US3418714A - Device for variable height positioning of treatment appliances on dental equipment - Google Patents

Device for variable height positioning of treatment appliances on dental equipment Download PDF

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Publication number
US3418714A
US3418714A US353776A US35377664A US3418714A US 3418714 A US3418714 A US 3418714A US 353776 A US353776 A US 353776A US 35377664 A US35377664 A US 35377664A US 3418714 A US3418714 A US 3418714A
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United States
Prior art keywords
cuspidor
chair
dental
support
bowl
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Expired - Lifetime
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US353776A
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English (en)
Inventor
Pietschmann Helmut
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Ritter Co Inc
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Ritter Co Inc
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Publication date
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Publication of US3418714A publication Critical patent/US3418714A/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
    • A61G15/14—Dental work stands; Accessories therefor
    • 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
    • A61C17/14—Dental appliances for receiving spittle, with or without rinsing means therefor, e.g. dental basins, spittoons, cuspidors

Definitions

  • a vertically adjustable cuspidor connected to a dental stand by an arm which includes a parallel motion linkage between pivots 7, 8, 11, and 12, and a lengthwise adjustable diagonal strut including a bar 10, tubes 19 and 21, shell 18 and spring 15.
  • the cuspidor can be vertically movable responsive to vertical movement of a dental chair 23 by means of a rod or lever 22 carried on the cuspidor and a fork 24 carried on the chair.
  • This invention relates to a device permitting the height adjustment of treatment appliances such as cuspidors with accessories, etc., on dental equipment, for example as on unit stands, operating chairs, pedestals and the like.
  • Another known appliance has solved the height adjustment of the cuspidor mounted on a unit stand by means of a hydraulic follow-up device connected to the operating chair. This has the effect that the cuspidor moves synchronously with the operating chair and is always in a good position relative to the patient.
  • considerable expense is involved because of the required hydraulic devices.
  • an angularly adjustable articulation parallelogram having a lengthwise adjustable spring loaded diagonal strut as a means for compensating the weight of the cuspidor bowl or treatment appliance and of the supporting arm, and is further characterized by devices for adjusting the spring load on the treatment appliance the weight of which is to be compensated or offset.
  • the supporting arm consists of an articulation parallelogram formed by two vertical sides and two angularly movable mainly horizontal connecting sides, one of the vertical sides being stationary and mounted on the supporting equipment, while the other, vertically adjustable side is formed by the support of the treatment appliance.
  • the corner points of the articulation parallelogram are formed by an upper horizontal bolt and a lower horizontal bolt bearing bolt each at the stationary vertical side and at the vertically adjustable side.
  • An arm having in cross sectional view the shape of a reversed U is pivotally mounted with its lengthened lateral U-studs on the upper horizontal bolts, thus forming the upper connecting side of the articulation parallelogram.
  • the lower connecting side is formed by a bar which is pivotally mounted on the lower horizontal bearing bolts, one part of the length of said bar being arranged in the diagonal line of the articulated parallelogram, while at the vertical adjustable end the bar is bent down almost at right angle.
  • the diagonal strut consists of two tubes, one of said tubes being provided with inside threads and the other with outside threads, and which are screwed together, whereby the inner tube provided with outside threads is supported on a hinge bolt at the support for the treatment appliance, while the outer tube provided with inside threads is held with its end or by means of a internal stop against a cylindrical coil forming pressure spring, said coil spring 'being held at the other end against a holding ring which is mounted to the bar.
  • the bar forming the lower connecting side of the articulation parallelogram is arranged concentrically in the longitudinal axis of the tubes and the coil spring.
  • the stationary vertical side of the articulation parallelogram is usefully developed as a bearing which is rotatable around a vertical axis of the equipment.
  • This newly developed device for the height adjustment of treatment appliances has the merit of being entirely mechanical. It permits not only manual height adjustment relative to the patient, such as by a chair-side assistant, but also synchronous movement with the operating chair by means of a swinging lever which is mounted on the support and catches into a fork attached to the operating chair, while said lever may be drawn out of the support and pushed back or may be swung in and out, at will.
  • the height adjustable support has been developed as cuspidor bowl support.
  • a console bracket for the cup and a cup filler may be directly attached to the bowl support.
  • the necessary water supply and waste lines for the cuspidor and eventually for the cup filler are enclosed within the supporting arm.
  • the dentist has suflicient freedom of movement and, if necessary, the cuspidor may be moved by fingertip into the best position relative to the patient and to the dentist.
  • FIG. 1 is a side view of a device for the height adjustment of a cuspidor with a covered supporting arm mounted on the unit stand;
  • FIG. 2 a side view of the same embodiment of our invention but with part of the cuspidor bowl and supporting arm cut away to illustrate the motion mechanism;
  • FIG. 3 a top view of the same
  • FIG. 4 a front view of a second embodiment of our invention with the height adjustable cuspidor mounted on a unit stand in accordance with FIG. 1, but with the difference that the cuspidor is interlocked with the operating chair;
  • FIG. 5 a side view of a third embodiment of our invention with the cuspidor according to FIGS. 2 and 3 mounted on a pedestal and provided with a console for supporting the cup and the cup filler.
  • the new height adjustable cuspidor 1 is provided with a condensation collector 1a and both rest on a support 2.
  • a supporting arm 3 in which an articulation parallelogram is incorporated height adjustably connects the cuspidor bowl support 2 with a horizontally movable arm support 6 on a unit stand 4 as shown in FIGS. 1 and 4 or on a pedestal 5 according to FIGS. 2, 3, and 5.
  • the articulation parallelogram consists of arms 9 which are mounted on the bowl support 2 by means of bolts 7 and movably mounted on the arm support 6 by means of pivot bolts 8.
  • a bar 10 whose one end is bent down Y almost at right angles and is movably mounted on a bearing bolt 11 at the cuspidor bowl support 2 and on a bearing bolt 12 at the arm support 6.
  • the bearing bolt 11 is mounted in a bearing block 13 fixed to the support 2, and the bearing bolt 12 is mounted in a bearing block 14 fixed to the arm support 6.
  • the bar 10 extends from the bearing bolt 12 in diagonal direction to bearing bolt 7 and is then bent down almost at right angles to the bearing bolt 11.
  • This articulation parallelobram is best illustrated in FIG. 1, in which the upper and lower side walls of the parallelog-ram are illustrated respectively by the centerlines 31 and 30.
  • the numerals having suffixes A illustrate an upwardly articulated position shown in broken line.
  • a cylindrical coil spring 15 is placed over the diagonally located part of the "bar 10, said coil spring 15 resting on a holding ring 17 in front of the bearing bolt 12 and, said holding ring 17 being rigidly connected with the bar 10 by means of a bolt 16.
  • the coil spring 15 is resting on the end of an outer tube 19 which is fixed in a shell 18.
  • the outer tube 19 is screwed over an inner tube 21 which is connected, angularly movable, to the bowl support 2 by means of pivot bolt 20.
  • Weight bears through bolt and the spring 15.
  • the tension of the coil spring 15 may be increased or decreased.
  • the tension of the coil spring 15 offers a resistance to the weight of the system formed by the cuspidor bowl 1, condensation collector 1a, and supporting arm 3, and may be so adjusted as to assure the equilibrium of said system in any position of the parts.
  • the newly developed device permits manual adjustment of the cuspidor bowl 1 to any desired height. But synchronous adjustment of the cuspidor mounted on the unit stand 4 is also possible, dependent on the movement of the operating chair 23, by means of a lever 22 which is rigidly mounted in horizontal position on the cuspidor support 2 and a fork 24 attached to the operating chair 23, as illustrated in FIG. 4.
  • the lever 22 and the fork 24 are horizontally movable so that the dentist may pass between the unit stand 4 and the operating chair 23 if necessary.
  • FIG. 5 Another embodiment of our invention is shown in FIG. 5.
  • the height adjustable cuspidor 1 is mounted on a pedestal 5, and a console bracket 25 'for the cup 26 and the cup filler 27 has been provided.
  • the water supply and waste lines are housed in the the supporting arm 3 and in the pedestal 5.
  • a cuspidor provided with the new height adjusting device may also be mounted directly on the movable part of the operating chair 23, as for example at the arm rest, without difficulty.
  • the height adjusting device pertaining to my invention permits final adjustment of the cuspidor bowl position relative to the patients mouth.
  • a structure for use by dentists and their patients comprising, in combination:
  • a cuspidor assembly including a bowl movably mounted on said dental stand;
  • lever means attached to the cuspidor assembly and pivoted for movement in a horizontal plane;
  • a device in accordance with claim 1 in which said lever is vertically rigid and in which said engaging means comprises a fork into which said lever is adapted to pivot.
  • a device for adjusting the height of a dental cuspidor assembly comprising, in combination: a parallel motion linkage including a supporting arm forming an angularly adjustable articulation parallelogram, a lengthwise adjustable diagonal strut mounted in said arm, a coil spring operatively associated with said strut for compensating the weight of the cuspidor assembly and the supporting arm, and means for adjusting the tension of the spring relative to the weight of the cuspidor, the weight of which is to be compensated.
  • said diagonal strut consists of two tubes which are provided with inside and outside threads screwed together, one of said tubes being pivotally mounted on a hinge bolt where the cuspidor assembly is supported and the other tube being held by means of an internal stop against said coil spring, said coil spring being held at the other end against a holding ring which is fixed to the diagonal strut.
  • a cuspidor assembly including a bowl, said assembly being movably mounted on said dental stand;
  • a vertically movable dental treatment appliance connected to a support by means of a support arm comprising an angularly adjustable articulation parallelogram linkage including four corner pivots and further comprising a diagonal strut, said strut including a spring and being connected between two of said pivots for compensating the Weight of said appliance, the combination therewith of:
  • said strut comprises a pair of mating tubes, screw threaded one inside the other, and in which said spring is mounted inside said mating tubes.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
US353776A 1963-03-25 1964-03-23 Device for variable height positioning of treatment appliances on dental equipment Expired - Lifetime US3418714A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1963R0034778 DE1198956C2 (de) 1963-03-25 1963-03-25 Vorrichtung zur Hoehenverstellung von Speibecken nebst Zubehoer an zahnaerztlichen Einrichtungsgegenstaenden

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US3418714A true US3418714A (en) 1968-12-31

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DE (1) DE1198956C2 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530513A (en) * 1967-09-08 1970-09-29 Weber Dental Mfg Co Dental bowl support construction
US5037054A (en) * 1990-06-13 1991-08-06 Waterloo Furniture Components Ltd. Adjustable support mechanism for a keyboard platform
US5145136A (en) * 1990-06-13 1992-09-08 Waterloo Furniture Components Ltd. Adjustable support mechanism for a keyboard platform
US5257767A (en) * 1990-06-13 1993-11-02 Waterloo Furniture Components, Ltd. Adjustable support mechanism for a keyboard platform
US5513579A (en) * 1993-07-16 1996-05-07 Waterloo Furniture Components, Ltd. Adjustable computer keyboard support mechanism
US20100200712A1 (en) * 1997-03-12 2010-08-12 Humanscale Corporation Keyboard Support Mechanism
USD851338S1 (en) * 2017-05-16 2019-06-11 Joel Brown Adjustable receptacle for pet foods and beverages

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5657444A (en) * 1979-10-16 1981-05-19 Morita Mfg Dental treatment device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1041206B (de) * 1957-07-12 1958-10-16 Siemens Reiniger Werke Ag Zahnaerztliche Einrichtung
US2980479A (en) * 1957-08-08 1961-04-18 Vulcan Hart Mfg Company Inc Apparatus for storing stacked articles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1041206B (de) * 1957-07-12 1958-10-16 Siemens Reiniger Werke Ag Zahnaerztliche Einrichtung
US2980479A (en) * 1957-08-08 1961-04-18 Vulcan Hart Mfg Company Inc Apparatus for storing stacked articles

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530513A (en) * 1967-09-08 1970-09-29 Weber Dental Mfg Co Dental bowl support construction
US5037054A (en) * 1990-06-13 1991-08-06 Waterloo Furniture Components Ltd. Adjustable support mechanism for a keyboard platform
US5145136A (en) * 1990-06-13 1992-09-08 Waterloo Furniture Components Ltd. Adjustable support mechanism for a keyboard platform
US5257767A (en) * 1990-06-13 1993-11-02 Waterloo Furniture Components, Ltd. Adjustable support mechanism for a keyboard platform
US5513579A (en) * 1993-07-16 1996-05-07 Waterloo Furniture Components, Ltd. Adjustable computer keyboard support mechanism
US5697303A (en) * 1993-07-16 1997-12-16 Waterloo Furniture Components Adjustable computer keyboard support mechanism
US20100200712A1 (en) * 1997-03-12 2010-08-12 Humanscale Corporation Keyboard Support Mechanism
US7841569B2 (en) 1997-03-12 2010-11-30 Humanscale Corporation Keyboard support mechanism
US7841570B2 (en) 1997-03-12 2010-11-30 Humanscale Corporation Keyboard support mechanism
USD851338S1 (en) * 2017-05-16 2019-06-11 Joel Brown Adjustable receptacle for pet foods and beverages

Also Published As

Publication number Publication date
DE1198956B (de) 1965-08-19
DE1198956C2 (de) 1966-04-28

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