown in the embodiment of FIG. You may shape | mold straight as shown in the form.

  The reason why the lower part of the column body 1 is curved as shown in FIG. 2 is that the column body 1 is projected outward from the flange HA to widen the area on the flange HA, and the worker can easily walk. It facilitates the conveyance of tools and materials.

  Next, the column device T according to each embodiment will be described.

  2-10 has shown one Embodiment of the support | pillar apparatus T of this invention.

  As described above, the column apparatus T includes the column main body 1 having a bent lower portion and the clamping member 2 attached to the lower end of the column main body 1, and a handrail for attaching the handrail to the upper end and the trunk of the column main body 1. A holding member X is provided, and the column main body 1 is erected on a flange HA of a beam made of a floor or H-steel W through the clamping member 2.

  The clamping member 2 includes a U-shaped fixing bracket 3 having an upper piece 3A and a lower side 3B, a clamping member 4 attached to the upper side 3A so as to be movable up and down, and a lower side 3 at the lower end of the clamping member 4. The plate 6 is configured to be opposed to the plate 6 and the spring 7 is a plate spring 7 </ b> A provided at the bottom of the plate 6.

  As shown in FIGS. 5 to 10, the fastening member 4 includes a hollow outer cylinder 8 that passes through the upper side 3 </ b> A and stands up from the upper side 3 </ b> A, and an inner cylinder 10 that is slidably inserted into the outer cylinder 8. A bolt 9 rotatably inserted into a lid 8A of the outer cylinder 8 and a nut 10A provided at the upper end of the inner cylinder 10, and a locking nut 11B screwed into the bolt 9; A dish 6 is integrally attached by welding or the like.

  The bolt 9 has a screw body and a head portion 11 </ b> A, and the head portion 11 </ b> A is rotatably in contact with the lid 8 </ b> A of the outer cylinder 8.

  When the bolt 9 is screwed, the locking nut 11B is rotatably contacted with the lower surface of the lid 8A, and the head 9A and the locking nut 11B are regulated so that the bolt 9 does not move up and down. ing.

  The pan 6 is composed of a horizontal main body 6A and an annular support frame 6B that rises downward from the outer periphery of the main body 6A.

  The spring 7 is composed of a plate spring 7A formed into a corrugated shape, and the base end of the plate spring 7A is fixed to the end of the main body 6A of the plate 6 by pins 12 or welding.

  A plurality of reinforcing ribs 3N are provided on the outer periphery of the upper piece 3A and the lower side 3B of the fixing bracket 3, and a plurality of ribs 3M are also provided on the upper surface of the lower side 3B.

  Further, a hole 5A that faces the column main body 1 is formed on the upper side 3A, and an opening 5B that faces the outer cylinder 8 is formed on the lower side 3B.

  The opening 5B is formed to insert the inner cylinder 10 into the outer cylinder 8 from below.

  The assembling process of the clamping member 2 is achieved by the process shown in FIG.

  That is, the outer cylinder 8 is fixed to the upper side 3A of the fixing bracket 3 by welding or the like in advance.

  In this state, the inner cylinder 10 is inserted upward from the opening 5B of the lower side 3B, and the inner cylinder 10 is inserted into the outer cylinder 8.

  In this state, the pan 6 and the further attached spring 7 are horizontally inserted from the outside of the fixing bracket 3, the upper surface of the pan 6 is joined to the lower end of the inner cylinder 10 by welding, and the pan 6 and the spring 7 are connected to the lower side 3B. It is made to oppose the upper surface of.

  Next, the locking nut 11B is horizontally inserted from the opening 8B formed on the upper side portion of the outer cylinder 8, and the bolt 9 is inserted through the hole 8C formed in the lid 8A of the outer cylinder 8 in this state. Further, the bolt 9 is inserted into the locking nut 11B, and the nut 11B is rotated and held by the bolt 9.

  Furthermore, the bolt 9 is also inserted into the upper end nut 10A of the inner cylinder 10, and the clamping member 2 is assembled in the state shown in FIG.

  When the column device P is erected on the flange HA of the H steel W, the fixture 2 is inserted into the flange HA from the side as shown in FIG.

  In this state, when the bolt 9 is rotated through its head portion 11A, the nut 10A screwed to the bolt 9 is lowered, whereby the inner cylinder 10, the plate 6 and the spring 7 are lowered, and the plate 6 and the spring are lowered. When the spring 7 comes into contact with the flange HA, the spring 7 is compressed, and the flange HA is firmly sandwiched between the upper plate 6 and the spring 7 and the lower lower side 3B, and the fixing bracket 2 cannot be removed from the flange HA. The column body 1 is held upright on the flange HA.

  At this time, the loosening prevention nut 11b is tightened to prevent the bolt 9 from loosening, thereby preventing the bolt 9 and the pan 6 from moving upward.

  On the contrary, when removing the column device P from the flange HA, the loosening prevention nut 11B is loosened, then the rotation operation of the bolt 9 is reversed to the above, the inner cylinder 10 is raised, and the plate 6 and the spring 7 are connected to the flange HA. It is enough to release the pinching force away from.

    The above-described operation is an operation in which the inner cylinder 10 is telescopically expanded and contracted vertically with respect to the outer cylinder 8 and the plate 6 and the spring 7 are moved up and down, but when the fixing bracket 2 is inserted into the flange HA, the operation is started. The plate 6 and the spring 7 may be brought into contact with the upper surface of the flange HA, and the lower side 3B may be pulled up while rotating the bolt 9 in this state.

  In the handrail device T using the column device P according to the above-described embodiment, for example, when the worker is about to fall off the foot while stepping on the flange HA or the like while walking or working, The lifeline wound around is pulled, and the support device P tilts in the direction of arrow F in FIGS.

  At this time, the upper side 3A of the fixing bracket 2 rotates in the same inclination direction with the lower piece 3B as a fulcrum, but conversely the spring 7 is swollen by the return force of the upper side 3A that is lifted, and the lower part of the upper side of the flange HA. Since the flange HA is sandwiched between the spring 7 and the lower side 3B since it is in contact with the upper surface, it is possible to prevent the fixture 2 from being detached from the flange HA.

  As a result, the strut device P is also prevented from falling off the flange HA, the operator is prevented from falling to the ground, and walking and work safety can be achieved.

  Next, another embodiment of FIGS. 11 to 13 will be described.

  The embodiment shown in FIGS. 1 to 10 has a telescopic structure in which the fastening member 4 includes an outer cylinder 8, an inner cylinder 10, and a bolt 9, and a spring 7 including a plate spring 7A at the lower portion of the plate 6. However, the fastening member 4 according to another embodiment of FIGS. 11 to 13 includes a bolt 15, a plate 6 directly attached to the lower part of the bolt 15, and a spring 7.

  The structure of the other support | pillar apparatus P is the same as what is shown in above-described FIGS.

The fastening member 4 according to another embodiment of FIGS. 11 and 12 includes a nut 14 fixed to the upper side 3A, a bolt 15 that passes through the upper side 3A while being screwed to the nut 14 and is movable vertically, and a bolt And the plate 6 is attached to the lower end of the bolt 15 via a nut 16. Further, the bottom of the plate 6 has a cross shape when viewed from the bottom. A spring 7 comprising a C-shaped plate spring 7B as viewed from the side is provided, and this plate spring 7B is sandwiched between a nut 16 and a plate 6 screwed into the lower end of the bolt 15.

  According to the column device 9 using the tightening member 4, if the bolt 15 is rotated as shown in FIG. 12, the bolt 15, the plate 6 and the plate spring 7B are lowered, and the plate 6 and the plate spring 7B are fixed. By holding the flange HA between the lower side 3 b of the metal fitting 3, the column main body stands on the flange HA.

  In this state, for example, when the worker is walking or is stepping off from the flange HA or the like during the work, the lifeline wrapped around the worker is pulled and the support device P is moved to the arrow shown in FIG. At the same time, the upper side 3A of the fixing bracket 2 rotates with the lower piece 3B as a fulcrum and floats up. At this time, the outer peripheral side of the gap plate spring 7B where the upper side 3A is lifted up is restored by the restoring force shown in FIG. Since the leaf spring 7B and the lower side 3B sandwich the flange HA, the fixing bracket 3 is prevented from being detached from the flange HA.

  As a result, the worker can be prevented from falling to the ground.

  The fastening member 4 according to the embodiment shown in FIG. 13 has the same basic structure as that of the embodiment shown in FIG. 11 except that a coil spring 7 C is used as the spring 7.

  That is, the tightening member 4 shown in FIG. 13 includes a nut 14 fixed to the upper side 3A, a bolt 15 that passes through the upper side 3A while being screwed to the nut 14, and a looseness stopper screwed to the bolt 15. The tray 6 is attached to the lower end of the bolt 15, and a spring 7 including a coil spring 7C is provided below the tray 6.

  The coil spring 7C is preferably fixed to the lower surface of the plate 6 via an attachment member.

  Also in the column device 9 using the tightening member 4, as in the case shown in FIG. 12, if the bolt 15 is rotated, the bolt 15, the tray 6 and the coil spring 7C are lowered, and the tray 6 and the coil spring are lowered. By sandwiching the flange HA between 7C and the lower side 3b of the fixing bracket 3, the column main body stands on the flange HA.

  In this state, for example, while the worker is walking or working, the lifeline that is wound around the worker is pulled when the worker tries to fall off the flange HA or the like and the strut device P is moved to the arrow F in FIG. When tilted in the direction, the upper side 3A of the fixing bracket 2 rotates with the lower piece 3B as a fulcrum and floats up. However, at this time, the coil spring 7C is stretched and stretched by the self-returning force. Since the flange HA is sandwiched between the coil spring 7C and the lower side 3B, the fixing fitting 3 is prevented from being detached from the flange HA.

  According to the strut device according to each of the above embodiments, the spring 7 is attached to the lower part of the dish 6, so that the strut body 6 and the clamping member 4 are forcibly pulled in the inclined direction by an external load, and as a result Even if the fixing bracket 2 or the dish 6 is deformed and a gap is generated between the dish 6 and the flange HA, the spring 7 is extended by the spring force and is always in contact with the flange HA so that the holding member 4 is stretched. It can prevent coming off from the flange HA, and can prevent that the whole support | pillar apparatus P falls off from the flange HA.

  For this reason, it is possible to reliably prevent a worker at the construction or construction site supported by the support device 2 via the lifeline from dropping from the floor or the beam.

DESCRIPTION OF SYMBOLS 1 Prop body 2 Clamping member 3 Fixing bracket 3A Upper side 3B Lower side 4 Tightening member 5
6 Plate 7 spring 7A, 7B Leaf spring 7C Coil spring 8 Outer cylinder 8A Lid 9 Bolt 10 Inner cylinder 10A Nut 11B Nut 13 Loosening prevention nut 15 Bolt

Claims (5)

A support body (1), a clamping member (2) attached to the lower end of the support body (1), and a handrail or rope handrail holding member (X) provided on the upper end or trunk of the support body (1) In a strut device that stands upright on the strut body (1) on the floor or beam flange (H) via the clamping member (2),
A side-shaped U-shaped fixing bracket (3) having an upper piece (3A) and a lower side (3B), and a clamping member (4) attached to the upper side (3A) so as to be movable up and down. ), A dish (6) provided at the lower end of the tightening member (4) so as to face the lower side (3), and a spring (7) provided at the lower part of the dish (6). Characteristic strut device.   A hollow outer cylinder (8) that rises from the upper side (3A) while the fastening member (4) penetrates the upper side (3A), and an inner part that is slidably inserted into the outer cylinder (8). A cylinder (10), a bolt (9) rotatably inserted in a lid (8A) of the outer cylinder (8) and a nut (10A) provided in the inner cylinder (10); and the bolt (9) The strut device according to claim 1, comprising a screwed nut (11B) and a plate (6) attached to the lower end of the inner cylinder (10).   A nut (14) in which the tightening member (4) is fixed to the upper side (3A); a bolt (15) that penetrates the upper side (3A) while being screwed into the nut (14); The strut device according to claim 1, further comprising a locking nut (13) screwed into the bolt (15), wherein the plate (6) is attached to a lower end of the bolt (15).   The strut device according to any one of claims 1 to 3, wherein the spring (7) comprises a leaf spring (7A) or (7B).   The strut device according to any one of claims 1 to 3, wherein the spring (7) is a coil spring (7C).

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