JP6498349B1 - Morning glory device for temporary scaffold - Google Patents

Abstract

There is provided a morning glory device for a temporary scaffold which is highly safe and has no fear that a fallen object bounced back by a face material located at an end will fall from the side on the open side. A morning glory device for a temporary scaffold 1 is inclined upwardly with a rear end portion connected to a predetermined height position of a plurality of pillars S1 arranged on the front side portion of the temporary scaffold S with a space left and right. A plurality of vertical frame members 3, a face member 7 stretched across the vertical frame member 3 whose rear end is connected to the right and left columns S1, and a plurality of vertical frame members A side cover 10 provided between the vertical frame member 3 located at the end of the column 3 and the upper portion of the column S1 to which the rear end portion of the vertical frame member 3 is connected to the rear end portion of the column S1. It has. [Selection] Figure 1

Description

  The present invention relates to a morning glory device for a temporary scaffold that is installed in a projecting manner on a temporary scaffold and is used to prevent an accident due to a fall of materials, tools, and the like from the temporary scaffold.

As a morning glory device for a temporary scaffold, for example, as shown in Patent Document 1 below, a connecting member is attached to each of predetermined height positions of a plurality of columns arranged at intervals on the left and right in the front side portion of the temporary scaffold, The rear ends of the vertical frame members are connected to the connecting member so as to be rotatable about a horizontal axis extending from side to side, and the front ends and the rear ends of the two vertical frame members positioned in front of the two struts adjacent to the left and right The front horizontal frame member and the rear horizontal frame member are secured between the respective parts, and the face material is secured to the rectangular frame formed by both the vertical frame members, the front horizontal frame member and the rear horizontal frame member, The front end portion of the vertical frame member is connected to the front end portion of the vertical frame member so that the front end portion of the rod-like support member is rotatable about a horizontal axis extending from side to side, and the rear end of the support member is positioned below the connection member in each column. Parts holding Which member is attached is known.
The above equipment is usually installed and used so that the square frame with the face material is inclined forwardly (usually an inclination angle of 20 ° or more with respect to the horizontal plane), and the fallen object received by the face material Always bounces back to the temporary scaffold.

Japanese Patent No. 6360983

  However, in the morning glory device described above, falling objects received by the face material may be tilted and bounced to either the left or right side, but the side of the face material located at the end of the morning glory device is open, so There was a risk that the fallen object bounced off by the face material at the position would fall from the open side.

  The present invention has been made in view of the above-described problem, and there is no possibility that a fallen object that is bounced back by a face material located at the end will fall from the side of the open side, and is a highly secure temporary scaffold. The purpose is to provide a morning glory device.

In order to achieve the above object, the present invention comprises the following aspects.
In specifying the present invention, the side far from the building where the temporary scaffolding is installed (for example, the right side of FIG. 1) is called “front”, and the side near the building (for example, the left side of FIG. 1) is called “rear”. Also, “left and right” refers to the case seen from the front.

1) A plurality of vertical frame members that are installed in a slanted front-up state with a rear end portion connected to a predetermined height position of a plurality of support columns that are lined up at right and left intervals on the front side portion of the temporary scaffold, A face member that is stretched across a vertical frame member whose rear end portion is connected to the right and left columns, and a vertical frame member positioned at the end of a plurality of vertical frame members and the rear of the vertical frame member The morning glory device for temporary scaffolds provided with the side cover provided between the upper part rather than the rear-end part in the support | pillar to which an edge part is connected.

2) The rear end portion of the vertical frame member is connected to a predetermined height position of the column so as to be rotatable about a horizontal axis extending left and right, and the vertical frame member and the face material are swingable. The morning glory device for a temporary scaffold according to 1) above, wherein the part cover is made of a flexible sheet or net.

3) A plurality of mounting pins provided on the upper surface of the vertical frame member at an interval in the front-rear direction are fitted into the lower edge portion of the side cover, or the lower edge portion is used to fasten the lower edge portion to the vertical frame member. A plurality of eyelets through which a string is passed are provided at an interval in the front and rear direction, and a plurality of eyelets through which a string for fastening the rear edge to the column is passed to the rear edge of the side cover. The morning glory device for a temporary scaffold according to 2), provided at intervals.

  According to the morning glory device for a temporary scaffold of 1) above, since the side of the open side of the face material located at the end is covered with the side cover, it is positioned at the end like the morning glory device described in Patent Document 1 above. The fallen object received and bounced off by the facing material does not fall from the side of the open side, and the fall of the fallen object from the side is surely prevented by the side cover, and excellent safety is obtained.

  According to the morning glory device for a temporary scaffold of 2) above, since the side cover is made of a flexible sheet or net, the vertical frame member and the face material are swung without removing the side cover, and the installation angle It is possible to change quickly and close the work in a strong wind, and it is excellent in workability.

  According to the morning glory device for the temporary scaffold of 3) above, the side cover is provided with eyelets on the lower edge and the rear edge of the side cover. Easy to install.

1 is a side view of a morning glory device for a temporary scaffold according to an embodiment of the present invention. It is a top view of the apparatus. It is sectional drawing which follows the III-III line of FIG.

1 to 3 show the structure of a morning glory device (1) for a temporary scaffold according to an embodiment of the present invention.
Here, the temporary scaffold (S) shown in the figure is a wedge-tight scaffold, and the required number of struts (S1) are set up in two rows at the front and back, and spaced from side to side in each row. ing. A plurality of U-shaped socket fittings (S11) as viewed from above are welded and fixed at predetermined intervals in the vertical direction on the front, rear, left and right sides of the surface of each support column (S1). Wedge-shaped insert fittings that are suspended from the front and rear socket fittings (S11) facing each other at a predetermined height position of the two pillars (S1) arranged in the front and rear (S2). S21) is inserted from above, thereby connecting the columns (S1) and the crosspieces (S2). Hooks (S31) provided at the left and right ends of the tread board (S3) are hooked to the two side bars (S2) adjacent to the left and right, thereby the tread board (S3) is secured to both side bars (S2). It has been. A wedge-shaped insert fitting (shown in the figure) provided on the right and left socket fittings (S11) facing each other at the predetermined height position of the two struts (S1) adjacent to the left and right, and suspended from both ends of the handrail (S4) Abbreviation) is inserted, and thereby the handrail (S4) is prevented from passing between the two columns (S1).
The morning glory device according to the present invention is not limited to the temporary scaffolding (S) having the above-described structure, and can be installed on, for example, other wedge-tightened scaffolds with different types and arrangements of socket fittings, frame scaffolds, and single tube scaffolds. .

As shown in FIG. 1 to FIG. 3, the morning glory device (1) for the temporary scaffold according to this embodiment includes a plurality of struts (S1) that are arranged on the front side portion of the temporary scaffold (S) at intervals on the left and right. A connecting member (2) is attached to each of the predetermined height positions on the front side, and the rear end of the vertical frame member (3) is connected to each connecting member (2) so as to be rotatable about a horizontal axis extending from side to side. The front horizontal frame member (4) and the rear horizontal frame member (5 are respectively attached to the front end portions and the rear end portions of the two vertical frame members (3) located in front of the two columns (S1) adjacent to the left and right. ) Is secured, and the face material (7) is secured to the rectangular frame (6) formed by the two vertical frame members (3), the front horizontal frame member (4) and the rear horizontal frame member (5). The front end of the rod-like support member (8) is connected to the middle part (or front end) of each vertical frame member (3) so as to be rotatable about a horizontal axis extending from side to side, and each column (S1) On the front side of Holding member for holding the rear end portion of the connecting member (2) support the lower position than (8) (9) in which is mounted.
The vertical frame member (3) positioned at the end (left end) of the plurality of vertical frame members (3) and the rear end portion of the vertical frame member (3) are coupled via the coupling member (2). A side cover (10) is provided between the supporting column (S1) and an upper portion of the supporting column (S1). The side cover (10) covers the open side of the face member (7) located at the end (left end), that is, the left side space in FIG.

The connecting member (2) includes a vertical plate-like portion (21) and a U-shaped connecting portion (22) that opens forward as viewed from a plane provided continuously to the front edge of the vertical plate-like portion (21). I have.
A clamp (23) that can be fastened and fixed to the support post (S1) is attached to the vertical plate-like portion (21).
Inside the connecting portion (22), two insertion cylinders (24) into which the rear end portion of the vertical frame member (3) can be inserted are arranged side by side. Both insertion cylinders (24) are individually swingably connected to the connecting portion (22) by connecting shafts that pass through one end portions of these and loosely pass to the left and right side walls of the connecting portion (22). Yes.
The structure of the connecting member (2) is not limited to the above. For example, the rear end portion of the vertical frame member (3) is connected to the connecting portion (22) without providing the two insertion cylinders (24). May be directly attached. Instead of the clamp (23) or in addition to the clamp (23), a wedge-shaped insert fitting (not shown) that can be inserted into the socket fitting (S11) on the front side of the support post (S1) is connected to the connecting member (2). May be provided. Further, when the morning glory device (1) is small in size, the connecting member (2) and the holding member (9) may be integrated.

The vertical frame member (3) is made of a metal square tube or square bar, and its rear end is inserted into the insertion tube (24) of the connecting member (2), for example, by a lock pin (not shown). It is fixed to the insertion cylinder (24). Thereby, the vertical frame member (3) can swing up and down around the rear end.
As shown in FIG. 2, the vertical frame member (only on the inner side (right side) of the two insertion cylinders (24) of the connecting member (2) attached to the column (S1) located at the end (left end) ( 3) The rear end of the vertical frame member (3) is inserted into each of the two insertion cylinders (24) of the connecting member (2) attached to the support column (S1) located in the middle with the rear end inserted. Is done.
In addition, the vertical frame member (3) may be connected to each column (S1) one by one via a connecting member.

The front horizontal frame member (4) and the rear horizontal frame member (5) are also each made of a metal square tube material or square bar material, and these two end portions are adjacent to each other by appropriate connecting means. The member (3) is connected and fixed to the front end portion and the rear end portion thereof, thereby forming a rectangular frame (6).
Although illustration is omitted, a brace may be further provided as a structural material of the rectangular frame (6).
It is also possible to omit the front horizontal frame member (4) and the rear horizontal frame member (5).

The face material (7) is made of a square mesh sheet having a size capable of covering the square frame (6).
At the peripheral edge of the face material (7), it is provided on each upper surface of the two vertical frame members (3), the front horizontal frame member (4) and the rear horizontal frame member (5) constituting the rectangular frame (6). A plurality of eyelets (71) into which mounting pins such as an L-shaped pin (61) and a folding pin (62) are respectively fitted are attached (see FIG. 2). That is, by fitting the L-shaped pin (61) and the folding pin (62) of the square frame (6) into the eyelet (71) of the face material (7), the face material (7) is fitted into the square frame (6). Tensioned.
Further, the face material (7) has a protruding portion (72) protruding rearward from the rear horizontal frame member (5). The protruding portion (72) is folded upward and is attached to the two support columns (S1) with, for example, a string. The protruding portion (72) allows the face material (7) and the front side portion of the temporary scaffold (S) to be attached. There is no gap between them.
Instead of the mesh sheet, for example, a panel made of metal such as FRP or aluminum may be fastened to the rectangular frame (6) as the face material (7).

The support member (8) is made of a metal square tube material or square bar material.
The front end of the support member (8) is connected horizontally to a pair of left and right mounting brackets (31) that are suspended from the middle part (or front end) of the longitudinal frame member (3). The shaft is rotatably connected.
An engagement pin (11) is attached to the rear end of the support member (8).

The holding member (9) includes a rectangular tube portion (91) extending vertically and two vertical plate portions (92) vertically protruding from the rectangular tube portion (91). A clamp (93) that can be fastened and fixed to the support column (S1) is attached to each of the vertical plate portions (92). Instead of at least one of the clamps (93), a wedge-shaped insert fitting (not shown) that can be inserted into the socket fitting (S11) on the front side of the support post (S1) may be provided on the connecting member (9). .
Guide grooves (12) having a width that extends in the vertical direction and allows the shaft portion of the engagement pin (11) to pass through the left and right side walls of the rectangular tube portion (91) but cannot pass the head portion of the engagement pin (11). ) And a plurality of locking grooves (13) extending forward from a predetermined plurality (four in this case) of height positions in the guide groove (12). Similarly to the guide groove (12), each locking groove (13) has a width that allows the shaft portion of the engagement pin (11) to pass therethrough but prevents the head portion of the engagement pin (11) from passing therethrough. Then, the engagement pin is moved in accordance with the movement of the rear end portion of the support member (8) in the vertical direction according to the predetermined plural (here, four) swing angles of the vertical frame member (3). The shaft portion of (11) can be locked by the edge of the bottom portion of each locking groove (13). The swing angle of the vertical frame member (3), that is, the installation angle of the rectangular frame (6) with the face material (7) is set to be larger than 20 ° with respect to the horizontal plane.

The side cover (10) is preferably composed of a flexible sheet or net, specifically a mesh sheet, for example. If the side cover (10) is flexible, the vertical frame member (3) can be swung to change the installation angle of the rectangular frame (6) with the face material (7) or to close when the wind is strong. When doing so, it is not necessary to remove the side cover (10) one by one, and the swinging operation can be performed quickly. When the vertical frame member (3) is of a fixed type that does not swing, the side cover (10) may be made of a material that does not have flexibility, such as an FRP panel.
The shape of the side cover (10) is not particularly limited. For example, it is a triangle as shown in FIG. As the triangular side cover 10, for example, as shown in FIG. 1, a substantially right triangle whose upper edge is substantially horizontal can be used, or a triangle whose upper edge can be inclined upward is also possible.
A plurality of eyelets (101) are provided on the lower edge of the side cover (10) at intervals in the front-rear direction. By inserting a plurality of L-shaped pins (mounting pins) (61) provided on the upper surface of the vertical frame member (3) into these eyelets (101), the lower edge of the side cover (10) Can be attached to the vertical frame member (3). If the vertical frame member (3) does not have mounting pins such as L-shaped pins, the vertical frame is passed through the side cover (10) and the eyelet (101) at the lower edge of the side cover (10) through a string (not shown). The lower edge portion of the side cover (10) may be attached to the vertical frame member (3) by being tied to the member (3).
In addition, a plurality of eyelets (101) are also provided on the rear edge of the side cover (10) at intervals in the vertical direction. By tying these eyelets (101) through the string (14) to the column (S1), the rear edge of the side cover (10) can be easily attached to the column (S1).
Although not shown, when the right side of the face material located at the right end of the morning glory device (1) is open, the same side as above between the vertical frame member at the right end position and the column. A part cover is provided.

As shown in FIG. 1, inverted U-shaped string attachment portions (32) and (81) are respectively provided at the front end portion of the vertical frame member (3) and the intermediate length portion of the lower surface of the support member (8).
Then, the string (17) having one end attached to the string attaching part (32) of the vertical frame member (3) is held between two adjacent struts (S1) at an upper position than the connecting member (2). The handrail (S4) is hooked from above and hung downward, and the other end of the string (17) is attached to the string attaching part (81) of the support member (8). An operator who rides the string (17) on the tread (S3) can adjust the inclination angle of the square frame (6) with the face material (7) by pulling it downward or pulling it upward. it can.
During strong winds such as typhoons, the above-mentioned string (17) is operated and the square frame (6) with the face material (7) is swung to a position where it is closed substantially vertically upward as shown by a two-dot chain line in FIG. Take measures such as removing the face material (7) from the rectangular frame (6) as necessary.

  According to the morning glory device (1) for the temporary scaffold described above, even when the fallen object received by the face material (7) at the left end position shown in FIG. By hitting the cover (10), it is prevented from falling further downward, so that higher safety can be obtained.

The present invention is not limited to the above-described embodiment, and can be implemented with appropriate modifications without departing from the gist of the present invention described in the claims.
For example, the vertical frame member may be supported by pulling from above with a wire or the like in addition to being supported by the support member as described above. In addition to moving the engaging pin at the lower end to change the angle of the vertical frame member as described above, the support member is fixed so that the lower end is not moved, and the support member has a telescopic mechanism. Thus, the angle of the vertical frame member can be made variable.

  The present invention is suitably used as a morning glory device that is installed in a projecting manner on a temporary scaffold and prevents accidents caused by dropping of materials, tools, etc. from the temporary scaffold.

(S): Temporary scaffolding
(S1): Prop
(1): Morning glory device for temporary scaffold
(2): Connecting member
(3): Vertical frame member
(4): Front horizontal frame member
(5): Rear horizontal frame member
(6): Rectangular frame
(61): L-shaped pin (mounting pin)
(7): Face material
(8): Support member
(9): Holding member
(10): Side cover
(101): Eyelet

Claims (3)

  A plurality of vertical frame members that are installed in a slanted front-up direction with a rear end portion connected to a predetermined height position of a plurality of support columns that are lined up on the front side portion of the temporary scaffold with left and right intervals, and left and right A face member that is stretched across a vertical frame member whose rear end portion is connected to adjacent struts, and a vertical frame member positioned at an end of a plurality of vertical frame members and a rear end portion of the vertical frame member The morning glory device for temporary scaffolding provided with the side cover provided between the upper part rather than the rear-end part in the support | pillar which is connected.   The rear end portion of the vertical frame member is connected to a predetermined height position of the column so as to be rotatable about a horizontal axis extending left and right, and the vertical frame member and the face material are swingable, and the side cover is The morning glory device for a temporary scaffold according to claim 1, comprising a flexible sheet or net.   A plurality of mounting pins provided on the upper surface of the vertical frame member at an interval in the front-rear direction are fitted on the lower edge of the side cover, or a string for fastening the lower edge to the vertical frame member A plurality of eyelets that are passed through are spaced at the front and back, and a plurality of eyelets that are passed through the rear edge of the side cover and a string for fastening the rear edge to the support are vertically spaced The morning glory device for a temporary scaffold according to claim 2, wherein the morning glory device is provided.

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