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WO1985003632A1 - Dispositif de soins hygieniques - Google Patents

Dispositif de soins hygieniques Download PDF

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Publication number
WO1985003632A1
WO1985003632A1 PCT/US1984/000210 US8400210W WO8503632A1 WO 1985003632 A1 WO1985003632 A1 WO 1985003632A1 US 8400210 W US8400210 W US 8400210W WO 8503632 A1 WO8503632 A1 WO 8503632A1
Authority
WO
WIPO (PCT)
Prior art keywords
attachment
axis
driven
operative end
engaging
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.)
Ceased
Application number
PCT/US1984/000210
Other languages
English (en)
Inventor
John B. Fattaleh
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to PCT/US1984/000210 priority Critical patent/WO1985003632A1/fr
Priority to EP19840901048 priority patent/EP0173679A1/fr
Publication of WO1985003632A1 publication Critical patent/WO1985003632A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/005—Devices for dental prophylaxis

Definitions

  • Size and shape of the device are primary considera ⁇ tions since the operative end must be capable of manipulation throughout the mouth in order to contact the exposed surfaces of the teeth.
  • dental care devices require that the portion containing the particular appliance for the task at hand be angled with respect to the axis of the main body of the device in order to insure that the appliance effective ⁇ ly contacts the multiple faces of the teeth.
  • the need for slim line, hand-held per ⁇ sonal health care devices has generated a family of products capable of providing a cleansing and polishing effect and which is intentionally made small for insertion into the oral cavity and angled from the body of the device to facilitate hand mani ⁇ pulation by the individual unskilled user.
  • One such device is a family of products capable of providing a cleansing and polishing effect and which is intentionally made small for insertion into the oral cavity and angled from the body of the device to facilitate hand mani ⁇ pulation by the individual unskilled user.
  • the hand-held device typically utilizes an electric motor connected to either an internal or external power supply with a rotating shaft extending axially within the housing.
  • an electric motor connected to either an internal or external power supply with a rotating shaft extending axially within the housing.
  • the operating conditions are not controlled by professionally-trained staff and the varying pressures applied by the user often lead to undue heat generation at the tooth surface, internal belt slippage and a frequent need to replace the belting.
  • the present invention is directed to a personal health care device for use by individuals wherein the small cross-sectional area of the operating end includes an oscillatory drive mechanism.
  • the appliance is located proximate to the small end region of an angled oper ⁇ ating end to facilitate manipulation by the user.
  • the oscillating drive mechanism provides a positive direct linking between the internal drive and driven means to sub ⁇ stantially eliminate internal slippage and reduce the need for the replacement of parts therein.
  • the present invention relates to a personal health care device for use by individuals without the direct super ⁇ vision or control of professional staff.
  • the device is es ⁇ pecially well-suited for use in polishing and cleaning the exposed surfaces of teeth.
  • the device includes a containment means for housing a drive mechanism and has an operative end of small cross- sectional area and a hand-grippable body portion.
  • the opera ⁇ tive end is constructed so that at least a portion thereof is angled with respect to the axis of the body for enhancing the efficacy of the device.
  • a power drive means is mounted within the contain ⁇ ment means and either an external electrical connection can be provided or rechargeable battery operation can be utilized. The nature of the power supply can be selected by the type of usage expected.
  • the power drive means includes an output shaft which rotates upon actuation of suitable control means and extends substantially axially along the body portion of the containment means.
  • a drive means is mounted for rotation about a first axis within the operating end and is operatively coupled to the output shaft.
  • the operative end includes driven means mount ⁇ ed therein for rotation about a second axis.
  • the driven means has-an engaging means affixed thereto which extends outwardly of the operative end for removably receiving an appliance thereon.
  • a non-planar connection means is coupled to both the drive and the driven means to permit incorporation within the angled operative end.
  • the connection means is coupled to impart oscillatory motion to the driven means. This is accomplished by coupling one end of the connection means to the drive means a first distance from the first axis while coupling the opposing end to the driven means a second distance from the second axis. The first distance is less than the second distance so that a 360 degree rotation of the
  • the engaging means affixed to the driven means is therefore provided with an oscillatory movement.
  • the engaging means which extends outwardly of the operative end via a suit ⁇ able bushing is provided with an expanded diameter end for removably receiving an appliance, typically a conventional cleansing-polishing cup with a ribbed external cavity for receiving paste material to be applied to the surfaces of the teeth.
  • Fig. 1 is a view in perspective of one embodiment of the invention.
  • Fig. 2 is a side view of the embodiment of Fig. 1.
  • Fig. 3 is a top view in section taken along line 3-3 of Fig. 2.
  • Fig. 4 is a side view in section taken along line 4-4 of Fig. 3.
  • Fig. 5 is a side view in section similar to Fig. 4 of another embodiment of the invention.
  • a personal health care device 10 including contain ⁇ ment means 11 having a hand-grippable body portion 12 with external switch button 23 and an operating end 14 of reduced cross-sectional area.
  • the opposing end of containment means 11 is provided with external electrical connection 15 having a flexible waterproof reinforcing section 16 provided adjacent the containment means.
  • the external a-c connection may be replaced by internal battery means as the power supply with conventional recharging receptacles provided for the external connection.
  • the containment means is formed in upper and lower sections as indicated by parting line 18 in order to permit assembly and testing prior to forming the sealed unit. 'This feature provides distinct manufacturing advantages.
  • a region 22 of sub ⁇ stantially reduced cross-sectional area is angularly displaced in an upward direction from the longitudinal axis of the body portion 12.
  • This orientation of the portion of the device placed within the oral cavity of the user facilitates the mani ⁇ pulation of the device by the user to permit the contact of appliance 20 with the variously oriented surfaces of the teeth.
  • the combination of small cross-sectional area and angular dis ⁇ placement in the operative end have heretofore tended to limit the types of drive mechanisms available for use therein while favoring the use of flexible belt drives and their 360 degree rotational drive of the tip-mounted accessory 20.
  • the present invention utilizes a novel drive assembly which is readily accommodated in this type of containment means and provides a different drive motion for the accessory 20.
  • the accessory 20 is generally a flexible cup con ⁇ taining internal ribs or vanes within the cup.
  • a cleansing-polishing agent is added to the cup and the cup is placed in contact with the surface of the teeth.
  • the 360 degree rotation of such accessories has placed the burden on the user to actuate the device after it is with ⁇ in the oral cavity to prevent the agent from being sprayed about. This result has tended to reduce consumer acceptance of devices of this type.
  • the present invention providing an oscillatory motion of the accessory 20 does not generate this undesirable result nor does it create the heat of a continual ⁇ ly rotating head which often leads to user discomfort.
  • the drive mechanism is shown in detail in the partial sectional view of Fig. 3 wherein the upper section of contain ⁇ ment means 11 is removed to provide a view of the interior of the operating end 14.
  • the power drive module 36 typically a d-c electrical motor, has an output shaft 25 which axially extends into the operating end and is provided with support plate 26 having circular gear 27 affixed thereto. The actua ⁇ tion of the power drive module results in the rotation of gear 27.
  • the power drive module 36 is provided as shown with internal threads for receiving the external threads 35 of the operating end.
  • the ability to use the power drive module with other operating ends for multiple user capability is present.
  • the operating end and the power drive module can be made integral if desired.
  • the extension of the drive shaft 25 into the operating end is preferred, however the power drive module can incorporate the entire output shaft and circular gear 27 if desired.
  • the drive means in the operative end in ⁇ cludes the gear 28 centrally mounted on a substantially verti ⁇ cal axis and having upstanding gear teeth which mesh with the teeth of circular gear 27. Consequently, the rotational drive from the power module is translated through an angle of ninety degrees.
  • Horizontal gear 28 is provided with a raised central portion 29 upon which one end 32 of the connecting link 30 is movably mounted for rotation in a horizontal plane. The end 32 is mounted on the raised portion 29 at a point spaced from the vertical rotational axis on gear 28.
  • the end of the connecting link moves about a circular path having a radius equal to the dis ⁇ tance between the mounting and the axis of rotation of gear 28.
  • Driven means 34 is shown as a disc and is mounted for rotation about a central off-vertical axis, shown more clearly in Fig. 4.
  • the opposing end 33 of the connecting link 30 is rotatably attached at the upper surface of driven means 34 at a distance from the axis of rotation thereof. This distance is greater than the spacing of end 32 from the axis of rotation of gear 28 so that one revolution of gear 28 results in end 33 and driven means 34 transversing an arc of less than 180 degrees.
  • the ratio of the distances for the ends 32 and 33 of link 30 is made such that the driven disc 34 traverses and arc of about 120 degrees.
  • One revolution of gear 28 provides two traverses of the arcuate path or one oscillatory cycle for the disc 34. •
  • gear 27 on the output shaft is shown meshing with gear 28 mounted for rotation about a vertical axis defined by shaft 40.
  • the shaft 40 is normally press fit into a mounting sleeve 41 bonded to or molded in the under ⁇ side of the operating end 14.
  • the gear 28 contains an integral raised central portion at the top of which is rotatably pinned the end 32 of connecting link 30. Pin 39 is shown offset from the vertical axis of gear 28 as defined by shaft 40.
  • connecting link 30 is mov- ably coupled to the top surface of driven disc 34 by pin 44.
  • the coupling pin is spaced from the axis of movement of the disc as defined by shaft 42- by a distance greater than the offset spacing of end 32.
  • the rigid connecting link is non-planar with the opposing ends essentially perpendicular to the axes of rotation of the drive gear and driven disc. The axes are non-parallel due to the angular displacement of region 22.
  • the portion of the connect ⁇ ing link between the opposing ends is shown comprised of two non-planar segments oriented to provide the coupling for trans- ittal of the force. Other configurations of the central por ⁇ tion of the link may be utilized if desired.
  • the shaft 42 of the driven disc 34 is journalled in a split sleeve bearing 46 which is affixed to the perimet- rical surface of a hole formed in the underside of the operat ⁇ ing end.
  • the disc is preferably made integral with the engag ⁇ ing means for receiving the appliance 20 and is shown affixed to the end of shaft 42 which terminates at its outer end in expanded diameter portion 48.
  • the flexible accessory is urged onto the engaging means by forcing its receiving end over portion 48.
  • shaft 42 has an intermediate section 49 of large diameter serving as a thrust plate with a concave peri ⁇ pheral surface. Adjacent section 49 is the bearing 46 for shaft 42 so that axial movement of the driven disc and the engaging means is limited.
  • a housing 47 for bearing 46 is placed over the engaging means and moved upwardly to be fasten ⁇ ed to both the outer surfaces of the operating end and the bearing 46.
  • the housing 47 is shown having a centrally located concave peripheral portion.
  • the cylindrical sleeve 21 formed of a water imper ⁇ meable material serves as a water-tight boot that prevents the
  • the boot can be independently replac ⁇ ed by removing the appliance 20 and sliding the new sleeve over the concave portion 49 of the engaging means onto the housing 47 and its concave portions.
  • the nature of the oscil ⁇ latory motion of the shaft 42 permits the use of a tight flexi ⁇ ble sleeve to cover bearing joints as contrasted with the ex ⁇ posed joints found in fully rotational equipment.
  • a longitudinally divided containment means permits the installation and testing of the components of the invention prior to sealing.
  • the mounting of the power drive means and the associated switch in the containment means can be selected by the manufacturer in accordance with the type of drive motor and power source favored. Reference to external connections in hand held appliances may be found in my U.S. Patent 3,921,298 issued November 25, 1975.
  • FIG. 5 A second embodiment of the invention is shown in Fig. 5 with like parts having the same reference numerals.
  • This embodiment utilizes a threaded split bearing 46' which is placed about shaft 42 and threaded into receiving housing 47' molded as a portion of the operating end. The insertion of the piece part takes place from the top prior to the affixa ⁇ tion of the top portion of the containment means.
  • a thrust plate 50 is located on the shaft 42 to limit axial movement.
  • the shaft terminates in an expanded diameter portion 48 which receives the appliance to be driven.
  • the connection of the driven disc to the drive gear is the same for each embodiment.
  • a flexible boot can be provided by the use of a right-angle sheath extending over the end and contacting the sides of the thrust plate 50.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Brushes (AREA)

Abstract

Dispositif de soins hygiéniques à main (10) pour le polissage des dents, où l'accessoire contenant l'agent de nettoyage (20) est entraîné par un mécanisme monté dans la partie de corps (12) avec un arbre d'entraînement monté de manière rotative autour d'un premier axe (40) à un certain angle par rapport à l'axe de l'arbre de sortie (25). L'arbre entraîné (34) est monté à l'extrémité d'ouverture pour une rotation autour d'un second axe (42) à un certain angle par rapport à l'axe de l'arbre de sortie (25). Une liaison allongée (30) est couplée à la fin du premier axe (40) et à un second axe (42) pour produire un mouvement oscillatoire.
PCT/US1984/000210 1984-02-16 1984-02-16 Dispositif de soins hygieniques Ceased WO1985003632A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/US1984/000210 WO1985003632A1 (fr) 1984-02-16 1984-02-16 Dispositif de soins hygieniques
EP19840901048 EP0173679A1 (fr) 1984-02-16 1984-02-16 Dispositif de soins hygieniques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1984/000210 WO1985003632A1 (fr) 1984-02-16 1984-02-16 Dispositif de soins hygieniques

Publications (1)

Publication Number Publication Date
WO1985003632A1 true WO1985003632A1 (fr) 1985-08-29

Family

ID=22182046

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1984/000210 Ceased WO1985003632A1 (fr) 1984-02-16 1984-02-16 Dispositif de soins hygieniques

Country Status (2)

Country Link
EP (1) EP0173679A1 (fr)
WO (1) WO1985003632A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2312623A (en) * 1996-05-03 1997-11-05 Braun Ag Dental treatment apparatus
WO1999005987A1 (fr) * 1997-07-31 1999-02-11 Anderson Michael R Dispositif permettant de blanchir les dents
DE4003305C2 (de) * 1990-02-03 2001-10-04 Petz Elektro Waerme Techn Elektrische Zahnbürste

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US149442A (en) * 1874-04-07 Improvement in dental burring - engines
US3195537A (en) * 1962-09-25 1965-07-20 John V Blasi Power driven tooth cleaner and gum stimulator
US3802420A (en) * 1972-06-26 1974-04-09 G Moffat Portable oral hygiene device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US149442A (en) * 1874-04-07 Improvement in dental burring - engines
US3195537A (en) * 1962-09-25 1965-07-20 John V Blasi Power driven tooth cleaner and gum stimulator
US3802420A (en) * 1972-06-26 1974-04-09 G Moffat Portable oral hygiene device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4003305C2 (de) * 1990-02-03 2001-10-04 Petz Elektro Waerme Techn Elektrische Zahnbürste
GB2312623A (en) * 1996-05-03 1997-11-05 Braun Ag Dental treatment apparatus
US5893715A (en) * 1996-05-03 1999-04-13 Braun Aktiengesellschaft Dental treatment apparatus
GB2312623B (en) * 1996-05-03 1999-11-10 Braun Ag Dental treatment apparatus
WO1999005987A1 (fr) * 1997-07-31 1999-02-11 Anderson Michael R Dispositif permettant de blanchir les dents

Also Published As

Publication number Publication date
EP0173679A1 (fr) 1986-03-12

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