EP1541782B1 - Floor stripping blade - Google Patents

Floor stripping blade Download PDF

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Publication number
EP1541782B1
EP1541782B1 EP03257818A EP03257818A EP1541782B1 EP 1541782 B1 EP1541782 B1 EP 1541782B1 EP 03257818 A EP03257818 A EP 03257818A EP 03257818 A EP03257818 A EP 03257818A EP 1541782 B1 EP1541782 B1 EP 1541782B1
Authority
EP
European Patent Office
Prior art keywords
blade
floor
floor stripping
angle
degrees
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.)
Expired - Lifetime
Application number
EP03257818A
Other languages
German (de)
French (fr)
Other versions
EP1541782A1 (en
Inventor
Martin L. Anderson
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
Priority to DE60304130T priority Critical patent/DE60304130T2/en
Priority to DK03257818T priority patent/DK1541782T3/en
Priority to ES03257818T priority patent/ES2264516T3/en
Priority to AT03257818T priority patent/ATE321178T1/en
Priority to EP03257818A priority patent/EP1541782B1/en
Publication of EP1541782A1 publication Critical patent/EP1541782A1/en
Application granted granted Critical
Publication of EP1541782B1 publication Critical patent/EP1541782B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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

  • This invention relates to blades for carpet and tile floor stripping machines and more particularly to an angled carbide tipped blade.
  • Another type of floor stripping machine has a blade resting on the floor like a plow with a pushing force applied behind the blade parallel to the floor. However it is difficult to keep the blade flat on the floor and the blade will ride up over the material to be stripped.
  • a further type of stripping machine representing the closest prior art, is described in US 4,860,450 which can strip walls and floor coverings. It comprises a casing, including an electric motor attached to a gearbox, and a circular disc blade having one or more cutting edges at its periphery. To increase longevity and wear of the blade, the cutting edge may be faced with carbide.
  • the blade is generally concave in profile and has sufficient flexibility to allow the blade to flex when pressed against the surface to be stripped.
  • the machine relies upon pressure exerted by the operator in use to present the blade to the surface at the right angle.
  • an angled stripper blade has a shoe portion for riding on the floor and having the weight of the machine on it for engaging the floor.
  • a blade on the from portion of the shoe is held parallel to the floor for skiving the ceramic tiles, carpet, tile, adhesive or other material from the floor surface.
  • the blade angle relative to the floor is optimized for stripping the floor.
  • the carbide tip on the shoe is stronger and last longer than a metal blade and can be changed easily when the tip gets dull.
  • the figure is a side view of the angled blade shank.
  • the figure shows a blade 16 having a carbide insert 10 for engaging ceramic tiles or other material to be removed from a floor.
  • the blade 16 has a flat bottom portion 12 for riding on the floor and holding the blade parallel to the surface of the floor.
  • the head of the blade 15 is attached to the top of blade 16 and has a shank 18 attached at an angle which is on the order of 22 degrees from the floor such that the weight of the stripper machine can be used to push down on the blade 12 and keep the blade on the floor such that the carbide insert 10 can skive the unwanted material from the floor.
  • the shank 18 has an aperture 20 for attaching the shank to the stripper machine such that the weight of the machine rests on the surface 12 of blade 16.
  • the angle of the shank in the figure is 22 degrees which is favorable for extending the blade out in front of the machine while placing the weight of the stripper machine on the back portion of the blade 16.
  • the front portion of the blade 16 with the carbide insert 10 has the weight of the machine behind it for pushing on the material to be removed.
  • the carbide insert 10 has a tip angled at 45 degrees which has been found to be an angle which is efficient for skiving material from floors.
  • the blade angle above the insert is 20 degrees to allow the material scraped from the floor to be lifted up easily.
  • the blade 16 can be of any width. The narrower the blade width the easier it is to push along the floor to skive material therefrom but then more passes need to be made to remove all the material from the floor.
  • the carbide insert is shown with a cutting angle of 45 degrees other angles may be used depending on the type of material to be removed from the floor. Similarly the 20 degree angle on the top of the blade 16 can be changed to fit the job to be accomplished.
  • the shank 18 angle of 22 degrees can also be varied depending on the design and weight of the stripper machine and the flooring to be stripped.
  • the shank angle lies between 5 degrees and 45 degrees.
  • the shank angle lies in an optimum range between about 17 degrees and 22 degrees.

Landscapes

  • Architecture (AREA)
  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Structural Engineering (AREA)
  • Knives (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Cleaning In General (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

A floor stripping blade comprising: a blade having a flat bottom surface, a carbide insert attached to the blade, a blade head attached to the blade, a blade shank attached to the blade head for connecting the floor stripping blade to a floor stripping machine at an angle such that the weight of the floor stripping machine rests on the flat bottom surface of the blade resting on the floor in front of the floor stripping machine. <IMAGE>

Description

    Background of the Invention Field of the Invention
  • This invention relates to blades for carpet and tile floor stripping machines and more particularly to an angled carbide tipped blade.
    • Description of the Related Art
  • There are many types of floor stripping machines. In one type the blades engaging the floor are angled downward and have a large force pushing down on the blade so that it engages the floor at an angle and strips the ceramic tiles, carpet, tile, adhesives and other material from the floor. The blade tips dull quickly and have to be changed frequently.
  • Another type of floor stripping machine has a blade resting on the floor like a plow with a pushing force applied behind the blade parallel to the floor. However it is difficult to keep the blade flat on the floor and the blade will ride up over the material to be stripped.
  • A further type of stripping machine, representing the closest prior art, is described in US 4,860,450 which can strip walls and floor coverings. It comprises a casing, including an electric motor attached to a gearbox, and a circular disc blade having one or more cutting edges at its periphery. To increase longevity and wear of the blade, the cutting edge may be faced with carbide. The blade is generally concave in profile and has sufficient flexibility to allow the blade to flex when pressed against the surface to be stripped. The machine relies upon pressure exerted by the operator in use to present the blade to the surface at the right angle.
    • Summary of the Invention
  • The invention is defined in claim 1. Preferred embodiments are defined in the appended claims. As disclosed herein, an angled stripper blade has a shoe portion for riding on the floor and having the weight of the machine on it for engaging the floor. A blade on the from portion of the shoe is held parallel to the floor for skiving the ceramic tiles, carpet, tile, adhesive or other material from the floor surface. The blade angle relative to the floor is optimized for stripping the floor. The carbide tip on the shoe is stronger and last longer than a metal blade and can be changed easily when the tip gets dull.
    • Objects of the Invention
  • It is an object of the invention to quickly and easily strip a floor of ceramic tiles, carpet, tile, adhesives and other materials.
  • It is an object of the invention to provide a blade tip, which lasts longer without becoming dull.
  • It is an object of the invention to provide a stripper blade, which is easy to change.
  • It is an object of the invention to provide an angled blade with weight on the blade to keep the blade parallel to the floor.
  • It is an object of the invention to hold the blade at an optimal angle to strip the floor.
    • Brief Description of the Drawings
  • The figure is a side view of the angled blade shank.
  • Description of a Way of Carrying out the invention.
  • The figure shows a blade 16 having a carbide insert 10 for engaging ceramic tiles or other material to be removed from a floor. The blade 16 has a flat bottom portion 12 for riding on the floor and holding the blade parallel to the surface of the floor. The head of the blade 15 is attached to the top of blade 16 and has a shank 18 attached at an angle which is on the order of 22 degrees from the floor such that the weight of the stripper machine can be used to push down on the blade 12 and keep the blade on the floor such that the carbide insert 10 can skive the unwanted material from the floor.
  • The shank 18 has an aperture 20 for attaching the shank to the stripper machine such that the weight of the machine rests on the surface 12 of blade 16. The angle of the shank in the figure is 22 degrees which is favorable for extending the blade out in front of the machine while placing the weight of the stripper machine on the back portion of the blade 16. The front portion of the blade 16 with the carbide insert 10 has the weight of the machine behind it for pushing on the material to be removed.
  • The carbide insert 10 has a tip angled at 45 degrees which has been found to be an angle which is efficient for skiving material from floors. The blade angle above the insert is 20 degrees to allow the material scraped from the floor to be lifted up easily.
  • The blade 16 can be of any width. The narrower the blade width the easier it is to push along the floor to skive material therefrom but then more passes need to be made to remove all the material from the floor.
  • Although the carbide insert is shown with a cutting angle of 45 degrees other angles may be used depending on the type of material to be removed from the floor. Similarly the 20 degree angle on the top of the blade 16 can be changed to fit the job to be accomplished.
  • The shank 18 angle of 22 degrees can also be varied depending on the design and weight of the stripper machine and the flooring to be stripped. For example, in one preferred aspect, the shank angle lies between 5 degrees and 45 degrees. In another preferred aspect, the shank angle lies in an optimum range between about 17 degrees and 22 degrees.
  • Obviously, many modifications and variations of the present invention are possible within the scope of the appended claims.

Claims (6)

  1. A floor stripping blade comprising:
    a blade (16) having a flat bottom surface (12);
    a carbide insert (10) attached to the blade;
    a blade head (15) attached to the blade; and
    a blade shank (18) attached to the blade head (15) for connecting the floor stripping blade to a floor stripping machine at an angle such that the weight of the floor stripping machine rests on the flat bottom surface (12) of the blade (16) resting on the floor in front of the floor stripping machine, characterised in that the carbide insert (10) can be changed.
  2. The floor stripping blade as in claim 1 wherein:
    the carbide insert (10) has a leading cutting edge making an angle of substantially 45 degrees with respect to the surface of the floor.
  3. The floor stripping blade as in claim 1 wherein:
    the shank (18) is angled at substantially 22 degrees with respect to the floor.
  4. The floor stripping blade as in claim 1 wherein:
    the angle of the blade (16) adjacent the carbide insert (10) is substantially 20 degrees.
  5. The floor stripping blade as in claim 1 wherein:
    the blade head (15) is on the rear portion of the blade (16).
  6. The floor stripping blade as in claim 1 wherein:
    the carbide insert (10) is on the front portion of the blade (16).
EP03257818A 2003-12-12 2003-12-12 Floor stripping blade Expired - Lifetime EP1541782B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE60304130T DE60304130T2 (en) 2003-12-12 2003-12-12 Cutting tool for removing floor
DK03257818T DK1541782T3 (en) 2003-12-12 2003-12-12 Floor stripping blade
ES03257818T ES2264516T3 (en) 2003-12-12 2003-12-12 SOIL KNIFE TOOL.
AT03257818T ATE321178T1 (en) 2003-12-12 2003-12-12 CUTTING TOOL FOR REMOVAL OF FLOORING
EP03257818A EP1541782B1 (en) 2003-12-12 2003-12-12 Floor stripping blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03257818A EP1541782B1 (en) 2003-12-12 2003-12-12 Floor stripping blade

Publications (2)

Publication Number Publication Date
EP1541782A1 EP1541782A1 (en) 2005-06-15
EP1541782B1 true EP1541782B1 (en) 2006-03-22

Family

ID=34486425

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03257818A Expired - Lifetime EP1541782B1 (en) 2003-12-12 2003-12-12 Floor stripping blade

Country Status (5)

Country Link
EP (1) EP1541782B1 (en)
AT (1) ATE321178T1 (en)
DE (1) DE60304130T2 (en)
DK (1) DK1541782T3 (en)
ES (1) ES2264516T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7082686B2 (en) * 2002-11-26 2006-08-01 Anderson Martin L Angled shank blade

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2874946A (en) * 1955-10-28 1959-02-24 Vernon A Singleterry Floor covering stripper
GB8529158D0 (en) * 1985-11-27 1986-01-02 Product & Dev Network For Nort Wall covering stripper
US6105470A (en) * 1998-11-18 2000-08-22 Hutchins; Robert J. Shingle removing tool

Also Published As

Publication number Publication date
ES2264516T3 (en) 2007-01-01
DK1541782T3 (en) 2006-05-01
DE60304130T2 (en) 2006-10-05
ATE321178T1 (en) 2006-04-15
DE60304130D1 (en) 2006-05-11
EP1541782A1 (en) 2005-06-15

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