JP5123757B2 - Bracket for mounting safety net - Google Patents

Description

  The present invention relates to a safety net mounting bracket used for a temporary scaffold.

  When building a house or the like, a temporary scaffolding is assembled around the building in order to construct the outer wall and the like.

  In addition, a net for preventing the fall of a tool or the like from a high place is stretched at a place where the space between the building periphery and the temporary scaffolding is large to ensure safety during construction.

  By the way, many large materials are carried into the building under construction, and when such large materials are carried into the building, there is a tension between the surroundings of the building and the temporary scaffolding. The established safety net may get in the way.

  In view of such a current situation, the present invention is an epoch-making that can be lifted up so as not to get in the way in a situation where the safety net gets in the way, and has excellent workability on the mounting support. A safety net mounting bracket is provided.

  The gist of the present invention will be described with reference to the accompanying drawings.

A net mounting arm 6 provided with a hook portion 5 capable of hooking a safety net 4 is projected from a wedge body 3 that can be mounted by inserting it into the wedge insertion portion 2 provided on the scaffolding column 1 from above. The net attaching arm 6 is pivotally attached to the wedge body 3 by a pivot shaft 13 so that the net 3 can be pivoted up and down, and the wedge body 3 is attached to the wedge insertion portion 2 of the scaffolding column 1. By activating and rotating the mounting arm 6, the net mounting arm 6 can be arranged along the scaffolding column 1, and the net mounting arm 6 is provided below the net mounting arm 6. A support arm 7 is provided between the scaffolding column 1 and the support arm 7 so as to support the net mounting arm 6 in a substantially horizontal projecting state with respect to the scaffolding column 1. This support arm is pivotally attached to the lower part. By rotating the arm 7, the support arm 7 is configured to be able to沿設disposed net attachment arm 6, the bottom of the net attachment arm 6, pivoting one end of the support arm 7 The support arm 7 is pivotally attached to the other end of the support arm 7 and is provided with a support abutting portion 8 that comes into contact with and separate from the scaffolding support 1. An opening stopper 9 that holds and holds the rotation angle of the net mounting arm 6 at a predetermined inclination angle is constructed, and the opening angle of the support arm 7 by the opening stopper 9 is set so that the wedge body 3 is The support arm 7 projects the net mounting arm 6 substantially horizontally with respect to the scaffold column 1 when the column contact unit 8 is contacted with the scaffold column 1 while attached to the wedge insertion portion 2 of the scaffold column 1. Set the angle to support the state and open this The stopper 9 is pivotally mounted on the net mounting arm 6 and the support arm 7 with one end pivoted to the net mounting arm 6 by the pivot shaft 13 and the other end pivoted to the support arm 7. In addition to the configuration, the opening stopper 9 is configured to be bendable, and the support arm 7 is rotated by bending the opening stopper 9 to be disposed along the net mounting arm 6. The present invention relates to a safety net mounting bracket characterized by being configured to be able to .

Moreover, the net attachment arm 6 is according to safety net mounting bracket according to claim 1 Symbol mounting characterized by comprising a telescopic adjusting mechanism 10.

  Since the present invention is configured as described above, it can be attached to the scaffolding strut simply by inserting the wedge body into the wedge insertion portion of the scaffolding strut from above, so that it can be attached to the scaffolding strut, and the existing wedge type By using the scaffolding pillar of the temporary scaffolding, the safety net mounting bracket can be easily attached to the temporary scaffolding and the safety net can be stretched, and the safety net can be hooked. Because the support arm supports the net mounting arm in a substantially horizontal protruding state, the net mounting arm and the support arm exhibit excellent load-bearing performance and are hooked on the net mounting arm. If the safety net can well receive heavy fallen objects and exhibits excellent safety, and if the safety net stretched around the building gets in the way, the net mounting arm The safety net can be flipped up by installing it along the scaffolding post, and the support arm can be rotated so that it does not get in the way and installed along the net mounting arm. This is an innovative safety net mounting bracket that is extremely practical.

Further, in the present invention , the support arm configured to support the net mounting arm in a substantially horizontal protruding state can be easily designed and realized, and the angle of the support arm with respect to the net mounting arm can be set by the opening stopper. Since the support arm is held at an angle that supports the scaffolding strut in a substantially horizontal protruding state, the support arm does not over-rotate more than necessary, and the wedge body is inserted into the wedge insertion portion to become the scaffolding strut. Following the mounting of the product of the present invention, the support arm's support abutment can be brought into contact with the scaffold support so that the net mounting arm can be set in a substantially horizontal projecting state. It is possible to fold the stopper so that the support arm can be rotated and installed along the net mounting arm. Na A safety net mounting bracket more practical to soo configuration.

Further, in the invention described in claim 2 , the net mounting arm is stretched and adjusted according to the interval between the building and the scaffolding column, or the net mounting arm is stretched and adjusted to correspond to a different size safety net. Therefore, the safety net mounting bracket can be more practical.

  Embodiments of the present invention that are considered suitable (how to carry out the invention) will be briefly described with reference to the drawings, illustrating the operation of the present invention.

  For example, when the wedge insertion part 2 is provided in the scaffolding column 1 of the temporary scaffold and the wedge body 3 of the present invention is inserted into the wedge insertion part 2 from above, the product of the present invention can be attached to the scaffolding column 1.

  When the support arm 7 of the present invention is installed between the net mounting arm 6 and the scaffolding column 1, the net mounting arm 6 is supported in a substantially horizontal protruding state with respect to the scaffolding column 1. become.

  In this way, the product of the present invention is attached to, for example, a plurality of scaffolding columns 1 of a temporary scaffold assembled around a building, and as shown in FIG. By hooking the safety net 4 on the hook portion 5, the safety net 4 can be stretched between the building periphery and the scaffolding column 1.

  Therefore, according to the present invention, as described above, the scaffold column 1 is simply inserted into the wedge insertion portion 2 of the scaffold column 1 and the support arm 7 is installed between the net mounting arm 6 and the scaffold column 1. Because it can be attached to, it is excellent in installation workability.

  Conventionally, a wedge-type temporary scaffold that can be attached by inserting a wedge body provided on a bracket for attaching a scaffolding plate into a wedge insertion part provided on a scaffolding column has been implemented. In the case of a temporary scaffold, the product of the present invention can be easily attached using the wedge insertion part 2 of the scaffold support 1 and the safety net 4 can be easily stretched.

  Further, since the support arm 7 provided at the lower portion of the net mounting arm 6 supports the net mounting arm 6 for hooking the safety net 4 in a substantially horizontal protruding state, the net mounting arm 6, the support arm 7, Excellent load-bearing performance, withstands heavy objects falling on the safety net 4 and exhibits excellent safety.

  In addition, when carrying large materials into the building, the safety net 4 stretched around the building may get in the way. In the present invention, the net mounting arm 6 is activated and rotated. By doing this, the net mounting arm 6 can be arranged along the scaffolding column 1 to jump up (fold) the safety net 4. At this time, the support arm 7 is also rotated to rotate the net mounting arm. Since the safety net 4 and the support arm 7 do not get in the way, it is possible to carry in materials and the like.

  Specific embodiments of the present invention will be described with reference to the drawings.

  The present embodiment is a safety net mounting bracket that can be attached to a scaffolding column 1 having a wedge insertion part 2 used in an existing wedge-type temporary scaffold, and the wedge insertion part provided on the scaffolding column 1 A net mounting arm 6 provided with a hook portion 5 capable of hooking a safety net 4 is provided on a wedge body 3 that can be mounted by being inserted into the upper portion 2 from above. Moreover, the scaffolding support | pillar 1 of drawing has shown the object for one side scaffolding.

  Specifically, as shown in FIG. 1, the wedge body 3 of the present embodiment is formed into a shape that has a substantially U-shaped cross section in plan view by bending the left and right portions of a single metal plate material at a substantially right angle. In addition, as shown in FIG. 2, the lower side part from the middle of the left and right bent plate parts is formed in a wedge shape that becomes wider in the front-rear direction in the side view, and the lower side part of the wedge body 3 is formed into a square shape. When the frame-shaped wedge insertion part 2 is inserted from above, the wedge insertion part 2 is wedged.

  Further, in the middle of each of the left and right free plate portions of the wedge body 3, a mounting plate portion 11 is integrally projected in the horizontal direction, and the net mounting arm 6 is interposed between the mounting plate portions 11. It is set as the structure which arrange | positions and arrange | positions a base end part in the clamping state.

  The net mounting arm 6 of this embodiment is formed in a round pipe shape having a length as shown in FIG.

  Further, the hook portion 5 is attached to the tip portion of the net mounting arm 6, while the hook portion 5 is also attached to the base portion of the mounting plate portion 11 to attach the net as shown in FIG. The safety net 4 can be stably hooked to the hook portion 5 at the tip of the arm 6 and the hook portion 5 at the base of the mounting plate 11.

Further, a square mounting portion 12 is projected from the base end portion of the net mounting arm 6, and the mounting portion 12 is arranged between the mounting plate portions 11 by a shaft bolt 13 as a pivot shaft 13. By pivotally attaching, this net mounting arm 6 protrudes from the wedge body 3 and is provided so as to be able to undulate and rotate in the vertical direction with respect to the wedge body 3 with a shaft bolt 13 as a fulcrum.

  Accordingly, the net attachment arm 6 is arranged along the scaffolding strut 1 by starting and rotating the net attachment arm 6 with the wedge body 3 attached to the wedge insertion portion 2 of the scaffolding strut 1. Thus, the safety net 4 hooked on the hook portion 5 of the net mounting arm 6 can be flipped upward (folded).

  Further, the net mounting arm 6 is configured so that when the net mounting arm 6 is installed along the scaffolding column 1, the tip of the net mounting arm 6 is installed in a state inclined to the scaffolding column 1 side. In a state where the net mounting arm 6 is disposed along the scaffolding column 1 (folded state), the center of gravity of the net mounting arm 6 is located on the side of the scaffolding column 1 from the shaft bolt 13 and can be easily rotated downward. It is set as the structure which does not do (refer FIG. 4).

  Reference numeral 21 in the figure denotes a chain mounting hole provided at the tip of the net mounting arm 6. Although not shown, when the net mounting arm 6 is flipped upward, For example, the attached chain 6 is wound around the scaffolding column 1 so that the net mounting arm 6 can be held in a flipped state.

  Therefore, according to the present embodiment, when a large material or the like is carried into the building, the safety net 4 stretched around the building may get in the way. In some cases, the safety net 4 can be flipped upward together with the net mounting arm 6 so as to be in an unfolded state.

  The net mounting arm 6 is provided with an expansion / contraction adjustment mechanism 10.

  Explaining the expansion / contraction adjusting mechanism 10, the net mounting arm 6 of this embodiment includes a first pipe body 14 having the mounting portion 12 at the base end portion, a smaller diameter than the first pipe body 14, and a distal end. And a second pipe body 15 having the hook portion 5 at a portion thereof, and a base end portion of the second pipe body 15 is slidably inserted into a distal end opening of the first pipe body 14, Then, a fastening bolt 16 for releasably tightening and fixing the second pipe body 15 is screwed in the vicinity of the distal end portion of the first pipe body 14, and the tightening bolt 16 is loosened so that the first pipe body 14 is loosened. The second pipe body 15 is slidable so that the total length of the net mounting arm 6 can be adjusted and the second pipe body 15 can be placed at an arbitrary position with respect to the first pipe body 14 by tightening the fastening bolt 16. The configuration is such that positioning is possible.

  Therefore, the net mounting arm 6 can be stretched and adjusted according to the distance between the building and the scaffolding column 1 (temporary scaffolding), the size of the safety net 4, and the like.

  Further, in this embodiment, the net mounting arm 6 is disposed between the net mounting arm 6 and the scaffolding column 1 at a lower portion of the net mounting arm 6 so that the net mounting arm 6 projects substantially horizontally with respect to the scaffolding column 1. A support arm 7 for supporting the state is provided.

  The support arm 7 is formed in a band plate shape, and one end of the support arm 7 can be raised and lowered in the vertical direction by a pivot shaft 20 at the lower end of the first pipe body 14 of the net mounting arm 6. A support abutting portion 8 is provided at the other end of the support arm 7 so as to be in contact with and away from the scaffolding support 1.

  In addition, the column abutting portion 8 is formed in a curved plate-like body that is synchronized with the shape of the outer peripheral surface of the column-shaped scaffolding column 1 and is configured to be able to stably contact the scaffold column 1. .

  Further, in a state where the wedge body 3 is attached to the wedge insertion portion 2 of the scaffolding column 1, the support arm 7 is set obliquely with respect to the net mounting arm 6 and the column contact portion 8 is brought into contact with the scaffolding column 1. The length of the support arm 7 or the attachment of the support arm 7 to the net so that the support arm 7 supports the attachment arm 6 in a substantially horizontal projecting state with respect to the scaffolding column 1 when contacted. For example, a pivot position on the arm 6 is set.

  Further, in the present embodiment, an opening stopper 9 that holds the rotation angle of the support arm 7 with respect to the net mounting arm 6 at a predetermined inclination angle is installed on the net mounting arm 6 and the support arm 7. At the same time, the support arm 7 is prevented from opening by the opening stop 9 so that the support abutment 8 is brought into contact with the scaffold support 1 while the wedge 3 is attached to the wedge insertion part 2 of the scaffold support 1. At this time, the support arm 7 is set to an angle that supports the net mounting arm 6 in a substantially horizontal projecting state with respect to the scaffolding column 1.

  The opening stopper 9 is composed of a belt-plate-like first link body 17 and a belt-plate-like second link body 18, and the ends of the first link body 17 and the second link body 18 are pivoted. The pivoting portion is used as a folding fulcrum portion 19 so that the folding fulcrum portion 19 can be bent into a U-shape, and one end of the stopper 9 (FIGS. 1 and 2). The upper end portion of the first link body 17 is pivotally attached to the mounting portion 12 at the base end portion of the net mounting arm 6 by the shaft bolt 13 and the other end portion (second link in FIGS. 1 and 2). The lower end portion of the body 18 is pivotally attached to the middle portion of the support arm 7. When the opening stopper 9 is substantially linear, the support arm 7 is held in the most downwardly widened state with respect to the net mounting arm 6. When the portion 8 is brought into contact with the scaffolding column 1, the support arm 7 supports the net mounting arm 6 in a substantially horizontal projecting state with respect to the scaffolding column 1.

  That is, the setting is completed by simply rotating the support arm 7 downward with respect to the net mounting arm 6 to the rotation limit (by simply making the opening stopper 9 substantially linear), and this is performed with respect to the scaffold column 1. Since the support arm 7 is in a state of supporting the net mounting arm 6 in a substantially horizontal protruding state, in this embodiment, the mounting work to the scaffolding column 1 is very easily performed.

  Further, when the opening stopper 9 is bent in a U-shape with the bent fulcrum portion 19 as a fulcrum, the support arm 7 is pivoted upward with the pivot shaft 20 as a fulcrum, thereby the net mounting arm 6. It is comprised so that it can be installed along the lower part of this substantially parallel.

  Therefore, as shown in FIG. 4, when the net 4 is flipped upward together with the net mounting arm 6, the support arm 7 can also be rotated and arranged along the net mounting arm 6. The support arm 7 is also configured to be in a folded state that does not interfere with the carrying of materials and the like. FIG. 4 shows a case where the net attachment arm 6 is disposed along the scaffolding column 1 in a contracted state.

  Note that the present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate.

It is a perspective view which shows a present Example. It is an explanatory side view showing the state where this example was attached to the scaffolding column. It is explanatory perspective view which shows the use condition of a present Example. FIG. 5 is an explanatory side view showing a folded state in which the net attachment arm is provided along the scaffold support and the support arm is provided along the net attachment arm in a state in which the embodiment is attached to the scaffold support.

DESCRIPTION OF SYMBOLS 1 Scaffolding support | pillar 2 Wedge insertion part 3 Wedge body 4 Safety net 5 Hook part 6 Net attachment arm 7 Support arm 8 Prop contact part 9 Opening stop
10 Telescopic adjustment mechanism
13 pivot axis

Claims (2)

A net mounting arm provided with a hook portion that can hook a safety net on a wedge body that can be mounted by inserting it into the wedge insertion portion provided on the scaffolding pillar from above, and this net mounting arm Is pivotally attached to the wedge body by a pivot shaft , and the net attachment arm is activated and rotated in a state where the wedge body is attached to the wedge insertion portion of the scaffolding column. A net mounting arm is constructed so that it can be installed along the scaffolding strut, and the net mounting arm is installed under the net mounting arm between the net mounting arm and the scaffolding strut. A support arm is provided to support the frame in a substantially horizontal projecting state with respect to the scaffolding strut, and the support arm is pivotally attached to the lower part of the net mounting arm, and the support arm is rotated to thereby support the support. Net the arm Configured to be沿設disposed on the mounting arm, against the bottom of the net attachment arm, pivotally mounted at one end of said support arm rotatably, to the scaffold posts at the other end of the support arm A strut abutting portion is provided for releasably abutting, and an opening stopper that holds the rotation angle of the support arm with respect to the net mounting arm at a predetermined inclination angle is installed on the net mounting arm and the support arm. In addition, the opening angle of the supporting arm by the opening stopping body is set such that the support abutting portion is brought into contact with the scaffolding column in a state where the wedge body is attached to the wedge insertion portion of the scaffolding column. The angle is set so that the arm supports the net mounting arm in a substantially horizontal projecting state with respect to the scaffolding column, and this opening stopper is pivotally attached to the net mounting arm by the pivot shaft and the other end is pivoted. Pivot on the support arm In addition, the net mounting arm and the support arm are constructed to be constructed, and the opening stopper is configured to be bendable, and the support arm is rotated by bending the opening stopper to rotate the support arm. A safety net mounting bracket configured to be installed along a net mounting arm . It said net attachment arm, the safety net mounting bracket according to claim 1 Symbol mounting characterized by comprising a telescopic adjusting mechanism.

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