Vacuum cleaner height adjustment
First Claim
Patent Images
1. A height adjustment arrangement for a suction nozzle of a vacuum cleaner, said height adjustment arrangement comprising:
- a) a wheel carriage pivotally mounted to said suction nozzle for supporting said suction nozzle on a floor surface;
b) a height adjusting cam linearly movable along said suction nozzle, said height adjusting cam having a cam surface positioned to engage said wheel carriage and cammingly pivot said wheel carriage relative said nozzle when said height adjusting cam is linearly displaced, to thereby adjust the height of said nozzle above a floor surface;
c) an actuator for selectively linearly displacing said height adjusting cam;
d) said actuator comprises a deflectable manual actuation tab extending from said height adjusting cam for operation of said actuator via an operator'"'"'s finger; and
e) wherein said actuation tab is a cantilever.
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Accused Products
Abstract
A suction nozzle is provided with a linearly movable, stepped cam which adjusts the height of the suction nozzle by acting against a pivoted wheel carriage. The stepped cam is relatively fixedly positioned by an indexing means including a deflectable arm which is manually deformed to release the fixed indexing and then manipulated in a sideward direction to move the position of the stepped linear cam means.
44 Citations
19 Claims
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1. A height adjustment arrangement for a suction nozzle of a vacuum cleaner, said height adjustment arrangement comprising:
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a) a wheel carriage pivotally mounted to said suction nozzle for supporting said suction nozzle on a floor surface; b) a height adjusting cam linearly movable along said suction nozzle, said height adjusting cam having a cam surface positioned to engage said wheel carriage and cammingly pivot said wheel carriage relative said nozzle when said height adjusting cam is linearly displaced, to thereby adjust the height of said nozzle above a floor surface; c) an actuator for selectively linearly displacing said height adjusting cam; d) said actuator comprises a deflectable manual actuation tab extending from said height adjusting cam for operation of said actuator via an operator'"'"'s finger; and e) wherein said actuation tab is a cantilever. - View Dependent Claims (2, 3, 4, 5, 16, 17, 18, 19)
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6. A height adjustment arrangement for a suction nozzle of a vacuum cleaner, said height adjustment arrangement comprising:
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a) a wheel carriage pivotally mounted to said suction nozzle for supporting said suction nozzle on a floor surface; b) a height adjusting cam linearly movable along said suction nozzle, said height adjusting cam having a cam surface positioned to engage said wheel carriage and cammingly pivot said wheel carriage relative said nozzle when said height adjusting cam is linearly displaced, to thereby adjust the height of said nozzle above a floor surface; c) an actuator for selectively linearly displacing said height adjusting cam; d) said actuator comprises a deflectable manual actuation tab extending from said height adjusting cam for operation of said actuator via an operator'"'"'s finger; e) a series of indexing indents formed in said suction nozzle; and f) wherein said actuation tab is located such that a portion of said actuation tab is serially received in each of said indexing recesses to selectively indexably located said height adjusting cam relative said frame. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification