EP0480464A1 - Dispositif pour poncer le plancher - Google Patents

Dispositif pour poncer le plancher Download PDF

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Publication number
EP0480464A1
EP0480464A1 EP91117388A EP91117388A EP0480464A1 EP 0480464 A1 EP0480464 A1 EP 0480464A1 EP 91117388 A EP91117388 A EP 91117388A EP 91117388 A EP91117388 A EP 91117388A EP 0480464 A1 EP0480464 A1 EP 0480464A1
Authority
EP
European Patent Office
Prior art keywords
pulling
floors
knife
working
cutting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP91117388A
Other languages
German (de)
English (en)
Other versions
EP0480464B1 (fr
Inventor
Peter Leinsle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0480464A1 publication Critical patent/EP0480464A1/fr
Application granted granted Critical
Publication of EP0480464B1 publication Critical patent/EP0480464B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/02—Scraping
    • A47L13/08—Scraping with scraping blades
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/006—Arrangements for removing of previously fixed floor coverings

Definitions

  • the invention relates to a device for pulling floors according to the type mentioned in the preamble of claim 1.
  • Devices of this type facilitate the removal of floor coverings and the remnants that often remain after the floor coverings have been removed.
  • the present invention has for its object to provide a device of the above type that works more effectively than known devices of this type.
  • the range specified for the angle between the tangent and the cutting edge achieves an optimal machining effect.
  • the width of the working tracks increases with increasing angle.
  • the working movement changes from a cutting to a pulling movement.
  • An angle between 2 and 15 o has been found to be particularly useful.
  • Such cutting edges also have the advantage that they regrind themselves.
  • Claim 3 relates to a development of the present invention, in which the knives hit the work surface at an angle. This increases the cutting action and, with a corresponding length of the knives, bending of the knives currently in contact with the work surface can be achieved, as a result of which the contact pressure of the cutting edges on the work surface and the overall working width is increased.
  • Claim 4 relates to a preferred embodiment in which the knives are made of elastic sheet steel, which ensures good bending properties of the knives.
  • the knives also strike the work surface at an angle of 10 ° to 30 ° , which results in a particularly effective cutting movement.
  • a further preferred embodiment results from claim 5. Tilting the knife about its radial axis enables the cutting edge to lie in its entire length in the working surface despite its angle to the tangent of the circular movement, whereby an optimal pulling cutting movement is achieved.
  • Claim 6 specifies a development of the invention in which the knives have a kink running parallel to the working edge within their free end, which in turn results in the entire working edge resting on the working surface. This in turn results in an optimal pulling cutting movement.
  • An orientation of the axis of rotation at an angle between 0 o and 5 o in the working direction to the work surface has proven to be expedient. With decreasing angle to the vertical, the arc-shaped working surface within which the working knives meet the working surface increases, and thus the working width of the device.
  • Claim 8 relates to a development of the invention, in which the tips of the blade coming into contact with the work surface have a wedge-shaped profile which is designed such that one side of the wedge comes to rest in the work surface and the other side of the wedge in one level with the surface of the remaining knife blade adjoining this side of the wedge.
  • Such profiles grind themselves automatically.
  • Claim 10 specifies a development in which a device for receiving a weight is provided on the device.
  • a hollow body made of plastic with a screw cap could serve for this purpose, which can be filled up with water or other substances at the work site. On the one hand, this increases the loading pressure, on the other hand, the weight can be removed again during the transport of the device.
  • Claim 11 specifies a development of the device according to the invention in which the chassis has one stop each on the left and right corners lying in the direction of movement.
  • the stops are arranged so that their outermost connecting line is just reached by the rotating knives.
  • claim 12 relates to a development of the present invention, in which the chassis is driven by the motor.
  • all knives are in the work area at the same time on what is achieved by a vertical axis of rotation.
  • the knives are preferably rigid and the entire device should be stable and heavy. A high dead weight prevents the device from twisting due to the forces acting on the knives.
  • the device is operated via a handle 14 attached to the arm 13 and an operating switch 15 also attached to the arm 13. During operation, the knives run at a constant speed around the axis (approx. 500-1000 rpm).
  • Fig. 2 shows a bottom view of the embodiment.
  • the knives 6 are fastened on the underside of the carrier disk 5.
  • stops 16 are provided, the outermost connecting line of which is just reached by the rotating knives.
  • Fig. 3 shows in detail the front part of a knife blade with cutting edge 7. It can be seen that the cutting edge 7 forms an angle with the tangent to the movement circle, as a result of which the end of the cutting edge leading in the direction of movement rotates on a smaller radius than that Moving end of the cutting edge. Such a course of the cutting edge causes a cutting and at the same time pulling working movement of the knife on the work surface, which is an important feature according to the invention. In addition to the better work results that can be achieved as a result, the service life of the knives is also increased, since such cutting edges continuously grind themselves on the surface of the floor.
  • FIG. 4 shows a section running perpendicular to the radial direction of a knife with the carrier disk lying above it.
  • An oblique position of the knives about a radial axis from the plane of the carrier disk can be achieved by means of a pair of carrier plates 17 designed in a wedge shape. This ensures that the entire length of the cutting edge rests on the work surface, although the cutting edge is at an angle to the central axis of the knife or to the tangent to the circular movement.
  • the carrier disk is designed to taper from the outside to the inside over the area of an outer disk.
  • a knife can be attached to the mounting surface which is thereby inclined relative to the plane of the carrier disc.
  • an even larger angle of incidence can thereby be achieved.
  • Fig. 6 shows another way of attaching the knife to the carrier disc.
  • the required inclination of the knife blades 6 is achieved by a kink within the free, unscrewed end of the knife.
  • the kink should be approximately 15 o and the kink line expediently runs parallel to the working edge 7, as seen in plan view, which produces the same effect that was explained in the description of FIG. 4.
  • FIG. 7 shows a further embodiment of the device according to the invention.
  • the machine can be moved laterally. This displacement can be countered by a second counter-rotating cutting device.
  • Two cutting devices are provided next to each other in the direction of travel and rotating around parallel axes. The directions of rotation are selected so that the removed residues can be transported to the outside.
  • the knives of both cutters interlock so that the working path of the two cutters come to lie side by side.
  • the number and size of the fair have been chosen so that a smooth interlocking is guaranteed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Knives (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Coating Apparatus (AREA)
EP91117388A 1990-10-12 1991-10-11 Dispositif pour poncer le plancher Expired - Lifetime EP0480464B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4032501A DE4032501A1 (de) 1990-10-12 1990-10-12 Vorrichtung zum abziehen von fussboeden
DE4032501 1990-10-12

Publications (2)

Publication Number Publication Date
EP0480464A1 true EP0480464A1 (fr) 1992-04-15
EP0480464B1 EP0480464B1 (fr) 1995-01-25

Family

ID=6416199

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91117388A Expired - Lifetime EP0480464B1 (fr) 1990-10-12 1991-10-11 Dispositif pour poncer le plancher

Country Status (3)

Country Link
EP (1) EP0480464B1 (fr)
AT (1) ATE117521T1 (fr)
DE (2) DE4032501A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29905936U1 (de) 1999-04-01 1999-07-01 Geibel, jun., Gregor, 77933 Lahr Vorrichtung zum Schneiden, insbesondere zum Schneiden von Dönerkebab

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4377412A (en) * 1980-09-16 1983-03-22 Viehe John S Improved rotary scraper having flexible fingers
DE3523903A1 (de) * 1985-07-04 1987-01-08 Karl Hettich Fussbodenschleifmaschine
CH670415A5 (en) * 1988-09-20 1989-06-15 Hans Meier Abrasive disc for wood finishing - has radial helical abrasive ribs with resilient tubes attached, enclosed by stationary dust extraction ring

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3527595A1 (de) * 1985-08-01 1987-02-12 Gobbers Maschinenbau Geb Vorrichtung zum abloesen von alten bodenbelaegen
DE3715620A1 (de) * 1986-07-02 1988-01-14 Witte Michael Dipl Oec Vorrichtung zum entfernen von bodenbelaegen
DE3719721C3 (de) * 1987-06-12 1996-10-17 Gaemmerler Hagen Schneidmesser für Rotationsschneidanlagen für Papier

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4377412A (en) * 1980-09-16 1983-03-22 Viehe John S Improved rotary scraper having flexible fingers
DE3523903A1 (de) * 1985-07-04 1987-01-08 Karl Hettich Fussbodenschleifmaschine
CH670415A5 (en) * 1988-09-20 1989-06-15 Hans Meier Abrasive disc for wood finishing - has radial helical abrasive ribs with resilient tubes attached, enclosed by stationary dust extraction ring

Also Published As

Publication number Publication date
ATE117521T1 (de) 1995-02-15
EP0480464B1 (fr) 1995-01-25
DE4032501A1 (de) 1992-04-16
DE59104390D1 (de) 1995-03-09

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