Patent Application
20190063085
The present invention relates to a bridge plank, which is applicable to construction sites by placing on scaffolds or support frames to allow construction workers to walk thereon.
Metal scaffolds are generally erected at construction sites, with typical metal planks placed on each layer of scaffold materials to allow construction workers to walk back and forth thereon to work. These typical metal planks comprise of a main board, a left wall and a right wall respectively folded down the two edges of the main board, and end caps respectively covering the front and back ends of the main board; wherein, the main board and the left and right walls are generally molded integrally, and a hollow frame is outlined by the two end caps at both ends, the left and right walls and the main board. The end caps and the left and right walls are typically formed by a continuously-bent metal sheet and usually, in order to save costs, the left and right walls are formed from the metal sheets being continuously bent but fail to make contact with the bottom of the main board or the inner walls of the main board. By adopting such structure, there are two main defects: First, since the left and right walls fail to make contact with the inner walls or the bottom of the main board, the overall strength of the main board is reduced; Second, when workers transfer the bridge plank, their fingers are likely to be injured by the metal edges of the bent sides, below the main board, on the end caps at the front and back, as well as the left and right walls; as a result, the chances of injuries with the current design are consequently increased.
The objective of the present invention is to solve the above-mentioned problems by providing a bridge plank, of which is applicable to all construction sites. This plank, with inner walls located on the left and right sides of the main board and upper ends extending upwards until the edges of the inner walls make contact with the bottom of the main board, strengthens the overall rigidity of the main board and completely eradicates potential safety hazards.
To fulfill the above objective, the technical scheme adopted by the present invention is as follows: a bridge plank applicable to construction sites comprises of a main board, with left and right walls respectively tucked into the bottom of the main board, and the left and right walls are integrally molded with the main board in one-piece; with the front and back ends of the main board each provided with an end cap. The left and right walls are identical in structure with each inclusive of an outer wall, and bottoms of the outer walls are bent inwardly toward the main board to form a lower bent footing parallel to the main board, while tail ends of the lower bent footing are bent upwards to form inner walls, and lastly, edges of the metal sheet form the inner walls as the edges fold in and make contact with the bottom of the main board.
Preferably, the overall bridge plank will each comprise of an outer wall, with the bottoms of the outer walls bent towards the inside of the main board to form lower bent footing parallel to the main board, and tail ends of the lower bent footing are bent upwards to form inner walls, and top ends of the inner walls are bent to form hand protection boards since the tail ends are securely in contact with the inner walls of the main board.
Furthermore, the tail ends, being in contact with the inner walls of the main board, of the hand protection boards are bent to form attaching boards, and the attaching boards are attached to the inner walls of side boards of the bridge plank.
A plurality of reinforcing ribs are tucked in at the bottom of the main board, located between the left and right walls, and parallel to the end caps.
The bridge plank applicable to construction sites has the following technical effects. The outer walls of the left and right boards are formed by bending from the main board all in one-piece to form the inner walls, with the edge of the planks tucked in and making contact with the bottom of the main board; meanwhile, the outer walls of the end caps at the front and back ends of the main board are bent in one piece to form hand protections, and the footing of these hand protection sides then make contact with the inner walls. When the bridge plank is transferred, the hands of workers will directly make contact with the surfaces of the inner walls or the surfaces of the footing of the board's sides instead of making contact with the raw edges of the inner walls or the upper edges of the inner walls, this design protects the hands of the workers against injuries. Compared with the prior art, the design of the bridge plank is both strengthened in rigidity as well as completely eradicating potential safety hazards.
To make those skilled in this technical field have a better understanding of the scheme of the present invention, a further detailed description of the present invention is given as follows in combination with the drawings and embodiments.
As shown in
In order to be more tightly attached to the inner walls of the outside of the end caps 4, the tail ends, in contact with the inner walls of the end caps 4, of the hand protection boards 44 are bent to form attaching boards 45, and the attaching boards are attached to the inner walls of the end caps.
The left wall 2 and the right wall 3 of the main board are identical in structure. Herein, the structure of the left wall 2 and the right wall 3 is described with the left wall 2 as an example. The left wall 2 and the right wall 3 each comprises of an outside wall 21. Namely, the left wall comprises of an outside wall 21, wherein a bottom of the outside wall is bent towards the inside of the main board to form a lower bent side board 22 parallel to the main board, and a tail end of the lower bent side board is bent upwards to form an inside wall 23, with a top edge of the inside wall making direct contact with the bottom of the main board.
A plurality of reinforcing stiffeners 5 are disposed at the bottom of the main board 1, located between the left wall 2 and the right wall 3 and are parallel to the end caps 4.
Although the present invention is described with the embodiments, those ordinarily skilled in this field would appreciate that various transformations and alterations of the present invention can be made without deviating the spirit of the present invention, and all these transformations and alterations intend to be included with the claims without deviating the spirit of the present invention.
