초록 ▼

An adjustable leg for use with benches, stilts, and the like, the leg including a first strut having a first strut end wall defining an outer surface, the first strut end wall having a first aperture therein, a second elongate strut, the second elongate strut having a second strut end wall and being

An adjustable leg for use with benches, stilts, and the like, the leg including a first strut having a first strut end wall defining an outer surface, the first strut end wall having a first aperture therein, a second elongate strut, the second elongate strut having a second strut end wall and being telescopically received in the first strut, the first strut end wall being adjacent the second strut end wall, the second strut end wall having a plurality of second apertures, a lever journalled for rotational movement about an axis outward of the outer surface on the first strut end wall, the lever having a first portion on one side of the axis of rotation and a second portion on the other side of the axis of rotation, a resilient biaser to urge the first portion of the lever away from the first strut end wall and a latching dog carried by the second portion of the lever end wall and being in register with the first aperture, the resilient biaser urging the latching dog into the first aperture whereby when the first aperture is in register with one of the second apertures, the dog extends through the first and second apertures to thereby prevent any substantial telescopic movement between the first and second struts.

대표청구항 ▼

[ What is claimed is:] [1.] An adjustable leg, comprising:a first elongate strut, said first elongate strut having a first strut end wall defining an outer surface, said first strut end wall having a first aperture therein;a second elongate strut, said second elongate strut having a second strut end

[ What is claimed is:] [1.] An adjustable leg, comprising:a first elongate strut, said first elongate strut having a first strut end wall defining an outer surface, said first strut end wall having a first aperture therein;a second elongate strut, said second elongate strut having a second strut end wall and being telescopically received in said first strut, said first strut end wall being adjacent said second strut end wall, said second strut end wall having a plurality of second apertures therein;a lever journalled for rotational movement about an axis outward of said outer surface on said first strut end wall, said lever having a first portion on one side of said axis of rotation and a second portion on the other side of said axis of rotation, said lever including at least one bearing member defining a circular bearing surface;a shaft journalled in said bearing surface, said shaft being mounted on said first strut outwardly of said outer surface;a coil spring, said spring having at least one spring extension engaging said first strut end wall and a second spring extension engaging said first portion of said lever, said first and second spring extensions acting to urge said first strut end wall and said first portion of said lever away from one another;a latching dog carried by said second portion of said lever and being in register with said first aperture, said spring urging said latching dog into said first aperture whereby when said first aperture is in register with one of said second apertures, said dog extends through said first and second apertures to thereby prevent any substantial telescopic movement between said first and second struts.