JP6336763B2 - Closing member for lifting opening in scaffold construction - Google Patents

Description

The present invention relates to a closing member for closing a non-lifting part of a lifting opening provided on a scaffolding floor in a scaffold construction.

Temporary scaffolding constructed at a construction site or construction site provides a scaffolding floor by mounting a scaffolding plate on a horizontal member connecting struts. At this time, in order to enable the traffic between the upper and lower floor scaffolding floors, the lifting floor is formed by lacking the upper floor scaffolding plate, Of the non-elevating parts, the upper end part of the temporary staircase is connected to the elevating part, and a handrail is provided on the girder side of the elevating opening part for safety.

By the way, the handrail body maintains an upright posture by arranging an auxiliary handrail extending obliquely above the non-lifting portion and fixing the tip of the auxiliary handrail to a post facing the non-lifting portion. Is configured to do. Therefore, the non-elevating part is in an open state below the auxiliary handrail, and there is a danger that the operator will step on the foot.

Therefore, a closing member that closes the non-elevating part is provided.

JP 2002-30805 A

The closing member proposed by Patent Document 1 is formed in a substantially right triangle shape so as to close the opening of the non-lifting part located below the auxiliary handrail, and is mounted on the horizontal member facing the non-lifting part. A hook fitting to be stopped and a locking fitting mounted on the girder of the handrail body are provided.

However, with respect to both ends in the spar direction of the lifting opening, the scaffold construction body is provided with a temporary staircase with one end as a lifting opening, and conversely with the other end as a lifting opening. In some cases, there are both right-handed and left-handed. Accordingly, since the left and right positions of the non-elevating part are also different in correspondence with the right hand and left hand of such a staircase, in the case of Patent Document 1, two types of closures for the right hand and the left hand are used. There is a problem that a member has to be provided.

An object of the present invention is to solve the above-mentioned problems and to provide a closing member that can be freely accommodated in either the right hand or the left hand and can always be suitably attached to a non-elevating part.

Therefore, the present invention is configured as a means, with respect to the wife direction and the girder direction of the scaffolding plate, a pair of struts connected by a horizontal member in the wife direction as one set, and one set of struts at a predetermined interval in the girder direction. And a plurality of scaffolding plates arranged side by side in the wife direction are installed on the horizontal member to form a scaffolding floor extending in the girder direction, and facing one of the scaffolding floors. Forming a lifting opening by making the scaffolding plate lack, and forming a lifting part and a non-lifting part at both ends of the lifting opening in the spar direction, and a handrail girder along the spar direction of the lifting opening. In the scaffold construction body provided with a material and configured to close the non-lifting part with a closing member, the closing member forms a floor on both front and back surfaces of the main body and is mounted on a horizontal member facing the non-lifting part a plurality of hook fitting which are spaced so locked Includes a locking bracket mounted to the girders of the handrail body is provided with a position changing means for enabling the posture change between at least the hook fitting upward orientation and the downward orientation, the attitude changing means, from the body A support shaft composed of a bolt projecting in a direction intersecting the horizontal member, a U-shaped bracket that hangs a pair of side walls from an upper wall, and the hook metal fitting fixed to one side wall; and the bracket The hook metal fitting is constituted by a nut fastened to the spindle through the U-shaped space of the bracket in a state where the other side wall of the bracket is rotatably attached to the spindle, and the upper wall of the hook metal fitting is directed upward The non-elevating part is configured on one end side of the elevating opening and the other end side of the closing member. With the front and back reversed With mounted locking hook bracket to horizontal member lies in comprising configured to allow mounting the locking bracket to spars of the handrail body.

The closing member is located between upper walls of brackets provided on the plurality of hook metal fittings in a state where the non-lifting portion of the lifting opening is closed, and closes the gap between the main body and the horizontal member. It is preferable to provide overhanging portions on both the front and back surfaces of the closing member.

It is preferable that the closing member is provided with sensing walls on both the front and back sides of the closing member that stand and stand on the side edge facing the lifting opening in a state where the non-lifting portion of the lifting opening is closed.

The said closing member is provided with the vertical position change means which makes it possible to move the said main body up and down with respect to the said locking metal fitting, and to fix in a movement state, The Claim 1, 2, 3 or 4 characterized by the above-mentioned. Closing member of the lifting opening in the scaffold construction body.

According to the present invention, the closing member 7 can freely correspond to the non-elevating / lowering part 4a having different left and right positions in both cases where the elevating opening 4 has a right hand and a left hand. There is an effect that it is possible to install.

It is a perspective view which shows the scaffolding structure to which the closure member of this invention is attached, and shows the raising / lowering opening part which provided the temporary staircase of the left hand. It is a perspective view which shows the scaffolding structure to which the closure member of this invention is attached, and shows the raising / lowering opening part which provided the temporary staircase of right hand. It is a perspective view which shows each structural member of the closure member which concerns on 1st Embodiment of this invention in an exploded state. The action of the closure member concerning a 1st embodiment is shown, and (A) and (B) are perspective views showing the state where a hook metal fitting and a locking metal fitting were reversed mutually. The attachment state of the closure member concerning a 1st embodiment is shown, (A) is a top view showing the state where the closure member was attached to the non-lifting part of the raising-and-lowering opening part which provided the left-handed temporary staircase, (B) FIG. 6 is a plan view showing a state in which a closing member is attached to a non-lifting / lowering portion of a lifting / lowering opening provided with a right hand temporary stairs. It is the sectional view on the AA line of FIG. It is a perspective view which shows each structural member of the closure member which concerns on 2nd Embodiment of this invention in an exploded state. It is a perspective view which shows the closure member which concerns on 2nd Embodiment. It is the sectional view showing the attachment state of the closure member concerning a 2nd embodiment, and showing a sensing wall and a vertical movement change means.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

FIG.1 and FIG.2 has shown the raising / lowering opening part to which the closure member of this invention is attached regarding the temporary scaffold structure.

The scaffold construction body includes a pair of support pillars 3a and 3b connected in the wife direction X with the horizontal member 2 with respect to the wife direction (X direction shown in the figure) and the girder direction (Y direction shown in the figure) of the scaffold board 1. It is constructed by arranging a set of struts at a predetermined interval in the girder direction Y and connecting them with connecting members (not shown), and a plurality of arbitrary scaffolding plates 1 on adjacent horizontal members 2 and 2. Is installed in parallel with the wife direction X, thereby forming a scaffolding floor extending in the girder direction Y. The scaffold structure may be a shaft assembly type or a frame type, and the type, the connecting structure of each part, etc. are arbitrary and are not limited at all.

When the scaffolding plate 1 is installed, the lifting opening 4 is opened by facing the one column 3a of the scaffolding floor and making the scaffolding plate missing. In the case of the figure, the elevating opening 4 is formed at a location facing the external space of the scaffold construction, and is therefore surrounded by the scaffolding plate 1 arranged in three directions of the elevating opening 4, and both ends in the girder direction Y An elevating part 4a and a non-elevating part 4b are formed facing the horizontal members 2 and 2 arranged in the part.

The elevating opening 4 is formed for the convenience of an operator to move between the upper and lower scaffolding floors, and a temporary staircase 5 connected to the lower flooring scaffolding floor is installed below the elevating opening 4. The

In the case of FIG. 1, with respect to the direction shown in the drawing, the upper end of the staircase 5 is placed on the horizontal member 2 facing the elevating part 4a, with the left end of the elevating opening 4 being the elevating part 4a and the right end being the non-elevating part 4b. The hook provided on the top is locked, and a stair that rises to the left from the lower floor to the upper floor is provided (hereinafter referred to as “left-handed”).

On the other hand, in the case of FIG. 2, with respect to the illustrated direction, the right end of the elevating opening 4 is the elevating part 4a and the left end is the non-elevating part 4b. A hook provided at the upper end of the door is locked, and a stair that goes upward from the lower floor to the upper floor is provided (hereinafter referred to as “right-handed”).

In either case of the left hand or the right hand, a handrail body 6 serving as an opening guard is installed at the opening edge of the elevating opening 4 on the beam side. The handrail body 6 locks hooks provided at both ends of a beam member 6a extending in the beam direction Y along the opening edge to the horizontal members 2 and 2, respectively, and the non-elevating part 4b is inclined at an upper position. The auxiliary handrail 6b extending in the crossing direction is disposed, and a predetermined bracket is held by fixing the locking metal fitting provided at the tip of the auxiliary handrail 6b to the column 3a facing the non-lifting / lowering portion 4b.

The handrail body 6 can correspond to both the case of the lift opening 4 provided with the left-handed staircase 5 shown in FIG. 1 and the case of the lift opening 4 provided with the right-handed staircase 5 shown in FIG. Yes, it can be mounted in a posture that is reversed from side to side. Therefore, in any case where the left and right sides are different, the non-lifting / lowering part 4b is guarded by the auxiliary handrail 6b to prevent the operator from dropping, but the non-lifting / lowering part 4b is opened below the auxiliary handrail 6b. If there is, there is a danger that the operator will step on his / her foot, so that the worker is blocked by the blocking member 7.

(First embodiment)
3 to 6 show a first embodiment of the closing member 7. The closing member 7 forms floor surfaces by providing floor materials 9a and 9b on both front and back surfaces of the frame-shaped main body 8, and is mounted and locked from above on the horizontal member 2 facing the non-elevating part 4b. A plurality of hook metal fittings 10 arranged at intervals and a locking metal fitting 11 mounted on the beam member 6a of the handrail body 6 are provided.

In the case of the illustrated example, the main body 8 is at least in a state in which it is parallel to the side frame 8a facing the horizontal member 2, a girder frame 8b facing in parallel to the girder 6a, and the auxiliary handrail 6b. The oblique frame 8c that connects the wife side frame 8a and the girder side frame 8b forms a rigid frame having a substantially right triangle shape.

The hook fitting 10 includes a hook-shaped hook 10a that holds the horizontal member 2 from above and a lock piece 10b that can be advanced and retracted downward from the hook, and has an upward posture with respect to the wife side frame 8a. It is attached via a hook fitting posture changing means 12 so that the posture can be changed between the two and the downward posture.

The hook bracket posture changing means 12 includes a support shaft 12a such as a bolt protruding from both ends of the end frame 8a along an axis A1 orthogonal to the horizontal member 2, and a base end portion of the hook bracket 10. It is comprised by the U-shaped bracket 12b fixedly mounted in this, and is rotatably supported by inserting the support shaft 12a in the insertion hole 12c of the bracket 12b. As shown in FIG. 3, the bracket 12b is formed in a U-shape that hangs a pair of side walls 19b, 19c from the upper wall 19a, and the base end portion of the hook metal fitting 10 is fixed to one side wall 19b. An insertion hole 12c for inserting the support shaft 12a is provided in the side wall 12c, and the hook fitting 10 is mounted and locked on the horizontal member 2 with the upper wall 19a facing upward. The support shaft 12a is preferably fixed to the end frame 8a by welding or the like. Thereby, the hook metal fitting 10 is comprised so that upside down is possible. And the nut 12d is screwed by the volt | bolt which comprises the spindle 12a, and the bracket 12b is being fixed so that it may be in a removal prevention state from the spindle 12a.

The main body 8 is located between the upper walls 19a of the brackets 12b provided on the pair of hook metal fittings 10 attached to the left and right ends, and projects from the front and back surfaces of the wife side frame 8a toward the outside. 13a and 13b are preferably provided, and in the case of the illustrated example, a pair of metal plates having an L-shaped cross section are fixed to the side surface of the wife side frame 8a by welding or the like to form the overhang portions 13a and 13b on the front and back surfaces. doing.

The locking metal fitting 11 is formed by bending a metal plate so that a downward U-shaped mounting portion 11a crowned by the beam member 6a and a curling prevention portion 11b from the tip of the downward bending piece of the mounting portion 11a. And is attached to the girder side frame 8b via the locking bracket posture changing means 14 so that it can be inverted upside down and fixed in the inverted state.

The locking bracket posture changing means 14 includes a support shaft 14a such as a bolt projecting from the beam side frame 8b along an axis A2 orthogonal to the beam member 6a, and a mounting base 11a of the locking bracket 11. It is composed of an insertion hole 14b provided at the end, and is pivotally supported by inserting the support shaft 14a into the insertion hole 14b. The support shaft 14a is preferably fixed to the beam side frame 8b by welding or the like. Thereby, the latch metal 11 is comprised so that it can be turned upside down, and the attitude | position change is possible between an upward attitude | position and a downward attitude | position. At this time, in the case of the illustrated embodiment, a nut 14c is screwed onto a bolt constituting the support shaft 14a, and the locking metal fitting 11 is fixed so as to be prevented from being detached from the support shaft 14a.

The flooring materials 9a and 9b are preferably formed of a sheet-like member having shape retaining property having anti-slip means on the surface, such as a striped plate made of a metal plate, a punching metal, or a metal mesh, and is provided on both front and back surfaces of the main body 8. It is fixed by welding or the like.

According to the closing member 7 configured as described above, as shown in FIG. 4, the hook metal members 10 and 10 and the locking metal member 11 are rotatable around the axis lines A1 and A2, respectively. It can be fixed in the inverted state. That is, the hook metal fittings 10 and 10 can be turned upside down by rotating around the axis of the support shaft 12a, and are fixed in a secured state by the nut 12d after the posture change. In this case, when the inverted non secures by fastening the nut 12d, so to form a bracket 12b in a U-shape, a tool such as a spanner can be easily inserted toward the nut 12d.

Similarly, the locking fitting 11 can be turned upside down by rotating around the axis of the support shaft 14a, and is fixed in a retaining state by a nut 14c after the posture is changed. At this time, the nut 14c may be fixed so as not to be reversed, and the mounting portion 11a of the locking fitting 11 is formed in a U-shape so that a tool such as a spanner can be easily inserted toward the nut 14c. can do.

Therefore, when the non-elevating part 4b of the elevating opening 4 provided with the left-handed staircase 5 shown in FIG. 1 is closed by the closing member 7, as shown in FIG. The posture of the hook metal fittings 10 and 10 is adjusted so that they are mounted and locked from above with respect to the material 2 (indicated by reference numeral 2a), and the posture of the lock metal fitting 11 is set so as to be mounted from above with respect to the girders 6a. It only has to be fixed in a state of being arranged and mounted and locked to the horizontal member 2a and the beam member 6a, respectively, whereby the non-elevating / lowering portion 4b is closed by the closing member 7 and the floor surface 9b forms the tread. At this time, the bracket 12b has the wall surface of the upper wall 19a positioned on the tread side, and the gap between the wife side frame 8a and the horizontal member 2a is not the whole area, but is more suitable for the overhanging portion 13b. Blocked.

On the other hand, when the non-elevating part 4b of the elevating opening 4 provided with the right-handed staircase 5 shown in FIG. 2 is closed by the closing member 7, as shown in FIG. The posture of the hook metal fittings 10 and 10 is adjusted so as to be mounted and locked from the upper side with respect to the frame member 2 (indicated by reference numeral 2b), and the posture of the lock metal fitting 11 so as to be mounted from the upper side with respect to the beam member 6a. Can be fixed in a state where they are arranged and mounted and locked to the horizontal member 2a and the beam member 6a, respectively, whereby the non-elevating part 4b is closed by the closing member 7 and the floor surface 9a can form a tread. it can. Also in this case, the bracket 12b has the wall surface of the upper wall 19a positioned on the tread side, and the gap between the wife side frame 8a and the horizontal member 2a is not the whole area, but is more suitable for the overhanging portion 13a. Obstructed.

In any case, in the hook fittings 10 and 10, the hook 10 a grips the horizontal member 2 from the upper side, and the lock piece 10 b is locked to the lower side of the horizontal member 2. As shown in FIG. 6, the mounting bracket 11 is mounted on the girder 6a, and the locking bracket 11 is locked in a state in which it cannot be lifted by allowing the anti-turning portion 11b to enter the lower side of the scaffold plate 1.

(Second Embodiment)
7 to 9 show a second embodiment of the closing member 7. The closing member 7 is provided with floor materials 9a and 9b on both front and back surfaces of a frame-shaped main body 8, and a plurality of hook fittings 10 mounted and locked from above on the horizontal member 2 facing the non-elevating part 4b, and the handrail A locking fitting 11 is provided which is mounted in a state where the beam 6a of the body 6 is gripped from the lateral direction. Since the configuration related to the main body 8, the hook fitting 10, and the hook fitting posture changing means 12 is the same as that in the first embodiment, the same reference numerals are used. Therefore, the configuration common to the first embodiment is omitted by using the above description, and the configuration different from the first embodiment will be described below.

The locking bracket 11 is formed in a U-shape that opens toward the beam member 6a so that the beam member 6a can be gripped from the lateral direction by bending the metal plate, and is bent from the flat plate portion 11c. The upper and lower pieces 11d and 11d are each provided with a hole and a nut 15 facing the hole is fixed by welding or the like, and a bolt 16 into which the nut 15 is screwed can be moved forward and backward inside the upper and lower pieces 11d and 11d. Protruding.

For this reason, since the latch metal 11 can hold the girder 6a from the lateral direction even in the posture in which the front and back surfaces of the closing member 7 are reversed, the attitude change for the latch metal described in the first embodiment is performed. The means 14 need not be provided. Therefore, it should be understood that the posture changing means 14 for a locking metal fitting of the present invention is not an essential requirement of the invention.

In the second embodiment, it is preferable that the locking metal fitting 11 is attached to the girder frame 8 b of the main body 8 via the vertical position changing means 17.

The vertical position changing means 17 includes a bolt 17a protruding from the beam side frame 8b along an axis A2 orthogonal to the beam material 6a, and a long hole 17b extending in the vertical direction provided in the flat plate portion 11c of the locking metal fitting 11. And a nut 17c for fixing the bolt 17a in a state where the bolt 17a is inserted into the elongated hole 17b. The bolt 17a is preferably fixed to the girder frame 8b by welding or the like.

The flooring materials 9a and 9b are respectively provided with overhanging portions 13a and 13b projecting from the girder side frame 8b and sensing walls 18a and 18b rising from the front and back surfaces of the oblique frame 8c.

According to the closing member 7 configured as described above, as shown in FIG. 8, since the hook fittings 10 and 10 are provided with the hook fitting posture changing means 12, the hook fittings 10 and 10 are rotatable around the axis A1. Therefore, it can be inverted upside down and fixed in the inverted state. This is the same as in the first embodiment.

Therefore, when the non-elevating part 4b of the elevating opening 4 provided with the left-handed staircase 5 shown in FIG. 1 is closed by the closing member 7, the horizontal member 2 (indicated by reference numeral 2a) facing the right side in the figure is used. What is necessary is just to fix with the nut 12d in the state which adjusted the attitude | position of the hook metal fittings 10 and 10 so that it may be mounted and latched from the upper side, and to mount and latch to the horizontal member 2a. At this time, as shown in FIG. 9, the locking fitting 11 is locked in a state where the girder 6 a is gripped from the lateral direction. Thereby, the non-lifting / lowering part 4b is obstruct | occluded with the obstruction | occlusion member 7, and a tread is formed with the flooring 9b.

On the other hand, when the non-elevating part 4b of the elevating opening 4 provided with the right-handed staircase 5 shown in FIG. 2 is closed by the closing member 7, the horizontal member 2 (indicated by reference numeral 2b) facing the left side in the figure is used. Then, the hook metal fittings 10 and 10 are fixed with the nuts 12d so that they are mounted and locked from above, and mounted and locked to the horizontal member 2b. At this time, the locking metal fitting 11 is locked in a state where the girder 6a is gripped from the lateral direction in the same manner as described above. Thereby, the non-lifting / lowering part 4b is obstruct | occluded with the obstruction | occlusion member 7, and a tread is formed with the flooring 9a.

In either case, the locking metal fitting 11 is fixed in an immovable state because the girder material 6a is clamped by the upper and lower pieces 11d and 11d and the girder material 6a is clamped by fastening the bolts 16 and 16. In the case of the illustrated example, a pair of bolts 16 and 16 are provided on the upper and lower sides, but only one of the bolts 16 may be provided.

In a state where the non-elevating part 4b is closed by the closing member 7, the gap between the wife side frame 8a and the horizontal member 2 is not the entire area, but is preferably closed by the overhanging part 13a or 13b.

In the case of the second embodiment, the closing member 7 is provided with the sensing walls 18a and 18b, and faces the one sensing wall 18 (18a or 18b) to the lifting opening 4 in a state where the non-elevating part 4b is closed. Standing up from the edge. Therefore, when the operator steps on the closing member 7, the tip of the foot touches the sensing wall 18 to predict that the tip is the lifting opening 4, and the worker falls toward the lifting opening 4. The danger of doing can be avoided.

By the way, the sensing wall 18 (18a or 18b) that stands up in the state in which the non-elevating part 4b is closed by the closing member 7 functions effectively to avoid danger as described above, but hangs downward. The sensing wall 18 (18b or 18a) can be an obstacle that interferes with the overhead height of the lower floor scaffolding.

For this reason, the second embodiment is configured such that the vertical position changing means 17 is provided in the locking metal fitting 11 so that the main body 8 can be moved in the lifting direction with respect to the locking metal fitting 11 fixed to the beam member 6a. ing. That is, by loosening the nut 17c, the main body 8 is lifted together with the bolt 17a through the elongated hole 17b, and then the nut 17c is fastened. As shown in FIG. 9, the sensing wall 18 hangs downward from the main body 8 as shown in FIG. (18a or 18b) can be fixed at the position moved upward, and the overhead height of the lower floor scaffolding can be secured.

(Mutual configuration in the embodiment)
The first embodiment and the second embodiment of the closing member 7 have been described above. However, the technical configurations can be combined or combined with each other. For example, with respect to the first embodiment shown in FIGS. 3 to 6, the sensing walls 18a and 18b and the vertical position changing means 17 as in the second embodiment may be provided.

In particular, the above-described vertical position changing means 17 is preferably provided not only in the second embodiment but also in the first embodiment. For example, the girder member 6a of the handrail body 6 is not always at the same height position in the state where it is attached to the horizontal member 2, and the height of each girder member 6a depends on the outer diameter and the like of the girder member 6a. The position may be different. In this case, when the locking member 11 of the closing member 7 is mounted on the girder 6a, the floor surface of the flooring material 9a (9b) of the closing member 7 may not follow the floor surface of the scaffolding plate 1 and may cause a step. . For this reason, if the vertical position changing means 17 is provided, even in such a case, no step is generated between the floor surface of the flooring material 9a (9b) of the closing member 7 and the floor surface of the scaffolding board 1. It becomes possible to adjust the vertical position of the locking metal fitting 11 with respect to the main body 11.

DESCRIPTION OF SYMBOLS 1 Scaffolding board 2 Horizontal member 3a, 3b Post 4 Elevating opening 4a Elevating part 4b Non-elevating part 5 Stair 6 Handrail body 6a Girder material 6b Auxiliary handrail 7 Closure member 8 Main body 8a Wife side frame 8b Girder side frame 8c Oblique frame 9a, 9b Flooring material 10 Hook fitting 10a Hook 10b Lock piece 11 Locking fitting 11a Mounting portion 11b Anti-rotation portion 11c Flat plate portion 11d Vertical piece 12 Hook fitting posture changing means 12a Support shaft (bolt)
12b Bracket 12c Insertion hole 12d Nuts 13a, 13b Overhang portion 14 Locking bracket posture changing means 14a Support shaft (bolt)
14b Insertion hole 14c Nut 15 Nut 16 Bolt 17 Vertical position changing means 17a Bolt 17b Long hole 17c Nut 18a, 18b Sensing wall

Claims (4)

With respect to the direction of the wives and girders of the scaffolding board (1), a pair of struts (3a) and (3b) connected by horizontal members (2) in the direction of the wives, and one set of struts in the girder direction at a predetermined interval And forming a scaffolding floor extending in the girder direction by laying a plurality of scaffolding plates juxtaposed in the wife direction on the horizontal member, and one strut (3a ), The lifting opening (4) is formed by lacking the scaffolding plate, and the lifting opening (4a) and the non-lifting section (4b) are formed at both ends of the lifting opening in the spar direction. In the scaffolding structure configured to provide the girder material (6a) of the handrail body (6) along the girder direction of the opening (4), and configured to close the non-lifting part (4b) by the closing member (7),
Said closure member (7) the floor surface (9a) (9b) formed on both surfaces of the body (8), said to be locked mounting engagement in the non-lifting section horizontal member facing (4b) (2) A plurality of hook metal fittings (10) arranged at intervals, and a locking metal fitting (11) mounted on the girder (6a) of the handrail body (6),
At least the hook fitting (10) is provided with a posture changing means (12) capable of changing the posture between an upward posture and a downward posture, and the posture changing means (12) is provided from the main body (8) to the horizontal member ( 2) A support shaft (12a) made of a bolt projecting in a direction intersecting with the upper wall (19a) and a pair of side walls (19b) (19c) hanging from the upper wall (19a), and one side wall (19b) The bracket (12b) to which the hook metal fitting (10) is fixed, and the other side wall (19c) of the bracket (12b) is rotatably attached to the support shaft (12a). Consists of a nut (12d) fastened to a support shaft (12a) through a space, and when the upper wall (19a) of the hook metal fitting (10) is facing upward, the hook metal fitting (10) is attached to the horizontal member (2) It is configured to lock mounted on the
In both the case where the non-lifting part (4b) is configured on one end side and the other end side of the lifting opening part (4), the front and back of the closing member (7) are reversed. The hook bracket (10) is mounted and locked on the horizontal member (2), and the locking bracket (11) is configured to be mountable on the girder (6a) of the handrail (6). The closing member of the raising / lowering opening part in the scaffold construction body characterized by these. The closing member (7) is an upper wall (19a) (19a) of a bracket provided on the plurality of hook fittings (10) (10) in a state where the non-lifting part (4b) of the lifting opening (4) is closed. 19a), overhanging portions (13a) (13b) for closing the gap between the main body (8) and the horizontal member (2) are provided on both front and back surfaces of the closing member (7). The closing member of the raising / lowering opening part in the scaffold construction body of Claim 1 comprised. The closing member (7) is a sensing wall (18a) (18a) that stands and is located on a side edge facing the lifting opening (4) in a state where the non-lifting section (4b) of the lifting opening (4) is closed. The closing member for the lifting opening in the scaffold construction according to claim 1 or 2 , wherein 18b) is provided on both the front and back surfaces of the closing member (7). The closing member (7) is provided with a vertical position changing means (17) that allows the main body (8) to be moved up and down with respect to the locking metal fitting (11) and fixed in a moving state. The closure member of the raising / lowering opening part in the scaffold construction body of Claim 1, 2 or 3 to do.

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