초록 ▼

A support device includes an arm having a lower shaft pivotally secured to a base, and an upper axle pivotally secured to a bracket and a curved channel formed around the axle. A lever has a lower rod pivotally secured to the base and a curved groove formed around the rod for slidably receiving the

A support device includes an arm having a lower shaft pivotally secured to a base, and an upper axle pivotally secured to a bracket and a curved channel formed around the axle. A lever has a lower rod pivotally secured to the base and a curved groove formed around the rod for slidably receiving the shaft, and has an upper fastener pivotally secured to the bracket and slidably received in the curved channel of the arm. A stem is rotatably attached between the rod and the fastener. A locking device may lock the stem and the lever and the arm and the bracket together, to secure and support the bracket or various objects at selected position.

대표청구항 ▼

1. A support device comprising:a base,a bracket for supporting an object,an arm including a lower portion pivotally secured to said base with a shaft, and including an upper portion pivotally secured to said bracket with an axle, and including a curved channel formed therein and formed around said a

1. A support device comprising:a base,a bracket for supporting an object,an arm including a lower portion pivotally secured to said base with a shaft, and including an upper portion pivotally secured to said bracket with an axle, and including a curved channel formed therein and formed around said axle,a lever including a lower portion pivotally secured to said base with a rod, and including a curved groove formed in said lower portion thereof and formed around said rod for slidably receiving said shaft and for allowing said lever to be rotated relative to said base, said lever including an upper portion pivotally secured to said bracket with a fastener, said fastener being slidably received in said curved channel of said arm for allowing said upper portion of said lever and said fastener to be rotated relative to said arm about said axle,a stem including a lower portion having an aperture formed therein to rotatably receive said rod, and an upper portion having an orifice formed therein to rotatably receive said fastener, andmeans for locking said upper portion of said stem and said lever and said arm and said bracket together, to secure and support said bracket at selected position. 2. The support device as claimed in claim 1, wherein said locking means includes a lock member having an inner thread formed therein, and includes an outer thread provided on said fastener and threaded with said inner thread of said lock member, to lock said upper portion of said stem and said lever and said arm and said bracket together. 3. The support device as claimed in claim 2, wherein said lock member includes a handle provided thereon for rotating said lock member relative to said fastener and said arm. 4. The support device as claimed in claim 1, wherein said fastener includes a peripheral shoulder formed therein to engage with said stem, and to position said fastener relative to said stem. 5. The support device as claimed in claim 1, wherein said base includes a stop secured thereto, said lever includes a cam surface provided in said lower portion thereof to engage with said stop, and to limit a rotational movement of said lever relative to said base. 6. The support device as claimed in claim 1, wherein said base includes a stop secured thereto, said arm includes a curved passage formed in said lower portion thereof to slidably receive said stop. 7. The support device as claimed in claim 6, wherein said arm includes a downwardly curved flap provided on said lower portion thereof to form and define said curved passage of said arm. 8. The support device as claimed in claim 1 further comprising a coupler pivotally secured to said bracket with a first pin, and a frame pivotally secured to said coupler with a second pin, said first pin being offset and perpendicular to said second pin, to allow said frame to be rotated and adjusted relative to said bracket.