EP0813377A1 - Klemmung für höhenverstellbare rückenlehnen - Google Patents
Klemmung für höhenverstellbare rückenlehnenInfo
- Publication number
- EP0813377A1 EP0813377A1 EP96946007A EP96946007A EP0813377A1 EP 0813377 A1 EP0813377 A1 EP 0813377A1 EP 96946007 A EP96946007 A EP 96946007A EP 96946007 A EP96946007 A EP 96946007A EP 0813377 A1 EP0813377 A1 EP 0813377A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- clamping
- clamp
- height
- adjustable
- actuating body
- 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.)
- Granted
Links
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
Definitions
- the invention relates to a clamp for height-adjustable backrests with the features of the preamble of claim 1.
- Such clamps consisting of a guide part for a tubular part of the backrest, and a clamping device, such as a screw for clamping the tubular part in the guide part, have long been known.
- a backrest clamp is known, in which a small body can be brought into engagement with the tubular part of a backrest by means of a laterally arranged one.
- the known clamps often have the disadvantage that the pipe part loosens over time.
- the object of the present invention is to provide a clamp for height-adjustable backrests for chairs, which does not loosen permanently and which is easy and convenient to use.
- a clamping device for clamping the tubular part of a backrest consists of a clamping body which is pivotable at an upper pivot point onto the tubular part in the guide part or a adjacent, fixedly connected to this part, and an actuating body, wherein the actuating body is arranged below the pivot point of the clamping body, with respect to the tubular part behind the clamping body, and wherein the
- Actuating body has at least two different diameters from its axis of rotation.
- the actuating body has a screw or spiral cross section.
- the clamping body is mounted on a bolt in the guide part with a pivoting lever directed downward and the lower end of the pivoting lever lies against the actuating body in at least one of its positions.
- the clamping body or the swivel lever has a spring-loaded latching lug for a recess in the tubular part of the backrest.
- Figures 1 to 3 a clamp in three views, of which in Figure 1 in section.
- Fig. 4 to 6 the clamping body of Fig. 1 to 3 in three views.
- the clamp 1 consists of a guide part 2 with a rear and two side walls, so that a U-shaped cross section results in the top view, the rear wall being provided with two incisions 2 'which are bent outwards, so that a tubular part 3 of a backrest in the guide formed by the incisions 2 'and the rear wall is displaceably guided, and from a clamping device to clamp the pipe part 3 in the desired insertion depth.
- the clamping device consists of a clamping body 10, which is rotatably supported by a pivot lever 4 jointly on a bolt 5 mounted transversely and at the top in the guide part 2, and an actuating body 6. As can be seen in the plan view, the clamping body 10 is located on the Pipe part 3.
- the clamping body 10 is fastened in the side walls of the pivoting lever 4 by means of a pin 12, snap noses or the like.
- the bolt 5 it has a groove 17 shown in more detail in FIG. 4 on its rear side.
- the rear wall of the pivot lever 4 is recessed in this area. In the position shown, the clamping body 10 is only against the pipe part 3 and does not clamp it.
- the guide part 2 has holes 9 in its side walls for attachment to a seat support.
- the pivot lever 4 which in plan view has a U-shaped cross section open to the tubular part 3 and whose side walls partially surround the clamping body 10, is extended downward and can be brought into engagement with an actuating body 6.
- the actuating body 6 is mounted on a rotatable cross pin 7 in the side walls of the guide part 2.
- the cross pin 7 is extended on one side, as shown in Fig. 3, and provided with a handwheel.
- the actuating body 6 has a helical contour.
- the circumferentially weakest side of the actuating body 6 faces the lower end of the pivot lever 4. If the actuating body 6 is rotated clockwise, it presses finally the larger side on the pivot lever 4, whereby the clamping body 10 is pressed onto the tubular part 3.
- the clamping force is high.
- the pipe part 3 is secured against inadvertent pulling out and too deep insertion.
- the clamp body In the clamp body
- a pull-out protection is integrated.
- This consists of a pawl 11 rotatably mounted on the bolt 5.
- the clamping body 10 as shown in FIG. 6, has a vertical groove 16.
- the pawl 11 extends downward in the groove 16 and has a recess for the pin 12, the snap lugs or the like, which also limits the path of the pawl 11.
- the pawl 11 is acted upon by a spring 13 which is between the lower end of the pawl
- Pipe part 1 and is stopped.
- the pawl 11 slides out of the cutout 3 'without resistance.
- the guide part 2 has a nose 18 below the shaft for the tubular part, which prevents the tubular part from being pushed further.
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
- Clamps And Clips (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29600214U | 1996-01-08 | ||
DE29600214U DE29600214U1 (de) | 1996-01-08 | 1996-01-08 | Klemmung für höhenverstellbare Rückenlehnen |
PCT/DE1996/002245 WO1997024957A1 (de) | 1996-01-08 | 1996-11-22 | Klemmung für höhenverstellbare rückenlehnen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0813377A1 true EP0813377A1 (de) | 1997-12-29 |
EP0813377B1 EP0813377B1 (de) | 2002-03-27 |
Family
ID=8017767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96946007A Expired - Lifetime EP0813377B1 (de) | 1996-01-08 | 1996-11-22 | Klemmung für höhenverstellbare rückenlehnen |
Country Status (7)
Country | Link |
---|---|
US (1) | US5882078A (de) |
EP (1) | EP0813377B1 (de) |
BR (1) | BR9607448A (de) |
DE (2) | DE29600214U1 (de) |
IL (1) | IL121633A0 (de) |
PL (1) | PL322168A1 (de) |
WO (1) | WO1997024957A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6062647A (en) * | 1999-07-08 | 2000-05-16 | Mei; Teng-Fu | Adjustable armrest assembly |
US9096151B2 (en) | 2011-05-27 | 2015-08-04 | Husqvarna Ab | Lawn care vehicle adjustable seat |
USD793788S1 (en) * | 2015-01-08 | 2017-08-08 | Yu-Shan Lai | Chair back adjuster |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1630870A (en) * | 1926-04-27 | 1927-05-31 | Carl F Strunck | Display stand |
GB927153A (en) * | 1960-12-08 | 1963-05-29 | Coop Wholesale | Improvements in or relating to chairs |
US4430017A (en) * | 1982-04-29 | 1984-02-07 | Mardan Corp. | Musical instrument support |
DE8410660U1 (de) * | 1984-04-05 | 1985-05-09 | Grammer Sitzsysteme GmbH, 8450 Amberg | Stuhl mit einer höhenverstellbaren Rückenlehne |
DE3527783A1 (de) * | 1985-08-02 | 1987-02-12 | Froescher August Gmbh Co Kg | Verstelleinrichtung fuer die stufenweise arretierbare hoehenverstellung von rueckenlehnen an arbeitsstuehlen |
JPH0520959Y2 (de) * | 1988-04-21 | 1993-05-28 | ||
US5232265A (en) * | 1992-02-11 | 1993-08-03 | Shepherd Products U.S., Inc. | Vertical back adjust for chairs |
US5382077A (en) * | 1992-07-29 | 1995-01-17 | Doerner Products Ltd. | Height adjustment mechanism for a chair seat back |
DE4335320A1 (de) * | 1993-10-15 | 1995-04-20 | Sifa Sitzfabrik Gmbh | Höhenverstellung für Rückenlehnen von Stühlen |
US5449004A (en) * | 1994-12-22 | 1995-09-12 | Sanchez, Jr.; Esberto J. L. | Birthing gown |
DE29510446U1 (de) * | 1995-06-28 | 1995-11-09 | SIFA Sitzfabrik GmbH, 92237 Sulzbach-Rosenberg | Rückenlehnenklemmung |
-
1996
- 1996-01-08 DE DE29600214U patent/DE29600214U1/de not_active Expired - Lifetime
- 1996-11-22 PL PL96322168A patent/PL322168A1/xx unknown
- 1996-11-22 IL IL12163396A patent/IL121633A0/xx unknown
- 1996-11-22 WO PCT/DE1996/002245 patent/WO1997024957A1/de active IP Right Grant
- 1996-11-22 US US08/913,134 patent/US5882078A/en not_active Expired - Fee Related
- 1996-11-22 EP EP96946007A patent/EP0813377B1/de not_active Expired - Lifetime
- 1996-11-22 BR BR9607448A patent/BR9607448A/pt not_active Application Discontinuation
- 1996-11-22 DE DE59608965T patent/DE59608965D1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9724957A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1997024957A1 (de) | 1997-07-17 |
IL121633A0 (en) | 1998-02-08 |
US5882078A (en) | 1999-03-16 |
DE59608965D1 (de) | 2002-05-02 |
EP0813377B1 (de) | 2002-03-27 |
DE29600214U1 (de) | 1996-02-29 |
BR9607448A (pt) | 1998-06-30 |
PL322168A1 (en) | 1998-01-19 |
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