zhongxinladder

Mar 9, 2010 at 08:04 o\clock

A fixed position for stabilizing the ladder

by: zhongxinladder   Keywords: ladder, stabilizer

The objects are further accomplished by a step ladder having a front step section and a rear prop section, the rear prop section being movably attached to a top portion of the step ladder adjacent to the front step section, a step ladder stabilizer , attached to the front step section and extending between the front step section and the rear prop section to provide stabilization, comprising a channel having an upper bracket and a lower bracket for mounting to the front step section of the step ladder, the channel having an opening running the length of the channel, a slide lock bracket adapted to slide along the opening of the channel and be locked at a preferred position, a first leg attached to a first side of the slide lock bracket, the first leg extending downward away from the channel,

a second leg attached to a second side of the slide lock bracket, the second leg extending downward away from the channel, a spreader bar attached between the first leg and the second leg, a first arm having a first end attached to the first leg and a second end adapted to attach to the front section of the step ladder, and a second arm having a first end attached to the second leg and a second end adapted to attach to the front step section of the step ladder. The spreader bar comprises means for folding-up the spreader bar. The slide lock bracket comprises means for securing the slide lock bracket along the channel at the preferred position to stabilize the step ladder. The step ladder stabilizer closes-up against the front step portion of the step ladder when the slide lock bracket is raised along the channel.

The objects are further accomplished by an extension ladder stabilizers comprising a channel, capable of being attached to a side of a ladder, which comprises an opening on an outer side running the length of the channel, a slide lock bracket attached to the channel and adapted to slide along the opening of the channel and be locked at a preferred position, a hinged connecting plate attached to a lower portion of the slide lock bracket, having means for attaching a first section of the hinged connecting plate to the slide lock bracket, an extending leg having a first end attached to a second section of the hinged connecting plate enabling the leg to rotate about the attaching means, and a foldable arm having a first end attached to a lower end portion of the channel and a second end attached to a predetermined location on the extending leg. The slide lock bracket comprises a lever for securing the slide lock bracket along the channel at the preferred position for optimum stabilization of the ladder. The extending leg comprises an extension section which extends from the extending leg for stabilizing the ladder. The foldable arm comprises means for locking the arm into a fixed position for stabilizing the ladder. A U-shaped guard is positioned between a side of the ladder and the channel to protect the extending leg when closed and adjacent to the ladder.

 

 

 

 

 

 

 

The objects are further accomplished by an extension ladder comprising a plurality of steps positioned between a first side and a second side of the ladder, each one of the plurality of steps having a first expansion insert placed into a first side of the ladder and into each of the plurality of steps and a second expansion insert placed into a second side of the ladder and into each of the plurality of steps, a first ladder stabilizer manufacturer attached to the first side of the extension ladder, a second ladder stabilizer attached to the second side of the extension ladder, the first ladder stabilizer and the second ladder stabilizer each comprising a channel attached to the side of the ladder having an opening on an outer side running the length of the channel, a slide lock bracket attached to the channel and adapted to slide along the opening of the channel or to be locked at a preferred position, a hinged connecting plate having a first section attached to a lower portion of the slide lock bracket,

an extending leg having a first end attached to a second section of the hinged connecting plate enabling a second end of the extending leg to be moved toward or away from the side of the ladder, and a foldable arm having a first end attached to a lower end of the channel and a second end attached to a predetermined location on the extending leg. The slide lock bracket comprises means for securing the slide lock bracket along the channel at the preferred position for optimum stabilization of the ladder. The extending leg comprises an extension section which extends from the extending leg for stabilizing the ladder. The foldable arm comprises means for locking the arm into a fixed position for stabilizing the ladder. A first U-shaped guard is positioned between a first side of the extension ladder and the channel of the first ladder stabilizer, and a second U-shaped guard is positioned between a second side of the ladder and the channel of the second ladder stabilizer .

The objects are further accomplished by a lever lock assembly comprising a lever having means on an end of a right angled portion of the lever for griping a first surface when the lever is in a closed position, a frame for mounting the lever lock assembly to a second surface, the frame having an opening for the end of the right angled portion of the lever to enter, means for securing the right angled lever within a center portion of the frame to enable the lever to rotate about the securing means with the right angled portion of the lever protruding through the opening in the frame when the lever is in the closed position, and a U-shaped spring, one end attached to the frame below a handle portion of the lever and the other end positioned against an underside of the handle portion of the lever. The griping means comprises a plurality of teeth on the end of a right angled portion of the lever. The U-shaped spring comprises a U-shaped leaf spring.

Additional objects, features and advantages of the invention will become apparent to those skilled in the art upon consideration of the following detailed description of the preferred embodiments exemplifying the best mode of carrying out the invention as presently perceived.

 

 

from:freepatentsonline


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