DE29820236U1 - Pneumatic headrest to reduce impact forces - Google Patents

Pneumatic headrest to reduce impact forces

Info

Publication number
DE29820236U1
DE29820236U1 DE29820236U DE29820236U DE29820236U1 DE 29820236 U1 DE29820236 U1 DE 29820236U1 DE 29820236 U DE29820236 U DE 29820236U DE 29820236 U DE29820236 U DE 29820236U DE 29820236 U1 DE29820236 U1 DE 29820236U1
Authority
DE
Germany
Prior art keywords
headrest
hollow body
pneumatic
air
hollow
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
DE29820236U
Other languages
German (de)
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
Priority to DE29820236U priority Critical patent/DE29820236U1/en
Publication of DE29820236U1 publication Critical patent/DE29820236U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B60N2/50—Seat suspension devices
    • B60N2/52—Seat suspension devices using fluid means
    • B60N2/522—Seat suspension devices using fluid means characterised by dampening means
    • 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
    • B60N2/80—Head-rests
    • B60N2/806—Head-rests movable or adjustable
    • B60N2/865—Head-rests movable or adjustable providing a fore-and-aft movement with respect to the occupant's head
    • 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
    • B60N2/80—Head-rests
    • B60N2/888—Head-rests with arrangements for protecting against abnormal g-forces, e.g. by displacement of the head-rest
    • 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
    • B60N2/90—Details or parts not otherwise provided for
    • B60N2/914—Hydro-pneumatic adjustments of the shape

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Description

Blatt 3 Bezeichnung', Sheet 3 Designation ',

,Pneumatische Kopfstütze zur Minderung vonAufprallkräften,,Pneumatic headrest to reduce impact forces,

Ab jetzt bezeichnet mit PK (Pneumatische Kopfstütze] Beschreibung;From now on referred to as PK (Pneumatic Headrest] Description;

Kopfstützen herkömmlicher Bauart verursachen bei einem Aufschlag einen starken Rückprall.Headrests of conventional design cause a strong rebound in the event of an impact.

Der im Schutzanspuch angegebenen Erfindung liegt das Problem zugrunde,eine sicherere Kopfstütze zu schaffen,die den Auf- und Rückprall weites^ehend verhindern soll.The invention specified in the protection claim is based on the problem of creating a safer headrest which is intended to largely prevent impact and rebound.

Die PK beruht auf dem Prinzip des komprimierens und gleichzeitigen dosierten Abfliessens von Luft.The PK is based on the principle of compressing and simultaneously metering out air.

Die PK besteht aus zwei Teilen.Einen feststehenden (in der Rükkenlehne fest angebracht] und einen beweglichen vorderen Teil.The PK consists of two parts: a fixed part (fixed in the backrest) and a movable front part.

Die Verbindung wird durch die Pneumatik hergestellt. In dem hier beschriebenen Teil besteht die Pneumatik aus zwei ineinander verschiebaren zylinderischen Hohlkörpern. Die Hohlkörper sind an einem Ende geschlossen.Beide Hohlkörper werden mit den offenen Seiten ineinander gesteckt,sodass ein geschlossener Hohlkörper entsteht.Beide Hohlkörper müssen genau ineinander passen,damit sowenig Luft wie möglich durch den Zwischenraum entweichen kann.In einem Teil sind Luftaustrittslöcher eingebracht.The connection is made by pneumatics. In the part described here, the pneumatics consist of two cylindrical hollow bodies that slide into one another. The hollow bodies are closed at one end. Both hollow bodies are inserted into one another with the open sides so that a closed hollow body is created. Both hollow bodies must fit exactly into one another so that as little air as possible can escape through the gap. Air outlet holes are made in one part.

In diesem Beispiel ist der hintere Hohlzylinderteil festgesetzt, Der vordere Hohlzylinderteil dient als Aufprallteil und schiebt sich in den feststehenden Zylinderteil hinein. Im vorderen Teil sind Stifte mit Gewinde eingebracht die ein Verdrehen des vorderen beweglichen Teiles verhindern und gleich zeitig eine begrenzte Einstellung nach vorne ermöglichen.In this example, the rear hollow cylinder part is fixed. The front hollow cylinder part serves as the impact part and slides into the fixed cylinder part. In the front part, threaded pins are inserted which prevent the front movable part from twisting and at the same time allow a limited adjustment to the front.

Blatt Die Form der Hohlkörper kann verschieden sein.Leaf The shape of the hollow bodies can be different.

Wählt man z.B. eine ovale oder eine eckige Form,so wird ein Verdrehen automatisch verhindert.If you choose an oval or square shape, for example, twisting is automatically prevented.

Wirkungsweise :How it works:

Erfolgt ein starker Schlag auf den vorderen Aufprallteil,so wird die Luft schnell komprimiert,gleichzeitig tritt Luft dosiertIf there is a strong impact on the front impact part, the air is quickly compressed, at the same time air enters in a metered manner

durch die eingebrachten Luftaustrittslöcher aus.through the air outlet holes.

Dies bewirkt eine Abdämpfung des Aufschlages.This causes a dampening of the impact.

Die beiden Hohlzylinder schieben sich begrenzt ineinander.The two hollow cylinders slide into each other to a limited extent.

Im Innern des Hohlzylinders ist eine Druckfeder installiert, die den vorderen Aufprallteil wieder in die Ausgangsstellung zurückschiebt.A compression spring is installed inside the hollow cylinder, which pushes the front impact part back to its original position.

Da sich der Hohlzylinder ibewirkt durch die Druckfeder) nun durch die Luftaustrittslöcher wieder langsam vollsaugt wird der vordere bewegliche Teil der Kopfstütze wieder sehr langsam nach vorne bewegt und verhindert so einen starken Rückprall des Kopfes.Since the hollow cylinder (caused by the compression spring) now slowly fills up again through the air outlet holes, the front movable part of the headrest is moved forward again very slowly, thus preventing the head from rebounding too strongly.

BlattSheet

Zeichenerklährung für Blatt 6 u.Key to symbols for sheet 6 and 7.

1 Bewegliche Aufprallzone1 Movable impact zone

2 Führungsstift/ Einstellbolzen2 Guide pin/adjustment bolt

3 Beweglicher Hohlzylinder3 Movable hollow cylinder

4 Zwischenscheibe zur Verkürzung des Federweges4 Intermediate disc to shorten the spring travel

5 Luftaustrittslöcher5 air outlet holes

6 Feststehender Hohlzylinder6 Fixed hollow cylinder

7 ■■'. Druckfeder : ;; :,: '·■■ '■ ': :':·-;: ■;.■.;;· ...;■'.- -■ ._}■>' ■■■,... ;\V^,":';\ 8. Führungslänge 7 ■■'. Compression spring : ; ; : , : '·■■ '■ ' : : ':·-; : ■;.■.;;· ...;■'.- -■ ._}■>' ■■■,... ; \V^,":'; \ 8. Guide length

9 Kopfstutzenmetallbugel9 Headrest metal bracket

10 Befestigung am Metallbügel10 Fastening to the metal bracket

11 Verkleidungsmanschette11 Fairing sleeve

Claims (8)

Blatt 5 Schutzansprüche: Pneumatische Kopfstütze zur Minderung von Aufprallkräften, dadurch gekennzeichnet,dassSheet 5 Protection claims: Pneumatic headrest for reducing impact forces, characterized in that 1. einlzusammenschiebbarer, fester oder weicher Hohlkörper vorgesehen ist, in dem Luft komprimierbar ist und der Luftaustrittslöcher zum dosierten Luftabfluss aufweist.1. A collapsible, solid or soft hollow body is provided in which air is compressible and which has air outlet holes for controlled air discharge. 2. die Kopfstütze aus einem in der Rückenlehne feststehenden Teil und einen beweglichen Aufprallteil besteht.2. the headrest consists of a fixed part in the backrest and a movable impact part. 3. ein mit Luft gefüllter Hohlkörper die Verbindung beider Kopfstützenteile herstellt.3. a hollow body filled with air connects both headrest parts. 4. dieser Hohlkörper zusammenschiebbar oder zusammendrückbar4. this hollow body is collapsible or compressible ist.is. 5. dieser Hohlkörper aus festen oder weichen Materialien bestehen kann.5. this hollow body can be made of solid or soft materials. 6. inrdie Hohlkörper Druckfedern vorhanden sind.6. inrthe hollow body compression springs are present. 7. in die Hohlkörper Luftaustrittslöcher eingebracht sind.7. air outlet holes are provided in the hollow bodies. 8. die Hohlkörper verschiedene Formen haben können, frund, oval, eckig, usw.J8. the hollow bodies can have different shapes, round, oval, square, etc.
DE29820236U 1998-11-12 1998-11-12 Pneumatic headrest to reduce impact forces Expired - Lifetime DE29820236U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29820236U DE29820236U1 (en) 1998-11-12 1998-11-12 Pneumatic headrest to reduce impact forces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29820236U DE29820236U1 (en) 1998-11-12 1998-11-12 Pneumatic headrest to reduce impact forces

Publications (1)

Publication Number Publication Date
DE29820236U1 true DE29820236U1 (en) 1999-04-15

Family

ID=8065244

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29820236U Expired - Lifetime DE29820236U1 (en) 1998-11-12 1998-11-12 Pneumatic headrest to reduce impact forces

Country Status (1)

Country Link
DE (1) DE29820236U1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19951966A1 (en) * 1999-10-28 2001-05-03 Bayerische Motoren Werke Ag Headrest for vehicle seats is mounted on support pillars fitted into seat backrest and two pivot levers link headrest to cushion section to swing cushion from rest position to operating position
WO2002000465A1 (en) * 2000-06-27 2002-01-03 Stelzenmueller Wolfgang Safety seat
DE10033913A1 (en) * 2000-07-05 2002-01-17 Volkswagen Ag Headrest for vehicle seats
FR2843343A1 (en) * 2002-08-12 2004-02-13 Renault Sa Active head support for vehicle seat comprises rear fixed part connected to seat back and front part able to move frontward, under action of spring, in telescopic guide
WO2011032678A1 (en) * 2009-09-16 2011-03-24 Johnson Controls Gmbh Head restraint and vehicle seat

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19951966A1 (en) * 1999-10-28 2001-05-03 Bayerische Motoren Werke Ag Headrest for vehicle seats is mounted on support pillars fitted into seat backrest and two pivot levers link headrest to cushion section to swing cushion from rest position to operating position
DE19951966B4 (en) * 1999-10-28 2006-11-02 Bayerische Motoren Werke Ag Vehicle seat with a provided on the backrest or on the vehicle body headrest
WO2002000465A1 (en) * 2000-06-27 2002-01-03 Stelzenmueller Wolfgang Safety seat
DE10033913A1 (en) * 2000-07-05 2002-01-17 Volkswagen Ag Headrest for vehicle seats
DE10033913B4 (en) * 2000-07-05 2009-07-09 Volkswagen Ag Headrest for a vehicle seat, in particular for a motor vehicle seat
FR2843343A1 (en) * 2002-08-12 2004-02-13 Renault Sa Active head support for vehicle seat comprises rear fixed part connected to seat back and front part able to move frontward, under action of spring, in telescopic guide
WO2011032678A1 (en) * 2009-09-16 2011-03-24 Johnson Controls Gmbh Head restraint and vehicle seat
KR101354586B1 (en) 2009-09-16 2014-01-22 존슨 컨트롤스 게엠베하 Head restraint and vehicle seat
US8702168B2 (en) 2009-09-16 2014-04-22 Johnson Controls Technology Company Head restraint and vehicle seat
DE102010044248B4 (en) * 2009-09-16 2016-03-31 Johnson Controls Gmbh Headrest and vehicle seat

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Legal Events

Date Code Title Description
R086 Non-binding declaration of licensing interest
R207 Utility model specification

Effective date: 19990527

R156 Lapse of ip right after 3 years

Effective date: 20020702