초록 ▼

A non-self-supporting ladder having an anti-slide-out device which enables a user to set up the ladder at the specified minimum ladder set-up angle (θ) or greater angles for precluding the base of the ladder from sliding away from a structure against which the ladder is leaning upon application of a

A non-self-supporting ladder having an anti-slide-out device which enables a user to set up the ladder at the specified minimum ladder set-up angle (θ) or greater angles for precluding the base of the ladder from sliding away from a structure against which the ladder is leaning upon application of a weight on the ladder, but prevents the ladder to be set up at angles smaller than (θ). The device includes an inboard roller assembly having a bracket connected to each side rail of the ladder and a roller connected to each bracket oriented and disposed so as to impose a specified ladder inclination angle (θ), when the lower end of the ladder and the rollers simultaneously rest on a substantially flat horizontal surface. At set-up angles smaller than the specified minimum angle (θ), only the rollers rest on the horizontal surface, preventing the ladder from being set up.

대표청구항 ▼

A non-self-supporting ladder having an anti-slide-out device which enables a user to set up the ladder at the specified minimum ladder set-up angle (θ) or greater angles for precluding the base of the ladder from sliding away from a structure against which the ladder is leaning upon application of a

A non-self-supporting ladder having an anti-slide-out device which enables a user to set up the ladder at the specified minimum ladder set-up angle (θ) or greater angles for precluding the base of the ladder from sliding away from a structure against which the ladder is leaning upon application of a weight on the ladder, but prevents the ladder to be set up at angles smaller than (θ). The device includes an inboard roller assembly having a bracket connected to each side rail of the ladder and a roller connected to each bracket oriented and disposed so as to impose a specified ladder inclination angle (θ), when the lower end of the ladder and the rollers simultaneously rest on a substantially flat horizontal surface. At set-up angles smaller than the specified minimum angle (θ), only the rollers rest on the horizontal surface, preventing the ladder from being set up.