JP2852371B2 - Scaffolding plate fixtures for scaffolding equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting device for a scaffold plate in a scaffolding device constructed at a construction site or the like. The mounting device can quickly and easily mount the scaffold plate, and can be used repeatedly even after dismantling the scaffold. Tools.

[0002]

2. Description of the Related Art Conventionally, a scaffolding device constructed at a construction site or the like has a structure in which frames are temporarily provided vertically and horizontally, a scaffold plate is erected on a plurality of horizontal frames, and a plurality of the scaffold plates are spaced from each other. It is well known that they are arranged side by side in the axial direction of the horizontal frame.

In order to fix a scaffold placed on a horizontal frame, a round wire or a band made of soft iron or the like is used, and such a wire is used to bind the scaffold to the horizontal frame. Have been done.

[0004]

In the conventional method of binding a scaffold plate to a horizontal frame with a wire, the work is complicated and takes a long time, and furthermore, unless the wire is completely bent downward, the scaffold plate must be bent. There is a danger that the worker may get caught on the end of the wire protruding upward.

[0005] In dismantling the scaffold, it is necessary to untwist the unwound wire to unwind it, and the work is not only complicated, but the detached wire is bent into a complicated shape, and the original straight line There is a problem that it is not suitable for reuse because it cannot be restored.

[0006]

SUMMARY OF THE INVENTION The present invention is to provide a scaffold mounting for a scaffolding device which has solved the above-mentioned problems. In a scaffolding device comprising a plurality of scaffolding plates erected in the same direction and a plurality of the scaffolding plates arranged side by side in the axial direction of the horizontal frame with a gap therebetween, a fixture for attaching the scaffolding plate to the horizontal frame is provided in the gap. It is composed of an interposed fixing member, a clamp plate superposed on the upper surface of the scaffold plate, and a bolt for fastening the clamp plate to the fixing member so as to be able to advance and retreat, and the fixing member intersects the horizontal frame. A vertical frame,
A lower jaw extending from the lower end of the vertical frame and engaging with the lower surface of the horizontal frame, and a nut positioned above the horizontal frame and fixed near an upper end of the vertical frame; The present invention is characterized in that a horizontal frame and a scaffold plate are sandwiched between the clamp plate and the lower jaw while the clamp plate is fastened to the nut by the bolt.

Further, the present invention is configured as a second means, in which the vertical frame portion of the fixing member extends in the axial direction of the horizontal frame in the direction of tightening and rotating the bolt, and the peripheral portion of the horizontal frame is The surface is provided with a rotation preventing piece which can be freely contacted.

Further, the present invention is configured as a third means, in which the lower jaw portion of the fixing member and the clamp plate are connected around the horizontal frame by a drop-off preventing strip, and the drop-off preventing strip is connected to the lower frame. One or both ends are detachably engaged with one or both of the lower jaw and the clamp plate.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings.

As shown in FIG. 1, in the scaffolding apparatus, vertical and horizontal frames 2 and 3 are horizontally mounted on a large number of support frames 1. Although the assembling portion is not shown, it may be bound by a wire, or may be connected by a connecting fitting having a clamp means.

A scaffold plate 4 is provided on the plurality of horizontal frames 3, 3, and a plurality of scaffold plates, in the illustrated example, three scaffold plates 4a, 4b, and 4c, are provided with a gap 5 therebetween. Are arranged side by side in the axial direction of the horizontal frame 3.

The above is a known scaffolding device. The scaffolding plate 4 may be made of either wood or steel. The scaffolding plate 4 is removably attached to the horizontal frame 3 by the fixture 6 of the present invention. It is possible.

As shown in FIG. 2, the fixture 6 includes a fixing member 7 interposed in the gap 5, a clamp plate 8 superposed on the upper surface of the scaffold plate 4, and the clamp plate 8 7
And a headed bolt 9 for fastening to the front and rear.

The fixing member 7 is formed by press-punching a thick metal plate to form a vertical frame 10 intersecting the horizontal frame 3 and a lower surface of the horizontal frame 3 extending from a lower end of the vertical frame 10. A lower jaw 11 to be locked, and an upper jaw 12 extending from the upper end of the vertical frame 10 and positioned above the horizontal frame 3
And a nut 13 is fixed to the upper jaw 12. At the time of molding with the metal plate, a rib 14 extending from the vertical frame portion 10 to the lower jaw portion 11 is formed. The rib 14 has a substantially U-shaped cross section from one side to the other side.
It is formed by deforming into a letter shape.

The vertical frame portion 10 is provided with a rotation preventing piece 15 which extends in the axial direction of the horizontal frame 3 in the tightening rotation direction of the bolt 9 and which can freely contact the peripheral surface of the horizontal frame 3. Yes,
In the case of the illustrated example, the rotation preventing piece 15 is provided by bending the tongue piece formed integrally at the same time in forming the fixing member 7 from the metal plate in the horizontal direction. May be fixed by welding or the like.

The lower jaw 11 forms an arc-shaped locking edge 16 along the outer peripheral surface of the horizontal frame 3 made of a metal pipe, and a locking hole 17 is opened in the vicinity of the tip of the lower jaw 11. doing.

In order to fix the nut 13 to the upper jaw 12 so as not to rotate, a metal auxiliary plate 18 is superposed on the upper jaw 12 and fixed by welding or the like. The tubular portion 19 is formed by bending in a direction away from each other, and the nut 13 is accommodated in the tubular portion 19. In the case of the illustrated example, the cylindrical portion 19 includes upper and lower cylindrical portions 19a, 1
9b, the nut 13 is clamped between the nuts 9b, and the nut 13 is non-rotatably held by the rotation preventing portion 20 of the nut 13. In the illustrated embodiment, the upper jaw 12 having the cylindrical portion 19 extends in the same direction as the lower jaw 11 from the vertical frame 10 in order to dispose the nut 13 immediately above the locking edge 16. However, the upper jaw 12 may be extended so as to face the opposite side of the lower jaw 11. In addition, such an upper jaw 1
The nut 13 may be fixed to the upper end of the vertical frame portion 10 by welding or the like without providing the nut 2. In short, the nut 13 may be fixed to the vicinity of the upper end of the vertical frame portion 10.

The clamp plate 8 is prepared in two types: a clamp plate 8a for co-tightening and a clamp plate 8b for single tightening. Each of the clamp plates 8a and 8b is used in combination with the fixing member 7 having the same configuration. However, as shown in FIG. 1, the clamp plates 8a for co-fastening are provided on the adjacent scaffold plates 4a, 4b and 4b. , 4c, while the clamp plate 8b for single tightening is overlapped on the side edges of the scaffold plates 4a, 4c arranged side by side.

For this reason, as shown in FIG. 2, the clamp plate 8a for fastening together has both wings 22, 22 extending to both sides from a bolt through hole 21 opened in the center. still,
The clamp plate 8a is provided with a pair of ribs 23, 23 across the wing portions 22, 22 with a bolt through hole 21 interposed therebetween.
4, 24 are open.

On the other hand, the clamp plate 8b for single tightening has a single wing portion 22 extending only to one side from the bolt through hole 21 and a holding portion which is bent substantially in an L shape and extends downward on the other side. A piece 25 is provided, and an arc edge 26 is formed on the lower edge of the holding piece 25 along the periphery of the horizontal frame 3. still,
The clamp plate 8b has a pair of ribs 23 extending from the wing portion 22 to the holding piece 25 with a bolt through hole 21 interposed therebetween. 24, 24 are established.

The clamp plate 8a for co-tightening or the clamp plate 8b for single tightening is set in combination with the fixing member 7, and the bolt through hole 2 of the clamp plate 8 (8a, 8b) is set.
The bolt 9 is inserted through a spring washer 9 a into the nut 1, and the bolt 9 is screwed into the nut 13. At this time, the shaft end 9b of the bolt 9 inserted from the nut 13 is screwed by a swollen portion or a cut groove so that the fixing member 7, the clamp plate 8 and the bolt 9 are set inseparably. It is preferable to form a non-screwable portion by the thread splitting portion.

Further, in order to prevent the attachment 6 from dropping during the attachment operation, a drop-off preventing strip 27 for connecting the lower jaw 11 of the fixing member 7 and the clamp plate 8 is provided. The falling-off prevention strip 27 is made of a bendable strip such as a chain or a string, and has detachable means 28 and 29 at both ends from spring hooks or the like. One attachment / detachment means 2
8 is detachably locked in a locking hole 17 of the fixing member 7,
The other attaching / detaching means 29 is detachably engaged with the engaging hole 24 of the clamp plate 8. Therefore, both ends of the drop-preventing strip 27 are detachable from the fixing member 7 and the clamp plate 8, respectively. However, at least one end of the drop-preventing strip 27 is detachable from the fixing member 7 or the clamp plate 8. The other end may be arbitrarily connected to the clamp plate 8 or the fixing member 7 so as to be detachable.

FIG. 3 shows a state in which the scaffold plate 4 is mounted and fixed to the horizontal frame 3 by using a mounting member 6 composed of a combination of a clamp plate 8a and a fixing member 7 for fastening together. , Scaffold plates 4a, 4b or 4 adjacent to each other
b, 4c. When the scaffold plate 4 is attached, at least one of the attachment / detachment means 28 or 29 is detached from the locking hole 17 or 24 of the drop-off preventing strip 27. Then, with the bolt 9 loosened, the fixing member 7 is inserted into the gap 5 to lock the lower jaw 11 on the lower surface of the horizontal frame 3 and the clamp plate 8a to the scaffold plate 4a,
4b or 4b, 4c, and in a state of being overlapped, the drop-prevention strip 27 is placed on the opposite side of the vertical frame portion 10 to the horizontal frame 3.
, And the attachment / detachment means 28 or 29 is locked in the locking hole 17 or 24. As a result, the fixing member 7 and the clamp plate 8a are connected around the horizontal frame 3 by the drop-off preventing strips 27, so that the lower jaw 11 of the fixing member 7 comes off the horizontal frame 3 and the clamp plate 8a Gap 5
Even if it falls off inside, there is no danger that the fixture 6 will fall down and cause a personal injury or the like. Next, when the bolt 9 is tightened, the horizontal frame 3 and the scaffold plate 4 are firmly clamped between the lower jaw 11 and the clamp plate 8a, and the mounting state of the scaffold plate 4 is obtained. At this time, the fixing member 7 tends to rotate and deviate following the rotation of the bolt 9, but the rotation preventing piece 15 abuts on the peripheral surface of the horizontal frame 3 to prevent such rotation and deviation. Since this is prevented, the bolt 9 can be strongly fastened.

FIG. 4 shows a state in which the scaffold plate 4 is mounted and fixed to the horizontal frame 3 using a mounting tool 6 composed of a combination of a clamp plate 8b for single tightening and a fixing member 7. Is superposed on the scaffold plate 4a or 4c located at the side end. When attaching the scaffold plate 4, the strip 2 for preventing falling off
In 7, at least one of the attaching / detaching means 28 or 29 is detached from the locking hole 17 or 24. Therefore, with the bolt 9 loosened, the fixing member 7 is inserted into the gap 5 to lock the lower jaw 11 on the lower surface of the horizontal frame 3 and
With the clamp plate 8b straddling the scaffold plate 4a or 4c and being overlapped, the falling-off prevention strip 27 is passed around the horizontal frame 3 on the opposite side of the vertical frame portion 10, and
8 or 29 is locked in the locking hole 17 or 24. As a result, the fixing member 7 and the clamp plate 8b are connected around the horizontal frame 3 by the drop-off preventing strips 27, so that the lower jaw 11 of the fixing member 7 comes off the horizontal frame 3 and the clamp plate ba is Even if it falls off from the scaffold plate 4a or 4c, there is no danger that the fixture 6 will fall downward and cause a personal injury or the like. Next, when the bolt 9 is tightened, the horizontal frame 3 and the scaffold plate 4a or 4c are firmly clamped between the lower jaw 11 and the clamp plate 8b, and the scaffold plate 4a or 4c
Is obtained. At this time, the fixing member 7 tends to rotate and deviate following the rotation of the bolt 9, but the rotation preventing piece 15 abuts on the peripheral surface of the horizontal frame 3 to prevent such rotation and deviation. Since this is prevented, the bolt 9 can be strongly fastened. The holding piece 25 of the clamp plate 8b is
Therefore, the scaffold plate 4 a or 4 c can be suitably pressed by the wings 22 without interfering with the upper surface of the horizontal frame 3.

When the scaffold is disassembled after the construction work is completed, the scaffold plate 4 can be detached from the horizontal frame 3 by loosening the bolts 9. Even at the time of this disassembly, if the clamp plate 8 and the lower jaw part 11 are linked by the drop-off prevention strip 27 until the scaffold plate 4 is removed, the attachment 6 is suspended by the horizontal frame 3 and falls. Since there is no such thing, the safety of the worker can be guaranteed.
When the attachment 6 is detached from the horizontal frame 3, at least one of the attachment / detachment means 28 or 29 of the drop-off preventing strip 27 may be detached from the locking hole 17 or 24, and the detached attachment 6 is collected. The collected fixture 6 can be used to attach the scaffold plate at the next opportunity, and is used repeatedly.

[0026]

According to the present invention, when the scaffold plate 4 is attached and fixed to the horizontal frame 3 constituting the scaffold, the lower jaw 11 of the fixing member 7 is locked to the lower surface of the horizontal frame 3 while the clamp is clamped. The horizontal frame 3 and the scaffold plate 4 can be clamped by a simple operation of tightening the bolts 9 in a state where the plate 8 is superimposed on the scaffold plate 4, so that the scaffold plate 4 can be quickly and easily attached. Can be. Then, the upper surface of the scaffold plate 4 after the attachment and fixation is such that the flat clamp plate 8 is overlapped and the head of the bolt 9 is slightly bulged, so that the worker walking on the scaffold plate 4 is There is no danger of falling by catching, and safety can be ensured.

In addition, when disassembling the scaffold, the bolt 9
Since the horizontal frame 3 and the scaffold plate 4 can be disassembled by a simple operation of loosening, and the attachment 6 can be removed, the dismantling operation is also quick and easy, and the attachment 6 collected after removal can be used repeatedly. There is.

According to the second aspect of the present invention, when the bolt 9 is fastened by the attachment 6 to fix the scaffold plate 4 to the horizontal frame 3, it follows the rotation of the bolt 9. Although the fixing member 7 is about to be displaced in rotation, the rotation preventing piece 15 is brought into contact with the peripheral surface of the horizontal frame 3 to prevent the deviation in rotation, so that the bolt 9 can be strongly fastened. This has the effect.

According to the third aspect of the present invention, the horizontal frame 3 is provided between the lower jaw 11 of the fixing member 7 and the clamp plate 8.
Of the scaffold plate 4 by means of the attachment 6 so that the scaffold plate 4
The mounting fixture 6 is hung on the horizontal frame 3 even if there is a mistake in the mounting and fixing work of the scaffold plate 4 or the detaching and removing work of the scaffold plate 4 as well as in the state where it is fixed and fixed. Since it does not fall down at all, there is no danger of a personal injury or the like, which is extremely safe.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a scaffolding device using a fixture of the present invention.

FIG. 2 is an exploded perspective view showing one embodiment of a fixture according to the present invention.

FIGS. 3A and 3B show an embodiment of a fixture in which a clamping plate is set, wherein FIG. 3A is a side view showing a partial cross section of the mounting state, and FIG. 3B is a central longitudinal sectional view of FIG. is there.

FIGS. 4A and 4B show an embodiment of a fixture in which a single clamping clamp plate is set, wherein FIG. 4A is a side view showing a partial cross-sectional view of a mounting state, and FIG. 4B is a central longitudinal sectional view of FIG. is there.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 3 Horizontal frame 4 Scaffolding plate 6 Fixture 7 Fixing member 8 Clamp plate 8a Clamping clamp plate 8b Single clamping clamp plate 9 Bolt 10 Vertical frame 11 Lower jaw 12 Upper jaw 13 Nut 15 Rotation prevention piece 16 Locking edge 19 Tube Shaped part 21 Bolt through hole 22 Wing part 25 Holding piece 27 Strip for preventing falling off

Claims (3)

(57) [Claims] 1. A scaffolding device comprising a plurality of scaffolding plates laid on a plurality of horizontal frames and a plurality of said scaffolding plates arranged side by side in the axial direction of the lateral frames with a gap therebetween. A mounting member mounted on the horizontal frame includes a fixing member interposed in the gap, a clamp plate superimposed on the upper surface of the scaffold plate, and a bolt for fastening the clamp plate to the fixing member so as to be able to advance and retreat. The fixing member, a vertical frame portion intersecting the horizontal frame, a lower jaw portion extending from a lower end of the vertical frame portion and engaging with a lower surface of the horizontal frame; A nut fixedly provided in the vicinity of the upper end of the frame portion, wherein a horizontal frame and a scaffold plate are sandwiched between the clamp plate and the lower jaw in a state where the clamp plate is fastened to the nut by the bolt. A scaffolding device characterized by Scaffolding plate mounting. 2. A vertical frame portion of a fixing member is provided with a rotation preventing piece extending in an axial direction of a horizontal frame toward a tightening rotation direction of a bolt and freely contacting a peripheral surface of the horizontal frame. The mounting device for a scaffold plate in the scaffolding device according to claim 1. 3. A joint between the lower jaw of the fixing member and the clamp plate around the horizontal frame by a drop-preventing strip, and one or both ends of the drop-preventing strip are connected to one or both of the lower jaw and the clamp plate. The scaffolding plate mounting fixture in the scaffolding device according to claim 1, wherein the scaffolding plate is detachably engaged with the scaffold.