EP0573081A1 - Flat brush structure, for example a paint brush - Google Patents
Flat brush structure, for example a paint brush Download PDFInfo
- Publication number
- EP0573081A1 EP0573081A1 EP93200997A EP93200997A EP0573081A1 EP 0573081 A1 EP0573081 A1 EP 0573081A1 EP 93200997 A EP93200997 A EP 93200997A EP 93200997 A EP93200997 A EP 93200997A EP 0573081 A1 EP0573081 A1 EP 0573081A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support member
- brush structure
- bristles
- monolithic block
- brush
- 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- Withdrawn
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B5/00—Brush bodies; Handles integral with brushware
- A46B5/0095—Removable or interchangeable brush heads
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B7/00—Bristle carriers arranged in the brush body
- A46B7/04—Bristle carriers arranged in the brush body interchangeably removable bristle carriers
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B7/00—Bristle carriers arranged in the brush body
- A46B7/04—Bristle carriers arranged in the brush body interchangeably removable bristle carriers
- A46B7/044—Sliding connections for bristle carriers
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B7/00—Bristle carriers arranged in the brush body
- A46B7/04—Bristle carriers arranged in the brush body interchangeably removable bristle carriers
- A46B7/046—Threaded or screw connections for bristle carriers
- A46B7/048—Lock screw to secure carriers
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B2200/00—Brushes characterized by their functions, uses or applications
- A46B2200/20—Brushes for applying products to surfaces in general
- A46B2200/202—Applicator paint brush
Definitions
- This invention relates to brushes in general and in particular to large-dimension brushes, such as so-called emulsion brushes.
- Usual large-dimension brushes are known to comprise a flat plate-like member to which one end of the bristles (or filaments) is secured, these being arranged mutually parallel.
- Said plate-like member is usually formed from a type of plastics tray with low side walls, which is filled with a self-hardening adhesive substance forming a monolithic base into which the bristle ends are embedded.
- the plate-like member is fixed to a support member comprising a frontal recess into which the plate-like member is inserted and fixed.
- a handle is also fixed to this support member to enable the brush to be gripped.
- the object of the present invention is to improve the brushes of the stated type, in particular to more rationalize the consumption of the constituent materials of the brush and to increase its versatility of use.
- the brush of the invention comprises:
- the monolithic base and the support member possess elements shaped to define a dovetail joint when in mutual combination.
- the monolithic block carrying the bristles is therefore independent of the support member, so that during use, as the bristles have a relatively short life because of their relatively rapid wear, it can be removed from the support member and be replaced with another comprising new bristles.
- the bristle-carrying monolithic block can be formed as a succession of modular blocks inserted into the same support member.
- lengthy bristle-carrying monolithic blocks can be used, from which portions of the required length can be separated by a cutting member.
- the invention also provides an advantageous configuration of the support member, in which the channelled base receiving the bristle block or blocks is a segment, cut to size from a section bar of indefinite length, which on the opposite face to that receiving the bristles comprises fitting and retention means for the handle.
- Figure 1 is a perspective view of a first embodiment of the invention.
- Figure 2 is a section on a transverse vertical plane of Figure 1.
- Figure 3 is a top plan view of Figure 2.
- Figure 4 is a section on a transverse vertical plane showing a second embodiment of the invention.
- Figure 5 is an exploded perspective view of a third embodiment of the invention.
- Figure 6 is a side view of the invention of Figure 5 in the assembled configuration.
- Figure 7 is an enlarged detailed view of the section taken on the plane VII-VII of Figure 6.
- the brush support member indicated by 20 in the figures, comprises a flat central portion 21, and two opposing side walls 22 extending along two longitudinal sides of the portion 21, they projecting downwards (ie towards the bristle pack 9) and having at least their lower end edges converging towards each other.
- the monolithic block, indicated by 10, and which secures one end of the bristles 9, comprises a flat upper face, and two longitudinal parallel sides 12 shaped such that their outer cross-sectional profile is substantially complementary to the inner cross-sectional profile of said side walls 22.
- the sides 12 of the monolithic block 10 together with the side walls 22 of the support member 20 form a dovetail joint narrow enough to prevent mutual axial sliding.
- the lower face of the portion 21 is completely flat and the side walls 22 have their lower edge inclined downwards and inwards.
- the monolithic block 10 consequently has a flat upper face, and two sides 12 with their lower portion inclined downwards and inwards.
- the lower face of the portion 21 is flat only close to the lateral edges, and the side walls 22 comprise a vertical portion followed by the lower end edge, which is horizontal and facing inwards.
- the monolithic block 10 has its sides 12 vertical and projecting slightly outwards laterally from the bristle pack 9.
- the monolithic block 10 is inserted into and withdrawn from the support member 20 by frontal sliding, with movement parallel to the generators of the joint-forming profiles defined by the block 10 and member 20.
- Said insertion fit between the block 10 and member 20 can be slightly forced to prevent the block 10 being able to easily withdraw from the member 20.
- appropriate means can be provided to prevent this withdrawal.
- self-tapping screws 24 can be provided for insertion into through holes provided in the walls 22 of the member 20, so that when the screws 24 are screwed through these holes their ends screw into the sides 12 of the monolithic block 10.
- the monolithic block 10 with its bristles is prepared by usual brush manufacturing methods, and is conveniently formed from a mass of synthetic resin hardened in a separate openable mould, into which one end of the bristles 9 is embedded by said usual methods.
- a thin flat plate 14 of different material may be embedded in this resin mass to define the upper face of the block 10 (see Figure 4).
- the support member 20 can be of any known material, such as synthetic resin, wood or aluminium. It can be advantageously formed from an extruded section cut to the required length.
- two symmetrically facing profiled elements 26 are provided on the upper face of the portion 21 to define a longitudinal seat 260 with an upper through slot 27.
- Said seat 260 is intended to receive a plate 7 rigid with one end of the handle 8 and having plan dimensions such that it can be inserted into the seat 260, to then remain fixed therein by rotating it through 90° as is apparent from Figures 2 and 3.
- this can be provided with a threaded seat 29 of known type, into which a threaded end of the handle 8 is screwed (as shown in Figure 4).
- the monolithic blocks 10 are independent of each other, they are of modular length and are fitted to the member 20 in the aforestated manner.
- the support member 20 has a length such as to enable several side-by-side blocks 10 to be simultaneously retained.
- the support member 20 comprises the same elements as shown in Figures 1 to 3 and are identified here by the same reference numerals.
- the formal differences between the elements of Figures 1 to 3 and the corresponding elements of Figures 5 to 7 are not important from the point of view of the result.
- Suitable means can be provided for preventing withdrawal of the blocks 10 from the member 20.
- the member 20 comprises two symmetrically facing upper sections 26, which form the insertion seat 260.
- An intermediate element 200 comprising a threaded hole 208 for receiving the handle 8, has two edges complementary to the seat 260, into which it is inserted endwise.
- the element 200 is inserted into and withdrawn from the seat 260 longitudinally.
- the insertion fit between the seat 260 and the element 200 can be slightly forced to prevent mutual withdrawal.
- a brush By cutting the member 20 to the required length and fitting two or more blocks 10 thereto, a brush can be formed as long as desired.
- the element 200 has a length which is independent of the member 20 associated with it, which latter can be cut to the desired length from an extruded section of indefinite length.
- the blocks 10 with their bristles can be replaced when worn, whereas the handle 8, the element 200 and the member 20 can be used for an indefinite time, so achieving further saving.
Landscapes
- Brushes (AREA)
Abstract
The brush structure (1), e.g. a paint brush comprises at least one monolithic block (10) of rigid resin which secures one end of the bristles (9), and a support member (20) joined to a single handle (8); the monolithic block (10) and the support member (20) are mutually independent and are shaped so that they can be fitted together by mutual insertion, they being freely connectable and disconnectable.
Description
- This invention relates to brushes in general and in particular to large-dimension brushes, such as so-called emulsion brushes.
- Usual large-dimension brushes are known to comprise a flat plate-like member to which one end of the bristles (or filaments) is secured, these being arranged mutually parallel. Said plate-like member is usually formed from a type of plastics tray with low side walls, which is filled with a self-hardening adhesive substance forming a monolithic base into which the bristle ends are embedded.
- The plate-like member is fixed to a support member comprising a frontal recess into which the plate-like member is inserted and fixed. A handle is also fixed to this support member to enable the brush to be gripped.
- The object of the present invention is to improve the brushes of the stated type, in particular to more rationalize the consumption of the constituent materials of the brush and to increase its versatility of use.
- This and further objects are attained by the present invention as characterised in the claims.
- The brush of the invention comprises:
- at least one rigid monolithic block which secures one end of the bristles;
- a support member joined to a handle for gripping the brush;
- said at least one monolithic block and said support member being mutually independent and being shaped so that they can be fitted together by mutual insertion, they being freely connectable and disconnectable;
- said at least one monolithic block consisting of a mass of bristle retention adhesive formed in a separate openable mould, with possible incorporation of a rigid base of different material.
- Specifically, the monolithic base and the support member possess elements shaped to define a dovetail joint when in mutual combination.
- The monolithic block carrying the bristles is therefore independent of the support member, so that during use, as the bristles have a relatively short life because of their relatively rapid wear, it can be removed from the support member and be replaced with another comprising new bristles. The support member plus handle, the production cost of which forms
- a considerable part of the overall brush production cost, can therefore be used for an indefinite time because it usually undergoes no wear or damage during use. It is therefore unnecessary to dispose of the support member plus handle (as happens with known brushes) when the bristles have worn down.
- Hence, considerable economy and versatility are achieved in the use of the brush, it being necessary merely to replace the monolithic block carrying the bristles.
- Further according to the invention, the bristle-carrying monolithic block can be formed as a succession of modular blocks inserted into the same support member.
- Alternatively, lengthy bristle-carrying monolithic blocks can be used, from which portions of the required length can be separated by a cutting member.
- Finally, the invention also provides an advantageous configuration of the support member, in which the channelled base receiving the bristle block or blocks is a segment, cut to size from a section bar of indefinite length, which on the opposite face to that receiving the bristles comprises fitting and retention means for the handle.
- Further characteristics and advantages of the present invention will be more apparent from the detailed description of some embodiments thereof given hereinafter with reference to the accompanying figures.
- Figure 1 is a perspective view of a first embodiment of the invention.
- Figure 2 is a section on a transverse vertical plane of Figure 1.
- Figure 3 is a top plan view of Figure 2.
- Figure 4 is a section on a transverse vertical plane showing a second embodiment of the invention.
- Figure 5 is an exploded perspective view of a third embodiment of the invention.
- Figure 6 is a side view of the invention of Figure 5 in the assembled configuration.
- Figure 7 is an enlarged detailed view of the section taken on the plane VII-VII of Figure 6.
- With reference to Figures 1-4 the brush support member, indicated by 20 in the figures, comprises a flat
central portion 21, and twoopposing side walls 22 extending along two longitudinal sides of theportion 21, they projecting downwards (ie towards the bristle pack 9) and having at least their lower end edges converging towards each other. - The monolithic block, indicated by 10, and which secures one end of the
bristles 9, comprises a flat upper face, and two longitudinalparallel sides 12 shaped such that their outer cross-sectional profile is substantially complementary to the inner cross-sectional profile of saidside walls 22. In other words, thesides 12 of themonolithic block 10 together with theside walls 22 of thesupport member 20 form a dovetail joint narrow enough to prevent mutual axial sliding. - In the embodiment shown in Figures 1 to 3, the lower face of the
portion 21 is completely flat and theside walls 22 have their lower edge inclined downwards and inwards. Themonolithic block 10 consequently has a flat upper face, and twosides 12 with their lower portion inclined downwards and inwards. - In the embodiment shown in Figure 4, the lower face of the
portion 21 is flat only close to the lateral edges, and theside walls 22 comprise a vertical portion followed by the lower end edge, which is horizontal and facing inwards. Themonolithic block 10 has itssides 12 vertical and projecting slightly outwards laterally from thebristle pack 9. - The
monolithic block 10 is inserted into and withdrawn from thesupport member 20 by frontal sliding, with movement parallel to the generators of the joint-forming profiles defined by theblock 10 andmember 20. - Said insertion fit between the
block 10 andmember 20 can be slightly forced to prevent theblock 10 being able to easily withdraw from themember 20. Alternatively, appropriate means can be provided to prevent this withdrawal. For example, self-tappingscrews 24 can be provided for insertion into through holes provided in thewalls 22 of themember 20, so that when thescrews 24 are screwed through these holes their ends screw into thesides 12 of themonolithic block 10. - The
monolithic block 10 with its bristles is prepared by usual brush manufacturing methods, and is conveniently formed from a mass of synthetic resin hardened in a separate openable mould, into which one end of thebristles 9 is embedded by said usual methods. A thinflat plate 14 of different material may be embedded in this resin mass to define the upper face of the block 10 (see Figure 4). - The
support member 20 can be of any known material, such as synthetic resin, wood or aluminium. It can be advantageously formed from an extruded section cut to the required length. - In this case, as illustrated in Figures 2 and 3, two symmetrically facing profiled
elements 26 are provided on the upper face of theportion 21 to define alongitudinal seat 260 with an upper throughslot 27. - Said
seat 260 is intended to receive aplate 7 rigid with one end of thehandle 8 and having plan dimensions such that it can be inserted into theseat 260, to then remain fixed therein by rotating it through 90° as is apparent from Figures 2 and 3. - Alternatively, to fix the
handle 8 to themember 20, this can be provided with a threadedseat 29 of known type, into which a threaded end of thehandle 8 is screwed (as shown in Figure 4). - In the embodiment illustrated in Figures 5-7 at least two
monolithic blocks 10 of rigid synthetic resin are provided, carrying thebristles 9 as heretofore described. - The
monolithic blocks 10 are independent of each other, they are of modular length and are fitted to themember 20 in the aforestated manner. - In addition the
support member 20 has a length such as to enable several side-by-side blocks 10 to be simultaneously retained. - The
support member 20 comprises the same elements as shown in Figures 1 to 3 and are identified here by the same reference numerals. The formal differences between the elements of Figures 1 to 3 and the corresponding elements of Figures 5 to 7 are not important from the point of view of the result. - Suitable means, of the type shown in Figure 2, can be provided for preventing withdrawal of the
blocks 10 from themember 20. - As stated, the
member 20 comprises two symmetrically facingupper sections 26, which form theinsertion seat 260. - An
intermediate element 200, comprising a threadedhole 208 for receiving thehandle 8, has two edges complementary to theseat 260, into which it is inserted endwise. - The
element 200 is inserted into and withdrawn from theseat 260 longitudinally. - The insertion fit between the
seat 260 and theelement 200 can be slightly forced to prevent mutual withdrawal. - By cutting the
member 20 to the required length and fitting two ormore blocks 10 thereto, a brush can be formed as long as desired. - This has substantial manufacturing advantages in that to form brushes of any desired length it is necessary only to manufacture
blocks 10 of modular dimensions, which can be small, so saving on plant. - Typically, the
element 200 has a length which is independent of themember 20 associated with it, which latter can be cut to the desired length from an extruded section of indefinite length. - Hence using a
single element 20 and a single handle 8 (these being of relatively high cost), different-length brushes can be formed, this representing a considerable saving in the brush manufacturing cost. - The
blocks 10 with their bristles can be replaced when worn, whereas thehandle 8, theelement 200 and themember 20 can be used for an indefinite time, so achieving further saving.
Claims (8)
- A brush structure, characterised by comprising:- at least one monolithic block (10) of rigid resin which secures one end of the bristles (9);- a support member (20) joined to a handle (8) for gripping the brush;- said at least one monolithic block (10) and said support member (20) being mutually independent and being shaped so that they can be fitted together by mutual insertion, they being freely connectable and disconnectable.
- A brush structure as claimed in claim 1, characterised in that said monolithic block (10) and said support member (20) comprise means (12, 22) shaped to define when in mutual combination a dovetail joint allowing at least one block (10) to be inserted into and withdrawn from the member (20) in a direction perpendicular to the direction of the bristles (9).
- A brush structure as claimed in claim 2, characterised in that:- said support member (20) possesses, along two parallel sides, two opposing parallel side walls (22) having at least their lower end edges converging towards each other,- said at least one monolithic block (10) having two parallel sides (12),- the side walls (22) of said support member (20) embracing said sides (12) both upperly, laterally and lowerly.- at least one of the ends of the support member (20) being open to allow the monolithic block (10) to pass in said insertion and withdrawal direction.
- A brush structure as claimed in claim 1, characterised in that each block (10) is formed from a mass of hardened synthetic resin in which one end of the bristles (9) is embedded.
- A brush structure as claimed in claim 1, characterised in that the support member (20) comprises a portion (21) from which there project two opposing side walls (22) facing the bristle pack (9) and having at least their end edges converging towards each other, and two parallel section pieces (26) projecting from the side not occupied by the bristles (9) and forming a seat (260) into which the handle (8) is fixed by a plate (7) which can be force-fitted into said seat (260) by rotating it through 90 degrees.
- A brush structure as claimed in claim 1, characterised in that said support member (20) is a piece of extruded section, cut to the desired length.
- A brush structure as claimed in claim 1, characterised by comprising a single monolithic block (10).
- A brush structure as claimed in claim 1, characterised by comprising an intermediate element (200) to be joined to the handle (8) and to be removably fitted into the seat (206) present on that face of the member (20) not occupied by the bristles (9).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITRE920048U | 1992-06-04 | ||
IT92RE000048 IT228644Y1 (en) | 1992-06-04 | 1992-06-04 | BRUSH STRUCTURE |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0573081A1 true EP0573081A1 (en) | 1993-12-08 |
Family
ID=11398220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93200997A Withdrawn EP0573081A1 (en) | 1992-06-04 | 1993-04-06 | Flat brush structure, for example a paint brush |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0573081A1 (en) |
IT (1) | IT228644Y1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0888734A2 (en) * | 1997-05-30 | 1999-01-07 | Lekue, S. L. | Cleaning device |
WO2004008909A1 (en) * | 2002-07-16 | 2004-01-29 | Nespoli Engineering Kereskedelmi Korlatolt Felelossegu Tarsasag | Brush comprising a handle and a bristle-bearing head |
WO2009127280A3 (en) * | 2008-04-16 | 2010-04-15 | G.B. Boucherie N.V. | Paintbrush |
CN103099425A (en) * | 2011-11-15 | 2013-05-15 | 常熟市永祥机电有限公司 | Brush with handle |
DE102017004910A1 (en) * | 2017-05-18 | 2018-11-22 | Ingo Kern | Malerabstaubbürste |
CN110578948A (en) * | 2019-10-22 | 2019-12-17 | 珠海格力电器股份有限公司 | Fume exhaust fan |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2712145A (en) * | 1950-11-01 | 1955-07-05 | Karnes Frank | Brush having detachable sections |
US3065480A (en) * | 1960-01-04 | 1962-11-27 | Sexton William Wait | Tooth brushes |
US4469223A (en) * | 1982-05-12 | 1984-09-04 | T. S. Simms & Co. Limited | Paint brushes |
US4882802A (en) * | 1988-06-15 | 1989-11-28 | Levere Jr Chester C | Versatile construction broom holder |
DE3834301A1 (en) * | 1988-10-08 | 1990-04-12 | Dietsche Roman Kg | Cleaning implement |
-
1992
- 1992-06-04 IT IT92RE000048 patent/IT228644Y1/en active IP Right Grant
-
1993
- 1993-04-06 EP EP93200997A patent/EP0573081A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2712145A (en) * | 1950-11-01 | 1955-07-05 | Karnes Frank | Brush having detachable sections |
US3065480A (en) * | 1960-01-04 | 1962-11-27 | Sexton William Wait | Tooth brushes |
US4469223A (en) * | 1982-05-12 | 1984-09-04 | T. S. Simms & Co. Limited | Paint brushes |
US4882802A (en) * | 1988-06-15 | 1989-11-28 | Levere Jr Chester C | Versatile construction broom holder |
DE3834301A1 (en) * | 1988-10-08 | 1990-04-12 | Dietsche Roman Kg | Cleaning implement |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0888734A2 (en) * | 1997-05-30 | 1999-01-07 | Lekue, S. L. | Cleaning device |
EP0888734A3 (en) * | 1997-05-30 | 1999-09-29 | Lekue, S. L. | Cleaning device |
WO2004008909A1 (en) * | 2002-07-16 | 2004-01-29 | Nespoli Engineering Kereskedelmi Korlatolt Felelossegu Tarsasag | Brush comprising a handle and a bristle-bearing head |
WO2009127280A3 (en) * | 2008-04-16 | 2010-04-15 | G.B. Boucherie N.V. | Paintbrush |
US9498050B2 (en) | 2008-04-16 | 2016-11-22 | Gb Boucherie Nv | Paint brush |
CN103099425A (en) * | 2011-11-15 | 2013-05-15 | 常熟市永祥机电有限公司 | Brush with handle |
DE102017004910A1 (en) * | 2017-05-18 | 2018-11-22 | Ingo Kern | Malerabstaubbürste |
CN110578948A (en) * | 2019-10-22 | 2019-12-17 | 珠海格力电器股份有限公司 | Fume exhaust fan |
Also Published As
Publication number | Publication date |
---|---|
IT228644Y1 (en) | 1998-05-07 |
ITRE920048U1 (en) | 1993-12-04 |
ITRE920048V0 (en) | 1992-06-04 |
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Legal Events
Date | Code | Title | Description |
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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 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE LI LU MC NL PT SE |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 19940609 |