EP1413229A1 - Chaise empilable - Google Patents

Chaise empilable Download PDF

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Publication number
EP1413229A1
EP1413229A1 EP02405905A EP02405905A EP1413229A1 EP 1413229 A1 EP1413229 A1 EP 1413229A1 EP 02405905 A EP02405905 A EP 02405905A EP 02405905 A EP02405905 A EP 02405905A EP 1413229 A1 EP1413229 A1 EP 1413229A1
Authority
EP
European Patent Office
Prior art keywords
chair
backrest
struts
bracket
legs
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Withdrawn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
EP02405905A
Other languages
German (de)
English (en)
Inventor
Egon Bräuning
Antonio Citterio
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.)
Vitra AG
Original Assignee
Vitra Patente AG
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 Vitra Patente AG filed Critical Vitra Patente AG
Priority to EP02405905A priority Critical patent/EP1413229A1/fr
Publication of EP1413229A1 publication Critical patent/EP1413229A1/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Withdrawn legal-status Critical Current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
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/04—Stackable chairs; Nesting chairs

Definitions

  • the present invention relates to a stackable chair with a fixed seat, which is preferably upholstered, carried by a frame and has a backrest. Armrests are arranged on both sides of the seat.
  • the frame with the front and rear legs is preferably made of tubular material.
  • Stackable chairs are available in many designs on the market.
  • the known chairs take up considerable space in the stacked state, so that compression would be desirable in order to achieve a closer layering with solid stability of an erected stack of chairs.
  • Another disadvantage of the previously known constructions is that the weight in a stack of chairs means that unsightly impressions remain in the upholstery or that spacing elements, such as stacking pins, have to be provided to protect the seat upholstery. The use of such elements affects the achievable stack density, could appear aesthetically disturbing and also has an expensive effect. With stackable chairs, compromises are often made in terms of seating comfort. There is no upholstery or armrests and the backrest is mostly inelastic.
  • the object of the invention is to simplify the structural design and thereby reduce the manufacturing costs, to design an aesthetic exterior, to enable very convenient handling and use and, in addition, to have a high, space-saving stacking density when stacked to achieve. It should be possible to dispense with the use of conventional stacking elements, such as pins under the seats to protect the upholstery.
  • An additional task is to make the assembly of the chair more efficient in series production to design and to keep the number of components low and to provide the connections between the components on the chair rationally in terms of production technology.
  • the stackable chair according to the invention has a seat which is carried by a frame and a backrest. Armrests are arranged on both sides of the seat, the armrests and the backrest forming a one-piece backrest part.
  • the single armrest consists of two struts, one above the other, spaced apart, which merge into the backrest at the back and into a connecting part at the front.
  • the two connecting parts are connected to the frame, which has front and rear legs.
  • the upper ends of the rear legs take up the connecting parts.
  • the front legs merge into a bracket that extends in principle horizontally.
  • the rear legs are attached on both sides, the upper ends of which lie above the level of the seat.
  • a cross strut extends in the front area of the bracket, the bracket and the cross strut forming the support of the seat.
  • the two struts are connected at the rear in pairs via openings in each case in a lower corner area of the backrest, adjacent to the respective side edge of the backrest. At the front, the struts merge in pairs into a backrest section of the respective connecting part.
  • the lower struts are preferably of a smaller width than the upper struts.
  • the upper and lower struts are at a distance from each other, which allows easy hand intervention.
  • the thickness of the two struts can be the same, a preferred cross section being of oval contour.
  • the backrest sections continue downwards in a tubular trunk section. A grip hole in the backrest is an advantage for easier grasping of the chair.
  • a piece of pipe with its upper part is firmly inserted.
  • a lower section of the respective tube piece protrudes from each connecting part and is intended for insertion into one of the upper ends of the rear legs.
  • the Backrest part can be efficiently produced as a one-piece plastic injection-molded part.
  • the front legs and the bracket are made in one piece from a bent piece of pipe.
  • the rear legs are welded to the side of the bar using connectors.
  • the cross strut is welded between the front legs at the transition to the bar.
  • the seat consists of a bowl-shaped upholstery support, an upholstery applied to it, which is usually covered by an upholstery cover, and a counter plate at the bottom.
  • On the upholstery support the hanging elements are formed by on the underside thereof, by first pockets located near the front edge, second pockets behind them and latching hooks lying near the rear edge.
  • the hooking elements on the counter plate are on the upper side, locking hooks located near the front edge and locking ledges located near the rear edge. There are noses pointing forward on the cross strut.
  • the second pockets of the cushion carrier sit on the lugs of the cross strut.
  • the latching hooks on the counter plate engage in the first pockets on the cushion support.
  • the locking hooks of the upholstery carrier are snapped onto the locking ledges of the counter plate.
  • Securing elements are provided to block the latching engagement of the latching hooks on the latching ledges and thus to prevent the counterplate from unintentionally detaching from the cushion carrier.
  • the special advantages of the chair are primarily its stackability, the high level of seating comfort, the convenient handling, and it also comes into its own in the simple, aesthetically sophisticated design that is made possible.
  • Pushed into one another when stacked, set the lower struts of the armrests of the upper chair in each case on the upper struts of the armrests of the lower chair in each case, as a result of which spacer elements for protecting the adjacent chairs in the stack are unnecessary.
  • the basically smooth underside of the counter plate of the respective upper chair only lies gently on the upholstery or the upholstery cover of the respective lower chair due to the support of the chairs positioned one above the other on the armrests. This means that even with a higher load, due to a higher stack of chairs, no unsightly pressure marks are left on the upholstery. Without the use of the commonly used stacking pins, the backrest, the rear legs and the front legs of the upper chair come to lie in front of the same parts of the lower chair and allow dense, space-saving stacking.
  • the chair shown consists of a seat 2 - 5 , which is supported by a frame 1 .
  • the seat 2 - 5 consists of the sheathed with an upholstery 3 cushion 4, a pad 4, the receiving cushion support 2 and the lowermost arranged counter-plate 5 together.
  • the cushion 4 consists, for example, of foamed material which is firmly connected to the cushion support 2 .
  • the cushion support 2 and the counter plate 5 are connected to one another by locking elements.
  • the frame 1 consists essentially of tubular material and has the front legs 10, 10 ' and the rear legs 11, 11' .
  • the legs 10 , 10 ' end below; 11 , 11 ' at the foot ends 100 , 100' ; 110 , 110 ' , which are usually provided with floor elements 6 , for example sliders or rollers.
  • the front legs 10 , 10 ' continue upwards in a horizontally extending bracket 12 , which forms the receiving plane for the seat.
  • the two rear legs 11 , 11 ' are each arranged on the outside of the bracket 12 by means of welded-in connecting pieces 13 , 13' at the rear area, the upper foot ends 111 , 111 ' lying above the plane of the seat.
  • a welded-in cross strut 14 extends, which has two lugs 140 pointing forward and spaced apart from one another.
  • a one-piece backrest part 7 which extends into two identical armrests 71 , 71 ' , extending therefrom Connecting parts 70,70 'and the backrest 72 is divided. Pipe pieces 73, 73 ' protrude from the connecting parts 70, 70' and are intended for fixed insertion into the upper ends 111 , 111 ' .
  • An armrest 71, 71 ' consists of a first strut 710, 710' located at the top and a second strut 716, 716 ' located at a distance a below.
  • the struts 710 , 710 ' ; 716 , 716 ' merge into the backrest 72 in corner regions 723, 723' .
  • the struts 710, 710 '; 716, 716' open into the connecting parts 70, 70 ', which are divided into upper back sections 700, 700' and tubular tubular sections 701, 701 ' which continue downwards.
  • a lower edge 720 , an upper edge 721 and the two side edges 722, 722 ' are defined on the backrest 72 .
  • this has a grip hole 724 .
  • the trunk sections 701, 701 ' have an emerging blind hole 702 , which is used to insert the upper sections 732 of the pipe sections 73, 73' .
  • the tube pieces 73, 73 ' are preferably cast into the plastic mass of the backrest part 7 , the lower parts 730, 730' protruding in order to be inserted into the upper foot ends 111, 111 ' . It is advantageous in terms of production technology to provide the lower parts 730 , 730 ' with an engagement notch 703 .
  • the lower parts 730 , 730 ' are provided with an outer knurling 731 , 731' for a reliable, firm hold.
  • the first struts 710 , 710 ' have a width b1 and a thickness c1
  • the second struts 716 , 716' have the width b2 and the thickness c2
  • c1 c2 and b1 > b2
  • the second struts 716 , 716 ' lie symmetrically under the first struts 710 , 710' .
  • the distance a is dimensioned so that a comfortable intervention with the hands can take place.
  • the dimensioning of the struts 710 , 710 ' ; 716 , 716 ' and the choice of material are selected in such a way that a spring effect comes into play when a user loads them.
  • the advantages of the chair according to the invention can also be seen in the stacked state if a plurality of chairs are largely stacked one above the other.
  • the load of the chairs on the armrests 71 , 71 ' is thus absorbed, as a result of which the basically smooth undersides 59 of the counter-plates 5 rest relatively gently on the respective cushions 3 , 4 of the chairs positioned below.
  • the shell-shaped cushion carrier 2 has the top 28 , the bottom 29 and the peripheral edge 23 with the perforation 230 provided therein, into which the applied foam material of the cushion 4 flows.
  • the front connection area 20 and the rear connection area 21 are defined on the cushion support 2 .
  • a plurality of systematically distributed first pockets 201 are provided on the underside 29 in the front connection region 20 , near the edge 23 .
  • second pockets 200 which are in a corresponding position to the lugs 140 on the cross strut 14 of the base frame 1 .
  • frame troughs 205 which break through the edge 23 and which serve to accommodate the front legs 10 , 10 ′ which open out.
  • the cushion support 2 has two frame troughs 215 , which in turn break through the edge 23 and in which the connecting pieces 13 , 13 ' come to rest. There are free spaces 216 within the frame troughs 215 in order to provide space for thicker weld seams, if necessary.
  • the hook elements 210 and the centering members 211 are located near the rear edge 23 .
  • the frame channel 24 for partially receiving the bracket 12 runs within the edge 23 .
  • On the top 28 there are free spaces 212 surrounding the hook elements 210 .
  • the counter plate 5 has the upper side 58 and the lower side 59 , the upper side 58 facing the cushion support 2 in the assembled state, while the largely flat and smooth lower side 59 points towards the floor.
  • a front connection area 50 and a rear connection area 51 are defined on the counterplate 5 .
  • frame recesses 505 , 515 which are congruent to the frame recesses 205 , 215 on the cushion support 2 .
  • Hook elements 501 spaced apart from one another, extend from the top 58 in the front connection area 50 and are positioned complementary to the first pockets 201 of the cushion carrier 2 .
  • latching ledges raise 510 which exit as perforations 512 on the bottom 59, as well as centering 511th
  • the centering members 211 on the cushion support 2 cooperate with the centering members 511 of the counter plate 5 in order to guarantee correct mounting.
  • the counter plate 5 runs around the edge 53 .
  • This group of figures illustrates the first phase in the application of the seat to the underframe 1 .
  • the upholstered support 2 the underside 29 of which is foamed with the upholstery material 4 , which is provided with an upholstery cover 3 , is raised with its rear connection area 21 and brought with its front connection area 20 to the cross strut 14 .
  • the second pockets 200 are brought here by slightly withdrawing the cushion carrier 2 via the lugs 140 on the cross strut 14 , so that the lugs 140 engage in the pockets 200 (see FIG. 9B).
  • the cushion carrier 2 is then lowered towards the horizontal, so that its rear connection region 21 rests on the bracket 12 and comes to rest in the frame channel 24 .
  • the hook elements 210 of the cushion support 2 are still unoccupied and the lugs 140 are completely seated in the second pockets 200 (see FIG. 10B).
  • This group of figures shows the attachment of the counter plate 5 to the cushion support 2 .
  • the counter plate 5 is in an inclined position with the rear connection area 51 lowered, with its front connection area 50 at the complementary front area Connection area 20 of the cushion support 2 introduced.
  • the hook elements 501 of the counterplate 5 are pushed into the first pockets 201 on the cushion support 2 (see FIG. 11B) and the rear connection area 51 is raised to such an extent that the notches 510 snap under the hook elements 210 (see FIG. 12C).
  • the cushion carrier 2 hangs on the cross strut 14 , is fixed there by means of the lugs 140 and the second pockets 200 and is held by the latched counter plate 5 , embedding the bracket 12 .
  • Securing elements 8 are provided in order to block the engagement of the hook elements 210 on the notches 510 and thus to prevent the counterplate 5 from unintentionally detaching from the cushion carrier 2 .
  • these securing elements 8 are short profile pieces with a rod-shaped base body 80 which has elastic latching lugs 81 on its end faces. In the state of the counter plate 5 snapped onto the cushion support 2 , the securing elements 8 are pressed into the openings 512 in the counter plate 5 , so that the securing elements 8 come to lie below the engagement between the hook elements 210 and the detents 510 .
  • the latching lugs 81 of the securing elements 8 are supported in the pressed-in state on the edges of the openings 512 on the upper side 58 of the counterplate 5 . This prevents the hook elements 210 from being bent open, so that the attached counter plate 5 is held securely.

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  • Chairs Characterized By Structure (AREA)
EP02405905A 2002-10-22 2002-10-22 Chaise empilable Withdrawn EP1413229A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02405905A EP1413229A1 (fr) 2002-10-22 2002-10-22 Chaise empilable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02405905A EP1413229A1 (fr) 2002-10-22 2002-10-22 Chaise empilable

Publications (1)

Publication Number Publication Date
EP1413229A1 true EP1413229A1 (fr) 2004-04-28

Family

ID=32050152

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02405905A Withdrawn EP1413229A1 (fr) 2002-10-22 2002-10-22 Chaise empilable

Country Status (1)

Country Link
EP (1) EP1413229A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018130630A (ja) * 2018-06-05 2018-08-23 タカノ株式会社 椅子

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE912393C (de) * 1951-03-30 1954-05-28 Mauser Kg Stapelbares vorderbeinloses Stahlrohr-Sitzmoebel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE912393C (de) * 1951-03-30 1954-05-28 Mauser Kg Stapelbares vorderbeinloses Stahlrohr-Sitzmoebel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018130630A (ja) * 2018-06-05 2018-08-23 タカノ株式会社 椅子

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