JP2020023780A - Connector for industrial sheet - Google Patents

Abstract

To provide a packaging box capable of surely holding a flap in a state of folded outward a barrel part, and having a lock piece hardly hindering work.SOLUTION: A connector 3 of a rectangular industrial sheet 2 covers scaffolding 1 of a construction site, and comprises a hook and loop fastener 31 attached to an upper end of the industrial sheet 2 and attachable/detachable to/from a horizontal pipe 12, tack buttons 32 attached to both end sides of the industrial sheet 2, and tubular guide rails 33 attached along a vertical pipe 11 and capable of slidably storing the tack buttons 32. The guide rail 33 has an insertion hole 332a for inserting the tack button 32 in an inner space of the guide rail 33, and a vertically extended opened groove 333.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a connector for a construction sheet covering a scaffold at a construction site.

  2. Description of the Related Art Conventionally, when building or repairing various buildings at a construction site, a curing net or sheet (hereinafter, simply referred to as “construction sheet”) covering the periphery of the building is provided. In addition, tools, materials and the like are prevented from dropping and scattered objects are prevented from generating pollution. In order to dispose such construction sheets around a building, a pillar consisting of a single pipe or the like is assembled vertically and horizontally around the building to form a scaffold. Is fixed by tying the eyelet provided on the edge to a support with a connecting string.

  However, it is necessary to tie the strings to all the eyelets when fixing the work sheet, and it is necessary to untie or cut all the strings when removing the work sheet, so the work is complicated. There's a problem.

  On the other hand, a substantially C-shaped work sheet fixing device having a base end portion attached to the eyelet and an opening at the tip end is known (for example, see Patent Document 1).

  According to the work sheet fixing device of Patent Document 1, the support can be attached only by pushing the support column from the opening and fitting the support column.

Japanese Patent No. 5908639

  However, although the work sheet fixing device of Patent Document 1 has improved work efficiency as compared with the work of tying the string, the eyelets of the work sheet are arranged at predetermined positions with respect to the support, and each Since the work for fitting the work sheet fixing tool is required, the work is still complicated, and the above problem has not been solved.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a connector for a construction sheet that can easily attach the construction sheet to a scaffold at a building site.

  In order to achieve the above object, a first construction sheet connecting device of the present invention is a rectangular construction sheet connecting device for covering a scaffold at a construction site, and is attached to an upper end portion of the construction sheet. A fixing tool detachable from a horizontally extending pipe constituting the scaffold; a neck attached to both side edges of the construction sheet and fixed to the construction sheet; and a neck from a tip end of the neck. A tubular guide having a protrusion having a head projecting in a direction away from the axial direction of the tube, and an inner space attached along a vertically extending pipe constituting the scaffold and capable of slidably receiving the protrusion. A rail, and the guide rail is provided at an upper end portion, and an insertion hole for inserting the protrusion into the internal space, and is communicated below the insertion hole, and has a horizontal width in the horizontal direction of the neck portion. width Redirecting a, and characterized by having an open groove extending in the vertical direction to a smaller than the horizontal width of the head.

  In the connector for a construction sheet according to the present invention, a fixture is attached to a horizontally extending pipe constituting the scaffold, and then the projections attached to both side edges from below the construction sheet are attached to the guide rail. Insert into the insertion hole.

  Then, since the guide rail extends in the vertical direction and the protrusion is slidable in the internal space, the protrusion and the construction sheet to which the protrusion is fixed sequentially slide down by their own weight.

  At this time, since the width of the opening groove of the guide rail with respect to the protrusion in the horizontal direction is larger than the width of the neck and smaller than the width of the head, the sliding protrusion may come off the guide rail. Is prevented.

  Therefore, according to the connector for a work sheet of the present invention, the work sheet is easily attached to the scaffold at the building site by attaching the fixture to the pipe and inserting the protrusion into the insertion hole of the guide rail. be able to.

  In the connector for a construction sheet according to the present invention, it is preferable that a lower end of the guide rail is open.

  According to this, only by removing the fixing device from the pipe extending in the horizontal direction, the protrusions slide down sequentially by their own weight and come out from the lower end of the guide rail, so that the construction sheet from the scaffold at the building site Can be easily removed.

The second construction sheet connecting device of the present invention is a rectangular construction sheet connecting device for covering a scaffold at a construction site, and is attached to both side edges of the construction sheet. A protrusion having a head to be fixed and a head projecting from a tip of the neck in a direction away from the axial direction of the neck; and A mounting mechanism detachably mounted, the mounting mechanism connecting a pair of upper and lower extending portions extending in the horizontal direction and base ends of the two extending portions, and making the two extended portions relatively angled. A connecting elastic portion that variably supports and biases the distal ends of the two extending portions in a direction in which the distal ends of the two extending portions are separated from each other, and is provided at the distal end of at least one of the extending portions; And a hook portion on which the tip of the extension portion is hooked,
The extending portion is formed at an intermediate portion in the extending direction of the extending portion, is bent so as to protrude in a direction intersecting the extending direction and the vertical direction, and locks an outer periphery of the pipe extending in the vertical direction. And a bent portion formed between an intermediate portion and an end portion of the extension portion and bent so as to protrude in a direction approaching the opposing extension portion. When the distal ends of the two extending portions are urged in the approaching direction against the urging force of the connection elastic portion, the extending portions intersect at least two places with the opposed extending portions, and the extending portions between the intersections are provided. The inner diameter of the region closed by the bent portion is larger than the outer diameter of the head, and when the coupling elastic portion is released from the bias, the inner diameter of the region is smaller than the outer diameter of the head. It is characterized by the following.

  The mounting mechanism of the present invention can insert a vertically extending pipe forming a scaffold between the two extending portions by once releasing the hook portion and opening the distal ends of the both extending portions in the direction in which they are separated from each other. . Next, the pipes are pinched by the engaging portion formed at the intermediate portion of the extending portion and the other extending portion facing the other by bringing the tips of both extending portions close to each other and hooking the hook portion. Can be locked.

  Further, when the mounting mechanism is urged in a direction in which the distal ends of the two extending portions approach each other, the inner diameter of a region closed by the bent portion and the opposite extending portion is larger than the outer diameter of the head, A projection can be inserted from the head to the neck in this area. Next, when the connecting elastic portion is released from the bias, the inner diameter of the region becomes smaller than the outer diameter of the head, so that the head does not fall out of the region.

  Therefore, according to the connecting member of the construction sheet of the present invention, the construction sheet can be easily attached to the scaffold at the construction site by operating both extension portions of the attachment mechanism.

FIG. 1A is a front view showing an example of use in which a connector for a construction sheet according to the first embodiment is attached to a scaffold at a construction site, and FIG. 1B is a perspective view illustrating assembly of the scaffold. The rear view which shows the back surface of the sheet for construction of 1st Embodiment. It is explanatory drawing which shows the guide rail of 1st Embodiment, FIG. 3: A is a perspective view which shows the vicinity of an upper end, FIG. 3: B is a partial longitudinal cross-section which shows the state attached to the scaffold. FIG. 4A is a perspective view from the back showing a method of attaching a construction sheet to the guide rail according to the first embodiment. FIG. 4B is a partial cross-sectional view of a state where a construction sheet is attached to a guide rail. The perspective view which shows the attachment mechanism which concerns on the connector of the construction sheet of 2nd Embodiment. FIG. 6A is an explanatory view showing an operation when attaching a construction sheet to the attachment mechanism according to the second embodiment, and FIG. 6A is a front view showing a state where the construction sheet has been attached to the attachment mechanism; , Is a front view showing a state when a construction sheet is attached to the attachment mechanism. FIG. 13 is a perspective view showing a modification of the attachment mechanism of the second embodiment.

[First Embodiment]
A first embodiment of the present invention will be described with reference to FIGS.

  As shown in FIG. 1A, the connecting member of the construction sheet according to the first embodiment is a connecting member 3 used when the scaffold 1 at the construction site is covered with the construction sheet 2. The connecting tool 3 is composed of three members: a hook-and-loop fastener 31 (corresponding to a “fixing tool” of the present invention), a tack button 32 (corresponding to a “projecting section” of the present invention), and a guide rail 33.

  In FIG. 1A, a state where the scaffold 1 of the construction site is covered with the construction sheet 2 on the right side of the drawing, a state where only the guide rail 33 is attached at the lower left, and a state where only the scaffold 1 is shown at the upper left are illustrated for explanation. ing.

  In the scaffold 1, a vertical pipe 11 extending in a vertical direction and a horizontal pipe 12 extending in a horizontal direction are continuously assembled in a lattice shape. On the outer periphery of the vertical pipe 11, a pocket metal fitting 13 protruding radially outward in a U-shape is provided.

  In this embodiment, as shown in FIG. 1B, the scaffold is assembled by inserting insertion protrusions projecting radially outward from the outer periphery of the end of the horizontal pipe 12 into the pocket fittings 13 of the vertical pipe 11.

  Next, the construction sheet 2 of the first embodiment will be described with reference to FIG. In the present embodiment, the state of being assembled to the scaffold 1 will be described as the front side, and FIG. 2 illustrates the back surface of the construction sheet, which is the side facing the construction object such as a house.

  As shown in FIG. 2, the upper and lower ends of the construction sheet 2 are formed with a bag-shaped storage portion 21 along the upper edge and the lower edge. An iron shaft 22 is inserted into the storage section 21.

  A gripping portion 23 that can be gripped is sewn at the center of the construction sheet 2.

  A pair of hook-and-loop fasteners 31 are sewn to the upper end of the construction sheet 2 at intervals. The hook-and-loop fastener 31 can be hung on the horizontal pipe 12 and wound, and the construction sheet 2 can be hung on the horizontal pipe 12.

  Tack buttons 32 made of brass are attached to both side edges of the construction sheet 2. A plurality of tack buttons 32 are attached at predetermined intervals.

  The tack button 32 has a main body 321 and a thumbtack-shaped rivet 322. The main body 321 includes a cylindrical neck 323 and a disk-shaped head 324 projecting radially outward from the tip of the neck 323.

  The tack button 32 can be attached by piercing the tip of the rivet 322 from the front side of the construction sheet 2 and penetrating the same, then inserting the rivet 322 into the neck 323 from the base end side and caulking.

  As shown in FIG. 3A, the guide rail 33 includes a pair of vertically extending rectangular tubular rail portions 332 fixed to the left and right ends of a connecting plate 331 extending in the lateral direction.

  The rail portion 332 has an upper end that is not closed and is open (corresponding to an “insertion hole” of the present invention; hereinafter, referred to as an “upper end opening 332a”). Similarly, the lower end of the rail portion 332 is not closed and is open (the lower end is not shown, and is hereinafter referred to as “lower end opening 332b”). The rail portion 332 is provided with an opening groove 333 that extends vertically from the upper end to the lower end at the center in the front left / right direction. Thereby, the cross section of the rail portion 332 is formed in a substantially “C” shape.

  As shown in FIG. 3B, an inverted “L” -shaped insertion portion 334 is provided on the surface of the connection plate 331 opposite to the surface on which the rail portion 332 is attached. The guide rail 33 can be attached to the scaffold 1 by inserting the insertion portion 334 into the pocket fitting 13 of the vertical pipe 11.

  Next, a method of attaching the construction sheet 2 to the scaffold 1 will be described.

  First, the hook-and-loop fastener 31 provided at the upper end of the construction sheet 2 is wound around and attached to the horizontal pipe 12 of the scaffold 1.

  Next, as shown in FIG. 4A, the tack buttons 32 are sequentially fitted into the upper end openings 332 a of the rail portions 332 from the lower end side of the construction sheet 2.

  At this time, as shown in FIG. 4B, the internal space of the rail portion 332 is equal to or larger than the width (the left-right direction of FIG. 4B) and the thickness (the same vertical direction) of the head 324, and can accommodate the head 324. . The lateral width of the opening groove 333 of the rail portion 332 (the horizontal direction in FIG. 4B) is equal to or greater than the lateral width of the neck portion 323 (the horizontal direction in FIG. 4B) and smaller than the lateral width of the head 324 (the horizontal direction in FIG. 4B). It is.

  Thereby, the tack button 32 can slide downward along the opening groove 333 of the rail portion 332. As a result, the work sheet 2 is attached from the upper side to the lower side of the guide rail 33 by its own weight. Then, when all the tack buttons 32 are fitted, the construction sheet 2 is hung on the horizontal pipe 12 by the hook-and-loop fastener 31, and the attachment is completed.

  According to the connector 3 of the first embodiment having the above configuration, the hook-and-loop fastener 31 is wound around the horizontal pipe 12 of the scaffold 1 and attached, and the tack button 32 is attached to the upper end opening 332a of the rail portion 332 for construction. The construction sheet 2 can be attached to the scaffold 1 simply by sequentially fitting the sheet 2 from the base end side.

  At this time, the tack button 32 slides downward because the width of the head portion 324 (the left-right direction in FIG. 4B) is larger than the width of the opening groove 333 of the rail portion 332 (the left-right direction in FIG. 4B). In this case, the guide rail 33 is prevented from accidentally coming off.

  Further, the work sheet 2 can be removed by its own weight from the lower end opening 332b of the rail portion 332 simply by removing the hook-and-loop fastener 31 from the horizontal pipe 12 of the scaffold 1.

  Further, since the steel sheet 22 is inserted into the upper and lower edges of the construction sheet 2, deformation in the front-rear direction (the depth direction in FIG. 1) can be prevented without being tied to the horizontal pipe 12.

  Moreover, since the gripping portion 23 that can be gripped is sewn at the center of the construction sheet 2, it can be easily opened and closed during ventilation or the like.

  Further, the tack button 32 of the first embodiment can be attached by caulking the rivet 322, so that the attachment is easy.

  In addition, since the upper and lower ends of the rail portion 332 of the first embodiment are open, attachment and detachment of the tack button 32 are easy.

  In addition, the guide rail 33 according to the embodiment can be attached to the scaffold 1 by inserting the insertion portion 334 into the pocket fitting 13 of the vertical pipe 11, so that the attachment is easy.

[Modification]
In addition, the connection tool 3 of the first embodiment is not limited to the above configuration, and can be appropriately changed.

  For example, in the first embodiment, an example in which the hook-and-loop fastener 31 is used has been described as an example of the “fixing device” of the present invention. However, the “fixing device” may be a device that is fastened with a string or rubber, such as an S-shape. A hook or the like that hooks may be used.

  The tack button 32 is an example in which the outer shape and structure can be similar to those of a button attached to so-called denim, and is not limited to a commercially available button itself, but is suitable for the connecting tool 3 of the present invention. Needless to say, it may be designed as having a large size and structure. Similarly, in the first embodiment, brass is used as the material, but another metal material such as aluminum or stainless steel may be used, or resin may be used.

  In the first embodiment, the tack button 32 has been described as an example of the “projection” of the present invention. However, the projection is not limited to this, and one or both of the neck 323 and the head 324 are cylindrical. However, the present invention is not limited to this, and may have a columnar shape, a prismatic shape, a prismatic shape, or the like. Further, when the construction sheet 2 is viewed from the rear (in the direction as viewed from the front in FIG. 2), the construction sheet 2 is not limited to a circular shape or a square shape which is vertically symmetrical, and may be an elliptical shape or a rectangular shape.

  Further, the neck portion 323 and the head portion 324 are integrally formed into a substantially conical shape, a quadrangular pyramid shape, or the like. You may. That is, when the construction sheet 2 is viewed in a plan view, the main body 321 has a greater width on the distal end side than the base end side attached to the construction sheet 2 and is prevented from falling out of the opening groove 333 of the rail section 332. I just need.

  In the first embodiment, the tack button 32 is fixed by sandwiching the construction sheet 2 between the main body 321 and the rivet 322. However, the “projection” of the present invention is not limited to this, and may be bonded, welded, sewn, or the like. It may be attached with.

  A storage portion 21 is formed at the upper and lower edges of the construction sheet 2 and an iron shaft 22 is inserted. However, the storage portion 21 and the shaft 22 may be omitted.

  At the center of the construction sheet 2, a gripping portion 23 that can be gripped is sewn, but the position and the number are not limited and may be omitted.

  Although the guide rail 33 according to the first embodiment has a pair of rectangular tube-shaped rail portions 332, the number of the rail portions 332 may be one or a cylindrical shape.

  Although the rail portion 332 is described as having the upper and lower ends open, the upper and lower ends are closed, and the head 324 of the tack button 32 can pass through the upper and lower ends of the vertically extending opening groove 333. The “insertion portion” of the present invention can be formed by connecting the holes in series.

  At this time, the opening groove 333 and a hole not communicating with the opening groove 333 may be further provided above the hole connected to the upper end of the opening groove 333. According to this configuration, the “fixing device” of the present invention can be formed by hooking the tack button 32 attached to the upper side of the work sheet in the upper hole, and the hook-and-loop fastener 31 and the like are separately attached. This can be omitted.

  Further, the “insertion portion” is designed such that the vertical length of the “projection portion” is shorter and shorter than the horizontal direction, and the width of the opening groove 333 is “projection”, without being separately provided at the upper end portion of the opening groove 333. The part may be designed to be larger than the length in the up-down direction, rotated 90 °, inserted into the internal space of the rail part 332, and then rotated 90 ° reverse to assemble.

  Although the guide rail 33 of the first embodiment is described as being attached to the scaffold 1 by inserting the insertion portion 334 into the pocket fitting 13 of the vertical pipe 11, the pocket fitting 13 may be omitted, and the guide rail 33 and the vertical The pipe 11 may be detachably screwed with bolts and nuts by providing through holes in the connecting plate 331 and the vertical pipe 11 in the depth direction of FIG. 1, and the connecting plate 331 is directly welded to the vertical pipe 11. You may.

[Second embodiment]
A second embodiment of the present invention will be described with reference to FIGS.

  The connecting tool 3 of the second embodiment has the same tack button 32 as that of the first embodiment, and instead of the guide rail 33, a safety pin 34 (corresponding to the “mounting mechanism” of the present invention) as shown in FIG. .).

  The safety pin 34 is made of iron, and a pair of upper and lower rod-shaped shaft portions 341 (corresponding to “extending portions” of the present invention) extending in the lateral direction, and a spring portion 342 connecting the base ends of both shaft portions 341. (Corresponding to the “connection elastic part” of the present invention). The spring portion 342 supports the two shaft portions 341 so that the angles thereof can be relatively changed, and urges the two shaft portions 341 in a direction in which the tips of the shaft portions 341 are separated from each other.

  At the tip of the lower shaft portion 341a of the shaft portion 341, a rectangular clasp 343 (corresponding to the "hook portion" of the present invention) is attached. The clasp 343 has an upper end bent in an inverted “U” shape in a side view, and can lock the tip of the upper shaft portion 341 b against the urging force of the spring portion 342.

  At the center of the lower shaft portion 341a, a locking portion 344 that projects and bends in the depth direction is formed. The locking portion 344 is bent along the outer circumference of the vertical pipe 11 and is designed to be slightly smaller than the outer circumference and the diameter of the vertical pipe 11, and is locked by being forcibly fitted to the vertical pipe 11. .

  The both shaft portions 341 are formed on both left and right sides of the locking portion 344 with bent portions 345 that are bent in a substantially “U” shape toward the facing shaft portion 341.

  The safety pin 34 having the above configuration allows the vertical pipe 11 to be fitted from the tip side of both shaft portions 341 to the locking portion 344 between both shaft portions 341 in a state where the upper shaft portion 341b is removed from the clasp 343. After that, the tip of the upper shaft portion 341b is locked to the clasp 343, so that the upper shaft portion 341b is attached to the vertical pipe 11, as shown in FIG. 6A.

  At this time, the lower shaft portion 341a and the upper shaft portion 341b intersect the bent portion 345a and the bent portion 345b at two places in a front view, so that the substantially circular hole portion 346 (“the intersection point” in the present invention) is formed. Between the extended portion and the bent portion ”).

  6A, the inner diameter of the hole 346 is equal to or larger than the outer diameter of the neck 323 of the tack button 32 and smaller than the outer diameter of the head 324.

  From here, as shown in FIG. 6B, when the distal ends of both shaft portions 341 are urged in the approaching direction, the bent portion 345a is relatively displaced upward and the bent portion 345b is displaced downward, so that the hole portion is displaced. The inner diameter of 346 is larger than the outer diameter of the head 324 of the tack button 32.

  According to the connector 3 of the second embodiment having the above configuration, the safety pin 34 can be attached to the vertical pipe 11 simply by opening and closing the safety pin 34 and fitting the vertical pipe 11.

  Further, the tack button 32 can be attached to and detached from the scaffold 1 simply by urging the lower shaft portion 341a and the upper shaft portion 341b of the safety pin 34.

[Modification]
Note that the safety pin 34 of the second embodiment is not limited to the above configuration, and can be changed as appropriate.

  In other words, the safety pin 34 is an example in which the external shape and structure can be similar to those of a so-called safety pin, and it is needless to say that the safety pin 34 may be designed to have a size and structure suitable for the connector 3 of the present invention. It is.

  The safety pin 34 according to the second embodiment has been described as being made of iron, but may be made of another metal such as aluminum or stainless steel, or may be made of resin.

  Further, the shaft portion 341 of the second embodiment has been described as a rod shape, but may be a plate shape.

  In the second embodiment, the coil spring-shaped spring portion 342 has been described as the “connecting elastic portion”. However, the “connecting elastic portion” is configured such that the lower shaft portion 341a and the upper shaft portion 341b are directly inverted to form a “U” shape. They may be connected, or may be connected by another elastic member such as rubber.

  In the second embodiment, the rectangular clasp 343 is described as the “hook portion”. However, the “hook portion” is substantially “U” shaped in a direction in which the ends of both shaft portions 341 face each other. It may be bent in a shape and entangled with both ends to be hooked.

  In the second embodiment, the locking portion 344 in which the lower shaft portion 341a is bent in a semicircular shape along the outer circumference of the vertical pipe 11 is described as the “locking portion”, but the upper shaft portion 341b is bent. Alternatively, both the lower shaft portion 341a and the upper shaft portion 341b may be bent. In addition, the locking portion 344 is not limited to a semicircular shape, but may be a rectangular shape such as a triangular shape, a quadrangular shape, or an elliptical shape, as long as the vertical pipe 11 can be sandwiched between the lower shaft portion 341a and the upper shaft portion 341b. Alternatively, the rectangular side may be curved in a convex shape inward so that the locking portion has a spring effect. Furthermore, by forming a circumferential groove in the vertical pipe 11, the locking force can be improved.

  Further, in the second embodiment, the example in which the bent portion 345 is formed on both the lower shaft portion 341a and the upper shaft portion 341b has been described, but the bent portion 345 is formed on the lower shaft portion 341a and the upper shaft portion 341b. It may be formed on one side.

  In the second embodiment, the bent portion 345 is formed in a substantially “U” shape. However, the bent portion 345 may be formed in a rectangular shape such as a triangular shape or a square shape, or may be formed in an elliptical shape. Good.

  In the second embodiment, the bent portions 345 are formed on both left and right sides of the locking portion 344, respectively. However, as shown in FIG. 7, the base portion 341a and the upper shaft portion 341b are connected to each other. The end side and the “connection elastic part” may be bent along the outer circumference of the vertical pipe 11, and a pair of upper and lower bent parts 345 may be formed on the distal end side of the lower shaft part 341 a and the upper shaft part 341 b.

1 Scaffold 11 Vertically extending pipe (vertical pipe)
12 Horizontal pipe (a pipe extending in the horizontal direction)
2 Construction sheet 3 Connecting tool 31 Surface fastener (fixing tool)
32 Tack button (projection)
323 Neck 324 Head 33 Guide rail 332a Upper end opening (insertion hole)
333 opening groove 34 safety pin (mounting mechanism),
341 Shaft 341 (extension)
342 spring part (connection elastic part)
343 clasp (hook)
344 Locking part 345 Bending part 346 Hole (area)

Claims (3)

A connector for a rectangular construction sheet covering a scaffold at a construction site,
A fixture attached to the upper end of the construction sheet and detachable from a horizontally extending pipe constituting the scaffold,
A projection attached to both side edges of the construction sheet, having a neck fixed to the construction sheet and a head projecting from the tip of the neck in a direction away from the axial direction of the neck,
A tubular guide rail attached along a vertically extending pipe constituting the scaffold and having an internal space capable of slidably housing the projection,
The guide rail is provided at an upper end, and an insertion hole for inserting the protrusion into the internal space, and is communicated below the insertion hole, a horizontal width is larger than a horizontal width of the neck, and An opening groove which is smaller than the horizontal width of the head and extends in the vertical direction.   The connecting device for a construction sheet according to claim 1, wherein a lower end of the guide rail is open. A connector for a rectangular construction sheet covering a scaffold at a construction site,
A projection attached to both side edges of the construction sheet, having a neck fixed to the construction sheet and a head projecting from the tip of the neck in a direction away from the axial direction of the neck,
An attachment mechanism attached to a vertically extending pipe constituting the scaffold, and wherein the projection is detachably attached,
The mounting mechanism connects a pair of upper and lower extending portions extending in the horizontal direction, and base ends of the two extending portions, and supports the two extending portions so as to be relatively changeable in angle. A connecting elastic portion biasing in a direction in which the distal ends are separated from each other; and a hook provided at the distal end of at least one of the extending portions, wherein the distal end of the other extending portion is hooked against the biasing force of the connecting elastic portion. With a stop,
The extending portion is formed at an intermediate portion in the extending direction of the extending portion, is bent so as to protrude in a direction intersecting the extending direction and the vertical direction, and locks an outer periphery of the pipe extending in the vertical direction. A locking portion, and a bent portion formed between an intermediate portion and an end portion of the extension portion and bent so as to protrude in a direction approaching the opposing extension portion,
The bending portion,
When the distal ends of the two extending portions are urged in the approaching direction against the urging force of the connection elastic portion, the extending portions intersect at least two places with the opposed extending portions, and the extending portions between the intersections are provided. The inner diameter of the region closed by the bent portion is larger than the outer diameter of the head, and when the coupling elastic portion is released from the bias, the inner diameter of the region is smaller than the outer diameter of the head. A connector for a construction sheet, characterized in that:

Images