Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
  • F16H59/02—Selector apparatus
  • F16H59/04—Ratio selector apparatus
  • F16H59/042—Ratio selector apparatus comprising a final actuating mechanism
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
  • F16H61/26—Generation or transmission of movements for final actuating mechanisms
  • F16H61/36—Generation or transmission of movements for final actuating mechanisms with at least one movement being transmitted by a cable
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T74/00—Machine element or mechanism
  • Y10T74/20—Control lever and linkage systems
  • Y10T74/20012—Multiple controlled elements
  • Y10T74/20018—Transmission control
  • Y10T74/20049—Transmission controlled by flexible cable

Definitions

• the invention relates to the technical sector of equipment for motor vehicles and relates more particularly to a cable control of a gearbox including mechanical, by means of a lever.
• a gearbox control lever is mounted with angular displacement capacity in a support fixed to a portion of the motor vehicle, for example on the floor.
• the support has arrangements for mounting with multidirectional displacement capacity of the lever, in particular in the form of a spherical joint such as a ball joint.
• the control of the gearbox as such, from the lever, is carried out by bars or rigid cables.
• the foot of the lever is coupled, in an articulated manner, to a rigid cable mounted in a sheath.
• This rigid control cable is coupled at its other end to the gearbox mechanism, for the passage of said speeds.
• the selection of speeds is also done by means of a bar or a rigid cable.
• the ball has, substantially in a manner perpendicular to the lever, a coupling finger for mounting a deflection element and selection of speeds.
• the lower end of the deflection element, opposite to that coupled to the ball joint, is arranged for fixing, with articulation capacity, the rigid cable considered also mounted in a sheath.
• the end of this cable is secured to a tip articulated with the return member.
• the object of the invention is to remedy these disadvantages in a simple, safe, effective and rational manner.
• the problem to be solved by the invention is to significantly reduce costs, with the aim of eliminating the need to have, between the control lever and the gearbox, rigid control and coupling cables.
• the arrangements are constituted, for the passage and for the selection, by members capable of being rotated under the effect of the movements of the lever, the strands of cables being coupled to these organs.
• the organs are at least partially circular.
• one of the members is directly attached to said lever to form the passage member, while the other member is controlled by the lever via a deflection member, and constitutes the selection organ.
• the passage and selection members are arranged in two substantially parallel vertical planes.
• the passage member is disposed in a substantially horizontal plane, while the selection member is disposed in a substantially vertical plane.
• the coupling strands between the lever-side and gearbox-side transfer members, and the coupling strands between the lever-side and the gearbox-side selector members. are respectively part of the same cable, or the coupling strands between the lever-side and gearbox-side transmission members, and the coupling strands between the lever-side and gearbox-side selector members are respectively independent.
• the cable is secured in arrangements having an area of the rotational passage member and has an area of the rotary selector member on the lever and transmission side.
• the fastening arrangements of the rotary members are constituted by a tension pad in which is mounted a locking finger, the assembly is subjected to a return spring, said locking finger is shaped to leave the free cable assembly, then ensure the blocking of the pad after tension of the cable, and jam the cable.
• the cable is engaged in a peripheral groove which the rotary members present, the locking finger, ensuring the locking of the cable as well as the stop in translation of the pad, cooperating with an area formed in overflow from the periphery of the member rotary considered passage and selection lever side.
• the cable is fixed in arrangements that have two distinct zones of the rotary passage member and that have two distinct areas of the rotary selector lever-side and transmission side.
• Another problem that the invention proposes to solve is to obtain, from this flexible cable control device, a perfectly linear grid, in opposition to the existing solutions where the passage takes place along a very slightly curved path.
• the rotary members delimit, with respect to the axis of symmetry of said lever, an angular sector of the order of 20 ° passing side of even speeds and of the order of 40 ° passage side of odd speeds, said angular sectors being the same side gearbox.
• the lever arm enters, on the one hand, the axis of rotation of the selector and passage members on the lever and transmission side and, on the other hand, the point of tangency of the cable strands with respect to said members, is always the same, so the ratio is constant.
• the connection between the lever and the selector is in an oblong hole, so that the rotation of the selector does not affect the trajectory of the lever.
• FIGS. 1 to 3 are purely schematic figures showing the operating principle of the control device according to the invention, from a neutral position of the corresponding lever, for example, to the neutral position ( Figure 1); when the lever is pushed ( Figure 2) or pulled ( Figure 3); - Figures 4 and 5 are perspective views of the control device considered on the lever side;
• FIG. 6 and 7 are views of the device considered on the side of the gearbox;
• FIG. 8 is a perspective view of the control device considered on the lever side showing a solution for coupling and fixing the same cable at a zone which has rotary passage and selection members;
• Figures 9 and 10 are partial views showing the corresponding free position ( Figure 9) and in the locking position of the member relative to the corresponding rotational member;
• FIGS. 11 and 12 are schematic views showing the constancy of the ratio as a function of the displacement of the lever, box-side and lever-side;
• FIG. 13 is a view from above of the support in which the lever is mounted according to the features of the invention making it possible to obtain a perfectly linear grid
• the invention relates to a device for controlling a mechanical gearbox (BV) by means of a lever (L) mounted with multidirectional articulation capacity in a support housing (S).
• BV mechanical gearbox
• L lever
• S support housing
• the control of the speeds, from the lever (L), both at their passage and their selection is effected by means of flexible cable strands (1). , (2) and (3), (4).
• the device has, at the level of the lever (L) and of the gearbox (BV), arrangements (5), (6) , (7) and (8) adapted to allow a traction action on the cable strands (1), (2) and (3), (4), and whatever either the direction of movement of the lever, both linearly for the passage of speeds, that is to say by pushing or pulling the lever, than in an angular manner, corresponding to the selection of speeds.
• control lever (L) is directly secured, at its base, to the member (5), of generally circular shape.
• the mounting of the lever (L) equipped with the member (5) in the support housing (S) remains in a manner known to those skilled in the art with the aim of being able to move it linearly in one direction or in the other, for the passage of speeds and, angularly, in one direction or the other, for the selection of said speeds.
• This rotary member (5) is arranged in a substantially vertical plane and is connected by the cable strands (1) and (2) to the member (7) mounted at the gearbox (BV) for the passage speeds.
• the rotary member (7) is disposed in a substantially horizontal plane.
• the cable strands (1) and (2) are engaged in a groove (5a) and (7a) formed at the periphery of the members (5) and (7) by being fixed by any known and appropriate means.
• the member (6) is mounted, at the support housing (S), with rotational drive capability, under the effect of angular tilting, in one direction or the other of the lever (L).
• the member (6) of generally circular shape, is secured to the lever (L) via a return member visible in Figure 13 and made, for example, in the form of a finger selection lever secured to the lever and which is housed in an oblong hole of the selector gear as is well known to those skilled in the case of a conventional control bars or rigid cables.
• the member (6) is connected by the cable strands (3) and (4) to the member (8), also of generally circular shape, arranged at the gearbox (BV) for the selection of said speeds.
• the member (6) can be arranged in a vertical plane, in a manner substantially parallel to the member (5).
• the selection member (8) is disposed in a vertical plane substantially perpendicular to the horizontal plane where the member (7) is inscribed.
• the cable strands (3) and (4) are engaged in grooves (6a) and (8a) formed at the periphery of the members (6) and (8), being fixed thereto by any known and appropriate means.
• the coupling strands (1) and (2) for the passage members (5) and (7) and the coupling strands (3) and (4) for the selection members (6). ) and (8) are part of the same cable.
• the cable (1) - (2) passage is fixed in arrangements that has a region of the periphery of the rotary member (5) lever side, and an area that has the periphery of the rotary member (7) gearbox side.
• the selection cable (3) - (4) is fixed in arrangements that has a region of the periphery of the member (6) and a region of the periphery of the rotary member (8).
• FIGS. 8, 9 and 10 An advantageous form of this fastening zone at the periphery of the rotary members (5) and (6) is illustrated in FIGS. 8, 9 and 10.
• the fastening arrangements of this zone consist of a pad (10) secured to a spring .
• a locking finger (9) is mounted on the pad, and locks the pad position once the spring has been released and creates a physical link between the cable and the lever.
• the locking finger (9) cooperates with a zone (11) formed in overflow of the periphery of the rotary member considered, passage (5) and selection (6).
• the assembly of the locking finger (9) and its mounting arrangements, in particular at the level of the projecting zone (11), are shaped to let the cable (1) - (2) of passage and the cable (3) - ( 4) selection, free to assembly.
• the spring stretches the cable, then the locking finger locks said cable.
• the coupling strands (1) and (2) passage and coupling strands (3) and (4) selection side are independent.
• the passage is made by means of two flexible cables, while the selection is also made by means of two flexible cables, in total, for passage and selection, 4 cables (1). , (2), (3), (4).
• Figure 1 shows any position of the lever (L) corresponding to the engagement of a speed or the neutral position. From this position, after possibly angularly moving the lever (L) in one direction or the other, to select a speed, the lever (L) can be pushed corresponding generally to the rise a report ( Figure 3) is drawn, generally corresponding to the descent of a report ( Figure 2).
• the strand (2) follows the angular displacement of the passage members (5) and (7) (arrow F2) ( Figure 2).
• the flexibility of the cables used, both at the passage and the selection makes it possible, between the control lever (L) and the gearbox (BV), paths of guidance that are not necessarily linear.
• the rotary members (5) and (6), on the lever side define, relative to the axis of symmetry (X - X ') of the lever (L), an angular sector ⁇ of the order 20 ° passage side even speeds and an angular sector ⁇ of the order of 40 ° side passage odd speeds.
• the lever arm enters, on the one hand, the axis of rotation of the rotary selection members

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Gear-Shifting Mechanisms (AREA)
• Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=41460490

Family Applications (1)

Country Status (5)

Families Citing this family (7)

Family Cites Families (9)

• 2009
  • 2009-05-28 FR FR0953516A patent/FR2946112B1/fr not_active Expired - Fee Related
• 2010
  • 2010-05-21 EP EP10728804A patent/EP2435732A2/de not_active Withdrawn
  • 2010-05-21 BR BRPI1013194A patent/BRPI1013194A2/pt not_active IP Right Cessation
  • 2010-05-21 US US13/322,711 patent/US20120118094A1/en not_active Abandoned
  • 2010-05-21 WO PCT/FR2010/050993 patent/WO2010136708A2/fr active Application Filing

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events