EP1031296A2 - Dispositif de brossage - Google Patents

Dispositif de brossage Download PDF

Info

Publication number: EP1031296A2
Authority: EP; European Patent Office
Prior art keywords: brush; accordance; driving axle; hole; axle
Prior art date: 1999-02-26
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

EP00660035A

Other languages

German (de)

English (en)

Other versions

EP1031296B1 (fr

EP1031296A3 (fr

Inventor

Jari Sivonen

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.)

1999-02-26

Filing date

2000-02-28

Publication date

2000-08-30

1999-02-26 Priority claimed from FI990416A external-priority patent/FI108839B/fi

2000-02-28 Application filed by Individual filed Critical Individual

2000-08-30 Publication of EP1031296A2 publication Critical patent/EP1031296A2/fr

2001-01-17 Publication of EP1031296A3 publication Critical patent/EP1031296A3/fr

2004-09-29 Application granted granted Critical

2004-09-29 Publication of EP1031296B1 publication Critical patent/EP1031296B1/fr

2020-02-28 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B13/00—Brushes with driven brush bodies or carriers
- A46B13/001—Cylindrical or annular brush bodies

Definitions

the present invention relates to a brush mechanism designed especially for cleaning the inside of air-conditioning ducts, said brush mechanism comprising a brush and flexible driving axle for rotating the brush, the casing of said flexible driving axle containing an axle which has been designed to rotate the brush.
Cleaning mechanisms/brush mechanisms are used for cleaning air-conditioning ducts. They are pushed into and moved inside the air-conditioning duct in order to clean it.
the center part of brushes used in cleaning mechanisms are made of wire formed in the shape of a helix, in between the spirals of which the bristles are secured.
the structure of these brushes is similar to the structure of the common bottle brushes found in households. Both ends of the metal helix of the brush extend clearly beyond the brush.
the brush is connected to a special long, inflexible hexagonal sleeve, each side of which is 17 mm across in width.
the sleeve has a hole inside it, in one end of which the axle, which is inside of and which rotates the driving axle, is attached, and in the other end of which the brush is attached to the helix which is inside the sleeve hole.
the iron wire axle in the center of the brush is easily bent in the curvatures of the ducts, whereupon dirt is left in the ducts and the iron wire can damage the rust protection in the piping.
a further disadvantage is that the brush is on the front end of the driving axle, and thus forms a long and rigid part, which further hinders the movement of the brush through the ducts.
the point where the end of the brush meets the end of the driving axle forms a weak point which is easily damaged.
the entire end of the mechanism would have to be dismantled. The need for shortening the axle arises when elongation occurs while the axle is being used.
the object of the invention is to provide a brush mechanism, by which the disadvantages associated with the present brush devices will be eliminated.
the object of the invention is to provide a brush mechanism, which moves smoothly around the curves in air-conditioning ducts, and which is durable, easy to service, and long-lasting.
the brush at least partially overlaps the casing of the driving axle.
the brush mechanism is mainly intended to be used for cleaning small air-conditioning ducts.
the mechanism is comprised of a flexible driving axle, which is covered by a static casing, and inside of which is a rotating axle.
the casing is necessary for the flexible driving axle, because it prevents a breakage point from forming.
the axle is generally rotated from one end by a standard drill, whereupon the brush attached to the opposite end of the axle rotates.
the driving axle is manually pushed through the air-conditioning duct while the brush is rotating.
the length of the driving axle is not so great; the length may be, for example, 6 meters.
the mechanism is manually pulled out of the air-conditioning duct.
An advantage of the mechanism compared to those which are motorized is, that it only requires a driving axle, drill and brushes to clean, which makes carrying of the mechanism easy.
the mechanism is to be used primarily in one-family homes, row houses, apartment buildings and office buildings.
the brush moves smoothly around the curves in the air-conditioning ducts, and therefore easily.
the brush is durable in structure, easy to care for, and long-lasting. Changing brushes can be done easily and quickly.
the brush is evenly attached in the driving axle, because it at least partially overlaps the end of the driving axle, also decidedly improving the durability, because there is no weak joining point.
the head of the brush does not scratch the surface of the duct. Due to the elongation, the rotation axle inside the driving axle can be shortened easily and quickly.
the brush according to the invention has a releaser (projection) in its back corner, which causes the brush to jump if it gets stuck while it is being drawn out, thus the brush does not get stuck inside the duct.
the brush according to the invention can also be adapted to fit present cleaning mechanisms, whereby a large number of brushes is not necessary, because the new brush works with all mechanisms. Based on the preceding information, it is clear, that use of the invention will yield great economical savings.
the brush mechanism presented in Figures 1, 2, 3, and 4 has the following parts and points: a driving axle 1, which is comprised of the casing 1a, the axle 1b, the end with the brush 1c, the sleeve 1d, the bearing 1e, the outer sleeve 1f, and the clamp 1g. Additionally, there is the brush 2, which is comprised of the center part 2a, hole 2d, retainer 2c, stopper 2d, the smaller diameter 2e, and the bigger diameter 2f. Additionally, the figures illustrate the projection 3 and the blocking element 4.
FIGS 5 and 6 illustrate adapting piece 5, which is comprised of an inner hole 5a, outer surface 5b, retainer 5c and stopper 5d.
the brush 2 used in a brush mechanism formed in accordance with the figures is placed at least partially overlapping the casing la of the driving axle 1, or the brush 2 is placed entirely overlapping the casing 1a of the driving axle 1.
the brush 2 has a center part 2a which has a hole 2b in it. Additionally, the hole 2b contains a retainer 2c, which prevents the longitudinal movement of the brush's 2 driving axle 1 in at least one direction.
the retainer 2c is formed out of a stop which is inside the hole 2b.
the smaller diameter measurement 2e of the hole 2b is essentially smaller than the greater diameter measurement 2f of the hole 2b.
a stopper 2d is inside of the hole 2b.
the stopper 2d is a key slot.
the center part 2a of the brush 2 of the brush mechanism can be advantageously produced of plastic, some mixture thereof, or corresponding material.
the method of production and raw materials used are the same as those previously used in producing brushes.
the hole 2b, retainer 2c and stopper 2d can be worked, for example, with conventional metal and plastic-working machinery, or most advantageously, they can be manufactured, for example, in connection with the press casting of the center part 2a.
the center part 2a of the brush 2 has a projection 3, which is formed onto the center part 2a, from which it essentially extends outwards and is comprised of a peg which is attached to the center part 2a.
the projection 3 can be advantageously made out of a cylindrical metal peg, one end of which has been made with an external thread, and the other end of which can be rounded.
an internal thread is made in the outer shell of the center part 2a of the brush 2 near the end on the side with the driving axle 1, and advantageously so that when the projection 3 is screwed into place, it is at an angle to the driving axle 1.
the angular position causes the projection 3 to catch in the downward joining corners of the air-conditioning ducts, which causes the brush 2 to jump free.
the projection 3 can also be made of a nylon bar or a plastic cap can be put onto a metal peg, so that scratching of the air-conditioning ducts will not occur.
the projection 3 can also be attached with a conventional type of glue.
the outer sleeve 1f on the opposite end of the driving axle 1, has an external thread for the blocking element 4.
the retainer 5c used to prevent the longitudinal movement of the adapting piece 5 of the brush 2 in at least one direction, is on the outer surface 5b of the adapting piece 5.
This retainer 5c is a stop, which is formed from two different outside diameters, between which exists an intervening surface where the stop is formed.
the stopper 5d which restricts the free rotation of the brush 2, is located on the outer surface 5b of the adapting piece 5.
the outer sleeve 1f and the adapting piece 5 can be produced from conventional metals using conventional manufacturing techniques and machinery.
the stopper 5d of the adapting piece 5 can be made, for example, using a wedge key which can be glued in place.
a brush head formed in accordance with the invention is assembled in the following way.
the casing 1a is underneath the sleeve 1d, which is placed on the end of the driving axle 1 and through which the end of the axle 1b passes.
the bearing le is placed on the axle Ib, after which the outer sleeve if is placed against the bearing 1e.
the outer sleeve If is attached to the axle 1b in such a way that it cannot rotate using the clamp 1g.
the clamp 1g is an Allen screw.
the brush 2 is placed onto the outer sleeve if, such that the retainer 2c (stop) of the brush 2 comes against the stop of the sleeve if.
the blocking element 4 is turned onto the end of the outer sleeve 1f on the external thread, so that the brush 2 is locked in place.
the bearing le reduces the parallel stress exerted on the driving axle 1 and facilitates the rotation of the brush 2.
the blocking element 4 can be made using a conventional method, for example, out of plastic.
the blocking element 4 is unscrewed manually, the brush is pulled away and replaced with a new brush. After this, the blocking element 4 is screwed back on manually. The blocking element 4 does not become unscrewed because the brush 2 and the outer sleeve if rotate together as one, so that the blocking element 4 is not subject to the force of rotation.
a mechanism formed in accordance with the invention is used in the same way as other previous conventional air-conditioner duct cleaning brushes.

Landscapes

Cleaning In General (AREA)
Brushes (AREA)
Mechanical Treatment Of Semiconductor (AREA)
Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

EP00660035A 1999-02-26 2000-02-28 Dispositif de brossage Expired - Lifetime EP1031296B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FI990416A FI108839B (fi)	1999-02-17	1999-02-26	Harjan kiinnitysmenetelmä, harja, käyttöakseli ja sovitusosa
FI990416		1999-02-26

Publications (3)

Publication Number	Publication Date
EP1031296A2 true EP1031296A2 (fr)	2000-08-30
EP1031296A3 EP1031296A3 (fr)	2001-01-17
EP1031296B1 EP1031296B1 (fr)	2004-09-29

Family

ID=8553964

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP00660035A Expired - Lifetime EP1031296B1 (fr)	1999-02-26	2000-02-28	Dispositif de brossage

Country Status (3)

Country	Link
EP (1)	EP1031296B1 (fr)
AT (1)	ATE277543T1 (fr)
DE (1)	DE60014211T2 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1428408A (en) *	1921-11-30	1922-09-05	John A White	Quick-detachable coupling
FI834468L (fi) *	1983-12-07	1985-06-08	Vilho Ilmari Hinkkanen	Rensningsanordning foer ventilationskanaler.
US4792363A (en) *	1988-02-01	1988-12-20	Franklin Jr Smead P	Vent cleaning system
US5383243A (en) *	1992-11-27	1995-01-24	Thacker; Gregory	Duct brush
US5735016A (en) *	1994-10-21	1998-04-07	Clean-Aire International, Inc.	Duct cleaning apparatus
US5619767A (en) *	1995-10-16	1997-04-15	Larson; Mark C.	Targetable-action stationary pot-scrubbing machine

2000
- 2000-02-28 DE DE60014211T patent/DE60014211T2/de not_active Expired - Lifetime
- 2000-02-28 EP EP00660035A patent/EP1031296B1/fr not_active Expired - Lifetime
- 2000-02-28 AT AT00660035T patent/ATE277543T1/de not_active IP Right Cessation

Also Published As

Publication number	Publication date
DE60014211D1 (de)	2004-11-04
EP1031296B1 (fr)	2004-09-29
ATE277543T1 (de)	2004-10-15
EP1031296A3 (fr)	2001-01-17
DE60014211T2 (de)	2006-02-16

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