公开(公告)号：US20070259744A1

公开(公告)日：2007-11-08

申请号：US11661816

申请日：2005-09-01

申请人： Jorma Lehtovaara ,  Marek Frankowski

发明人： Jorma Lehtovaara ,  Marek Frankowski

IPC分类号： F16H7/08

CPC分类号： F16H7/08 ,  F16H7/0831 ,  F16H2007/0806 ,  F16H2007/081 ,  F16H2007/0872

摘要： A tensioner has a base plate and a pivot arm. A first end of the pivot arm is pivotally mounted to the base plate for rotation about a first axis. A spring biases the pivot arm to rotate in a tensioning direction. A push rod assembly is pivotally mounted to the second end of the pivot arm. The push rod assembly is rotatable about a second axis extending parallel to the first axis. The push rod assembly frictionally engages the pivot arm generating frictional forces counter acting and damping the spring bias. When the tensioning guide is forced to rotate in the tensioning direction, the acting moment arm of the push rod force causing the guide to rotate towards the endless drive, is considerable longer at the end of the tensioning stroke than in the beginning of the stroke.

摘要翻译： 张紧器具有基板和枢转臂。 枢转臂的第一端枢转地安装到基板上以围绕第一轴线旋转。 弹簧偏压枢转臂以沿张紧方向旋转。 推杆组件枢转地安装到枢转臂的第二端。 推杆组件可绕平行于第一轴线延伸的第二轴线旋转。 推杆组件摩擦地接合枢转臂，产生摩擦力作用并阻尼弹簧偏压。 当张紧导向器被迫沿张紧方向旋转时，导致引导件朝向环形驱动器旋转的推杆力的作用力臂在张紧行程结束时比在行程开始时相当长。

公开(公告)号：US20060035740A1

公开(公告)日：2006-02-16

申请号：US10497958

申请日：2002-12-03

申请人： Jorma Lehtovaara ,  Jacek Stepniak ,  Marek Frankowski ,  Mats Lipowski ,  Richard Forrest

发明人： Jorma Lehtovaara ,  Jacek Stepniak ,  Marek Frankowski ,  Mats Lipowski ,  Richard Forrest

IPC分类号： F16G9/00

CPC分类号： F16H7/129 ,  F16D41/206 ,  F16H7/0831 ,  F16H7/0834 ,  F16H7/1218 ,  F16H2007/081 ,  F16H2007/084

摘要： A tensioner (10) features a backstop device (40) which allows free rotation of the pivot arm (20) in one direction but not the other. Reverse rotation is prevented by friction that is able to resist torque on the pivot arm (20) under ordinary operating conditions which otherwise could permit belt tooth-skip to occur. In disclosed embodiments, the backstop device (40) includes a stop sleeve (50) and a clamp holder (60) which are axially interlocked and are able to rotate relative to each other. A clutch spring (80) surrounds permits relative rotation between the stop sleeve (50) and the clamp holder (60) in one direction but not the other. A clamp (70) retained within the clamp holder (60) frictionally engages the pivot shaft. A viscous coupling may be used in place of the frictional clamp.

摘要翻译： 张紧器（10）具有支撑装置（40），其允许枢转臂（20）在一个方向上而不是另一个方向上自由旋转。 通过摩擦阻止反向旋转，该摩擦能够在正常操作条件下抵抗枢转臂（20）上的扭矩，否则可能允许皮带齿跳跃发生。 在所公开的实施例中，止回装置（40）包括止动套筒（50）和夹持保持器（60），所述止动套筒轴向互锁并且能够相对于彼此旋转。 离合器弹簧（80）包围允许止动套筒（50）和夹具保持器（60）在一个方向上的相对旋转，而不是另一个。 保持在夹具保持器（60）内的夹具（70）摩擦地接合枢转轴。 可以使用粘性联轴器代替摩擦夹具。

公开(公告)号：US08267819B2

公开(公告)日：2012-09-18

申请号：US12349796

申请日：2009-01-07

申请人： Jorma J Lehtovaara ,  Jacek Stepniak ,  Marek Frankowski ,  Mats K Lipowski ,  Richard A Forrest

发明人： Jorma J Lehtovaara ,  Jacek Stepniak ,  Marek Frankowski ,  Mats K Lipowski ,  Richard A Forrest

IPC分类号： F16H7/08

CPC分类号： F16H7/129 ,  F16D41/206 ,  F16H7/0831 ,  F16H7/0834 ,  F16H7/1218 ,  F16H2007/081 ,  F16H2007/084

摘要： A tensioner having a backstop device which allows free rotation of the pivot arm in a first direction but controls rotation of the pivot arm in a second, opposite direction. The backstop device permits a predetermined, limited amount of free rotation in the second direction and thereafter, employs a braking device to prevent rotation in the second direction if the torque that acts on the pivot art is less than a predetermined threshold.

摘要翻译： 具有止动装置的张紧器，其允许枢转臂沿第一方向自由旋转，但是控制枢转臂在第二相反方向上的旋转。 止回装置允许在第二方向上预定的有限量的自由旋转，此后，如果作用在枢轴技术上的扭矩小于预定阈值，则采用制动装置来防止在第二方向上的旋转。

公开(公告)号：US07901309B2

公开(公告)日：2011-03-08

申请号：US11661816

申请日：2005-09-01

申请人： Jorma J. Lehtovaara ,  Marek Frankowski

发明人： Jorma J. Lehtovaara ,  Marek Frankowski

IPC分类号： F16H7/08

CPC分类号： F16H7/08 ,  F16H7/0831 ,  F16H2007/0806 ,  F16H2007/081 ,  F16H2007/0872

摘要： A tensioner has a base plate and a pivot arm. A first end of the pivot arm is pivotally mounted to the base plate for rotation about a first axis. A spring biases the pivot arm to rotate in a tensioning direction. A push rod assembly is pivotally mounted to the second end of the pivot arm. The push rod assembly is rotatable about a second axis extending parallel to the first axis. The push rod assembly frictionally engages the pivot arm generating frictional forces counter acting and damping the spring bias. When the tensioning guide is forced to rotate in the tensioning direction, the acting moment arm of the push rod force causing the guide to rotate towards the endless drive, is considerable longer at the end of the tensioning stroke than in the beginning of the stroke.

摘要翻译： 张紧器具有基板和枢转臂。 枢转臂的第一端枢转地安装到基板上以围绕第一轴线旋转。 弹簧偏压枢转臂以沿张紧方向旋转。 推杆组件枢转地安装到枢转臂的第二端。 推杆组件可围绕平行于第一轴线延伸的第二轴线旋转。 推杆组件摩擦地接合枢转臂，产生摩擦力作用并阻尼弹簧偏压。 当张紧导向器被迫沿张紧方向旋转时，导致引导件朝向环形驱动器旋转的推杆力的作用力臂在张紧行程结束时比在行程开始时相当长。

公开(公告)号：US06375588B1

公开(公告)日：2002-04-23

申请号：US09547108

申请日：2000-04-11

申请人： Marek Frankowski ,  Jacek Stepniak ,  Jorma J. Lehtovaara

发明人： Marek Frankowski ,  Jacek Stepniak ,  Jorma J. Lehtovaara

IPC分类号： F16H710

CPC分类号： F16H7/1227 ,  F16H7/129 ,  F16H2007/081 ,  F16H2007/0844 ,  F16H2007/0878

摘要： A timing belt tensioner for a motor vehicle engine comprising a pivot that is fixed relative to the motor vehicle engine. A tensioner arm is mounted for pivotal movement on the pivot. The tensioner arm has a friction surface disposed in friction sliding relation with an adjacent surface during the pivotal movement. A belt engaging pulley is mounted for rotation on the tensioner arm. A spring coupled with the tensioner arm biases the arm in a direction tending to force the pulley into tensioning engagement with the belt when the tensioner is installed on the motor vehicle engine. The spring biasing the arm into a working position maintains a predetermined range of tension in the belt during dynamic operating equilibrium of the belt. An anti-kickback stop mechanism is coupled with the arm and stops instantaneous kickback movement of the arm against the belt tensioning direction beyond when the arm is instantaneously moved away from the working position against the belt-tensioning direction in response to instantaneous tightening of the belt. The anti-kickback mechanism adjusts a location of the stop position based upon the working position of the arm.

摘要翻译： 一种用于机动车辆发动机的同步带张紧器，包括相对于机动车辆发动机固定的枢轴。 一个张紧臂安装在枢轴上枢转运动。 张紧臂具有在枢转运动期间与相邻表面摩擦滑动关系的摩擦表面。 安装皮带接合滑轮以在张紧臂上旋转。 当张紧器安装在机动车辆发动机上时，与张紧器臂耦合的弹簧沿着倾向于迫使滑轮与带张紧接合的方向偏压臂。 将臂偏置到工作位置的弹簧在带的动态操作平衡期间保持带中的预定的张力范围。 反向反冲停止机构与臂结合，并且阻止臂抵抗皮带张紧方向的瞬时反冲运动超过当臂立即从皮带张紧方向移动离开工作位置以响应皮带的瞬时紧固时 。 防反冲机构基于臂的工作位置来调节停止位置的位置。

公开(公告)号：US20110256969A1

公开(公告)日：2011-10-20

申请号：US12763507

申请日：2010-04-20

申请人： Marek Frankowski ,  Liviu Tanjala ,  Jacek Stepniak ,  Frank Schimpl

发明人： Marek Frankowski ,  Liviu Tanjala ,  Jacek Stepniak ,  Frank Schimpl

IPC分类号： F16H7/08

CPC分类号： F16H7/1245 ,  F16D13/08 ,  F16H7/1218 ,  F16H2007/081 ,  F16H2007/084 ,  F16H2007/0893

摘要： A tensioner having a closing-type torsion spring that is employed to bias a pivot arm about a pivot shaft. The tensioner includes a damper that continuously contacts an inside surface of the torsion spring to dampen torsional vibration transmitted through the torsion spring.

摘要翻译： 具有闭合型扭转弹簧的张紧器，其用于将枢转臂围绕枢转轴偏置。 张紧器包括阻尼器，其连续地接触扭转弹簧的内表面以抑制通过扭转弹簧传递的扭转振动。

公开(公告)号：US20090011881A1

公开(公告)日：2009-01-08

申请号：US11908636

申请日：2006-03-20

申请人： Jorma J. Lehtovaara ,  Marek Frankowski

发明人： Jorma J. Lehtovaara ,  Marek Frankowski

IPC分类号： F16H7/12

CPC分类号： F16H7/1281 ,  F16H7/0848 ,  F16H2007/081 ,  F16H2007/0846 ,  F16H2007/0878

摘要： A tensioner enables easy and reliable reinstallation of the tensioner and belt in the field service while simultaneously making it possible to utilize a one-way clutch device to ensure continuous belt tension control without cumbersome manual alignment and/or realignment procedures. The tensioner has a pivot shaft configured for mounting on an engine surface. A tensioner arm is mounted on the pivot shaft for pivotal movement between a free arm stop position and premount stop position. A belt-engaging pulley is mounted for rotation on the tensioner arm. A base cup is rotatably mounted around an end of the pivot shaft. The base cup has an arcuate slot having a free arm stop end and a premount stop end. The tensioner arm cooperates with the arcuate slot limiting the pivotal movement of the tensioner arm. A spring is coupled between the tensioner arm and the base cup biasing the tensioner arm in a belt-tensioning direction. An anti-kickback stop mechanism engages the pivot shaft and has a lost motion connection with the tensioner arm wherein the tensioner arm moves through a free range without engaging the anti-kickback mechanism. The tensioner arm 1) rotates the anti-kickback mechanism as the tensioner arm moves beyond the free range towards the premount stop position and 2) enables the anti-kickback mechanism as the tensioner arm moves beyond the free range towards the free arm stop position, limiting travel of the tensioner arm therebeyond. The spring is fixable relative to the pivot shaft upon the tensioner being mounted on the engine surface.

摘要翻译： 张紧器能够在现场服务中容易且可靠地重新安装张紧器和皮带，同时使得可以使用单向离合器装置来确保连续的皮带张力控制，而无需繁琐的手动对准和/或重新对准程序。 张紧器具有构造成用于安装在发动机表面上的枢轴。 张紧臂安装在枢轴上，用于在自由臂停止位置和预停止位置之间枢转运动。 安装皮带接合滑轮以在张紧臂上旋转。 基座杯围绕枢转轴的端部可旋转地安装。 底杯具有弓形槽，其具有自由臂停止端和预安装止挡端。 张紧臂与弓形槽配合，限制张紧臂的枢转运动。 弹簧联接在张紧器臂和基座杯之间，以张紧张力方向偏压张紧器臂。 防反冲停止机构接合枢转轴并且与张紧器臂具有空动连接，其中张紧器臂移动自由范围而不接合防反冲机构。 张紧器臂1）当张紧器臂移动超过自由范围朝向预安置停止位置时，使防反冲机构旋转，以及2）当张紧器臂朝向自由臂停止位置移动超过自由范围时，能够实现防反冲机构， 限制张紧臂的行程。 弹簧在张紧器安装在发动机表面上时可相对于枢轴固定。

公开(公告)号：US06422962B1

公开(公告)日：2002-07-23

申请号：US09547111

申请日：2000-04-11

申请人： Jorma J. Lehtovaara ,  K. Mats Lipowski ,  Marek Frankowski ,  Jacek Stepniak

发明人： Jorma J. Lehtovaara ,  K. Mats Lipowski ,  Marek Frankowski ,  Jacek Stepniak

IPC分类号： F16H722

CPC分类号： F16H7/1236 ,  F16H7/0829 ,  F16H7/0836 ,  F16H2007/081 ,  F16H2007/084 ,  F16H2007/0853 ,  F16H2007/0878

摘要： A tensioner for an endless belt comprising a stationary structure on which a pivotal tension arm with an idler pulley is mounted. A spring between the tension arm and the stationary structure acts to bias the pulley against the belt, thereby applying tension. The invention includes a one-way device that is operable in response to the extent of pivotal movement of the tension arm in the forward direction to establish different positions at which pivotal movement in the return direction is limited. A damping system is used to restrict pivotal movement of the tension arm as a result of sudden short-time vibratory movements or dynamic vibrations in cold conditions.

摘要翻译： 一种用于环形带的张紧器，包括固定结构，安装有具有惰轮的枢转张力臂。 张力臂和固定结构之间的弹簧用于将滑轮偏压在皮带上，从而施加张力。 本发明包括单向装置，该单向装置响应于张力臂在向前方向的枢转运动的程度而可操作，以建立在返回方向上的枢转运动被限制的不同位置。 阻尼系统用于限制张力臂的枢转运动，这是由于在寒冷条件下突然的短时振动或动态振动。

公开(公告)号：US08613680B2

公开(公告)日：2013-12-24

申请号：US12763507

申请日：2010-04-20

申请人： Marek Frankowski ,  Liviu Tanjala ,  Jacek Stepniak ,  Frank Schimpl

发明人： Marek Frankowski ,  Liviu Tanjala ,  Jacek Stepniak ,  Frank Schimpl

IPC分类号： F16H7/12

CPC分类号： F16H7/1245 ,  F16D13/08 ,  F16H7/1218 ,  F16H2007/081 ,  F16H2007/084 ,  F16H2007/0893

摘要： A tensioner having a closing-type torsion spring that is employed to bias a pivot arm about a pivot shaft. The tensioner includes a damper that continuously contacts an inside surface of the torsion spring to dampen torsional vibration transmitted through the torsion spring.

摘要翻译： 具有闭合型扭转弹簧的张紧器，其用于将枢转臂围绕枢转轴偏置。 张紧器包括阻尼器，其连续地接触扭转弹簧的内表面以抑制通过扭转弹簧传递的扭转振动。

公开(公告)号：US07980976B2

公开(公告)日：2011-07-19

申请号：US11813463

申请日：2006-01-18

申请人： Jacek Stepniak ,  Jorma J. Lehtovaara ,  Marek Frankowski

发明人： Jacek Stepniak ,  Jorma J. Lehtovaara ,  Marek Frankowski

IPC分类号： F16H7/10

CPC分类号： F16H7/1281 ,  F16H2007/081 ,  F16H2007/0846 ,  F16H2007/0878 ,  F16H2007/088

摘要： A tensioner for tensioning a flexible drive means, such as a timing belt or chain, includes a pulley to contact the belt. The pulley is mounted on a tensioner arm and the tensioner arm can be rotated about a pivot shaft mounted to the tensioner by a spring. The axis about which the pulley rotates is spaced from the axis of the rotation of the tensioner arm with respect to the pivot shaft and the spacing of these axes of rotation results in the pulley moving through an eccentric towards or away from the belt when the tensioner arm is rotated. A stop is used to limit the range of movement of the tensioner arm between a desired range of movement defined by a free arm stop and a backstop. The position of the stop is adjustable by an installer. The angular range of movement of the tensioner arm is adjustable from a position suitable for installation of the tensioner to a position suitable for operation of the installed tensioner. In one embodiment, the movement of the stop from the installation position to the nominal operating position also compensates the spring.

摘要翻译： 用于张紧诸如同步带或链条的柔性驱动装置的张紧器包括用于接触皮带的皮带轮。 滑轮安装在张紧器臂上，并且张紧器臂可以通过弹簧围绕安装到张紧器的枢轴旋转。 滑轮旋转的轴线相对于枢轴与张紧器臂的旋转轴线间隔开，并且这些旋转轴线的间隔导致滑轮在张紧器时朝向或远离皮带轮移动， 手臂旋转。 止动器用于将张紧器臂的移动范围限制在由自由臂停止器和止回阀所限定的期望运动范围之间。 停止位置可由安装人员调整。 张紧器臂的角度范围可以从适于安装张紧器的位置调整到适合于安装的张紧器的操作的位置。 在一个实施例中，止动件从安装位置到标称操作位置的移动还补偿弹簧。