EP4375032A1 - Ein werkzeug zur verarbeitung von gehärtetem polyurethanschaum - Google Patents
Ein werkzeug zur verarbeitung von gehärtetem polyurethanschaum Download PDFInfo
- Publication number
- EP4375032A1 EP4375032A1 EP23211617.8A EP23211617A EP4375032A1 EP 4375032 A1 EP4375032 A1 EP 4375032A1 EP 23211617 A EP23211617 A EP 23211617A EP 4375032 A1 EP4375032 A1 EP 4375032A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- blade
- polyurethane foam
- hardened polyurethane
- processing
- 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.)
- Pending
Links
- 229920005830 Polyurethane Foam Polymers 0.000 title claims abstract description 11
- 239000011496 polyurethane foam Substances 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 3
- 239000006260 foam Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000003637 basic solution Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B3/00—Hand knives with fixed blades
- B26B3/08—Hand knives with fixed blades specially adapted for cutting cardboard, or wall, floor, or like covering materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B9/00—Blades for hand knives
- B26B9/02—Blades for hand knives characterised by the shape of the cutting edge, e.g. wavy
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/165—Implements for finishing work on buildings for finishing joints, e.g. implements for raking or filling joints, jointers
- E04F21/1652—Implements for finishing work on buildings for finishing joints, e.g. implements for raking or filling joints, jointers for smoothing and shaping joint compound to a desired contour
Definitions
- the utility model relates to a tool for processing hardened polyurethane foam, used in particular for installing window and door joinery and insulation works.
- Polyurethane foams are commonly used in construction and finishing works, in particular for installing window and door joinery, as well as insulating roofs and buildings. They are characterised by the so-called post-expansion, that is a 30-100% increase in volume after application in the target place, which ultimately creates a non-uniform surface that requires levelling.
- a utility model is known from Chinese Patent Description CN201776764U , comprising a special knife set for cutting foam plastic, which includes at least five knives used in combination, wherein each knife is provided with a blade and a handle.
- the special knife set is comprised of at least a general-purpose knife for trimming, a serrated drilling knife, a special knife for emptying cavities, a special knife for chamfering, and a special bevel knife for shaving.
- this set is not suitable for levelling the surface of insulating materials, especially hardened polyurethane foam covered with a layer of liquid foil.
- the blade is preferred for the blade to be made of steel which is climb milled and vacuum-hardened.
- the handle of the tool is shaped to resemble the grip of a hand, which in turn protects the hand from slipping onto the cutting portion and makes the tool safe for the user.
- fig. 1 shows a side view of the tool
- fig. 2 shows a view of the tool from the side of the cutting portion
- fig. 3 shows the state of the art in a form of commonly known and used tools.
- the tool for processing hardened polyurethane foam is constructed from a profiled handle 1 made of plastic and a blade 2 made of steel which is climb milled and vacuum-hardened, which prevents permanent deformation of the blade during use.
- the cutting edge of the blade 2 is provided with a smooth cutting portion 3 which has a thickness and height decreasing with length providing high flexibility.
- the cutting edge of the blade 2 ends with an acute angle 4 of 72 degrees which allows reaching hard-to-reach places.
- the spine of the blade 2 ends with an obtuse angle 5 which provides safety for the user.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Polyurethanes Or Polyureas (AREA)
- Knives (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL131096U PL73319Y1 (pl) | 2022-11-22 | 2022-11-22 | Narzędzie do obróbki utwardzonej piany poliuretanowej |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4375032A1 true EP4375032A1 (de) | 2024-05-29 |
Family
ID=85480570
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP23211617.8A Pending EP4375032A1 (de) | 2022-11-22 | 2023-11-22 | Ein werkzeug zur verarbeitung von gehärtetem polyurethanschaum |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP4375032A1 (de) |
PL (1) | PL73319Y1 (de) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1820234A (en) * | 1928-09-29 | 1931-08-25 | Lees Nora Elsa | Cutlery and the like |
US2429405A (en) * | 1939-08-15 | 1947-10-21 | Clarence A Dringman | Knife |
US20080016704A1 (en) * | 2006-07-18 | 2008-01-24 | Hisatsugu Henry Haneda | Cutting tools |
CN201776764U (zh) | 2010-06-23 | 2011-03-30 | 山东潍坊福田模具有限责任公司 | 泡塑切割专用刀具组 |
US20120124844A1 (en) * | 2010-11-24 | 2012-05-24 | Joachim Droese | Chef's Knife |
-
2022
- 2022-11-22 PL PL131096U patent/PL73319Y1/pl unknown
-
2023
- 2023-11-22 EP EP23211617.8A patent/EP4375032A1/de active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1820234A (en) * | 1928-09-29 | 1931-08-25 | Lees Nora Elsa | Cutlery and the like |
US2429405A (en) * | 1939-08-15 | 1947-10-21 | Clarence A Dringman | Knife |
US20080016704A1 (en) * | 2006-07-18 | 2008-01-24 | Hisatsugu Henry Haneda | Cutting tools |
CN201776764U (zh) | 2010-06-23 | 2011-03-30 | 山东潍坊福田模具有限责任公司 | 泡塑切割专用刀具组 |
US20120124844A1 (en) * | 2010-11-24 | 2012-05-24 | Joachim Droese | Chef's Knife |
Also Published As
Publication number | Publication date |
---|---|
PL73319Y1 (pl) | 2024-01-29 |
PL131096U1 (pl) | 2023-03-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED |
|
AK | Designated contracting states |
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