JPH08431Y2 - Fixing bracket for steel frame scaffolding - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application] The present invention is a steel-framed scaffold for fixing a scaffolding rod of a scaffolding device to this product by attaching the product to the flange edge of a steel frame and fixing the scaffolding device to the steel frame in a suspended state. It is related to the fixing metal fittings.

[0002]

2. Description of the Related Art Conventionally, various types of fixing fittings for steel-frame suspended scaffolds have been proposed.

Of these, practicality is poor unless the structure can be securely fixed to the flange edge of the steel frame and can be adjusted and attached even if the type of the steel frame, that is, the width or thickness of the flange edge is different.

Conventionally, the following structures are known as those which can be adjusted and fixed according to the type of the steel frame.

A pair of slide members are slidably superposed to form a metal fitting base whose length in the left-right direction can be adjusted. Tightening fitting bodies are provided on the left and right upper parts of the metal fitting base so as to face each other. A U-shaped fitting part that fits the flange edge side of the steel frame is formed on the opposite edge of the fitted fitting, and a flange fitted to the U-shaped fitting part is formed on the upper part of each U-shaped fitting part. A fixing bolt is provided so as to tighten the upper surface of the side end portion of the edge.

Therefore, in this conventional structure, a pair of slide members constituting the metal fitting base are slid to adjust the facing distance between the U-shaped fitting portions.

Further, the degree of tightening of the fixing bolt is changed with respect to the change in the thickness of the flange edge portion.

[0008]

However, in such a conventional structure, although it is possible to adjust and fix the flange edge width and thickness in accordance with the change, it is necessary to adjust the width as described above. It is necessary to slide the pair of slide members composing the scaffold to adjust the facing distance of the U-shaped fitting portions.Therefore, the scaffold suspension rod of the scaffolding device should be attached to the metal fitting base before mounting the flange edge. Can't be put together. Therefore, it is necessary to first attach the metal fitting to the flange edge, and connect the scaffolding suspension rod to the metal fitting at this high place, and the work efficiency cannot be improved.

Therefore, in order to avoid this, if the metal fitting base is fixed a little longer at the time of mounting and the metal fitting base is previously attached with the scaffolding rod, the flange edge part is contralaterally loose. It will be attached in a condition where it can be attached, which is extremely dangerous.

The change in the thickness of the flange edge can be adjusted by changing the degree of tightening and hanging of the fixing bolt. However, when the flange edge is relatively thin, the fixing bolt is hung down to adjust the flange edge. Although pressing the upper surface, there is a play gap in the upper surface of the flange edge which may cause play, which is also extremely dangerous.

Further, in the conventional structure, it is necessary to tighten the fixing bolts at two places on each of the left and right sides from above, and the workability is remarkably deteriorated especially in the case of the metal fitting where the mounting work is at a high place.

The present invention solves such a drawback and can be securely fixed to the flange edge of the steel frame, and even if the type of the steel frame, that is, the width or thickness of the flange edge is different, it can be adjusted and mounted very easily. It is a technical problem to provide a fixing bracket for a steel-framed scaffolding which is capable of improving the installation work efficiency and the adjustment installation work efficiency.

[0013]

The gist of the present invention will be described with reference to the accompanying drawings.

The metal frame base 3 is fixed to the flange edge portion 2 of the steel frame 1, and the scaffold suspension rod 5 of the scaffolding device 4 is connected to the metal frame base 3 to fix the scaffolding device 4 to the steel frame 1 in a suspended state. A fixing metal fitting for scaffolding, in which fastening bodies 6 and 7 are provided on the left and right upper portions of the metal fitting base 3 so as to be opposed to each other, and at least one of the fastening bodies 6 is formed in a shape in which the metal fitting base 3 is held and fitted. Then, the tightening body 6 is slidably fitted along the left-right length direction of the metal fitting base 3, and the opposite edges of the two tightening bodies 6 and 7 are opposite to each other in a V-shape in which the facing distance L is smaller toward the upper side. Tightening taper edge 6
A and 7A are formed, and projections 20 and 21 for preventing inclination are formed on the outer side surfaces of both tightening bodies 6 and 7 to support the upper surface of the bearing at the tip.
20A and 21A are formed so as to project from the metal fitting base 3 with a predetermined horizontal gap therebetween, and the upper support surfaces 20A and 21A of the projecting portions 20 and 21 are arranged outside the tightening bodies 6 and 7, respectively. The metal fitting base 3 is arranged inside the bearing upper surfaces 20A and 21A at a predetermined horizontal distance, and the bearing upper surfaces 20A and 21A are arranged so as to be substantially flush with the bearing upper surface 3A of the metal fitting base 3 to form the steel frame 1 Is configured as a three-point bearing structure of left and right bearing upper surfaces 20A, 21A, 3A, 3A and opposing clamping taper edges 6A, 7A in the middle upper portion thereof, and at least one clamping body 6 is slidably moved for slide adjustment. An adjusting device 8 is provided on one side of the metal fitting base 3, and a plurality of bolt holes 9 for connecting the scaffolding rod 5 to the center of the metal fitting base 3 are arranged side by side in the left-right direction of the metal fitting base 3 or on the left and right sides of the metal fitting base 3. It is formed in the shape of a slide long hole that is long in the length direction, and the slide adjustment Clamping member by device 8 6,7
Of the opposing tightening taper edges 6A, 7A is adjusted so that the flange edge portion 2 of the steel frame 1 is sandwiched between the facing tightening taper edges 6A, 7A, and The bolt hole 9 is selected so that the weight of the scaffolding device 4 is loaded substantially in the center between 6A and 7A, or the scaffold suspension rod 5 can be connected to a predetermined position of the bolt hole 9. The present invention relates to a fixing bracket for a steel frame hanging scaffold.

[0015]

For example, when the product of the present invention is previously fastened and fixed to the flange edge portion 2 of the steel frame 1, it is positioned substantially at the center between the opposite tightening tapered edges 6A and 7A of the opposite tightening bodies 6 and 7. The scaffolding device 4 (not shown) through the metal fitting base 3 and the bolt holes 9
The scaffold suspension rods 5 are connected, and the flange edge portion 2 of the steel frame 1 is arranged between the opposed tightening taper edges 6A and 7A of the metal fitting base 3.
The slide adjusting device 8 is activated, and one tightening taper edge 6A
Is slid and moved, and the flange edge portion 2 is clamped and fixed to the opposed clamping taper edges 6A and 7A.

The upper edge of the flange edge portion 2 is the opposed tightening taper edges 6A and 7A which are inclined upward, and the lower edge is the bearing upper surfaces 20A and 21A of the protrusion portions 20 and 21 for preventing inclination and the metal fitting base body 3. Of the bearing upper surfaces 3A and 3A, respectively, and the facing tightening taper edges 6A and 7A have a narrower facing distance L toward the upper side, so that the flange edge 2 is locked and fixed by the above three points. .

[0017]

EXAMPLE The metal fitting base 3 of this example is made of aluminum,
The product is as light as possible.

The metal fitting base 3 is formed of an aluminum angle member having an L-shaped cross section, and the tightening bodies 6 and 7 are slidably mounted on the metal fitting base 3 having an angle shape along the upper plane of the metal fitting base 3. They are fitted to face each other.

The upper part and the lower part of one side surface of the lower part of the tightening bodies 6 and 7 are wrapped around and fitted to each other, and the upper parts are inclined and projected in the directions facing each other, and the opposite edges of the projecting parts are positioned above the sides facing each other. Opposite tightening taper edge 6A inclined toward
7A is welded integrally with the outer surfaces of the tightening bodies 6 and 7 so as to be flush therewith.

Further, an inclination preventing projection 20 for preventing the inclination of the metal fitting is formed by contacting the outer surfaces of the tightening bodies 6 and 7 with the lower edge of the flange edge 2 together with the bearing upper surface 3A of the metal fitting base 3. twenty one
Is formed so that the tip portions thereof are opposed to each other, and the upper support surfaces 20A, 21A of the protruding portions 20, 21 are substantially flush with the upper support surface 3A of the metal fitting base 3, and The projecting degree of the projecting portions 20 and 21 is set so that the opposing tightening taper edges 6A and 7A are located in the upper middle portion between the bearing upper surfaces 20A, 21A, 3A and 3A.

The welding positions of the opposed tightening taper edges 6A and 7A are not particularly limited, but if they are flush with the outer surfaces of the tightening bodies 6 and 7, the welding can be carried out easily at an accurate mounting angle. It is desirable because it can be done.

In the present embodiment, mounting holes 10 for fixing the tightening body 7 on the left side of the drawing are arranged in parallel at three places with a slight gap, and one place with a large gap, for a total of four places. Select one and fix the tightening body 7 with bolts 11.

A stopper 19 is provided to prevent the tightening body 7 on the left side of the drawing from being removed from the metal fitting base body 3. The stopper 19 has a structure in which a screw via a washer is screwed to the other side of the metal base 3, and the washer comes into contact with the tightening body 7 so that the stopper cannot be removed.

The tightening body 6 on the right side of the drawing is constructed so that it can be slid to the left and right by using a slide guide hole 12 and a guide bolt 18 penetrating therethrough as a guide, and a slide adjusting device 8 is provided on this tightening body 6. There is.

Further, the guide bolt 18 and the head of the bolt 11 are structured so as to be locked to the lower edges of the protrusions 20 and 21 for preventing the inclination so that the guide bolt 18 and the bolt 11 can be loosened and tightened easily. I can do it.

In this slide adjusting device 8, a screw rod 13 connected to the tightening body 6 is arranged in the left-right direction along the metal fitting base body 3,
The left end portion is attached to the tightening body 6, and the right end portion is screwed through the screw tube 14 provided at the right end portion of the metal fitting base body 3 so that the metal fitting base body 3 is formed.
A turning handle 15 is attached to the tip of the penetrating from the screw cylinder 14 projecting to the right side.

In this embodiment, a large number of bolt holes 9 are arranged in parallel at a constant interval (between the mounting hole 10 and the slide guide hole 12) of the metal fitting base 3.

Therefore, in this embodiment, the steel frame 1 is previously prepared in advance.
The scaffolding rod 5 of the scaffolding device 4 is mounted on the bolt 16 so that the scaffolding rod 5 of the scaffolding device 4 is located approximately at the center between the opposed tightening taper edges 6A and 7A of the tightening bodies 6 and 7 which are opposed to each other when tightened and fixed to the flange edge 2 of It is stopped and connected, the flange edge 2 of the steel frame 1 is arranged between the opposed tightening taper edges 6A and 7A, and the turning handle 15 is turned to rotate the screw rod with respect to the screw tube 14 integral with the metal fitting base 3. 13 is moved by projecting and the one tightening body 6 is slid and moved to narrow the facing distance L between the facing tightening taper edges 6A and 7A, and the upper edge of the flange edge portion 2 becomes the facing tightening taper edges 6A and 7A. The lower edge is supported by the bearing upper surfaces 20A and 21A of the protrusions 20 and 21 for preventing tilting and the bearing upper surface 3A of the metal fitting base 3 at three points, and clamped and clamped.

In order to safely maintain this fixed state, the nut 17 screwed on the screw rod 13 is fastened and fixed to the screw cylinder 14.

Further, since the stopper 19 is provided, even when the bolt 11 is released to move the position of the tightening body 7, there is no danger of the tightening body 7 falling, and the safety is excellent.

When the size and type of the steel frame 1 are different and the flange edge portion 2 is different in width and thickness, another bolt hole 9 is selected and the weight of the scaffolding device 4 is opposed to the tightening tapered edges 6A and 7A. The opposing tightening taper edges 6A, 7 are loaded so that the load is applied almost in the center of the space and the stability is improved and the bearing strength is improved.
The scaffolding rods 5 of the scaffolding device 4 are movably connected so as to be located substantially in the center between A and tightened again as described above.

Depending on the case, in the present embodiment, the left tightening body 7 can be adjusted by fixing it by selecting another mounting hole 10.

[0033]

EFFECTS OF THE INVENTION Since the present invention is constructed as described above, it is possible to easily hold and fix the product by tightening the slide adjusting device on the side, not from above, and holding the flange edge portion. Since the opposed tightening taper edges are taper edges facing each other in a V shape, simply activating the slide adjustment device to slide and tighten the tightening body securely and easily tightens flange edges with different widths and thicknesses. It can be fixed, and the steel frame is supported and fixed by sandwiching the upper edge of the flange edge from the upper and lower sides with the opposed tightening taper edge and the lower edge at the three points of the upper surface of the support of the projection for tilt prevention and the upper surface of the support of the metal fitting base. Due to the structure, it is an excellent metal fixture for steel frame suspension scaffolding that prevents the metal fitting itself from tilting.

Further, for example, the adjustment and attachment work can be performed with the scaffolding rod of the scaffolding device connected in advance.
In addition, since the scaffolding rod can always be moved and fixed to approximately the center between the opposed tightening taper edges during adjustment, it excels in work efficiency, stability, and practicality with high mounting strength compared to conventional products. It becomes a fixed metal fitting for the steel frame suspended scaffolding.

Further, according to the present invention, a protrusion for preventing inclination is formed on the outer side surfaces of both tightening bodies so that the upper surface of the bearing at the tip of the protrusion is located at a predetermined horizontal distance from the metal fitting base. Since the structure is such that the flange edge of the steel frame is supported at each of the three points, the support upper surface, the support upper surface of the metal fitting base, and the opposing tightening taper edges, the load applied to the metal fittings when the scaffolding device is lifted and fixed to the steel frame. Dispersed in three points, it does not exert a heavy load on only one point, so it exhibits excellent durability strength. Moreover, the clamp body that is clamped and fixed to the flange edge of the steel frame wraps the metal fitting base and is mated Since this tightening body is firmly fitted to the metal fitting base, the connection strength between this tightening body and the metal fitting base is also very strong, and it has a remarkably high steel bearing strength that has never been seen before. Extremely practical
It will be an excellent metal fixture for steel frame scaffolding.

[Brief description of drawings]

FIG. 1 is an enlarged front view of a usage state of the present embodiment.

FIG. 2 is a perspective view of the present embodiment.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a perspective view of a tightening body according to the present embodiment.

FIG. 5 is an end view of a main portion showing that the flange edge portion of the steel frame of the present embodiment is supported at three points.

[Explanation of symbols]

 1 Steel frame 2 Flange edge 3 Metal fitting base 3A Support upper surface 4 Scaffolding device 5 Scaffold suspension rod 6,7 Tightening body 6A, 7A Opposite tightening taper edge 8 Slide adjusting device 9 Bolt hole 20,21 Projection 20A, 21A Supporting upper surface L facing distance

Claims (1)

[Scope of utility model registration request] 1. A fixing bracket for a steel-framed scaffolding, wherein a metal fitting base is fixed to a flange edge of a steel frame, and a scaffolding suspension rod of a scaffolding device is connected to the metal fitting base to fix the scaffolding device to the steel frame in a suspended state. The protrusions on the left and right upper portions of the metal fitting base so as to face each other, and at least one of the tightening bodies is formed into a shape that engulfs and fits the metal fitting base. It is slidably fitted along the vertical direction, and the opposing edges of both tightening bodies are formed into a C-shaped opposite tightening taper edge with a smaller facing distance toward the upper side. A protrusion for preventing inclination is formed so that the upper surface of the bearing at the tip of the protrusion is spaced from the metal fitting base by a predetermined horizontal distance.
The support upper surface of the protrusion is arranged on the outside of the tightening body,
A metal fitting base is arranged inside the bearing upper surface at a predetermined horizontal interval, and the bearing upper surface is configured to be substantially flush with the bearing upper surface of the metal fitting base. The three-point bearing structure with the opposite tightening taper edges is provided on one side of the metal fitting base, and a slide adjusting device for sliding and moving at least one of the tightening bodies is provided. A plurality of bolt holes for connecting the rods are arranged side by side in the left-right length direction of the metal fitting base, or are formed in the form of long slide holes extending in the left-right length direction of the metal fitting base, and the opposite tightening taper edges of the tightening body are formed by the slide adjusting device. By adjusting the facing distance between the facing tightening taper edges so that the flange edge of the steel frame is clamped between the facing tightening taper edges, and the weight of the scaffolding device is loaded substantially in the center between the facing tightening taper edges. Select the bolt hole or Steel hanging scaffold fixing member, characterized by being configured so as to connect the scaffold Tsu杆 a predetermined position of the bets hole.