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EP4303030A1 - Racloir pour papier peint - Google Patents

Racloir pour papier peint Download PDF

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Publication number
EP4303030A1
EP4303030A1 EP23184036.4A EP23184036A EP4303030A1 EP 4303030 A1 EP4303030 A1 EP 4303030A1 EP 23184036 A EP23184036 A EP 23184036A EP 4303030 A1 EP4303030 A1 EP 4303030A1
Authority
EP
European Patent Office
Prior art keywords
wallpaper
blades
wallpaper scraper
scraper according
web
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.)
Withdrawn
Application number
EP23184036.4A
Other languages
German (de)
English (en)
Inventor
Rolf Kammerer
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.)
Kammerer GmbH
Original Assignee
Kammerer GmbH
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 Kammerer GmbH filed Critical Kammerer GmbH
Publication of EP4303030A1 publication Critical patent/EP4303030A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C7/00—Paperhanging
    • B44C7/02—Machines, apparatus, tools or accessories therefor
    • B44C7/027—Machines, apparatus, tools or accessories for removing wall paper
    • 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

Definitions

  • the invention relates to a wallpaper scraper, i.e. a tool for removing wallpaper from walls.
  • the invention also relates to an electrical machine that works with such a wallpaper scraper.
  • Wallpaper scrapers are known as hand-operated tools. Such wallpaper scrapers have a blade that is attached to a handle. Wallpaper scrapers are also known and are used as tools in electrical machines. An example of such a wallpaper scraping machine is the "Skil Electric Scraper 7710", in which an electric motor moves the tool back and forth, making wallpaper scraping easier.
  • the object of the present invention is to show a way in which wallpaper residue can be removed more efficiently from a wall using an electric machine and to provide a tool for such a machine.
  • a wallpaper scraper has a carrier disk for mounting on a shaft, and a plurality of blades attached to the carrier disk, each of the blades being held by a clamp and thus advantageously easy to replace when worn.
  • a wallpaper scraper is used as part of a wallpaper scraping machine which has an electric motor and a shaft driven by the electric motor.
  • the wallpaper scraper is attached to the shaft of the wallpaper scraping machine as an interchangeable tool and is set in rotation by the shaft. Rotating blades can be used to remove wallpaper residue at least as well as with standard devices that move a blade back and forth linearly.
  • a wallpaper scraper according to the invention can also be used as a tool with a portable grinder or other machine, such as a machine for smoothing plaster or concrete that has not yet solidified. To do this, it is sufficient to mount a wallpaper scraper according to the invention on the tool plate driven by a shaft instead of a grinding wheel or similar.
  • the blades of a wallpaper scraper according to the invention can all be held by a common clamp which is attached to the carrier disk. However, in terms of cost and weight, it is usually better if each blade is held by its own clamp.
  • each of the blades is clamped between two clamping jaws, which are connected to one another by a latching connection, preferably by an unlockable latching connection.
  • Unlockable locking connections allow for easy blade replacement.
  • Unlockable latching connections can be realized by allowing a component of the connection to be elastically deformed, for example by bending a latching hook out of its latching position and thus releasing the latching connection.
  • the unlockable locking connection is preferably effected by a resiliently movable web which carries at least one locking hook and a Unlocking of the locking connection is made possible by pressing on an end section of the web, one of the two clamping jaws carrying a resiliently movable web and the other of the two clamping jaws having an opening for inserting the web. In this way, blades can be replaced quickly and with little effort; in particular, no tools are required to replace blades.
  • the wallpaper scraper shown has a carrier disk 1 and several blades 2 attached to the carrier disk, each of which is held by a clamp.
  • the clamps each have two clamping jaws 3, 4, between which the blades 2 are clamped.
  • a first of the two clamping jaws 3 is mounted on the carrier disk 1, for example by gluing, screwing or riveting.
  • the second clamping jaw 4 is attached to the first clamping jaw 3 by a releasable locking connection. It is possible for the blades 2 to be held between the clamping jaws 3, 4 exclusively in a non-positive manner, i.e. in a clamping manner. However, the blades 2 can also be attached to the second clamping jaw 4 in order to facilitate the replacement of blades, for example in a materially bonded manner, for example by gluing.
  • the second clamping jaw 4 i.e. the removable clamping jaw, has two or more resiliently movable webs 5, which carry one or more locking hooks 6.
  • the bridge 5 is through a Opening of the first clamping jaw 3 attached to the carrier disk 1 is inserted. An inner surface of the opening slides over a front inclined surface of the locking hook 6 in the insertion direction.
  • the locking hook 6 On the rear side in the insertion direction, the locking hook 6 has a steeper, preferably vertical surface, which effects a locking connection. In order to release the locking connection, the free end of the web 5 can be pressed and the locking hook 6 can be released from its engagement.
  • the web 5 carries several locking hooks 6 arranged in a row one behind the other, similar to a cable tie.
  • the insertion direction encloses an acute angle with a clamping surface, i.e. a surface defined by the held blade 2, for example an angle between 5° and 15°.
  • a clamping surface i.e. a surface defined by the held blade 2
  • the distance between the two clamping jaws 3, 4 is only slowly reduced when inserted; The reduction in the distance between the two clamping jaws 3, 4 is therefore only a fraction of the relative movement of the two clamping jaws 3, 4 to one another in the insertion direction.
  • the blades 2 form an acute angle with a radial direction, i.e. a plane defined by the carrier disk. Angles between 10° and 25°, preferably between 20° and 25°, are favorable.
  • the carrier disk 1 can have an opening, not shown, in order to be attached to a shaft. It is also possible to attach the carrier disk to a plate of a machine attached to a shaft, for example with a Velcro fastener.

Landscapes

  • Paper (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
EP23184036.4A 2022-07-07 2023-07-07 Racloir pour papier peint Withdrawn EP4303030A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022116946.4A DE102022116946A1 (de) 2022-07-07 2022-07-07 Tapetenschaber

Publications (1)

Publication Number Publication Date
EP4303030A1 true EP4303030A1 (fr) 2024-01-10

Family

ID=87158475

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23184036.4A Withdrawn EP4303030A1 (fr) 2022-07-07 2023-07-07 Racloir pour papier peint

Country Status (3)

Country Link
US (1) US20240010022A1 (fr)
EP (1) EP4303030A1 (fr)
DE (1) DE102022116946A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5996231A (en) * 1997-08-06 1999-12-07 Hyde Tools Scraping tool with replaceable blade and controlled quick-release clamp
US20040103542A1 (en) * 2002-12-02 2004-06-03 Gordon Jones Ergonomic Scraper
EP1484000B1 (fr) * 2003-06-05 2009-02-25 Martor Kg Racloir
US20090235535A1 (en) * 2008-03-24 2009-09-24 Helen Of Troy Limited, A Barbados Company Scraper
US8356415B2 (en) * 2009-12-18 2013-01-22 Wen-Chen Lin Scraping tool with blade lock assembly
US10350646B1 (en) * 2016-03-11 2019-07-16 Kraig Darrell Nichols, Jr. Automated surface scraping apparatus

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2800672A (en) * 1954-11-05 1957-07-30 Gilyan Jess Tool for plastering with means for selectively exposing a pair of work engaging edges
US3708880A (en) * 1970-08-17 1973-01-09 J Norfleet Scarifier for wall coverings
US3858367A (en) * 1973-09-10 1975-01-07 Jack W Whitsett Abrading device
US4614380A (en) * 1983-11-03 1986-09-30 The Boeing Company Power driven rotary floor preparation device
US5319853A (en) * 1992-11-02 1994-06-14 Great Neck Saw Manufacturing, Inc. Scraper
US5409299A (en) * 1993-11-03 1995-04-25 Cooper Floor Services, Inc. Apparatus for removing floor covering
US5950312A (en) * 1997-06-18 1999-09-14 William Zinsser & Co., Incorporated Wallpaper scarifying device
US7690970B2 (en) * 2007-01-19 2010-04-06 Epoxy-Tech, Inc. Abrasive preparation device with an improved abrasion element assembly
US8056226B2 (en) * 2008-02-25 2011-11-15 Cooper Technologies Company Method of manufacturing a dual interface separable insulated connector with overmolded faraday cage
US8657384B1 (en) * 2008-05-15 2014-02-25 King Kutter, Inc. Track scraper

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5996231A (en) * 1997-08-06 1999-12-07 Hyde Tools Scraping tool with replaceable blade and controlled quick-release clamp
US20040103542A1 (en) * 2002-12-02 2004-06-03 Gordon Jones Ergonomic Scraper
EP1484000B1 (fr) * 2003-06-05 2009-02-25 Martor Kg Racloir
US20090235535A1 (en) * 2008-03-24 2009-09-24 Helen Of Troy Limited, A Barbados Company Scraper
US8356415B2 (en) * 2009-12-18 2013-01-22 Wen-Chen Lin Scraping tool with blade lock assembly
US10350646B1 (en) * 2016-03-11 2019-07-16 Kraig Darrell Nichols, Jr. Automated surface scraping apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "ROKAMAT Schaber-Scheiben - Ø200mm - 2er Pack - zum Entfernen von Tapeten oder für andere Schabearbeiten geeignet : Amazon.de: Baumarkt", 23 August 2014 (2014-08-23), www.amazon.de, pages 1 - 6, XP093105522, Retrieved from the Internet <URL:https://www.amazon.de/Diameter-Suitable-Removing-Wallpaper-Scraping/dp/B00N03N5CY/ref=pd_bxgy_d_sccl_1/257-5341271-5861242?pd_rd_w=g3IUK&content-id=amzn1.sym.1fd66f59-86e9-493d-ae93-3b66d16d3ee0&pf_rd_p=1fd66f59-86e9-493d-ae93-3b66d16d3ee0&pf_rd_r=QQ4CMFKVYGPMY80Q4C00&pd_rd_wg=mQ1hc&pd_rd_r=4d61410c> [retrieved on 20231124] *

Also Published As

Publication number Publication date
DE102022116946A1 (de) 2024-01-18
US20240010022A1 (en) 2024-01-11

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