JP5384185B2 - Scaffolding board - Google Patents

Description

  In order to prevent the operator from stepping down the operator's feet from the treads constituting the temporary scaffolding or dropping various work tools, building materials, etc., both ends in the width direction of the treads, The present invention relates to a scaffolding skirting board that is vertically disposed between adjacent struts.

  Temporary scaffolds used at construction sites and the like are constructed between a large number of pairs of columns and a pair of columns that are erected at predetermined intervals along the direction of movement of the worker. Assembling various members with different functions, such as a large number of horizontal members, vertical members installed between adjacent struts along the movement direction of the operator, and treads supported between the adjacent horizontal members Will be temporarily set up at construction sites.

  Scaffolding baseboards are erected members that are erected between adjacent struts to prevent workers from stepping on their feet or dropping various work tools, building materials, etc. It is the structure by which a pair of locking metal fittings engaged / disengaged with respect to the said horizontal member were each attached to the both ends of the longitudinal direction of a wooden main body.

  For example, the skirting board described in Patent Document 1 has a structure in which one of a pair of locking fittings can be rotated and the other is a fixed structure, and the movable range of the locking fitting on the movable side is increased by turning a bolt. After expanding and locking to the tread board support material, the above bolt is turned again in the reverse direction to restrict the movable range (narrow) so that the locking bracket does not come off from the horizontal member. Since the movable range of the locking metal fitting is adjusted by moving the bolt forward and backward, it is very troublesome to attach and detach the horizontal bracket.

  Temporary scaffolding is a major factor that determines the value of use because it is possible to quickly construct and dismantle a large number of construction members. become.

JP-A-2005-97987

  An object of the present invention is to provide a baseboard that can be easily attached to and detached from a horizontal member, which is a erection member constituting a scaffold, and can be quickly performed.

In order to solve the above-mentioned problem, the invention of claim 1 is directed to a plurality of struts in a one-to-one pair that are erected at predetermined intervals along the movement direction of the worker, and between the pair of struts. Each erection member having different functions, such as a large number of horizontal members to be erected, vertical members erected between adjacent columns along the moving direction of the operator, and treads supported between the adjacent horizontal members In order to prevent a worker's foot from being dropped from the tread board or various work tools, building materials, etc. from falling, the width direction of the tread board is used. Scaffolding baseboards arranged perpendicularly to both ends of the baseboard, the baseboard body having a rectangular shape with a large slenderness ratio, and attached to both ends in the longitudinal direction of the baseboard body, to the horizontal member comprises a pair of locking brackets to be engaged detachably engaged, the respective anchor fitting has a width And a pair of fitting pieces disposed on both sides of the body, while at least one of, which is biased by biasing means in a direction to be locked to the horizontal member of the pair of locking brackets, the baseboard A pair of metal fittings that are supported rotatably with respect to the main body and that constitute a metal fitting that is rotatably supported with respect to the baseboard main body rotate together, at least one of which is It protrudes upward from the upper end of the skirting board main body, and serves as an operation part for rotating the locking metal fitting .

When both of the locking brackets on both ends of the skirting board have a rotating structure, the biasing force of the biasing means is resisted so that one locking portion of the pair of locking brackets is separated from the horizontal member. With the one locking bracket rotated around the fulcrum, the one locking bracket is inserted into the gap between the longitudinal edge of the tread and the horizontal member, and then the urging force When the force resisting is released, the latching metal is rotated by the urging force so that the latching part at the lower end is close to the horizontal member, and the latching part of the latching metal and the horizontal member are Is locked. Next, with respect to the other locking bracket, when the locking portion of the locking bracket is locked to another horizontal member by exactly the same operation, it is attached to both longitudinal ends of the baseboard body. In addition, each locking bracket is locked to the respective horizontal member, and the tread is disposed between the struts adjacent to each other at the end in the width direction of the tread and in the movement direction of the operator. On the other hand, in order to remove the skirting board, each operation may be performed in the reverse order to that at the time of wearing. As described above, since the locking metal fittings attached to both ends in the longitudinal direction of the skirting board main body are configured to be rotated in a state of being biased in the locking direction by the biasing means, the locking metal fittings are By rotating, it is possible to lock and release the locking brackets at both ends in the longitudinal direction of the baseboard body with respect to the horizontal member without tilting the baseboard body greatly. Rotate the locking bracket against the biasing force of the biasing means and insert the locking portion at the lower end of the locking bracket into the gap, or after escaping from the gap, By only releasing the resisting force, the locking portion of the locking bracket can be locked to the horizontal member, or the locking can be released, so that the baseboard can be attached and detached easily and instantaneously. In addition, when attaching or detaching the skirting board to or from the horizontal member, the operation part protruding upward beyond the skirting board main body is lightly placed on one of the pair of metal fittings constituting the locking metal fitting rotatably supported by the skirting board main body. Since it only needs to be grasped and rotated in either direction, in other words, only within the range that the operator can see during the attachment / detachment work, it can be used between the lower part of the locking bracket and the horizontal member. Therefore, it is not necessary to turn the hand to the narrow part of the skirt, and the skirting board can be easily attached and detached in this respect.

  In addition, when only one of the pair of locking brackets is rotatable, the base plate body is inclined so that the side of the locking bracket of the fixed structure is lowered, and the locking bracket of the fixed structure After the locking portion is inserted into the gap and locked to the horizontal member, the other metal fitting of the rotating structure may be locked to the horizontal member by the above operation. On the other hand, when removing the skirting board, it is only necessary to release the locking of the horizontal member from the side of the locking metal fitting of the rotating structure in the reverse order of the mounting.

  Since the urging force of the urging means acts in a direction to maintain the locking in a state where the pair of locking metal members are locked to the horizontal members, the engagement of the locking metal members with respect to the horizontal member. The locking is ensured, and the locking is not released during use, thereby improving the integrity.

Moreover, a pair of latching metal fittings attached to both ends in the longitudinal direction of the skirting board main body is composed of a pair of metal fitting pieces arranged on both sides of the skirting board main body, and is supported rotatably with respect to the skirting board main body. At least one of the pair of metal fittings constituting the locking metal fitting protrudes upward from the upper end of the skirting board main body and serves as an operation portion for rotating the locking metal fitting. Since the piece, i.e., the locking bracket can be rotated, the rotation operation of the locking bracket is easy.

According to a second aspect of the present invention, in the first aspect of the present invention, the operation portion is provided on a metal piece disposed inside the baseboard body, and the metal part is tiltable outward of the baseboard body. It is characterized by being hinged to the other part of the piece.

According to the second aspect of the present invention, when an operation portion provided on one metal piece so as to protrude upward from the upper end of the skirting board body is an obstacle, it can be tilted outward. Can be avoided.

Since the present invention has a structure that can rotate in a state where at least one of a pair of locking fittings attached to both ends in the longitudinal direction of the skirting board body is biased in the locking direction by the biasing means, By rotating the locking bracket with respect to the skirting board main body, the locking brackets at both ends in the longitudinal direction of the skirting board main body can be locked with respect to the horizontal member without tilting the skirting board main body greatly, and It can be released, and the locking bracket is rotated against the biasing force of the biasing means, and the locking portion at the lower end of the locking bracket is inserted into the gap, or the gap After escaping from the base plate, simply releasing the force against the urging force, the locking part of the locking bracket can be locked to the horizontal member, or the locking can be released. Can be done easily and instantly. Moreover, a pair of latching metal fittings attached to both ends in the longitudinal direction of the skirting board main body is composed of a pair of metal fitting pieces arranged on both sides of the skirting board main body, and is supported rotatably with respect to the skirting board main body. A pair of metal pieces constituting the locking metal fittings rotate together, and at least one of them protrudes upward from the upper end of the skirting board main body and serves as an operation portion for rotating the locking metal fittings. Therefore, it is easy to rotate the locking metal fitting.

It is a fragmentary perspective view of a temporary scaffold. It is a partial top view similarly. It is a perspective view of the skirting board A. It is a disassembled perspective view of the base board A. It is action explanatory drawing which shows the state in the middle of latching one locking metal fitting E of the skirting board A to the horizontal member. FIG. 10 is an operation explanatory diagram of a state in which one locking fitting E is locked to the horizontal member 4 and the other locking fitting E is locked to another horizontal member 4. It is operation | movement explanatory drawing in the state by which each locking metal fitting E was latched by each horizontal member 4 which opposes, and the baseboard A was arrange | positioned vertically. FIG. 5 is a perspective view of a usage state of a locking metal fitting E having a structure in which an operation portion 11 b ′ of the metal piece 11 is tilted outward by a hinge 31.

  Hereinafter, the present invention will be described in more detail with reference to the best examples. 1 is a partial perspective view of a temporary scaffold, FIG. 2 is a partial plan view of the same, FIG. 3 is a perspective view of a baseboard A, and FIG. 4 is an exploded perspective view of the baseboard A. . First, the outline of the temporary scaffold will be described, and then the baseboard A according to the present invention will be described in detail.

  1 and 2, the temporary scaffold is supported by a jack 1, and a pair of support columns 2 is erected at a predetermined interval along a direction Q perpendicular to the movement direction P of the worker. A plurality of sets of support columns 2 are erected along the movement direction P of the worker at intervals greater than the predetermined interval. Two sets of holders 3 are fixed to the support column 2 at a fixed interval along the height direction. The holder 3 forms an insertion space having a substantially square cross section in a state of being fixed to the column 2, and the insertion space is gradually narrowed downward. The two holders 3 are fixed at opposite positions and are slightly displaced along the height direction. The horizontal member 4 is disposed between a pair of struts 2 that face each other along a direction Q orthogonal to the movement direction P of the worker, and the fitting members 5 (see FIGS. 2 and 3) at both ends are respectively provided. It is fitted to the holder 3 of the column 2 and is installed between the pair of columns 2. In FIGS. 1 and 2, only the horizontal member of the portion where the tread board 6 is supported is shown, but in reality, a large number of the support members 2 are installed at different heights. On the other hand, the vertical member 7 is a member that is installed between two struts 2 that are adjacent to each other in the movement direction P of the operator, and that is installed at the height of the operator's hand. It will be slid. Between the horizontal members 4 adjacent to each other along the movement direction P of the worker, a plurality of hooks 8 provided at both ends in the longitudinal direction of the tread 6 are hooked on the horizontal members 4 so that they are adjacent to each other. A footboard 6 is disposed between the horizontal members 4 to be operated. In this way, the temporary scaffold is assembled by assembling a large number of support columns 2, horizontal members 4, and vertical members 7 together by attaching the attachment material 5 to the holder 3 provided on the support column 2. Necessary rigidity is secured after facilitating both attachment and disassembly.

  When the scaffold is assembled as described above, a predetermined gap 9 is formed between the longitudinal edges of the tread board 6 and the horizontal member 4, and the lower end of the locking bracket E is formed in the gap 9. By inserting the locking portion 11 a and locking it to the horizontal member 4, the skirting boards A are arranged vertically at both ends in the width direction of the tread 6. The skirting board A includes a skirting board main body 20 having a length corresponding to the length of the tread board 6 (interval of the support columns 2 along the movement direction of the operator) and a rectangular shape having a large slenderness ratio, and the skirting board main body 20 And a pair of locking metal fittings E that are releasably locked to the horizontal member 4 that supports the tread plate 6. The skirting board body 20 has a structure in which both end portions in the width direction are double-folded on the same side to ensure bending strength, and each corner portion of two places arranged on the lower end side in the arrangement state is chamfered. Is given.

  The pair of locking fittings E has a symmetrical shape. The locking metal E connects the pair of metal pieces 11 disposed on both sides of the skirting board main body 20 and the pair of metal fittings 11 integrally, and supports the skirting board main body 20 so as to be rotatable. Similarly, the pin 12 and the pair of metal fittings 11 are integrally connected to each other, and a restriction pin 13 for restricting a rotation range with respect to the base plate body 20 is connected via the support pin 12 and the restriction pin 13. The tension spring 14 is configured to urge the pair of metal pieces 11 connected to the main body 20 integrally in the locking direction. The pair of metal pieces 11 are different from each other in the central portion in the longitudinal direction of the metal plate material in order to widen the width of each locking portion 11a at the lower end portion and enable the baseboard body 20 to be self-supporting in the locked state. The operation part 11b protruding from the upper end surface of the skirting board main body 20 in a state of being connected to the skirting board main body 20 only on the metal piece 11 on the side disposed inside is bent upward in the use state. It is extended to. Insertion holes 15 and 16 through which the fulcrum pin 12 and the regulation pin 13 are inserted are formed in portions of the metal piece 11 that are in close contact with the skirting board main body 20. Further, the metal piece 11 has the lower end portion of the engaging portion 11a inserted into the gap 9 to be engaged with the horizontal member 4, or from the state of being engaged with the horizontal member 4, the engaging portion 11a has a gap. In order to make it easy to escape from 9, the rear portion 11c of the locking portion 11a is in a state in which the locking metal fitting E is rotated by a predetermined angle around the fulcrum pin 12 while being locked to the horizontal member 4. It is designed to be almost vertical. Thereby, the interference with the horizontal member 4 is avoided, and the locking portion 11a of the locking bracket E can be inserted into and removed from the narrow gap 9. In addition, in the state which the latching metal E latched to the horizontal member 4, in order to avoid interference with the latching | locking part 11a of the latching metal E of another baseboard A arrange | positioned in series, the latching metal E The front end of the locking portion 11 a does not exceed the center of the horizontal member 4.

  A fulcrum pin hole 21 for inserting the fulcrum pin 12 and an arc-shaped long hole 22 centering on the fulcrum pin hole 21 are formed at the longitudinal end of the skirting board main body 20. The pair of metal fittings 11 are arranged on both sides of the skirting board main body 20, and the fulcrum pins 12 made of bolts are inserted into the fulcrum pin holes 21 and screwed with the nuts 23, thereby being connected at the fulcrum portions. At the same time, the regulation pin 13, which is also a bolt, is inserted through the elongated hole 22 and screwed into the nut 24, thereby being connected at the elongated hole 22. In addition, the hook pin 25 attached to the upper end of the outer metal piece 11 that does not have the operation portion 11b, and another hook pin arranged on the inner side of the arrangement position of the latch metal E in the skirting board body 20 26, both ends of the tension spring 14 are connected. Therefore, the locking metal E is biased in the direction in which the locking portion 11a of each metal piece 11 is locked to the horizontal member 4, and the longitudinal direction of the skirting base body 20 with the fulcrum pin 12 as a rotation fulcrum. It is rotatably attached to both ends of the. The locking metal fitting E is attached to the horizontal member 4 so as to be rotatable so as to satisfy the following two conditions. The two conditions are that the elongated hole is such that the urging force of the tension spring 14 acts in a direction to maintain the locking even when the locking portion 11a of each metal piece 11 is locked to the horizontal member 4. In a state where the arrangement position and length of 22 are determined, and the locking portion 11a of each metal piece 11 is separated from the horizontal member 4 against the urging force of the tension spring 14. That is, the shape of the locking portion 11a of each metal piece 11 is determined so that the locking portion 11a of each metal piece 11 can escape from between the gaps 9.

  Next, referring to FIG. 5 to FIG. 7, the gap 9 formed between the longitudinal edge of the tread 6 and the horizontal member 4 is used at both ends in the width direction of the tread 6. A case where the baseboard A is arranged vertically and a case where the attached baseboard A is removed will be described. FIG. 5 is an operation explanatory view showing a state in the middle of locking one locking fitting E of the skirting board A to the horizontal member 4, and FIG. 6 shows one locking fitting E attached to the horizontal member 4. FIG. 7 is an operation explanatory view in a state in which the other locking metal E is locked to another horizontal member 4 after being locked. FIG. Is an operation explanatory view in a state in which the skirting board A is vertically arranged.

  In order to arrange the baseboard A vertically at both ends in the width direction of the tread 6, as shown in FIG. 5, the locking portion of one locking fitting E against the pulling force of the tension spring 14. The locking metal fitting E is rotated clockwise around the fulcrum pin 12 in a direction away from the horizontal member 4 so that the rear side portion of the locking portion 11a is substantially vertical. In this state, the locking portion 11a at the lower end of the locking bracket E is inserted into the gap 9, and the lower end of the locking portion 11a passes through the center of the horizontal member 4. When the force against the tensile force of the tension spring 14 is released, the locking metal fitting E is opposite to the above with the fulcrum pin 12 as the center due to the tensile force of the tension spring 14 as shown in FIG. By rotating counterclockwise, the locking portion 11a at the lower end of the locking bracket E is locked to the horizontal member 4. .

  Next, with respect to the other locking bracket E, when the locking portion 11a at the lower end of the locking bracket E is locked to the other horizontal member 4 in the same manner as described above, FIG. 1 and FIG. As shown, the skirting board A is arranged perpendicular to the end of the tread board 6 in the width direction. Further, in a state where the locking portion 11a of the locking metal fitting E is locked to the horizontal member 4, the regulation pin 13 attached to the locking metal fitting E is formed at the longitudinal end of the baseboard body 20. Since the end of the elongated hole 22 has not been reached, the tensile force of the tension spring 14 acts to maintain the locking between the locking portion 11a of the locking metal E and the horizontal member 4. As a result, even when an impact force, vibration, or the like is applied during use of the scaffold, the engagement between the engagement portion 11a of the engagement fitting E and the horizontal member 4 is not released, and safety is improved.

  On the other hand, in order to remove the skirting board A from the opposing horizontal members 4 when the scaffold is dismantled, each operation may be performed in the reverse order of the mounting. That is, the locking portion 11a of the locking bracket E is moved in a state where the locking bracket E is rotated in a direction in which the locking portion 11a is separated from the horizontal member 4 against the tensile force of the tension spring 14. Escape from the gap 9. Thereafter, with respect to the other locking metal fitting E, the locking portion 11a is made to escape from the gap 9 in the same manner.

  In this way, the locking metal fittings E attached to both ends in the longitudinal direction of the skirting board main body 20 can be rotated in a state of being biased in the locking direction with respect to the horizontal member 4 by the tensile force of the tension spring 14. Therefore, the longitudinal direction of the skirting board body 20 with respect to the horizontal member 4 can be obtained by rotating the locking metal fitting E with respect to the skirting board body 20 without tilting the skirting board body 20 greatly. The locking metal fittings E attached to both ends of the metal plate can be locked and released. Moreover, the locking fitting E is rotated against the tensile force of the tension spring 14, and the locking portion 11 a at the lower end of the locking fitting E is inserted into the gap 9 or escapes from the gap 9. After the release, only by releasing the force against the tensile force, the locking portion 11a of the locking bracket E can be locked to the horizontal member 4, or the locking can be released. The skirting board A can be attached to and detached from 4 easily and instantaneously.

  Even if the tension force of the tension spring 14 is small, if the locking between the locking portion 11a of the locking metal fitting E and the horizontal member 4 is not released, the skirting board main body 20 is leveled and the engagement between both ends is fixed. It is also possible to lock each horizontal member 4 so that each locking portion 11a of the fastener E is simultaneously dropped into each gap 9 at both ends.

  Further, in the above embodiment, each of the locking fittings E attached to both ends in the longitudinal direction of the skirting board body 20 is urged in the locking direction with respect to the horizontal member 4 by the pulling force of the tension spring 14. Although the structure is rotatable in the state, the locking metal fitting E having the above-described rotatable structure is attached to one end of the baseboard body 20 in the longitudinal direction, and the other end is engaged with a fixed structure. The structure to which the fastener E was attached may be sufficient. In the case of the baseboard having this structure, when the baseboard is attached to the horizontal member 4, the baseboard body is largely inclined, and the locking bracket of the fixed structure is locked to the horizontal member, and then the engagement of the rotating structure is performed. The fastener is rotated with respect to the skirting board main body as described above, and is engaged with another horizontal member. On the other hand, when removing the skirting board from the horizontal member, after releasing the locking from the side of the rotating structure locking bracket, the baseboard body is inclined to lock the locking bracket of the fixed structure. To release.

  In addition, as shown in FIG. 8, when the protruding length of the operation portion 11b of the metal piece 11 arranged on the back side of the baseboard body 20 is long, the operation portion 11b may become an obstacle. The part 11b is connected to the body part of the metal piece 11 by the hinge 31, and the operation part 11b may be tilted outward when the baseboard A is not attached or detached.

A: Skirting board
E: Locking bracket
P: Movement direction of the worker
Q: Direction perpendicular to the direction of movement of the worker
2: Prop
4: Horizontal material
6: Tread
7: Vertical member
9: Clearance between the footboard and the horizontal member
11: Metal piece
11a: Locking part 11b, 11b ': Operation part
12: fulcrum pin
13: Restriction pin
14: Tension spring (biasing means)
20: Baseboard body
22: Long hole
31: Hinge

Claims (2)

A large number of one-to-one support columns standing at predetermined intervals along the movement direction of the worker, a large number of horizontal members constructed between the one-to-one set of support columns, and the movement direction of the worker It is used for scaffolds that are temporarily installed at construction sites, etc., by assembling each erection member with different functions such as a vertical member laid between adjacent struts along the side, and a step board supported between the adjacent horizontal members, In order to prevent the operator's foot from being stepped down from the step board or from falling various work tools, building materials, etc., it is a scaffolding baseboard that is arranged vertically at both ends in the width direction of the step board. And
A skirting board main body having a rectangular shape with a large slenderness ratio, and a pair of locking fittings attached to both longitudinal ends of the skirting board main body so as to be detachably locked to the horizontal member. Each locking bracket is composed of a pair of bracket pieces arranged on both sides of the skirting board main body ,
At least one of the pair of locking metal fittings is supported so as to be rotatable with respect to the skirting board main body in a state of being biased in a direction locked by the horizontal member by a biasing means,
A pair of metal fitting pieces that constitute a locking metal fitting that is rotatably supported with respect to the skirting board main body rotate integrally, at least one of which protrudes upward from the upper end of the skirting board main body, A skirting board for scaffolding, which is an operation part for rotating a locking metal fitting . The operation portion is provided on a metal piece disposed inside the baseboard body, and is hinged to the other part of the metal piece so as to be tilted outward of the baseboard body . The scaffolding skirting board according to claim 1 , wherein:

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