JP3363411B2 - Supporting device for fall prevention plate and supporting structure of supporting device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fall prevention plate support for preventing tools, scaffolding members, and the like used at a construction site from falling to the ground, a support structure for the support, and a support structure for the support. It relates to a reinforcing structure.

[0002]

2. Description of the Related Art Conventionally, at a construction site, etc., after a scaffold is assembled, a fall prevention plate for preventing tools, scaffolding members, and the like from falling further on the outer periphery of the scaffold (in the industry, this equipment is generally referred to as "asagami"). Called). This is to prevent the worker from falling to the ground by the fall prevention plate installed when the worker slips his hand and drops it. In addition, the fall prevention plate is provided with an inclination such that the upper surface of the fall prevention plate faces inward so that the tool bounced on the plate does not jump outward.

As a conventional mounting method for disposing such a fall prevention plate, for example, there is a method of suspending a frame on which the fall prevention plate is placed.
As shown in FIG. 8, this is to support the fall prevention plate 53 by a main body frame 52 basically composed of a mounting frame 50 and a hanging frame 51. The tips of the mounting frame 50 and the suspension frame 51 are rotatably connected to each other. First, the first clamp device 55 in which the base end of the mounting frame 50 is engaged with the support column 54 is attached. And the hanging frame 51
The second clamp device 56 with its proximal end engaged is attached above the first clamp device 55. At this time, the second clamp device 5 is arranged so that the tip of the mounting frame 50 is located above the mounting position of the first clamp device 55.
Adjust the position of 6. That is, the fall prevention plate 53
Is mounted on the mounting frame 50 and is adjusted to face inward. In this way, the main body frame 52 is sequentially attached, the L-shaped frames 57 and 58 that also serve as reinforcement are passed between both ends of the adjacent mounting frames 50, and finally the fall prevention plate 53 is placed on the mounting frame 50 and is L-shaped. Frame 5
Place between 7,58.

[0004]

As described above, the conventional attachment work of the fall prevention plate has been troublesome because the main body frame 52 has to be attached to the support column 54 by the clamp devices 55 and 56, respectively. Further, when the mounting positions of the clamp devices 55 and 56 are displaced between the adjacent main body frames 52, rattling occurs when the fall prevention plate 53 is placed, and therefore the clamp devices 55 and 5
It was necessary to accurately determine the mounting position of 6, and it took time to mount the fall prevention plate 53. An object of the present invention is to provide a support device for a fall prevention plate, a support structure for the support device, and a reinforcement structure for the support structure, in which the fall prevention plate can be installed easily and quickly.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the invention according to claim 1 includes an arm on which a fall prevention plate is placed, and an arm having a tip fixed to a back surface of the arm. A triangle-shaped frame is formed by the cheeks supporting diagonally from below and the connecting member that connects and fixes the rear side of the arm and the cheeks. A support member for preventing the slippage is provided, and an insert piece is fixed to the frame-shaped body to form a support tool for the fall prevention plate, which is also supported by the hanging frame formed on the peripheral surface of the scaffolding column. Insert the insert piece of the tool and hook it, and the support tool is attached to the scaffolding pillar with the insertion piece hooked on the hanging frame, and in the same mounted state, the arm is from the scaffolding pillar. The point is that it is extended diagonally upward. To the effect.

In order to achieve the above-mentioned object, the invention according to claim 2 supports the arm on which the drop prevention plate is mounted and the cheek which has the tip fixed to the back surface of the arm from diagonally below. A triangular frame-shaped body is formed by the retaining member and the connecting member that connects and fixes the rear portion of the arm and the cheek member together, and drops onto the arm.
An insertion piece provided with a support member for preventing downward displacement of the prevention plate , and being inserted into and locked by the first locking frame formed on the peripheral surface of the scaffolding strut in the frame-shaped body. The frame-like body is attached to the scaffolding column with the insertion piece hooked to the first latching frame, and the arm is diagonally upward from the scaffolding column in the same mounting state. A support for a fall prevention plate extending toward each side, wherein a second hooking frame is formed on each of both side surfaces of the frame-like body, and a beam which is detachable between adjacent second hooking frames. The gist of the invention is that the arms and the upper ends of the beam members are arranged on the same plane in the state of being connected by the members and the beam members being connected. According to a third aspect of the present invention, an arm on which the fall prevention plate is placed, a cheeks member whose front end is fixed to the back surface of the arm and which obliquely supports the arm, and a rear portion of the arm and the cheeks member A triangular frame-shaped body is formed by a connecting member for connecting and fixing the frame, and a supporting member for preventing downward movement of the fall prevention plate is provided on the arm, and the frame-shaped body supports the scaffolding column. The insertion piece that is inserted and locked to the first locking frame that is formed on the peripheral surface of the is fixed to the first locking frame, and the insertion piece is locked to the first locking frame in the same frame shape. The body is attached to the scaffolding column, and in the same mounted state, the arm is a fall prevention plate support that extends obliquely upward from the scaffolding column. Form a second latch frame and attach and detach between adjacent second latch frames Said second hooking frame in a state of being connected to the beam members while connected by the ability of the beam member as its gist that the above top surface of the arms so as not to protrude upward. The gist of the invention described in claim 4 is that, in addition to the configuration of the invention described in claim 3, a pressing member for preventing the upper side of the fall prevention plate from being lifted is provided on the arm . Further, in the invention according to claim 5, an arm on which the fall prevention plate is placed, a cheek member having a tip fixed to the back surface of the arm and supporting the arm obliquely from below, and the arm and the cheek member. A triangular frame-shaped body is formed by the connecting member that connects and fixes the rear side, and the insert piece fixed to the frame-shaped body is inserted into the hanging frame formed on the peripheral surface of the scaffolding pillar. In a fall prevention plate support which is attached to the scaffolding column by being hooked and extends obliquely upward from the scaffolding column, a downward direction of the fall prevention plate on the arm. The gist of the present invention is that a supporting member for preventing the shift is provided. A sixth aspect of the present invention is characterized in that, in addition to the structure of the fifth aspect, a holding member is provided on the arm to prevent the upper side of the fall prevention plate from being lifted.

[0007]

According to the invention described in claims 1 to 6, sufficient strength can be provided by forming the frame-like body with the arm, the cheeks member, and the connecting member, and the insertion piece can be hooked on the hooking frame. The fall prevention plate can be placed in a state in which it can be placed just by stopping it, and the fall prevention plate can be easily and quickly arranged around the scaffold.
Further, the support means prevents the fall prevention plate from shifting downward. According to the second aspect of the invention, in addition to the effects of the above invention, when the fall prevention plate is placed on the arm and the beam member, the fall prevention plate supported by these does not rattle. In addition to the effects of the above invention, the invention according to claim 4 or 6 can prevent the upper side of the fall prevention plate from being lifted.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION A support device for a fall prevention plate, a support structure for the support device, and a reinforcing structure for the support structure according to an embodiment of the present invention will be described below with reference to the drawings. In the present embodiment, “front” means rightward in FIGS. 1 and 2, and “rear” means leftward. Left and right mean the left and right direction in FIG. First, the fall prevention plate support 10 (hereinafter, simply referred to as the support 10) will be described. As shown in FIGS. 1 to 3, the steel connecting frame 11 has a support metal fitting 12 fixed to an upper end surface formed in a rectangular cross section and obliquely cut. In the present embodiment, this cutting angle θ is 3
It is set to 0 degrees. The support fitting 12 includes an abutment wall 12a and a mounting surface 12b. The support fitting 12 seals the upper part of the connection frame 11 and supports a fall prevention plate 31 which will be described later and is placed. Connection frame 1
A base end of an arm 13 made of steel is fixed near the upper end of 1. The arm 13 has a cylindrical shape with a circular cross section, and has an elevation angle λ of 30 degrees, which is the same as the cutting angle θ, and extends forward. A base end of a steel cheeks frame 15 is fixed near the lower end of the connecting frame 11. The cheeks frame 15 has a cylindrical shape with a circular cross-section having a diameter slightly smaller than that of the arm 13, and its tip is fixed to the front rear surface of the arm 13. As a result, the connecting frame 11 and the arm 13
Also, the cheek frame 15 constitutes a frame-shaped frame 17 having a triangular shape.

A pair of left and right beam retaining frames 18 are formed at the front and rear of the arm 13, respectively. Each beam retaining frame 18 serving as a second retaining frame includes a first side plate 18a and a front plate 18
b, the second side plate 18c, and has a generally U-shaped cross section. The beam retaining frame 18 is arranged at the center of the vertical width of the arm 13. A front frame 19 having a rectangular cross section is fixed to the front end of the arm 13. A holding member 20 is fixed to the rear surface of the front frame 19. The retainer 20 supports a fall prevention plate 31 which will be described later and is inserted in a gap with the arm 13. On the rear surface of the connection frame 11, insert piece frames 21 protruding rearward are fixed at two positions near the upper and lower ends. The steel insert piece frame 21 has a cylindrical shape with a circular cross section, and the insert pieces 22 are formed at the tip (rear side) thereof so as to protrude downward. The insertion piece 22 is formed in a tapered wedge shape.

Next, the scaffolding column 25 and the fall prevention plate 3 for mounting the thus constructed support tool 10 thereon.
1 will be described. As shown in FIGS. 1 to 4, the scaffolding column 25 has a cylindrical shape with a circular cross section, and
A support tool locking frame 26 as a first locking frame for locking the insertion piece 22 is formed on the outer periphery thereof. Each latching frame 26 includes a first side plate 26a, a front plate 26b, and a second side plate 2
6c, and has a generally U-shaped cross section. The pair of retaining frames 26 are arranged at positions facing each other by 180 degrees, and the pair of retaining frames 26 are vertically displaced with respect to the pair of retaining frames 26 and displaced by 90 degrees with respect to the other pair of retaining frames 26.
Are arranged. That is, the hooking points 27 formed with the hooking frames 26 facing in all directions are arranged at predetermined intervals in the vertical direction. A rectangular plywood panel (so-called control panel) well known in the present embodiment as the fall prevention plate 31.
Is used.

Next, the procedure of mounting the support 10 on the scaffolding column 25 and placing the fall prevention plate 31 on the arm 13 of the scaffolding column 25 will be described. As shown in FIG. 4, the scaffolding posts 25 are arranged at predetermined intervals in a state in which the scaffolding is assembled.
Is erected. As shown in FIG. 2, each scaffolding post 25
The hanging points 27 of are arranged at the same height in the horizontal direction. At this time, the upper and lower insertion pieces 22 of the support tool 10 are inserted into the support tool locking frames 26 facing outwardly with respect to the two upper and lower locking points 27. Then, both insertion pieces 22 are hooked by the same hanging frame 26, and the frame-shaped frame 17 is cantilevered and supported by the same scaffolding pillar 25. The arm 13 is supported from below by the cheek frame 15, and the frame-shaped frame 17 as a whole has a truss structure and has high rigidity.

In this supported state, the connecting frame 11 is arranged parallel to the scaffolding column 25, and the arm 13 is arranged at an elevation angle of 30 degrees with respect to the horizontal direction. And
As shown in FIG. 4, a reinforcing beam 32 as a beam member is mounted between each of the supports 10 thus supported. The reinforcing beam 32 is constituted by a cylindrical pipe 34 as a main body having the same diameter as that of the arm 13 and an insertion piece 33 as a second insertion piece formed in a tapered wedge shape fixed to both ends thereof. Insert piece 33
Are formed in a tapered wedge shape, and the tips of both insertion pieces 33 are arranged so as to face the same direction. Reinforcement beam 32
Is hooked by inserting the insertion piece 33 from the outside (upper side in FIG. 4) between the opposite beam hooking frames 18 of the adjacent arms 13. When the mounting of the reinforcing beam 32 is completed, the fall prevention plate 31 is placed on the arm 13 and the reinforcing beam 32. At this time, the arm 13 in contact with the fall prevention plate 31 and the upper ends of the reinforcing beams 32 are arranged on the same virtual plane. Therefore, there is no step difference between the arm 13 and the reinforcing beam 32, and the plate 31 does not rattle. The plate 31 is sandwiched between the pressing fitting 20 and the arm 13 and abuts against the abutment wall 12 a of the fitting 12 to be supported.

With this structure, the following effects are achieved in this embodiment. (1) Since the truss structure is formed by the frame 17 having a triangular shape, it is possible to provide the support 10 that is strong and has a strong rigidity even though it is supported by a cantilever. (2) The support 10 can be mounted on the scaffolding pillar 25 simply by inserting the insertion piece 22 into the support retaining frame 26, which enables extremely quick installation. (3) When the conventional fall prevention plate 53 is supported as described above, the mounting frame 50 and the hanging frame 51 are individually attached to the columns 54 by the clamp devices 55 and 56. Therefore, the clamp device 55,
There was a case where the fall prevention plate 53 placed on the mounting plate was rattled due to the displacement of the position of 56. However, in the above-described embodiment, since the positions of the hooking points 27 provided on the scaffolding pillars 25 are aligned and the support tool 10 is also unified in a certain shape, the mounting position of the support tool 10 and the arm 13 are fixed. The extension angles will be neatly aligned. Therefore, the fall prevention plate 31 placed does not rattle. (4) Adjacent supports 10 are laterally connected by the reinforcing beams 32, and a structure having extremely high rigidity can be obtained as a structure for supporting the fall prevention plate 31. (5) Further, the reinforcing beam 32 can be easily attached to the beam retaining frame 18 of the arm 13 only by inserting the insertion piece 33, and the support structure can be reinforced very quickly.
Further, since the beam retaining frame 18 is arranged on the side surface of the arm 13 without projecting upward, it does not interfere with the fall prevention plate 31 placed on the arm 13. (6) Since the reinforcing beam 32 and the arm 13 have the same diameter, the fall prevention plate 31 placed on these does not rattle due to the difference in height between the two.

The present invention is not limited to the above embodiment, but can be modified and embodied as follows. -As shown in Figs. 5 (a) and 5 (b), instead of the lower insertion piece 22 in the support tool 10 of the above-described embodiment, a contact-shaped abutment frame 41 that abuts from the lateral side of the scaffolding pillar 25.
May be formed. In the above embodiment, the beam retaining frame 1 is provided on the side of the arm 13.
As shown in FIG. 1, a total of four front and rear two are provided. However, as shown in FIG. 6, it is possible to use only one place and two in total. Moreover, you may make it provide three or more places. Further, as shown in FIG. 7, the base end sides of the arm 13 and the cheek frame 15 may be extended and the connecting frame 11 may be interposed therebetween. Even with such a configuration, the support tool 10 has a truss structure with the frame frame 17 having a triangular shape, and has strong rigidity despite being supported by a cantilever. In the above-mentioned embodiment, the holding metal fitting 20 prevents the upper portion of the fall prevention plate 31 from being lifted and the supporting metal fitting 1
2 is to prevent the plate 31 from being displaced downward. Alternatively, the pressing metal fitting 20 may be omitted and only the supporting metal fitting 12 may be used.

[0015]

[Brief description of drawings]

FIG. 1 is a plan view showing a state where a fall prevention plate support according to an embodiment of the present invention is attached to a scaffolding column.

FIG. 2 is a side view of the same support attached to a scaffolding column.

FIG. 3 is a front view of the same support attached to a scaffolding column.

FIG. 4 is a plan view illustrating a state in which a plurality of the same support tools are mounted on a scaffolding column and reinforced with a reinforcing beam.

5A and 5B are (a) a side view and (b) a plan view of the support for a fall prevention plate according to another embodiment, taken along the line AA of (a).

FIG. 6 is a plan view of the scaffolding bracket of the same embodiment.

FIG. 7 is a view showing a scaffolding set for architecture of the same embodiment, and is a plan view in a state where a scaffolding bracket is attached to a support and a scaffolding plate is attached to the scaffolding bracket.

FIG. 8 is a perspective view of a conventional fall prevention plate support in a mounted state.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Fall prevention plate support tool, 11 ... Connection frame as a connection member, 13 ... Arm, 15 ... Cheeks frame as a cheek member, 17 ... Frame-shaped frame as a frame-shaped body, 18 ... Engagement part, Beam retaining frame as a second retaining frame, 22 ... Inserting piece, 25 ... Scaffolding column, 26 ...
Support tool retaining frame as a first retaining frame, 32 ... Reinforcement beam as a beam member.

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E04G 21/32 E04G 03/08 E04G 05/06 E04G 07/22

Claims (6)

(57) [Claims] 1. An arm for mounting a fall prevention plate,
A triangular frame-shaped body is formed by a cheeks member that has the tip fixed to the back surface of the arm from diagonally below and a connecting member that connects and fixes the rear side of the arm and the cheeks member. , A support member for preventing downward displacement of the fall prevention plate is provided on the arm, and an insert piece is fixed to the frame to form a fall prevention plate support tool, which is used to Insert the insert piece of the support tool into the hook frame formed on the surface to lock it, and in the state where the insert piece is locked to the lock frame, the support tool is attached to the scaffolding column. The support structure for a fall prevention plate support, wherein the arm extends obliquely upward from the scaffolding column in the same mounted state. 2. An arm for mounting a fall prevention plate,
A triangular frame-shaped body is formed by a cheeks member that has the tip secured to the back surface of the arm from diagonally below, and a connecting member that connects and fixes the arm and the rear part of the cheeks member. , Fall prevention on the same arm
Providing a support member to prevent downward displacement of the plate ,
An insertion piece that is inserted into and locked by the first locking frame formed on the peripheral surface of the scaffolding pillar is fixed to the frame-shaped body, and the insertion piece serves as the first locking frame. The frame-shaped body is attached to the scaffolding column in a hooked state, and the arm in the attached state is a fall prevention plate support in which the arm extends obliquely upward from the scaffolding column. Second locking frames are formed on both side surfaces of the frame body, and adjacent second locking frames are connected by detachable beam members and the arms are connected to each other. And a support member for a fall prevention plate, characterized in that the upper ends of the beam members are arranged on the same plane. 3. An arm for mounting the fall prevention plate,
A triangular frame-shaped body is formed by a cheeks member that has the tip secured to the back surface of the arm from diagonally below, and a connecting member that connects and fixes the arm and the rear part of the cheeks member. , Fall prevention on the same arm
Providing a support member to prevent downward displacement of the plate ,
An insertion piece that is inserted into and locked by the first locking frame formed on the peripheral surface of the scaffolding pillar is fixed to the frame-shaped body, and the insertion piece serves as the first locking frame. The frame-shaped body is attached to the scaffolding column in a hooked state, and the arm in the attached state is a fall prevention plate support in which the arm extends obliquely upward from the scaffolding column. A second retaining frame is formed on each of both side surfaces of the frame body, and adjacent second retaining frames are connected to each other by a detachable beam member and the beam members are connected to each other. A support structure for a fall prevention plate support, wherein the hooking frame 2 does not project upward beyond the upper surface of the arm. 4. A support member for a fall prevention plate according to claim 1, wherein a holding member is provided on the arm to prevent the fall prevention plate from being lifted up. Support structure. 5. An arm on which a fall prevention plate is placed, a cheeks member having a front end fixed to the back surface of the arm and which obliquely supports the arm, and a rear side of the arm and the cheeks member are connected to each other. By forming a triangular frame-shaped body with the connecting member to be fixed, by inserting the insertion piece fixed to the frame-shaped body into the locking frame formed on the peripheral surface of the scaffolding pillar, and locking it. A support for a fall prevention plate, which is mounted on the scaffolding support and extends obliquely upward from the scaffolding support, prevents downward displacement of the fall prevention plate on the arm. A support device for a fall prevention plate, characterized in that a support member is provided. 6. The fall prevention plate support according to claim 5, wherein a holding member is provided on the arm to prevent the fall prevention plate from being lifted up.