EP0196067A2 - Charnière pour chaise pliante - Google Patents

Charnière pour chaise pliante Download PDF

Info

Publication number
EP0196067A2
EP0196067A2 EP86104092A EP86104092A EP0196067A2 EP 0196067 A2 EP0196067 A2 EP 0196067A2 EP 86104092 A EP86104092 A EP 86104092A EP 86104092 A EP86104092 A EP 86104092A EP 0196067 A2 EP0196067 A2 EP 0196067A2
Authority
EP
European Patent Office
Prior art keywords
stub
tab
connection
joint according
foot
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
Application number
EP86104092A
Other languages
German (de)
English (en)
Other versions
EP0196067B1 (fr
EP0196067A3 (en
Inventor
Jörg Rauschenberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0196067A2 publication Critical patent/EP0196067A2/fr
Publication of EP0196067A3 publication Critical patent/EP0196067A3/de
Application granted granted Critical
Publication of EP0196067B1 publication Critical patent/EP0196067B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C4/00—Foldable, collapsible or dismountable chairs
    • A47C4/04—Folding chairs with inflexible seats
    • A47C4/18—Folding chairs with inflexible seats having a frame made of metal
    • A47C4/20—Folding chairs with inflexible seats having a frame made of metal with legs pivotably connected to seat or underframe
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32254—Lockable at fixed position
    • Y10T403/32262—At selected angle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32254—Lockable at fixed position
    • Y10T403/32262—At selected angle
    • Y10T403/32319—At selected angle including pivot stud
    • Y10T403/32327—At selected angle including pivot stud including radially spaced detent or latch component
    • Y10T403/32336—Engaging notch or recess in outer periphery of component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32254—Lockable at fixed position
    • Y10T403/32262—At selected angle
    • Y10T403/32319—At selected angle including pivot stud
    • Y10T403/32401—Locked by nesting parts

Definitions

  • the invention relates to a joint for a folding chair with stubs for a seat, a backrest and a rear foot, the stub for the seat being molded onto a double-shell joint housing in which the other two stubs are about 90 ° to 120 ° between a position of use and a storage position in which the connection stubs run approximately parallel to one another, are pivotably mounted and are coupled to one another via a gear arranged in the joint housing.
  • the gear is formed by a toothed washer which meshes with one another and requires a relatively large structural volume. Shaping the toothing according to the rules of toothing technology would be too complex, so that the simplified shaping and relatively large tolerances do not result in precise rolling and local overstressing can hardly be avoided.
  • the teeth are susceptible to dirt.
  • the present invention has for its object to improve a joint of the type mentioned in such a way that with a simple compact construction a long service life with low susceptibility to wear and susceptibility to dirt is achieved and in the position of use the joint is secured against unintentional folding is.
  • the invention provides that the coupling is carried out so that in the opened end position of the pivotable stub the two articulation points of the tab with the pivotable stubs and one of the bearing bolts of one of the stubs for the foot or the backrest approximately lie in a connecting line.
  • An optimal use of the maximum available swivel angle can be achieved by d ate in the folded end position of the connection stub the two articulation points of the bracket with the swiveling connection stubs and the bearing bolts of the connection stub for the foot or the backrest also approximately in the vicinity of a connecting line lie, but the pivot point of the tab is on the same side of the connecting line as the bearing pin not lying on the connecting line.
  • This arrangement allows optimal power transmission when opening and closing with force transmission on the backrest without special guides.
  • the connecting stub to be blocked in its movement lie in such a way that the connecting line between the Bearing pin and the stub to be locked and the pivot point of the tab with the stub to be locked.
  • the bolts of the articulation points of the bracket can be designed as a circular cylindrical shape on which the bracket is mounted.
  • the arm ends then do not have to be weakened by a hole and the storage does not require any additional bolts which would have to be secured in a space-consuming manner.
  • connection stubs which can be pivoted relative to one another penetrate the joint housing in slots, can serve at least one slot end as an end stop for one of the connection stubs in the position of use to relieve force.
  • a free end of a connection stub can rest on the inside of the joint housing in its end position in the use position, so that the forces which occur during a load do not have to be transmitted through the tab, but are absorbed directly by the joint housing.
  • Sufficient space for the dimension of the arm ends can be achieved in that one of these arm ends has a tooth-gap-like recess for the free pivoting of the arm end of the other connecting piece, with a boundary surface of this recess possibly being present at the other arm end in the position of use and being at the same time can support direct power transmission.
  • the joint housing 1 consists of two mirror-image joint housing parts, to which a connecting stub 2 is molded for a seat (not shown).
  • a connecting stub 2 is molded for a seat (not shown).
  • two further connection stubs can each be pivoted relative to one another by approximately 90 ° to 120 ° 3, 4 for - also not shown - a backrest and a rear foot mounted on bearing bolts 5, 6, the two-shell joint housing 1 being firmly closed at the same time by caulking these bearing bolts 5, 6.
  • the arm ends 7, 8, which are at least partially protected in the joint housing 1, are coupled to one another via a tab 9 in the articulation points 10, 10 1 .
  • the coupling itself can be carried out by means of bolts or, as shown in FIG. 3, by means of circular cylindrical formations 11, 12 of the arm ends 7, 8, which protrude into an opening 13 in the tab 9.
  • connection stubs 3, 4 are composed of two mirror images of molded and stamped sheet metal parts.
  • the part protruding through the slots 14, 15 in the joint housing 1 is flat with raised edges 16 which abut one another, so that the tab 9 can be accommodated in the intermediate space formed thereby.
  • the arm ends 7, 8, which are of flat design, can slide on the joint housing side walls 17, which are also of flat design, and are guided there in such a way that buckling is largely prevented under high loads.
  • the slot ends 14 1 , 15 ' serve as an end stop of the stub axles 3 and 4 in their use position.
  • the bearing pin 5 In the lie the bearing pin 5, the pivot point 10 of the tab on the stub 3 and the Articulation point 10 'of the tab on the stub 4 approximately on a connecting line 21, as shown in Fig. 1.
  • the connecting stub 4 experiences a moment in the folding direction for a rear foot, then the joint of the joint is blocked by the aligned position of the tab 9 between the articulation point 10 'and the bolt 5. This blocking is particularly advantageous even when the backrest is not loaded, so that even when the loaded folding chair tilts, no dangerous folding can take place.
  • the articulation point 10 is located in the direction away from the bolt b outside the connecting line 21 of the bolt 5, with the articulation point 10 ', so that when the connection stub 4 has a moment in the closing direction, the connection stub 3 for the backrest even experiences a moment, albeit a small one, through which the connecting stub 3 is pressed against the slot end 14 1 .
  • a folding of the chair can easily be done by pivoting the non-blocked connection stub 3 by touching the backrest and seat, in which case the articulation point 10 'is pivoted so far into the articulated housing 1 in the storage position that it almost connects the connecting line 22 of the bolt 3 and the Articulation point 10 of the tab 9 reached at the stub 3.
  • the connecting stubs 2 to 4 are of similar design, but the connecting stubs 3 and 4 are practically two-armed and the articulation points 10, 10 1 are arranged on the arm ends.
  • the slot ends 14 ', 15' serve as an end stop for the stub axles 3 and 4 in their use position.
  • the free arm end 7 of the connection stub 3 can rest against the inside of the joint housing 1, so that practically no force has to be transmitted through the tab 9 in the use position.
  • a recess 18 and a corresponding projection 19 can be provided on the arm end 8 and on the arm end 7, oie are shaped so that they serve as mutual stops against pivoting of the connecting stubs 2, 3 at the end of the movement when the use position is reached.
  • the recess 18 and the projection 19 may be arranged so that the stub 4 supporting the rear foot is locked in its position of use against pivoting in the direction of folding. A folding of the chair is only possible by pivoting the stub 3 over the backrest, not shown.
  • the arm end 7 is provided with a recess 20 which allows the arm end 8 to pivot through.

Landscapes

  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Pivots And Pivotal Connections (AREA)
EP86104092A 1985-03-28 1986-03-25 Charnière pour chaise pliante Expired - Lifetime EP0196067B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3511238 1985-03-28
DE19853511238 DE3511238A1 (de) 1985-03-28 1985-03-28 Gelenk fuer einen klappstuhl

Publications (3)

Publication Number Publication Date
EP0196067A2 true EP0196067A2 (fr) 1986-10-01
EP0196067A3 EP0196067A3 (en) 1987-05-27
EP0196067B1 EP0196067B1 (fr) 1990-10-03

Family

ID=6266554

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86104092A Expired - Lifetime EP0196067B1 (fr) 1985-03-28 1986-03-25 Charnière pour chaise pliante

Country Status (3)

Country Link
US (1) US4684278A (fr)
EP (1) EP0196067B1 (fr)
DE (2) DE3511238A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT391182B (de) * 1988-07-27 1990-08-27 Pesau Karin Mag Elektrische lampe
US20020014791A1 (en) * 2000-02-24 2002-02-07 Choi Sang Byong Reclining chair
US6752452B2 (en) 2000-10-04 2004-06-22 Northpole Ltd Two-position collapsible reclining chair
US7100739B2 (en) * 2004-05-14 2006-09-05 Werner Co. Step stool, hinge and method
CA2582980C (fr) * 2004-10-01 2015-07-14 G. Daniel Pedemonte Chaise d'exterieur transportable polyvalente
US20080256747A1 (en) * 2007-04-19 2008-10-23 Hsien-Wen Chang Hinge device of a foldable chair
US20140132041A1 (en) * 2012-11-13 2014-05-15 Dave Manus Chair to Optimize Sun Exposure
KR101763026B1 (ko) * 2015-09-11 2017-07-28 주식회사 엑시옴 접이식 일체형 탁구대
US10405662B2 (en) * 2017-03-02 2019-09-10 Rio Brands, Llc Folding X-frame chair with extended backrest
US10321750B2 (en) * 2017-05-17 2019-06-18 Lido Holdings, Inc. Combined foldable chair and storage backpack
US10765584B2 (en) * 2019-01-03 2020-09-08 Shanq-Ching Shieh Foldable frame construction for mobility aids

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2247799A (en) * 1939-08-31 1941-07-01 Ferguson Brothers Mfg Company Folding chair
DE1204467B (de) * 1959-12-24 1965-11-04 Wilhelm Bahmueller Einstell- und verriegelbares Gelenk fuer zusammenlegbare Gestellc von Sitz- und Liegemoebeln od. dgl.
DE1814169U (de) * 1960-04-22 1960-06-30 Stromeyer & Co G M B H L Campingmoebel-gelenk mit zahngesperre.
DE1253961C2 (de) * 1961-08-05 1978-06-15 Fa. Wilhelm Bahmüller, 7067 Plüderhausen Einstellbares gelenk, insbesondere fuer sitz- und liegemoebel
DE1425970C2 (de) * 1964-02-10 1973-09-20 Kurz Gmbh, 7120 Bietigheim Gelenk, insbesondere fur Klappmobel od dgl
US3285654A (en) * 1965-07-16 1966-11-15 William H Cramer Folding beach chair
US3319997A (en) * 1965-09-02 1967-05-16 Clement Napoleon Locking device for folding chair
DE1952927U (de) * 1966-08-11 1967-01-05 Carl August Wirth K G Gelenk fuer dreibein-liegebett.
US3779655A (en) * 1971-12-23 1973-12-18 Sanshin Kinzoku Ind Co Ltd Angle variable joint for foldable chair
DE2365918A1 (de) * 1973-10-01 1977-03-10 Bemico Enschede Gelenkteil fuer klappmoebel
DE2358332A1 (de) * 1973-11-23 1975-05-28 Guenter Rauschenberger Einstellbares gelenk, insbesondere fuer liegemoebel
CH588022A5 (fr) * 1974-09-13 1977-05-31 Wyss Andre
FR2312996A1 (fr) * 1975-06-04 1976-12-31 Schnuettgen Alfred Articulation pour chassis de meubles pliants de relaxation en position couchee et/ou assise, notamment de chaises longues de camping
IT8322630V0 (it) * 1983-08-17 1983-08-17 Intercommerz Union Icu Sedia pieghevole con articolazione a ginocchiera.

Also Published As

Publication number Publication date
DE3674612D1 (de) 1990-11-08
US4684278A (en) 1987-08-04
EP0196067B1 (fr) 1990-10-03
EP0196067A3 (en) 1987-05-27
DE3511238A1 (de) 1986-10-09

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