JP6091212B2 - Wedge attaching / detaching mechanism, wedge attaching / detaching tool, and wedge attaching / detaching method using the same - Google Patents

Description

  The present invention uses, for example, a wedge attaching / detaching mechanism, a wedge attaching / detaching tool, and a wedge attaching / detaching tool for attaching / detaching a wedge in a wedge-binding scaffold that is assembled at a construction site or the like and uses a wedge for fixing a support and a horizontal member. The present invention relates to a method for attaching and detaching a wedge.

  Conventionally, in construction sites where renovations and repair work (painting, tiling, waterproofing repairs, crack repairs, etc.) of condominiums, etc. are carried out, there are temporary scaffolds for workers to work at heights around buildings. Assembled. As a temporary scaffold, for example, a wedge-tight scaffold in which a wedge is used when connecting members is known (see, for example, Patent Document 1).

  FIG. 8 is a partial perspective view showing a state in which the horizontal member 22 is attached to the support column 21 in the conventional wedge-binding scaffold. According to the figure, the support column 21 is provided with a plurality of flanges 23 at predetermined intervals, and the flange 23 is formed with a plurality of flange holes 24. One end of the horizontal member 22 is fitted and attached to any one of the plurality of flange holes 24.

  The horizontal member 22 includes a cylindrical pipe member 25, connecting members 26 provided at both ends thereof, and a wedge 27 for connecting the connecting member 26 and the flange 23. The connecting member 26 is formed in a substantially alligator shape in a side view. That is, the connecting member 26 has a side opening 28 formed on the side surface on the support column 21 side, an upper surface opening 29 for inserting the wedge 27 formed on the upper surface thereof, and the inserted wedge 27 protruded on the lower surface thereof. A lower surface opening 30 (see FIG. 9) is formed. The side surface opening 28, the upper surface opening 29, and the lower surface opening 30 are communicated with each other inside the connecting member 26.

  The wedge 27 is formed in a long shape, and a wide hitting portion 27a hitting with a hammer 32 (described later) or the like is formed at an upper end portion thereof. Further, a protrusion 31 protruding in the width direction is formed at the lower end of the wedge 27.

  In the above configuration, when the horizontal member 22 is fixed to the support column 21 at the time of assembling the wedge-binding scaffold, the side opening 28 of the connecting member 26 is applied to the flange 23 as shown in FIG. Next, as shown in FIG. 9, the wedge 27 is inserted into the upper surface opening 29 and the flange hole 24 of the flange 23, and the tip is protruded from the lower surface opening 30 of the connecting member 26. Thereafter, by hitting the hitting portion 27 a with, for example, a hammer 32, the wedge 27 is firmly bonded to the flange hole 24, whereby the horizontal member 22 is fixed to the column 21. Further, when removing the horizontal member 22 from the support column 21, the lower end of the wedge 27 tightly coupled to the flange hole 24 is hit with a hammer 32.

  However, in such a wedge-tight scaffold, when the horizontal member 22 is fixed to the column 21 or when the horizontal member 22 is removed from the column 21, the wedge 27 is struck with a hammer 32 or the like, so that the noise is large. For example, when the temporary scaffold is in a residential area, there are problems such as complaints from neighboring residents. Further, since the wedge 27 is driven firmly, there is a problem that the member is easily damaged.

  Further, in order to firmly fix the horizontal member 22 to the support column 21, the wedge 27 must be driven firmly into the flange hole 24, and a certain striking force is required. For this reason, when the amount of the wedge 27 to be attached is increased, there is a problem that the worker requires a great amount of labor.

JP-A-6-280404

  The present invention has been conceived under the circumstances described above, and provides a wedge attaching / detaching mechanism and a wedge attaching / detaching tool capable of easily connecting and removing the wedge to and from the flange without using a hammer or the like. The task is to do. Another object of the present invention is to provide a wedge attaching / detaching method using the wedge attaching / detaching tool.

The wedge attachment / detachment mechanism provided by the first aspect of the present invention includes a substantially plate-like flange provided on a support column for constructing a temporary scaffold , and a long and cylindrical shape having one end connected to the flange. A horizontal member, a wedge that is inserted into a flange hole of the flange while penetrating one end portion of the horizontal member from above, and a wedge attaching / detaching tool having a long main body, the wedge attaching / detaching tool, A hook portion provided at one end of the main body and hooked by a protrusion formed on the wedge and functioning as an action point, and provided near the center of the main body and against the circular surface of the horizontal member. A convex portion that is in contact with each other and functions as a fulcrum, and a force point portion that is provided at the other end of the main body and functions as a force point, and the convex portion follows the circular surface of the horizontal member. Taper that narrows toward the inside It made is and, by pressing the power point portion, the wedge together to displace the hooking portion in the fulcrum the convex portion is in contact with the circular surface of the horizontal member in a direction opposite to the pressing direction Is displaced in the opposite direction, whereby the wedge is fastened to the flange hole to fix the horizontal member to the column, or the wedge is loosened from the flange hole to remove the horizontal member from the column. It is characterized by.

In the wedge attaching / detaching mechanism of the present invention, the latching portion is latched by a first protrusion formed at a lower end portion of the wedge, the convex portion is brought into contact with a lower surface of the horizontal member, and the force point portion Is pressed toward the horizontal member side to displace the hooking portion in the direction opposite to the pressing direction with the convex portion in contact with the lower surface of the horizontal member as a fulcrum, and the wedge in the opposite direction. It is preferable that the horizontal member is fixed to the support column by moving the wedge to the flange hole.

In the wedge attaching / detaching mechanism of the present invention, the latching portion is latched by a second protrusion formed on the upper end portion of the wedge, the convex portion is in contact with the upper surface of the horizontal member, and the force point portion To the horizontal member side, the hooking portion is displaced in the direction opposite to the pressing direction with the convex portion abutting on the upper surface of the horizontal member as a fulcrum, and the wedge is moved in the opposite direction. It is preferable that the horizontal member is removed from the column by relaxing the wedge from the flange hole.

The wedge attaching / detaching tool provided by the second aspect of the present invention includes a substantially plate-like flange provided on a support column, a long and cylindrical horizontal member having one end connected to the flange, A wedge attaching / detaching tool for use in a temporary scaffold comprising a wedge that is inserted into a flange hole of the flange while tightly penetrating one end of a horizontal member from above, and has a long main body and one end of the main body And a hook that is hooked to a first protrusion formed at the lower end of the wedge and functions as an action point, and is provided near the center of the main body and contacts the lower surface of the horizontal member. A convex portion that is in contact with each other and functions as a fulcrum, and a force point portion that is provided at the other end of the main body and functions as a force point, and the convex portion extends along the circular surface of the horizontal member. A taper that narrows toward the inside is formed Is and, by pressing the power point portion, the said wedge the hook portion in the fulcrum the convex portion is in contact with the lower surface of the horizontal member with displacing in the direction opposite to the pressing direction The horizontal member is fixed to the support column by displacing the wedge in the opposite direction, thereby fastening the wedge to the flange hole.

In the wedge attaching / detaching tool according to the present invention, the latching portion is latched by a second protrusion formed on an upper end portion of the wedge, the convex portion is brought into contact with an upper surface of the horizontal member, and the force point portion Is pressed to displace the hooking portion in the direction opposite to the pressing direction and the wedge in the opposite direction with the convex portion in contact with the upper surface of the horizontal member as a fulcrum. The wedge may be loosened from the flange hole by removing the horizontal member from the column.

The wedge attaching / detaching method provided by the third aspect of the present invention includes a substantially plate-like flange provided on a support column, a long and cylindrical horizontal member having one end connected to the flange, A wedge attaching / detaching method for use in a temporary scaffold comprising a wedge that is inserted into a flange hole of the flange while tightly penetrating one end of a horizontal member from above, and a wedge attaching / detaching tool having a long body Prepare one end of the main body on the first protrusion formed on the lower end of the wedge as an action point, and it is formed closer to the center of the main body and extends along the circular surface of the horizontal member. A convex portion formed in a side view with a taper that narrows toward the surface is brought into contact with the lower surface of the horizontal member as a fulcrum, the other end of the main body is used as a force point, and the other end of the main body is pressed. Accordingly, contact of the lower surface of the horizontal member The convex portion of the wedge with in the fulcrum to displace the one end portion of the body in the direction opposite to the pressing direction is displaced in the opposite direction, whereby said horizontal member by Tightened the wedge into the flange holes Is fixed to the column.

In the wedge attaching / detaching method of the present invention, one end portion of the main body is hooked on a second protrusion formed on the upper end portion of the wedge as an action point, and the convex portion is brought into contact with the upper surface of the horizontal member. Using the other end of the main body as a force point and pressing the other end of the main body, the one end of the main body is used as a fulcrum by using the convex portion that is in contact with the upper surface of the horizontal member as a fulcrum. The horizontal member may be removed from the column by displacing the wedge in the opposite direction to the pressing direction and displacing the wedge in the opposite direction, thereby loosening the wedge from the flange hole.

  According to the present invention, the horizontal member is fixed to the column by the so-called lever principle using the wedge attaching / detaching tool. That is, by pressing the force point portion of the wedge attaching / detaching tool, the hook portion hooked on the first protrusion of the wedge is displaced in the direction opposite to the pressing direction with the convex portion serving as a fulcrum, and the wedge is in the opposite direction. It is displaced to. Thereby, the wedge is tightly connected to the flange hole, and the horizontal member is fixed to the support column. Therefore, unlike the conventional configuration, it is not necessary to use a hammer or the like for binding the wedge, and the horizontal member can be easily fixed to the support column with a small force. Therefore, it is possible to eliminate the problem of noise and member damage caused by hitting a hammer or the like, and it is possible to reduce the labor of an operator caused by hitting the hammer or the like.

  Further, according to the present invention, even when the horizontal member is removed from the support column, by pressing the power point portion of the wedge attaching / detaching tool, the protruding portion is used as a fulcrum, and the hook portion is hooked on the first protrusion of the wedge. Is displaced in the direction opposite to the pressing direction, and the wedge is displaced in the opposite direction. As a result, the wedge relaxes from the flange hole, and the horizontal member is removed from the column. Therefore, even when the horizontal member is removed from the support column, it is not necessary to use a hammer or the like as in the conventional configuration, and the problem of noise and damage to members can be solved.

It is a fragmentary perspective view of the temporary scaffold to which the wedge attachment / detachment mechanism according to the present invention is applied. It is a partial side view of a temporary scaffold. It is an external view of a wedge attachment / detachment tool, (a) shows a front view, (b) shows a side view, (c) shows a plan view. It is a partial side view which shows a state when attaching a horizontal material to a support | pillar. It is a partial side view which shows a state when attaching a horizontal material to a support | pillar. It is a partial side view which shows the state when a wedge is fastened to a flange, (a) shows the state before fastening, (b) shows the state after fastening. It is a partial side view which shows the state when removing a wedge from a flange, (a) shows the state before removing, (b) shows the state after removing. It is a fragmentary perspective view which shows the state in which a horizontal material is attached to a support | pillar in the conventional wedge binding type | formula scaffold. It is a partial side view which shows the state in which a horizontal member is attached to the conventional support | pillar.

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

  FIG. 1 is a partial perspective view of a temporary scaffold to which a wedge attaching / detaching mechanism according to the present invention is applied. FIG. 2 is a partial side view of the temporary scaffold. FIG. 3: is an external view of a wedge attachment / detachment tool, (a) shows a front view, (b) shows a side view, (c) shows a top view.

  The temporary scaffold in the present embodiment is a so-called wedge-tight scaffold used at a construction site or the like, and a plurality of columns 1 as shown in FIG. 1 are erected. In general, a plurality of support columns 1 are provided to extend in the vertical direction at predetermined intervals along the outer surface of a building (not shown). A horizontal member 2 for supporting each column 1 is connected and fixed between the plurality of columns 1.

  Each support column 1 is provided with a plurality of flanges 3 at predetermined intervals in the vertical direction. In each flange 3, for example, four retaining holes 4 are formed to connect the horizontal member 2 in four directions. In order to fix one end portion of the horizontal member 2, a wedge 7 which will be described later is fastened to these retaining holes 4.

  The horizontal member 2 is supported by the cylindrical pipe member 5, the connecting members 6 provided at both ends of the pipe member 5 (only one end is shown in FIG. 1), and penetrates into the inside thereof. And the wedge 7 formed. The pipe member 5 is formed in a hollow shape, and the diameter of the pipe member 5 is, for example, about 42.7 mm.

  The connecting member 6 is for hooking the horizontal member 2 to the flange 3 of the column 1. The connecting member 6 has a substantially cylindrical shape as a whole, the support 1 side is formed in a substantially alligator shape, and a side opening 8 is formed so as to expand in the vertical direction toward the support 1 in a side view. Has been. The connecting member 6 has a space formed therein, and the side opening 8 communicates with the space.

  In the side opening 8, the opening height H <b> 1 (see FIG. 2) on one side and the other side is set to be slightly larger than the thickness of the flange 3 of the column 1. The connecting member 6 can sandwich the flange 3 from above and below by the side opening 8.

  As shown in FIG. 1, the connecting member 6 is formed with an upper surface opening 9 extending on the upper surface from the vicinity of the support column 1 side to the peripheral end on the pipe member 5 side. The width of the upper surface opening 9 (width in the depth direction) is slightly larger than the thickness of the wedge 7. The connecting member 6 has a lower surface opening 10 (see FIG. 2) whose lower surface extends from the vicinity of the support column 1 side to the peripheral end on the pipe member 5 side. The width of the lower surface opening 10 on the pipe member 5 side is also slightly larger than the thickness of the wedge 7.

  The wedge 7 is formed in a vertically long substantially flat plate shape, and is formed in a substantially mountain shape so that the right side surface of the main body in FIG. The wedge 7 is formed such that its lower end is slightly curved in the right direction in FIG. In the vicinity of the lower end of the wedge 7, a first protrusion 7 a that protrudes both in the front direction and the depth direction is formed. The wedge 7 is prevented from being pulled upward through the upper surface opening 9 by the first protrusion 7a.

  The wedge 7 has a second protrusion 7b formed at its upper end that is wider in the depth direction than the central portion of the main body. The wedge 7 is hooked by the second protrusion 7 b at the periphery of the upper surface opening 9 so that the entire wedge 7 does not enter the inside of the connecting member 6 through the upper surface opening 9.

  In this embodiment, when the horizontal member 2 is fixed to the column 1 and when the horizontal member 2 is removed from the column 1, the wedge attaching / detaching tool 11 is used as shown in FIG. 3. The wedge attaching / detaching tool 11 uses the principle of the lever to draw the wedge 7 downward with respect to the connecting member 6 to be fastened to the flange hole 4 or to move the wedge 7 upward with respect to the connecting member 6 to thereby open the flange hole. 4 is relaxed.

  The wedge attaching / detaching tool 11 includes a main body 12 formed in a long shape and a pair of sandwiching portions 13 provided so as to sandwich the vicinity of one end portion of the main body 12 from both sides.

  As shown in FIG. 3B, the other end side of the main body 12 is slightly bent to form a bent portion 16, and this bent portion 16 is a force point at which an operator applies a pressing force as will be described later. Function as. The bent portion 16 corresponds to a “power point portion” described in the claims.

  The sandwiching portion 13 is formed such that the tip extends from one end of the main body 12 and is formed in a substantially hawk beak shape in a side view. A lower end of the tip of the sandwiching portion 13 is a latching portion 14 formed in a concave arcuate shape, and the latching portion 14 has a second projection 7b or a first projection 7a of the wedge 7 as will be described later. Is hooked. In addition, this latching part 14 functions as an action point.

  An upper end of the sandwiching portion 13 is a convex portion 15 formed in a gentle convex shape in a side view. As will be described later, the circular surface of the horizontal member 2 is brought into contact with the convex portion 15. As shown in FIG. 3A, the upper surface of the convex portion 15 is formed with a taper that becomes narrower toward the inside along the circular surface of the horizontal member 2. The convex portion 15 functions as a fulcrum. In this case, since the convex portion 15 is tapered, the wedge attaching / detaching tool 11 can be reliably supported by the horizontal member 2. Further, the sandwiching portion 13 is provided integrally with the main body 12, but may be a separate body from the main body 12.

  Next, a procedure for fixing the horizontal member 2 to the column 1 in the wedge attaching / detaching mechanism according to the present embodiment will be described.

  First, when fixing the horizontal member 2 to the support column 1, the operator supports the wedge 7 with the upper surface opening 9 of the connecting member 6 in an oblique direction with respect to the horizontal member 2 as shown in FIG. 4. Thereby, since the side surface opening 8 is released, the connecting member 6 is moved to the flange 3 side of the support column 1 in this state (see arrow A in FIG. 4), and the connecting member 6 is hooked on the flange 3. At this time, the first protrusion 7 a of the wedge 7 is held inside the upper surface opening 9 of the connecting member 6, so that the wedge 7 does not come out of the connecting member 6.

  Next, the operator holds the second protrusion 7b of the wedge 7 and supports it so as to extend in the vertical direction as shown in FIG. At this time, the first protrusion 7 a of the wedge 7 is located in the space portion of the connecting member 6. Next, the operator causes the lower end of the wedge 7 to pass through the flange hole 4 of the flange 3 and the lower surface opening 10 of the connecting member 6, and moves the wedge 7 downward to a position where the lower end of the wedge 7 slightly protrudes from the connecting member 6. Move (see arrow B in FIG. 5).

  Here, the wedge attaching / detaching tool 11 is prepared, and as shown in FIG. 6A, the hooking portion 14 of the narrow portion 13 of the wedge attaching / detaching tool 11 is hooked on each first protrusion 7 a of the wedge 7. The wedge attaching / detaching tool 11 is pushed into the horizontal member 2 side (see arrow C), and the pair of narrow portions 13 sandwich the main body of the wedge 7 in the thickness direction. Then, the convex portion 15 of the wedge attaching / detaching tool 11 is brought into contact with the lower surface of the horizontal member 2 and, as shown in FIG. Press toward (see arrow D).

  As a result, the first protrusion 7a of the wedge 7 is displaced downward (opposite to the pressing direction) by the latching portion 14 of the wedge attaching / detaching tool 11, and the wedge 7 is pulled downward. Therefore, the wedge 7 is firmly fastened to the flange hole 4 of the flange 3, whereby the horizontal member 2 is fixed to the column 1.

  Thus, according to the present embodiment, the wedge 7 can be easily pulled downward by the lever principle using the wedge attaching / detaching tool 11, and the wedge 7 can be fastened to the flange hole 4. For this reason, the wedge 7 is not hit with the hammer 32 or the like unlike the conventional wedge attaching / detaching mechanism, so that no noise is generated and the wedge 7 can be prevented from being damaged, for example. Further, it is possible to reduce the labor of the worker by hitting a hammer or the like.

  Next, a procedure for removing the horizontal member 2 from the support 1 will be described.

  As shown in FIG. 7 (a), the operator holds the second engaging portion 14 of the narrow portion 13 of the wedge attaching / detaching tool 11 in the state where the wedge 7 is firmly tightened to the flange hole 4. The wedge attaching / detaching tool 11 is pushed into the horizontal member 2 side so as to be hooked on the protrusion 7b (see arrow E), and the pair of narrow portions 13 sandwich the main body of the wedge 7 in the thickness direction. Then, the convex portion 15 of the wedge attaching / detaching tool 11 is brought into contact with the upper surface of the horizontal member 2 and, as shown in FIG. Press toward (see arrow F).

  As a result, the second protrusion 7b of the wedge 7 is displaced upward by the latching portion 14 of the wedge attaching / detaching tool 11, and the wedge 7 is moved upward. Therefore, the wedge 7 is relaxed from the flange hole 4 of the flange 3, and the horizontal member 2 can be removed from the column 1.

  Thus, the wedge attaching / detaching tool 11 can also be used when removing the horizontal member 2 from the support column 1. Also in this case, the wedge 7 is not hit with the hammer 32 or the like unlike the conventional wedge attaching / detaching mechanism, so that no noise is generated and the wedge 7 can be prevented from being damaged.

  Further, according to the present embodiment, both the case where the horizontal member 2 is fixed to the column 1 and the case where the horizontal member 2 is removed from the column 1 can be performed by one wedge attaching / detaching tool 11. Therefore, product cost can be reduced.

  Further, the wedge attaching / detaching tool 11 can fix the horizontal member 2 to the support column 1 and remove the horizontal member 2 from the support column 1 using the lever principle, so that the operator can perform it with a relatively small force. it can. Therefore, it is possible to reduce labor by striking the wedge 7 with the hammer 32 or the like as in the conventional wedge attaching / detaching mechanism, and the work is not burdened.

  Further, according to the present embodiment, the horizontal member 2 can be fixed to and removed from the support column 1 using the second protrusion 7b and the first protrusion 7a formed on the wedge 7. Therefore, since the shape of the wedge 7 is used as it is, it is not necessary to process the wedge 7 and processing costs are not required.

  The scope of the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention. For example, the number, form, size, structure, and the like of each member such as the support 1, the horizontal member 2, the flange 3, the connecting member 6, the wedge 7, and the wedge attaching / detaching tool 11 in the above embodiment are not limited to the above embodiment. The design can be changed as appropriate.

  In particular, the wedge attaching / detaching tool 11 is not limited to the above-described embodiment as long as it can fix and remove the support column 1 and the horizontal member 2 using this principle.

DESCRIPTION OF SYMBOLS 1 Support | pillar 2 Horizontal material 3 Flange 4 Latching hole 5 Pipe member 6 Connecting member 7 Wedge 7a 1st protrusion 7b 2nd protrusion 11 Wedge attaching / detaching tool 12 Main body 13 Narrow part 14 Latching part 15 Protruding part 16 Power point part

Claims (7)

A substantially plate-like flange provided on a support column for constructing a temporary scaffold;
A long and cylindrical horizontal member having one end connected to the flange;
A wedge which is inserted into a flange hole of the flange while penetrating one end portion of the horizontal member from above, and is fastened;
A wedge attaching / detaching tool having a long main body,
The wedge detachment tool is:
A latching portion provided at one end of the main body and latched on a protrusion formed on the wedge, and functioning as an action point;
A convex portion in a side view that is provided near the center of the main body and is in contact with the circular surface of the horizontal member and functions as a fulcrum;
Provided at the other end of the main body, and has a force point portion that functions as a force point;
The convex portion is formed with a taper that narrows toward the inside so as to follow the circular surface of the horizontal member,
By pressing the force point portion, the latching portion is displaced in the opposite direction to the pressing direction with the convex portion in contact with the circular surface of the horizontal member as a fulcrum, and the wedge is moved in the opposite direction. Displace,
Thus, the wedge is fastened to the flange hole and the horizontal member is fixed to the support column, or the wedge is loosened from the flange hole and the horizontal member is removed from the support column. . The latching portion is latched by a first protrusion formed at the lower end of the wedge,
The convex portion is in contact with the lower surface of the horizontal member,
By pressing the force point portion toward the horizontal member, the hooking portion is displaced in a direction opposite to the pressing direction with the convex portion in contact with the lower surface of the horizontal member as a fulcrum, and the wedge is removed. Displacing in the opposite direction,
The wedge attachment / detachment mechanism according to claim 1, wherein the wedge is fastened to the flange hole to fix the horizontal member to the support column. The hook portion is hooked to a second protrusion formed on the upper end portion of the wedge,
The convex portion is in contact with the upper surface of the horizontal member,
By pressing the force point portion toward the horizontal member, the hooking portion is displaced in a direction opposite to the pressing direction with the convex portion in contact with the upper surface of the horizontal member as a fulcrum, and the wedge is moved. Displacing in the opposite direction,
The wedge attaching / detaching mechanism according to claim 1, wherein the wedge is loosened from the flange hole to remove the horizontal member from the support column. A substantially plate-like flange provided on the column;
A long and cylindrical horizontal member having one end connected to the flange;
A wedge attaching / detaching tool used for a temporary scaffold comprising a wedge that is inserted into a flange hole of the flange while tightly penetrating one end of the horizontal member from above,
An elongated body,
A latching portion that is provided at one end of the main body and is latched by a first protrusion formed at the lower end of the wedge, and functions as an action point;
A convex portion in a side view that is provided near the center of the main body and is in contact with the lower surface of the horizontal member and functions as a fulcrum;
Provided at the other end of the main body, and includes a force point portion functioning as a force point,
The convex portion is formed with a taper that narrows toward the inside so as to follow the circular surface of the horizontal member,
By pressing the force point portion, the latching portion is displaced in the opposite direction to the pressing direction and the wedge is displaced in the opposite direction, with the convex portion in contact with the lower surface of the horizontal member as a fulcrum. Let
Thereby, the wedge is fastened to the flange hole and the horizontal member is fixed to the support column. The hook portion is hooked to a second protrusion formed on the upper end portion of the wedge,
The convex portion is in contact with the upper surface of the horizontal member,
By pressing the force point portion, the latching portion is displaced in the opposite direction to the pressing direction and the wedge is displaced in the opposite direction with the convex portion in contact with the upper surface of the horizontal member as a fulcrum. Let
5. The wedge attaching / detaching tool according to claim 4, wherein the wedge is relaxed from the flange hole to remove the horizontal member from the support column. A substantially plate-like flange provided on the column;
A long and cylindrical horizontal member having one end connected to the flange;
A wedge attaching / detaching method used for a temporary scaffold comprising a wedge inserted through a flange hole of the flange while penetrating one end of the horizontal member from above,
Prepare a wedge detachment tool with a long body,
One end of the main body is hooked to a first protrusion formed on the lower end of the wedge to serve as an action point,
Formed near the center of the main body, a side view convex portion formed with a taper that narrows toward the inside so as to follow the circular surface of the horizontal material, and abuts the lower surface of the horizontal material as a fulcrum,
The other end of the body is the power point,
By pressing the other end of the main body, the one end of the main body is displaced in a direction opposite to the pressing direction with the convex portion in contact with the lower surface of the horizontal member as a fulcrum, and the wedge is Displace in the opposite direction,
Thus, the wedge is fastened to the flange hole and the horizontal member is fixed to the support column. One end of the main body is hooked on a second protrusion formed on the upper end of the wedge to serve as an action point,
The convex part is brought into contact with the upper surface of the horizontal member as a fulcrum,
The other end of the body is the power point,
By pressing the other end portion of the main body, the one end portion of the main body is displaced in a direction opposite to the pressing direction with the convex portion in contact with the upper surface of the horizontal member as a fulcrum, and the wedge is Displace in the opposite direction,
The wedge attaching / detaching method according to claim 6 , wherein the wedge is loosened from the flange hole to remove the horizontal member from the support column.

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