A hydraulic circuit mechanically linked to a panel and agricultural harvesters including the same. The hydraulic circuit can be used to facilitate the transition of hydraulic states from a quick speed to a slow speed, when opening and closing the panel. The hydraulic circuit includes a restrictive orifice and a fluid stop valve that, when opened, diverts the path of pressurized fluid away from a hydraulic actuator during the actuator's extension. The diversion of pressurized fluid away from the hydraulic cylinder or through the restrictive orifice substantially reduces the speed at which the panel opens or closes.

A temperature-independent rotation damper 100 is presented. A housing 108 and a piston 102, between which a viscous liquid is located in annular gaps 118, 120, rotate one around the other. When the temperature falls, the damping by the viscous liquid increases. This effect is countered by reducing the effective area which constitutes the braking action, or by enlarging the volume in the annular gaps 118, 120. As the drive, a material having a positive expansion coefficient is used, which material drives a piston 132. In this way, the damping of the rotation damper 100 is broadly practically independent of the temperature.

A temperature-independent rotation damper 100 is presented. A housing 108 and a piston 102, between which a viscous liquid is located in annular gaps 118, 120, rotate one around the other. When the temperature falls, the damping by the viscous liquid increases. This effect is countered by reducing the effective area which constitutes the braking action, or by enlarging the volume in the annular gaps 118, 120. As the drive, a material having a positive expansion coefficient is used, which material drives a piston 132. In this way, the damping of the rotation damper 100 is broadly practically independent of the temperature.

A braking device for a movable door leaf includes an electric braking motor, operated as a generator, for generative damping of the movement of the door leaf, the motor shaft is coupleable with the axis of rotation of the door leaf, and a control unit for controlling and/or regulating the electric braking motor. Between the axis of rotation of the door leaf and the motor shaft of the electric braking motor or between the axis of rotation of the door leaf and a separate generator, serving as a power supply of the control unit, there is provided a continuously variable transmission unit, which is controlled and/or regulated by means of a preferably purely mechanical control such that the motor shaft of the electric braking motor or the separate generator can be driven at a rotational speed substantially independent of the rotational speed of the rotational axle of the door leaf. A door closer with a rotatable door closer axis coupleable with a door leaf, cooperating with a mechanical energy storage device and a braking device is also disclosed.

The invention relates to a furniture hinge (10) with a hinge arm (20) and a fastening portion (30), wherein the hinge arm (20) and the fastening portion (30) are pivotably connected to one another via a multi-axis articulated connection (40), and wherein a damping element (60), which damps in a deflection direction, for damping the movement of the hinge arm (20) and a spring (76) for adjusting the hinge arm (20) with respect to the fastening portion (30) are provided. It is provided here that the damping element (60) is mounted in such a way that, during a folding movement of the hinge arm (20) from a first end position into a second end position, a maximum or a minimum deflection of the damping element (60) is carried out within an adjusting movement of the damping element (60) caused by said folding movement. As a result, a furniture hinge which can be produced cost-effectively and which allows damped opening and closing of the hinge arm is provided.

The invention relates to a furniture hinge (10) with a hinge arm (20) and a fastening portion (30), wherein the hinge arm (20) and the fastening portion (30) are pivotably connected to one another via a multi-axis articulated connection (40), and wherein a damping element (60), which damps in a deflection direction, for damping the movement of the hinge arm (20) and a spring (76) for adjusting the hinge arm (20) with respect to the fastening portion (30) are provided. It is provided here that the damping element (60) is mounted in such a way that, during a folding movement of the hinge arm (20) from a first end position into a second end position, a maximum or a minimum deflection of the damping element (60) is carried out within an adjusting movement of the damping element (60) caused by said folding movement. As a result, a furniture hinge which can be produced cost-effectively and which allows damped opening and closing of the hinge arm is provided.

A spring force indicator for a door closure having a spring force adjuster comprises a drive wheel coupled to the spring force adjuster for rotation therewith and a driven wheel. The driven wheel includes a disc and a post extending from the disc, the post being disposed in a bore formed in a front surface of the door closure and adapted to engage the drive wheel for rotation therewith. A cover being disposed on the end of the door closure and configured to cover the drive wheel and the driven wheel. The cover includes a sidewall, a central aperture for receiving the spring force adjuster, a second aperture disposed between the central aperture and the sidewall, and second indicia disposed around the second aperture. The disc includes first indicia visible through the second aperture which cooperates with the second indicia to indicate a measure of spring force.

A spring force indicator for a door closure having a spring force adjuster comprises a drive wheel coupled to the spring force adjuster for rotation therewith and a driven wheel. The driven wheel includes a disc and a post extending from the disc, the post being disposed in a bore formed in a front surface of the door closure and adapted to engage the drive wheel for rotation therewith. A cover being disposed on the end of the door closure and configured to cover the drive wheel and the driven wheel. The cover includes a sidewall, a central aperture for receiving the spring force adjuster, a second aperture disposed between the central aperture and the sidewall, and second indicia disposed around the second aperture. The disc includes first indicia visible through the second aperture which cooperates with the second indicia to indicate a measure of spring force.

Double door system (1) comprising an understriking door leaf (2), an overstriking door leaf (3) and a mechanical brake arrangement (100, 200, 300, 400), wherein the mechanical brake arrangement (100, 200, 300, 400) comprises a braking means (101, 102, 201, 202, 301, 302, 401, 402) arranged to brake the movement of the overstriking door leaf (3), and a first controlling means (103, 203, 303, 403) and a second controlling means (104, 204, 304, 404), which are mechanically operated, wherein the first controlling means (103, 203, 303, 403) is arranged to control the braking of the braking means (101, 102, 201, 202, 301, 302, 401, 402) in relation to the position of the understriking door leaf (2). Mechanical brake arrangement (100, 200, 300, 400) for controlling the movement of one of the door leafs of the double door system. A door operator system (10) comprising the mechanical brake arrangement (100, 200, 300, 400).

Double door system (1) comprising an understriking door leaf (2), an overstriking door leaf (3) and a mechanical brake arrangement (100, 200, 300, 400), wherein the mechanical brake arrangement (100, 200, 300, 400) comprises a braking means (101, 102, 201, 202, 301, 302, 401, 402) arranged to brake the movement of the overstriking door leaf (3), and a first controlling means (103, 203, 303, 403) and a second controlling means (104, 204, 304, 404), which are mechanically operated, wherein the first controlling means (103, 203, 303, 403) is arranged to control the braking of the braking means (101, 102, 201, 202, 301, 302, 401, 402) in relation to the position of the understriking door leaf (2). Mechanical brake arrangement (100, 200, 300, 400) for controlling the movement of one of the door leafs of the double door system. A door operator system (10) comprising the mechanical brake arrangement (100, 200, 300, 400).