Abstract:
Dispositif de manipulation de charge (1) comportant un manipulateur de charge (10) comportant au moins deux segments (13, 18) articulés entre eux, dont un segment de flèche (13) également articulé sur un châssis (12) et un segment de balancier (18) qui comprend une extrémité destinée à recevoir une charge (20) à manipuler, le dispositif de manipulation de charge (1) comprend des moyens d'équilibrage (41, 23, 24) de sorte que le manipulateur de charge (10) soit stable en toute position qu'il porte la charge ou non et des moyens de guidage (50, 60, 70) distincts des moyens d'équilibrage pour contraindre la position du manipulateur de charge (10).
Abstract:
A variable displacement piston assembly including a plurality of cylinders, each cylinder having an axis substantially parallel to the axis of the other cylinders, a plurality of pistons, one piston in each cylinder, and each piston and corresponding cylinder having a displacement. The assembly also including a transition arm having a connector pin for each piston, each connector pin connecting each piston to said transition arm, a drive shaft connected to the transition arm and a control shaft rotatably coupled to the drive shaft, the control shaft being movable to adjust the displacement of the piston assembly.
Abstract:
A laundry machine is disclosed. The overall weight of the vibrating system provided in the laundry machine according to the exemplary embodiment of the present invention may be reduced and the vibration of the drum may be stabilized by new means for adding weights. In addition, the front of the drum may be prevented from falling downward because of the introduction of laundry.
Abstract:
A counter-balancing mechanism comprising a support (1) for supporting an article to be tilted about a horizontal axis; a cam (4) movable with the support, the cam surface of which varies in a direction normal to the plane of rotation of the support; and a cam follower (9) loaded by a resilient means (12) whereby, as the support rotates, the cam follower and resilient means causes a return force to be exerted to substantially conteract the torque caused by the rotation of the support. Preferably, a means for varying the return force in accordance with a load on the support is provided, wherein the cam and resilient means is able to rotate about a centre offset from the central axis about which the support rotates and including means for setting a variable reaction point, against which the cam follower force reacts, at or offset from said central axis, thereby to cause the return force exerted due to rotation of the support about a particular angle to be varied.
Abstract:
A hydraulic pump includes a housing, at least two pistons mounted to the housing to rotate relative to the housing, and a transition arm coupled to each of the pistons to rotate therewith. The transition arm is set at a predetermined angle relative to a longitudinal axis of the pump. An adjustment mechanism sets the transition arm at the predetermined angle. A cylinder is mounted within the housing to rotate relative to the housing and defines pump cavities for receiving the pistons. A face valve defines inlet and outlet channels in fluid communication with the pump cavities. An apparatus for varying the output volume of a piston assembly includes at least two pistons, a transition arm coupled to each of the at least two pistons, and a rotatable member. The transition arm includes a nose pin, and the rotatable member is coupled to the transition arm nose pin. A radial position of the nose pin relative to an axis of rotation of the rotatable member is adjustable while the rotatable member remains axially stationary.
Abstract:
A vibration absorber for a vehicle includes a support arm rotatably coupled at a first end to the vehicle frame. A mass is coupled to a second end of the support arm, and a spring element is associated with the frame and the support arm. The spring element provides a biasing force that resist rotation of the support arm away from a neutral position.
Abstract:
Counterweight, connectable to a washing machine tub (2), comprising an hollow shell (3) of U-shaped cross-section for containing a concrete ballast mass (4) poured therein, said shell (3) is integrally provided in one piece with two foldable members (5) adapted to close enlarged lower portions (6) of said shell (4) in order to encapsulate said concrete ballast mass (4).
Abstract:
The invention provides an automatic balancing device for counterbalancing an out-of-balance mass present in a rotating body. The automatic balancing device (50) comprises a chamber (56) having an outer wall (54) and an axis (18), first and second counterbalancing masses (80a, 80b) constrained to move freely in a circular path about the axis (18) and within the chamber (56), and a viscous fluid (60) provided in the chamber (56) so as to provide viscous coupling between the outer wall (54) of the chamber (56) and each of the counterbalancing masses (80a, 80b). The counterbalancing masses (80a, 80b) are adapted and/or arranged such that, in use, the first counterbalancing mass (80a) leads the second counterbalancing mass (80b). Constraining means (90a, 92a, 94a, 94b) are provided so as to prevent the first counterbalancing mass (80a) from leading the second counterbalancing mass (80b) by more than substantially 180° when the device is in use. This arrangement minimises the excursion of the rotating body at the critical speed. Such an arrangement has application particularly in the field of washing machines in which the position and size of the out-of-balance mass is unpredictable and there is a need to increase the speed of rotation of the body from a relatively low speed to a relatively high speed.
Abstract:
The disclosure relates to a tiltable mounting for a payload such as a camera (10) comprising, a platform (22) to receive the camera, a support (20), means to mount the platform for tilting movement on the support about a horizontal axis to either side of a neutral position in which the platform is disposed above the horizontal axis. The platform is counterbalanced throughout its range of movement to either side of said neutral position, by a spring driven counterbalance means comprising a cam (27, 28) and cam follower (31) arranged for relative movement with tilting of the platform with respect to the support. The came follower is located on a pivotally mounted lever (32) and linear springs (40) and a connection (38, 42, 43, 44) to convert rotation of the lever into linear input to the spring means to generate a spring force to resist tilting of the mounting. The shaping of the cam (28) is such that the spring force generated in response to tilting of the platform counterbalances the platform/payload throughout a prescribed range of movement in either side of said neutral position.