• 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:

    公开号:SU1256694A3
    申请号:SU833647074
    申请日:1983-09-26
    公开日:1986-09-07
    发明作者:Карре Жан-Жак
    申请人:Сосьете Аноним Дба (Фирма)；
    IPC主号:
    专利说明:

    one
    The invention relates to the construction of elements of the brake drive of vehicles.
    The purpose of the invention is to reduce the size.
    FIG. 1 shows an auxiliary brake servo, a longitudinal section J in FIG. 2 is a section A-A in FIG. one,
    Auxiliary brake servo motor of predominantly vacuum type consists of body 1, made of two shells 2 and 3, connected on the outer surface, usually made of sheet metal. Each shell contains an end wall A and 5 and an outer annular part 6 and 7 in the form of an outer hoop, which has a cylindrical shape that is attached to the gripping joint 8 in such a way as to limit the sealed cavity in the housing 1 in the assembled configuration of the servomotor with the main brake a cylinder (not shown) to which it is connected.
    The inner cavity is divided into two chambers 9 and 10 by means of a piston assembly, 11, connected to diaphragm 12, the outer collar of which is included in the grip connection 8, which fixes two shells 2 and 3 of housing 1 together. Usually the sheath 3 is supplied with fittings to the line, the outgoing and the vacuum source, thus, the chamber 9 is the vacuum chamber of the housing. The servomotor also comprises a hollow tubular bushing 13 of valve 14, in which a valve of conventional design is disposed, comprising a plunger 15 of valve 14 connected directly to a rod 16, extending axially through the bushing I3 of valve 14 and forming an input part of a servomotor. The rod 16 is designed to be connected to a vehicle brake pedal (not shown). .
    The output part 17 of the servomotor and the input part also contain a rod 18 for connection to the piston of the master brake cylinder (not shown) intended for mounting on the end wall 5 of the shell 3 of the housing 1 a cylindrical part in the form of a cover 19, the base of which interacts with the supporting disc 20
    20
    56694
    located between the outlet part and the plunger 15 of the valve 14. The support disk is mounted on the lid 19, is attached to the stem part 18, 5. The outer wall of the lid 19 is located in the annular groove 21 in the sleeve inside which is located with the cart. the plunger 15 of the valve 14 can be slidable. The valve bushing 13 contains channels 22 - 23 connecting the valve 14 to the vacuum chamber 9 and the chamber 10 of the housing 1, respectively. The end of the valve sleeve 13 ends in the tubular part 24 of the housing.
    The valve sleeve 13 is limited over most of its length by an outer cylindrical bearing surface 25, with which an annular seal 26 located in a sliding engagement, located in the rear elongated tubular portion 24 of a reduced diameter of the rear shell 2 of the housing. The piston assembly 1 comprises a tubular bushing 27 extending axially backward and connecting a central bore, defining an inner bearing surface 28, which is in tight sliding engagement with an outer wall 29 of increased diameter at the front end of the bushing 13, which is provided with O-ring seal 30, the annular end wall 31 of the tubular sleeve 26 of the piston assembly is included in
     radially inwards and slips against the outer part of the bearing surface 25 of the valve sleeve 13.
    The valve plug 15 is provided in the media. In this region, an annular groove 32, at one end of which a key 33 is located, is inserted radially into the front part of the valve sleeve 13 in the region of the channel 23. B
     The end wall 31 of the tubular bushing 27 of the piston assembly is provided with an opening 34 for providing communication between the channel 23 and the chamber 10. The return movement (after the impact) of the tubular bushing 13 is limited by a key 35 mounted on the bushing 13 and coming up to the stop with a radial shoulder 36 formed the back extended tubular part
    55 24 of the casing shell at the front of the seal 26, Key 35, thus forming the; ;, simultaneously forms the stopping border of the return movement for a 30
    3
    piston 1 by interacting with the outer surface of the annular end wall 31 under the action of the force of the return spring 37 of the piston assembly, located between the end wall 5 and the inner edges of the part of the piston assembly 11, In a number of options, the key 33 of the valve plunger can pass radially outwards the hole in the tubular bushing 27 of the piston assembly 1 I j to interact at the interface with the annular end wall 4, the seal 31 can thus be made on the piston assembly 1
    The system for increasing the force between the piston assembly 11 and the output part 17 consists, for example, of three flexible tensioning parts 38 arranged at an angle, the opposite ends of which are rigidly fixed respectively to the end wall 5 and the piston assembly. The annular end wall 5 is provided with a central g annular reinforcing part 39, through which the SCREW 40 passes to fasten the main cylinder to the casing shell 3. The annular reinforcing part comprises, for mounting each end 41 of the parts 38, two brackets 42 extending axially inside, in which a gauge 43 with a diametral groove, through which the end 41 of the part 38 passes, is mounted last. Part of the housing of the front plate 11 contains for each part 38 a bracket 44, extending in the axial direction, protruding from the pipe sleeve 27 in the direction of the end wall 5. The bracket 44 ends with a fork 45, in which a roller 46 with a diametral groove is mounted, into the latter corresponding to the end 47 of the elastic part 38,
    Part 38 consists of a tape or a metal band, or of a plastic material with high tensile strength. The portion 48 of the tubular sleeve 13 includes, on the periphery for each tape, two parallel tabs 49 extending radially outwardly, located at the front end of the section 48, between which the return roller 50 or angle-changing roller 50 is placed, the latter can be rotated. Diameter vnut0
    five
    0
    five
    566944
    The opening of the tubular bushing 27 is larger than the outer diameter of the portion 48 of the tubular bushing 3. In addition, in the retracted position of the movable assembly 5 (Fig. 1), the roller 46 is positioned behind the roller 50, i.e. slightly in front along the axis from the roller, between the last and the mounting roller 43 of the second end 41 of the tape. Thus, the tape 38 is continuously tensioned and partially bent back relative to the roller 50. The tension of the tape can be adjusted, for example, by rotating the roller 43, Moreover, when applying the braking force to the input rod 16, valve 14 isolates the chamber 10 from the vacuum chamber 9 and allows In the second phase, the atmospheric pressure existing inside the end part of the valve sleeve 13 penetrates into it in order to ensure a pressure difference on each side of the piston assembly 11. This causes the latter to move in the direction of the rod 16, n eodoleva .vozvratnoy spring effect when pombschi peremeschevi end 47 in the direction of the outer belt
    the end 4 of the tape fixed on the front end wall 5, which leads to movement through the roller 50 and the tubular sleeve 13 of the output part 17 with the required increased force; The nominal path L of the piston assembly 11 is approximately twice the nominal path t of the output part 17, since this is required for the full effect of the piston of the main cylinder. The increase in force arising from the support force applied to the roller 50 by means of belts under tension makes it possible to increase the diameter of the servomotor and, thus, to a greater extent limit the likelihood of curvature of the front wall 4 and 5 of the housing halves, the outer ring parts 6 and 7 of which, operating in the stretching mode, are not subject to significant axial curvature. In the assembled position, the output part is normally kept in contact with the support part by means of the piston of the main cylinder. An additional return spring 51 is provided mainly between the tubular sleeve 13 and the end; Wall 5 or its central ring-reinforcing part 39, on a top
    five
    0
    five
    0
    five
    The standard wall 4 of the rear half of the body 2 provides for conventional mounting screws for mounting the body to the main cylinder assembly on the stationary wall of the vehicle, and an internal annular reinforcement piece similar to part 43 can also be used for this purpose.
    43
    4S
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    Sh
    J7 f L
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    F
    / 7
    Editor O. Bugir
    Compiled by S. Makarov Tehred I. Popovich
    Order 4840/60 Circulation 647 Subscription
    VNIIPI USSR State Committee
    for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
    Production and printing company, Uzhgorod, st. Project, 4
    Proofreader A.Zimokosov
    权利要求:
    Claims (4)
    [1]
    1. AUXILIARY BRAKE SERVOMOTOR, comprising a housing divided by a piston into two chambers, a valve controlled by an inlet part for regulating communication between said chambers, an output element connected to the valve body, and an intermediate element for increasing the force transmitted from the assembly formed by the piston and the valve, to the output element, attached at one end to the end wall of the servo motor housing from the side of the output element, characterized in that, in order to reduce the size, the valve body is made in the form of LCI, on which is slidably mounted the piston and the intermediate member is secured to the bracket second end to the piston and is designed as a flexible belt stretched enveloping roller mounted on the hub of the valve body.
    [2]
    2. The servo motor according to π. 1, characterized in that the ends of the flexible stretched tape are fixed in the grooves of the rollers mounted on the end wall of the housing of the servomotor and the bracket on the piston.
    [3]
    3. The servomotor according to claim 2, wherein the roller for attaching the flexible stretched tape to the end wall of the servomotor body is mounted in a fork rigidly attached to the central reinforcing part of the end wall of the servomotor body.
    [4]
    4. The servo motor according to π. 1, characterized in that it is equipped with two additional flexible stretched tapes, while the ECE elastic stretch tapes are equally fixed and spaced around the circumference of the servomotor body.
    SU SP. 1256694> SM
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1256694A3|1986-09-07|Auxiliary braking servomotor
    US3981227A|1976-09-21|Power piston of booster
    CS264254B2|1989-06-13|Servo system for vehicle brakes system
    SU1321369A3|1987-06-30|Vacuum booster for mechanical brakes
    GB2031086A|1980-04-16|Brake boosters
    KR0131145B1|1998-04-21|Vacuum brake booster for motor vehicles
    US4594937A|1986-06-17|Servomotor for braking assistance
    KR960000778B1|1996-01-12|Servo motor for assisted braking
    US4481865A|1984-11-13|Vacuum brake booster
    US4784038A|1988-11-15|Pneumatic brake booster
    US4283993A|1981-08-18|Servo booster
    US5254204A|1993-10-19|Bead locking apparatus for tire building machine
    EP0220987B1|1989-06-14|Vacuum servo motor for assisted braking and method of controlling the same
    JP3595349B2|2004-12-02|Pneumatically operated booster for automotive brake system
    US5046399A|1991-09-10|Tandem type brake booster
    KR100593762B1|2006-06-28|Automotive Pneumatic Brake Booster
    US6295916B1|2001-10-02|Return spring arrangement for brake booster
    JPH08500308A|1996-01-16|Master cylinder mounting flange seal
    US4245845A|1981-01-20|Vacuum booster device
    US3093115A|1963-06-11|Fluid actuated control mechanism for a brake and similar apparatus
    JPH06219264A|1994-08-09|Valve element holding structure in negative pressure booster
    KR970066227A|1997-10-13|Rodless cylinder and method for manufacturing the cylinder tube
    JPH05301301A|1993-11-16|Pull-out device for tire molding
    JPH083755Y2|1996-01-31|Cup type piston packing
    JP6368541B2|2018-08-01|Negative pressure booster
    同族专利:
    公开号 | 公开日
    EP0106723A1|1984-04-25|
    ES8405698A1|1984-06-16|
    US4480526A|1984-11-06|
    PT77414A|1983-11-01|
    BR8305494A|1984-05-15|
    FR2533875B1|1985-03-01|
    YU186883A|1988-08-31|
    FR2533875A1|1984-04-06|
    ES526115A0|1984-06-16|
    RO88563A|1986-02-28|
    PT77414B|1986-03-11|
    JPH0431901B2|1992-05-27|
    IN160091B|1987-06-27|
    CA1201144A|1986-02-25|
    ZA836410B|1984-05-30|
    KR840006160A|1984-11-22|
    EP0106723B1|1986-05-28|
    DE3363771D1|1986-07-03|
    KR880002072B1|1988-10-14|
    PL142536B1|1987-10-31|
    AU1907083A|1984-04-05|
    AU551996B2|1986-05-15|
    PL243952A1|1984-06-18|
    JPS5977956A|1984-05-04|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2724982A|1951-02-03|1955-11-29|Gen Motors Corp|Hand brake linkage|
    DE2304834A1|1973-02-01|1974-08-08|Felix Kaiser|LEVER ARRANGEMENT FOR REINFORCING BRAKING DEVICES|
    US4086842A|1976-10-28|1978-05-02|The Bendix Corporation|Internal force multiplier for a servomotor|
    US4186650A|1976-10-28|1980-02-05|The Bendix Corporation|Internal force multiplier for a servomotor|
    US4387626A|1981-03-09|1983-06-14|The Bendix Corporation|Tandem brake booster|
    DE3112343A1|1981-03-28|1982-10-14|Alfred Teves Gmbh, 6000 Frankfurt|Brake booster for motor vehicles|JPH0347225B2|1983-06-04|1991-07-18|Jidosha Kiki Co|
    US4665800A|1985-09-03|1987-05-19|Allied Corporation|Tandem brake booster|
    JPH0412851Y2|1987-10-30|1992-03-26|
    US5263403A|1987-11-06|1993-11-23|Indian Head Industries, Inc.|Method of forming a tamper-resistant brake actuator|
    US5067391A|1987-11-06|1991-11-26|Indian Head Industries, Inc.|Tamper-resistant brake actuator|
    US5205205A|1987-11-06|1993-04-27|Indian Head Industries, Inc.|Tamper resistant brake actuator|
    FR2679305B1|1991-07-16|1993-10-22|Bendix Europe Services Tech|PRESSURE SERVO BRAKE.|
    FR2719539B1|1994-05-06|1996-07-19|Alliedsignal Automotive Espana|Servo motor using a ramp force amplifier.|
    JP4966590B2|2006-06-06|2012-07-04|▲邦▼彦 西田|Cutting board with excellent drainage function|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8216451A|FR2533875B1|1982-09-30|1982-09-30|
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