GB1056379A - Instrument tables - Google Patents
Instrument tablesInfo
- Publication number
- GB1056379A GB1056379A GB38274/65A GB3827465A GB1056379A GB 1056379 A GB1056379 A GB 1056379A GB 38274/65 A GB38274/65 A GB 38274/65A GB 3827465 A GB3827465 A GB 3827465A GB 1056379 A GB1056379 A GB 1056379A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- cylinder
- piston
- conduit system
- pin
- 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
Links
- 239000012530 fluid Substances 0.000 abstract 2
- 230000005484 gravity Effects 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/08—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a vertical axis, e.g. panoramic heads
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/02—Protective casings, e.g. boxes for instruments; Bags
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/2007—Undercarriages with or without wheels comprising means allowing pivoting adjustment
- F16M11/2014—Undercarriages with or without wheels comprising means allowing pivoting adjustment around a vertical axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/2092—Undercarriages with or without wheels comprising means allowing depth adjustment, i.e. forward-backward translation of the head relatively to the undercarriage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M2200/00—Details of stands or supports
- F16M2200/04—Balancing means
- F16M2200/044—Balancing means for balancing rotational movement of the undercarriage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M2200/00—Details of stands or supports
- F16M2200/06—Arms
- F16M2200/063—Parallelogram arms
Landscapes
- General Engineering & Computer Science (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Epidemiology (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
1,056,379. Dental instrument tables. EMDA FABRIK ELEKTRO - MEDIZINISCHER UND DENTALER APPARATE GEORG HARTMANN. Sept. 7, 1965 [Sept. 7, 1964], No. 38274/65. Heading A5R. [Also in Division A4] A dental instrument table adjustable for height comprises a table part mounted for vertical movement by a parallelogram linkage, a piston connected to a first side of the linkage, a hydraulic cylinder containing the piston and connected to a second side of the linkage, a conduit System connecting the cylinder chamber with an accumulator space, and a valve mechanism in the conduit system operable to permit movement of the table. The piston is preferably a double-acting piston, the cylinder chambers on both sides of the piston being connected by the conduit system and one of the chambers acting as the accumulator space. As illustrated in Fig. 1, stand 1 has a mount 2 connected by pin 3 to horizontally pivotable short arm 4 at the other end of which link 6 is horizontally pivotably mounted by pin 5. Parallel arms 9 and 10 are articulated at joints 7 and 8 to this link and at joints 11 and 12 to a second link 13 to which dental instrument table 15 is horizontally pivotably mounted by pin 14. The links 6 and 13 and the arms 9 and 10 form the parallelogram linkage, a tension spring 16 is mounted between the diagonal points 7 and 12. Link 6 carries jib 17 to which extension arm 26 of end cover 25 of cylinder 19 is pivotally connected by pin 18. The lower parallel arm 10 carries two flanges 20 to which a piston mounted in the cylinder is connected by pin 21; this pin passes through two diametrically opposed axial slots 23 in the side wall of the cylinder. The cylinder may also have at least one axially extending slot through which projects a socket or sockets connecting the conduit system with one or both cylinder chambers by means of a bore or bores extending through the piston; as illustrated in Fig. 2 (not shown), the conduit system comprises a single conduit which contains a single valve, an axial bore extending from each cylinder chamber through the piston to a lateral bore leading through an axially extending slot in the side wall of the cylinder to connecting sockets 35, Fig. 1, which communicate with hydraulic conduits 36 and 37 leading to a valve 38. The valve may be an electrically operable valve and, as shown, may be connected by electric cable 40 to operating push button 39 mounted adjacent handle 41 at the front edge 42 of table 15. The valve may be so mounted in the conduit system that its closing member is pressed against its seat by the hydraulic fluid when the table is loaded and is lifted off its seat by the fluid when the table is raised. Alternatively, the conduit system may comprise two conduits each of which contains a non-return valve which opens in a direction opposite to the direction of opening of the other valve. These valves may be spring loaded and the valve responding under load in the direction of the force of gravity may have a stronger spring than the other valve. As illustrated in Fig. 5 (not shown), two axial bores, each containing a non-return valve, extend through the length of the piston, conduits and valves external to the cylinder not being required.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE27737A DE1294593B (en) | 1964-09-07 | 1964-09-07 | Dental device with instrument table |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1056379A true GB1056379A (en) | 1967-01-25 |
Family
ID=7072900
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB38274/65A Expired GB1056379A (en) | 1964-09-07 | 1965-09-07 | Instrument tables |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1294593B (en) |
GB (1) | GB1056379A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4657217A (en) * | 1984-12-10 | 1987-04-14 | Siemens Aktiengesellschaft | Parallelogram bracket assembly with a force balancing mechanism |
GB2279285A (en) * | 1993-06-26 | 1995-01-04 | Timothy Robert Fawcett | Adjustable tool/component holder |
GB2322538A (en) * | 1997-02-28 | 1998-09-02 | Haropa Prod Ltd | Wall-mounted support arm |
WO2020014592A1 (en) * | 2018-07-13 | 2020-01-16 | A-Dec, Inc. | Positive positioning device and system |
CN112212138A (en) * | 2020-08-28 | 2021-01-12 | 南京瑞贻电子科技有限公司 | Height-adjustable fixing device and method for wave recorder |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3109721A1 (en) * | 1981-03-13 | 1982-09-23 | Kaltenbach & Voigt Gmbh & Co, 7950 Biberach | DENTAL DEVICE STAND |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1041206B (en) * | 1957-07-12 | 1958-10-16 | Siemens Reiniger Werke Ag | Dental facility |
-
1964
- 1964-09-07 DE DEE27737A patent/DE1294593B/en active Pending
-
1965
- 1965-09-07 GB GB38274/65A patent/GB1056379A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4657217A (en) * | 1984-12-10 | 1987-04-14 | Siemens Aktiengesellschaft | Parallelogram bracket assembly with a force balancing mechanism |
GB2279285A (en) * | 1993-06-26 | 1995-01-04 | Timothy Robert Fawcett | Adjustable tool/component holder |
GB2322538A (en) * | 1997-02-28 | 1998-09-02 | Haropa Prod Ltd | Wall-mounted support arm |
WO2020014592A1 (en) * | 2018-07-13 | 2020-01-16 | A-Dec, Inc. | Positive positioning device and system |
US11027438B2 (en) | 2018-07-13 | 2021-06-08 | A-Dec, Inc. | Positive positioning device and system |
CN112212138A (en) * | 2020-08-28 | 2021-01-12 | 南京瑞贻电子科技有限公司 | Height-adjustable fixing device and method for wave recorder |
Also Published As
Publication number | Publication date |
---|---|
DE1294593B (en) | 1969-05-08 |
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