• 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:
    A drum brake is disclosed in which at least two, and preferably four, friction pad assemblies are symmetrically arranged with respect to the drum. The pad assemblies are slidably guided for movement towards and away from the drum in a substantially radial direction on drag-taking abutments in a relatively stationary drag-taking member, and the pad assemblies are applied to the drum by levers upon which actuators act.
    公开号:SU953994A3
    申请号:SU792734105
    申请日:1979-02-21
    公开日:1982-08-23
    发明作者:Ингрэм Брайан；Энтони Харрис Дэвид；Натараджан Рамамурти
    申请人:Гирлинг Лимитед (Фирма)；
    IPC主号:
    专利说明:

    one
    The invention relates to mechanical engineering and can be used on vehicles.
    A drum brake is known that contains at least four spring-loaded friction brake shoes, symmetrically located with respect to the drum, a drive for moving the shoes, and levers that are interoperable with the drive and brake shoes Ij.
    A disadvantage of the known brake is that its lever system does not provide guaranteed js radial movement of the pads and is not relieved of lateral loads during brake operation, which ultimately reduces the service life of the brake. 20
    The purpose of the invention is to increase the service life of the brake.
    This goal is achieved by the fact that the drum brake of a vehicle containing at least
    Two spring-loaded friction pads symmetrically located on a stationary relatively rotatable drum base, as well as a drive for moving the pads toward the inner surface of the drum associated with the levers, is additionally fitted with stationary supports mounted in the drum on a stationary base with radial guides for each of the friction pad which are installed in guides with the possibility of radial movement. At the same time, the drum brake can be equipped with pushers installed in guides made in the form of hollow cylinders, each pusher being installed with the possibility of one end interacting with the shoe and the other with the corresponding lever. . In addition, the guides can be made in the form of grooves arranged symmetrically in a fixed base. FIG. 1 shows the proposed drum brake in plan view; in fig. 2 is a section A-A in FIG. one; in fig. 3 section bb in fig. 1. The drum brake consists of a fixed support 1 installed in a protective casing 2. Support 1 has four symmetrically arranged radial guides 3 with guide surfaces. The friction block 5 consists of a friction pad 6 and a shoe 7 on which this pad is attached. The shoe 7 has jumpers 8 and protrusions 9 interacting with the guiding surfaces 4 of the guide 3, inside of which the pusher 10 is mounted. The drive 11 for moving the pads is mounted on a fixed support 1 and consists of two elements 12 and 13, each of which interacts with the ends of the adjacent arms T, the other ends 15 are hinged on the fixed support 1. The pad movement actuator 11 is made with wedge pushers 1b moving in the housing 17 which is mounted on the support 1, and the pushers 1b open the wedge bar 18. The free ends of the levers 17 are connected to the pads 5 by the return springs 19, and each pair of the levers I are springs 20. The brake operates as follows. In the free state, the pads 5 are pressed out from the drum by the springs 19, the levers 14 and are in the position shown in fig. 1. When braking, wedge rods 18 under the action of a stump mb or hydraulic pressure act on wedge pushers 1b, which, in turn, turn the free ends of levers 1A around their articulated joint 15 with a support 1. With their movement, levers 1 through pushers 10 they act on the brake pads 5, which with the help of the forward 4 of the 3 are pressed against the brake drum in the radial direction. The proposed drum-brake allows for the radial movement of the brake pads, which ensures a uniform load on their friction surface, which allows them to increase their service life. The formula of the invention 1. A drum brake of a vehicle containing at least two spring-loaded friction pads symmetrically located on a fixed relatively rotating brake brake drum and also allows movement of the pads towards the inner surface of the drum, associated with increase in service life, the brake is provided with fixed supports installed in the drum on a fixed base with radial guides for each of the brake shoes, which are installed in apravl constituents with the possibility of radial movement. 2. The brake according to claim 1, is also distinguished by the fact that it is equipped with pushers installed in guides made in the form of hollow cylinders, with the possibility of each pusher interacting with one end with the block and the other with the corresponding lever. 3. A brake according to claim 1, characterized in that the pusher guides are made in. the form of radial grooves located symmetrically in a fixed base. Sources of information taken into account during the examination 1. USSR Author's Certificate No., cl. F 16.D Sl / l, 1961 (prototype).
    /
    fig.g
    权利要求:
    Claims (3)
    [1]
    Claim
    1. A drum brake of a vehicle, comprising at least two spring-loaded friction pads symmetrically located on a fixed base relative to a rotating brake, drum, as well as a drive for moving the pads towards the inner surface of the drum associated with it, characterized in that, for the purpose of increase the service life, the brake is equipped with fixed bearings installed in the drum on a fixed base with radial guides · for each of the brake pads that are installed in guides with the possibility of radial movement.
    [2]
    2. Brake pop. 1, with the fact that it is equipped with pushers installed in guides made in the form of hollow cylinders, with the possibility of interaction of each pusher with one end with the block, and the other with the corresponding lever.
    [3]
    3. Brake pop. ^ characterized in that the guides of the pushers are made in. in the form of radial grooves located symmetrically in a fixed base.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU953994A3|1982-08-23|Drum brake
    AU729847B2|2001-02-08|Disc brake
    US3253681A|1966-05-31|Spot type disc brakes for vehicles
    EP0201139B2|1992-09-16|A wedge brake arrangement for heavy road vehicles
    US4234061A|1980-11-18|Disc brakes for vehicles
    KR100322634B1|2002-07-03|Mechanically actuated drum brake
    GB1415202A|1975-11-26|Brake having an annular braking member especially for automobile vehicles
    GB1416122A|1975-12-03|Disc brake and a friction pad for such a disc brake
    ES248855U|1980-06-01|Floating-caliper spot-type disc brake
    US3191722A|1965-06-29|Shoe drum brakes
    US3365028A|1968-01-23|Spot-type disc brake
    US3487895A|1970-01-06|Axially movable caliper disc brake
    US3220513A|1965-11-30|Friction pad retaining means for caliper type disc brakes
    SU1004250A1|1983-03-15|Load-handling mechanism brake
    SU833026A1|1985-05-07|Disc brake
    GB1577421A|1980-10-22|Disc brakes
    GB1433044A|1976-04-22|Disc brakes for vehicles
    ES466318A1|1978-10-01|Drum brake
    US3198291A|1965-08-03|Self-energizing spot type disc brakes
    SU1539421A1|1990-01-30|Shoe brake with external shoes
    SU653450A1|1979-03-25|Disc brake
    US3173516A|1965-03-16|Vehicle brakes
    SU894250A1|1981-12-30|Wedge braking apparatus
    SU1110961A1|1984-08-30|Electromagnetic disk and shoe brake
    GB1431836A|1976-04-14|Brake device
    同族专利:
    公开号 | 公开日
    KR830001660B1|1983-08-22|
    FR2418381B1|1987-05-07|
    SE7901559L|1979-08-23|
    US4350230A|1982-09-21|
    SE437416B|1985-02-25|
    FR2418381A1|1979-09-21|
    JPS5517782A|1980-02-07|
    IT1111904B|1986-01-13|
    DE2906266A1|1979-08-30|
    GB2015098B|1982-04-28|
    IT7920421D0|1979-02-22|
    BR7901076A|1979-10-02|
    IN150822B|1982-12-25|
    GB2015098A|1979-09-05|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    BE362787A|
    US1238305A|1917-04-11|1917-08-28|Charles A Lane|Brake mechanism.|
    US1663147A|1926-04-16|1928-03-20|Chester A Spotz|Hydraulic brake|
    US1816093A|1928-11-19|1931-07-28|Scott Lyle Burnell|Brake for automobiles|
    DE521091C|1929-02-08|1931-03-18|Fritz Florig Dr Ing|Inner shoe brake, especially for motor vehicles with two groups of brake shoes|
    FR700803A|1929-11-04|1931-03-07|Pneumatic brake for vehicle|
    US2051088A|1934-09-17|1936-08-18|Charles R Kittle|Brake for motor vehicles|
    US2148776A|1936-04-29|1939-02-28|Detroit Hydrostatic Brake Corp|Front axle wheel and brake assembly|
    US2158818A|1936-08-13|1939-05-16|Aero Safety Brake Inc|Brake shoe|
    US2139197A|1937-02-01|1938-12-06|Pioneer Timber Co Ltd|Multiple shoe brake|
    US2399654A|1942-11-13|1946-05-07|Timken Axle Co Detroit|Brake mechanism|
    GB580334A|1944-06-30|1946-09-04|Automotive Prod Co Ltd|Improvements in or relating to internal shoe drum brakes|
    US2432983A|1944-10-28|1947-12-23|Timken Axle Co Detroit|Brake mechanism|
    US2503489A|1945-10-05|1950-04-11|Jr Thomas James|Multiple operated vehicle brake|
    US2587256A|1946-09-27|1952-02-26|Raymond B Watt|Internally expanding brake|
    US2518411A|1947-12-18|1950-08-08|Corbitt E Wilson|Duae action safety brake|
    DE839449C|1950-07-20|1952-05-19|Fritz Diederichs|Mechanically or hydraulically driven brakes, especially for motor vehicles|
    AT174307B|1950-11-20|1953-03-25|Karl Ing Voracek|Drum shoe brake with symmetrically arranged, exactly parallel guided, and actuated by a pressure cylinder brake shoes.|
    US2684131A|1950-12-08|1954-07-20|Chrysler Corp|Cam actuated multiple shoe brake|
    FR1116262A|1954-12-09|1956-05-07|Advanced drum brake|
    US2806558A|1955-09-27|1957-09-17|Horton Mfg Co Inc|Speed responsive internal brake|
    US3162273A|1960-05-06|1964-12-22|Bendix Corp|Lever actuated and anchored brake|
    US3390745A|1966-10-19|1968-07-02|Thomas L. Fawick|Self-energizing fluid-operated drum brake with cam-operated parking brake mechanism|
    GB1161197A|1967-03-16|1969-08-13|Girling Ltd|Improvements in and relating to Vehicle Drum Brakes.|
    DE2257893A1|1972-11-25|1974-06-20|Gruemer Eisenwerk|INNER SHOE BRAKE|SE447596B|1983-11-21|1986-11-24|Sven Erik Camph|DEVICE FOR TRANSMISSION OF BRAKE POWER BETWEEN BRAKE KEY AND BRAKE BACK IN TRUMBROMS|
    CN1284615A|2000-09-29|2001-02-21|清华大学|Shoe-drum brake with multiple-freedom linking shoes|
    US7077249B2|2000-09-29|2006-07-18|Tsinghua University|Drum brakes with interconnected multi-degrees-of-freedom shoes|
    FR2847627B1|2002-11-22|2006-02-10|Bosch Gmbh Robert|DRUM BRAKE AND SEGMENT FOR SUCH BRAKE|
    EP1869337B1|2005-04-13|2009-02-25|Automotive Products ItaliaS.r.l.|Drum brake|
    GB0523107D0|2005-11-11|2005-12-21|Automotive Prod Italia Sv Srl|Drum brakes|
    DE102008019531B3|2008-04-18|2009-10-22|Junge, Klaus, Prof.|Drum brake has stationary brake anchor plate and brake drum, where two bridging sections are provided, and each of two lever segments is held at end pivoted at fulcrum pin|
    JP5533099B2|2010-03-19|2014-06-25|いすゞ自動車株式会社|Drum brake device|
    RU2480639C1|2011-10-20|2013-04-27|Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Южно-Российский государственный университет экономики и сервиса" |Shoe brake|
    DE102011088848B4|2011-12-16|2015-05-13|Saf-Holland Gmbh|Braking system for commercial vehicles|
    DE102014209502B4|2014-05-20|2020-12-10|Saf-Holland Gmbh|Carrier unit|
    CN109458409B|2018-12-30|2020-12-29|河北百龙汽车配件股份有限公司|Combined anti-lock brake drum for heavy-duty car|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB697478|1978-02-22|
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