• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1454002 Vehicle-brake transmitting-mechanism; boosters H O SCHROTER 28 Feb 1974 [28 Feb 1973] 9109/74 Headings F2E and F2F In an operating mechanism for a vehicle brake of the kind having an operating lever 11 pivoted at 12 on a fixed part 5 of the chassis, Fig. 1, from which lever the operating force is transmitted to a relay lever 3 that is joined to the brake linkage 1, the mechanism also having a roller 10 biased by a spring 8 for increasing the operating force, the relay lever 3 is also pivoted to the fixed part 5 at 4 and the roller 10 acts on a first zone a of the relay lever periphery which is concentric with the pivot 4, during at least the first half of the pivotal travel of the relay lever from its release position, and then on a second zone b which is at a progressivelydecreasing radial distance from the pivot 4 during the remainder of the brake application, and the ratio of the pivotal velocity of the operating lever 11 to the resultant velocity of the brake linkage 1 first increases and then decreases. Preferably the brake linkage 1 acts on a master cylinder. In both Figures the operating lever 11 acts on relay lever 3 via a roller 13. In Fig. 2 the operating lever and the lever 6 carrying the roller 10 have a common pivot at 7; the operating lever is connected via its roller pivot and adjustable linkage 14 to a pedal (not shown) and the master cylinder is shown at M; the operating direction is from right to left. The relay lever is urged into continuous contact with roller 13 by a link 15 having a hairpin spring 21 which engages the joint pin 2 connecting the relay lever with the brake linkage 1. The same spring loading urges the relay lever 3 against a fixed stop 17 in the release position of the mechanism. The hole in relay lever 3 for the joint pin 2 may be provided in a removable insert; the hole may be eccentrically located in that insert so reversal of the insert provides a different position for the hole (Fig. 3, not shown).
    公开号:SU810072A3
    申请号:SU742008113
    申请日:1974-02-26
    公开日:1981-02-28
    发明作者:О.Шретер Ханс；Юрген Шретер Ханс
    申请人:Schroeter Hans O；Schroeter Hans J；
    IPC主号:
    专利说明:

    This invention relates to vehicle brake drives. The closest of the known technical solutions is a transmission mechanism for the brake drive of a vehicle, which contains a base on which is mounted with a water swivel lever, is connected by a length-adjustable pull from the pedal and is in contact with a roller fixed on it to the profiled surface of the intermediate swivel lever hinged to the push rod of the master brake cylinder l The disadvantage of the known mechanism is that the distribution of forces in its elements does not allow to move the stroke of the main brake cylinder without significantly increasing the stroke of the drive steering lever. The purpose of the invention is to improve the distribution of forces in the amplifier elements. This goal is achieved by the fact that the mechanism is equipped with an additional pivoting lever fixed on the base, equipped with a roller and preloaded spring to the intermediate pivoting lever, the profiled surface of which is made with the first section, concentric to the pivot axis of the intermediate lever and in contact with the roller of the additional pivoting lever, and adjacent with the first second section, the profile radius of which decreases in the direction of the third section having a convex profile. In this case, the driving rotary lever and the additional rotary lever are fixed on the same axis, and the base is provided with a stop to limit the rotation of the intermediate rotary lever when the force is removed from the pedal. FIG. 1 shows a transmission for a vehicle braking drive, first embodiment; in fig. 2 - the same, the second option; in fig. 3 - connection of the intermediate lever with a pusher of the main brake cylinder. The transmission mechanism consists of an intermediate pivot arm 1 connected by a hinge bolt 2 to the pusher 3 of the main brake cylinder. The lever 1 is mounted on an axis 4 fixed on the base 5. The optional rotary lever b is mounted on the base 5 rotatably about axis 7 and provided with a roller 8 pressed under the action of a spring 9 against the profiled surface of the lever 1. The profiled surface of the lever 1 consists of the first section ab, concentric to axis 4, second section bb, the radius of the profile of which decreases in the direction of the third section cb, which has a convex profile.
    The driving rotary lever 10 is installed on the axis 11 and is provided with a roller 12 / in contact with the profiled surface of the lever 1.
    The lever 10 with the roller 12 is mounted on the same axis as the lever 6. The lever 10 is adjusted by a adjustable rod 13 and is connected to the pedal. A support 14 is mounted on the base 5 to limit the rotation of the lever 1 in the direction of separation. The roller 12 is constantly in contact with the lever 1. This is achieved by the fact that the hinge bolt 2 and the trunnion, the roller 12 are connected by a tight 15 having an elongated hole 16. The th 15 ha is attracted to the lever 1 by the spring 17. Thus, in the disconnected position the roller 12 th 15 is pressed against the lever 1, and the latter with a spring 9 - against the stop 14. The mechanism is insulated from the atmosphere with covers 18, 19 and bellows 20. The lever 1 has a window 21 in which is installed a removable insert 22 with a hole for the hinge bolt 2.
    The elements of the mechanism are arranged so that the ratio of movements when the lever 10 is turned and the lever 1 in the initial position has an insignificant value. Upon further rotation of the lever 10 clockwise, this ratio will increase to a maximum and, finally, decrease again. This leads to the fact that the roller 8 only releases the spring 9 to support the driving force when the transmission between the lever 10 and the pusher 3 becomes degressive.
    In this case, the ratio of the forces on the pusher 3 to the driving force on the lever 10 can be kept constant even when the transfer of movement transferred from the lever 10 to the pusher 3, after the transition of the maximum value of the ratio of movements proceeds degressively.
    Thus, two combined effects are detected. The maximum amount of transfer of movement between the lever 10 and the pusher 3 can become larger without increasing the movement of the lever 10, since the additional movement required for this increase is saved due to the degressive transfer movement. Spring 9 most of its work to support the drive south force, i.e. for mechanical reinforcement, it can surrender without applying a driving force to disconnect the brake during a large phase of the release stroke on the push rod 3. The spring 9 is independently re-tensioned when the driving force is removed.
    权利要求:
    Claims (2)
    [1]
    1. A transmission mechanism for a vehicle's braking drive comprising a base on which a driving rotary lever is mounted associated with a pedal adjustable in length and in contact with a roller fixed to it with a profiled surface of an intermediate rotating lever connected to the main brake cylinder pusher characterized in that, in order to improve the distribution of forces in the elements of the amplifier, it is provided with an additional pivoting lever fixed to the base, equipped with face and spring compressed to the intermediate pivot arm, the profiled surface of which is made with the first section, concentric axis of rotation of the intermediate lever and in contact with the roller of the additional pivoting lever, and adjacent to the first second section, the profile radius of which decreases in the direction of the third section having bulky profile.
    [2]
    2. The mechanism according to claim 1, on. This means that the driving pivot lever and the additional pivoting lever are fixed on the same axis, and the base is provided with an abutment to restrict the rotation of the intermediate pivoting lever when the force is released from the pedal.
    Sources of information taken into account in the examination
    1. Industrial design of Germany No. 7205400, cl. 63 from 19/01, 1972.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU810072A3|1981-02-28|Transmission mechanism for brake drive of transport device
    US5590747A|1997-01-07|Force transmission device slideably mounted to drum brake shoe
    GB1390999A|1975-04-16|Mechanical braking system for a vehicle trailer
    CN1269001A|2000-10-04|Mechanically actuated disk brake and clutch
    US4364456A|1982-12-21|Drum brake having duo mode
    CA2122883C|1998-06-09|Truck mounted brake apparatus
    US4385528A|1983-05-31|Brake pedal linkage assembly
    GB1493831A|1977-11-30|Brakes
    US4350230A|1982-09-21|Drum brakes for vehicles
    GB1461603A|1977-01-13|Braking device
    US4336867A|1982-06-29|Drum brake having duo mode
    JPH09506691A|1997-06-30|Drum brake with cam-operated parking brake lever
    US1928630A|1933-10-03|Brake
    GB1265078A|1972-03-01|
    US4015694A|1977-04-05|Brake construction
    US3258090A|1966-06-28|Disc brakes
    FI72293B|1987-01-30|BROMSANORDNING FOER SLAEPVAGN.
    GB1493832A|1977-11-30|Brakes
    US4456102A|1984-06-26|Overrunning wheel brake
    USRE17899E|1930-12-09|Vehicle brake mechanism
    US3334707A|1967-08-08|Disc brake for rail vehicles
    US3749206A|1973-07-31|Self-energized disc brake mechanism
    GB2091827A|1982-08-04|Drum brake for overrun-braked trailer
    GB1238023A|1971-07-07|
    GB2172675A|1986-09-24|Overrun operated trailer brake with reversing capabilities
    同族专利:
    公开号 | 公开日
    CS208695B2|1981-09-15|
    NL7402342A|1974-08-30|
    AU6615174A|1975-08-28|
    IT1008958B|1976-11-30|
    DD112396A5|1975-04-12|
    JPS5227414B2|1977-07-20|
    AT335864B|1977-04-12|
    FR2219039A1|1974-09-20|
    BE811723A|1974-06-17|
    JPS5030233A|1975-03-26|
    ATA109174A|1976-07-15|
    DE2309973C2|1982-07-22|
    US3934490A|1976-01-27|
    BR7401463A|1975-11-04|
    AR201033A1|1975-02-06|
    ES423695A1|1976-04-16|
    PL90188B1|1977-01-31|
    DE2309973A1|1974-09-05|
    SE405707B|1978-12-27|
    GB1454002A|1976-10-27|
    FR2219039B3|1976-12-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1727742A|1926-10-06|1929-09-10|Athimon Francis|Servo brake|
    DE902464C|1951-01-20|1954-01-21|Krauss Maffei Ag|Handbrake for heavy vehicles with an additional energy storage device serving to increase the brake pressure when pulling the handbrake lever|
    DE1048493B|1953-09-28|
    US2977817A|1958-07-03|1961-04-04|Gen Motors Corp|Variable ratio lever mechanism|
    DE1480142A1|1965-03-01|1969-09-04|Schroeter Hans O|Handbrake lever with variable transmission|
    US3626784A|1969-10-20|1971-12-14|Forney International|Linkage system|
    DE2116325C3|1971-04-03|1973-11-08|Knorr-Bremse Gmbh, 8000 Muenchen|Brake cylinders, in particular for vehicles|
    FR2171375A1|1972-02-12|1973-09-21|Schroter Hans|DE2645982C2|1976-10-12|1990-09-20|Schroeter, Hans O., 8000 Muenchen, De|
    DE2746386C2|1977-10-14|1989-10-05|Schroeter, Hans O., 8000 Muenchen, De|
    US4386537A|1978-10-10|1983-06-07|Clark Equipment Company|Variable ratio brake pedal|
    US4270406A|1979-01-15|1981-06-02|Orscheln Co.|Brake cable operating means affording a mechanical advantage|
    DE3824812C2|1988-07-21|1997-02-20|Teves Gmbh Alfred|drum brake|
    US5351573A|1991-10-07|1994-10-04|Cicotte Edmond B|Adjustable automobile pedal system|
    DE4220752A1|1992-06-29|1994-01-13|Herbert Schreiber|Force amplification arrangement, e.g. for vehicle brakes - has spring applying additional force to working element as operating element is advanced|
    US5531136A|1994-10-03|1996-07-02|Tyler; Stanley R.|Brake operating mechanism|
    DE10212879B4|2002-03-22|2007-09-06|Fico Cables, S.A., Rubi|Actuation mechanism for a parking brake|
    US20060053948A1|2003-05-28|2006-03-16|Akhil Mahendra|Variable ratio brake pedal linkage mechanism|
    US20050166703A1|2004-01-29|2005-08-04|Nebojsa Djordjevic|Variable rate control pedal|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2309973A|DE2309973C2|1973-02-28|1973-02-28|Brake operating device with an operating lever and variable translation|
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