GB699899A - Improvement in or relating to head rests for chairs - Google Patents
Improvement in or relating to head rests for chairsInfo
- Publication number
- GB699899A GB699899A GB22437/52A GB2243752A GB699899A GB 699899 A GB699899 A GB 699899A GB 22437/52 A GB22437/52 A GB 22437/52A GB 2243752 A GB2243752 A GB 2243752A GB 699899 A GB699899 A GB 699899A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- knob
- chair back
- links
- worm
- 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
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/04—Hairdressers' or similar chairs, e.g. beauty salon chairs
- A47C1/10—Hairdressers' or similar chairs, e.g. beauty salon chairs with head-rests; with paper holders
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/04—Hairdressers' or similar chairs, e.g. beauty salon chairs
- A47C1/06—Hairdressers' or similar chairs, e.g. beauty salon chairs adjustable
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/38—Support for the head or the back for the head
Landscapes
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
Abstract
699,899. Seats. RITTER CO., Inc. Sept. 5, 1952 [Sept. 6, 1951], No. 22437/52. Class 52(ii) A head rest for an operating chair is carried by two relatively pivoted members which are vertically adjustable on the chair back and are self locking in adjusted position, adjustment and unlocking being capable of performance by one hand only. As shown the head pieces 15 are mounted on a yoke 14 pivoted in arms 13 forming part of a member 12 which frictionally engages a shaft 36 connecting one end of two spaced and parallel links 11. The other ends of the links 11 are secured to a shaft 28 mounted in bearings in a member 10 and carrying a worm wheel which is rotated, and thereby angularly -adjusting the links 11, by a worm operable by means of a knob 25. The member 10 has a curved part 18 vertically slidable between rollers 19, 20 on the chair back 17 and is automatically locked in position by a lever 22 provided with teeth 23 engageable with one or other of the teeth 24 on the chair back. The lever 22 extends to the knob 25 so that pressure on the end of the lever 22 against the influence of the spring 26 permits vertical adjustment of the head rest, while rotation of the knob gives angular adjustment of the head rest, non-reversal of the worm and worm wheel providing the self locking.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US699899XA | 1951-09-06 | 1951-09-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB699899A true GB699899A (en) | 1953-11-18 |
Family
ID=22092438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB22437/52A Expired GB699899A (en) | 1951-09-06 | 1952-09-05 | Improvement in or relating to head rests for chairs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB699899A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4711494A (en) * | 1986-02-22 | 1987-12-08 | General Motors Corporation | Foldable headrest for vehicle rear seat |
US5145233A (en) * | 1991-10-22 | 1992-09-08 | Tachi S Co., Ltd. | Arrangement of headrest in seat |
CN113291215A (en) * | 2021-06-28 | 2021-08-24 | 重庆长安汽车股份有限公司 | Manual regulation and automatically regulated car seat headrest |
-
1952
- 1952-09-05 GB GB22437/52A patent/GB699899A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4711494A (en) * | 1986-02-22 | 1987-12-08 | General Motors Corporation | Foldable headrest for vehicle rear seat |
US5145233A (en) * | 1991-10-22 | 1992-09-08 | Tachi S Co., Ltd. | Arrangement of headrest in seat |
CN113291215A (en) * | 2021-06-28 | 2021-08-24 | 重庆长安汽车股份有限公司 | Manual regulation and automatically regulated car seat headrest |
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