公开(公告)号：US20140076079A1

公开(公告)日：2014-03-20

申请号：US13737371

申请日：2013-01-09

Applicant: C.R.F. SOCIETA CONSORTILE PER AZIONI

Inventor： Marco GARABELLO ,  Gianluigi PREGNOLATO ,  Valter PASTORELLO ,  Andrea PIAZZA

IPC: F16H3/08

CPC classification number: F16H3/08 ,  F16F3/12 ,  F16H3/089 ,  F16H3/12 ,  F16H63/302 ,  F16H2003/123 ,  F16H2061/0411 ,  Y02E10/721 ,  Y10T74/19251

Abstract: A gear change device for a motor vehicle has a braking member for stopping a rotation of a primary shaft before engagement of a reverse gear. The braking member includes a lever pivotally mounted on a gearbox about a separate axis with respect to axes of the primary and secondary shafts of the gear change device. The braking lever is controlled by an electrically-driven actuator by a pusher member displaceable by the actuator in a direction substantially tangential with respect to the primary shaft, towards an operative position in which it interposes with a wedge-like action between the braking lever and a fixed abutment wall, so as to press the brake pad against a cooperating part which is connected in rotation with the primary shaft.

Abstract translation: 用于机动车辆的变速装置具有用于在接合倒档之前停止主轴的旋转的制动构件。 该制动构件包括一个可相对于变速装置的主轴和副轴的轴线分别枢转地安装在齿轮箱上的杠杆，该杠杆围绕独立的轴线。 制动杆由电驱动致动器控制，该推动器构件可由致动器沿与主轴大致相切的方向移动到其操作位置，在该位置处，致动器与制动杆和制动杆之间的楔形作用 固定的邻接壁，以便将制动块压靠在与主轴旋转连接的配合部分上。

公开(公告)号：US20130091984A1

公开(公告)日：2013-04-18

申请号：US13649864

申请日：2012-10-11

Applicant: C.R.F. SOCIETA' CONSORTILE PER AZIONI

Inventor： Fabio PESOLA ,  Gianluigi PREGNOLATO ,  Andrea PIAZZA ,  Marco GARABELLO ,  Valter PASTORELLO

IPC: F16H37/06

CPC classification number: F16H37/065 ,  B60K6/36 ,  B60K6/48 ,  F16H3/006 ,  F16H63/18 ,  F16H2200/0047 ,  F16H2200/0052 ,  Y02T10/6221 ,  Y10T74/19014 ,  Y10T74/19051

Abstract: A transmission includes a first primary shaft carrying driving gearwheels for odd gears and reverse, a coaxial second primary shaft carrying driving gearwheels for the even gears, and a secondary shaft carrying idle driven gearwheels meshing with the driving gearwheels. The gearbox has a gear shift device having sliding engagement sleeves each arranged to connect a driven gearwheel corresponding to a given gear for rotation with a secondary shaft. Corresponding sliding shift forks cause an engagement sleeve to slide between a neutral and shift positions. A rotary drum has grooves on its cylindrical surface in which a stud slides, and is connected for translation with a respective shift fork in its sliding direction. An actuation unit rotates the drum stepwise among angular positions corresponding to engagement sleeves' predetermined positions. In a first angular position the engagement sleeves simultaneously engage gear reverse.

Abstract translation: 变速器包括：第一主轴，承载用于奇数档和倒档的主动齿轮;承载用于偶齿轮的主动齿轮的同轴第二主轴;以及承载与驱动齿轮啮合的空转从动齿轮的副轴。 齿轮箱具有一个具有滑动接合套筒的换档装置，每个齿轮装置被配置成将对应于给定齿轮的从动齿轮与副轴相连接。 相应的滑动移位叉使得接合套筒在空档和换档位置之间滑动。 旋转鼓在其圆柱形表面上具有凹槽，螺柱在其中滑动，并且在其滑动方向上与相应的换档拨叉连接以平移。 致动单元在对应于接合套筒的预定位置的角位置之间逐步旋转滚筒。 在第一角度位置，接合套筒同时啮合齿轮反向。

公开(公告)号：US20140083227A1

公开(公告)日：2014-03-27

申请号：US13911292

申请日：2013-06-06

Applicant: C.R.F. Societa Consortile per Azioni

Inventor： Marco GARABELLO ,  Gianluigi PREGNOLATO ,  Valter PASTORELLO ,  Andrea PIAZZA

IPC: F16H59/02

CPC classification number: F16H59/02 ,  F16H63/302 ,  F16H2061/242 ,  F16H2061/246 ,  Y10T74/20177

Abstract: A device for selection and engagement of the gears of a gearbox for motor vehicles has a control shaft mounted rotatable and axially movable with respect to the casing. Mounted on the shaft is a hub having an engagement finger for controlling gear engagement devices, which is configured to oscillate in the space between two fingers of a selection mask, which is mounted on the shaft axially movable therewith and is guided with respect to the casing so as not to follow rotation of the shaft and the hub when a gear is engaged. During displacement of the engagement finger towards an extreme position preliminary to the engagement of the reverse gear, the selection mask is forced to move temporarily into a rotated position, wherein it actuates one or more of the selector devices of the forward gears to enable silent engagement of the reverse gear.

Abstract translation: 用于机动车辆的齿轮箱的齿轮的选择和接合的装置具有可相对于壳体旋转并可轴向移动的控制轴。 安装在轴上的是具有用于控制齿轮接合装置的接合指状物的轮毂，齿轮接合装置被配置为在选择掩模的两个指状物之间的空间中振荡，该选择掩模安装在与其轴向移动并且相对于壳体 以便当齿轮接合时不要跟随轴和轮毂的旋转。 在接合手指朝向倒档的接合初步移动到极限位置时，选择面罩被迫临时移动到旋转位置，其中它致动前进档中的一个或多个选择装置以使得能够静音接合 的倒档。