SE454393B

SE454393B - Vehicle door mirror with warning device

Info

Publication number: SE454393B
Application number: SE8603646A
Authority: SE
Inventors: Goran Sjonell
Original assignee: Sjoenell Goeran
Priority date: 1986-08-29
Filing date: 1986-08-29
Publication date: 1988-04-25
Also published as: SE8603646L; SE8603646D0

Abstract

The rear mirror has a foot for fitting to the vehicle, and a mirror glass. The microphone is built into it, pref. at its outer free end so as to prevent as far as possible the pick-up of disturbing sound reflexes from the vehicle bodywork. Sound is picked up by the microphone only from a limited area in a well defined direction, the area being where another vehicle on approaching from the rear is in an oblique position in relation to the microphone. Such sound is of a frequency significant and common to vehicles circulating in every day traffic. The mirror incorporates a lamp fitted behind a red, transparent plastic plate bearing the text WARNING, located on the side of the mirror facing the rear of the vehicle, i.e. between the mirror glass and the vehicle and a near as possible to the driver to facilitate observation. A battery with associated current circuit connects the microphone to the lamp, so that the circuit incorporating the lamp is connected when the microphone is activated by sound from a vehicle approaching from the rear, causing the lamp to illuminate.

Description

10 15 20 25 30 35 40 454 393 t i I I 2 schemstiskt en backspegel i enlighet med uppfinningen sedd från sidan. Pig, 2 visar uppfinningen sedd schematiskt i snitt uppifrån och §ig¿_§ visar en annan utföringsform av uppfin- ningen. 10 15 20 25 30 35 40 454 393 t i I IN 2 schematically a rearview mirror in accordance with the invention seen from the side. Fig. 2 shows the invention seen schematically in section from above and §ig¿_§ shows another embodiment of the invention ningen.

X figurerna betecknar 1 en backspegel, innefattande en fot 2, för montering vid fordonet, samt ett spegelglas 3.The figures X denote 1 a rear-view mirror, comprising one foot 2, for mounting to the vehicle, and a mirror glass 3.

Denna bsckspegel kan vara av-i sig känd typ med lämplig, vedertagen form.This rear-view mirror can be a type known per se with a suitable, accepted form.

Enligt uppfinningen är en mikrofon 4 inbyggd i back- spegeln, lämpligen vid dennas yttre, fria ände, för att i möjligaste mån undvika störande ljudreflexer fràn den egna fordonsksrossen, vilka kan uppfattas av mikrofonen. Hikrofon- en 4 är på inom tekniken vedertaget sätt utformad att uppfatta ljud endast från ett begränsat område i en väl definierad riktning fràn mikrofonen. Underförstatt skall detta område utgöras av det område, i vilket ett annat fordon kommer att befinna sig när det ligger snett bakom det egna fordonet. Det avkända omradet definieras i figurerna av vinklarna u och B i vertikal- respektive horisontalriktningen. Det ljud som skall uppfattas av mikrofonen skall ha en frekvens, som är signifi- kativ och gemensam för de i trafiken förekommande fordonen.According to the invention, a microphone 4 is built into the back the mirror, preferably at its outer, free end, to i avoid disturbing sound reflexes from your own as much as possible vehicle rust, which can be perceived by the microphone. Microphone a 4 is in a manner accepted in the art designed to perceive sound only from a limited area in a well-defined direction from the microphone. Implied shall this area consists of the area in which another vehicle will be be when it is at an angle behind your own vehicle. The the sensed area is defined in the figures by the angles u and B i the vertical and horizontal directions, respectively. The sound that should perceived by the microphone shall have a frequency which is and common to the vehicles present in the traffic.

Andra ljudfrekvenser skall ej uppfattas av mikrofonen. Beck- epegeln 1 är vidare försedd med en ljuskälla i form av en lampa 5, vilken i det visade exemplet är inbyggd bakom en' exempelvis röd, genomskinlig plastskiva 6 med texten “VAR- NING“. Ljuskallan och den röda täckskivan befinner sig på den mot fordonet vända sidan av backspegeln 1, dvs. mellan spegel- glaeet 3 och fordonet (ej visat), dvs, sa nära föraren som möjligt, för att lätt kunna observeras.Other sound frequencies should not be perceived by the microphone. Pitch- epegeln 1 is further provided with a light source in the form of a lamp 5, which in the example shown is built behind a ' for example red, transparent plastic sheet 6 with the text “VAR- NING “. The candle head and the red cover plate are on it facing the vehicle side of the rearview mirror 1, ie. between mirror glaeet 3 and the vehicle (not shown), ie, said near the driver as possible, for easy observation.

En strömkälla 7 (batteri) och en på lämpligt sätt upp- byggd strömkrets sammankopplar mikrofonen 4 med lampan 5, så att etrömkretsen innehållande lampan uppkopplae när mikrofonen aktiveras av ljudet från ett snett bakom det egna fordonet liggande andra fordon. Härvid kommer lampan S att lysa.A power source 7 (battery) and an appropriately built circuit connects the microphone 4 with the lamp 5, so that the circuit containing the lamp connects when the microphone is activated by the sound of a crook behind your own vehicle lying other vehicles. In this case, the lamp S will light up.

I fig. 3 visas uppfinningen i form av en tillsats, huvudsakligen i form av en bygel 8, vara ekänklar griper om backspegeln 1. Bygelns yttre skänkel 9 upptar mikrofonen 4 och inre skànkel upptar lampan (ej visad) med den roda, genomskin- liga skivan 6. Tillsatsen innehåller vidare nämnda strömkálla och strömkrets (ej visat). Denna tillsats kan beroende pà 10 454 393 3 backapegelne 1 form anappaa faet vid denna, akruvaa faat eller limmas fast.Fig. 3 shows the invention in the form of an additive, mainly in the form of a jumper 8, be ankle grips rearview mirror 1. The outer leg 9 of the jumper occupies the microphone 4 and inner leg occupies the lamp (not shown) with the red, translucent The additive further contains said cabbage and circuit (not shown). This additive may depend on 10 454 393 3 backapegelne 1 form anappaa faet at this, akruvaa faat or glued.

Tilleataen kan naturligtvis även göras i exempelvis två delar, varvid dock dragningen av etrömkretsen försvaras med påföljande inverkan på drifteäkerheten.The tilleata can of course also be done in, for example, two parts, however, the traction of the one-circuit circuit is defended with subsequent impact on operational reliability.

Inom ramen för uppfinningen är det vidare möjligt att aom atrömkälla utnyttja fordonets normala strömkälla och är det vidare tänkbart att även anordna en ljudkålla inuti bilen, eventuellt kompletterad med en ytterligare ljuakälla monterad framför förarplatsen i fordonet. Vidare kan naturligtvis ljuekällan genom lämplig uppbyggnad av elektroniken görae blinkande, när den aktiveras av mikrofonen.Within the scope of the invention, it is further possible to aom source power utilize the vehicle's normal power source and is it is further conceivable to also arrange a sound source inside the car, possibly supplemented with an additional ljua source fitted in front of the driver 's seat in the vehicle. Furthermore, of course the source of light through the appropriate structure of the electronics do flashing, when activated by the microphone.

Claims

454 393 10 15 - <= '__' Eatggtkgav Exterior rear-view mirror with vehicle warning device, to at least optically call the driver's attention when a second vehicle is in a position obliquely behind the vehicle with the driver. characterized in that the rear-view mirror at its outer part, facing away from the vehicle, comprises a microphone tuned to pick up sound of a certain frequency, corresponding to the range of the sound frequency for vehicle engines, and with a well-defined sound recording direction substantially obliquely backwards outwards, and its inner, facing portion of the vehicle comprises a light source which illuminates when the microphone picks up the determined sound frequency in the defined direction and that in the rearview mirror is arranged an electronically known electronics for connecting the microphone to the lamp.