Heidelberger Druckmaschinen Ag

Roland Lorenz

Norbert Thunker

Gerhard Pollich

Nikolaus Spiegel

Werner Joss

A cam mechanism for periodically swiveling a swivel device includes a rotatable first cam disk carrying a first cam serving as a main cam, a rotatable second cam disk carrying a second cam serving as an auxiliary cam, a first roller engaging the first cam under spring force and rollable on the first cam during rotation of the first cam disk, a second roller engaging the second cam under spring force and rollable on the second cam during rotation of the second cam disk, and a lever arrangement swivelable by the two rollers and having at least one spring for providing the spring force, including a swivel lever swivelable about a swivel axis and carrying the first roller, a swiveling movement corresponding to the first cam being impresable by the swivel lever upon the swivel device, the swivel axis and the two rollers having axes of rotation extending parallel to one another, and normals to the axes of rotation of the two rollers intersecting one another on the axis of rotation of the swivel axis and forming and angle .alpha. which is a measure for the spring force under which the two rollers engage the two cams, the auxiliary cam having a contour for varying the angle .alpha. as a function of inertial forces resulting, respectively, from accelerations and decelerations of the lever arrangement and of machine parts connected therewith during rotation of the two cam disks.

Cam mechanism for periodically swiveling a swivel device

Transmission system for forming cyclical motion from rotational motion including a device having a rotating part and at least one control lever set into cyclical motion by rotational motion of the rotating part, the one control lever and the rotating part being in cooperative engagement whereby a varying force is applied to the control lever producing a torque fluctuation in the rotational motion, includes another device for producing cyclical motion, the other device being in operative engagement with the rotating part, and spring means for applying a force to the rotating part so as to compensate for the torque fluctuation.

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Heidelberg, Germany

Roland Lorenz