GB2082901A - A flexible coupling device between a fixed part and a pivotable and adjustable part - Google Patents
A flexible coupling device between a fixed part and a pivotable and adjustable part Download PDFInfo
- Publication number
- GB2082901A GB2082901A GB8027352A GB8027352A GB2082901A GB 2082901 A GB2082901 A GB 2082901A GB 8027352 A GB8027352 A GB 8027352A GB 8027352 A GB8027352 A GB 8027352A GB 2082901 A GB2082901 A GB 2082901A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coupling device
- fixed part
- back rest
- elastic
- guide
- 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.)
- Withdrawn
Links
- 230000008878 coupling Effects 0.000 title claims abstract description 41
- 238000010168 coupling process Methods 0.000 title claims abstract description 41
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 41
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 claims description 2
- 230000012447 hatching Effects 0.000 claims description 2
Classifications
-
- 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
- A47C7/40—Support for the head or the back for the back
- A47C7/402—Support for the head or the back for the back adjustable in height
Landscapes
- Chairs Characterized By Structure (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
A connection between two parts, e.g. a seat frame and back rest 1, comprises a one piece coupling 3 with grooves 2 for the back rest and retaining grooves for rods of the seat frame interconnected by an elastically pivotable intermediate portion 9. Said coupling 3 is able to move freely upwardly on the seat frame rods, but the pin 6 must be released from a ratchet groove by means of an elastic tongue 5, 7 to allow movement of coupling 3 downwardly. The pivotable intermediate portion is made up from disc-like portions interconnected by webs 10. <IMAGE>
Description
SPECIFICATION
A coupling device between a fixed part and an elastic pivotable and adjustable part
The invention is related to a coupling device between a fixed part and an elastic pivotable and adjustable part which may have multiple applications for couplings of the said kind and the invention is characteristic in that the coupling device has been molded in one single piece with a selflocking guide for the fixed part and maintaining grooves for the movable part, arranged on opposite external sides of the coupling device and interconnected by means of an elastic resilient intermediate portion.Another feature of the invention is that the guide for the fixed part allows free movement in one direction, whereas the lock must be released manually for movement in the opposite direction by means of an elastic tongue or finger having a locking pin engaging ratchet grooves in the fixed part and by the elastic resilient intermediate portion being formed by lamellated plates having connecting webs forming the link between the movable part and the fixed part.
Purely as an example of one of the many possible applications the invention is hereafter described in a preferred embodiment for adjustably resilient connection of a seat and a back rest for instance on a working or office chair, wherein the seat with back rest support is representing the fixed part and the back rest itself is representing the resilient pivotable and adjustable part which must be adjustable along its support for the varying height in relation to the seat. In the drawings Fig. 1 is showing a connector or coupling device according to the invention in a preferred embodiment as a sideview, Fig. 2 is showing the same embodiment seen from above and Fig. 3 is showing the embodiment in a chair for better understanding of the invention.
The design and function of the invention will be better understood if the coupling device is imagined comprising three sections having three different functions and being made in one integrai piece: one guide section (extreme left on Fig. 1), one resilient intermediate section and one support section (extreme right in Fig. 1).
The movable part, in this case the back rest, is in Fig. 1 only indicated by its frame 1 provided with a shade or hatching and arranged in gripping grooves 2 on the front side of the coupling device 3 with its complementary profiles in a per se known manner. On the other and opposite side of the coupling device 3 a selflocking guide has been provided for the fixed part, in this case a rigid support for the back rest. This support is attached through the seat of the chair and is not shown in
Figs. 1 and 2 but will be seen in Fig. 3 as a tube or rod. Such a support may have many different forms and in the shown embodiment is supposed to comprise two parallel columns being guided in the grooves 4 (Fig. 2) arranged on both sides of the coupling device 3 at its back portion.
Instead of two parallel columns the said support may for instance be one stem having square or rectangular cross section and would in this case be guided in a corresponding hole in the coupling device 3 between those two grooves 4 which in this case will be superfluous. On the back side of the coupling device and above said guiding grooves 4 has been provided a locking tongue or finger 5 having a transverse bore 6 to take up a locking pin (not shown) which in the working position of the finger will engage a groove in the guide column and retain the back rest in the adjusted height above the chair seat.When the back rest shall be adjusted on the column(s) upward movement may be carried out as a pure displacement as the locking tongue or finger 5 with its pin 6 will be forced forwardly and release automatically, whereas a downward movement will press the locking pin into the groove in the column(s) and it will be necessary to use manual release of the lock by pressure on the top end 7 of the tongue 5 during the displacement. It will be understood that owing to this release movement of the locking tongue 5 a possible guiding bore for a central stem must be made sufficiently large to enable such release movement as indicated with the arrow 8.
Between the two described sections of the coupling device 3 will be found the elastically resilient intermediate portion which in the drawing is generally designated 9 and comprises lamellated plates shown in Fig. 1 as a number of three, but this is not critical. These plates are interconnected in their central area by means of webs 10 around which the plates may pivot elastically for adjusting the back rest to the back of the user. This pivotable movement is indicated with the arrows 11 in Fig. 1.
The portion of the coupling device serving as a guide for the column or columns or stem under the locking tongue or finger may be carried out differently without departing from the inventive idea.
1. Coupling device between a fixed part and an elastic pivotable and adjustable part, characterized by a moulded single piece having a selflocking guide for the fixed part and retaining grooves for the movable part arranged on respective exterior sides of the coupling device and interconnected by means of an elastic resilient intermediate portion.
2. Coupling device according to claim 1, characterized in that the guide for the fixed part is allowing free movement in one direction, whereas the lock must be released manually for movement in the opposite direction by means of an elastic tongue or finger having a locking pin engaging a ratchet groove in the fixed part.
3. Coupling device according to claim 1, characterized in that the elastic resilient intermediate portion is formed by lamellated
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (4)
1. Coupling device between a fixed part and an elastic pivotable and adjustable part, characterized by a moulded single piece having a selflocking guide for the fixed part and retaining grooves for the movable part arranged on respective exterior sides of the coupling device and interconnected by means of an elastic resilient intermediate portion.
2. Coupling device according to claim 1, characterized in that the guide for the fixed part is allowing free movement in one direction, whereas the lock must be released manually for movement in the opposite direction by means of an elastic tongue or finger having a locking pin engaging a ratchet groove in the fixed part.
3. Coupling device according to claim 1, characterized in that the elastic resilient intermediate portion is formed by lamellated plates having connecting webs which are representing the flexible connection between the movable part and the fixed part.
4. A coupling device substantially as hereinbefore described with reference to, and as shown in, the accompanying drawings.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8027352A GB2082901A (en) | 1980-08-22 | 1980-08-22 | A flexible coupling device between a fixed part and a pivotable and adjustable part |
FR8018699A FR2489440A1 (en) | 1980-08-22 | 1980-08-28 | Adjustable connection e.g. between chair frame and backrest - is adjusted by release of locking pin from ratchet groove by movement of elastic tongue (NO 13.10.80) |
NL8004981A NL8004981A (en) | 1980-08-22 | 1980-09-02 | Adjustable connection e.g. between chair frame and backrest - is adjusted by release of locking pin from ratchet groove by movement of elastic tongue (NO 13.10.80) |
DE19803035699 DE3035699A1 (en) | 1980-08-22 | 1980-09-22 | Adjustable connection e.g. between chair frame and backrest - is adjusted by release of locking pin from ratchet groove by movement of elastic tongue (NO 13.10.80) |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8027352A GB2082901A (en) | 1980-08-22 | 1980-08-22 | A flexible coupling device between a fixed part and a pivotable and adjustable part |
FR8018699A FR2489440A1 (en) | 1980-08-22 | 1980-08-28 | Adjustable connection e.g. between chair frame and backrest - is adjusted by release of locking pin from ratchet groove by movement of elastic tongue (NO 13.10.80) |
NL8004981A NL8004981A (en) | 1980-08-22 | 1980-09-02 | Adjustable connection e.g. between chair frame and backrest - is adjusted by release of locking pin from ratchet groove by movement of elastic tongue (NO 13.10.80) |
DE19803035699 DE3035699A1 (en) | 1980-08-22 | 1980-09-22 | Adjustable connection e.g. between chair frame and backrest - is adjusted by release of locking pin from ratchet groove by movement of elastic tongue (NO 13.10.80) |
Publications (1)
Publication Number | Publication Date |
---|---|
GB2082901A true GB2082901A (en) | 1982-03-17 |
Family
ID=49882638
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8027352A Withdrawn GB2082901A (en) | 1980-08-22 | 1980-08-22 | A flexible coupling device between a fixed part and a pivotable and adjustable part |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE3035699A1 (en) |
FR (1) | FR2489440A1 (en) |
GB (1) | GB2082901A (en) |
NL (1) | NL8004981A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0406713A1 (en) * | 1989-07-03 | 1991-01-09 | Plako Gmbh | Device for adjusting the height of two parts in relation to each other |
EP0594093A1 (en) * | 1992-10-20 | 1994-04-27 | WILHELM LINK GmbH & Co. KG Stahlrohrmöbel | Chair, particularly office-chair |
US6817667B2 (en) | 2000-09-28 | 2004-11-16 | Formway Furniture Limited | Reclinable chair |
-
1980
- 1980-08-22 GB GB8027352A patent/GB2082901A/en not_active Withdrawn
- 1980-08-28 FR FR8018699A patent/FR2489440A1/en not_active Withdrawn
- 1980-09-02 NL NL8004981A patent/NL8004981A/en not_active Application Discontinuation
- 1980-09-22 DE DE19803035699 patent/DE3035699A1/en not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0406713A1 (en) * | 1989-07-03 | 1991-01-09 | Plako Gmbh | Device for adjusting the height of two parts in relation to each other |
EP0594093A1 (en) * | 1992-10-20 | 1994-04-27 | WILHELM LINK GmbH & Co. KG Stahlrohrmöbel | Chair, particularly office-chair |
US6817667B2 (en) | 2000-09-28 | 2004-11-16 | Formway Furniture Limited | Reclinable chair |
US7798573B2 (en) | 2000-09-28 | 2010-09-21 | Formway Furniture Limited | Reclinable chair |
Also Published As
Publication number | Publication date |
---|---|
NL8004981A (en) | 1982-04-01 |
DE3035699A1 (en) | 1982-05-06 |
FR2489440A1 (en) | 1982-03-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |