Holes Box

Holes Box

Reference #18.75fd733e.1665741101.519d0aa

A bell hole box with an open bottom for protecting construction workers from wall cave-in when working below a surface of the Earth may utilize two, opposing, generally concave walls with generally straight panels portions. The two walls may be connected using multiple spreaders that are pinned or connected to each of the two, opposing walls. Each longitudinal end of the bell hole box is open to permit passage of a pipeline through it. Numerous vertical guard posts may be connected around a top frame rail and joined together with chains. The bell hole box may be lifted in and out of a hole with mounted lifting hooks.
This invention relates to a bell hole box that may be installed at some distance below a surface of the Earth to provide a safe and comfortable space within which people may work.
Devices known generally as trench boxes or trench shoring assemblies have been known in the field of pipeline repair and construction for years. Generally, such devices are placed into the ground to protect workers from unstable Earthen walls that may be susceptible to collapse and thus injure a human worker who may suffer an injury were it not for the vertical walls of the trench box, within which a worker is required to work. However, such devices are not without their share of limitations. Known trench boxes are generally relatively narrow and permit only certain, limited tasks to be performed within the box confines, while also limiting the number of workers who can work within the confines of the box. Furthermore, due to current designs of trench boxes, a large pipe that passes through the trench box may contact and injure workers since traditional straight walls of a trench box provide no space for a worker to reside in the event of a pipe that shifts or moves toward either wall.
What is needed then is a device and method that does not suffer from the above limitations.
In one embodiment of the present teachings, an apparatus for protecting construction workers working below a top surface of the Earth may include a first box wall, a second box wall, a first spreader positioned at 90 degrees to at least one structural side panel of first box wall and second box wall, and a second spreader positioned at 90 degrees to at least one structural side panel of first box wall and second box wall. The apparatus may further include a first spreader receiver assembly that defines a hollow cavity and is mounted to the first box wall, a second spreader receiver assembly that defines a hollow cavity and is mounted to the second box wall. At least a portion of the first spreader assembly occupies the hollow cavity of the first spreader receiver assembly and the hollow cavity of the second spreader receiver assembly. The apparatus may further include a third spreader receiver assembly that defines a hollow cavity and is mounted to the first box wall, and a fourth spreader receiver assembly that defines a hollow cavity and is mounted to the second box wall. At least a portion of the second spreader assembly may occupies the hollow cavity of the third spreader receiver assembly and the hollow cavity of the fourth spreader receiver assembly. A first spreader assembly top plate may be attached to the first spreader assembly. The first spreader assembly top plate is connected to the first box wall and the second box wall. A second spreader assembly top plate may be attached to the second spreader assembly. The second spreader assembly top plate is connected to the first box wall and the second box wall. A ladder may be attached to an interior surface of the first box wall to permit a person to easily enter and exit the apparatus.
A feature of the first embodiment may be that the first box wall has a first longitudinal end and a second longitudinal end, and the second box wall has a first longitudinal end and a second longitudinal end, such that a first distance between the first longitudinal end of the first box wall and the first longitudinal end of the second box, and a second distance between the second longitudinal end of the first box wall and the second longitudinal end of the second box wall, are both less than a midpoint distance between a midpoint of the first box wall and a midpoint of the second box wall.
In a second embodiment of the present teachings, an apparatus for protecting construction workers working below a top surface of the Earth may include a first box wall constructed generally of five straight panels, a second box wall constructed generally of five straight panels, a first spreader connected to one of the five straight panels of the first box wall and one of the five straight panels of the second box wall, a second spreader connected to one of the five straight panels of the first box wall and one of the five straight panels of the second box wall, a plurality of guard posts connected to a top frame rail of the first box wall, and a plurality of guard posts connected to a top frame rail of the second box wall. A ladder may be attached to an interior surface of the first box wall, and a top of the ladder may pivot to permit a bottom of the ladder to move away from the first box wall. An extension device may be installed on the ladder to permit the bottom of the ladder to be movable to a swung-out position away from the first box wall. A locking mechanism built into the extension device locks the bottom of the ladder in an extended position away from the first arcuate side wall. The five straight panels of the first box wall are further comprised of two coplanar panels at opposite ends of the first box wall, and the five straight panels of the second box wall are further comprised of two coplanar panels at opposite ends of the second box wall.
With respect to the second embodiment, a first spreader receiver assembly may define a hollow cavity, and a second spreader receiver assembly may define a hollow cavity, at least a portion of the first spreader occupies the hollow cavity of the first spreader receiver assembly and the hollow cavity of the second spreader receiver assembly. A third spreader receiver assembly may define a hollow cavity, and a fourth spreader receiver assembly may define a hollow cavity, and at least a portion of the second spreader occupies the hollow cavity of the third spreader receiver assembly and the hollow cavity of the fourth spreader receiver assembly.
In the second embodiment, the first spreader receiver assembly and the third spreader receiver assembly are mounted to the first box wall, and the second spreader receiver assembly and the fourth spreader receiver assembly are mounted to the second box wall. A first spreader receiver assembly pin may completely pass through the first spreader receiver assembly and the first spreader, a second spreader receiver assembly pin may completely pass through the second spreader receiver assembly and the first spreader, a third spreader receiver assembly pin may completely pass through the third spreader receiver assembly and the second spreader, and a fourth spreader receiver assembly pin may completely pass through the fourth spreader receiver assembly and the second spreader. Three of the five straight panels of the first box wall, and three of the five straight panels of the second box wall, and the first spreader, and the second spreader, form an eight-sided structure, for example in a top view.
In a third embodiment of the present teachings, an apparatus for protecting construction workers working below a top surface of the Earth may include a first arcuate side wall, a second arcuate side wall, a first spreader connected to the first arcuate side wall and the second arcuate side wall, a second spreader connected to the first arcuate side wall and the second arcuate side wall, a plurality of guard posts connected to a top frame rail of the first arcuate side wall, and a plurality of guard posts connected to a top frame rail of the second arcuate side wall. A plurality of chains may be connected to the guard posts and spanning between the guard posts. The first arcuate side wall and the second arcuate side wall may be mirror images of each other, and the first arcuate side wall and the second arcuate side wall lie partially between the first spreader and the second spreader. The apparatus may further include a first spreader receiver assembly defining a hollow cavity, and a second spreader receiver assembly defining a hollow cavity, and at least a portion of the first spreader occupies the hollow cavity of the first spreader receiver assembly and the hollow cavity of the second spreader receiver assembly. A third spreader receiver assembly may define a hollow cavity, and a fourth spreader receiver assembly may define a hollow cavity, and at least a portion of the second spreader occupies the hollow cavity of the third spreader receiver assembly and the hollow cavity of the fourth spreader receiver assembly. The first spreader receiver assembly and the third spreader receiver assembly are mounted to the first side wall, and the second spreader receiver assembly and the fourth spreader receiver assembly are mounted to the second side wall.
The third embodiment may further include a first spreader receiver assembly pin that completely passes through the first spreader receiver assembly and the first spreader, a second spreader receiver assembly pin that completely passes through the second spreader receiver assembly and the first spreader, a third spreader receiver assembly pin that completely passes through the third spreader receiver assembly and the second spreader, and a fourth spreader receiver assembly pin that completely passes through the fourth spreader receiver assembly and the second spreader. In a top view, the first spreader, the second spreader, the first arcuate side wall and the second arcuate side wall form a four-sided structure with two curved sides and two straight sides. The apparatus may further include a pointed tip along a bottom surface of the first arcuate side wall and the second arcuate side wall for engaging an Earthen surface. A ladder may be attached to an interior surface of the first arcuate side wall. The top of the ladder may pivot to permit a bottom of the ladder to move away from the first arcuate side wall, and an extension device may be connected to the ladder to permit the bottom of the ladder to be movable to a swung-out position away from the first arcuate side wall. A locking mechanism may be built into the extension device to lock the ladder in an extended position away from the first arcuate side wall.
In a fourth embodiment of an apparatus for protecting people working below a surface of the Earth may include a bottom bell hole box residing within a hole, and a top bell hole box residing on top of the bottom bell hole box. The apparatus may further include a protruding wedge portion having a slanted surface relative to a vertical surface, the protruding wedge portion protruding from a bottom surface of the top bell hole box, and a tapered surface residing around the top of the bottom bell hole box, such that the slanted surface resides against the tapered surface. The bottom bell hole box may further include a vertical side support frame, such that the protruding wedge portion of the top bell hole box resides next to the vertical side support frame. The protruding wedge portion of the top bell hole box resides against the vertical side support frame. A plurality of posts may protrude from a top of the top bell hole box, and a plurality of safety chains connected between the plurality of posts. A first ladder attached to an interior surface of the bottom bell hole box. T top of the first ladder pivots to permit a bottom of the first ladder to move away from the interior surface of the bottom bell hole box. An extension device may be mounted to the bottom of the first ladder to lock the first ladder in an extended positon away from the interior wall, yet the extension device may remain fastened to the interior wall. A second ladder may be attached to an interior surface of the top bell hole box, directly above the first ladder to facilitate climbing up or down both ladders. A plurality of guard posts may protruding from a top surface of the top bell hole box. Safety chains may be draped or connect to and between the plurality of guard posts. The walls of the bottom bell hole box and the top bell hole box may be arcuate, or the walls of the bottom bell hole box and the top bell hole box may be made of linear sections to form a working space within the bottom bell hole box and the top bell hole box.
A more complete understanding of the present invention and benefits thereof may be acquired by referring to the follow description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a perspective view of a bell hole box in accordance with the present teachings;
FIG. 2 is a perspective view of a wall of a bell hole box in accordance with the present teachings;
FIG. 3 is an enlarged bottom view of a portion of a top wall area of a bell hole box in accordance with the present teachings;
FIG. 4 is a perspective view of a wall of a bell hole box in accordance with the present teachings;
FIG. 5 is an enlarged view of a top wall area of a bell hole box in accordance with the present teachings;
FIG. 6 is a perspective view of a wall of a bell hole box depicting a location of a connective joint receptacle with an adjacent wall in accordance with the present teachings;
FIG. 7 is an enlarged view of a connective joint receptacle in accordance with the present teachings;
FIG. 8 is an enlarged view of a connective joint receptacle in accordance with the present teachings;
FIG. 9 is a view of a connective wall of a bell hole box in accordance with the present teachings;
FIG. 10 is a perspective view of a receiver spreader pin in accordance with the present teachings;
FIG. 11 is a perspective view of a hitch pin with tether and ring in accordance with the present teachings;
FIG. 12 is a hoist ring in accordance with the present teachings;
FIG. 13 is a guard post in accordance with the present teachings;
FIG. 14 is a view of side panels used to manufacture a spreader receiver assembly;
FIG. 15 is a view of a front panel used to manufacture a spreader receiver assembly;
FIG. 16 is a perspective view of another embodiment of a bell hole box having arcuate sides;
FIG. 17 is an enlarged view of a bottom portion of an arcuate side wall of bell hole box;
FIG. 18 is an enlarged view of a top portion of an arcuate side wall of bell hole box;
FIG. 19 is a perspective view of a bell hole box with arcuate side walls;
FIG. 20 is an enlarged view of a ladder area of bell hole box with arcuate side walls;
FIG. 21 is a top view of a bell hole box with arcuate side walls;
FIG. 22 is a perspective view of a first bell hole box stacked on top of a second bell hole box;
FIG. 23 is an enlarged view of a junction location where a first bell hole box stacks on top of a second bell hole box;
FIG. 24 is an enlarged view of a junction of a first bell hole box stacked on top of a second bell hole box;
FIG. 25 is an enlarged view of a junction of a first bell hole box stacked on top of a second bell hole box;
FIG. 26 is an enlarged view of an ingress and egress location of bell hole box;
FIG. 27 is a perspective view of a first bell hole box stacked on top of a second bell hole box depicting an example location of ladders for ingress and egress;
FIG. 28 is an enlarged view of an upper location of an upper bell hole box when the upper and first bell hole box is stacked on top of a lower and second bell hole box;
FIG. 29 is an enlarged view of an upper location of an upper bell hole box when the upper and first bell hole box is stacked on top of a lower and second bell hole box;
FIG. 30 is an enlarged view of a junction of a first bell hole box when stacked upon a second bell hole box, and depicting a location of multiple ladders, with holes for railing posts or guard posts;
FIG. 31 is a an enlarged view of a junction of a first bell hole box when stacked upon a second bell hole box, and depicting a location of multiple ladders, with safety chains installed between railing posts or guard posts;
FIG. 32 is a top view of a first bell hole box stacked on top of a second bell hole box depicting example locations for multiple ladders in a stacked configuration;
FIG. 33 is a perspective view of a ladder in its near-installed position next to an interior surface of a wall of a bell hole box;
FIG. 34 is a perspective view of a ladder in its near-installed position next to an interior surface of a wall of a bell hole box, the ladder exhibiting example linkages used mount the ladder to the interior support structure of the bell hole box;
FIG. 35 is a perspective view of a ladder that is mountable to the interior support structure of the bell hole box;
FIG. 36 is a perspective view of a ladder that is mountable to the interior support structure of the bell hole box;
FIG. 37 is a perspective view of a ladder that is mountable to the interior support structure of the bell hole box; and
FIG. 38 is a perspective view of a ladder that is mountable to the interior support structure of the bell hole box.
Turning now to the detailed description of the preferred arrangement or arrangements of the present invention, presented connection with FIGS. 1-38 , it should be understood that the inventive features and concepts may be manifested in other arrangements and that the scope of the invention is not limited to the embodiments described or illustrated. The scope of the invention is intended only to be limited by the scope of the claims that follow.
FIG. 1 depicts a bell hole box 10 permitting passage of a pipeline 11 (see FIG. 32 ) therethrough having major components of a first box wall 12 , a second box wall 14 , a first spreader 16 , and a second spreader 18 . The material of bell hole box 10 may be steel, aluminum, metal alloy, or suitable composite. Each box wall 12 , 14 may be equipped with a spreader receiver assembly 20 , 22 to receive or facilitate connection of first box wall 12 and second box wall 14 with first spreader 16 . Although not depicted in FIG. 1 , connection of first box wall 12 and second box wall 14 may also be facilitated using a spreader receiver assembly for each of first spreader 16 and second spreader 18 on first box wall 12 , with each of first spreader 16 and second spreader 18 being received into a spreader receiver assembly on first box wall 12 .
FIG. 1 also depicts numerous representative sections of a safety chain 28 that may be strung between and also connected to guard posts. As an example, one end of safety chain 28 may be connected to guard post 24 and an opposite end of safety chain 28 may be connected to guard post 24 . Guard posts 28 may be inserted into holes 30 ( FIG. 2 ) around a first box wall top surface 32 and a second box wall top surface 34 . By inserting guard posts into holes 30 , guard posts are held securely in place when bell hole box 10 is placed into service below a surface of Earth. For example, bell hole box 10 may be placed into the ground or Earth for use in its service position such that first box wall top surface 32 and second box wall top surface 34 are at the same level, or nearly at the same level, as a surface of Earth adjacent bell hole box 10 . In such a position, people walking around a perimeter of bell hole box 10 will be protected from falling into an interior volume or space of bell hole box 10 . Guard posts such as guard posts 24 , 24 may be inserted along an entire top surface 32 of first
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