US3795024A - Brush having adjustable hardness - Google Patents

Brush having adjustable hardness Download PDF

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Publication number
US3795024A
US3795024A US00238496A US3795024DA US3795024A US 3795024 A US3795024 A US 3795024A US 00238496 A US00238496 A US 00238496A US 3795024D A US3795024D A US 3795024DA US 3795024 A US3795024 A US 3795024A
Authority
US
United States
Prior art keywords
bristle plate
brush according
brush
cover member
bristles
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
US00238496A
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English (en)
Inventor
G Weihrauch
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.)
Coronet Werke GmbH
Original Assignee
Coronet Werke 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 Coronet Werke GmbH filed Critical Coronet Werke GmbH
Application granted granted Critical
Publication of US3795024A publication Critical patent/US3795024A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/08—Supports or guides for bristles
    • A46B9/10—Adjustable supports
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H7/00—Devices for suction-kneading massage; Devices for massaging the skin by rubbing or brushing not otherwise provided for
    • A61H7/002—Devices for suction-kneading massage; Devices for massaging the skin by rubbing or brushing not otherwise provided for by rubbing or brushing
    • A61H7/003—Hand-held or hand-driven devices

Definitions

  • A46b 17/06, Ai6b 9/08 P Perforated disc member and a cover member [58] Field of searchum 15/159 160 168 169 176 located adjacent the bristleplate at opposite sides 15/184 186 187 188 thereof, means for adjusting the perforated disc mem- 401/75, g 2 her in position relative to the bristle plate, the adjusting means including an externally threaded pin and an [56] References Cited internally threaded hollow shaft substantially centrally located on one of the members, respectively, and UNITED STATES PATENTS threadedly engageable with one another through a 29 g substantially central opening formed in the bristle zln a 1,205,894 11/1916 Hilfiker 15/188 x plate 1,735,802 11/1929 Statuto 15/ 176 12 Claims, 8 Drawing Figures 4 rq Z/ /1 7 M Q 5 1 W 2 1 QJMULLW BRUSH HAVING ADJUSTABLE HARDNESS
  • the invention relates to
  • the purpose of producing a massage brush having adjustable hardness lies in the ability of the user thereof to change the effective length of the bristles as required.
  • the effect thereof is that the bristle length is changeable continously from short, hard bristles to long, soft bristles and, depending upon the parts of the skin to be treated, the brushing can be gentle or rough.
  • the adjustability in hardness of the effective bristle length gains importance as the service life of the bristle material increases. Only in view of the high quality of synthetic fibers is the additional cost of the adjusting mechanism worthwhile because the better brushing effect attained can be utilized over a longer period of time.
  • a brush such as a massage brush or similar brush, having adjustable hardness which avoids the foregoing disadvantage of heretofore known brushes of this-general type and which, moreover, has an adjusting mechanism of which only a few elements are accommodated in the brush housing.
  • a further object of the invention is to provide such a brush which affords an easy and convenient manual adjustment of the effective bristle length and, simultaneously, satisfactory locking at the selected bristle length.
  • a brush having adjustable hardness comprising a bristle plate, a perforated disc member and a cover member located adjacent the bristle plate at opposite sides thereof, means for adjusting the perforated disc member in position relative to the bristle plate, the adjusting means comprising an externally threaded pin and an internally threaded hollow shaft substantially centrally located on one of the members, respectively, and threadedly engageable with one another through a substantially central opening formed in the bristle plate.
  • the cover is provided with a web disposed transversely thereon and formed with recesses at both ends thereof and the handle is formed with two projections disposed respectively opposite to one another in longitudinal direction and received in the respective recesses.
  • a non-releasable connection between the cover and the bristle carrier comprising a collar formed at the outer wall of the hollow shaft, and a plurality of pins firmly secured to and extending from the bristles carrier, the pins having respective portions thereof radially inwardly bent substantially at right angles, the portions of the pins being snappable behind the collar.
  • three pins are disposed in spaced relationship about a circle coaxial to the threaded pin and guided in correspondingly disposed openings formed in the bristles carrier.
  • means for locking the perforated disc between the cover and the bristles carrier comprising a brake toothing formed of small teeth or a knurl located at mutually engaging surfaces of the cover and the bristles carrier.
  • means for limiting relative motion between the cover and the bristles carrier comprising a respective pin secured to and extending from the cover and the bristle carrier, respectively and disposed at equal radial distances, respectively, from the common center of rotation thereof, so as to be in abut ting engagement with one another after the cover and the bristles carrier have been turned at most one time relative to one another about the common center of rotation.
  • the ends of the bristles have a rounded shape to improve the massaging effect thereof.
  • the ends of the bristles define a zig-zag profile.
  • FIG. 1 is an exploded longitudinal sectional view of the massage brush of the invention
  • FIG. 2 is a side elevational view of the cover forming part of the inventive massage brush as viewed from the right-hand side of FIG. 1;
  • FIG. 3 is a front elevational view of the cover forming part of FIG. 1;
  • FIG. 4 is a longitudinal sectional view, partly diagrammatic, of the brush of FIG. 1 provided with snapon handle according to the invention
  • FIG. 5 is a bottom plan view of the snap-on handle of FIG. 4;
  • FIG. 6 is an enlarged diagrammatic fragmentary view of a detail of the brush enclosed in the circle D in FIG. 4, showing bristles with rounded ends;
  • FIG. 7 is a modified form of the massage brush wherein the bristles define a zig-zag outline
  • FIG. 8 is a bottom plan view of another embodiment of the invention showing the array of bristles studded on the brush and defining a zig-zag outline from two directions.
  • a massage brush according to the invention and having as main parts thereof, a cover 1, a bristles carrier 2 and a perforated disc 3.
  • the perforated disc 3 is provided with three pins 8, which are disposed on a circle concentric to the threaded post 6, and secured to the disc 3.
  • the pins 8 are guidable by the threaded post 6 into openings formed in the bristles carrier 2.
  • the perforated disc 3 is raised and lowered for adjusting the bristles 7 to a desired effective length s.
  • the raising and lowering of the perforated disc 3 is effected by a screw connection between a hollow shaft 5 formed at the underside of the cover 1 and provided with an internal thread, and the externally threaded post 6 which is centrally secured to the perforated disc 3 and is in threaded engagement with the hollow shaft 5.
  • a nondetachable connection of all three main parts I, 2 and 3 of the brush of the invention is obtained by providing four pins 13, which are mounted or formed on the bristles carrier 2, with portions thereof bent inwardly at right angles, by which the pins 13 snap in behind a collar 12 which is formed on the outer wall surface of the hollow shaft 5.
  • the perforated disc 3 is arrested to a given extent in a selected position by the intermeshing of small teeth 14 and 15 formed on the periphery of the cover 1 and the bristles plate or carrier 2.
  • a limit to the rotation of the cover 1 is effected by pins 10 and 11 which extend, respectively, from the bristles carrier 2 and the cover 1.
  • FIGS. 2, 3 and 4 The construction of the cover 1 for the attachment of a handle 17 is seen in FIGS. 2, 3 and 4.
  • a web 4 which is raised above the surface of the cover is formed with recesses 16 at both ends thereof.
  • an enlargement of the Web 4 is formed which provides a good finger grip for turning the cover 1.
  • the basic form of the handle 17 is constructed according to FIGS. 4 and 5, as a hollow U- shaped profile which matches the dimensionsfo the web 4.
  • snap-in elements are provided which are bent away at right angles from the central web 21 and form cam projections 18 and 19, the projections 19 at the handle side being formed at a resilient strap 20 which is of narrow construction as compared to the central web 21.
  • FIG. 6 is an enlarged fragmentary view of FIG. 4 showing a bundle of bristles with rounded bristle ends 7
  • a particular embodiment of a massage brush shown in FIG. 7 has bristles that are provided with a so-called zig-zag cut 22.
  • the bristle ends of an array of bristles provided with a zig-zag cut 22 can also be rounded.
  • a usable massage brush whose bristles can conveniently be adjusted in hardness and can be locked effectively so as to maintain that selected hardness, is producible with few individual parts such as a cover, a bristles carrier, a perforated disc and an optimal handle, each of which may be formed of injectionmolded integral members and are therefore not subjected to the danger of corrosion when used in water.
  • a further advantage of the invention of thisapplication is that by providing a web at the cover, good manipulation or handling for turning as well as a good possibility for clamping the cover in a positive forcelocking and form-locking manner by means of a handle are afforded.
  • Brush having adjustable hardness comprising a bristle plate, a perforated disc member and a cover member located adjacent said bristle plate at opposite sides thereof, said perforated disc member and said cover member being formed with mutually cooperating means for adjusting said perforated disc member in position relative to said bristle plate, said adjusting means comprising an externally threaded pin and an internally threaded hollow shaft integral with and substantially centrally located on and extending from one of said members, respectively, and threadedly engageable with one another through a substantially central opening formed in said bristle plate.
  • Brush according to claim 1 including a web disposed transversely on said brush and formed with recesses at both ends thereof.
  • Brush according to claim 2 including a handle formed with two projections disposed respectively opposite to one another in longitudinal direction of the handle and receivable in the respective recesses formed in said web.
  • Brush according to claim 1 including a nonreleasable connection between said cover and said bristle plate comprising a collar formed at the outer surface of said hollow shaft, and a plurality of pins firmly secured to and extending from said bristle plate, said pins having respective portions thereof, radially inwardly bent substantially at right angles, said portions of said p'ins being snappable behind said collar.
  • Brush according to claim 1 including three additional pins disposed in spaced relationship about a circle coaxial to said threaded pin and guided in correspondingly disposed openings formed in said bristle plate.
  • Brush according to claim 1 including brake toothing located between said cover member and said bristle plate.
  • said brake toothing is formed of a knurl located at mutually engaging surfaces of said cover member and said bristle plate.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dermatology (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Brushes (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
US00238496A 1971-03-25 1972-03-27 Brush having adjustable hardness Expired - Lifetime US3795024A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2114533A DE2114533C2 (de) 1971-03-25 1971-03-25 Härteverstellbare Massagebürste

Publications (1)

Publication Number Publication Date
US3795024A true US3795024A (en) 1974-03-05

Family

ID=5802757

Family Applications (1)

Application Number Title Priority Date Filing Date
US00238496A Expired - Lifetime US3795024A (en) 1971-03-25 1972-03-27 Brush having adjustable hardness

Country Status (8)

Country Link
US (1) US3795024A (it)
AT (1) AT316734B (it)
CH (1) CH529530A (it)
DE (1) DE2114533C2 (it)
FR (1) FR2131566A5 (it)
GB (1) GB1344034A (it)
IT (1) IT953540B (it)
SE (1) SE382558B (it)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3869748A (en) * 1972-12-28 1975-03-11 Kurt Krusche Brush with rotatable brush plate
US5224763A (en) * 1991-12-30 1993-07-06 The Procter & Gamble Company Method of fastening bristle tufts to bristle carrier
US6374448B2 (en) * 1998-10-13 2002-04-23 M+C Schiffer Gmbh Toothbrush
US6547750B2 (en) * 2001-04-09 2003-04-15 Chu Chua Huang Massage device
US20030079595A1 (en) * 2001-10-27 2003-05-01 Shahram Shariff Feed grip for a food slicer
WO2003037243A1 (fr) * 2001-09-05 2003-05-08 Serge Viaene Dispositif de lavage et massage du corps humain
US6606756B2 (en) * 2001-05-10 2003-08-19 Products Of Tomorrow, Inc. Broom with variable stiffness bristles and bristle cleaning device
EP1782712A1 (en) 2005-11-04 2007-05-09 Rayen S.L. Adjustable broom
WO2016019460A1 (en) * 2014-08-04 2016-02-11 Walter Surface Technologies Inc. Device for cleaning welds
USD913702S1 (en) 2019-09-16 2021-03-23 Scrub Daddy, Inc. Adjustable strength cleaning stick

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19538569A1 (de) * 1995-10-17 1997-04-24 Coronet Werke Gmbh Borstenware mit verstellbarer Borstenhärte
GB2454706A (en) * 2007-11-16 2009-05-20 Cheng-Lang Lin Pet brush with adjustable bristle length
CN108497688B (zh) * 2018-04-09 2021-01-12 倪江亚 一种运动刷毛牙刷
CN113560974B (zh) * 2021-04-27 2022-08-26 广州市机电高级技工学校（广州市机电技师学院、广州市机电高级职业技术培训学院） 机械加工用去毛刺装置

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US205374A (en) * 1878-06-25 Improvement in horse-brushes
US998328A (en) * 1910-08-13 1911-07-18 Charles Czinjak Massage implement.
GB191517421A (en) * 1915-12-13 1916-02-24 Thomas Fairley Improvements in Buttons.
US1205894A (en) * 1911-04-07 1916-11-21 F O Hilfiker Co Toilet implement.
US1735802A (en) * 1928-11-15 1929-11-12 Statuto Rocco Brush
US2854684A (en) * 1954-11-04 1958-10-07 H V Hardman Company Inc Plastic brush
CH337349A (fr) * 1956-02-09 1959-03-31 Manuf De L Eclair Schnell Pere Bouton
DE1229982B (de) * 1964-02-04 1966-12-08 Eric Dent Kleiderbuerste
US3612705A (en) * 1969-09-03 1971-10-12 Gillette Co Dispensing container
US3678529A (en) * 1970-07-06 1972-07-25 John A Woods Adjustable brush

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US205374A (en) * 1878-06-25 Improvement in horse-brushes
US998328A (en) * 1910-08-13 1911-07-18 Charles Czinjak Massage implement.
US1205894A (en) * 1911-04-07 1916-11-21 F O Hilfiker Co Toilet implement.
GB191517421A (en) * 1915-12-13 1916-02-24 Thomas Fairley Improvements in Buttons.
US1735802A (en) * 1928-11-15 1929-11-12 Statuto Rocco Brush
US2854684A (en) * 1954-11-04 1958-10-07 H V Hardman Company Inc Plastic brush
CH337349A (fr) * 1956-02-09 1959-03-31 Manuf De L Eclair Schnell Pere Bouton
DE1229982B (de) * 1964-02-04 1966-12-08 Eric Dent Kleiderbuerste
US3612705A (en) * 1969-09-03 1971-10-12 Gillette Co Dispensing container
US3678529A (en) * 1970-07-06 1972-07-25 John A Woods Adjustable brush

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3869748A (en) * 1972-12-28 1975-03-11 Kurt Krusche Brush with rotatable brush plate
US5224763A (en) * 1991-12-30 1993-07-06 The Procter & Gamble Company Method of fastening bristle tufts to bristle carrier
US6374448B2 (en) * 1998-10-13 2002-04-23 M+C Schiffer Gmbh Toothbrush
US6547750B2 (en) * 2001-04-09 2003-04-15 Chu Chua Huang Massage device
US6606756B2 (en) * 2001-05-10 2003-08-19 Products Of Tomorrow, Inc. Broom with variable stiffness bristles and bristle cleaning device
WO2003037243A1 (fr) * 2001-09-05 2003-05-08 Serge Viaene Dispositif de lavage et massage du corps humain
US20030079595A1 (en) * 2001-10-27 2003-05-01 Shahram Shariff Feed grip for a food slicer
EP1782712A1 (en) 2005-11-04 2007-05-09 Rayen S.L. Adjustable broom
WO2016019460A1 (en) * 2014-08-04 2016-02-11 Walter Surface Technologies Inc. Device for cleaning welds
US10518352B2 (en) 2014-08-04 2019-12-31 Walter Surfaces Technologies Inc. Device for cleaning welds
USD913702S1 (en) 2019-09-16 2021-03-23 Scrub Daddy, Inc. Adjustable strength cleaning stick

Also Published As

Publication number Publication date
DE2114533A1 (de) 1972-06-08
FR2131566A5 (it) 1972-11-10
DE2114533C2 (de) 1973-01-04
IT953540B (it) 1973-08-10
CH529530A (de) 1972-10-31
GB1344034A (en) 1974-01-16
SE382558B (sv) 1976-02-09
AT316734B (de) 1974-07-25

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