EP0399419A2 - Interrupteur à rupture brusque en particulier interrupteur miniature - Google Patents

Interrupteur à rupture brusque en particulier interrupteur miniature Download PDF

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Publication number
EP0399419A2
EP0399419A2 EP90109559A EP90109559A EP0399419A2 EP 0399419 A2 EP0399419 A2 EP 0399419A2 EP 90109559 A EP90109559 A EP 90109559A EP 90109559 A EP90109559 A EP 90109559A EP 0399419 A2 EP0399419 A2 EP 0399419A2
Authority
EP
European Patent Office
Prior art keywords
switching
housing
spring
rocker
switch according
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
EP90109559A
Other languages
German (de)
English (en)
Other versions
EP0399419A3 (fr
EP0399419B1 (fr
Inventor
Siegfried Dipl.-Ing. Bär
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.)
Bar Elektrowerke & Co KG GmbH
Bar Elektrowerke GmbH and Co KG
Original Assignee
Bar Elektrowerke & Co KG GmbH
Bar Elektrowerke GmbH and Co KG
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 DE19893916763 external-priority patent/DE3916763A1/de
Priority claimed from DE9004499U external-priority patent/DE9004499U1/de
Application filed by Bar Elektrowerke & Co KG GmbH, Bar Elektrowerke GmbH and Co KG filed Critical Bar Elektrowerke & Co KG GmbH
Publication of EP0399419A2 publication Critical patent/EP0399419A2/fr
Publication of EP0399419A3 publication Critical patent/EP0399419A3/fr
Application granted granted Critical
Publication of EP0399419B1 publication Critical patent/EP0399419B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/04—Energy stored by deformation of elastic members
    • H01H5/06—Energy stored by deformation of elastic members by compression or extension of coil springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/60—Angularly-movable actuating part carrying no contacts
    • H01H19/62—Contacts actuated by radial cams
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/28—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button with three operating positions

Definitions

  • the invention relates to an electrical snap switch, in particular microswitch, with a housing which has fixed and movable contacts, with a switching rocker which takes the individual switching positions and is designed as a movable contact and which carries at one end two spaced-apart pivot axes around which the switching rocker is pivotally mounted on a holding bearing, with a switching spring engaging with one end on the switching rocker which pulls the switching rocker with its two pivot axes against the holding bearing designed as a fixed contact, and with a movable actuating member mounted in the housing and protruding from the housing in some areas, the one Area of the switch panels and when switching the switch transferred the rocker into its switching points, in this case the switching rocker can be pivoted from a central switching position in one pivoting direction about one pivot axis and in the other pivoting direction about the other pivot axis.
  • Such switches DE-GM 84 19 891 are often used because of their sudden switching and because of their multiple switch positions.
  • the disadvantage is that the switching spring was attached directly to the actuator, so that relatively large movements had to be carried out so that the switching rocker could be transferred to another switching position.
  • the actuator had to be particularly loaded with another spring so that the switch can be safely transferred to its individual switching positions. The actuator was then moved against the force of this second spring.
  • the object of the invention is to increase the field of application of the switch in a switch of the type mentioned, on the other hand, the switchover should take place safely, finally the switch spring itself should also exert a restoring force on the actuating member, the switch overall being a cheap construction as well as inexpensive manufacture.
  • the switch should have a small size. This is done according to the invention in that the switching spring is attached with its second end to the housing, that a central region of the switching spring is arranged between two projections of the actuating element, in this case the switching spring loads the actuating element via the projections in the reset direction to adjust the middle switching position of the switching rocker.
  • a relatively long switching spring can be used to switch the rocker arm, which ensures that the rocker arm is pulled firmly against the holding bearing and can be moved safely and suddenly in its individual switching positions can.
  • a central region of the switching spring is framed directly by regions of the actuator, the spring follows the actuator directly when the actuator is moved, as a result of which the spring is deflected and further tensioned, so that finally, when the switchover point is reached, a changeover suddenly occurs takes place.
  • the actuating element that moves the switching spring is designed as a sliding actuating element that protrudes from the housing with one or both ends as a handle.
  • This configuration results in a simple construction of the switch, since the switching rocker can be moved by hand in both directions by means of the slide-like actuating element, and it automatically returns to its central position after the actuating element has been released.
  • the handle with actuator can either be pulled out or pushed in to the Switching the shift rocker from the middle position or operating from two sides of the housing.
  • the actuating element which moves the switching spring is designed as an actuating element which is rotatably mounted on the housing between the switching positions and which projects at least with its handle from the housing.
  • the fact that the actuator itself is rotatably mounted on the housing ensures an accurate and safe movement of the actuator.
  • the area of application of the switch can be further increased by the actuator, since the actuator can be controllable via a shift drum.
  • the shift rocker arm has two cutting edge bearings, which are parallel and spaced apart from one another and which act on the holding bearing.
  • the two cutting edge bearings enable the swivel axes to be formed in a simple manner, and moreover a safe switching around both swivel axes is possible.
  • the rocker arm be constructed as a folding contact, which has the contacts in the folding area and whose folding ends forming the pivot axes are angled at an acute angle in opposite directions. This measure allows the shift rocker with its two pivot axes to be produced in a simple manner, the two pivot axes being able to be produced in a simple manner by the two bends.
  • the shift rocker is constructed in the form of an isosceles triangle in a transverse view.
  • the main tip of the isosceles triangle carries the contacts, while the other two tips each form a pivot axis.
  • a switching rocker is produced in a simple manner, which has two switching axes, but is nevertheless cheap to manufacture.
  • the switching rocker made of sheet material is U-shaped.
  • Her two legs forming the two pivot axes are divided into two areas by a slot, which are angled towards different sides.
  • a simple plate-shaped material is required, in which two pivot axes spaced apart from one another can be formed by the bend.
  • a channel-like depression is provided in the region of the two pivot axes of the switching rocker on the holding bearing.
  • the channel width corresponds to the distance between the two swivel axes.
  • the force line of the switching spring lying perpendicular to the pivot axes runs between the two pivot axes.
  • the switching positions can be set in a simple manner by the switching rocker since, depending on the direction in which the actuating member is moved, the spring and thus the spring force line is displaced, so that the switching rocker pivots.
  • the recess provides intermediate support for the actuator, switching spring and switching rocker when the switch is assembled.
  • the switch when the switch is designed as a pressure switch, the actuator protrudes with one end as a handle from the housing, while a compression spring is provided at its other end, by means of which the actuator is preloaded in one direction. A transition into the individual switching positions occurs due to the different depths of penetration of the actuator into the housing.
  • the switch in another embodiment of the invention, in which the switch is provided as a swivel switch, one arm of a pivotable angle lever engages in the receptacle of the link-like actuating element, while the other arm projects out of the housing as a handle.
  • the different switch positions occur by simply pivoting the angle lever, the special design of the switch spring in conjunction with the two pivot axes converting the pivot lever itself into a central position with its handle.
  • the two projections of the actuating element engage the switching spring between the holding bearing and the second fastening point of the switching spring provided on the housing.
  • the structure of the switch is simple.
  • the pivot axis of the actuating element is advantageously arranged on the side of the holding bearing facing away from the projections, in order to achieve a reliable switchover with regard to the rotational movement even with very small angular amounts.
  • the switch housing is constructed in two parts, in this case are inserted as an insert into the second housing partially formed first housing part, the rocker arm, the fixed contacts and the switching spring arranged.
  • This measure ensures that the first housing part can be preassembled with the switching parts and can then simply be inserted into the other housing part.
  • the rotary actuator is favorably mounted on the second housing in order to achieve a safe and simple bearing point for the rotary actuator, but nevertheless to ensure that a safe switchover of the switch is possible.
  • the rotary actuating member is constructed in two parts from a handle part and a switching part, in which case the two parts are connected to one another in a rotationally fixed manner in the region of the axis of rotation of the actuating member, wherein the handle part can be snapped into a receptacle of the switching part with a projection through the outer housing .
  • the insertion openings in the second housing part can be sealed off from the housing insert and the handling part by a sealing ring, in order to reliably protect the inside of the switch against the ingress of moisture and contaminants.
  • the switching part of the actuating element has a compression spring at its end facing away from the axis of rotation, which prestresses the rotary actuating element in one direction of rotation. This allows the switch can be easily converted so that the switch can be transferred from a first switch-on position to a switch-off position and then into a second switch position. Such a design will be chosen if the second switch-on position should only be switched on for a short time.
  • the pivotable actuating element advantageously rests with the free end of its handle part against a roller section provided with switching cams. As a result of this measure, the transfer into the individual circuits can be carried out simply by rotating the roller section.
  • the switch shown in FIG. 1 has an outer housing 10 and an inner housing 11.
  • the inner housing 11 is mounted as an insert in the outer housing 10.
  • a handle 13 protrudes from an opening 12 with which the switch can be moved into its various switching positions.
  • the handle is pivotally provided.
  • the connection contact is formed in the interior of the housing as a holding bearing 17, while the connection contact 15 leads to a first stationary contact 18 and the connection contact 16 leads to a further stationary contact.
  • a switching rocker 20 is provided on the holding bearing 17. This rocker arm 2o is pivotable and comes into contact with the two fixed contacts 18 and 19 depending on the switching position.
  • the rocker arm 2o is here as a folding contact forms.
  • a double contact 22 is provided in the folding area 21, one part of which contacts the stationary contact 18 and the other part of which contacts the stationary contact 19.
  • the free ends 23, 24 which arise from the folding of the switching rocker and which lie opposite the folding region 21 are, as shown in FIG. 1, angled at an acute angle. At their free end they run together in a wedge shape and form cutting edges 25 which carry the pivot axes 26, 27 at their free end. The cutting edges 25 of the free ends 23, 24 engage in notch-like depressions 28 of the holding bearing 17. It remains to be added that the rocker arm carries an opening 29. One end 55 of a switching spring 30 is hooked into this opening. Furthermore, it should also be mentioned that the rocker arm 2o has a U-shaped cutout 31 in plan view, which is open towards the side of the cutting edges 25. This U-shaped cutout takes up an area of the switching spring 3o.
  • the holding bearing 17 is forked.
  • the fork space 32 receives areas of the switching spring 3o.
  • the other end 54 of the switching spring 3o is fixedly mounted on the inner housing.
  • a cross pin 33 is provided, on which the second end of the switching spring is suspended.
  • a link-like actuating member 34 is provided, which receives 35 areas of the switching spring 30 in a recess.
  • the actuator 34 is essentially Movable perpendicular to the longitudinal axis of the switching spring 3o and guided in the housing 11. It should already be stated here that regions of the switching spring 3o are also moved when the actuator is moved. For this purpose, two opposite edge regions of the recess 35 form projections 56, which engage the switching spring 3o when the actuating member 34 moves, and move regions of the switching spring 3o.
  • the actuator 34 is further provided with an opening 36.
  • An arm 37 of an angular pivot lever 38 engages in this opening 36.
  • the second arm 39 of the pivot lever 38 is designed as a handle 13 and, as already mentioned, protrudes out of the outer housing 10.
  • the swivel lever itself is mounted on the housing. 1, clockwise the actuator 34 moves upward, while when pivoting counterclockwise the actuator 34 is moved in its guide 4o down. During this upward and downward movement of the actuating member, as already mentioned, part of the spring 3o is taken along. As a result, the line of action 52 of the spring changes with respect to the switching rocker 20.
  • the switching rocker When the actuating member moves downward, the switching rocker receives a downward force component due to a downward moving spring area, so that the contact 22 can come into contact with the stationary contact 18. At the same time, however, the shift rocker is also pulled against the holding bearing 17 via a further force component of the shift spring.
  • the deflected switching spring also acts as a force compo Nente on the actuator 34 in the upward direction, so that when the handle is released, the actuator 34 moves into its position shown in Fig. 1.
  • the line of action 52 of the spring changes with respect to the switching rocker, namely the line of action now lies between the two pivot axes 26 and 27 of the switching spring. This causes the switching rocker to pivot back so that the contact 22 is released from the connection contact 18.
  • the actuator 34 could be provided with an extension protruding from the housing, which serves as a handle. By pushing in or pulling out the handle, the shift rocker could then be pivoted, as described, the resetting is then carried out again by the shift spring. It would also be possible to extend the actuator on both sides, so that there are handles protruding from the housing at both ends, which then cause a switchover by pushing in and / or pulling out.
  • the switch is designed as a pressure switch.
  • the actuator 34 has an extension 41 which protrudes through an opening 42 in the housing and forms the handle 13 there outside the housing.
  • the actuator is loaded at the end opposite the handle with a compression spring 43 which tries to always move the actuator 34 to its upper position.
  • the rocker arm is approximately triangular in side view and in the manner of an isosceles triangle.
  • the main tip 44 of the isosceles triangle carries the contact 22, while the other two tips 45, 46 are assigned to the pivot axes 26 and 27.
  • the switching rocker is then pivoted again.
  • the two pivot axes 26, 27 of the rocker arm 2o engage in a channel-like depression 53 of the holding bearing 17 for the purpose of mounting.
  • the shift rocker is made of a plate-shaped material. It has the U-shaped cutout 31 at its lower end, the two U-legs 47 and 48 in turn having a longitudinal cut 49 which divides the two U-legs into regions 50 and 51.
  • the area 50 of both U-legs 47, 48 is angled in one direction, while the area 51 of the two U-legs 48, 49 is angled to the other side at an acute angle: (FIG. 4).
  • Fig. 6 the backdrop-like actuator is shown in more detail.
  • the recess 35 is C-shaped, so that the spring 3o from the side in the Recess 35 can be inserted.
  • the boundaries of the recess 35 form projections 56 with which the switching spring is moved.
  • the opening 36 is closed on all sides.
  • the arm 37 of the pivot lever 38 engages in it.
  • the snap switch shown in FIGS. 7 to 9 is constructed as a built-in switch. It is installed in a device wall 112.
  • the housing of the switch consists of two parts, namely an outer housing part 11o and an insert-like housing part 111.
  • the two housing parts are fastened to one another by a latching connection (not described further).
  • the actuator 113 of the switch is constructed angularly and consists of two parts, a handle part 114 and a switching part 115.
  • the two leg-like parts are connected in that the handle part 114 is assigned a shoulder 138 which engages in a receptacle 116 of the switching part, whereby this recording has undercuts, which is engaged by projections, so that the two parts of the angular actuator 13 is attached to each other by a locking connection 117.
  • the handle part 114 and the switching part 115 are non-rotatably connected to one another by the non-circular cross section of shoulder 138 and receptacle 116, the axis of rotation 137 of the actuating member leading through the shoulder and seat.
  • a sealing ring 118 is provided around the insert 111, the sealing ring 118 taking up its function when the two housing parts 110 and 111 are fastened to one another, and the sealing ring 119 is also used arranged around the shoulder 138 of the handle part 114 and seals its inlet opening into the interior of the housing.
  • the insert 111 carries the various fixed contacts 12o and 121, these contacts being cast in some areas with the insert itself.
  • the fixed contact 121 carries a holding bearing 123 on the inside of the housing, on which a rocker arm 122 is supported.
  • the fixed contacts 12o have mating contacts. Depending on the switching position, they alternately make an electrically conductive connection with one end of the rocker arm 122.
  • the rocker arm 122 is associated with two pivot axes 124, 125, here the rocker arm pivots about the pivot axis 124 when it is pivoted clockwise in Fig. 7, while it moves about the pivot axis 125 when it is from that shown in Fig. 1 Middle position of the rocker arm is moved from counterclockwise.
  • the shift rocker 122 has an opening, not designated in any more detail, in which a switch spring 126 is suspended with its spring end 13o.
  • the other spring end 129 of the switching spring 126 is mounted on the insert 111. For this purpose, it engages around a pin 127 provided on the insert.
  • the arrangement of the pin 127 of the two pivot axes 124, 125 and the fastening end 13o of the spring is designed such that the spring line of action 136 extends between the two pivot axes 124, 125 in the central position.
  • the switching part 115 is provided with projections 128 at its end facing away from the connection point with the handling part 114, in this case the two projections, see FIG. 7, encompass the switching spring directly behind the holding bearing 123 for the switching rocker 122.
  • the spring 126 is tensioned somewhat, this time the spring resiliently loading the lower projection 128 of the two projections of the switching part.
  • the shift rocker automatically swings into its central position. In this middle position there is no electrically conductive connection between the fixed contacts 12o on the one hand and the fixed contact 121 on the other hand.
  • Fig. 7 The three positions of the actuator and its projections 128 are shown in Fig. 7, here the middle position is shown fully extended, while when pivoting the actuator in the counterclockwise direction this end position is shown dotted.
  • the end position when the actuator is moved clockwise is shown in dash-dot lines, as can be seen from FIG. 7.
  • the switching part is provided with an extension 131 at its free end.
  • a compression spring 132 is supported on this extension in such a way that the actuator is resiliently loaded in the clockwise direction.
  • the rocker arm is U-shaped, here is the central opening of the fastening opening for the switch spring, while the two side legs have both pivot axes 124, 125, the two pivot axes engaging in unspecified recesses of the holding bearing 123.
  • the insert 111 is fully assembled before it is inserted into the outer housing part 110, i.e. is provided with the rocker arm and the switching spring, in addition, the switching part 115 of the actuator with the compression spring 132 is arranged in a receptacle of the insert. After insertion, as already mentioned, there is a latching between the two housing parts 110 and 111, and the handle part 114 can then also be fastened to the switching part.
  • the illustrated embodiments are only examples of realizations of the invention. This is not limited to this, but many other changes and applications are possible.
  • the actuator could also be formed in one piece, the switching part with the projections being designed as a rotating link instead of the pivotable mounting shown. The pivoting movement of the actuator then takes place through a positive guidance in the insert. One end of the rotating link would then protrude from the housing and could in turn be operated by switching cams or by hand.
  • the rotating link could also be equipped with an extension, at the end of which the compression spring 132 would be arranged. could continue if there is little space is given for the movement of the actuator, this can be arranged even closer to the holding bearing.
  • the snap switch can not only be constructed as a microswitch.
  • it could also be used as a push button or even a push button switch in the house installation.
  • several switching rockers could be arranged next to one another in order to enable multi-pole switching, or to be able to open or close further switching circuits.

Landscapes

  • Tumbler Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Valve Device For Special Equipments (AREA)
EP90109559A 1989-05-23 1990-05-19 Interrupteur à rupture brusque en particulier interrupteur miniature Expired - Lifetime EP0399419B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3916763 1989-05-23
DE19893916763 DE3916763A1 (de) 1989-05-23 1989-05-23 Elektrischer schnappschalter, insbesondere mikroschalter
DE9004499U 1990-04-20
DE9004499U DE9004499U1 (de) 1990-04-20 1990-04-20 Elektrischer Schnappschalter, insbesondere Mikroschalter

Publications (3)

Publication Number Publication Date
EP0399419A2 true EP0399419A2 (fr) 1990-11-28
EP0399419A3 EP0399419A3 (fr) 1991-09-11
EP0399419B1 EP0399419B1 (fr) 1996-06-26

Family

ID=25881189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90109559A Expired - Lifetime EP0399419B1 (fr) 1989-05-23 1990-05-19 Interrupteur à rupture brusque en particulier interrupteur miniature

Country Status (2)

Country Link
EP (1) EP0399419B1 (fr)
DE (1) DE59010388D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1555681A1 (fr) * 2004-01-14 2005-07-20 ABB PATENT GmbH Commutateur électrique
CN108320977A (zh) * 2018-03-02 2018-07-24 哈尔滨莱特兄弟飞行技术有限公司 一种仿真飞机扭子杆跳开关
WO2018162813A1 (fr) * 2017-03-10 2018-09-13 Psa Automobiles Sa Système de commande a bascule tactile présentant un encombrement réduit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19854171C1 (de) * 1998-11-24 2000-03-23 Cherry Gmbh Elektrischer Schnappschalter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1211699A (fr) * 1957-09-30 1960-03-17 Burgess Products Co Ltd Dispositif à déclenchement brusque et son application aux interrupteurs et commutateurs électriques
DE1979685U (de) * 1967-08-18 1968-02-29 Ernst Blaser Mikroschalter.
DE6927445U (de) * 1969-07-07 1969-12-04 J & J Marquardt Kg Taster.
DE1515876B1 (de) * 1964-02-10 1969-12-04 Jllinois Tool Works Inc Einpoliger Mikro-Umschalter
DE8419891U1 (de) * 1984-07-03 1985-11-21 Leopold Kostal GmbH & Co KG, 5880 Lüdenscheid Elektrischer Schnappschalter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1211699A (fr) * 1957-09-30 1960-03-17 Burgess Products Co Ltd Dispositif à déclenchement brusque et son application aux interrupteurs et commutateurs électriques
DE1515876B1 (de) * 1964-02-10 1969-12-04 Jllinois Tool Works Inc Einpoliger Mikro-Umschalter
DE1979685U (de) * 1967-08-18 1968-02-29 Ernst Blaser Mikroschalter.
DE6927445U (de) * 1969-07-07 1969-12-04 J & J Marquardt Kg Taster.
DE8419891U1 (de) * 1984-07-03 1985-11-21 Leopold Kostal GmbH & Co KG, 5880 Lüdenscheid Elektrischer Schnappschalter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1555681A1 (fr) * 2004-01-14 2005-07-20 ABB PATENT GmbH Commutateur électrique
WO2018162813A1 (fr) * 2017-03-10 2018-09-13 Psa Automobiles Sa Système de commande a bascule tactile présentant un encombrement réduit
FR3063830A1 (fr) * 2017-03-10 2018-09-14 Peugeot Citroen Automobiles Sa Systeme de commande a bascule tactile presentant un encombrement reduit
CN108320977A (zh) * 2018-03-02 2018-07-24 哈尔滨莱特兄弟飞行技术有限公司 一种仿真飞机扭子杆跳开关

Also Published As

Publication number Publication date
EP0399419A3 (fr) 1991-09-11
DE59010388D1 (de) 1996-08-01
EP0399419B1 (fr) 1996-06-26

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