EP1596127A1 - Fixierung einer Torsionsfeder zwischen zwei Teilen eines Kraftfahrzeugscheinwerfers - Google Patents

Fixierung einer Torsionsfeder zwischen zwei Teilen eines Kraftfahrzeugscheinwerfers Download PDF

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Publication number
EP1596127A1
EP1596127A1 EP05290904A EP05290904A EP1596127A1 EP 1596127 A1 EP1596127 A1 EP 1596127A1 EP 05290904 A EP05290904 A EP 05290904A EP 05290904 A EP05290904 A EP 05290904A EP 1596127 A1 EP1596127 A1 EP 1596127A1
Authority
EP
European Patent Office
Prior art keywords
spring
support
support part
mobile
torsion
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.)
Granted
Application number
EP05290904A
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English (en)
French (fr)
Other versions
EP1596127B1 (de
Inventor
Alexandre Mensales
Benoit Lery
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.)
Valeo Vision SAS
Original Assignee
Valeo Vision SAS
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 Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP1596127A1 publication Critical patent/EP1596127A1/de
Application granted granted Critical
Publication of EP1596127B1 publication Critical patent/EP1596127B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • F21S41/689—Flaps, i.e. screens pivoting around one of their edges

Definitions

  • the invention relates to the assembly of a torsion spring between a fixed part and a moving part of a lighting device and / or motor vehicle signaling.
  • Projectors may also have rotating optical modules, comprising by optical module at least the light source associated with its reflector. This is the case of turn-based projectors, which also known as DBL for Dynamic Bending Light ".
  • Projectors can also be designed to have movable reflectors, for example headlamps equipped with automatic correction of attitude.
  • a mobile screen projector in particular by pivoting, generally comprises a support piece fixed motor and a movable support part, the mobile support part being intended to tilt relative to the engine support part.
  • the support piece mobile supports at least one pivoting flap.
  • a movable support piece provided with the pivoting flap is intended to switch between a first position, said active position, in which light signals emitted by a light source of the projector are intercepted by the pivoting flap and a second position, said position passive, in which the pivoting flap does not intercept the beams bright light source.
  • a torsion spring acting in the relative movement between the fixed part and the moving part is useful to have recourse to a torsion spring acting in the relative movement between the fixed part and the moving part. This is the case, for example, when the moving part is moved by a motor relative to a fixed part, and that a torsion spring is also provided between the two parts so that, in case of failure of the motor, the moving part, thanks to said spring, can rebase into a security position (for example, in a non-glare code position in the case of the bi-function cache mentioned above).
  • the invention aims to facilitate the mounting of projectors which have moving parts, especially those using springs.
  • it also aims to obtain such projectors that are compact, simple design and yet reliable, especially in level of movement of said moving parts.
  • the invention is more particularly intended for the field of vehicle projectors but could also apply in other areas.
  • the removable cover and the infrared filter are two particular examples of the pivoting flap equipping the devices projectors according to the invention.
  • the projectors concerned by the invention are all those that are likely to be equipped of a moving part, regardless of the function performed by said part, able to move from one position to another at least in the projector.
  • the first branch is moved by a second linear motion in the opposite direction of the first movement of the return to the initial position of the spring.
  • a transformation of linear movements in rotational movements may need to release a space to allow the first branch and the second branch to articulate one with respect to the other.
  • space is responsible for a the size of the projector.
  • the connecting means can be weakened following the linear movements and following the rotational movements repeating in time.
  • a torsion spring is also known to rotate the moving part relative to the engine support part by means of a DC motor and by via a torsion spring.
  • a torsion spring is formed of a central portion or body having a plurality of turns, a first end and a second end. The first end and the second end are placed on either side of the central part while extending this same central part.
  • the central part is positioned around a support means formed on the movable support piece and longitudinally with respect to an axis of this confused support means with an axis of extension of the same spring.
  • the first end and the second end are respectively placed against the piece mobile support and against the engine support part so as to maintain position activates the pivoting flap.
  • the motor is set to allow fold down the pivoting flap from the active position direction of the passive position, while possibly maintaining this passive position of the pivoting flap.
  • the spring allows the pivoting flap to return to its initial active position by simply folding the pivoting flap from the passive position towards the active position.
  • the mounting of the mobile support part in the support part motor can be complicated by the presence of this spring.
  • the torsion spring is placed between the two pieces with a torsion torque between the two ends of the spring which allows the same spring to keep the pivoting flap in the active position.
  • Such a torsion torque is obtained by rotating around the axis of elongation of the spring one of ends with respect to each other in a winding direction the turns of the central part of the spring.
  • the step of wrapping one of the two ends around the lengthening axis of the spring is called a step of pre-armature of the spring which leads to a torsion torque predetermined spring between the two ends. This torsion torque is greater than that required for a spring placed against the piece mobile support and against the engine support part.
  • Such a torsion torque of the necessary spring between the movable support part and the engine support part corresponds to a sufficient torque to maintain permanently the pivoting shutter in active position.
  • An operator responsible for mounting the device a projector equipped with such a pivoting torsion spring flap must therefore use specific tools able to maintain such a spring while creating twisting force by winding one of the two ends as previously described, the time required to embed the support piece mobile in the engine support part.
  • a projector device equipped with a movable support piece provided a pre-positioning pin of the torsion spring.
  • the invention also proposes a shoulder formed by the engine support part.
  • the pre-positioning pin is formed by the movable support piece to a place near the light source compared to another place formed by the shoulder against which is intended to rest the torsion spring in the engine support part, longitudinally with respect to an axis horizontal propagation of the light beam from a rear part in direction of a front part of the projector device.
  • one of the two ends of the torsion spring is positioned in abutment against the movable support piece and the other end is previously positioned in support also against the support piece mobile. More precisely, the other end is placed in support against the pre-positioning pin after winding of this same end according to the winding direction of the turns of the central part.
  • a step of pre-arming the torsion spring is released from the lug to come to rest against the shoulder formed by the support piece engine.
  • the invention thus allows the operator (or the robot if the operation assembly is automated) to be able to assemble the part more easily mobile to the fixed part via the spring, with a correct arming and simultaneous spring, thanks to this prior pre-weave step.
  • the moving part comprises a pre-winding pin against which rests one of the ends of the spring during assembly.
  • the operator or the machine can pre-arm the spring with respect to a single piece, which is easily achievable.
  • the pre-wrap pin has at least one chamfered area. This chamfered area allows to guide the end of the spring to fix on the pin, so as to facilitate / guarantee correct positioning.
  • the moving part also comprises a pin functional having at least one stop.
  • a pin functional having at least one stop we understand by ergot "Functional" the lug that will hold the other end of the spring as well in the pre-arming phase only in the assembled and finished projector, as opposed to the pre-wrap pin which, once assembly is complete, has more function in the finished projector.
  • the moving part comprises a support means of the spring body having a cylinder portion projecting and provided retaining means of the spring body after arming.
  • These means of retentions are for example in the form of a collar, or one or several stops arranged radially at the edge or near the edge outside the cylinder portion.
  • the unreinforced spring body preferably has a diameter greater than the apparent diameter of the cylinder portion in the area where the retaining means of the collar or abutment type are arranged, and a diameter less than said apparent diameter once it is armed.
  • Appent diameter the diameter of the virtual circle in the area provided with restraining means and which passes through the edges most radially away from the cylinder body of said stop means (s) or collar.
  • the actual diameter of the cylinder is chosen similar to the diameter of the body of the armed spring.
  • the spring according to the invention allows a movement relative to a moving part chosen from a pivoting cover, a filter of type infra-red filter, a reflector, an optical module, and a fixed part of type support part.
  • the invention also relates to a lighting device and / or signaling for a motor vehicle, of the projector type, comprising at least minus a fixed part relative to a moving part, and a torsion spring one of the ends of the spring is held on the moving part by a functional pin with at least one stop and the other end of which is maintained at the fixed part, the body of the spring being held by a means support having a cylinder portion projecting and provided with retaining means of the spring body.
  • the said moving part can to understand the pre-amarge pin and the retaining means described more high.
  • the subject of the invention is also the vehicle comprising one less of these devices.
  • the invention advantageously makes it possible to dispose the spring of torsion on the mobile support part before assembly of the part movable support in the engine support part in a fixed manner, without play, of have a mobile support piece equipped with the torsion spring without risking to lose the torsion spring by sliding the spring along the means of support.
  • the invention also makes it possible to store very easily such a movable support member provided with the torsion spring.
  • the support means around which is placed the central part of the spring forms a stop collar, continuous or discontinuous.
  • This stop collar advantageously allows prevent the spring from escaping from the support means after one of the two ends have been wound around the axis of elongation of the spring as previously mentioned.
  • the invention advantageously makes it possible to pre-arm the spring of twist directly on the moving support piece without the torsion spring is likely to escape from that same room.
  • FIG. 1 illustrates a projector device 1 with a pivoting shutter comprising a light source 2, a fixed engine support part 3, a piece of mobile support 4, and a torsion spring 5, according to the invention.
  • the light source 2 produces a light beam emitted at of a rear portion 6 towards a front portion 7 of the device along of a horizontal axis 23 of propagation of the light beam, the front part 7 being opposed to the rear portion 6.
  • This horizontal axis 23 forms a direction main lighting device projector.
  • Figure 2 and Figure 3 respectively illustrate a support part motor 3 and a movable support part 4.
  • Each of these parts 3 and 4 may to be performed following a molding of a plastic material.
  • each these parts 3 and 4 can be made of a metallic material.
  • the fixed engine support part 3 is provided with a motor (no represent). This motor is intended to drive in rotation a pinion of motor output (not shown).
  • the mobile support part 4 is formed of a frame 8.
  • This armature 8 is intended to carry at least one pivoting flap (not shown).
  • This armature 8 is intended to also support a toothed wheel 9.
  • This toothed wheel 9 forms a gear with the motor gear while causing a tilting of the mobile support part 4 with respect to the motor support part 3.
  • the mobile support part 4 tilts with respect to the engine support part 3 from an active position in which the shutter intercepts at least a portion of the light beam emitted by the source luminous 2 to a passive position where the same shutter does not intercept the light beam. Tilting of the mobile support part 4 by relative to the engine support part is represented by an arrow figure 1. This tilting takes place around a 30 axis of rotation.
  • FIG. 4 illustrates a schematic representation of the spring of torsion 5 according to the invention.
  • a spring 5 comprises a central portion 10, a first end 11 and a second end 12.
  • the central portion 10 is formed by a plurality of turns 13 wound around an axis 14 extension of the spring 5.
  • the spring is positioned on the support piece mobile with its first end 11 bearing against the support piece mobile 4 and its central portion 10 placed around a support means 26, 27 formed by the movable support piece and along the lengthening axis 14 of the spring.
  • the second end 12 is intended to be placed in abutment against the engine support part 3.
  • This torsion spring 5 is thus placed between the motor support part 3 and the mobile support part 4 in such a way that the spring plays a role of return spring now permanently the piece mobile support 4 according to the active position.
  • the engine support part 3 comprises a shoulder 15 of the spring 5 and the movable support piece 4 comprises a pin of pre-positioning 16 of the spring, Figures 1, 2, 3 and 5.
  • the prepositioning pin 16 allows the second end 12 of the mainspring to be placed in support against the same lug 16 prior to insertion of the mobile support part in the engine support part.
  • the piece mobile support 4 fits into the engine support part 4 in such a way that the second end 12 of the spring is placed in abutment against the shoulder 15.
  • the movable support piece is inserted in such a way that the mobile support piece has the pre-positioning pin 16 placed at a near the light source 2 with respect to the horizontal axis 23 of propagation, the shoulder 15 being placed relative to the prepositioning pin 16 and with respect to that same horizontal axis 23 at one place away from the light source 2, Figures 2, 3 and 5.
  • the shoulder 15 is formed by the engine support part 3, FIGS. 5.
  • Figure 5 shows an enlargement of a location of the support part motor 3 where is positioned the torsion spring 5 of the projector device 1 according to the invention.
  • the engine support part 3 forms a housing with a wall peripheral 17 and a bottom 18, the peripheral wall 17 and the bottom 18 delimiting a cavity 19.
  • the bottom 18 forms a plane perpendicular to a plane formed by the peripheral wall 19.
  • This engine support part 3 comprises a housing 20 to accommodate the engine, obviously a 21 intended for receiving the toothed wheel 9.
  • the fixed support part 3 may comprise a receptacle 22 intended specifically to receive an electronic card (no shown) connected to the motor to control its start.
  • the shoulder 15 is formed at a location on the peripheral wall 17 of the engine support part 3, FIGS. 2 and 5. This shoulder 15 corresponds to a protrusion extending from the wall 17 towards the cavity 19 of the engine support part 3. This shoulder 15 forms a first surface 24 against which rests the second end 12 of the spring. This first surface 24 forms a bearing surface of the second end 12 of the spring 5 and is represented by a speckled surface figure 5.
  • the pre-positioning pin 16 is formed from the frame 8 of the mobile support part 4, FIGS. 3 and 5.
  • the lug 16 forms a projection extending from the armature 8 perpendicular to the axis horizontal 23 of propagation of the light beam and parallel by relative to the plane formed by the bottom 18 of the engine support part 3.
  • the ergot pre-positioning 16 forms a second bearing surface against which supports the second end 12 of the spring prior to the insertion of the mobile support part 4 into the engine support part 3.
  • the first surface 24 and the second surface 25 are placed respectively in a foreground and in a second plane, the foreground and the second plane being perpendicular to the horizontal axis 23 of propagation.
  • the foreground is away from light source 2 and the second plane is close to this same light source 2.
  • the mobile support part 4 is fixed to the engine support part 3 by via a first rod 26 and via a second 27.
  • One of the two rods forms a center of the toothed wheel 9.
  • the first rod 26 and the second rod 27 are intended to be placed in retention means 28 and 29 formed by the engine support part 4. These means of retention may be elastic opening meatus as Figure 2.
  • This axis of rotation 30 may be perpendicular to the axis horizontal 23 and parallel to the plane formed by the bottom 18 of the support piece motor 3, as shown in FIG. 1. Or this axis of rotation 30 can be parallel or oblique to the horizontal axis 23.
  • Tilting of the mobile support part 4 towards the passive position and the tilting of this same mobile support piece into direction of the active position are stopped by respectively supporting a front stop 31 and a rear stop 32 against the engine support part 3.
  • the movable support piece has a stop before 31 and a backstop 32.
  • Front stop 31 is placed at a point in the room mobile support 4 remote from the light source 2 with respect to another where the backstop 32 is formed on the same movable support part 4.
  • the mobile support part 4 can then be positioned according to a position active predetermined while bearing against the engine support part 3 through the backstop 32.
  • the movable support part 4 can also be positioned according to a predetermined passive position while being in abutment against the engine support part via the abutment before 31.
  • the frame 8 forms a frame which is placed in a plane perpendicular to the horizontal axis 23 in the active position of the shutter and which is placed in another plane parallel to the horizontal axis 23 in position passive of the same component.
  • the support means 26, 27 around which the central portion is inserted 10 of the torsion spring 5 can form a cylindrical protrusion, FIG.
  • This support means may be formed by one or the other rods 26 or 27.
  • the first rod 26 preferentially forms the spring support means while the second rod 27 forms a center of the toothed wheel 9.
  • This support means may advantageously comprise a stop flange 37 defining a first diameter 38 of the outgrowth at a location where the flange 37 is formed greater than a second diameter 39 formed by the central portion 10 of the spring when the second end 12 of the spring is placed in abutment against the prepositioning pin 16 and / or when the second end 12 of the spring is placed in abutment against the shoulder 15.
  • This second diameter 39 is greater than a third diameter 40 formed by the rest of the support means.
  • the first end 11 and the second end 12 may form respectively a first loop 33 and a second loop 34, FIG.
  • the first loop 33 is intended to encircle a lug 35 formed by the movable support part 4, FIG. 7.
  • the second loop 34 can be intended to be housed in a hole 36 formed through the shoulder 15, FIG. 5.
  • the shoulder 15 can be pierced with an orifice 36, FIGS. 5, 8.
  • Figure 8 shows a schematic view of the engine support part projector device 1 side view and external view.
  • the orifice 36 passes through less partially the wall 17 from the cavity 19 towards the outside the engine support part. In the case where this orifice 36 passes through completely the wall 7, as illustrated in FIGS.
  • FIG. 1 illustrates a projector device 1 in which the shutter swivel forms a removable cover to allow for a projector low beam / high beam.
  • This cache is then placed in a framework forming a frame as shown in Figures 1 and 3.
  • the projector device could form a pivoting flap forming a filter infrared.
  • the armature can form a plate 41 folded on itself to form a bar extending between the two rods with cross section a U-shaped, as shown in Figure 9.
  • a motor vehicle can be easily and advantageously equipped with such a projector device according to the invention.
  • the method of mounting the flap projector device according to the invention can be realized as follows. First, the part center 10 of the spring 5 is installed on the support means 26 of the workpiece mobile support 4. More precisely, the central part 10 of the spring is placed around the first rod 26. Then the first end 11 of the spring is placed against the movable support part 4. To place this first end 11, we place the first loop 33 around the pin 35. Then, a rotational movement of the second end 12 around the first rod 26 is made in a winding direction of the turns of the part central 10. This rotational movement of the second end 12 around of the first rod 26 is represented by an arrow Figure 4.
  • the mobile support part 4 thus provided with the spring 5 is inserted in the engine support part 3 by inserting the first rod 26 and the second rod 27 in the corresponding meatus formed in the room 3.
  • the mobile support part is more precisely inserted in the engine support part in such a way that the pivoting flap switches between the active position and the passive position around the axis of rotation 30.
  • the second end 12 of the spring 5 When inserting the mobile support part 4 into the support part motor 3, the second end 12 of the spring 5 is first placed in support against the second surface 25 formed by the pre-positioning pin 16. Then this second end 12 is placed in abutment against the first surface 24 formed by the shoulder 15 during the insertion of the first rod 26 and the second rod 27 of the mobile support part 4 in the meatus 28 and 29 corresponding formed by the engine support part 3.
  • the lug 16 is positioned relative to the shoulder 15 in such a way that the lug allows the second end 12 of the spring to free itself from the second support surface 25 to bear against the first surface 24.
  • the spring thus positioned between the movable support part and the engine support part constantly reminds the pivoting flap according to the active position.
  • the mobile support part 4 is advantageously reversibly inserted in the engine support part 3.
  • the projector device 1 is then advantageously reversibly removable.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
EP05290904A 2004-04-27 2005-04-22 Fixierung einer Torsionsfeder zwischen zwei Teilen eines Kraftfahrzeugscheinwerfers Not-in-force EP1596127B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0404472 2004-04-27
FR0404472A FR2869273B1 (fr) 2004-04-27 2004-04-27 Assemblage d'un ressort de torsion entre une piece fixe et une piece mobile d'un dispositif d'eclairage et/ou de signalisation de vehicule automobile

Publications (2)

Publication Number Publication Date
EP1596127A1 true EP1596127A1 (de) 2005-11-16
EP1596127B1 EP1596127B1 (de) 2009-10-28

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EP05290904A Not-in-force EP1596127B1 (de) 2004-04-27 2005-04-22 Fixierung einer Torsionsfeder zwischen zwei Teilen eines Kraftfahrzeugscheinwerfers

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EP (1) EP1596127B1 (de)
AT (1) ATE447140T1 (de)
DE (1) DE602005017327D1 (de)
FR (1) FR2869273B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1867917A1 (de) * 2006-06-15 2007-12-19 Valeo Vision Optisches Modul für einen Scheinwerfer, insbesondere für Kraftfahrzeuge
EP2154425A3 (de) * 2008-08-08 2010-08-18 Koito Manufacturing Co., Ltd. Fahrzeugscheinwerfer
FR2979595A1 (fr) * 2011-09-07 2013-03-08 Valeo Vision Module optique pour projecteur de vehicule automobile

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2913094B1 (fr) 2007-02-22 2009-05-15 Valeo Vision Sa Projecteur pour vehicule automobile.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2611081A1 (fr) * 1987-01-13 1988-08-19 Gen Electric Montage de barreau de disjoncteur en boitier moule
FR2799816A1 (fr) * 1999-10-19 2001-04-20 Valeo Vision Projecteur de vehicule a occulteur mobile
FR2840391A1 (fr) * 2002-05-21 2003-12-05 Automotive Lighting Reutlingen Bloc optique pour projecteur de vehicule automobile

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2611081A1 (fr) * 1987-01-13 1988-08-19 Gen Electric Montage de barreau de disjoncteur en boitier moule
FR2799816A1 (fr) * 1999-10-19 2001-04-20 Valeo Vision Projecteur de vehicule a occulteur mobile
FR2840391A1 (fr) * 2002-05-21 2003-12-05 Automotive Lighting Reutlingen Bloc optique pour projecteur de vehicule automobile

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1867917A1 (de) * 2006-06-15 2007-12-19 Valeo Vision Optisches Modul für einen Scheinwerfer, insbesondere für Kraftfahrzeuge
FR2902499A1 (fr) * 2006-06-15 2007-12-21 Valeo Vision Sa Module optique pour un projecteur destine notamment a un vehicule automobile.
CN101089459B (zh) * 2006-06-15 2012-08-29 法雷奥视觉公司 用于机动车的照射灯用光学模块、具有这样的光学模块的照射灯和具有这种照射灯的机动车
EP2154425A3 (de) * 2008-08-08 2010-08-18 Koito Manufacturing Co., Ltd. Fahrzeugscheinwerfer
FR2979595A1 (fr) * 2011-09-07 2013-03-08 Valeo Vision Module optique pour projecteur de vehicule automobile
EP2568210A1 (de) * 2011-09-07 2013-03-13 Valeo Vision Optisches Modul für Kraftfahrzeugscheinwerfer
WO2013034680A1 (fr) * 2011-09-07 2013-03-14 Valeo Vision Module optique pour projecteur de véhicule automobile
CN103906969A (zh) * 2011-09-07 2014-07-02 法雷奥照明公司 用于机动车辆前照灯的光学模块

Also Published As

Publication number Publication date
FR2869273A1 (fr) 2005-10-28
FR2869273B1 (fr) 2006-08-04
ATE447140T1 (de) 2009-11-15
DE602005017327D1 (de) 2009-12-10
EP1596127B1 (de) 2009-10-28

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