EP1321074A2 - Dispositif de verrouillage - Google Patents

Dispositif de verrouillage Download PDF

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Publication number
EP1321074A2
EP1321074A2 EP02023252A EP02023252A EP1321074A2 EP 1321074 A2 EP1321074 A2 EP 1321074A2 EP 02023252 A EP02023252 A EP 02023252A EP 02023252 A EP02023252 A EP 02023252A EP 1321074 A2 EP1321074 A2 EP 1321074A2
Authority
EP
European Patent Office
Prior art keywords
detent
teeth
fitting
detent fitting
locking
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Withdrawn
Application number
EP02023252A
Other languages
German (de)
English (en)
Other versions
EP1321074A3 (fr
Inventor
Horst Neubert
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.)
Rolf Benz AG and Co KG
Original Assignee
Rolf Benz AG and Co KG
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 Rolf Benz AG and Co KG filed Critical Rolf Benz AG and Co KG
Publication of EP1321074A2 publication Critical patent/EP1321074A2/fr
Publication of EP1321074A3 publication Critical patent/EP1321074A3/fr
Withdrawn legal-status Critical Current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
    • A47C17/00—Sofas; Couches; Beds
    • A47C17/04—Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds
    • A47C17/16—Seating furniture changeable to beds by tilting or pivoting the back-rest
    • A47C17/162—Seating furniture changeable to beds by tilting or pivoting the back-rest with adjustable back-rest

Definitions

  • the invention relates to a locking fitting with two against each other pivotable parts according to the preamble of claim 1.
  • Such locking fittings are known for example from so-called.
  • Sofa beds whose backrest can be swiveled from a standing to a lying position is to enlarge a seat of the sofa to a lying surface.
  • the Locking fittings have two mutually pivotable parts whose one, for example, with the seat or a frame of the sofa rigid connected and at the other the backrest is attached.
  • a first of the Both parts has a locking tooth for each pivot position, which like teeth a gear on an imaginary, to a pivot axis of the detent fitting concentric circular arc line are arranged.
  • the second part of the Detent fitting has a catch which, depending on the pivoting position the two parts of the detent fitting to each other with one of the locking teeth in Engage, so that the two parts of the detent against pivoting are fixed to each other.
  • the catch of the ratchet teeth disengaged.
  • the terms ratchet tooth and catch are to clear and distinguishable designation of locking elements of the detent fitting chosen which have the function, the two parts of the detent fitting in Locked state pivotally fixed to each other. The term choice should do not restrict the shape of the locking elements.
  • the invention is based on the object, a locking fitting of the above explained way to suggest the small construction a great moment withstand.
  • the locking fitting according to the invention has two or more notches, which simultaneously engage with an equal number of ratchet teeth.
  • the Loading of the detent fitting is characterized by two or more detent / detent pairs distributed.
  • the problem of so-called static overdetermination occur and it would only one of the detents are engaged with one of the locking teeth.
  • every part has a certain elastic deformability, so all the catches abut on ratchet teeth and as a result - if possibly too different parts - at the torque transfer between the two Part of the locking fitting participate. Due to the distribution of the invention Moment transfer to several notches and ratchet teeth is the load capacity enlarged the detent fitting according to the invention.
  • a development of the invention provides sawtooth-shaped ratchet teeth and a Spring element that holds the latches with the ratchet teeth in engagement.
  • This Embodiment of the invention has the advantage that the locking fitting according to Art a ratchet allows a pivoting in one direction and against a Pivoting in the opposite direction blocks.
  • a ratchet allows a pivoting in one direction and against a Pivoting in the opposite direction blocks.
  • oblique flanks of ratchet teeth which form ramps, press Resting against a spring force of the spring element disengaged and allow in this way, the pivoting of the detent fitting in one direction.
  • At a moment in opposite swing direction act steep and in approximately perpendicular to a direction of movement of the detents flanks of the Latching teeth that form abutments, a pivoting of the detent fitting opposite.
  • the catch fitting manually for pivoting in to unlock the reverse direction.
  • a development of the invention sees an unlocking device which unlocks the latching fitting automatically, when it is pivoted over an end position away.
  • the Unlocking holds the locking fitting during the return pivoting unlocked, i.
  • the unlocking device holds the detents when swinging back disengaged from the ratchet teeth until an opposite end position is reached, in which the unlocking device is automatically released, so that the Spring element brings the notches back into engagement with the ratchet teeth.
  • Locking fitting has two imaginary, not shown Swivel axis against each other pivotable parts 12, 14.
  • a first part 12 the two parts 12, 14 has the shape of a flat bar of rectangular cross-section.
  • a front end of this part 12 is circular arc rounded and with a number Ratchet teeth 16 provided, which like teeth of a gear on an imaginary Arc are arranged.
  • Concentric to the imaginary arc, on which the locking teeth 16 are arranged, a bearing hole 18 is transverse to the first part 12 attached continuously in the first part 12.
  • the ratchet teeth 16 are sawtooth, they have a radial to the bearing hole 18 aligned, steep Flank, which forms an abutment 20.
  • Another flank of the ratchet teeth 16 is inclined, it forms a ramp or disengagement surface 22.
  • the first part 12th has in the illustrated and described embodiment of the invention five Latching teeth 16 which are offset by an angle of 30 ° to each other.
  • Of the Bearing pin 24 connects the two parts 12, 14 of the locking fitting 10th pivotable with each other.
  • the second part 14 is a cross-sectionally C-shaped sheet metal rail in which a Slider 34 slidably rests.
  • the slider 34 has the same cross section like the first part 12 up.
  • the slider 34 is radial to that through the bearing pin 24 defined pivot axis of the detent fitting 10 slidably in the second part 14 stored.
  • a the first part 12 facing the end face of the slider 34 is concave and rounded complementary to the facing end face of the first part 12 formed and provided with recesses that fit the ratchet teeth 16 Make detents 36.
  • the slider 34 has three notches 36, which with three the ratchet teeth 16 are engaged.
  • a spring element in the form of a helical compression spring 38 pushes the slider 34 in the direction of the bearing pin 24 and thereby the detents 36 in engagement with the locking teeth 34.
  • the helical compression spring 38 is located in a transverse slot 40 of the slider 34, which at a the Bearing pin 24 far side is open.
  • the helical compression spring 38 is supported a sheet metal tab 42 from, with the cross-sectionally C-shaped sheet metal rail trained second part 14 is integrally bent and transverse standing.
  • Due to the sawtooth shape of the locking teeth 16 of the locking fitting 10 is kind a ratchet in one direction and locks against a pan in opposite direction: Is the second part 14 of the detent fitting 10 in the graphic representation counterclockwise opposite the pivoted first part 12, press the release surfaces 22 due to their obliquely alignment the detents 36 of the slider 34 against the spring force of Helical compression spring 38 disengaged from the ratchet teeth 16, causing the part 14 in the described pivoting direction relative to the first part 12th is pivotable.
  • the abutments lock in the opposite swing direction 20 due to its radial to the pivot axis of the detent fitting 10 Align the second part 14 on the detents 36 against pivoting.
  • each offset by 30 ° to each other locking teeth 16 allow Pivoting by 30 ° each.
  • the total of five ratchet teeth 16 and three notches 36 allow pivoting of the second part 14 relative to the first Part 12 at 0 °, 30 ° and 60 °.
  • the detent fitting 10 is an automatic unlocking device which comprises a sheet 44, which is shown in FIG. 1 and in FIG. 2 indicated by dashed lines.
  • the plate 44 is pivotable with a hole 46 placed on the bearing pin 24. It has in the region of the first part 12 a to the hole 46 concentric, circular arc-shaped recess 48, which is around a the intended pivoting angle of the two parts 12, 14 of the Detent fitting 10 to each other provided pivoting angle of the illustrated and described embodiment of the invention extends 60 °.
  • a first cylindrical pin 50 which is parallel to the bearing pin, 24 is pressed into a transverse bore in the first part 12.
  • the first cylinder pin 50 protrudes on the side of the sheet 44 from the first part 12.
  • Ends of the Recess 48 form stops that the pivot angle of the sheet 44th limit to the first part 12.
  • an inclined surface 52 which at one end first in a with respect to the bearing pin 24 outwardly projecting nose 54 and in connection it goes into a depression 56.
  • the inclined surface 52, the nose 54 and the Recess 56 cooperate with a second cylindrical pin 58 which is parallel is pressed to the bearing pin 24 in a transverse bore in the slide 34.
  • the second cylindrical pin 58 is also on the side of the sheet 44 from the Slider 34 before.
  • the function of the sheet 44 and the unlocking device is the following: Will the second part 14 in the drawing counterclockwise pivoted, takes the second cylindrical pin 58 by contact with the nose 54 the Sheet 44 with, the plate 44 thus pivoted together with the second part 14th
  • the inset in the recess 48 first cylinder pin 50 limits the Swivel angle of the sheet 44 in the illustrated and described Embodiment of the invention 60 °.
  • Will the second part 14 continue pivoted, the second cylindrical pin 58 on the nose 54 in the time Depression 56 pressed into which he snaps.
  • the second part 14 If the second part 14 swung back, the recess 48 of the sheet abuts 44 with its one end against the first cylindrical pin 50, the Swivel angle of the sheet 44 limited. Will the second part 14 continue swung back, the second cylinder pin 58 on the nose 54 of time the depression 56 is pressed. The second cylinder pin 58 returns to the Sloping surface 52 of the sheet 44 and the compression coil spring 38 presses the Slider 34 again in the direction of the bearing pin 24, whereby the detents 36 in Engage engagement with the ratchet teeth 16. The unlocking device is released and the locking fitting 10 locked again.
  • the detent fitting 10 is for use in adjusting a slope of a Backrest or side panels of a sofa bed, not shown intended.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Special Chairs (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Clamps And Clips (AREA)
EP02023252A 2001-12-18 2002-10-17 Dispositif de verrouillage Withdrawn EP1321074A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20120428U DE20120428U1 (de) 2001-12-18 2001-12-18 Rastbeschlag
DE20120428U 2001-12-18

Publications (2)

Publication Number Publication Date
EP1321074A2 true EP1321074A2 (fr) 2003-06-25
EP1321074A3 EP1321074A3 (fr) 2004-01-21

Family

ID=7965283

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02023252A Withdrawn EP1321074A3 (fr) 2001-12-18 2002-10-17 Dispositif de verrouillage

Country Status (2)

Country Link
EP (1) EP1321074A3 (fr)
DE (1) DE20120428U1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2784770A (en) * 1953-03-16 1957-03-12 Happich Gmbh Gebr Adjustable backrest mechanism
US4406497A (en) * 1980-03-13 1983-09-27 Keiper Automobiltechnik Gmbh & Co. Kg Apparatus for securing a variable position fitting element, particularly a fitting element for vehicle seats
US4659146A (en) * 1983-03-01 1987-04-21 Tubauto Articulation of the seat back of a seat for various vehicles
DE3723311A1 (de) * 1987-07-15 1989-01-26 Keiper Recaro Gmbh Co Freischwenkeinrichtung fuer die rueckenlehne eines fahrzeugsitzes
DE20103752U1 (de) * 2001-03-03 2001-06-28 ATL Engineering (UK) Ltd., Colchester, Essex Schwenkmechanismus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE808151C (de) 1949-05-21 1951-07-12 Ernst Hasenpflug Fa Gelenkbeschlag fuer Sitz- und Liegemoebel
DE1779548U (de) 1954-05-24 1958-12-18 Wilhelm Dr Ing Ludowici Vorgefertigter deckenfuellkoerper aus gebranntem ton.
DE1043604B (de) 1954-10-08 1958-11-13 Rudolf Steinborn Liegemoebel mit in Kopf-, Mittel- und Fussteil unterteilter Liegeflaeche
DE1732650U (de) 1956-07-06 1956-10-25 Eduard Spiess Verstellbares moebelstueck.
AT212999B (de) 1958-12-02 1961-01-10 Hermann Kolckhorst Möbel, insbesondere als Sitz- bzw. Liegemöbel dienendes Verwandlungsmöbel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2784770A (en) * 1953-03-16 1957-03-12 Happich Gmbh Gebr Adjustable backrest mechanism
US4406497A (en) * 1980-03-13 1983-09-27 Keiper Automobiltechnik Gmbh & Co. Kg Apparatus for securing a variable position fitting element, particularly a fitting element for vehicle seats
US4659146A (en) * 1983-03-01 1987-04-21 Tubauto Articulation of the seat back of a seat for various vehicles
DE3723311A1 (de) * 1987-07-15 1989-01-26 Keiper Recaro Gmbh Co Freischwenkeinrichtung fuer die rueckenlehne eines fahrzeugsitzes
DE20103752U1 (de) * 2001-03-03 2001-06-28 ATL Engineering (UK) Ltd., Colchester, Essex Schwenkmechanismus

Also Published As

Publication number Publication date
EP1321074A3 (fr) 2004-01-21
DE20120428U1 (de) 2002-04-04

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