JPH0717707Y2 - Frame scaffold railing frame - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handrail frame for fall prevention which is attached to a frame scaffold used at a construction site or the like and is attached to the frame scaffold as it is.

[0002]

2. Description of the Related Art Generally, a frame scaffold is constructed by vertically arranging two gate-shaped metal building frames facing each other, and horizontally connecting and fixing a scaffold plate (cloth frame) or a horizontal rail to the upper part thereof. Furthermore, a scaffolding of one unit, which is formed by diagonally straddling braces, is configured to extend upward or leftward and rightward.

When the frame scaffolds are sequentially assembled from the bottom, in order to protect the safety of the worker who rides on the uppermost scaffold, conventionally, ropes and the like are horizontally provided above the uppermost scaffold along the scaffold. It was handed over and the worker was connected to this with a safety belt to ensure safety.

As another conventional frame scaffold, a special H-shaped building frame is used in place of the gate-shaped building frame of the frame scaffolding, and is placed at a position corresponding to a horizontal bar of this H-shaped intermediate height. It has been known that a scaffolding board is hung and fitting protrusions are provided on both sides of this height so that the handrail frame can be erected, and thereby the handrail frame is provided. In such a conventional frame scaffold, the upper end of the H-shaped building frame is fitted to the lower end of the next H-shaped building frame to sequentially form the framed scaffolding upward.

Furthermore, the present inventor and the applicant of the present invention are
No. 71682 (see Japanese Utility Model Laid-Open No. 4-30649) and Japanese Patent Application No. 2-126172 (see Japanese Utility Model Laid-Open No. 4-82249) propose the following handrail frames for frame scaffolding. Japanese Patent Application No. 2-71682 discloses that "locking members having locking holes that can be engaged and disengaged with locking protrusions protruding from the pillars of a building frame are provided on the lower left and right sides of a handrail frame, and A handrail frame for a framed scaffold, characterized in that a gripping metal for holding the pillar is provided on the vertical rod of the handrail frame. " In addition, Japanese Utility Model Application No. 2-126172 discloses that "a locking metal fitting having a hooking portion detachably attachable to a horizontal rod horizontally fixed to a pedestal of a building frame is provided under a vertical rod of a handrail frame, It is a frame scaffolding characterized in that grips for holding the pillars of the building frame are provided at the lower left and right ends of the handrail frame. "

[0006]

[Problems to be Solved by the Invention] In the above-mentioned assembling of the frame scaffold, a rope or a handrail frame for protection is provided for the safety of an operator who works on the scaffold plate on the top floor. , There were the following problems. In the structure in which the rope is hung, there is a problem in that the rope for hanging the worker must be further hung on the rope, which is troublesome for the worker and the hanging rope hinders the work.

Further, the conventional frame scaffold provided with a handrail frame for each floor has a problem that it cannot be applied to a general frame scaffold because a special H-shaped building frame is used.

Further, the handrail frame of the frame scaffold proposed by the applicant of the present invention can easily be attached to a gate-shaped building frame which has been generally used in the past, thereby making the above-mentioned problems. Overcoming, the present invention is further aimed at providing a protective handrail frame with a simpler construction and which can be easily installed.

[0009]

[Means for Solving the Problems] In order to achieve this purpose,
In this invention, the structure of the handrail frame of the framed scaffolding is provided with locking metal fittings that are detachably locked to the horizontal rods of the building frame under the left and right vertical rods of the handrail frame. The engaging part of the metal fitting is displaced from the handrail frame toward the inner side of the scaffold, and
Grasping metal fittings for detachably gripping the pillars of the building frame from the outside of the scaffolding are provided below the locking metal fittings at different heights below the left and right vertical rods of the handrail frame.

Further, on the lower left and right vertical rods of the handrail frame, there are provided locking metal fittings having locking portions which are detachably locked to the horizontal rails of the building frame, and the locking portions of the locking metal fittings are directed toward the inside of the scaffold. When it is positioned so as to be displaced to and the locking portion is locked to the horizontal rod, the tip of the locking portion is not in contact with the uppermost part of the horizontal rod, and
Grasping metal fittings for detachably gripping the pillars of the building frame from the outside of the scaffold are provided below the locking metal fittings under the left and right vertical rods of the handrail frame with different left and right heights. The grip may be configured as a grip using a wedge.

[0011]

When the frame scaffold is assembled, a handrail frame for protection provided on the side of the scaffold plate for work safety can be easily installed by using a commonly used building frame. The handrail frame is tilted toward the scaffolding side, and the locking portions of the locking metal fittings located on the lower side of the vertical rods on both sides of the handrail frame are displaced to the inside of the scaffolding and placed on the horizontal rods of the left and right building frames. By pushing the upper part of the handrail frame to the outside of the scaffolding with this locking part as a fulcrum, the gripping metal fitting below the locking part grips and fixes the pedestal of the building frame from the outside. If the gripping metal is a gripping metal having a wedge-shaped body, it is easier to attach and detach from the inside of the scaffold.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a partially cutaway front view of an embodiment of the present invention, FIG. 2 is a partially cutaway plan view thereof, FIG. 3 is a side view of the same, and FIG. 2 will be described with reference to FIG. 5 showing an enlarged plane of the B part and FIG. 6 which is an explanatory view of the frame scaffolding provided with the present invention.

In the frame scaffold 20, a pair of metal gate-shaped building frames 1 are opposed to each other, a scaffold plate (cloth frame) 2 is hung on a horizontal rod 5 on the upper side of the building frame 1, and a brace 3 is slanted. It is configured by combining. The gate-shaped building frame 1 is formed by fixing the left and right pedestals 4 at the upper ends with horizontal rods 5. In the building frame 1, each of the left and right pedestals 4 for fitting with the lower ends of the pedestals 4 of the upper building frame 1 when assembling the building frame 1 on the upper side has a fitting projection 6 on the upper part.
Is provided. In addition, the left and right pedestals 4 of the building frame 1 are provided with two brace pins 7 projecting to the side of the pedestal 4 on the upper and lower sides, and the brace 3 is bridged to form a framework.

One frame scaffold 20 is the gate-shaped building frame 1
2 facing each other, and the scaffolding plate (cloth frame) 2 is hung over the horizontal rods 5 of the two building frames 1 by the grips 9 provided at both ends, and the brace 3 is diagonally hung over the brace pins 7. Fix and build. The handrail frames 8 are provided on both sides of the scaffolding plate 2, and the length thereof is a length matched with the length of the scaffolding plate 2.

The handrail frame 8 is provided at the lower portion of the left and right vertical rods 10 with locking metal fittings 11 projecting toward the inside of the scaffold and bent outward at a right angle in the length direction of the handrail frame in a plan view.
A tip portion of the locking metal fitting 11 is formed as a locking portion 12 that locks the horizontal rod 5 with a recessed portion on the lower side. The concave portion of the locking portion 12 has a shape in which the tip of the locking portion 12 does not contact the uppermost portion of the horizontal rod 5 when the locking portion 12 is locked to the horizontal rod 5, for example, on the circumference of the horizontal rod 5 in cross section. Horizontal rod 5 shorter than 1/4 of
It is formed so as to be locked to one side surface side. Thereby, even if the positions of the locking portions 12 are the same in the width direction of the frame scaffold 20 and the locking portions 12 are locked to the same horizontal rod 5, the tips of the adjacent locking portions 12 are adjacent to each other. At the top of the cross-section circle of the horizontal rod 5, there is a gap 21 and they do not contact each other. Therefore, even when the frame scaffolds 20 are continuously assembled in the longitudinal direction,
Adjacent handrail frames 8 can be attached by a similar operation.

The handrail frame 8 is a metal fitting 1 for the left and right vertical rods 10.
Grip fitting 13 that projects downward in the length direction from 1
To provide. The heights of the grips 13 provided on the left and right vertical rods 10 are different. Due to this difference in height, the pedestal 4 of the building frame 1 that is common to the adjacent scaffolding
Can be gripped. The grip fitting 13 has an opening 14 that opens toward the inside of the scaffold so that it is gripped from the outside of the scaffold opposite to the protruding side of the locking fitting 11. The main body of the gripping metal 13 is formed by bending a plate-like member into a U-shape with a step on one side, and widening the opening 14 and narrowing the fixing portion 15 to make it smaller than the diameter of the pedestal 4. Form to a slightly wider extent. A wedge-shaped body 16 is provided on each of the left and right plate-shaped bodies forming the opening 14.
The large and small insertion holes 17 and 18 for inserting the are formed. The insertion hole 17 having a smaller hole width has a larger hole thickness, and the insertion hole 18 having a larger hole width has a smaller hole thickness. The wedge-shaped body 16 is a plate-shaped body formed in a wedge shape in which the tip becomes thin, and a hooking portion 19 is provided at the tip thereof, and the height of the hooking portion 19 is such that the insertion hole 17 having a large hole thickness is inserted and removed. Free and thin insertion hole 1
The hook 8 is configured to be hooked on 8.

In the gripping metal piece 13, the tip end portion of the wedge-shaped body 16 is pulled out from the insertion hole 17, and the hooking portion 19 is used to insert the insertion hole 1.
8 only so that the opening 14 is opened. Then, the pedestal 4 of the building frame 1 is inserted from the opening 14 side up to the fixed portion 15, the wedge-shaped body 16 is inserted into the insertion hole 17, and the thick side end of the wedge-shaped body 16 is hammered with a hammer or the like to insert the insertion hole. 17,
The pedestal 4 is gripped and fixed by being fitted into the column 18.

When removing the holding metal fitting 13 from the pedestal 4, contrary to the case of fixing the holding metal fitting 13, the wedge-shaped body 16 is tapped from the tip side with a hammer to move the wedge-shaped body 16 to move the holding metal fitting 1.
3 and pedestal 4 are dissociated.

In order to stand the handrail frame 8 on the frame scaffolding, the scaffolding plate 3 is laid over the building frame 1 which is vertically opposed, and the brace 3 is provided on the brace pin 7 of the pedestal 4 to form one unit. Make up the scaffolding. The worker stands on the scaffold and holds the handrail frame 8
While slightly tilting the inside of the scaffold, the left and right locking fittings 11 are placed on the horizontal rod 5. At this time, the holding metal fitting 1 of the handrail frame 8
3, the wedge-shaped body 16 is removed from the insertion hole 17 and the opening 14 is left open. And, the upper part of the handrail frame 8
By pushing it outward, the opening 14 of the grip 13 naturally fits into the pedestal 4 of the building frame 1 from the outside of the scaffold. Next, the pedestal 4 is inserted up to the fixing portion 15 of the grip fitting 13, the wedge-shaped body 16 is inserted into the insertion hole 17, and the thick side end of the wedge-shaped body 16 is hammered with a hammer or the like to insert into the insertion holes 17 and 18. By fitting, the pedestal 4 is gripped and fixed.

The handrail frames 8 thus set upright on one set of scaffolds are assembled as they are as frame scaffolds while being attached as they are.

[0021]

Therefore, according to the present invention, when the frame scaffold is assembled, the handrail frame for protecting the safety such as the fall prevention of the worker from the scaffold plate can be used for the commonly used construction frame, Moreover, there is an effect that it can be attached and detached very easily.

Further, an operator standing on the handrail frame stands on the scaffold plate, puts the engaging portion of the engaging metal fitting on the horizontal rod from the side of the scaffolding, and rotates the handrail frame outward with the engaging portion as a fulcrum. ,
Since the grip fitting can be fitted to the pedestal, it can be installed by a very small number of people. Also, there is an effect that it can be removed very easily by the reverse operation.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a handrail frame according to an embodiment of the present invention,

FIG. 2 is a partially cutaway plan view,

FIG. 3 is a side view of the same.

FIG. 4 is an enlarged front view of part A of FIG.

5 is an enlarged plan view of part B of FIG.

FIG. 6 is an explanatory view of a frame scaffolding provided with a handrail frame according to the embodiment of the present invention.

[Explanation of symbols]

 1 Building Frame 4 Leg Pillar 5 Horizontal Rod 8 Handrail Frame 10 Vertical Rod 11 Locking Metal Fitting 12 Locking Part 13 Grasping Metal Fitting 16 Wedge 20 Frame Scaffolding

Claims (3)

[Scope of utility model registration request] 1. A handrail frame for a framed scaffold, provided on the lower left and right vertical rods of the handrail frame with locking metal fittings having locking portions that are detachably locked to the horizontal rails of the building frame. The locking part of the is shifted to the inner side of the scaffold from the handrail frame, the tip of the locking part is on a horizontal rod, and the shape of the locking part is not in contact with the ends of the adjacent locking parts. A handrail frame for a framed scaffold, characterized in that grips that are detachably gripped from the outside of the scaffold are provided under the left and right vertical rods of the handrail frame at different heights below the locking metal fittings. 2. A handrail frame for a framed scaffold, provided on the lower left and right vertical rods of the handrail frame with locking metal fittings having locking portions that are detachably locked to the horizontal rails of the building frame. When the locking part of is shifted inward from the handrail frame in the direction of the scaffold, and the locking part is locked to the horizontal rod, the tip of the locking part is not in contact with the uppermost part of the horizontal rod, and Hands of frame scaffolds characterized in that grips for detachably gripping the pillars of the building frame from the outside of the scaffold are provided under the left and right vertical rods of the handrail frame at different heights below the locking metal fittings. Folding frame. 3. A handrail frame for a frame scaffold according to claim 1 or 2, wherein the grip is a grip using a wedge-shaped body.