JP4551199B2 - Bracket for bracing member and bracing member - Google Patents

Description

  The present invention relates to a fixing bracket and a bracing member that can be detachably attached to a binding member provided on a column of a temporary scaffold used in a construction site or the like.

  A temporary scaffold used in construction or the like is assembled by attaching scaffold components such as a work floor (stepping board), a handrail member, and a bracing member (brace material) to a support. A clamp or a wedge has been conventionally used as a means for fixing the bracing member to the support column.

  In the case of fixing with a clamp, a clamp metal fitting is provided at the end of the muscle bracing body, the clamp metal fitting is fixed to the scaffolding column by bolting, and the muscle bracing member is assembled to the scaffold. Such a clamp method requires a troublesome bolting operation when attaching / detaching the clamp fitting, and thus has a drawback that it takes time to attach / detach the fitting.

  In order to shorten the time for the attaching / detaching work in the clamp method, various fixing brackets using a wedge method have been proposed.

  In Patent Document 1, a cylindrical fastening member called a “frame” is provided on the outer peripheral surface of the column at a predetermined interval in the column length direction, and a wedge is used as a metal fitting for fixing the frame and the bracing. A method is proposed. Here, the fixing bracket is attached to both ends of the bracing body by welding or the like, and constitutes a part of the bracing member. The fixing bracket includes an insertion piece provided at the upper end of the fixing bracket main body so as to protrude downward through a connection piece. A wedge insertion hole penetrating in the vertical direction is formed in the connection piece, and a wedge is inserted into the hole. A piece is slidably inserted along the vertical direction. And the solid metal fitting which can fix a bracing member to a support | pillar by inserting the wedge piece downward in the state after inserting the downward projection-like part of an insertion piece from the frame top is proposed.

  Patent Document 2 proposes an improved technique for the above-described wedge-type fixing bracket. That is, in addition to the insertion piece inserted from above the piece, a piece retaining piece having a hook that can be hooked on the lower edge of the side plate below the piece is provided, and the piece is sandwiched between the insertion piece and the piece retaining piece. After that, the wedge is driven.

  Patent Document 3 proposes a further improvement of the above improvement technique. That is, instead of hooking on the lower edge of the side plate below the frame with the frame latching piece, it is possible to form a recess in the lower part of the insertion piece that penetrates the cylinder portion of the frame from above the frame, and latch it in this recess. A hooking piece having a hook is provided on the fixing bracket, and a wedge is driven after a piece is sandwiched between the insertion piece and the hooking piece.

JP-A-4-118460 Japanese Patent Laid-Open No. 10-37455 JP 2002-371708 A

  The conventional fixing brackets described above have a problem that it takes time to attach and detach even a clamp fixing bracket as well as a wedge fixing bracket.

  The wedge method takes less time to attach and detach than the clamp method, but it still requires time for driving the wedge piece and a tool such as a hammer for driving the wedge piece. The wedge piece driving operation varies depending on the worker. As a result, there is a problem that the strength of the assembled temporary scaffold is affected by the skill level of the worker. In addition, the conventional wedge-type fixing bracket is a method of sandwiching the peripheral wall of the fastening member by driving the wedge piece, and transmitting the axial force generated in the muscle member by the tightening force, so that the wedge is loosened There is a risk that axial force will not be transmitted.

  In order to solve such a problem, an object of the present invention is to provide a completely new type of fixing bracket and bracing member that uses neither a clamp nor a wedge.

The present invention relates to the following bracing member fixing brackets (1) to (3) and the bracing member (4) . Hereinafter, (1) to (4) may be collectively referred to as the present invention.

(1) A bracing member fixing bracket that can be detachably attached to a fastening member provided on a support column, and includes a ridge member having a downward projection, a fixing member having an upward projection, and a fixing pin. The fixing member is connected around the fixing pin so that the fixing member can rotate with respect to the fixing member, with the downward protrusion of the connecting member inserted in the hole above the fastening member. The protrusion can be inserted from the hole below the binding member , and the side member and the fixing member each have a long hole, and a moving pin for connecting the side member and the fixing member is long in both the long holes. The inside of the hole is movably fitted, and by moving the moving pin, the fixing member can be rotated with respect to the attachment member, and the attachment member is disposed in the hole above the fastening member. For a bracing member characterized by having a long hole shape that constitutes a retaining mechanism that can be fixed so that the upward protrusion of the fixing member does not fall out from the hole below the fastening member after the downward protrusion is inserted securing bracket.

(2) The fixing for the bracing member according to the above (1) , wherein the long hole of the prickle member has an inverted V shape, and the long hole of the fixing member has a long hole having a shape elongated in the vertical direction. Hardware.
(3) The fixing bracket for a bracing member according to (1) or (2) above, wherein each of the fixing pin and the moving pin is one.

(4) above (1) to (3) either muscle ministry material for a fixing bracket of muscle exchange unit member, characterized in that attached to at least one end of the muscle交本body in its entrusts member.

  According to the present invention, the muscle main body can be detachably fixed to the binding member provided on the support column in a short time and without using a clamp or a wedge. Moreover, it can prevent reliably that the fixing member which comprises a fixing metal fitting falls out from a binding member.

  The fixing bracket and the bracing member according to the present invention will be described below with reference to the drawings.

  FIG. 1 shows an example in which a binding member 11 is provided on a column 10 of a temporary scaffold, FIG. 1 (a) is a top view thereof, and FIG. 1 (b) is a front view in the AA section.

  The binding member 11 has holes at the top and bottom. Here, a U-shaped member having a U-shaped cross section is attached to the side surface of the column by welding or the like, so that a cylindrical shape is formed in the interior together with the side surface of the column, thereby forming the holes 12 and 13 above and below the fastening member. Yes.

  Here, an example in which the hole portion of the binding member penetrates vertically is shown, but the hole portion may not penetrate, and a hole portion may be provided in each of the upper part and the lower part.

  FIG. 2 shows an example of the fixing member 20 and the fixing member 30 of the fixing bracket according to the present invention. FIG. 2 (a) shows a front view of the rake member, and FIG. 2 (b) shows a front view of the fixing member. FIG. 2C is a partial cross-sectional view showing the fixing pin 40 or the moving pin 41 that couples the arbor member 20 and the fixing member 30.

  This side member 20 has a planar shape, and has a downward projection 21 that can be inserted above the hole 12 of the binding member 11 provided on the column 10. The fixing member 30 also has a planar shape, and has an upward projection 31 that can be inserted from below into the hole 13 of the fastening member 11 provided in the support column 10. Both the prickle member and the fixing member have circular through-holes 22 and 32, and one fixing pin 40 is fitted into both the through-holes, and the prickle member 20 and the fixing member 30 are coupled to each other. The fixing member 30 is coupled to the pivot member 20 so as to be rotatable.

  Further, the long member 23 and 33 are respectively provided in the side member 20 and the fixing member 30, and one moving pin 41 is fitted in both the long holes 23 and 33, and the side member 20 and the fixing member 30. In addition, the moving pin 41 is moved in the long hole, thereby giving a movement of rotating the fixing member 30 relative to the adhering member 20 around the fixing pin 40. When the fixing member 30 is rotated leftward around the fixing pin 40, the upward protrusion 31 of the fixing member 30 is inserted into the hole 13 below the fastening member 11. When the fixing member 30 is rotated rightward, the upward protrusion 31 of the fixing member 30 inserted into the hole 13 below the fastening member 11 falls off.

  In FIG. 2, the shape of the long hole 23 of the side member 20 is an inverted V shape, while the shape of the long hole 33 of the fixing member 30 is long in the vertical direction. For this reason, when the moving pin 41 is located in the lower right portion 24 of the inverted V-shaped long hole 23 provided in the member 20, the moving pin 41 is long in the longitudinal direction provided in the fixed member 30. The fixing member 30 is located at the lowermost portion 34 of the hole 33 and is stopped in a state in which the upward protrusion 31 is not inserted into the hole 13 below the binding member 11. Next, when the moving pin 41 is moved to the lower left portion 26 via the upper portion 25 of the inverted V-shaped long hole 23 provided in the side member 20, the moving pin 41 is provided in the vertical direction provided on the fixed member 30. After moving to the uppermost part 35 of the long hole 33 having a long shape in the direction, it moves to the lowermost part 34. The fixing member 30 stops in a state where the upward protrusion 31 is inserted into the hole 13 below the binding member 11.

  In such a state, the long hole 33 of the fixing member 30 has a shape that is long in the vertical direction, and the moving pin 41 is always located at the lowermost portion 34 of the long hole 33 by its own weight, so that the retaining function is effective. It becomes. Therefore, even if the fixing member 30 receives an external force in the vertical and horizontal directions, as long as the moving pin itself does not receive an external force from the worker, the upward protrusion of the fixing member 30 inserted into the hole 13 below the binding member 11. 31 will not fall out. Thus, by devising the shape of the long holes 23 and 33 of the rake member 20 and the fixing member 30, the shape of the long hole itself can constitute a mechanism for preventing the fixing member from falling off.

  Next, with reference to FIGS. 3 and 4, a description will be given of an operation of attaching and fixing the side member 20 and the fixing member 30 constituting the fixing bracket to the binding member 11 of the support column 10. Note that an end portion of the bracing body 15 indicated by a broken line is attached to the upper right portion of the rake member 20 by welding or the like.

  FIG. 3 shows a state in which the downward protrusion 21 of the rake member 20 is inserted into the hole 12 at the top of the binding member 11. In this state, the fixing bracket is not fixed to the binding member. FIG. 3A is a top view, and FIG. 3B is a front view.

  At this time, the moving pin 41 is located at the lower right portion of the inverted V-shaped long hole 23 provided in the arbor member 20 and is a long hole having a shape elongated in the vertical direction provided in the fixed member 30. The upward projection 31 of the fixing member 30 is not inserted into the hole 13 in the lower part of the fastening member 11, which is located at the lowermost part of 33.

  FIG. 4 shows a state where the fixing bracket is fixed to the binding member. 4A is a top view, and FIG. 4B is a front view.

  Here, by rotating the fixing member 30 counterclockwise with the downward projection 21 of the side member 20 inserted into the hole 12 at the top of the binding member 11, the upward projection 31 of the fixing member 30 is formed on the binding member 11. It shows that it has been inserted into the lower hole 13.

  In order to rotate the fixing member 30 in the left direction, as shown by a thick line in FIG. 4, the moving pin 41 located at the lower right portion of the inverted V-shaped long hole 23 provided in the side member 20 is It is necessary to perform an operation of moving to the lower left via the upper part of the inverted V-shaped long hole 23. At this time, the moving pin 41 simultaneously moves to the uppermost part of the long hole 33 having a shape elongated in the vertical direction provided in the fixing member 30 and then moves to the lowermost part as described above. .

  As a result, the fixing member 30 stops in a state where the upward protrusion 31 is inserted into the hole 13 below the binding member 11.

  In such a state, since the long hole 33 of the fixing member 30 has a long shape in the vertical direction, the moving pin 41 is always positioned at the lowermost part 34 of the long hole 33 by its own weight, so that the retaining function is provided. It becomes effective. Therefore, even if the fixing member 30 receives an external force in the vertical and horizontal directions, as long as the moving pin itself does not receive an external force from the worker, the upward protrusion of the fixing member 30 inserted into the hole 13 below the binding member 11. 31 will not fall out. As described above, when the fixing bracket according to the present invention is used, the bracing body can be detachably fixed to the binding member provided on the support column in a short time without using a clamp or a wedge. it can. Moreover, it can prevent reliably that the fixing member which comprises a fixing metal fitting falls out from a binding member.

  In the above specific examples, the bracing member according to the present invention is an example in which the side fittings constituting the fixing bracket according to the present invention are attached to both ends of the bracing body by welding or the like. Any means capable of connecting the members is not limited to welding.

  Moreover, it is not necessary to attach the fixing bracket according to the present invention to both ends of the brace body, the fixing bracket according to the present invention is used only at one end of the brace body, and the conventional fixing bracket, i.e., the opposite end, is used. Alternatively, a clamp-type or wedge-type fixing bracket may be used.

  When assembling the temporary scaffolding, if there are undulations on the ground where the columns are installed, the left and right columns may have different height levels. In this case, tie the fastening members provided on the left and right columns. The distance will vary compared to the initially planned distance. However, since the length of the bracing member consisting of the bracing body and the fixing brackets at both ends thereof is constant, if the degree of variation in the distance connecting the binding members provided on the left and right struts becomes too large, the muscle It may occur that the connecting members cannot be connected. Particularly, since the fixing bracket according to the present invention has little play (margin) in the length direction of the bracing member, the fixing bracket according to the present invention is applied to both ends of the bracing body when the height levels of the right and left support columns are different When using, the bracing member may not be attached to the binding member of the column. On the other hand, since the conventional wedge-type fixing bracket has play (room) in the length direction of the muscular member by the space for driving the wedge, in such a case, at one end of the muscular body, It is preferable to use the fixing bracket according to the present invention and a conventional wedge-type fixing bracket at the other end. In this way, in the conventional wedge-type fixing bracket attached to the other end of the bracing body, there is play (margin) in the length direction of the bracing member. It is possible to absorb fluctuations in the connecting distance.

  Here, when the bracing member is configured by using the fixing bracket according to the present invention at one end of the bracing body and the conventional wedge-type fixing bracket at the other end, the bracing is performed. It is preferable to use the fixing bracket according to the present invention at the lower end of the main body and the conventional wedge-type fixing bracket at the upper end. In conventional wedge-type fixing brackets, when dismantling the temporary scaffold, it is necessary for an operator to remove the wedge from the fixing bracket by applying a force to the wedge from below, but the lower end of the bracing body This is because, when a wedge-type fixing bracket is attached to the work, it is burdensome for the worker to apply force to the wedge from below. Therefore, it is preferable to use a wedge-type fixing bracket at the upper end of the bracing body.

  According to the present invention, the muscle main body can be detachably fixed to the binding member provided on the support column in a short time and without using a clamp or a wedge. Moreover, it can prevent reliably that the fixing member which comprises a fixing metal fitting falls from a fastening member.

FIG. 1 is an example in which a binding member is provided on a column of a temporary scaffold, FIG. 1 (a) is a top view thereof, and FIG. 1 (b) is a front view in a section AA. FIG. 2 is an example of a side member and a fixing member of the fixing bracket according to the present invention. 2 (a) is a front view of the rake member, FIG. 2 (b) is a front view of the fixed member, and FIG. 2 (c) is a partial sectional view of the fixed pin and the moving pin. It is a figure which shows the state which inserted the downward processus | protrusion of the prickle member in the hole part of the upper part of a fastening member (the fixing metal fitting is not being fixed to the fastening member). FIG. 3A is a top view, and FIG. 3B is a front view. It is a figure which shows the state by which the fixture was fixed to the binding member. 4A is a top view, and FIG. 4B is a front view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Support | pillar 11 Tightening member 12 Upper hole part of tightening member 13 Lower hole part of fastening member 15 Bracing body 20 Azuki member 21 A downward projection of apricot member 22 Circular through-hole provided in the apricot member 23 Long hole provided 24 Lower right portion of the long hole provided in the side member 25 Upper portion of long hole provided in the side member 26 Lower left portion of the long hole provided in the side member 30 Fixing member 31 Upward protrusion of the fixing member 32 circular through-hole provided in the fixing member 33 long hole provided in the fixing member 34 lowest part of the long hole provided in the fixing member 35 uppermost part of the long hole provided in the fixing member 40 fixing pin 41 moving pin

Claims (4)

It is a bracing member fixing bracket that can be detachably attached to a binding member provided on a support column, and includes a ridge member having a downward projection, a fixing member having an upward projection, and a fixing pin, with the fixing pin as a fulcrum The fixing member is coupled around the fixing pin so as to be rotatable relative to the connecting member, and the upward protrusion of the fixing member is tightened with the downward protrusion of the connecting member inserted in the hole above the fixing member. It can be inserted from the lower hole of the member, and the rake member and the fixing member each have a long hole, and a moving pin for connecting the rake member and the fixing member is inserted into the long hole in both the long holes. It is movably fitted, and by moving this moving pin, the fixing member can be rotated with respect to the arm member, and the hole of the arm member can be placed above the fastening member. Upward projections fixing streaks exchange unit material characterized by having a long hole shape constituting the stopper mechanism can be fixed so as not to fall off from the hole portion of the lower tie element of the fixing member after insertion of the orientation protrusion Hardware. The bracing member fixing bracket according to claim 1, wherein the elongated hole of the prickle member has an inverted V shape, and the elongated hole of the fixing member has a long hole having a shape elongated in the vertical direction. The fixing bracket for a bracing member according to claim 1 or 2 , wherein there is one fixing pin and one moving pin. Muscle ministry material for a fixing bracket according to any one of claims 1 to 3, streaks exchange unit member, characterized in that attached to at least one end of the muscle交本body in its entrusts member.

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