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US 7,832,803 B2Granted
Headrest linkage
OwnerTerry Cassadayinventor
Life of this patent
Estimating the term…
Abstract
An adjustable linkage to support an object comprising a pair of arms rotatable about a first axis, one of said arms supporting said object and damper means disposed about said first axis between said arms for selective rotational movement and placement of said object relative said other arm.
Claims21
An adjustable headrest for a chair having a generally upright backrest comprising:
- (a) a first arm member having one end rotatably connected to said backrest;
- (b) a second arm member having one end rotatably connected to said headrest;
- (c) said first arm member having another end rotatably connected to another end of said second arm member about an axis of rotation;
- (d) a housing disposed about said axis of rotation;
- (e) a first hinge damper co-axially disposed in said housing about said axis of rotation between said first and second arms;
- (f) said housing including a slot, and said hinge damper including a projection for engaging said slot;
- for selective rotational movement and placement of said headrest to a desired position solely by pushing against the headrest.
4 more elements
An adjustable headrest for a chair having a generally upright backrest comprising:
- (a) a first arm member having a first pair of spaced apart legs at one end rotatably connected to a said backrest of a chair;
- (b) a second arm member having a second pair of spaced apart legs at one end rotatably connected to said headrest;
- (c) said first arm member having a third pair of spaced apart legs at another end rotatably connected to a fourth pair of spaced apart legs disposed at another end of said second arm member about an axis of rotation;
- (d) a housing disposed about said axis of rotation;
- (e) damper means coaxially disposed in said housing about said axis of rotation between said third and fourth pair of spaced apart legs of said first and second arm for movement of said headrest from one position to another by solely applying pressure against at least one of said first or second arm members;
- (f) said housing including a slot, and said damper means including a projection for engaging said slot, for selective rotational movement and placement of said headrest to a desired position.
3 more elements
The combination of an adjustable headrest and a chair having a backrest comprising:
- (a) a first arm member having one end rotatably connected to said backrest;
- (b) a second arm member having one end rotatably connected to said headrest;
- (c) said first arm member having another end rotatably connected to another end of said second arm member about an axis of rotation;
- (d) a housing disposed about said axis of rotation;
- (e) a hinge damper co-axially disposed in said housing about said axis of rotation between said first and second arms for continuous selective rotational movement and placement of said headrest to a desired position solely by pushing against the headrest;
- (f) one of said hinge damper, and housing including a slot, and said other of said hinge damper and housing including a protrusion to engage said slot.
3 more elements
Dependencies are inferred from the claim text.