EP0572496A1 - Lampe et systeme de fixation associe - Google Patents

Lampe et systeme de fixation associe

Info

Publication number
EP0572496A1
EP0572496A1 EP92905507A EP92905507A EP0572496A1 EP 0572496 A1 EP0572496 A1 EP 0572496A1 EP 92905507 A EP92905507 A EP 92905507A EP 92905507 A EP92905507 A EP 92905507A EP 0572496 A1 EP0572496 A1 EP 0572496A1
Authority
EP
European Patent Office
Prior art keywords
lamp
bracket
light emitting
switch
emitting diode
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
EP92905507A
Other languages
German (de)
English (en)
Inventor
Preben Bisgaard
Bjorn Bisgaard
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
Priority claimed from DK27791A external-priority patent/DK27791D0/da
Application filed by Individual filed Critical Individual
Publication of EP0572496A1 publication Critical patent/EP0572496A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/08—Devices for easy attachment to any desired place, e.g. clip, clamp, magnet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J6/00—Arrangement of optical signalling or lighting devices on cycles; Mounting or supporting thereof; Circuits therefor
    • B62J6/01—Electric circuits
    • B62J6/015—Electric circuits using electrical power not supplied by the cycle motor generator, e.g. using batteries or piezo elements

Definitions

  • the present invention concerns a novel lamp of the kind which in an detachable way may immediately be mounted on a bicycle, and a coopera- ting novel lamp bracket.
  • a light source to be used as a warning signal, preferably to be used as a rear light on a bicycle.
  • Said light source comprises at least one light emitting diode, an electronic circuit for generating current pulses to the light emitting diode and a current coupler.
  • the prior art light source comprises a housing with a plane face on which the light emitting diode is located.
  • the electronic circuit known from the accep ⁇ ted application mentioned is arranged so as to function at a frequency in the frequency range of about 24 Hz to 40 Hz.
  • the current coupler is constructed in such a way that the curcuit is switched on or switched off by a touch or a short-circuiting of at least two contact points located on the housing.
  • the light source disclosed in the accepted application is using dry cells as a source of current, though alternatively it is stated that the light source may function with a rechargeable battery or an accumulator.
  • the disadvantage of dry cells, rechargeable batteries and accumulators is partly selfdischarge, partly the discharge characteristic.
  • Danish accepted application No. 160,003 does not disclose any solution to the first-mentioned problem, but regarding the discharge characteristic said problem is remedied by incorporating in the electronic circuit a current control circuit for keeping the current in the pulses to the light emitting diode or diodes at a constant level .
  • 2,026,791 discloses a dynamo-l ghting system comprising at least one lamp and an AC generator for supplying current to the lamp and a current rectifier disposed between the generator and the lamp, in which dynamo-l ghting system the lamp is connected to the rectifier through a resistor, the lamp and the resistor form a first circuit, a rechargeable battery reserve is connected to the rectifier through a control switch, and the battery reserve and the control switch form a second circuit in parallel with the first one. It is stated that the switch may be a magnetically operated reed switch.
  • the dynamo-lighting system disclosed in this Bristish patent specification is, in the latter embodiment, pivotally connected with a magnet, and the dynamo-lighting system as well as the magnet p votally connected therewith are not of the type which may immediately be mounted in a detachable way on a bracket as is the case with the lamp according to the invention.
  • the mounting of the dynamo-lighting system and the magnet connected therewith demands a very exact adjustment in order that the battery reserve will function.
  • the dynamo-lighting system disclosed in published British patent application No. 2,026,791 suffers from the same disadvantages as all dynamo lamps, viz.
  • a novel bracket cooperating with the lamp according to the invention said bracket being of the kind which is mountable on a bicycle, and being made from or containing a permanent magnetic material.
  • the lamp according to the invention consists of far fewer parts than e.g. the lamp according to Danish patent specification No. 160,003 and has a service life which is at least a tenth power longer than the service life of the emergency lamp for use in mining according to published German patent application No. 3,834,554. Because of the novel design of the lamp according to the invention it has surprisingly been possible in relation to the prior art to reduce the weight and the size hereof obtaining at the same time a surprisingly high ratio between service life and weight.
  • the lamp according to the invention does not suffer from the prior art problems consisting in leakage from electric cells, functional problems as a result of climatic conditions, including cold and damp weather, decreasing battery voltage during use, self-discharge of the battery and/or unintentional use of battery capacity.
  • Fig. la is a perspective view of the lamp in unassembled form
  • Fig. lb is a perspective view of the lamp in assembled form
  • Fig. 2a is a top view of the lamp housing (1)
  • Fig. 2b is a bottom view of the lamp housing (1)
  • Fig. 3 is an axial section view of the lamp housing (1)
  • Fig. 4a is a top view of the electronic disc (2)
  • Fig. 4b is a bottom view of the electronic disc (2)
  • Fig. 5 is a perspective view of the lamp bracket in unassembled form
  • Fig. 6 is a view of the lamp bracket in assembled form mounted with the l mp.
  • a preferred embodiment of the lamp according to the present invention is shown in unassembled form.
  • the main components comprise a lamp housing (1), an electronic disc (2), a spring (3), and a lamp glass (4), preferable in the form of a reflector. From fig. la it is seen that a light emitting diode (5) is mounted on the electronic disc and that the disc (2) comprises an opening (6).
  • Fig. lb depicts the lamp from the same visual angle as in fig. la but in the assembled form. From fig. 2a it appears that the housing (1) internally at the bottom is provided with a guide pin (7) which by engagement with the opening (6) in the electronic disc (2) causes the disc (2) to be placed in an functionally correct way.
  • the spring (3) is arranged so as to retain the disc (2) against the interior bottom of the housing (1) and at the same time retain the lamp glass (4) against a non-depicted inwardly directed collar along the upper edge of the housing (1).
  • Fig. 2b depicts the housing (1) seen from the bottom which com ⁇ prises a recess (8).
  • Fig. 3 depicts an intersected housing (1) comprising the guide pin (7) and the recess (8).
  • the recess (8) is shaped in such a way that the bottom of the housing (1) protudes over the recess (8) along the edge thereof to form a collar which is arranged so as to be able to engage with cooperating grooves in the bracket.
  • Fig. 4a and 4b depict the electronic disc (2) seen from above and from below, respectively.
  • the first connection of the light emitting diode (5) is placed in contact with the first terminal of a lithium battery (10), and the second connection of the diode (5) is connected at (9) to the first connection of the magnet switch (11).
  • a second connection (12) of the magnet switch (11) is connected with the second terminal of the lithium battery (10).
  • Fig. 5 depicts a perspective view of a preferred embodiment of the lamp bracket in unassembled form.
  • the lamp bracket comprises a part (13) which through grooves (19), of which only one is shown, is adapted so as to engage with the recess (8) at the bottom of the lamp housing.
  • the bracket comprises a part (14) which is adapted so as to be retained to the part (13) with screws (15) in such a way that the parts (13) and (14) surround a tubular part of a bicycle, and through cooperating grooves (17) and (18) are retained in an essentially hori ⁇ zontal position.
  • the screws (15) which unite the parts (13) and (14) pass through openings (16a) and (16b).
  • bracket parts (13) and (14) in assembled form around a tubular part (20) of the bicycle.
  • the embodiment illustrated in fig. 1-4 of the lamp according to the invention is shown in a mounted position on the bracket part (13).
  • the part (13) of the lamp bracket is either provided with an built-in permanent magnet or is in itself formed of a magnetic material.
  • the lamp When the recess (8) of the lamp is engaged with the grooves (19) of the bracket part (13), the lamp is turned on by the activation of the magnet switch (11) whereby the current to the light emitting diode (5) is switched on. Conversely, the lamp is automatically turned off when it is removed from the bracket.
  • the lamp housing (1), the electronic disc (2) and bracket parts (13) and (14) are preferably formed in totally or partially transparent or non-transparent plastics which may be stained or unstained.
  • the lamp glass (4) is formed of transparent, unstained or stained preferably red colored plastics.
  • the magnet switch (11) is preferably a reed switch which is herme- tically enclosed in a glass or plastic tube.
  • the lithium battery (10) may e.g. be of the type RENATA CR 2430 with a terminal voltage of 3 V.
  • the light emitting diode (5) HIGH BRIGHT LED TU181 may be mentioned. In the embodiment shown a service life of about 400 hours is obtained. It will be appreciated by a person skilled in the art that diffe ⁇ rent variations of the above embodiment may be provided without diffe ⁇ ring from the scope of the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

Lampe (1) amovible du type pouvant être rapidement détachée, qu'on peut monter par simple fixation mécanique sur un support de lampe séparé (13, 14), qui peut être monté sur une bicyclette. Cette lampe (1) comprend un circuit électronique dans lequel au moins une diode électroluminescente est connectée à au moins une pile au lithium par un interrupteur qui peut être commandé par un aimant extérieur. Le support de lampe (13, 14) associé à la lampe (1) est fabriqué dans un matériau magnétique permanent ou dans un matériau qui peut être magnétisé en permanence, ou bien contient un matériau magnétique permanent.
EP92905507A 1991-02-18 1992-02-17 Lampe et systeme de fixation associe Ceased EP0572496A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DK27791A DK27791D0 (da) 1991-02-18 1991-02-18 Magnetisk kontaktoverfoersel for cykellys, samt brug af diode + lithiumbatteri for baglys ved magnetkontaktoverfoersel
DK277/91 1991-02-18
DK200/92 1992-02-17
DK020092A DK20092A (da) 1991-02-18 1992-02-17 Lygte og samhoerende lygteholder

Publications (1)

Publication Number Publication Date
EP0572496A1 true EP0572496A1 (fr) 1993-12-08

Family

ID=26063518

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92905507A Ceased EP0572496A1 (fr) 1991-02-18 1992-02-17 Lampe et systeme de fixation associe

Country Status (4)

Country Link
EP (1) EP0572496A1 (fr)
AU (1) AU1321092A (fr)
DK (1) DK20092A (fr)
WO (1) WO1992014644A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2821854A1 (de) * 1978-05-19 1979-11-29 Varta Batterie Fahrrad-beleuchtungsanlage
DK160003C (da) * 1987-10-06 1991-06-03 Basta Laasefab As Lysgiver til brug som advarselssignal
DE3834554A1 (de) * 1988-10-11 1990-04-12 Ruhrkohle Ag Notleuchte fuer grubenbetriebe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9214644A1 *

Also Published As

Publication number Publication date
AU1321092A (en) 1992-09-15
DK20092D0 (da) 1992-02-17
DK20092A (da) 1992-08-19
WO1992014644A1 (fr) 1992-09-03

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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17P Request for examination filed

Effective date: 19930901

AK Designated contracting states

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Effective date: 19931210

STAA Information on the status of an ep patent application or granted ep patent

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18R Application refused

Effective date: 19950818