Cleaning apparatus for carpets, upholstery and the like

• US 4,096,601 A
• Filed: 01/23/1976
• Issued: 06/27/1978
• Est. Priority Date: 01/25/1975
• Status: Expired due to Term

• Current Assignee: Leopold Knestele
• Original Assignee: Leopold Knestele
• Inventors: Knestele, Leopold
• Primary Examiner(s): Moore, Christopher K.
• Application Number:
  US05/651,688
• Time in Patent Office: 886 Days
• Field of Search: 15/50 C, 15/320, 15/321, 15/328, 15/337
• US Class Current: 15/320
• CPC Class Codes: A47L 11/36 Machines for beating upholstery

Abstract

A cleaning apparatus for carpets, upholstery and the like in which a housing is displaceable along the surface to be cleaned and is provided with a motor-driven suction device, a foam-applying device and a pulsating scrubbing (massaging) device, the latter two devices being selectively operational apart from or together with a rotatable brush by control elements. The foam-applying (shampooing) device and the scrubbing device can be selectively coupled to the same motor as is used to drive the brush and the suction device.

Claims

1. An apparatus for the cleaning of carpets, upholstery and the like comprising:

a housing formed with wall means defining a downwardly open suction compartment containing a rotatable brush at a leading end of said housing, means for sucking air out of said compartment, a flexible-surface vibrating body rearward of said compartment for engagement with the surface to be cleaned, said vibrating body being drivable to vibrate foam into said surface to be cleaned, a foam applicator in said housing rearward of said vibrating body, and means for feeding a foamable cleaning liquid to said applicator, said applicator comprising a belt provided with bristles and a pair of rollers spanned by the belt and rotatable to displace said bristles to apply said foamable cleaning liquid to said surface to be cleaned; and

manually controlled drive means for selectively operating either said brush alone or both said body and said applicator in conjunction.

2. The apparatus defined in claim 1 wherein said means for sucking air includes a suction blower in said compartment having a motor provided with a shaft, said body being eccentrically mounted on a vibrator shaft, said drive means comprising first and second friction wheels, respective bellcrank levers pivotally mounted on said housing and carrying said wheels for selectively shifting same into frictional contact with said shaft of said motor, said drive means including a respective elastic-belt step-down transmission connecting one of said friction wheels with a shaft of said brush and the other of said friction wheels with said vibrator shaft and said rollers.

3. The apparatus defined in claim 2, wherein said feeding means including a container for said foamable cleaning liquid, a fluid line connecting said container to said applicator, and a valve interposed between said applicator and said container, means connecting the lever carrying said other friction wheel with said valve to permit flow of said foamable cleaning liquid to said applicator upon engagement of said other friction wheel with said shaft of said motor.

4. The apparatus defined in claim 2, further comprising respective rotatable cams engageable with free ends of the respective levers for retaining the respective wheels out of engagement with said shaft of said motor;

and

respective springs connected to said levers for urging said wheels toward engagement with said shaft of said motor, and actuating levers operable externally of said housing for controlling the position of said cams.

5. The apparatus defined in claim 4 wherein the actuating lever for controlling the position of the cam for the friction wheel of said brush is disposed along a side of said housing and the actuating lever for controlling the other cam is connected thereto by a Bowden cable, said apparatus having a handle and the last mentioned actuating lever being mounted on said handle.

6. The apparatus defined in claim 2 wherein said vibrating body is a roller of soft elastic foam rotatable about an axis, said vibrator shaft carrying said roller and being rotatable about another axis parallel to but spaced from the first-mentioned axis, said vibrator shaft being driven by said other of said friction wheels, said apparatus further comprising another reduction transmission between said vibrator shaft and said applicator.

7. The apparatus defined in claim 2 wherein said housing is formed with a coverable opening, said apparatus further comprising a hose-carrying suction tube adapted to pass through said opening and communicate with said blower, said suction tube locking onto said housing at said opening.

8. The apparatus defined in claim 2 further comprising a slide for closing said opening in an inoperative condition of said body thereof.