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SE512632C2 - Backrest with limited suspension and spring - Google Patents

Backrest with limited suspension and spring

Info

Publication number
SE512632C2
SE512632C2 SE9801451A SE9801451A SE512632C2 SE 512632 C2 SE512632 C2 SE 512632C2 SE 9801451 A SE9801451 A SE 9801451A SE 9801451 A SE9801451 A SE 9801451A SE 512632 C2 SE512632 C2 SE 512632C2
Authority
SE
Sweden
Prior art keywords
spring
limiting
fastening
fastening means
pulling
Prior art date
Application number
SE9801451A
Other languages
Swedish (sv)
Other versions
SE9801451D0 (en
SE9801451L (en
Inventor
Kjell Svensson
Original Assignee
Ewes Staalfjaeder Ab
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 Ewes Staalfjaeder Ab filed Critical Ewes Staalfjaeder Ab
Priority to SE9801451A priority Critical patent/SE512632C2/en
Publication of SE9801451D0 publication Critical patent/SE9801451D0/en
Priority to AU42975/99A priority patent/AU4297599A/en
Priority to EP99947030A priority patent/EP1071576A1/en
Priority to PCT/SE1999/000572 priority patent/WO1999055553A1/en
Publication of SE9801451L publication Critical patent/SE9801451L/en
Publication of SE512632C2 publication Critical patent/SE512632C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/427—Seats or parts thereof displaced during a crash
    • B60N2/42709—Seats or parts thereof displaced during a crash involving residual deformation or fracture of the structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/4207—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces
    • B60N2/4214—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces longitudinal
    • B60N2/4228—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces longitudinal due to impact coming from the rear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/4249—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats fixed structures, i.e. where neither the seat nor a part thereof are displaced during a crash
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/12—Attachments or mountings
    • F16F1/123—Attachments or mountings characterised by the ends of the spring being specially adapted, e.g. to form an eye for engagement with a radial insert
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/12—Attachments or mountings
    • F16F1/128—Attachments or mountings with motion-limiting means, e.g. with a full-length guide element or ball joint connections; with protective outer cover

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Springs (AREA)
  • Seats For Vehicles (AREA)

Abstract

A back rest for a vehicle seat comprises an outer frame (9) and a inner support member (12) which is located inside the outer frame (9). A number of spring means (1) are provided between the frame (9) and the support member (12), the spring means having limited elongation length. Each one of the spring means (1) has two anchorage members (3, 4) and one limiter device (5) for limiting the elongation length. The limiter device (4) extends approximately between the two anchorage members (3, 4). The limiter device (5) has a free end which is provided with an engagement member (6) which is intended to engage with an arrest member on elongation of the spring (1).

Description

15 20 25 30 35 512 632 2 En i samband med fordonssäten stor nackdel är att tidigare kända fjädrar med begränsad utdragslängd inte kan monteras utan att i fordonssätet ingående komponenter konstrueras om. 15 20 25 30 35 512 632 2 A major disadvantage in connection with vehicle seats is that previously known springs with a limited extension length cannot be mounted without components included in the vehicle seat being redesigned.

PROBLEMSTÄLLNING Den föreliggande uppfinningen avser att tillhandahålla ett fordonssäte, som fjädrar tämligen normalt vid låga belastningar, men som blir stumt när den maximalt tillåtna uttöjningen uppnåtts. Ändamålet skall uppnås utan att be- fintli ga säteskonstruktioner behöver ändras.PROBLEM STATEMENT The present invention aims to provide a vehicle seat which springs fairly normally at low loads, but which becomes dull when the maximum permissible elongation is reached. The purpose must be achieved without the need to change certain seat constructions.

Uppfinningen har vidare till ändamål att tillhandahålla ett fjäderorgan med begränsad utdragslängd utan lösa delar, med en storlek som inte väsentligen skiljer sig från ett konventionellt fjäderorgan och med en enkel monterings- procedur.Another object of the invention is to provide a spring member with a limited extension length without loose parts, with a size which does not differ substantially from a conventional spring member and with a simple mounting procedure.

PRoBLEMLösNING De till grund för uppfinningen liggande målsättningarna uppnås om det inled- ningsvis antydda ryggstödet kännetecknas av att ett begränsningsorgan, som är tillverkat i ett stycke med en i vart och ett av fjäderorganen ingående drag- fjäder, begränsar fjäderorganets utdragslängd.TROUBLESHOOTING The objectives underlying the invention are achieved if the initially indicated backrest is characterized in that a limiting member, which is made in one piece with a tension spring included in each of the spring members, limits the extension length of the spring member.

Beträffande fjäderorganet uppnås målsättningen om detta ges kännetecknen att begränsningsorganet sträcker sig från dragfjädems andra fästorgan eller ett därmed fast förenat organ i längdriktningen för dragfjädern till ett område i närheten av ett första infastriingsorgan, varmed dragfjäderns första fästorgan samverkar, varvid begränsningsorganet i sin fria ände är försett med ett in- greppsorgan, vilket, vid utdragning av fjäderorganet, är anordnat att ingripa med ett stopporgan som är fast relativt det första infasmingsorganet.With regard to the spring means, the object is achieved if this is characterized in that the limiting means extends from the second fastening means of the tension spring or a member fixedly connected thereto in the longitudinal direction of the tension spring to an area near a first fastening means, with which the first fastening means cooperates. with an engaging means, which, when pulling out the spring means, is arranged to engage with a stop means which is fixed relative to the first phasing-in means.

Målsättningen uppnås när ett fiäderorgan enligt ovan används i ett fordons- Säte.The goal is achieved when a organ spring member as above is used in a vehicle seat.

Ytterligare fördelar uppnås enligt uppfinningen om uppfinningsföremålet även ges ett eller flera av särdragen enligt patentkraven 2-3 och 5-1 1. 10 15 20 25 30 35 512 632 3 SAMMANSTÄLLNING ÖVER RITNINGSFIGURER Uppfinningen skall nu beskrivas närmare under hänvisning till bifogade rit- ningar. På dessa visar: fig 1 en planvy av en stomme till ett ryggstöd enligt uppfinningen i vilket fjäderorganet enligt uppfinningen monterats; fig 2 en planvy av ett tjäderorgan enligt uppfinningen; och fig 3 fjäderorganet enligt fig 2 monterat och delvis utdraget. fig 4 en planvy av en alternativ utföringsfonn av tjäderorganet enligt upp- ñnningen.Additional advantages are achieved according to the invention if the object of the invention is also given one or more of the features according to claims 2-3 and 5-1 1. 10 15 20 25 30 35 512 632 3 COMPILATION OF DRAWING FIGURES The invention will now be described in more detail with reference to the accompanying drawings. These show: fi g 1 a plan view of a frame for a backrest according to the invention in which the spring member according to the invention is mounted; 2 g 2 is a plan view of a capercaillie according to the invention; and fi g 3 the spring member according to fi g 2 mounted and partially extended. fi g 4 is a plan view of an alternative embodiment of the capercaillie member according to the invention.

FÖREDRAGEN UTFÖRINGSFORM En konventionell dragtjäder är ofta utförd som en skruvlinjefonnad, gles- eller tätlindad fjäder med ett fästorgan i vardera änden. Dragfjädems skruv- linjeformade parti kommer nedan att benämnas fiäderkropp 2. Fästorganen kan ha varierande utseende, men är ofta utförda som krokar.PREFERRED EMBODIMENT A conventional tension spring is often designed as a helical, sparsely or tightly wound spring with a fastener at each end. The helical portion of the tension spring will hereinafter be referred to as fi spring body 2. The fastening members may have varying appearances, but are often designed as hooks.

Ett ryggstöd 13 för ett fordonssäte är bland annat uppbyggt av en yttre ram 9, sätesryggramen. Innanför den yttre ramen 9 är anordnat ett stödorgan 12, som i den föredragna utföringsfonnen utgörs av en trådmatta, vilken kan vara fäst i en innerram eller åtminstone längs motsatta, vertikala kanter ha grövre ram- delar 1 1. Denna är fjädrande förbunden med den yttre ramen 9. I ryggstöd, som är tillverkade enligt tidigare känd teknik, är sätesryggramen 9 och tråd- mattan 12 sammankopplade med konventionella dragijädrar.A backrest 13 for a vehicle seat is built, among other things, from an outer frame 9, the seat back frame. Inside the outer frame 9 a support member 12 is arranged, which in the preferred embodiment consists of a wire mat, which may be fixed in an inner frame or at least along opposite, vertical edges have coarser frame parts 1 1. This is resiliently connected to the outer frame 9. In backrests, which are manufactured according to prior art, the seat back frame 9 and the wire mat 12 are connected to conventional draw springs.

I den föredragna utföringsfonnen är dessa ersatta av ett antal tjäderorgan 1 med en begränsad utdragslängd. Genom detta särdrag kan en person, som sitter i fordonssätet, vid påkörning bakifrån, endast tryckas in i ryggstödet så långt som bestäms av fjäderorganens begränsade utdragslängd. Den energi- mängd, som maximalt kan ”laddas in i” tjäderorganen minskas härigenom, varigenom även minskas den katapultverkan framåt, som ryggstödet kan ut- sätta personen för. Risken för Whiplash-skador har häri genom minskat i mot- svarande grad. 'l ll |'|~:l n* åiiil äil ...LEA- ~ - ”i 10 15 20 25 30 35 512 632 4 I fig 1 visas ett ryggstöd till ett fordonssäte enligt uppfinningen. Fjäderorgan- en 1 är monterade mellan sätesryggens yttre ram 9 och en inre ram ll på en trådmatta 12. Sätesryggramen 9 är försedd med infastningsorgan i form av öron 10 med fásthål 7 (nedan andra infastningsorgan 7, 10). Stödorganet 12 har motsvarande infastningsorgan 8, (nedan forsta infastiiingsorganen), för de motsatta ändama av fiäderorganen 1. Dessa infästningsorgan är belägna på ramen ll av trådmattan 12, men kan också utgöras av själva ramen ll eller vertikala sidostänger till stödorganet 12. F j äderorganet 1 enligt uppfinningen kan monteras in i den sedan tidigare befintliga konstruktionen utan problem.In the preferred embodiment, these are replaced by a number of capercaillie members 1 with a limited extension length. Due to this feature, a person sitting in the vehicle seat, in the event of a rear-end collision, can only be pushed into the backrest as far as is determined by the limited extension length of the spring means. The amount of energy that can be maximally “charged into” the capercaillie organs is thereby reduced, thereby also reducing the catapult effect forward, which the backrest can expose the person to. The risk of whiplash injuries has thereby decreased to a corresponding degree. 'l ll |' | ~: l n * åiiil äil ... LEA- ~ - ”i 10 15 20 25 30 35 512 632 4 I fi g 1 shows a backrest for a vehicle seat according to the invention. The spring means 1 are mounted between the outer frame 9 of the seat back and an inner frame 11 on a wire mat 12. The seat back frame 9 is provided with fastening means in the form of ears 10 with fastening holes 7 (hereinafter other fastening means 7, 10). The support means 12 has corresponding fastening means 8, (hereinafter first fastening means), for the opposite ends of the spring means 1. These fastening means are located on the frame ll of the wire mat 12, but can also consist of the frame ll itself or vertical side bars of the support means 12. The spring means 1 according to the invention can be fitted into the already existing construction without problems.

Fjäderorganet kräver inte större utrymme och består inte av fler komponenter än en konventionell dragfiäder.The spring member does not require more space and does not consist of components other than a conventional traction spring.

I fig 2 visas ett fjäderorgan enligt uppfinningen. En dragtjäder är i vardera änden av sin fiäderkropp 2 försedd med fastorgan 3, 4. Fästorganet 4 (kommer nedan att kallas det andra fastorganet medan fästorganet 3 vid fjä- derlcroppens motsatta ände kommer att kallas det första fastorganet) är för- enat med ett begränsningsorgan 5, som löper i dragfiäderns längdriktning, t ex huvudsakligen parallellt med fjäderkroppen 2 utan att vara i kontakt med denna. Begränsningsorganet kan med fördel tillverkas i ett stycke med resten av tjäderorganet. I den motsatt fästorganet 4 belägna änden av begränsnings- organet 5 är anordnat ett ingreppsorgan 6. Ingreppsorganet 6 är anordnat på avstånd från det forsta fastorganet 3 i fjäderorganets 1 längdriktning. Då dragfjädern sträcks kommer fastorganet 3 och ingreppsorganet 6 att förflyttas relativt varandra. Det andra fastorganet 4 och ingreppsorganet 6 befinner sig alltid på ett huvudsakligen konstant avstånd från varandra. Detta avstånd är detsamma som tjäderorganets maximala utdragslängd.Fig. 2 shows a spring member according to the invention. A tension cap is provided at each end of its spring body 2 with fastening means 3, 4. The fastening means 4 (hereinafter referred to as the second fastening means while the fastening means 3 at the opposite end of the spring body will be called the first fastening means) are connected to a limiting means 5, which runs in the longitudinal direction of the traction spring, for example substantially parallel to the spring body 2 without being in contact with it. The limiting means can advantageously be manufactured in one piece with the rest of the capercaillie means. An engaging member 6 is arranged in the end of the limiting member 5 located opposite the fastening member 4. The engaging member 6 is arranged at a distance from the first fixed member 3 in the longitudinal direction of the spring member 1. When the tension spring is stretched, the fastening member 3 and the engaging member 6 will be moved relative to each other. The second fixed member 4 and the engaging member 6 are always at a substantially constant distance from each other. This distance is the same as the maximum extension length of the capercaillie member.

Ingreppsorganet 6 på begränsningsorganet 5 är placerat for att vid utdragning av tjäderkroppen 2 komma till anslag mot ett stopporgan, som är fast relativt det första infastningsorganet, dvs relativt stödorganet 12. Då begränsnings- organets 5 motsatta ände är fast relativt fjäderorganets 1 andra fastorgan 4, som i sin tur är fast relativt ytterramen 9, inses att någon ytterligare rörelse för stödorganet 12 relativt ytterramen inte kan ske.The engaging member 6 on the restraining member 5 is positioned to abut against a stop member which is fixed relative to the first fastening member, i.e. relative to the support member 12 when the capercaillie body 2 is pulled out. which in turn is fixed relative to the outer frame 9, it is realized that no further movement of the support member 12 relative to the outer frame can take place.

I fig 3 visas tjäderorganet 1 monterat mellan det första infastningsorganet 8 och det andra infästningsorganet 7. Då dessa punkter avlägsnas från varandra kommer tjäderkroppen 2 att sträckas ut till dess att ingreppsorganet 6 ingriper med infästningsorganet 8. Fjäderorganets maximala utdragslängd har då upp- ß 10 15 20 25 30 35 512 632 5 nåtts. I denna utföringsform har det första infästnirigsorganet 8 funktionen av stopporgan.Fig. 3 shows the capercaillie means 1 mounted between the first fastening means 8 and the second fastening means 7. When these points are removed from each other, the capercaillie body 2 will be extended until the engaging means 6 engages with the fastening means 8. The maximum extension length of the spring means is then raised. 20 25 30 35 512 632 5 reached. In this embodiment, the first fastening means 8 has the function of stopping means.

ALTERNATIVA UTFÖRINGSFORMER En alternativ utföringsform av fjäderorganet l' erhålles om begränsningsor- ganet 5 anordnas att löpa inuti fjäderkroppen 2. Denna utforingsforin visas i fig 4. Funktionen är väsentligen densamma, men denna utforingsforni kan vara att föredra i händelse av extrem utrymmesbrist. Fästorganet 4 kan, som visas i ñg 4, vara utformat som en krok genom att tillverkningsmaterialet är dubbelvikt i kroken. Ett annat altemativ är att utforma fastorganet 4 som en ögla. Det infastriingsorgan som är avsett att ingripa med fastorganet 4 kan i så fall behöva utformas annorlunda än om begränsningsorganet 5 hade legat utanför fjäderkroppen 2. Eftersom begränsningsorganet 5 inte kan träs genom ett hål i ett fastöra, kan infästriingsorganet 7 innefatta en krok eller ett fästöra, som beskrivits ovan, vari en slits är anordnad från örats kant till hålet. Slitsen kan vara antingen rak eller böjd. Även då begränsningsorganet 5 anordnas inuti fjäderkroppen 2, bör dessa två delar av fjäderorganet inte anligga mot varandra, för undvikande av missljud. Ett annat sätt att undvika missljud är att förse begränsningsorganet 5 med en gnisselreducerande ytbeläggning.ALTERNATIVE EMBODIMENTS An alternative embodiment of the spring member 1 'is obtained if the restraining member 5 is arranged to run inside the spring body 2. This embodiment is shown in Fig. 4. The function is essentially the same, but this embodiment may be preferable in case of extreme lack of space. The fastening member 4 can, as shown in ñg 4, be designed as a hook in that the manufacturing material is double folded in the hook. Another alternative is to design the fastening member 4 as a loop. The fastening means intended to engage with the fastening means 4 may in that case need to be designed differently than if the restraining means 5 had been outside the spring body 2. Since the restraining means 5 cannot be threaded through a hole in a fastening ear, the fastening means 7 may comprise a hook or a fastening ear. as described above, wherein a slit is provided from the edge of the ear to the hole. The slit can be either straight or curved. Even when the limiting member 5 is arranged inside the spring body 2, these two parts of the spring member should not abut each other, in order to avoid noise. Another way to avoid noise is to provide the restrictor 5 with a squeak-reducing surface coating.

Fästorganen 3, 4 och ingreppsorganet 6 kan ges olika utformning beroende på den omgivning vari fjädem 1 är avsedd att monteras. I de flesta fall mot- svarar fastorganens 3, 4 utformning den hos befintliga dragfjädrar, dvs de är utformade som krokar, vilka kan hakas i en motsvarande öppning eller ögla. I många fall kan även ingreppsorganet 6 vara en krok.The fastening means 3, 4 and the engaging means 6 can be given different designs depending on the environment in which the spring 1 is intended to be mounted. In most cases, the design of the fastening members 3, 4 corresponds to that of existing tension springs, ie they are designed as hooks, which can be hooked into a corresponding opening or loop. In many cases, the engaging member 6 can also be a hook.

I den i fig 2 och 3 visade utföringsforinen utgörs stopporganet av det första infästningsorganet 8, dvs samma infastningsorgan som det forsta fastorganet ingriper med.In the embodiment shown in Figures 2 and 3, the stop means is constituted by the first fastening means 8, i.e. the same fastening means with which the first fastening means engages.

Ett altemativ till att stopporganet och det första infastningsorganet 8 är iden- tiska är att låta ingreppsorganet 6 ingripa med något annat stopporgan, som är fast relativt infästningsorganet 8. Den maximala utdragslängden hos fjäder- organet kan på så sätt förändras jämfört med vad som ovan beskrivits. En kortare maximal utdragslängd erhålls exempelvis om det for ingreppsorganet 6 avsedda stopporganet är beläget bortom det infästningsorgan 8 med vilket fastorganet 3 ingriper. 10 512 632 6 Ytterligare alternativa utföringsformer kan erhållas om längden på begräns- ningsorganet 5 förändras.An alternative to the stop means and the first fastening means 8 being identical is to allow the engaging means 6 to engage with another stop means, which is fixed relative to the fastening means 8. The maximum extension length of the spring means can thus be changed compared with what has been described above. . A shorter maximum extension length is obtained, for example, if the stop means intended for the engaging member 6 is located beyond the fastening member 8 with which the fixed member 3 engages. 10 512 632 6 Additional alternative embodiments can be obtained if the length of the limiting member 5 is changed.

Ett annat alternativ är att utforma ingreppsorganet 6 på så sätt att det kan in- gripa med sj älva fjäderkroppen 2 i ett av dess ändpartier. Lämpligen sker detta genom ingrepp med det yttersta varvet i det skmvlinjefonnade partiet.Another alternative is to design the engaging member 6 in such a way that it can engage with the spring body 2 itself in one of its end portions. Preferably this is done by engaging the outermost turn in the diagonally formed portion.

En fördel är att inget yttre infästningsorgan krävs för ingreppsorganet 6, och det är därmed möjligt att spara plats. I detta alternativ utgör fjäderkroppens inre ändparti stopporganet.An advantage is that no external fastening means is required for the engaging means 6, and it is thus possible to save space. In this alternative, the inner end portion of the spring body constitutes the stop means.

Uppfinningen kan modifieras inom ramen för följande patentkrav.The invention can be modified within the scope of the following claims.

Claims (6)

10 15 20 25 30 35 512 632 7 PATENTKRAV10 15 20 25 30 35 512 632 7 PATENT REQUIREMENTS 1. l. Ryggstöd till ett fordonssäte, innefattande en yttre ram (9) och ett innanför den yttre ramen (9) beläget stödorgan (12), varvid det mellan ytter- ramen och stödorganet är anordnat ett antal fjäderorgan, som har en begrän- sad utdragslängd, k ä n n e t e c k n a t därav, att ett begränsningsorgan, som är tillverkat i ett stycke med en i vart och ett av fjäderorganen ingående dragtjäder, begränsar fjäderorganets utdragslängd.1. A backrest for a vehicle seat, comprising an outer frame (9) and a support member (12) located inside the outer frame (9), wherein a number of spring members are arranged between the outer frame and the support member, which have a limiting member. such a pull-out length, characterized in that a limiting member, which is made in one piece with a pulling cap included in each of the spring members, limits the pull-out length of the spring member. 2. Ryggstöd enligt kravet l, k ä n n e t e c k n at av, att den i vart och ett av fjäderorganen ingående dragfjädem har ett första (3) och ett andra (4) vid motsatta ändar av dragf] ädern belägna fästorgan och att begränsnings- organet (5) är försett med ingreppsorgan (6).Backrest according to claim 1, characterized in that the tension spring included in each of the spring means has a first (3) and a second (4) fastening means located at opposite ends of the tension spring and that the limiting means ( 5) is provided with engaging means (6). 3. Ryggstöd enligt laavet 1 eller 2, k ä n n e t e c k n a t därav, att ytterramen (9) och stödorganet (12) är försedda med infastningsorgan (7, 8) med vilka dragfiädems fästorgan (3, 4) och begränsningsorgan (5) är avsedda att ingripa.Backrest according to recess 1 or 2, characterized in that the outer frame (9) and the support member (12) are provided with fastening means (7, 8) by means of which the pulling means (3, 4) and restraining means (5) of the puller are intended to intervene. 4. Fjäderorgan med begränsad utdragslängd innefattande en dragfj äder med ett första (3) och ett andra (4), vid motsatta ändar av dragfjädern belägna fästorgan, och ett begränsningsorgan (5) för begränsning av dragfjäderns maximala utdragslängd, k ä n n e t e c k n at därav, att begränsningsorganet (5) sträcker sig från dragfiädems andra fästorgan (4) eller ett därmed fast förenat organ i längdriktningen för dragfiädern till ett område i närheten av ett första infästningsorgan (8), varmed dragfiäderns första fästorgan (3) samverkar, varvid begränsningsorganet (5) i sin fi-ia ände är försett med ett ingreppsorgan (6), vilket, vid utdragning av fjäderorganet, är anordnat att in- gripa med ett stopporgan som är fast relativt det första infastningsorganet (8).A spring member with a limited extension length comprising a tension spring with a first (3) and a second (4), fastening means located at opposite ends of the tension spring, and a limiting means (5) for limiting the maximum extension length of the tension spring, characterized therefrom, that the restricting means (5) extends from the second fastening means (4) of the pulling spring or a fixedly connected means in the longitudinal direction of the pulling spring to an area in the vicinity of a first fastening means (8), with which the first fastening means (3) of the pulling spring cooperate, ) at its fi- ia end is provided with an engaging member (6), which, when pulling out the spring member, is arranged to engage with a stop member which is fixed relative to the first fastening member (8). 5. Fjäderorgan enligt kravet 4, k ä n n e t e c k n at därav, att begräns- ningsorganet (5) är tillverkat i ett stycke med dragfjädern.Spring means according to claim 4, characterized in that the limiting means (5) is made in one piece with the tension spring. 6. Fjäderorgan enligt kravet 4 eller 5, k ä n n e t e c k n a t därav, att begränsningsorganet (5) har ett avstånd till ett i dragfjädem ingående skniv- linjeformat parti (2). l ll |'l I |'Ill llll' 'lflSpring means according to claim 4 or 5, characterized in that the limiting means (5) has a distance to a knife-line-shaped portion (2) included in the tension spring. l ll | 'l I |' Ill llll '' l fl
SE9801451A 1998-04-24 1998-04-24 Backrest with limited suspension and spring SE512632C2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE9801451A SE512632C2 (en) 1998-04-24 1998-04-24 Backrest with limited suspension and spring
AU42975/99A AU4297599A (en) 1998-04-24 1999-04-08 A back rest with limited resilience
EP99947030A EP1071576A1 (en) 1998-04-24 1999-04-08 A back rest with limited resilience
PCT/SE1999/000572 WO1999055553A1 (en) 1998-04-24 1999-04-08 A back rest with limited resilience

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9801451A SE512632C2 (en) 1998-04-24 1998-04-24 Backrest with limited suspension and spring

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SE9801451D0 SE9801451D0 (en) 1998-04-24
SE9801451L SE9801451L (en) 1999-10-25
SE512632C2 true SE512632C2 (en) 2000-04-10

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SE9801451A SE512632C2 (en) 1998-04-24 1998-04-24 Backrest with limited suspension and spring

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EP (1) EP1071576A1 (en)
AU (1) AU4297599A (en)
SE (1) SE512632C2 (en)
WO (1) WO1999055553A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2810594B1 (en) * 2000-06-27 2002-10-11 Cera SUPPORT STRUCTURE FOR VEHICLE SEAT BACKREST, ESPECIALLY AUTOMOTIVE
US7108038B2 (en) 2003-02-14 2006-09-19 Hunter Douglas Industries Bv Cord tensioner
DE10329852B4 (en) * 2003-07-02 2023-02-02 Fico Cables, Lda. seat structure
CA2485724C (en) 2003-10-24 2012-02-07 Hunter Douglas Industries B.V. Cord tensioner
US7114544B2 (en) 2004-09-07 2006-10-03 Hunter Douglas Inc. Cord tensioner for covering for architectural openings
DE102010016401B4 (en) * 2010-04-12 2013-01-17 Willy Weber Fabrik für Metallwaren techn. Federn, Inh. Holger Weber Spring block for tensile and compressive loads
TWI624633B (en) * 2017-03-03 2018-05-21 太陽光電能源科技股份有限公司 Solar generator apparatus with elastically restrictive and cable-controlled tracking
EP4316904A1 (en) * 2022-08-04 2024-02-07 B/E Aerospace, Inc. Helical connecting link and method for energy absorption using the same

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FR749497A (en) * 1932-02-06 1933-07-25 Improvements in the manufacture of tensile springs and product obtained
GB1391644A (en) * 1972-07-06 1975-04-23 Herzer K Hertzer Kurt Vehicle safety seat
DE3112050C2 (en) * 1981-03-24 1990-07-12 Rud-Kettenfabrik Rieger & Dietz Gmbh U. Co, 7080 Aalen "Spring buffer"
DE3836100A1 (en) * 1988-10-22 1990-04-26 Daimler Benz Ag Helical compression spring for installation in a pretensioned state
GB2283163A (en) * 1993-10-26 1995-05-03 Autoliv Dev "Improvements in or relating to a vehicle seat"

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SE9801451D0 (en) 1998-04-24
WO1999055553A1 (en) 1999-11-04
EP1071576A1 (en) 2001-01-31
AU4297599A (en) 1999-11-16
SE9801451L (en) 1999-10-25

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