GB1303238A - - Google Patents
Info
- Publication number
- GB1303238A GB1303238A GB4567971A GB4567971A GB1303238A GB 1303238 A GB1303238 A GB 1303238A GB 4567971 A GB4567971 A GB 4567971A GB 4567971 A GB4567971 A GB 4567971A GB 1303238 A GB1303238 A GB 1303238A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frame
- seat
- backrest
- pinion
- rack
- 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
Classifications
-
- 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
- A61G15/02—Chairs with means to adjust position of patient; Controls therefor
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
Abstract
1303238 Dental chairs KALTENBACH & VOIGT 30 Sept 1971 [29 Dec 1970] 45679/71 Heading A4J In a dental chair in which the inclination of the backrest frame 2 about a horizontal shaft 7 is adjusted by the operation of a hydraulic piston and cylinder unit 5 or an electric motor with a worm shaft, the rear end of the seat frame 1 is provided with an upwardly curved extension 11 having an arcuate rack 11a which is centred on the horizontal shaft, a pinion 10 mounted on the lower end of the backrest frame 2 meshing with the rack 11a and a further pinion (12) Fig.2 (not shown), which is mounted on the same shaft as pinion 10 meshing with a rack 13 on the backrest frame 2 such that during rearward and down - ward pivoting of the back rest frame its lower end approaches the rear end of the seat frame, and during forward and upward pivoting of the back-rest frame its lower end moves away from the rear end of the seat. The back-rest may be pivotally mounted for rotation about a horizontal axis on the backrest frame. A single piston and cylinder unit may be mounted centrally below the seat, the free end of the piston rod 8 being pivotally connected to a lever 3 arranged centrally of the backrest on the lower end thereof.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2064240 | 1970-12-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1303238A true GB1303238A (en) | 1973-01-17 |
Family
ID=5792451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4567971A Expired GB1303238A (en) | 1970-12-29 | 1971-09-30 |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2064240B1 (en) |
FR (1) | FR2120666A5 (en) |
GB (1) | GB1303238A (en) |
IT (1) | IT939764B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2219198A (en) * | 1988-05-31 | 1989-12-06 | James Paul Lansing | Adjustable bed table |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2340605C3 (en) * | 1973-08-10 | 1985-07-11 | Siemens AG, 1000 Berlin und 8000 München | Dental chair with padded backrest |
-
1970
- 1970-12-29 DE DE2064240A patent/DE2064240B1/en active Pending
-
1971
- 1971-08-30 IT IT69880/71A patent/IT939764B/en active
- 1971-09-30 GB GB4567971A patent/GB1303238A/en not_active Expired
- 1971-10-06 FR FR7135961A patent/FR2120666A5/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2219198A (en) * | 1988-05-31 | 1989-12-06 | James Paul Lansing | Adjustable bed table |
US4910816A (en) * | 1988-05-31 | 1990-03-27 | Jvj Enterprises, Inc. | Adjustable bed table |
Also Published As
Publication number | Publication date |
---|---|
DE2064240B1 (en) | 1972-01-05 |
IT939764B (en) | 1973-02-10 |
FR2120666A5 (en) | 1972-08-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |