EP0456008B1 - Beingestell für ein Klappmöbel und Gelenkteil für ein Beingestell - Google Patents

Beingestell für ein Klappmöbel und Gelenkteil für ein Beingestell Download PDF

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Publication number
EP0456008B1
EP0456008B1 EP91106012A EP91106012A EP0456008B1 EP 0456008 B1 EP0456008 B1 EP 0456008B1 EP 91106012 A EP91106012 A EP 91106012A EP 91106012 A EP91106012 A EP 91106012A EP 0456008 B1 EP0456008 B1 EP 0456008B1
Authority
EP
European Patent Office
Prior art keywords
joint
pin
hole
legs
leg
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.)
Expired - Lifetime
Application number
EP91106012A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0456008A1 (de
Inventor
Rainer Dipl.-Ind.-Des. Schmitz
Wolf-Dieter Dipl.-Ind.-Des. Krause
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.)
HARTMAN GROEP BV
Original Assignee
HARTMAN GROEP BV
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Filing date
Publication date
Application filed by HARTMAN GROEP BV filed Critical HARTMAN GROEP BV
Publication of EP0456008A1 publication Critical patent/EP0456008A1/de
Application granted granted Critical
Publication of EP0456008B1 publication Critical patent/EP0456008B1/de
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
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/14—Beach chairs ; Chairs for outdoor use, e.g. chairs for relaxation or sun-tanning
    • A47C1/143—Chaise lounges
    • 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
    • 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
    • A47C4/08—Folding chairs with inflexible seats having a frame made of wood or plastics
    • A47C4/10—Folding chairs with inflexible seats having a frame made of wood or plastics with legs pivotably connected to seat or underframe
    • A47C4/14—Folding chairs with inflexible seats having a frame made of wood or plastics with legs pivotably connected to seat or underframe with cross legs
    • 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
    • A47C7/002—Chair or stool bases
    • A47C7/006—Chair or stool bases with castors

Definitions

  • the invention relates to a leg frame for a folding piece of furniture with at least one pair of legs, the two legs of which are connected in a V-arrangement at their upper ends via a joint that can be expanded and folded, the joint having a joint head connected to one leg with a joint pin and one with the other leg connected joint socket with a mortise.
  • the invention further relates to a joint part which is intended to make two legs of a leg frame for a folding piece of furniture in a V-shaped arrangement expandable and foldable.
  • leg frames or joint parts of the type mentioned at the outset are known (EP 267 487 A2).
  • two head parts are rotatably connected to one another.
  • One head part has two outer cheeks running parallel to one another with cams extending into the space delimited by outer cheeks, the other head part is provided with circular receiving chambers for the cams.
  • the above-mentioned and other known hinge devices are used to make folding furniture, such as camping, garden and patio chairs or loungers, so that these pieces of furniture can be folded to a minimum and take up little space in this state. It has been found to be disadvantageous that with very closely spaced legs of a pair of legs that are brought together in one joint, the risk of injury and bruising is very great, since the operator gets his fingers between the two legs. This creates a dangerous situation with folding furniture that is equipped with known leg frames and joints Scherstelle because the legs move towards each other until they lie on top of each other. It is therefore usually avoided that the joint is equipped so that the two legs are completely on top of each other. Because of this scope, the volume of the folded furniture is 15 to 25% larger than that of a piece of furniture that does not have this safety margin.
  • leg frame or a joint part for folding furniture in which dangerous situations of this type are avoided, even if it should be possible in principle to fold the legs one on top of the other. Nevertheless, the leg frame should not have any unwanted play in the spread position.
  • the pin hole is designed as an elongated hole extending transversely to the bisector of the spreading angle, and a control member is provided in the region of the joint, which at the extreme spread position of the legs the pivot pin at one end of the mortise.
  • the invention is also implemented by a corresponding joint part.
  • a pin hole is accordingly provided which allows the pin a certain play, so that in the folded state the two legs can be pulled apart by the effective length of the pin hole and pressed together again. In any case, it prevents the operator's fingers from getting caught between the legs. If the leg frame is spread out, a control element comes into action at a certain spreading angle which is smaller than the final spreading angle, that pushes the two legs apart in the joint area or pulls them together so that at the end point of the spreading movement the pin comes to rest in one or the other extreme position of the pin hole and is fixed there.
  • the pin hole is preferably a circular ring section which is rounded at its ends and points concavely toward the expansion opening.
  • Other mortise shapes are also conceivable, for example an essentially straight mortise hole, which has latching nests formed at its ends downwards.
  • This end of the mortise is the one that points towards the inside of the joint.
  • This end of the mortise is the one that faces the outside of the joint.
  • control element only intervenes when a certain spreading angle has been reached and has no effect when the legs are in the folded parallel position.
  • the individual parts assigned to the respective parts can also be assigned differently according to professional judgment, in each case mutatis mutandis.
  • the invention also relates to a joint part.
  • the use of this joint part is not only limited to a leg frame, but can also be used on other parts, for example in a joint between the seat and leg rest in a recliner furniture or between the backrest and the seat. foldable elements in seating.
  • a folding lounger 1 in which the leg frame 2 consists of two pairs of legs lying opposite one another on both sides of the folding lounger, the front legs 4, 4 'of which are joined together by a stiffening bar 9 and the rear legs 3, 3' of which are connected by a stiffening bar 9 ' are connected.
  • the legs frame 2 consists of two pairs of legs lying opposite one another on both sides of the folding lounger, the front legs 4, 4 'of which are joined together by a stiffening bar 9 and the rear legs 3, 3' of which are connected by a stiffening bar 9 ' are connected.
  • isolated pairs of legs 3, 4 and 3 ', 4' can of course also be used.
  • the pairs of legs 3, 4 and 3 ', 4' are connected to each other at their upper ends via a joint 10, so that they form the shape of an upside-down V's.
  • the design of the joint 10 and the joint region is essential for the invention.
  • Figures 3 to 7 show essential details.
  • the upper end of the rear leg 3 ends in a joint socket 13, which, as the plan view according to FIG. 4 shows, consists of two fork surface elements 17, 17 'which are spaced parallel to one another.
  • the fork surface elements 17, 17 ' are provided from the inside of the socket with depressions or preferably openings, which are referred to below as "pin holes" and which bear the reference number 16, 16'.
  • the pin hole 16 has an outer contour, as shown in Figure 3 in plan view.
  • the mortise extends transversely to the bisector W of the spreading angle ⁇ .
  • the definition of "transversely” is to be understood in such a way that an angle of 90 ° to the bisector W does not necessarily have to be observed, but rather indicates that the extension of the mortise does not extend in the direction of the bisector W.
  • Different angles can be taken with respect to the bisector of the angle, which is documented by the fact that the pin hole 16 does not run exactly straight, but is a circular ring section which is rounded at the ends and points concavely toward the expansion opening.
  • the pin hole 16 accordingly has a length, measured over the center sliding distance G of the pin hole, of about 1 ⁇ D, where D is the diameter of the pin 15 to be described.
  • the "center sliding distance" of the pin is designated by G in FIG.
  • a guide track 18 is provided, which consists of a smooth wall at the rear of the space between the two fork surface elements.
  • the upper part of the rear leg 3 forms a support element 19 which engages under the armrest 5 when the garden furniture is later assembled.
  • the other configuration of the rear leg corresponds to the usual measures to be provided in plastic production and will not be explained further here.
  • FIGS. 5 and 6 show the upper section of the front leg 4 of a leg frame.
  • the front leg 4 ends in its upper end in a joint head 14, which also has two fork surface elements 11, 11 'which are parallel to one another, but have a distance which is less than that of the elements 17, 17'.
  • the fork surface elements 11, 11 'each have a pin 15, 15', which consists of solid or solid plastic and in the exemplary embodiment described here has a diameter D of approximately 18 mm.
  • the two forked surface elements 11, 11 'provided with pins 15, 15' are inserted between the forked surface elements 17, 17 ', so that the outwardly projecting pins 15, 15' snap into the pin holes 16, 16 'and are rotatably held there.
  • the fork surface elements also have a sliding lug 12 arranged above the pin 15, which, as can be seen, forms the free point of the joint head 14 which is the most distant from the center of the pin 15.
  • FIG. 7 the two parts 3 and 4 are joined together in the region of the joint 10. It can be seen that the pin 15 has slid into the right position in the pin hole 16. In this position it is also fixed, because the sliding lug 12 has slid along the upper part of the guide track 18, the distance between the two parts 3 and 4 increasing in the area of the joint in accordance with the curvature and the distance of the sliding lug as the spread increases . With the outermost spread position ⁇ of the legs, as shown in FIG. 7, the pin 15 is therefore fixed on the ground at the extreme end of the pin hole 16 by pressure and by the stable configuration of the legs 3, 4.
  • the compatible parts slide lug 12 and guideway 18 form a control element which is present in the region of the joint and which fixes the joint pin 15 at one end of the pin hole 16 when the legs are in the extreme spread position.
  • the sliding lug 12 disengages, that is, it no longer slides on the guide path 18, so that the position of the pin 15 is free and the pin 15 can move back and forth within the pin hole 16. This ensures that when the legs are folded or are about to be folded, there is a certain amount of play corresponding to the length of the mortise, so that fingers or the like which get between the leg surface can no longer get stuck.
  • FIGS. 8 and 9 The space-saving version is shown in FIG. 8.
  • the pin 15 is in the left position of the pin hole 16 and thus allows the legs 3, 4 to lie firmly on one another.
  • a security area 20 is open, which results from the fact that the pin 15 has moved from the position according to FIG. 8 to the right position according to FIG. 9 within the pin hole 16 by simply pulling apart, which is possible without the use of force.
  • no "hooking" or the like is required.
  • the guide member automatically intervenes as soon as the sliding lug comes into contact with the guide track 18.
  • control member can comprise a guide web attached to the joint head, over which a guide claw attached to the joint socket overlaps.
  • a guide claw which acts similarly to a sliding lug, only pulls.
  • the guide claw pulls the two joint parts towards one another and finally brings the pin into the right position within the pin hole 16, if this is considered analogously to FIG. 7.
  • this embodiment may have certain disadvantages, since when spreading apart the guide claw must first be positioned in relation to your guide web.
  • the leg frame in particular the joint part, is preferably made exclusively of plastic.
  • other materials for example metal, can also be used.
  • Combinations of several plastics and / or plastic / metal are also conceivable.
  • the idea of the invention of a pin which can be moved within a pin hole within a pin hole can be easily realized.

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Furniture Connections (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
EP91106012A 1990-05-07 1991-04-16 Beingestell für ein Klappmöbel und Gelenkteil für ein Beingestell Expired - Lifetime EP0456008B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE9005126U 1990-05-07
DE9005126 1990-05-07
DE4026059A DE4026059A1 (de) 1990-05-07 1990-08-17 Beingestell fuer ein klappmoebel und gelenkteil fuer ein beingestell
DE4026059 1990-08-17

Publications (2)

Publication Number Publication Date
EP0456008A1 EP0456008A1 (de) 1991-11-13
EP0456008B1 true EP0456008B1 (de) 1994-11-02

Family

ID=25896002

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91106012A Expired - Lifetime EP0456008B1 (de) 1990-05-07 1991-04-16 Beingestell für ein Klappmöbel und Gelenkteil für ein Beingestell

Country Status (2)

Country Link
EP (1) EP0456008B1 (es)
DE (2) DE4026059A1 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW521142B (en) 2001-03-13 2003-02-21 Sharp Kk Cam mechanism and door opening/closing mechanism
CN1299620C (zh) * 2004-12-24 2007-02-14 崔忠民 多功能折叠式椅子
CA3140720A1 (en) * 2019-06-04 2020-12-10 Yeti Coolers, Llc Portable chair

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2789623A (en) * 1956-04-10 1957-04-23 Frank A Lisi Collapsible chair
JPS5948578A (ja) * 1982-09-14 1984-03-19 株式会社東芝 貯蔵庫の扉枢支装置
DE3309186C1 (de) * 1983-03-15 1984-04-05 Bemico Enschede B.V., Enschede Gelenkvorrichtung zur Anordnung zwischen Vorder- und Hinterbein eines Klappmöbels
DE8436612U1 (de) * 1984-12-14 1985-05-23 Heinz Kettler Metallwarenfabrik Gmbh & Co, 4763 Ense Klappsessel
DE8630586U1 (de) * 1986-11-14 1987-01-08 Karl Münkel GmbH & Co KG, 4837 Verl Gelenkvorrichtung zur Anordnung zwischen einem Vorder- und einem Hinterbein eines Klappmöbels

Also Published As

Publication number Publication date
DE59103390D1 (de) 1994-12-08
EP0456008A1 (de) 1991-11-13
DE4026059A1 (de) 1991-11-14
DE4026059C2 (es) 1992-02-20

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