WO1997024959A1 - Auslösung für eine höhenverstellung von rückenlehnen - Google Patents
Auslösung für eine höhenverstellung von rückenlehnen Download PDFInfo
- Publication number
- WO1997024959A1 WO1997024959A1 PCT/DE1997/000002 DE9700002W WO9724959A1 WO 1997024959 A1 WO1997024959 A1 WO 1997024959A1 DE 9700002 W DE9700002 W DE 9700002W WO 9724959 A1 WO9724959 A1 WO 9724959A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- housing
- spring
- groove
- base plate
- button
- Prior art date
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 trigger for a height adjustment of backrests with the features of the preamble of claim 1.
- Chairs in particular office chairs, consisting of a housing in which a flat backrest support is held by a ball locking clamp, the backrest support being provided with recesses or openings for locking balls arranged one behind the other in the axial direction, which are held in the recesses or openings by means of a spring-loaded clamping bevel and the clamping bevel can be disengaged against the spring force by a button which is guided laterally out of the housing, is known for example from EP-A-0 264 555.
- the object of the present invention is to provide a trigger for a height adjustment of the type mentioned in the introduction, in which the same mechanism can be easily equipped with different buttons and forms a compact unit even without a button, from which no parts are lost.
- a base plate is fastened in the housing, which has a groove which is arranged approximately in the axis of the push button and has a narrower section for the end of the push button with which it is inserted into the housing and the base plate.
- the groove has a wider section after the narrower section, in which a shuttle, which has the clamping bevel for the ball and which is wider than the narrower section of the groove, extends from the button against the force of a spring which is opposite to the button End of the groove is supported, is guided.
- the step at the transition from the narrower to the wider section of the groove serves as a stop for the boat.
- the button advantageously has a recess in the interior of the housing, in which a spring, latching lug or the like of the base plate is latched.
- the spring, locking lug or the like is snugly locked against pulling the button.
- FIG. 1 is a plan view when the upper housing part is omitted
- FIG. 2 is a section along the line A - A
- FIG. 3 is a section along the line B - B of FIG. 1 ;
- the height adjustment according to FIGS. 1 to 6c consists of a flat housing 1 with a substantially rectangular cross section, in which a flat Backrest support 2 is slidably guided and clampable.
- the housing can be extended at the bottom and connected to a seat support. It can also have dimensions other than those shown and curved.
- the backrest support 2 has a series of bores 3 along its central axis, which define the respective insertion depth.
- a locking ball 4 is seated in one of these bores 3 and is pressed into the bore by a clamping bevel 5 'of a boat 5.
- the pressing pressure results from a spring 6, which is supported in a base plate 7, which is fastened in the housing 1, for example by screws 17.
- the base plate 7 also has a groove 16 in which the shuttle 5 can slide and find a stop on the side opposite the spring 6.
- On this side of the boat 5 is a button 8 with which it can be pressed back against the force of the spring 6, whereupon the clamping bevel 5 'releases the ball 4 and the backrest can be moved until the desired insertion depth is reached and the button 8 is released again.
- the button 8 has a flat recess 8 'into which a small spring 9 engages during assembly, so that the button 8 can no longer be pulled out. This measure prevents the inadvertent release of the button 8 and offers the possibility of using differently designed buttons in the same height adjustment. Since the base plate 7 is preferably made of
- the base plate 7 extends from the side of the button 8 over the large part of the base surface of the housing 1 and has a running surface and a stop edge for the backrest support 2.
- the backrest support 2 lies on a step
- the height adjustment is provided with a pull-out protection which is shown offset in FIGS. 1 and 3.
- This pull-out protection has a bore 22, which is actually supposed to lie next to the last bore 3 for the detent ball or in FIG. 1 even below it.
- a pivotable locking arm 19 is arranged in a recess 18 of the base plate 7, which is acted upon by a spring 20 supported in the base plate 7 such that its locking lug 19 '- as shown in Fig. 3, pressed into the bore 22 as soon as the backrest is pulled out far enough. The backrest is then blocked. The insertion is not hindered by the locking arm 19, since it has a run-off slope in this direction.
Landscapes
- Chairs Characterized By Structure (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59707016T DE59707016D1 (de) | 1996-01-10 | 1997-01-04 | Auslösung für eine höhenverstellung von rückenlehnen |
US08/913,113 US5884969A (en) | 1996-01-10 | 1997-01-04 | Release for a height adjustment of back rests |
EP97906979A EP0820245B1 (de) | 1996-01-10 | 1997-01-04 | Auslösung für eine höhenverstellung von rückenlehnen |
NO974048A NO974048L (no) | 1996-01-10 | 1997-09-03 | Utlöser for en höyderegulering for stolrygger |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29600333.6 | 1996-01-10 | ||
DE29600333U DE29600333U1 (de) | 1996-01-10 | 1996-01-10 | Auslösung für eine Höhenverstellung von Rückenlehnen |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997024959A1 true WO1997024959A1 (de) | 1997-07-17 |
Family
ID=8017851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1997/000002 WO1997024959A1 (de) | 1996-01-10 | 1997-01-04 | Auslösung für eine höhenverstellung von rückenlehnen |
Country Status (5)
Country | Link |
---|---|
US (1) | US5884969A (de) |
EP (1) | EP0820245B1 (de) |
DE (2) | DE29600333U1 (de) |
NO (1) | NO974048L (de) |
WO (1) | WO1997024959A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6250715B1 (en) * | 1998-01-21 | 2001-06-26 | Herman Miller, Inc. | Chair |
US6219694B1 (en) * | 1998-05-29 | 2001-04-17 | Research In Motion Limited | System and method for pushing information from a host system to a mobile data communication device having a shared electronic address |
US6032908A (en) * | 1998-08-12 | 2000-03-07 | Marketing Displays International | Sign stand with cam release assembly |
US7559517B2 (en) * | 2006-08-09 | 2009-07-14 | Kye Systems Corp. | Clamping mechanism for computer peripheral device |
US8500195B2 (en) * | 2011-02-16 | 2013-08-06 | II Norman Curlalion Smith | Adjustable supporting bracket for motorcycle backrest |
WO2012166084A1 (en) | 2011-05-27 | 2012-12-06 | Husqvarna Consumer Outdoor Products N.A., Inc. | Lawn care vehicle adjustable seat |
US9770111B2 (en) | 2015-03-05 | 2017-09-26 | A-Dec, Inc. | Height adjusting mechanism and stool for dental practitioner |
EP3387956B1 (de) * | 2017-04-12 | 2019-05-22 | L&P Property Management Company | Stuhl mit schraubenschaftbasiertem hebelbetätigungsmechanismus |
US11154454B2 (en) * | 2017-10-23 | 2021-10-26 | Physio-Control, Inc. | CPR chest compression device with releasable base member |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3295888A (en) * | 1965-10-21 | 1967-01-03 | Steelcase Inc | Backrest height adjusting apparatus for chairs and the like |
EP0264555A2 (de) * | 1986-10-16 | 1988-04-27 | Bürositzmöbelfabrik Friedrich-W. Dauphin GmbH & Co. | Stuhl, insbesondere Bürostuhl, mit höhenverstellbarer Rückenlehne |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1075323A (en) * | 1912-05-24 | 1913-10-14 | Israel Benjamins | Adjustable stand. |
US1101552A (en) * | 1913-07-03 | 1914-06-30 | Walter E Hume | Support for dress-forms and the like. |
DE1753671B1 (de) * | 1965-11-12 | 1971-08-26 | Boehler Nachf Wilhelm Boehler | Sessel mit verstellbarer sitzflaeche und oder rueckenlehne |
DE8905077U1 (de) * | 1989-04-21 | 1989-06-15 | Wiesner-Hager KG, Altheim | Stuhl mit höhenverstellbarer Rückenlehne |
-
1996
- 1996-01-10 DE DE29600333U patent/DE29600333U1/de not_active Expired - Lifetime
-
1997
- 1997-01-04 WO PCT/DE1997/000002 patent/WO1997024959A1/de active IP Right Grant
- 1997-01-04 DE DE59707016T patent/DE59707016D1/de not_active Expired - Fee Related
- 1997-01-04 EP EP97906979A patent/EP0820245B1/de not_active Expired - Lifetime
- 1997-01-04 US US08/913,113 patent/US5884969A/en not_active Expired - Fee Related
- 1997-09-03 NO NO974048A patent/NO974048L/no not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3295888A (en) * | 1965-10-21 | 1967-01-03 | Steelcase Inc | Backrest height adjusting apparatus for chairs and the like |
EP0264555A2 (de) * | 1986-10-16 | 1988-04-27 | Bürositzmöbelfabrik Friedrich-W. Dauphin GmbH & Co. | Stuhl, insbesondere Bürostuhl, mit höhenverstellbarer Rückenlehne |
Also Published As
Publication number | Publication date |
---|---|
DE29600333U1 (de) | 1996-03-07 |
NO974048D0 (no) | 1997-09-03 |
NO974048L (no) | 1997-09-03 |
US5884969A (en) | 1999-03-23 |
EP0820245B1 (de) | 2002-04-17 |
DE59707016D1 (de) | 2002-05-23 |
EP0820245A1 (de) | 1998-01-28 |
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