US3473224A - Vibrators for condensing tooth fillings - Google Patents

Vibrators for condensing tooth fillings Download PDF

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Publication number
US3473224A
US3473224A US548906A US3473224DA US3473224A US 3473224 A US3473224 A US 3473224A US 548906 A US548906 A US 548906A US 3473224D A US3473224D A US 3473224DA US 3473224 A US3473224 A US 3473224A
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United States
Prior art keywords
plunger
cylinder
holder
working piece
condensing
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Expired - Lifetime
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US548906A
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English (en)
Inventor
Gunnar Bergendal
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Individual
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Individual
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C3/00—Dental tools or instruments
    • A61C3/08—Tooth pluggers or hammers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
    • A61C1/02—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design characterised by the drive of the dental tools
    • A61C1/07—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design characterised by the drive of the dental tools with vibratory drive, e.g. ultrasonic

Definitions

  • the vibrator device includes a cylinder defining an annular groove with a member having a portion slideably received in said groove and a holder body including a workpiece slideably received through a bore in said member.
  • the device further includes means for driving said workpiece in a first direction and for driving said member and thereby said workpiece in a direction lateral to said first direction.
  • FIGS. 1, 2 and 3 A usual well-known type of such vibrators is diagrammatically illustrated in the accompanying drawings, in FIGS. 1, 2 and 3, wherein FIG. 1 is a side view of the front portion of the vibrator, in part in a longitudinal central section through the head proper, FIG. 2 is a crosssection on a greater scale along the line IIII in FIG. 1, and FIG. 3 is a cross-section similar to FIG. 2, but with certain movable parts in a different position.
  • said well-known vibrator comprises a shank serving as a handle--a socalled angular handpiece 1 which contains a rotatable driving shaft 2 and is provided with a head in the form of a cylinder 3 for a plunger 4 which is movable transversely to the driving shaft and is operated by a camming body 5 on the end of the driving shaft for performing blows on a body 6 serving as a holder for a working piece 7, said holder being movable within certain limits in the cylinder, and said working piece being made as a plugging member for the amalgam filling and being attached in the holder by forcing the same into an axial hole in the body of the holder.
  • a slidable lock member 8 with a bail-shaped end is provided.
  • the plunger 4 is made as a sleeve having a bottom 4a between the ends of the sleeve, said bottom being actuated upon by the camming body 5 of the driving shaft. The blows of the plunger are transferred to the holder 6 over the sleeve-shaped end of the plunger.
  • the holder 6 is made as a conical sleeve with a disc-shaped flange, but it also can be made as a so-called base plate (substantially according to the Swedish Patent 128,530 or the corresponding United States Patent 2,488,846, British Patent 613,672, French Patent 929,938, and Swiss Patent 51,530), but in any case the holder, when the working piece 7 is subjected to lateral loads, that is during vibration in the lateral direction, will occupy an inclined position in the space between the bottom flange 3a of the cylinder 3 and the plunger 4 when the plunger 4 pushed upwards, as shown in FIG. 3.
  • the object of this invention is to create a vibrator of the type indicated above, in which the working piece cannot occupy an inclined position when subject to lateral loads, a vibration in lateral direction still being possible.
  • FIGS. 4, 5 and 6 of the accompanying drawings in which:
  • FIG. 4 is a cross-section through the head of the vibrator according to said embodiment, with the plunger in its lower position;
  • FIG. 5 is a corresponding cross-section with the plunger in its upper position
  • FIG. 6 is a similar cross-section with the plunger in its upper position but the working piece laterally displaced.
  • FIGS. 4, 5 and 6, the reference numerals 2, 3, 3a, 5, 7 indicate the same parts as in FIGS. 2 and 3, whereas 4' indicates the sleeveshaped and thin-wall plunger 4'a is the intermediate bottom of the same, and 6' is the holder for the working piece 7.
  • a bush 10 is securely mounted so as to constitute a part of the cylinder 3, the plunger 4' being slidable in said bush.
  • the bush 10 does not extend to the bottom flange 3a of the cylinder 3 but forms a space therebetween, viz an annular groove 31) in the inside of the cylinder wall.
  • this groove 3b a disc 11 is guided for radial sliding movement, always at right angles to the axis of the cylinder 3.
  • the central portion of the disc 11 is thicker than the remaining portion of the disc and preferably said central portion constitutes a sleeve-shaped lug 11a which emerges into the disc 11 through a conical portion 11b.
  • the holder 6 is made as a cylindrical sleeve and is axially slidable in a corresponding hole in the disc 11 and the lug 11a.
  • the unit consisting of the portions 11, 11a, 11b is slidable in the radial direction but is not slidable in the axial direction, nor can it be tilted.
  • the holder 6' is slidable in the axial direction but because of its mounting in the unit 11, 11a, 11b it is also slidable in the radial direction without being tiltable.
  • the sleeve-shaped holder 6 is closed at the end adjacent to the transverse wall or intermediate bottom 4"a of the plunger 4, and this closed end constitutes a flangeshaped head 6a which during axial loads transfers striking movements from the central portion of the intermediate bottom 4'a of the plunger to the holder 6' and the working piece 7 and also limits the axial movements of the holder 6.
  • the plunger 4 is provided with a lower sleeve portion beneath said transverse wall 4'a so as to have its lower sleeve-shaped edge 4b cooperating with the frusto-conical portion 11b of the thicker central portion of the disc 11 such that the disc 11 during lateral loads on the working piece 7 is returned to a central position under the influence of a working stroke of the plunger 4' and forming cooperative means 4'! and 11b for selectively transferring a force having a lateral component from plunger 4' to said disc member 11 and thereby to holder 6' and working piece 7.
  • the unit 11, 11a, 11b with the holder body 6' and the working piece 7 will vibrate laterally under the influence of the blows efiected by the sleeve edge 4b of the plunger 4' against the conical portion 1112, no tilting movement of the working piece 7 being possible.
  • the unit 11, 11a, 1112 has both a guiding action and a vibration-transfer action.
  • the holder 6' can consist of a self-lubricating material for facilitating the sliding movement of the same up and down.
  • the bush 10 can be made of a selflubricating material. The provision of the bush 10 has especially the advantage that it allows the formation of the annular groove 3b in a simple way.
  • the bush 10 also renders it possible to mount the device in the head 3 of a vibrator handpiece of already occurring design and dimensions, such as according to FIGS. 1, 2 and 3, so that the pressing tools for the production of vibrator heads must not be changed.
  • a vibrator device for condensing tooth fillings of amalgam or the like comprising;
  • a holder body including a workpiece for striking the filling of a tooth, said holder body being slideably received through said bore in said member
  • said plunger is comprised of a sleeve element having a transverse wall, said wall being in striking engagement with said force imparting means, and wherein said cooperative means for lateral force transfer includes an inwardly tapering frustoconical portion of said member and the outer end of the sleeve element, said member being received in said sleeve element on the side of said wall opposite said force imparting means with the end of said sleeve disposed radially of said conical portion and spaced from said conical portion by a distance whereby when the member is centrally located in the cylinder, the wall of the plunger will repeatedly strike the holder body to impart an axially directed vibratory force to the workpiece but when the body member is radially offset from said central position. the end of said sleeve will strike said frusto-conical portion to impart a lateral force to said workpiece.
  • annular groove in said cylinder is defined by an outer flange on said cylinder and the end edge of a bush, said bush being mounted in the cylinder between the cylinder wall and the plunger.
  • said force imparting means is comprised of a rotatable shaft rotatably mounted in said device, and an eccentric body carried by said shaft, said body being in striking engagement with said plunger.

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  • 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)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
US548906A 1965-05-20 1966-05-10 Vibrators for condensing tooth fillings Expired - Lifetime US3473224A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE6607/65A SE302657B (enrdf_load_stackoverflow) 1965-05-20 1965-05-20

Publications (1)

Publication Number Publication Date
US3473224A true US3473224A (en) 1969-10-21

Family

ID=20269136

Family Applications (1)

Application Number Title Priority Date Filing Date
US548906A Expired - Lifetime US3473224A (en) 1965-05-20 1966-05-10 Vibrators for condensing tooth fillings

Country Status (5)

Country Link
US (1) US3473224A (enrdf_load_stackoverflow)
CH (1) CH449845A (enrdf_load_stackoverflow)
DE (1) DE1541193B1 (enrdf_load_stackoverflow)
GB (1) GB1083682A (enrdf_load_stackoverflow)
SE (1) SE302657B (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2557468A1 (de) * 1974-12-27 1976-07-08 Mul E F J D Zahnaerztliches instrument
EP1224913A3 (de) * 2001-01-23 2003-06-25 Kaltenbach & Voigt GmbH & Co. KG Maschineller Impulsgeber für dentalmedizinische oder medizinische Zwecke
US9173719B2 (en) 2013-11-08 2015-11-03 Beak And Bumper, Llc Force applying attachment, kit and method for pre-loosening a tooth in order to facilitate removal thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63183051A (ja) * 1987-01-26 1988-07-28 高津　寿夫 歯科用粘着性成形材料のための超音波振動応用填塞付形方法
US20140199008A1 (en) * 2013-01-14 2014-07-17 Regal Beloit America, Inc. Sleeve bearing device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1641031A (en) * 1926-08-06 1927-08-30 Gaillard Madison Wilson Automatic chisel hammer
US2488846A (en) * 1944-03-03 1949-11-22 Bergendal Gunnar Dental implement

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1641031A (en) * 1926-08-06 1927-08-30 Gaillard Madison Wilson Automatic chisel hammer
US2488846A (en) * 1944-03-03 1949-11-22 Bergendal Gunnar Dental implement

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2557468A1 (de) * 1974-12-27 1976-07-08 Mul E F J D Zahnaerztliches instrument
EP1224913A3 (de) * 2001-01-23 2003-06-25 Kaltenbach & Voigt GmbH & Co. KG Maschineller Impulsgeber für dentalmedizinische oder medizinische Zwecke
US9173719B2 (en) 2013-11-08 2015-11-03 Beak And Bumper, Llc Force applying attachment, kit and method for pre-loosening a tooth in order to facilitate removal thereof

Also Published As

Publication number Publication date
CH449845A (de) 1968-01-15
SE302657B (enrdf_load_stackoverflow) 1968-07-29
DE1541193B1 (de) 1970-03-26
GB1083682A (en) 1967-09-20

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