Floor nozzle for vacuum cleaners
First Claim
Patent Images
1. A floor nozzle for vacuum cleaners, comprising:
- a housing;
a pivot plate;
a vertically adjustable brush strip supported on said pivot plate;
a bottom plate;
an intermediate strip for opening a nap to be cleaned;
front and rear suction channels separated by said intermediate strip and arranged in said bottom plate and extending transversely to a direction along which the floor nozzle is to be pushed to effect any of a forward and backward movement, said front suction channel being defined by a front cleaning edge, said rear suction channel being defined by a rear cleaning edge, each of said front and rear cleaning edges being rounded for sliding across the nap during any of the forward and backward movement of the floor nozzle on the nap; and
support means arranged on the housing for providing swivel support of a suction pipe, wherein the intermediate strip is arranged between said front and rear cleaning edges for opening the nap to be cleaned, said intermediate strip being configured as an elongated lip for penetrating into the nap, bending individual fibers of the nap over according to the direction of movement of the floor nozzle across the nap, and separating the nap in directions toward the front and rear suction channels depending on the direction of movement of the floor nozzle in one of a forward and backward direction as the front and rear cleaning edges slide across the nap.
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Abstract
A floor nozzle for vacuum cleaners comprises a housing and two suction channels, separated by an intermediate strip, arranged in the bottom plate thereof and extending transversely to the direction of movement the intermediate strip being designed as a rigid plow strip arranged between a front and a rear cleaning edge and acting to open the nap to be cleaned, due to its digging-in effect, toward the front or rear suction channel, depending on the direction of movement.
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Citations
23 Claims
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1. A floor nozzle for vacuum cleaners, comprising:
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a housing; a pivot plate; a vertically adjustable brush strip supported on said pivot plate; a bottom plate; an intermediate strip for opening a nap to be cleaned; front and rear suction channels separated by said intermediate strip and arranged in said bottom plate and extending transversely to a direction along which the floor nozzle is to be pushed to effect any of a forward and backward movement, said front suction channel being defined by a front cleaning edge, said rear suction channel being defined by a rear cleaning edge, each of said front and rear cleaning edges being rounded for sliding across the nap during any of the forward and backward movement of the floor nozzle on the nap; and support means arranged on the housing for providing swivel support of a suction pipe, wherein the intermediate strip is arranged between said front and rear cleaning edges for opening the nap to be cleaned, said intermediate strip being configured as an elongated lip for penetrating into the nap, bending individual fibers of the nap over according to the direction of movement of the floor nozzle across the nap, and separating the nap in directions toward the front and rear suction channels depending on the direction of movement of the floor nozzle in one of a forward and backward direction as the front and rear cleaning edges slide across the nap. - View Dependent Claims (2, 3, 4, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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5. A floor nozzle for vacuum cleaners, comprising:
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a housing; a pivot plate; vertically adjustable brush strip supported on said pivot plate; a bottom plate; an intermediate strip for opening a nap to be cleaned; front and rear suction channels separated by said intermediate strip and arranged in said bottom plate and extending transversely to a direction along which the floor nozzle is to be pushed to effect any of a forward and backward movement, said front suction channel being defined by a front cleaning edge, said rear suction channel being defined by a rear cleaning edge, each of said front and rear cleaning edges being rounded for sliding across the nap during any of the forward and backward movement of the floor nozzle on the nap; support means arranged on the housing for providing swivel support of a suction pipe, wherein the intermediate strip is arranged between said front and rear cleaning edges for opening the nap to be cleaned, penetrating into the nap, bending individual fibers of the nap over according to the direction of movement of the floor nozzle across the nap, and separating the nap in directions toward the front and rear suction channels depending on the direction of movement of the floor nozzle in one of a forward and backward direction as the front and rear cleaning edges slide across the nap, said support means including support wheels rotatably connected to said housing so as to be rotatable about an axis; and a handle pipe connected to the floor nozzle via a pivot axis, said pivot axis being set off to the front relative to the axis of rotation of the support wheels in a manner such that pressure applied by an operator, via the handle pipe, results in additional contact pressure between the floor nozzle and the surface to be cleaned than is otherwise present.
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Specification