KR101197185B1 - fixing device of scaffold board - Google Patents

Abstract

PURPOSE: A scaffold fixture is provided to prevent a worker working on a scaffold from falling down and to enable a worker to simply dismantle a scaffold from a cylindrical pipe. CONSTITUTION: A scaffold fixture comprises a hook member(10), a locking piece(20), and a fixing piece(40). The hook member is composed of a joint portion(11) and a hook portion(12). The joint portion is connected to both ends of a scaffold. The hook portion is protruded frontward from the joint portion and is inserted into a cylindrical pipe(4). The locking piece is rotatably connected to one side of the joint portion and locks the cylindrical pipe to the hook portion. The fixing piece is rotatably connected to one side of the joint portion and fixes or unfixes the cylindrical pipe to/from the hook portion.

Description

Hypothetical Scaffold Fixture {fixing device of scaffold board}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temporary scaffolding fixture, wherein a fastener mounted on both ends of the temporary scaffold is provided with a rotary locking piece for firmly gripping a cylindrical pipe and a rotary fixing piece for fixing the locking piece to the temporary scaffold. The present invention relates to a technology having a structure that prevents the downfall of the worker working in the furnace and easily dismantles the temporary scaffold from the cylindrical pipe.

In general, a temporary scaffold is installed on the outer wall of a building under construction as a scaffold for workers to walk and work on.

In order to install such temporary scaffolds, pipes extending vertically and horizontally are installed on the outer wall of the building, and both ends of the temporary scaffold are connected to horizontal pipes adjacent to each other side by side, and several temporary scaffolds are continuously connected according to the width of the outer wall of the building. Can be installed.

In general, the hook-shaped fasteners are integrally coupled to both ends of the temporary scaffold, and the fasteners are installed over the adjacent horizontal pipes of the outer wall of the building to install the temporary scaffold.

By the way, the fixtures mounted on both ends of the existing temporary scaffold is a structure that spans the horizontal pipe adjacent to each other in the form of a simple hook.

In the state where the operator lands on such a hypothetical scaffold, a work is applied to the outer wall of the building by using a tool to force the outward direction. At this time, the fasteners that span the horizontal pipe are slid to the ends of the horizontal pipe. Because of this, there is a problem that a safety accident frequently falls down the worker working on the temporary scaffold.

In addition, if the fixture of the temporary scaffold is not a structure that firmly grips the horizontal pipe itself, there is also a problem that the hook-shaped fixture over the horizontal pipe is shaken off from the horizontal pipe when the temporary scaffold is swung according to the working environment.

In order to overcome these problems, temporary fixtures and horizontal pipes are temporarily fixed by wires, etc. In this case, it is difficult to completely eliminate the disadvantage of sliding along the length of the horizontal pipe depending on the working environment. Due to the wound wire, the work efficiency of dismantling the fixture from the horizontal pipe at the completion of work is also very low.

The present invention has been proposed in view of the above point, and an object of the present invention is a plurality of fasteners installed at both ends of a temporary scaffold, which is firmly fixed to a cylindrical pipe horizontally installed, and is located below the worker working on the temporary scaffold. It is to provide a temporary scaffolding fixture having a structure that prevents the fall, and is easy to dismantle the temporary scaffold from the cylindrical pipe.

In order to achieve the above object, the fastener according to the present invention is made of a plate, connected to both ends of the temporary scaffolding, and protruded forward from the joint and cut in an arc shape from below to upward to form an outer cylinder. Hook member consisting of a hook portion fitted to the pipe; A locking piece which is made of a plate and closely connected to one side of the joint portion to be rotatable at an angle, and locks the cylindrical pipe to the hook portion naturally by an operation of rotating the cylinder at an angle in the process of fitting the cylindrical pipe to the hook portion. It is configured by.

Locking piece according to the present invention, the body is extended in the vertical direction corresponding to the hook portion, one end portion of the direction adjacent to the hook portion curved in the vertical direction corresponding to the cross-sectional shape of the cylindrical pipe fitted to the hook portion An inner rounding part; An upper protrusion projecting from the upper portion of the inner rounding portion toward the cut portion of the hook portion and being pushed back toward the outer peripheral surface of the cylindrical pipe fitted to the hook portion; The lower part which locks the cylindrical pipe fitted to the hook part from the lower part of the hook part by moving forward from the lower part of the inner rounding part toward the cut-out part of the hook part and proceeding forward in conjunction with the operation of being pushed out by the cylindrical pipe fitted to the hook part. It is configured to include a projection.

The present invention includes a first rivet penetrating the upper portion of the locking piece is fitted to the joint portion, and fixing the locking piece to be rotatable at an angle; A slot portion cut in a predetermined length in the center of the locking piece in a rotational radial direction of the locking piece; It is preferably configured to include a second rivet penetrating through the slot portion is coupled to the joint portion, the second rivet to adjust the rotation angle of the locking piece by engaging the both ends of the slot portion when the locking piece is rotated around the first rivet rotational shaft.

When the locking piece according to the present invention moves the center of gravity according to gravity with the first rivet rotating shaft, one end of the slot in the direction adjacent to the hook is in close contact with the second rivet so that the lower portion of the locking piece is in the opposite direction of the hook position. It is preferable to be configured to be inclined.

The fixing piece according to the present invention is made of a plate, which is closely connected to one side of the joint portion so as to be rotatable side by side with the locking piece, and the cylindrical pipe fitted to the hook portion is in close contact with or is separated from the locking piece while rotating at an angle. It is preferably configured to lock or unlock the locked state.

The present invention further includes a third rivet, wherein the third rivet penetrates through the lower portion of the fixing piece to be fitted to the joint portion, and is preferably configured to fix the fixing piece so as to rotate at an angle.

In the present invention, the other side of the hook portion facing the inner rounding portion is formed of an outer rounding portion curved to correspond to the inner rounding portion, and one end portion of the fixing piece which abuts against the outer rounding portion by a certain angle rotation is curved to correspond to the outer rounding portion. It is preferred to consist of a treated sliding part.

The upper portion of the fixing piece according to the invention is made of a handle portion formed by bending a predetermined portion, the handle portion is configured to allow the user to grip when the fixing piece is rotated by the third rivet rotational shaft.

In the present invention, when the center of gravity according to the gravity is moved to the third rivet pivot axis in the state in which the outer rounding portion and the sliding portion in contact with each other, the upper portion of the fixing piece is preferably configured to be directed in the direction of the outer rounding position.

The present invention penetrates the first rivet, the first washer fitted between the locking piece and the joint; A second washer penetrated through the second rivet and fitted between the locking piece and the joint; The third washer penetrates through the third rivet and is inserted between the fixing piece and the joint portion. The third washer further includes a first washer to prevent rusting of the first washer, the second washer and the third washer. The second washer, the third washer is preferably composed of a non-ferrous metal or a synthetic resin material having a constant elastic force.

The temporary scaffolding fixture according to the present invention has a locking piece that grips the cylindrical pipe firmly while rotating in a constant direction and easily detaches the gripped cylindrical pipe while rotating in the opposite direction, and grips when grip of the cylindrical pipe due to the locking piece. By providing the rotatable fixed piece which locks a state, the fall fall of the worker who works in the state which landed on the upper surface of a temporary scaffold can be prevented, and a temporary scaffold can be disassembled easily from a cylindrical pipe.

1 is a schematic installation state diagram of the temporary scaffolding fixture of the present invention,
2 is a perspective view showing a temporary scaffolding fixture of the present invention,
3 is an exemplary view showing a state before the cylindrical pipe is fitted to the temporary scaffolding fixture of the present invention;
4 is an exemplary view showing a state in which a cylindrical pipe is fitted to the temporary scaffolding fixture of the present invention.
5 is an exemplary view showing a state in which the fixing piece is in close contact with the locking piece in a state in which the cylindrical pipe is fitted to the temporary scaffolding fixture of the present invention.
6 is an exemplary view showing a state in which the cylindrical pipe is separated from the temporary scaffolding fixture of the present invention;
7 is an exemplary view showing a state in which the cylindrical pipe is completely separated from the temporary scaffold fixture of the present invention.

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

1 is a schematic diagram showing the installation state of the temporary scaffolding fixture of the present invention, and only one end of the temporary scaffolding 2 is shown and the two fasteners 1 are fastened to one end thereof. Indicates.

Referring to FIG. 1, a plurality of temporary scaffolding fixtures 1 according to the present invention are mounted at both ends of a temporary scaffolding 2 on which an operator climbs on an upper surface thereof, and the fasteners 1 are used for interior and exterior wall construction of a building. To be fixed across the horizontally cylindrical pipes 4 adjacent to each other in parallel to each other vertically and horizontally.

 2 is a perspective view showing the temporary scaffolding fixture of the present invention, and FIG. 3 is an exemplary view showing a state before the cylindrical pipe is fitted to the temporary scaffolding fixture of the present invention.

2 and 3, the temporary scaffolding fixture 1 according to the present invention comprises a hook member 10, a locking piece 20, a fixing piece 40.

The hook member 10 is formed of a metal plate in the form of a one body having a thickness of approximately 5 to 15 mm, and is connected to both ends of the temporary scaffold 2 and protrudes forward from the joint 11. And it is composed of a hook portion 12 which is cut in the shape of an arch from below to be fitted to the outer cylindrical pipe (4).

The weight of the worker working on the temporary scaffold 2 and the upper surface of the temporary scaffold 2 while the hook member 10 fastened to both ends of the temporary scaffold 2 is fixed across the cylindrical pipe 4. Supported until.

The joint part 11 may be formed by bolting in a state where a part is fitted to the end of the temporary scaffold 2, and may be fastened by welding in contact with the end of the temporary scaffold 2 to maintain a more firm coupling force. have.

Since the cylindrical pipe 4 is fitted to the portion cut in the shape of an arch under the hook part 12, the width to be cut is preferably formed to be sufficiently larger than the outer diameter of the cylindrical pipe 4. Here, the cylindrical pipe 4 installed on the outer wall of the building is determined in general, so that the lower part of the hook part 12 is cut in view of the size of the cylindrical pipe 4.

The locking piece 20 is made of a metal plate and is closely connected to one side of the joint part 11 so as to be rotatable. The locking piece 20 rotates at a predetermined angle in the process of fitting the cylindrical pipe 4 to the hook part 12. By means of which the cylindrical pipe 4 is naturally locked to the hook portion 12.

In order to implement the above operation, the locking piece 20 is configured to include an inner rounding part 21, an upper protrusion part 22, a lower protrusion part 23, a slot part 24, and an outer rounding part 25. .

The inner rounding part 21 has a body extending in the vertical direction corresponding to the hook part 12, and is adjacent to the hook part 12 to correspond to the cross-sectional shape of the cylindrical pipe 4 fitted to the hook part 12. One end of the direction to be curved is curved in the vertical direction. That is, when the cylindrical pipe 4 is fitted to the hook part 12, the inner rounding part 21 naturally operates without being caught by the outer circumferential surface of the cylindrical pipe 4 while the locking piece 20 rotates.

The upper protrusion 22 protrudes from the top of the inner rounding portion 21 toward the cutout portion of the hook portion 12 so as to be pushed back against the outer peripheral surface of the cylindrical pipe 4 fitted to the hook portion 12. It is composed. That is, the locking piece 20 rotates as the upper protrusion 22 comes into contact with the outer circumferential surface of the cylindrical pipe 4 inserted into the hook part 12 and is pushed backwards, and thus the lower protrusion 23 is rotated. Proceeds forward to compress the lower outer peripheral surface of the cylindrical pipe (4) inserted into the hook portion 12 it is possible to firmly fix the cylindrical pipe (4) to the hook portion (12). (See [Figure 4])

The lower protrusion 23 protrudes from the lower portion of the inner rounding portion 21 toward the cutout portion of the hook portion 12 so that the upper protrusion 22 is pushed by the cylindrical pipe 4 into which the hook portion 12 is fitted. Is configured to lock the cylindrical pipe 4 fitted to the hook portion 12 from below the hook portion 12 by moving forward in conjunction with the operation.

Slot portion 24 is made by cutting a predetermined length in the center portion of the locking piece 20 in the rotational radial direction of the locking piece 20, guides the rotation of the locking piece 20 and the rotation angle of the locking piece 20 Will be adjusted.

The outer rounding portion 25 is curved on the other side of the hook portion 12 opposite to the inner rounding portion 21 in correspondence with the inner rounding portion 21, and the outer rounding portion 25 is viewed from below. It will be described in more detail in the operation process for the fixture 1 of the invention.

The fixing piece 40 is made of a metal plate, and is in close contact with the locking piece 20 to be rotatably connected to one side of the joint 11 at a predetermined angle, and close to the locking piece 20 while rotating at an angle. The cylindrical pipe 4 which is detached and fitted to the hook part 12 is fixed or released from the locked state by the locking piece 20.

One end of the fixing piece 40, which is in contact with the outer rounding part 25 by a predetermined angle rotation, includes a sliding part 41 that is curved in correspondence with the outer rounding part 25.

In addition, the fixing piece 40 is provided with a handle portion 42 formed by bending a predetermined portion of the upper portion so that the user can grip when rotating the fixing piece 40 manually.

Meanwhile, the present invention further includes a first rivet 31, a second rivet 32, and a third rivet 33.

The first rivet 31 penetrates the upper portion of the locking piece 20 and is fitted to the joint portion 11 to fix the locking piece 20 to be rotatable at an angle. And the second rivet 32 is fitted through the slot portion 24 to the fitting portion 11, when the locking piece 20 is rotated around the first rivet 31, the slot portion 24 Both ends of the locking piece 20 is adjusted by locking the second rivet 32.

The third rivet 33 penetrates through the lower portion of the fixing piece 40 and is fitted to the joint portion 11 to fix the fixing piece 40 to be rotated at an angle. That is, the third rivet 33 functions as a rotation shaft of the fixing piece 40 which rotates by a predetermined angle.

On the other hand, the present invention includes a first washer (not shown) penetrated by the first rivet 31 and fitted between the locking piece 20 and the joint 11; A second washer (not shown) penetrated by the second rivet 32 and fitted between the locking piece 20 and the fitting portion 11; And a third washer (not shown) penetrating through the third rivet 33 to be fitted between the fixing piece 40 and the fitting portion 11.

Preferably, the first washer, the second washer, and the third washer are made of a non-ferrous metal or a synthetic resin material having a certain elasticity to prevent rusting of the portions that are in contact with the first washer, the second washer, and the third washer, respectively. In this case, the first washer, the second washer, and the third washer may be configured in a one-body form.

3 to 7 are views sequentially showing the operating state when the temporary scaffolding fixture is fixed to the cylindrical pipe, according to the present invention with reference to [3] to [7]. The operation state of the hypothesis scaffolding fixture according to the following will be described sequentially (see FIG. 1).

First, [FIG. 3] is an exemplary view showing a state before the cylindrical pipe is fitted to the temporary scaffolding fixture of the present invention. As shown in FIG. 3, the fastener 1 installed at both ends of the temporary scaffolding 2 is The hook part 12 is fastened so that it may face downward. In this state, the cylindrical pipe 4 is fitted from below to upward. The lock piece 20 of the fastener 1 is normally moved to gravity by the rotation shaft before the cylindrical pipe 4 is fitted. When the center of gravity moves accordingly, one end of the slot 24 in the direction adjacent to the hook 12 is in close contact with the second rivet 32 so that the lower portion of the locking piece 20 is opposite to the position of the hook 12. Are oriented in a direction.

As a result, the cut portion of the hook portion 12 is completely opened so that the cylindrical pipe 4 fits naturally from the bottom. Here, reference numeral L1 in FIG. 3 denotes a reference line of the first rivet 31, which is the rotation shaft of the locking piece 20. As shown in FIG.

At this time, the fixing piece 40 is fixed across the stopper 3 provided on one side of the joint portion 11 in a counterclockwise rotation state, and represents a state that does not interfere with the locking piece 20. The rotation of 40 is manually adjusted by the operator.

4 is an exemplary view showing a state in which the cylindrical pipe is fitted to the temporary scaffold fixture of the present invention, as shown in (a) of FIG. 4, the cylindrical pipe 4 enters the hook portion 12. As the upper portion of the outer circumferential surface of the cylindrical pipe 4 is in contact with the upper protrusion 22, the upper protrusion 22 is pushed backward, thereby pushing the first rivet 31 to the locking piece 20 by the rotation shaft. The rotational force is applied and the lower protrusion 23 receives the force to move forward.

As a result, as shown in (b) of FIG. 4, the lower protrusion 23 continues to the front of the hook part 12 to compress and fix the cylindrical pipe 4 from the bottom of the cylindrical pipe 4. At this time, as the weight is increased from the upper side of the temporary scaffold 2 due to the weight of the operator, the fastener 1 generates a compressive force downward, and the upper and upper protrusions 22 of the outer circumferential surface of the cylindrical pipe 4 mutually It is engaged with a stronger force, and in conjunction with this, the lower protrusion 23 presses and fixes the cylindrical pipe 4 more strongly from the bottom.

When the cylindrical pipe 4 is fixed by the locking piece 20 in a state in which the cylindrical pipe 4 is fitted in the hook 12, the fastener 1 may be firmly gripped without slipping along the longitudinal direction of the cylindrical pipe 4.

FIG. 5 is an exemplary view illustrating a state in which a fixing piece is in close contact with a locking piece in a state where a cylindrical pipe is fitted into a temporary scaffold fixture of the present invention, and as shown in FIG. 4) When the locking piece 20 is rotated in a structure that compresses and secures the cylindrical pipe 4 in a fully inserted state, the operator manually rotates the fixing piece 40 to rotate the outer side of the locking piece 20 ( 25 and the sliding portion 41 of the fixing piece 40 is fixed to engage.

 At this time, in the state in which the outer rounding portion 25 and the sliding portion 41 in contact with each other, the upper portion of the fixing piece 40 when the fixing piece 40 moves the third rivet 33 to the rotation axis by the gravity center of gravity. Is configured to be oriented in the direction of the outer rounded portion 25 position. As a result, the outer rounding part 25 of the locking piece 20 and the sliding part 41 of the fixing piece 40 can be naturally maintained. Reference numeral L2 in FIG. 5 denotes a reference line of the third rivet 31, which is the rotation shaft of the fixing piece 40. As shown in FIG.

In addition, the outer rounding part 25 and the sliding part 41 are engaged with each other so that the outer rounding part 25 of the locking piece 20 and the sliding part 41 of the fixing piece 40 can be naturally engaged. It is preferable to be curved.

FIG. 6 is an exemplary view showing a state in which the cylindrical pipe is separated from the temporary scaffolding fixture of the present invention, and FIG. 6A illustrates the fixing piece 40 by rotating the fixing piece 40 in a clockwise direction. And the state immediately before releasing the temporary scaffold 2 in the state which and the locking piece 20 do not mutually interfere.

FIG. 6 (b) shows that when the worker lifts up the temporary scaffold 2, the locking piece 20 rotates the first rivet 31 naturally in a counterclockwise direction in a counterclockwise direction, and then the cylindrical pipe from the hook portion 12. FIG. (4) shows deviation.

7 is an exemplary view showing a state in which the cylindrical pipe is completely separated from the temporary scaffold fixture of the present invention.

Before the cylindrical pipe 4 is fitted, the locking piece 20 of the fastener 1 is normally slotted in a direction adjacent to the hook portion 12 by moving the center of gravity due to gravity by using the first rivet 31 as a rotation axis. One end of the portion 24 is in close contact with the second rivet 32 so that the lower portion of the locking piece 20 is inclined in the direction opposite to the position of the hook portion 12.

This results in the cut-out portion of the hook portion 12 being fully reopened, thus leaving a standby state in which the cylindrical pipe 4 can naturally fit back from the bottom of the hook portion 12. Reference numeral L1 in FIG. 7 denotes a reference line of the first rivet 31, which is the rotation shaft of the locking piece 20. As shown in FIG.

1: Fixture according to the present invention 2: Hypothetical scaffold
3: stopper 4: cylindrical pipe
10 hook member 11: joint
12: hook portion 20: locking piece
21: inner rounded portion 22: upper protrusion
23: lower protrusion 24: slot
25: outer rounding part 31: first rivet
32: second rivet 33: third rivet
40: fixed piece 41: sliding part
42: handle portion L1, L2: center line

Claims (11)

It consists of a plate, which is connected to both ends of the temporary scaffold 11 and the hook portion 12 protruding forward from the joint and cut in an arc shape from below to upward to fit into an external cylindrical pipe. Hook member 10 is configured;
In response to the hook portion, the body is extended in the vertical direction long, made of a plate closely connected to one side rotatably at an angle, the operation of rotating a certain angle in the process of fitting the cylindrical pipe to the hook portion The inner rounding portion 21 is a cylindrical pipe is naturally locked to the hook portion, one end portion of the direction adjacent to the hook portion is curved in the vertical direction to correspond to the cross-sectional shape of the cylindrical pipe fitted to the hook portion And an upper protrusion 22 projecting from the upper portion of the inner rounding portion toward the cut portion of the hook portion and being pushed back toward the outer circumferential surface of the cylindrical pipe fitted to the hook portion, and the hook from the lower portion of the inner rounding portion. Protrudes toward the incised portion of the portion such that the upper projection is fitted to the hook portion The lower protrusion 23 which locks the cylindrical pipe fitted to the hook portion from the lower side of the hook portion by proceeding forward in conjunction with the operation pushed out by the cylindrical pipe, and the slot portion cut in a predetermined length in the center in the rotational radial direction ( A locking piece 20 having 24;
A first rivet 31 inserted through the upper part of the locking piece to be coupled to the joint part, and fixing the locking piece to be rotatable at an angle, and operating as a rotation shaft when the locking piece is moved by a gravity center of gravity; ;
The locking piece is fitted to the joint part through the slot part, and when the locking piece is rotated around the first rivet by the rotational shaft, the locking piece is adjusted at both ends of the slot part to adjust the rotation angle of the locking piece. When the center of gravity due to gravity is moved to the rotation axis, the second rivet 32 is in close contact with one end of the slot portion in the direction adjacent to the hook portion so that the lower portion of the locking piece is oriented in the opposite direction of the hook portion position );
Hypothesis scaffolding fixture configured to include.
delete delete delete The method according to claim 1,
It is made of a plate and is in close contact with one side of the joint portion rotatably close to the locking piece, and the cylindrical pipe fitted to the hook portion is locked or locked by the locking piece while being in close contact with or detached from the locking piece while rotating a certain angle. Temporary scaffolding fixture characterized in that it further comprises a fixing piece 40 for fixing or releasing the state.
The method according to claim 5,
Temporary scaffolding fixture characterized in that it further comprises a third rivet (33) penetrating the lower portion of the fixing piece to be coupled to the joint portion, the fixing piece rotatably fixed to a certain angle.
The method of claim 6,
The other side portion of the hook portion facing the inner rounding portion is formed of an outer rounding portion 25 curved to correspond to the inner rounding portion, and one end of the fixing piece which contacts the outer rounding portion by a predetermined angle rotation is A temporary scaffolding fixture comprising a sliding part 41 which is curved to correspond to the outer routing part.
The method of claim 7,
Hypothesis scaffolding fixture characterized in that it further comprises a handle portion (42) formed by bending a certain upper portion of the fixing piece so that the user grips when the fixing piece rotates with the third rivet rotational shaft.
The method according to claim 8,
The upper portion of the fixing piece is configured to be directed in the direction of the outer rounding part position when the center of gravity according to gravity moves the third rivet to the pivot axis in the state in which the outer rounding portion and the sliding portion abut each other. Hypothesis scaffold fixture.
The method according to claim 9,
A first washer penetrating the first rivet and fitted between the locking piece and the joint portion;
A second washer penetrated by the second rivet and fitted between the locking piece and the joint portion;
A third washer penetrated through the third rivet and fitted between the fixing piece and the joint portion;
Hypothesis scaffolding fixture, characterized in that further comprises.
The method of claim 10,
The first washer, the second washer, and the third washer is made of a non-ferrous metal or a synthetic resin material having a certain elasticity to prevent the rust of the portions in contact with the first washer, the second washer, the third washer, respectively. Hypothesis scaffold fixture.

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