JP2015034399A - Fall prevention member installing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fall prevention member installing device installable in one of a scaffold column, without reinstalling in the inverse direction by removing a clamp, when the mutual scaffold columns are closely adjacent.SOLUTION: The fall prevention member installing device 1 is provided with a first clamp 2 for fastening the mutual tips of a pair of first holding pieces opened-closed by a first hinge pin by a first screw member, a first rod member 3 for installing the base end in the first clamp 2 by a first bolt 8 at a right angle between the first hinge pin and the axial direction and installing a fall prevention member P, a second clamp 4 for fastening the mutual tips of a pair of second holding pieces opened-closed by a second hinge pin by a second screw member, a second rod member 5 for installing the base end in a second clamp 4 by a second bolt 11 parallel to the first bolt 8 and having a connection bolt 13 parallel to the second bolt 11 on the tip and a connection member 6 installed on the tip of the first rod member 3 and rotatably and movably supporting the connection bolt 13 between the first rod member and both outside of its extension area.

Description

  The present invention relates to a fall prevention member attaching device for attaching to a scaffold a fall prevention member for preventing a tool, a scaffold member, a building material, or the like from falling from a scaffold assembled at a construction site.

  At the construction site of buildings such as houses and buildings, civil engineering structures such as bridges and tunnels, etc., after assembling the scaffold, attach a fall prevention member such as a plate or net to the outer periphery of the scaffold, Tools, scaffolding materials, building materials, etc. are prevented from falling to the ground. The fall prevention member is attached to the scaffold via a fall prevention member attachment device.

  The fall prevention member mounting device includes an upper mounting bracket that is mounted on a scaffolding column (scaffolding column), a long bar-shaped vertical frame member that is attached to the upper mounting bracket and extends obliquely upward, A rod-like support member having a base end attached to the middle part of the frame member and extending obliquely directly below the upper attachment fitting, and a lower attachment fitting attached to the scaffolding post attached to the distal end of the support member And the fall prevention member attachment apparatus provided with these is proposed (refer patent document 1). The fall prevention member attaching device is attached to the outer periphery of the scaffold at regular intervals, and a flat plate-like fall prevention member is attached so as to straddle the adjacent vertical frame members. Thereby, the tool etc. which fell from the scaffold can be received by the fall prevention member, and can be prevented from falling to the ground.

  In the technique of Patent Document 1, as an upper mounting bracket and a lower mounting bracket that are attached to a scaffolding column, generally, a pair of clamping pieces that are openably and closably connected by a hinge pin, and a distal end side of the pair of clamping pieces A clamp (a so-called pipe clamp) including a screw member that fastens them together is used. With the clamp having such a configuration, the scaffolding strut can be clamped by fastening the distal ends of the pair of sandwiching pieces with the screw members while the scaffolding strut is sandwiched between the pair of sandwiching pieces. The clamp (upper mounting bracket or lower mounting bracket) can be mounted even at the position.

  On the other hand, a general scaffold used in a construction site is a building frame formed in a torii shape by connecting the upper ends of a pair of scaffolding pillars extending vertically with a pipe-shaped upper horizontal frame material, and two building frames And a flat tread that connects the upper horizontal frame members to each other. And by connecting the building frames with the treads, the scaffold can be extended in the horizontal direction, and by connecting the lower end of another building frame to the upper end of the building frame, the scaffold can be extended upward. It is possible to build a scaffold that is sized to match the wall surface.

  By the way, for example, when building a scaffold on a curved wall surface, a small unit scaffold in which two building frames are connected to each other by a tread so that the tread is parallel to the horizontal tangent of the curved wall. Next, another small unit scaffold is arranged so that the tread is parallel to the horizontal tangent of the curved wall surface. In this way, the scaffolds along the curved surface of the wall surface are constructed by sequentially arranging the small unit scaffolds along the wall surface. In such a scaffold, a fall prevention member having a size corresponding to the tread is attached to each small-scale scaffold. That is, the fall prevention member attaching device is attached to each of the scaffold struts spaced apart in the longitudinal direction of the tread in the small unit scaffold, and the fall prevention member is attached so as to straddle the two fall prevention member attaching devices.

  However, as described above, when the small-scale scaffolds are arranged along the curved wall surface, the adjacent scaffold struts are close to each other. Therefore, when attaching the clamp (upper mounting bracket or lower mounting bracket) of the fall prevention member mounting device to the scaffolding column, the screw member of the clamp faces the scaffolding column side close to the scaffolding column to be mounted. In this case, when the pair of sandwiching pieces are opened and the scaffolding strut is sandwiched, the screw member hits the scaffolding strut and the clamp cannot be attached. Therefore, the clamp is once removed from the vertical frame member and the supporting member, and is reattached in the opposite direction so that the screw member does not face the adjacent scaffolding column side, which is troublesome.

  Accordingly, in view of the above circumstances, the present invention provides a fall prevention member mounting device that can be attached to one of the scaffolding struts without removing the clamp and reattaching it in the opposite direction when the scaffolding struts are close to each other. Is an issue.

  In order to solve the above-described problem, the fall prevention member mounting device according to the present invention includes a pair of first clamping pieces that are connected to each other by a first hinge pin so as to be openable and closable, and a pair of first clamping pieces. A base end is attached to the first clamp so as to be rotatable around a first axis perpendicular to the axial direction of the first hinge pin, and a first clamp having a first screw member for fastening them together. A long rod-shaped first flange member to which the fall prevention member is attached, a pair of second clamping pieces connected in an openable / closable manner by a second hinge pin, and a pair of second clamping pieces fastened to each other A second clamp having two screw members; and a base end of the second clamp that is rotatable about a second axis perpendicular to the axial direction of the second hinge pin and parallel to the first axis. And the first shaft at the tip and A long rod-shaped second rod member having a connecting shaft parallel to the second shaft, and attached to the tip of the first rod member, the connecting shaft being rotatable and connected to the connecting shaft The first saddle member and the second saddle member are connected by supporting the first saddle member and the outside of one of the extended regions in a direction perpendicular to the outside in a movable manner. And a connecting member.

  Here, as the “connecting member”, “a flat plate orthogonal to the connecting shaft and provided with a slit into which the connecting shaft is inserted”, “a flat plate orthogonal to the connecting shaft and the end of the connecting shaft is inserted. “A member with a groove”, “a flat plate orthogonal to the connecting shaft, which is attached to the tip of the first flange member so as to be rotatable about an axis parallel to the connecting shaft and to which the connecting shaft is rotatably attached. And the like. Further, the “connecting member” may be a member that moves the connecting shaft in an arc shape or a linear shape.

  In this configuration, the connecting shaft at the tip of the second hook member is moved to one of the first hook member and both outer sides of the extension region of the connecting member, and the second hook member is rotated around the connecting shaft. By making it approach the first brim member, the fall prevention member attaching device (hereinafter also simply referred to as “attaching device”) can be folded. Moreover, while attaching to a scaffolding support | pillar by making a 1st clamp into the lower side, a mounting apparatus can be attached to a scaffolding support | pillar by attaching a 2nd clamp to the site | part above a 1st clamp in a scaffolding support | pillar. And a fall prevention member can be attached to a scaffold by attaching a fall prevention member to a 1st collar member in the state which attached the attachment apparatus to the scaffolding column.

  When the attachment device of the present invention is attached to a scaffold strut in which an adjacent scaffold strut is close, the first screw member of the first clamp and the second screw member of the second clamp are close to the scaffold strut to be attached, respectively. If it is not facing the scaffold strut side, attach the first clamp and second clamp to the scaffold strut in the same orientation. On the other hand, when the first screw member and the second screw member face the side of the scaffolding column that is close to the scaffolding column to be attached, the first screw member and the A two screw member may contact | abut and a 1st clamp and a 2nd clamp may be unable to be attached. Here, if the mounting device is simply turned upside down and the second clamp is attached to the scaffolding column at a position below the first clamp, the direction in which the first screw member and the second screw member are facing is reversed. It becomes. However, the first hook member is positioned above the second hook member, and the fall preventing member cannot be attached to the first hook member.

  Therefore, from the state in which the mounting device is folded, the second hook member is rotated in the direction away from the first hook member with the connecting shaft at the tip as the rotation center, and the connecting shaft is moved to the first hook member and its extension region. Is moved from one outer position to the other outer position. Then, the second hook member is further rotated so as to be positioned on the opposite side to the state before being rotated with respect to the first hook member. Thereby, the second hook member is positioned below the first hook member, and the attachment device is folded. In this state, when the mounting device is turned upside down so that the first heel member is positioned below the second heel member, the first screw member and the second screw member face the adjacent scaffolding column side. Not in a state. Therefore, unlike the conventional case, even if the first clamp and the second clamp are not once removed and reattached in the opposite direction, the mounting device can be inverted without changing the vertical relationship between the first and second collar members. The orientation of the first clamp and the second clamp can be changed, and the first clamp and the second clamp can be attached to one of the adjacent scaffold struts.

  In addition to the above-described configuration, the fall prevention member mounting device according to the present invention includes: "The connection member is a flat plate orthogonal to the connection shaft and extends outward from the tip of the first flange member; A slit extending from one outer side to the other outer side of the first flange member and its extension region is provided, and the connecting shaft is slidably inserted into the slit.

  In the present invention, with a simple configuration in which the connecting shaft is inserted into the slit of the connecting member, the connecting shaft is rotatable and in the direction perpendicular to the connecting shaft, It can be moved between the other outside.

  In addition to the above-described configuration, the fall prevention member mounting device according to the present invention may include: “at least one of the front end side of the first scissors member, the front end side of the second scissors member, and the connecting member; An identification unit for identifying the direction of the screw member and the second screw member is provided. "

  Here, examples of the “identification part” include “bulge part (projection part)”, “concave part”, “arrow”, “coloring”, “notation by characters”, and the like.

  According to the present invention, the identification unit for identifying the orientation of the first screw member and the second screw member is provided on any one of the distal end side of the first flange member, the distal end side of the second flange member, and the connecting member. Therefore, it is possible to recognize the direction in which the first screw member and the second screw member are facing only by looking at the connecting member side. More specifically, for example, when the first hook member and the second hook member are long, the distance from the operator located on the connecting member side to the first clamp and the second clamp is long. The direction of the double screw member is difficult to understand. Therefore, in order to determine whether or not the direction of the first screw member and the second screw member should be changed by inverting the mounting device, the first moving member is moved from the connecting member side to the first clamp or the second clamp side. The direction of the screw member and the second screw member must be confirmed, which is troublesome. On the other hand, in the present invention, even if the operator does not bother to move from the connecting member side to the first clamp or the second clamp side, the identification screw provided on the connecting member side allows the first screw member or the first screw member to be moved. Since the direction of the two-screw member can be recognized, it is possible to save labor for confirmation.

  Thus, according to the present invention, there is provided a fall prevention member mounting device that can be attached to one of the scaffolding struts without removing the clamp and reattaching it in the opposite direction when the scaffolding struts are close to each other. can do.

It is a front view of the fall prevention member attaching device which is one embodiment of the present invention. (A) is a front view which expands and shows the 1st clamp vicinity in the fall prevention member attachment apparatus of FIG. 1, (b) is a top view of (a). (A) is a front view which expands and shows the 2nd clamp vicinity in the fall prevention member attachment apparatus of FIG. 1, (b) is a top view of (a). (A) is a front view which expands and shows the connection member vicinity in the fall prevention member attachment apparatus of FIG. 1, (b) is a top view of (a). It is explanatory drawing which shows the motion of the 2nd collar member with respect to a connection member.

  A fall prevention member mounting apparatus 1 according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 5. The fall prevention member mounting device 1 (hereinafter simply referred to as “mounting device 1”) of the present embodiment is assembled at a building site of a building such as a house or a building, or a civil engineering structure such as a bridge or a tunnel. This is a device for attaching to the scaffold A a fall prevention member P for preventing tools, scaffolding members, building materials, etc. from falling from the scaffold A.

  The attachment device 1 includes a first clamp 2 attached to a scaffold column B extending vertically in the scaffold A, a long rod-shaped (pipe-like) first rod member 3 attached to the first clamp 2, and a scaffold column. In B, the second clamp 4 attached to the upper side of the first clamp 2, the long rod-shaped (pipe-shaped) second rod member 5 attached to the second clamp 4, the first rod member 3, and the second rod And a connecting member 6 that connects the tips of the members 4 to each other.

  As shown in FIG. 2, the first clamp 2 includes a pair of first clamping pieces 2b connected to each other by a first hinge pin 2a, and a rod-shaped first screw member 2c having a male screw formed on the outer periphery. And a nut 2d screwed into the first screw member 2c. The base end of the first screw member 2c is attached to one distal end side of the pair of first clamping pieces 2b so as to be rotatable around an axis 2e parallel to the first hinge pin 2a. Further, a slit (not shown) through which the first screw member 2c can pass is formed from the tip toward the first hinge pin 2a side on the tip side of the other first clamping piece 2b. Accordingly, the first screw member 2c can be inserted into and removed from the slit by rotating the first screw member 2c around the shaft 2e.

  This 1st clamp 2 can open the front end side of a pair of 1st clamping piece 2b largely by removing the 1st screw member 2c from the inside of a slit, Between a pair of 1st clamping piece 2b Scaffold strut B of scaffold A can be inserted. Further, when the nut 2d is tightened in a state where the first screw member 2c is inserted into the slit, the tips of the pair of first sandwiching pieces 2b can be brought close to each other. Therefore, in a state where the scaffold column B is inserted between the pair of first clamping pieces 2b, the scaffolding column B is inserted into the slit and screwed into the distal end side of the first screw member 2c penetrating the other first clamping piece 2b. By tightening the nut 2d, the scaffolding column B can be clamped by the pair of first clamping pieces 2b, and the first clamp 2 can be attached to the scaffolding column B.

  Moreover, the 1st clamp 2 is provided with the 1st attachment member 7 which supports the base end side of the 1st collar member 3 rotatably, This 1st attachment member 7 is on one outer side of the 1st clamping piece 2b. Installed. The first mounting member 7 extends perpendicularly in the same direction with respect to the base portion 7a from a pair of parallel sides of the flat base portion 7a having a square outer shape and the base portion 7a. A pair of flat plate-like extending portions 7b. In the first attachment member 7, the distance between the pair of extending portions 7 b is slightly wider than the outer diameter of the first flange member 3. The base portion 7a of the first attachment member 7 is attached to the first clamping piece 2b so that the side that becomes the boundary between the base portion 7a and the extension portion 7b is parallel to the first hinge pin 2a.

  The first brim member 3 is a pipe having a thickness and a length to which the fall preventing member P can be attached. The base end side of the first flange member 3 is inserted between the pair of extending portions 7b, and is inserted through the pair of extending portions 7b and the first flange member 3 from the outside of the extending portion 7b. A single bolt 8 is pivotally attached to the first attachment member 7. The axis of the first bolt 8 is perpendicular to the axial direction of the first hinge pin 2 a of the first clamp 2. The first bolt 8 is prevented from coming off by a nut 9 screwed to the tip thereof. Here, the first bolt 8 of the present embodiment corresponds to the “first shaft” of the present invention.

  The 2nd clamp 4 is the same structure as the 1st clamp 2, and as shown in FIG. 3, a pair of 2nd clamping pieces 4b connected with the 2nd hinge pin 4a so that opening and closing is possible, and an external thread is formed in the outer periphery. A rod-shaped second screw member 4c and a nut 4d screwed with the second screw member 4c are provided. A proximal end of the second screw member 4c is attached to one distal end side of the pair of second clamping pieces 4b so as to be rotatable around an axis 4e parallel to the second hinge pin 4a. Further, a slit (not shown) through which the second screw member 4c can pass from the tip toward the second hinge pin 4a side is formed on the tip side of the other second clamping piece 4b. Accordingly, the second screw member 4c can be inserted into and removed from the slit by rotating the second screw member 4c around the shaft 4e. The second clamp 4 is attached to the scaffolding column B such that the axis of the second hinge pin 4a is in the same direction as the axis of the first hinge pin 2a of the first clamp 2. The second clamp 4 can be attached to the scaffolding column B in the same procedure as the first clamp 2.

  Moreover, the 2nd clamp 4 is provided with the 2nd attachment member 10 which supports the base end of the 2nd collar member 5 rotatably, This 2nd attachment member 10 is attached to one outer side of the 1st clamping piece 4b. It has been. The second mounting member 10 is formed by bending a band plate material into a U shape. In the second attachment member 10, the distance on the open end side in the U-shape is an interval at which the base end (attachment end portion 5 a described later) of the second flange member 5 can be inserted. The second attachment member 10 is attached to the second clamp 4 at the curved base so that the width direction of the strip plate material is parallel to the second hinge pin 4a.

  The second rod member 5 is a pipe having an outer diameter smaller than that of the first rod member 3. As shown in FIG. 3 and FIG. 4, the second flange member 5 includes connection end portions 5 a formed by flattening a pipe by crushing the pipe at both ends. In the second flange member 5, the connecting end portions 5a at both ends are formed on the same surface. The base end side of the second hook member 5 is the open end side of the second mounting member 10 from the outside of the second mounting member 10 in a state where the mounting end portion 5a is inserted into the open end side of the U-shaped second mounting member 10. And it is attached to the 2nd attachment member 10 so that rotation is possible by the 2nd volt | bolt 11 which penetrated the attachment edge part 5a. The axis of the second bolt 11 is perpendicular to the axial direction of the second hinge pin 4 a of the second clamp 4. The second bolt 11 is prevented from coming off by a nut 12 screwed into its tip. Here, the 2nd volt | bolt 11 of this embodiment is corresponded to the "2nd axis | shaft" of this invention.

  The distal end side of the second flange member 5 is rotatably attached to the connecting member 6 by a connecting bolt 13 parallel to the axial direction of the second bolt 11. Here, the connecting bolt 13 of the present embodiment corresponds to a “connecting shaft” of the invention.

  As shown in FIG. 4, the connecting member 6 is a flat plate having a fan shape, and is inclined in a direction in which the linear base end side 6a and the base end side 6a are separated from each other as the distance from the base end side 6a increases. A pair of side edges 6b, and an arcuate tip side 6c having a center point on the axis of the first flange member 3 on the base end side 6a side, which connects the tips of the pair of side edges 6b. . The connecting member 6 has a base end side 6a in a direction in which the base end side 6a is longer than the outer diameter of the first flange member 3 and the base end side 6a is perpendicular to the axis of the first flange member 3. Is attached to the front end of the first scissors member 3 so that about 1/3 from the front end side 6c is embedded in the first scissors member 3. Further, the connecting member 6 is attached to the tip end of the first flange member 3 such that the extended surface of the flat plate is orthogonal to the axes of the first bolt 8, the second bolt 11, and the connecting bolt 13. As shown in FIG. 4 (b), the attachment device 1 of the present embodiment includes a pair of parallel connecting members 6 that are separated by an interval at which the connecting end portion 5a of the second flange member 5 can be inserted. The pair of connecting members 6 are attached so that the axis of the first brim member 3 is located on the virtual plane in the center between them.

  The connecting member 6 includes a through slit 6d through which the connecting bolt 13 is slidably inserted. The slit 6d extends in an arc shape along the tip side 6c. Further, the connecting member 6 includes a bulging portion 6e that bulges from the vicinity of one end portion of the distal end side 6c.

  The slit 6d penetrates the pair of connecting members 6 respectively. In addition, the slit 6 extends from one outer side of the virtual extension cylinder extending the outer shape of the first flange member 3 to the other outer side. In addition, both ends of the slit 6d are located outside the positions separated from the outer peripheral surface of the virtual extension cylinder by the length of the radius of the second flange member 5 respectively. Here, the virtual extension cylinder which extended the external shape of the 1st collar member 3 in this embodiment is equivalent to the "extension area | region of the 1st collar member" of this invention.

  With the connecting end 5a on the distal end side of the second flange member 5 inserted between the pair of connecting members 6, the connecting bolt 13 penetrates the slit 6d and the connecting end 5a from the outside of the connecting member 6. The tip of the two-piece member 5 is attached to the connecting member 6. Further, the connecting bolt 13 is prevented from coming off by a nut 14 screwed to the tip. Accordingly, the connecting bolt 13 is attached to the connecting member 6 so as to be rotatable and movable along the slit 6d from one outer side to the other outer side of the virtual extension cylinder extending the outer shape of the first flange member 3. It has been. The first flange member 3 and the second flange member 5 are connected by the connecting member 6. Here, the first rod member 3 and the second rod member 5 are the direction in which the first screw member 2 c protrudes from the first rod member 3 and the second screw member 4 c with respect to the second rod member 5. Are connected by a connecting member 6 so that the direction in which the protrusions protrude is the same direction.

  In the present embodiment, the first flange member 3 has an outer diameter of 42.7 mm and a length of 2.5 m. Further, the second flange member 5 has an outer diameter of 27.2 mm and a length of 3.0 m. Moreover, in this embodiment, the 1st clamp 2 and the 1st attachment member 7, the 2nd clamp 4 and the 2nd attachment member 10, and the 1st collar member 3 and the connection member 6 are integrally attached by welding, respectively. .

  Next, the usage method of the attachment apparatus 1 of this embodiment is demonstrated. The attachment device 1 of the present embodiment is configured such that the second bolt member 5 is connected to the connecting bolt 13 in a state where the connecting bolt 13 at the tip of the second hook member 5 is moved to one of both ends of the slit 6d in the connecting member 6. It can be made into the folded state by making it rotate centering on and making it approach so that the 2nd collar member 5 and the 1st collar member 3 may overlap. In this folded state, it can be stored and transported. When attaching the attachment device 1 to the scaffolding column B of the scaffold A, the first clamp 2 is attached to the lower side and the first clamp 2 is attached to the scaffolding column B, and the scaffolding column B is positioned above the first clamp 2. Install the second clamp 4.

  The fall prevention member P is attached to the scaffold A by attaching the fall prevention member P so as to straddle the adjacent first heel member 3 in a state where the attachment device 1 is attached to the scaffold strut B standing at regular intervals. Can be installed.

  When attaching the attachment device 1 to the scaffold strut B adjacent to the adjacent scaffold strut B, the first screw member 2c of the first clamp 2 and the second screw member 4c of the second clamp 4 are close to each other. When not facing the B side, the first clamp 2 and the second clamp 4 are attached to the scaffold column B in the same manner as described above.

  On the other hand, when the first screw member 2c and the second screw member 4c are facing the adjacent scaffold column B side, the first screw member 2c and the second screw member 4c are close to each other in the same direction. The first clamp 2 and the second clamp 4 may not be attached due to contact with the column B. In that case, while the attachment apparatus 1 is folded, the second hook member 5 is rotated in the direction away from the first hook member 3 around the connecting bolt 13, and at the tip of the second hook member 5. The connecting bolt 13 is moved along the slit 6d from one end (the upper end in FIG. 5) of the slit 6d to the other end. And the 2nd collar member 5 is further rotated and it is made to approach the 1st collar member 3 on the opposite side to before rotating. Thereby, the 2nd collar member 5 will be in the state where the 1st collar member 3 was located in the lower side (the direction of the 1st screw member 2c and the 2nd screw member 4c is the same as before rotating the 2nd collar member 5) Is).

  In this state, when the attachment device 1 is rotated 180 degrees around the axis of the first rod member 3 (second rod member 5), the first rod member 3 is on the lower side and the second rod member 5 is on the upper side. The one screw member 2c and the second screw member 4c are in a state in which they are not facing the adjacent scaffold column B side. Therefore, while attaching the first clamp 2 to the scaffolding column B in the same manner as described above with the first clamp 2 on the lower side, attaching the second clamp 4 to the site above the first clamp 2 in the scaffolding column B, the mounting device 1 The fall prevention member P can be attached to the first rod member 3 by being attached to the scaffold column B (scaffold A).

  In the present embodiment, when the bulging portion 6e is positioned on the upper side of the connecting member 6, the first screw member 2c of the first clamp 2 and the second screw member 4c of the second clamp 4 are When the mounting device 1 is reversed and the bulging portion 6e is positioned on the lower side of the connecting member 6, the first screw member 2c and the second screw member 4c are in front of the page in FIG. The case where it will be in the state which turned to the side is illustrated. Therefore, the orientation of the first screw member 2c and the second screw member 4c can be recognized from the position of the bulging portion 6e. The bulging portion 6e of this embodiment corresponds to the “identification portion” of the present invention.

  Thus, according to the attachment device 1 of the present embodiment, unlike the conventional case, the first clamp 2 and the second clamp 4 can be attached to the first flange member 3 without removing the first clamp 2 and the second clamp 4 and reattaching them in the opposite direction. By rotating the second hook member 5, the direction of the first screw member 2c and the second screw member 4c can be changed without changing the vertical relation between the first hook member 3 and the second hook member 5. The first clamp 2 and the second clamp 4 can be easily attached to one of the adjacent scaffold columns B with the one clamp 2 facing down.

  Further, a slit 6d is formed in the connecting member 6 that extends outward from the tip of the first flange member 3, and the connecting bolt 13 that is the rotation center of the second flange member 5 is moved along the slit 6d. Since it is the structure to which it is made, when rotating the 2nd collar member 5 with respect to the 1st collar member 3, both do not interfere.

  Moreover, since both ends of the slit 6d are located outside the position away from the outer peripheral surface of the virtual extension cylinder extending the outer shape of the first flange member 3 by the radius of the second flange member 5, The attachment device 1 can be folded so that the first brim member 3 and the second brim member 5 overlap. Thereby, conveyance and storage of attachment device 1 are easy, without folding attachment device 1 being bulky.

  Further, since the connecting member 6 includes the bulging portion 6e on one end side of the distal end side 6c, the orientation of the first screw member 2c and the second screw member 4c is identified by the bulging portion 6e. Can do. Thereby, for example, the operator who is located on the connecting member 6 side can recognize the orientation of the first screw member 2c and the second screw member 4c by looking at the bulging portion 6e. In order to confirm the direction of the screw member 2c or the second screw member 4c, it is not necessary to move from the connecting member 6 side to the first clamp 2 or the second clamp 4 side, and the labor of the operator can be saved.

  In addition, in the attachment device 1, the outer diameter of the second collar member 5 is smaller than the outer diameter of the first collar member 3, so the outer diameter of the second collar member 5 is the same as the outer diameter of the first collar member 3. Compared with the case where it makes equal, the weight of the whole attachment apparatus 1 can be reduced, ensuring the intensity | strength of the 1st collar member 3 to which the fall prevention member P is attached.

  The present invention has been described with reference to the preferred embodiments. However, the present invention is not limited to the above-described embodiments, and various improvements can be made without departing from the scope of the present invention as described below. And design changes are possible.

  For example, in the above embodiment, the case where the slit 6d penetrating the connecting member 6 is provided and the connecting bolt 13 is inserted therein is illustrated, but the present invention is not limited to this, and the pair of connecting members 6 face each other. A groove may be formed on each of the surfaces, and the end of the connection bolt 13 (connection shaft) may be slidably inserted into the groove.

  Moreover, in said embodiment, although the connection member 6 fixed to the front-end | tip of the 1st collar member 3 was illustrated, it is not limited to this, One end part side is based on the axis | shaft parallel to the 1st volt | bolt 8. The belt is rotatably attached to the tip of the first flange member 3 and the other end is rotatably attached to the tip of the second rod member 5 by a connecting shaft parallel to the second bolt 11. It can be a plate-like connecting member.

  In the above embodiment, the case where the identification portion is provided on the connecting member 6 is illustrated, but the present invention is not limited to this, and the distal end side of the first flange member 3 or the distal end side of the second flange member 4 is not limited thereto. It can also be provided. Moreover, although the bulging part 6e of the bulging shape was illustrated as an identification part, it is not limited to this, It is good also as an identification part by a recessed part, an arrow, coloring, character notation, etc.

DESCRIPTION OF SYMBOLS 1 Fall prevention member attaching apparatus 2 1st clamp 2a 1st hinge pin 2b 1st clamping piece 2c 1st screw member 3 1st collar member 4 2nd clamp 4a 2nd hinge pin 4b 2nd clamping piece 4c 2nd screw member 5 2nd棹 member 6 connecting member 6d slit 6e bulging part (identification part)
8 First bolt (first shaft)
11 Second bolt (second shaft)
13 Connection bolt (connection shaft)
A Scaffolding B Scaffolding column P Fall prevention member

Japanese Utility Model Publication No. 63-127554

Claims (3)

A first clamp having a pair of first clamping pieces connected in an openable and closable manner by a first hinge pin, and a first screw member that fastens the distal ends of the pair of first clamping pieces;
A long rod-shaped first hook member to which a base end is attached to the first clamp and to which a fall prevention member is attached so as to be rotatable around a first axis perpendicular to the axial direction of the first hinge pin;
A second clamp having a pair of second clamping pieces connected to each other by a second hinge pin so as to be opened and closed, and a second screw member that fastens the distal ends of the pair of second clamping pieces;
A proximal end is attached to the second clamp so as to be rotatable around a second axis perpendicular to the axial direction of the second hinge pin and parallel to the first axis, and the first axis and the A long rod-shaped second rod member having a connecting shaft parallel to the second shaft;
The first hook member is attached to the tip of the first hook member so that the connecting shaft can rotate and is perpendicular to the connecting shaft, and the first hook member and one of the extension regions thereof and the other outer side A fall prevention member mounting device comprising a connecting member that connects the first hook member and the second hook member by supporting the first hook member so as to be movable between them. The connecting member is a flat plate orthogonal to the connecting shaft and extends outward from the tip of the first flange member, and extends from one outer side to the other outer side of the first flange member and its extension region. With a slit that
The fall preventing member mounting device according to claim 1, wherein the connecting shaft is slidably inserted into the slit. At least one of the distal end side of the first flange member, the distal end side of the second flange member, and the connecting member is provided with an identification portion for identifying the orientation of the first screw member and the second screw member. The fall prevention member mounting device according to claim 1 or 2, wherein the fall prevention member mounting device is provided.

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