DE2934283A1 - Safety belt harness with electrical sensor - has automatic device including electromagnetic unit to lock attachment by pawl catch when acceleration exceeds specified valve - Google Patents

Safety belt harness with electrical sensor - has automatic device including electromagnetic unit to lock attachment by pawl catch when acceleration exceeds specified valve

Info

Publication number
DE2934283A1
DE2934283A1 DE19792934283 DE2934283A DE2934283A1 DE 2934283 A1 DE2934283 A1 DE 2934283A1 DE 19792934283 DE19792934283 DE 19792934283 DE 2934283 A DE2934283 A DE 2934283A DE 2934283 A1 DE2934283 A1 DE 2934283A1
Authority
DE
Germany
Prior art keywords
pawl
safety belt
electromagnetic unit
device including
acceleration exceeds
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.)
Ceased
Application number
DE19792934283
Other languages
German (de)
Inventor
Günter 8080 Emmering Tibbe
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.)
Kolb GmbH and Co
Original Assignee
Kolb GmbH and Co
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 Kolb GmbH and Co filed Critical Kolb GmbH and Co
Priority to DE19792934283 priority Critical patent/DE2934283A1/en
Publication of DE2934283A1 publication Critical patent/DE2934283A1/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/34—Belt retractors, e.g. reels
    • B60R22/343—Belt retractors, e.g. reels with electrically actuated locking means

Abstract

The safety belt, esp. for a motor vehicle, has an electromagnetic locking device associated with a pawl catch. The electronic circuit includes a monoflop which produces an electric sensor signal when the acceleration exceeds a specified level (e.g. 0.4g) to prevent the harness catch from being disengaged when the accelerati on is excessive. The the termination of the period of excessive acceleration the monoflop or other device returns the lock to its initial setting so that the safety belt attachment may be released. The electromagnetic unit operates against the force of a mechanical soring.

Description

SICHERHEIT SGURTAUFWICKELVORRICHTUNG SAFETY BELT WINDING DEVICE

Die Erfindung bezieht sich auf eine Sicherheitsgurtaufwickelvorrichtung der im Oberbegriff des Anspruches angegebenen Art.The invention relates to a seat belt retractor of the type specified in the preamble of the claim.

Sicherheitsgurtaufwickelvorrichtungen, bei denen der Verriegelungsimpuls von einem elektrischen Sensor gegeben wird, sind seit längerem, unter anderem aus der DE-OS 24 21 533, bekannt, da diese Anordnungen den Vorteil haben, daß man nur einen zentralen Sensor benötigt und die jeweiligen Aufwickelvorrichtungen in jeder beliebigen Winkellage eingebaut werden können.Seat belt retractors in which the locking pulse given by an electrical sensor have long been off, among other things DE-OS 24 21 533, known, since these arrangements have the advantage that you only requires a central sensor and the respective winders in each can be installed in any angular position.

Im Allgemeinen sind die elektrischen Kontakte des Sensors während des Betriebes des Fahrzeuges geschlossen. Dies hat zur Folge, daß der angeschlossene Elektromagnet die Sperrklinke gegen die Kraft einer Feder aus ihrer Verriegelungsstellung heraus bewegt. Kommt es nun infolge starken Bremsens oder einer schlechten Wegstrecke zu einer Beschleunigung des Fahrzeuges über 0, 4 g, so wird der Strom zum Elektromagneten unterbrochen, dieser fällt ab und die Feder drückt die Sperrklinke in ihre Verriegelungsstellung.In general, the electrical contacts of the sensor are during the operation of the vehicle is closed. As a result, the connected Electromagnet pulls the pawl out of its locked position against the force of a spring moved out. If it comes as a result of heavy braking or a bad road If the vehicle accelerates over 0.4 g, the current becomes the electromagnet interrupted, this falls off and the spring pushes the pawl into its locking position.

Wechselt nun die Polarität der Beschleunigung sehr schnell, was bei unebener Fahrbahn leicht geschieht, so kommt es infolge des damit verbundenen schnellen Ein- und Aussteuerns der Sperrklinke zu erheblicher Geräuschbelästigung und einem unnötigen Verschleiß der Bauteile.Now changes the polarity of the acceleration very quickly, what at uneven road surface happens easily, it happens as a result of the associated fast Engaging and disengaging the pawl to considerable noise nuisance and a unnecessary wear of the components.

Die Erfindung will diesem Mangel mit der im kennzeichnenden Teil des Anspruchs angegebenen MaRnahm e begegnen.The invention aims to address this deficiency in the characterizing part of the Counteract the measure specified.

Bei dem elektronischen Bauteil kann es sich zum Beispiel um ein Monoflop handeln. Die schnelle und sichere Verriegelung ist auch weiterhin gegeben, da in jedem Falle das erste Signal des Sensors zum Verriegeln führt. Die Geräuschentwicklung und der Bauteilverschleiß sind jedoch erheblich vermindert, weil die Entriegelung der Sperrklinke nur dann erfolgt, wenn im Augenblick, in dem das elektronische Bauteil auf Durchgang geschaltet ist, keine Beschleunigung auf das Fahrzeug einwirkt.The electronic component can be a monoflop, for example Act. The fast and safe locking is still given, since in in each case the first signal from the sensor leads to locking. The noise development and the component wear are, however, significantly reduced because the unlocking the pawl only takes place when at the moment the electronic component is switched to continuity, there is no acceleration acting on the vehicle.

Das bedeutet also, hält die Beschleunigung des Fahrzeuges weiterhin an, so bleibt die Sperrklinke im Eingriff und somit der Schutz des Sicherheitsgurtes voll erhalten.This means that the vehicle continues to accelerate on, the pawl remains engaged and thus the protection of the seat belt fully received.

Claims (1)

PATENTANSPRUCH Elektrisch betätigte Sicherheits gurtaufwickelvorrichtung mit einer Wickelwelle und einer ihr zugeordneten Verriegelungseinrichtung sowie einer Sperrklinke, die die Abwickelbewegung des Gurtbandes direkt oder indirekt verhindert und einer der Sperrklinke zugeordneten elektromagnetischen Einrichtung, die die Sperrklinke aus der Verriegelungs- in die Entriegelungsstellung bewegt, wobei die elektromagnetische Einrichtung ihr Betätigungssignal von einem auf die Beschleunigung des Fahrzeuges ansprechenden Sensor erhält, dadurch gekennzeichnet, daß Mittel, vorzugsweise elektronische Bauteile, vorgesehen sind, die das erste eingehende Sensorsignal passieren lassen und den sich an der Sperrklinke einstellenden V erri egelungszustand während eines vorgegebenen, bestimmten Zeitraumes erhalten, indem sie weitere eingehende Signale unterdrücken und daß die Mittel nach Ablauf des vorgegebenen, bestimmten Zeitraumes den Zustand an der Sperrklinke einstellen, der für den augenblicklichen Fahrzustand des Fahrzeuges repräsentativ ist. PATENT CLAIM Electrically operated seat belt retractor with a winding shaft and a locking device assigned to it as well as a pawl that controls the unwinding movement of the webbing directly or indirectly prevented and one of the pawl associated electromagnetic device, which moves the pawl from the locking to the unlocking position, wherein the electromagnetic device its actuation signal from one to the Acceleration of the vehicle receives responsive sensor, characterized in that that means, preferably electronic components, are provided that the first Let incoming sensor signal pass and the setting on the pawl Obtained locked status during a specified, specific period of time, by suppressing further incoming signals and that the means after expiry set the status of the pawl within the specified, specific period of time, which is representative of the current driving condition of the vehicle.
DE19792934283 1979-08-24 1979-08-24 Safety belt harness with electrical sensor - has automatic device including electromagnetic unit to lock attachment by pawl catch when acceleration exceeds specified valve Ceased DE2934283A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792934283 DE2934283A1 (en) 1979-08-24 1979-08-24 Safety belt harness with electrical sensor - has automatic device including electromagnetic unit to lock attachment by pawl catch when acceleration exceeds specified valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792934283 DE2934283A1 (en) 1979-08-24 1979-08-24 Safety belt harness with electrical sensor - has automatic device including electromagnetic unit to lock attachment by pawl catch when acceleration exceeds specified valve

Publications (1)

Publication Number Publication Date
DE2934283A1 true DE2934283A1 (en) 1981-03-26

Family

ID=6079220

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792934283 Ceased DE2934283A1 (en) 1979-08-24 1979-08-24 Safety belt harness with electrical sensor - has automatic device including electromagnetic unit to lock attachment by pawl catch when acceleration exceeds specified valve

Country Status (1)

Country Link
DE (1) DE2934283A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2861672A1 (en) * 2003-11-04 2005-05-06 Trw Automotive Gmbh SENSITIVE DRIVING OF MOVEMENTS OF A VEHICLE, OF A SAFETY BELT REEL

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2861672A1 (en) * 2003-11-04 2005-05-06 Trw Automotive Gmbh SENSITIVE DRIVING OF MOVEMENTS OF A VEHICLE, OF A SAFETY BELT REEL

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8131 Rejection