Automatic level controlling apparatus
AssigneeLG Electronics Inc.
InventorsHo Cheol Kwon, Hack Jai Song, Beom Jun Kim, Il Jyeok Yim, Kang Mo Choi
Life of this patent
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Abstract
An automatic level controlling apparatus (100) for supporting an appliance includes a hollow leg body (110), a piston (140) inserted in the hollow leg body (110), a spring (130) seated on an upper portion of the piston (140), a cap (120) disposed on an upper portion of the piston (140) to support an upper portion of the spring (130), a frictional member (150) disposed around the piston (140), and a piston rod (160) coupled to the piston (140) and supported on a floor.
Claims18
An automatic level controlling apparatus for supporting an appliance, comprising:
- a hollow leg body;
- a piston inserted in the hollow leg body;
- a spring seated on an upper portion of the piston;
- a cap disposed on an upper portion of the leg body;
- a frictional member disposed around the piston;
- and
- a piston rod coupled to the piston and supported on a floor,
- wherein the piston and the leg body has a first operation mode where the piston and the leg body are capable of relatively rotating and a second operation mode where the piston and the leg body cannot relatively rotate.
An automatic level controlling apparatus for supporting an appliance, comprising:
- a hollow leg body;
- at least one hook projection extending upward from a bottom of the leg body;
- a cap disposed on an upper portion of the leg body;
- a piston inserted in the hollow leg body;
- at least one hook step extending downward from a bottom of the piston;
- a spring seated on an upper portion of the piston;
- and
- a piston rod coupled by penetrating a center of the piston and supported on a floor.
An automatic level controlling apparatus for supporting an appliance, comprising:
- a hollow leg body;
- a cap disposed on an upper portion of the leg body;
- a piston inserted in the leg body to be capable of vertically moving;
- a piston rod coupled by penetrating a center of the piston and supported on a floor;
- a spring extending from an upper portion of the piston to a lower portion of the cap to provide force moving the lower portion of the piston to the lower portion of the leg body in a state where there is no outer force;
- and
- a relative rotation locking unit to prevent the piston from relatively rotating on the leg body when the lower portion of the piston contacts the lower portion of the leg body.
An automatic level controlling apparatus for supporting an appliance, comprising:
- a hollow leg body;
- a piston inserted in the leg body to be capable of vertically moving;
- a spring seated on an upper portion of the piston;
- a cap disposed on an upper portion of the leg body;
- a frictional member disposed around the piston and moving with the piston;
- a seating groove provided at an outer circumference of the piston to receive the frictional member;
- a piston rod coupled to the piston and supported on a floor;
- and
- a relative rotation locking unit formed between the piston and the leg body to prevent the piston from relatively rotating on the leg body.
Dependencies are inferred from the claim text.