Belt tensioner with spring actuated band brake damping
    1.
    发明授权
    Belt tensioner with spring actuated band brake damping 失效
    皮带张紧器带有弹簧制动带制动器阻尼

    公开(公告)号:US4725260A

    公开(公告)日:1988-02-16

    申请号:US29695

    申请日:2987-03-24

    IPC分类号: F16H7/08 F16H7/12

    摘要: A belt tensioning device having an improved damping mechanism for damping movements of the pivoted structure rotatably carrying the pulley with respect to the fixed structure. The damping mechanism includes a strap and a ring mounted on their respective fixed and pivoted structures and with respect to one another such that the strap engages the ring with a gripping action sufficient to provide (1) a relatively high resistance to frictional sliding movement between the strap and ring in one direction correspond to the direction of untensioning of the belt with the pulley and (2) a relatively low resistance to frictional sliding movement between the strap and ring in an opposite direction corresponding to the direction of belt tensioning. A spring is included in the mount for enabling the relatively high resistance and relatively low resistance to vary in response to the existence of predetermined vibrations such that the gripping action between strap and ring is relieved sufficient to enable movement therebetween in both directions to take place at substantially reduced resistance levels.

    Serpentine drive with coil spring alternator connection
    2.
    发明授权
    Serpentine drive with coil spring alternator connection 失效
    带螺旋弹簧交流发电机连接的蛇形驱动

    公开(公告)号:US5139463A

    公开(公告)日:1992-08-18

    申请号:US710455

    申请日:1991-06-05

    摘要: A serpentine belt drive system for an automotive vehicle in which the sequence of driven assemblies includes an alternator assembly comprising a housing and an armature assembly mounted in the housing for rotation about an armature axis. A hub structure is carried by the armature assembly outwardly of the housing for rotation therewith about the armature axis. A coil spring is disposed in operative relation between the alternator pulley and the hub structure for transmitting the driven rotational movements of the alternator pulley by the serpentine belt to the hub structure such that the armature assembly is rotated in the same direction as the alternator pulley while being capable of instantaneous relative resilient rotational movements in opposite directions with respect to the alternator pulley during the driven rotational movement thereof.

    Serpentine drive with coil spring-one-way clutch alternator connection
    3.
    发明授权
    Serpentine drive with coil spring-one-way clutch alternator connection 失效
    SERPENTINE驱动器与线圈弹簧 - 单向离合器交换器连接

    公开(公告)号:US5156573A

    公开(公告)日:1992-10-20

    申请号:US710454

    申请日:1991-06-05

    摘要: A serpentine belt drive system for an automotive vehicle in which the sequence of driven assemblies includes an alternator assembly comprising a housing and an armature assembly mounted in the housing for rotation about an armature axis. A hub structure is carried by the armature assembly outwardly of the housing for rotation therewith about the armature axis. A coil spring and one-way clutch mechanism is disposed in operative relation between the alternator pulley and the hub structure for (1) transmitting the driven rotational movements of the alternator pulley by the serpentine belt to the hub structure such that the armature assembly is rotated in the same direction as the alternator pulley while being capable of instantaneous relative resilient rotational movements in opposite directions with respect to the alternator pulley during the driven rotational movement thereof and (2) allowing the hub structure and hence the armature assembly to rotate at a speed in excess of the rotational speed of said alternator pulley when the speed of the engine output shaft is decelerated to an extent sufficient to establish the torque between said alternator pulley and said hub structure at a predetermined negative level.

    Timing belt tensioner with damped constant spring tensioning and belt
tooth disegagement prevention
    4.
    发明授权
    Timing belt tensioner with damped constant spring tensioning and belt tooth disegagement prevention 失效
    定时带张紧器,具有阻尼恒定弹簧张紧和皮带齿状病变防止

    公开(公告)号:US4583962A

    公开(公告)日:1986-04-22

    申请号:US679476

    申请日:1984-12-07

    IPC分类号: F16H7/08 F16H7/12

    摘要: A timing belt tensioning device comprising a fixed structure having a spring pressed pivoted structure mounted thereon for pivotal movement about a first axis between first and second limiting positions. The pivoted structure carries a timing belt engaging pulley for rotational movement about a second axis parallel with the first axis. A one-way clutch mechanism is provided for permitting pivotal movement of the pivoted structure in a direction toward a second limiting position and for limiting the pivotal movement of the pivoted structure in an opposite direction toward the first limiting position beyond a predetermined distance measured from the nearest position of the pivoted structure to the second limiting position. The predetermined distance has a maximum dimension such as to prevent loosening of the timing belt engaged by the pulley sufficient to allow disengagement of a tooth thereof with a tooth of a timing pulley and a minimum dimension such as to accommodate normal operating low amplitude movements and thermal expansion during operation. A damping system is provided for damping the operating movements of the pivoted structure permitted by the one-way clutch mechanism.

    摘要翻译: 一种同步带张紧装置,包括固定结构,其具有安装在其上的弹簧按压的枢转结构,用于围绕第一和第二限位位置之间的第一轴线枢转运动。 枢转结构承载同步带接合滑轮,用于围绕平行于第一轴线的第二轴线旋转运动。 提供单向离合器机构,用于允许枢转结构在朝向第二限位位置的方向上枢转运动,并且用于限制枢转结构沿相反方向朝向第一限位位置的枢转运动超过从 枢转结构的最近位置到第二限位位置。 预定距离具有最大尺寸,以防止由滑轮接合的同步皮带的松动,足以允许其齿与同步皮带轮的齿脱离,并且具有最小尺寸,以适应正常运行的低振幅运动和热 运行期间扩张。 提供阻尼系统,用于阻尼由单向离合器机构允许的枢转结构的操作运动。

    Belt tensioner with frustoconical pivot bearing
    5.
    发明授权
    Belt tensioner with frustoconical pivot bearing 失效
    带截止圆锥轴承的皮带张紧器

    公开(公告)号:US4698049A

    公开(公告)日:1987-10-06

    申请号:US850700

    申请日:1986-04-11

    IPC分类号: F16H7/08 F16H7/12

    摘要: A belt tensioner in which the bearing for mounting the pulley carrying pivoted structure on the fixed structure comprises a frustoconical sleeve bearing having a frustoconical exterior surface and a frustoconical interior surface engaged between annular portions of the two structures. The frustoconical surface of one of the annular portions is (1) formed on the exterior periphery thereof and (2) disposed in engagement with the interior bearing frustoconical surface. The one annular portion has a load center point disposed on the pivotal axis of the pivoted structure. The other annular portion has a load center point disposed on a line disposed within a plane passing through the pivotal axis of the pivoted structure and the rotational axis of the pulley corresponding to the one line of the two lines of intersection of the bearing frustoconical surface with the plane through which the radially inward force component transmitted by the pivoted structure is applied to the sleeve bearing. The load center points are positioned such that the radially inward force component transmitted by the pivoted structure and resisted by the fixed structure is transmitted generally from one load center point to the other along a line extending between the points which line is perpendicular to and bisects the one line so that the radially inward force component transmitted by the pivoted structure to the sleeve bearing is distributed evenly throughout the axial extent of the sleeve bearing.

    摘要翻译: 一种皮带张紧器,其中用于将承载枢转结构的皮带轮安装在固定结构上的轴承包括具有截头圆锥形外表面和截头圆锥形内表面的截头圆锥形套筒轴承,所述截头圆锥形外壳表面接合在两个结构的环形部分之间。 其中一个环形部分的截头圆锥形表面形成在其外周上,(2)设置成与内部承载截头圆锥形表面接合。 一个环形部分具有设置在枢转结构的枢转轴线上的载荷中心点。 另一个环形部分具有设置在穿过枢转结构的枢转轴线的平面内的线上的载荷中心点,并且滑轮的旋转轴线对应于轴承截头圆锥形表面与两个截面圆锥形表面的两条交线的一条线 通过枢转结构传递的径向向内的力分量施加到套筒轴承的平面。 负载中心点被定位成使得由枢转结构传递并且被固定结构抵抗的径向向内的力分量通常从一个负载中心点向另一个沿着在垂直于和平分的点之间延伸的线传播 使得由枢转结构传递到套筒轴承的径向向内的力分量均匀地分布在套筒轴承的整个轴向范围内。

    Belt tensioner with spring actuated band brake damping
    6.
    再颁专利
    Belt tensioner with spring actuated band brake damping 失效
    皮带张紧器带有弹簧制动带制动器阻尼

    公开(公告)号:USRE34616E

    公开(公告)日:1994-05-24

    申请号:US994500

    申请日:1992-12-21

    IPC分类号: F16H7/08 F16H7/12

    摘要: A belt tensioning device having an improved damping mechanism for damping movements of the pivoted structure rotatably carrying the pulley with respect to the fixed structure. The damping mechanism includes a strap and a ring mounted on their respective fixed and pivoted structures and with respect to one another such that the strap engages the ring with a gripping action sufficient to provide (1) a relatively high resistance to frictional sliding movement between the strap and ring in one direction correspond to the direction of untensioning of the belt with the pulley and (2) a relatively low resistance to frictional sliding movement between the strap and ring in an opposite direction corresponding to the direction of belt tensioning. A spring is included in the mount for enabling the relatively high resistance and relatively low resistance to vary in response to the existence of predetermined vibrations such that the gripping action between strap and ring is relieved sufficient to enable movement therebetween in both directions to take place at substantially reduced resistance levels.

    摘要翻译: 一种带张紧装置,其具有改进的阻尼机构,用于阻止枢转结构相对于固定结构可旋转地承载滑轮的运动。 阻尼机构包括安装在它们各自的固定和枢转结构上并相对于彼此的带子和环,使得带子具有与足够的夹持作用接合环,该夹持动作足以提供(1)相对较高的抵抗在 带和环在一个方向上对应于带与皮带轮的未张紧的方向,以及(2)相对于带张力方向的相反方向,带和环之间的摩擦滑动运动相对较低的阻力。 安装件中包括弹簧,以使得相对较高的电阻和相对低的电阻响应于预定振动的存在而变化,使得带和环之间的夹持动作被释放足以使其在两个方向上的移动发生在 大大降低电阻值。

    Method of pulley manufacture and product
    7.
    发明授权
    Method of pulley manufacture and product 失效
    滑轮制造方法及产品

    公开(公告)号:US4273547A

    公开(公告)日:1981-06-16

    申请号:US76279

    申请日:1979-09-17

    申请人: Klaus K. Bytzek

    发明人: Klaus K. Bytzek

    IPC分类号: B21D53/26 F16H55/44 B21K1/42

    摘要: This invention relates to a novel method of making pulleys and pulley blanks from sheet metal. The sheet metal is stamped into pulley blanks having an upstanding cylindrical wall, the cylindrical wall is then thickened by being partially collapsed axially, followed by contacting with a roller. The roller can have a plurality of v-shaped grooves on its surface, to form a pulley for use with a poly-v belt.

    摘要翻译: 本发明涉及一种从金属板制造滑轮和滑轮坯料的新方法。 钣金被冲压成具有直立的圆柱形壁的滑轮坯料,然后通过轴向部分地折叠而使圆柱形壁变厚,随后与辊接触。 该辊可以在其表面上具有多个V形槽,以形成用于与poly-v带一起使用的滑轮。

    Tensioner
    8.
    发明授权
    Tensioner 有权
    张紧器

    公开(公告)号:US06464604B1

    公开(公告)日:2002-10-15

    申请号:US09456307

    申请日:1999-12-08

    IPC分类号: F16H714

    摘要: A tensioner for tensioning engine driven driving elements, such as belts or chains, is disclosed. In accordance with one aspect of the invention, the tensioner is initially installed with the pivot structure spaced past the perpendicular angular position thereof. In accordance with another aspect of the invention, the tension required to move the pivot structure to the end of its range of angular positions is at least 75% more than at the hot engine angular position thereof. In accordance with another aspect of the invention, the tensioner has a stop at the maximum travel position thereof and the tension required to move the pivot structure to its maximum travel position is at least 75% more than at the hot engine angular position thereof. In accordance with a still further aspect of the invention, the tension required to move the pivot structure to a potential tooth skip angular position is greater than the maximum tension the engine is capable of creating.

    摘要翻译: 公开了用于张紧发动机驱动的驱动元件(例如皮带或链条)的张紧器。 根据本发明的一个方面,张紧器最初安装有枢转结构,隔开其垂直的角度位置。 根据本发明的另一方面,将枢转结构移动到其角度位置范围的终点所需的张力比在其热发动机角位置处的至少75%。 根据本发明的另一方面,张紧器在其最大行进位置处具有止动件,并且将枢转结构移动到其最大行进位置所需的张力比其热发动机角位置处的至少75%。 根据本发明的另一方面,将枢转结构移动到潜在的齿跳跃角位置所需的张力大于发动机能够产生的最大张力。

    Rotary hydraulic automatic tensioner
    9.
    发明授权
    Rotary hydraulic automatic tensioner 有权
    旋转液压自动张紧器

    公开(公告)号:US6165091A

    公开(公告)日:2000-12-26

    申请号:US199557

    申请日:1998-11-25

    摘要: Disclosed is a tensioner for use in an engine. The tensioner comprises a fixed structure that fixes to the engine. A movable structure is mounted for movement relative to the fixed structure in a belt tensioning and opposite directions. A pulley member has a belt engaging surface that engages with the belt. One of the fixed and movable structures has an interior surface defining a fluid chamber containing fluid and the other includes a chamber dividing structure. The chamber dividing structure defines first and second chamber portions on opposing sides thereof. A biasing element biases the movable structure in the tensioning direction to tension the belt. Relative movement of the movable structure in the tensioning direction displaces fluid from the first to the second chamber portion and increases fluid pressure in the first chamber portion and decreases fluid pressure in the second chamber portion, and the reverse occurs during movement of the movable structure in the opposite direction. The chamber dividing structure allows the fluid to flow between the chamber portions in a restricted manner so as to yieldingly resist the relative movement of the movable structure and thereby dampen such movement. The chamber dividing structure is constructed such that the fluid flow restriction is greater when the movable structure moves in the opposite direction than in the tensioning direction, thereby providing the movable structure with greater resistance to movement in the opposite direction than in the tensioning direction.

    摘要翻译: 公开了一种用于发动机的张紧器。 张紧器包括固定在发动机上的固定结构。 可移动结构被安装成在张紧张力和相反方向上相对于固定结构移动。 滑轮构件具有与带接合的​​皮带接合表面。 固定和可移动结构中的一个具有限定包含流体的流体室的内表面,另一个包括室分隔结构。 腔室分隔结构在其相对侧上限定第一和第二腔室部分。 偏压元件在张紧方向上偏压可移动结构以拉紧带。 可移动结构在张紧方向上的相对运动使流体从第一腔室部分移动到第二腔室部分,并且增加第一腔室部分中的流体压力并降低第二腔室部分中的流体压力,并且在可移动结构体的运动期间发生相反 相反的方向。 腔室分隔结构允许流体以限制的方式在腔室部分之间流动,以便有效地抵抗可移动结构的相对运动,从而抑制这种运动。 腔室分隔结构被构造成使得当可移动结构沿与张紧方向相反的方向移动时,流体流动限制较大,从而为可移动结构提供比在张紧方向上相反方向更大的阻力运动。

    Tensioner with increased arcuate movement
    10.
    发明授权
    Tensioner with increased arcuate movement 失效
    张紧器增加弓形运动

    公开(公告)号:US4816012A

    公开(公告)日:1989-03-28

    申请号:US94864

    申请日:1987-09-10

    申请人: Klaus K. Bytzek

    发明人: Klaus K. Bytzek

    IPC分类号: F02B67/06 F16H7/12 F16H7/08

    CPC分类号: F16H7/1218 F02B2275/06

    摘要: A belt tensioner comprising a pivoted structure carrying a pulley for rotation about a rotational axis and mounted on a fixed structure for pivotal movement between an increased range of angular movement. The pulley is operatively positioned with respect to its rotational axis and the pivotal axis of the pivoted structure such that the lever arm to the pivotal axis through which the generally constant belt load force acts on the pivoted structure increases at a decreasing rate and then decreases at an increasing rate throughout the range of movement of the pulley between its first and second positions in a direction toward the second position. The spring assembly is operatively associated with the pivoted structure so as to apply a spring torque to the pivoted structure which increases at a decreasing rate and then decreases at an increasing rate throughout the range of movement of the pulley between its first and second positions in a direction toward said second position.