The invention relates to a fastening device for detachably fastening a supplementary apparatus to the main apparatus by means of a part belonging to it, such as a rod, pin, projection, shaft, or similar. According to the invention, the fastening device comprises the longitudinal frame (2) and slide (3), which are attached and fitted to each other so that they can be moved in relation to each other between two positions (A, B) and in the connection of which there are provided the first and, respectively, the second closing part (4, 5), by means of which the rod of the supplementary apparatus etc. can be attached to the fastening device and by means of it further to the apparatus etc., and the locking means (6) for immovably locking the frame (2) and slide (3) to each other and, respectively, for releasing them from each other. The invention also relates to a work vehicle, in which the fastening device is applied.
A01B 59/06 - Devices specially adapted for connection between animals or tractors and agricultural machines or implements for machines mounted on tractors
B62D 49/06 - Tractors adapted for multi-purpose use
F16B 2/12 - Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using sliding jaws
2.
ARRANGEMENT FOR ADJUSTING THE POSITION OF CUTTING MEANS IN A CUTTING DEVICE
The invention relates to an arrangement for adjusting the position of the cutting means (7) of a cutting device (1 ) meant for cutting vegetation. The cutting means (7) comprise a cutting unit (9) and a lifting and lowering device (4; 4a). According to the invention, the arrangement comprises measuring elements (10; 10a, 10b) and an adjusting unit (5a), in which arrangement, there is defined an advantageous motional range (L) for the cutting unit (9), the measuring elements (10; 10a, 10b) are arranged to detect the position of the cutting unit (9) in relation to an advantageous motional range (L) and to transmit the position data to an adjusting unit (5a); the adjusting unit (5a) is arranged to receive the position data and to control the lifting and lowering device (4; 4a) on the basis thereof, and the lifting and lowering device (4; 4a) is arranged to adjust the position of the cutting unit (9) on the basis of the instructions received in the position adjusting unit (5a) in order to maintain the position of the cutting unit (9) within an advantageous motional range (L).
The invention relates to a recovered waste processing arrangement that is fitted in an independently movable power tool (1 ) for maintaining the environment. The tools (2) of the power tool comprise at least one processing unit (20; 20a, 20b, 20c) provided with a processing device (202). The processing unit is arranged in connection with the frame (4) of the power tool. The recovered waste processing arrangement includes: a chamber (12) for receiving recovered waste from the processing device (202), such as a cutter (202) or a brush, said chamber (12) being arranged in connection with the processing unit (20); a discharge aperture (13) arranged in connection with the chamber (12); a transport duct (17), the first end is of which is connected to a discharge aperture (13); a collecting tank (18) that is arranged in connection with the power tool frame (4), and to which tank the second end of the transport duct (17) is connected; and a first blower (10) that is arranged in between the processing unit chamber (12) and the collecting tank (18), and by means of which air and recovered waste carried along with the air are sucked through the transport duct (17) from the processing unit and blown into the collecting tank (18). According to the invention, the processing arrangement also comprises a second blower (101) that is connected to the processing unit chamber (12) by a supply air duct (131 ), by means of which second blower, air is blown into the chamber (12) of the processing unit (20) for boosting the transfer of the recovered waste. The invention also relates to a processing unit (20) that is meant for an independently movable power tool (1) for maintaining the environment.
A01D 43/077 - Mowers combined with apparatus performing additional operations while mowing with means for collecting, gathering or loading mown material with auxiliary means, e.g. fans, for transporting the mown crop
The invention relates to an electromechanic parking brake arrangement for an electrically driven vehicle that is provided with a DC power supply (7), such as a battery. The parking brake arrangement (1) comprises an electromagnetic actuator (2) and a drum brake (3) that is fitted in connection with the vehicle wheel. According to the invention, the electromagnetic actuator (2) in the electromechanic parking brake arrangement is a linear power unit (20), the motion bar (21) whereof has a first position (A) and a second position (B), between which positions the motion bar (21) can be moved by sending an electric control signal to the power unit; said motion bar (21) of the power unit is connected to the expander elements (330) of the drum brake (3), so that when the power unit bar is in the first position (A), the two brake shoes (31, 32) of the drum brake (3) are in the rest position, where the drum brake is not in operation, and in the second position (B), the two brake shoes (31, 32) of the drum brake are in the working position, placed against the inner surface of the brake drum, in which case the drum brake is in operation. The electromechanic brake arrangement also comprises a control unit (4) of the power unit, said control unit being provided with a first circuit including a first relay and a first reserve power supply that is connected, through the relay switch, to the power unit, when the voltage of the DC power supply over the relay control winding is drastically dropped, in which case the motion bar (21) of the power unit (20) is shifted from the first position (A) to the second position (B), and the brake shoes (31, 32) are shifted, by means of the motion bar, by the expander elements (330), to the working position, and the parking brake begins to function.
F16D 65/14 - Actuating mechanisms for brakesMeans for initiating operation at a predetermined position
F16D 51/48 - Self-tightening brakes with pivoted brake-shoes with two linked or directly-interacting brake-shoes
B60T 7/12 - Brake-action initiating means for automatic initiationBrake-action initiating means for initiation not subject to will of driver or passenger
5.
OPERATION AND CONTROL MEANS AND CONTROL ARRANGEMENT FOR INDEPENDENTLY MOVABLE DEVICE WITH ELECTRIC DRIVE
The invention relates to an independently movable device with electric drive, comprising a frame; at least three bearing wheels, at least one wheel of which is turnably fastened to the frame; a drive motor unit provided in connection with at least one wheel, said unit comprising an electric motor; a battery unit and an electric control unit, by intermediation of which the user controls and adjusts the operation of the device, a seat (7) for the device user, said seat being arranged on top of the frame, as well as operation and control devices (9), by means of which the user controls and adjusts the operation of the device unit by intermediation of the control unit. According to the invention, the operation and control devices (9) are arranged in a control bracket (8) fitted in the vicinity of the seat (7). In a preferred embodiment of the invention, the seat (7) and the connected control bracket (8) are attached with bearings to the top part of the frame turnably in the horizontal direction. The invention also relates to a control arrangement for an independently movable device (1) with electric drive.
B60K 7/00 - Disposition of motor in, or adjacent to, traction wheel
B62D 49/06 - Tractors adapted for multi-purpose use
A01D 69/02 - Driving mechanisms or parts thereof for harvesters or mowers electric
G05G 9/047 - Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
B60K 35/00 - Instruments specially adapted for vehiclesArrangement of instruments in or on vehicles
The invention relates to an electrically driven independently movable device (1) that comprises a frame (4); at least three bearing wheels (3; 31, 32, 33), of which at least one wheel (33) is turnably fastened to the frame; a drive motor unit (5) arranged in connection with at least one wheel (3; 31, 31, 32), including an electric motor, the outlet axis (20) of said drive motor unit (5) being connected to the hub of a wheel (3); a battery unit (6) and an electric control unit (11), by intermediation of which the user controls and adjusts the operation of the device. According to the invention, the device frame (4) is realized as a self-supporting structure made of thin plate-like material, which frame (4) comprises a basin-like basic frame (41) open at the top, inside which basic frame there is arranged a space for batteries (6) and for the control unit (11), an at least partly detachable top part (44) that is arranged to cover the basin-like basic frame, and an end part connected to the basic frame (41), particularly a front part (42) that is formed as a fork comprising two branches (42a, 42b); and in said device a pair of wheels (3; 31, 32) together with their drive motor units (5; 51, 52) is fastened to the fork of the end part of the frame (4), at least of the front part (42), and that both drive motor units (5; 51, 52) are connected to the frame (4) by means of an installation tube (17; 171, 172), so that the drive motor unit is fitted and locked in place in the installation tube. The electric motor of the drive motor unit (5) is realized as a servo motor (5a), preferably an AC servo motor, the operation of which is controlled by the control unit.
The invention relates to a grass cutting unit (1) comprising a frame (2) and, provided in connection with said frame: a cutter (3) for cutting grass and support elements (4; 41, 42) for supporting the cutting unit (1) against the ground, particularly when cutting grass. Said cutting unit (1) is provided with a cutting height setting device. In a most preferred embodiment of the invention, the cutting height setting device comprises two lead screws (7; 71, 72; 73, 74) that are connected to the ends of both support reels (4; 41, 42), and the corresponding nut elements are connected to the frame; by rotating said lead screws by driving motors, advantageously electric motors (6; 61, 62), each support reel can be moved essentially in the vertical direction, and simultaneously the cutting height can be adjusted within the desired limits.
The invention relates to an arrangement for handling clippings, fitted in a device (1) for cutting lawn, said device including at least one cutting unit (20; 20a, 20b, 20c) provided with a cutter (202), said cutting unit being arranged at the end (42) of the frame (4), and management and control means (9) as well as a control unit (11) for controlling the device. The arrangement for handling clippings comprises: a chamber (12) for receiving clippings from the cutter (202), said chamber (12) being arranged in connection with the cutting unit (20), a discharge aperture (13) provided in connection with the chamber (12), a transport duct (17), the first end of which is connected to the discharge aperture (13), a blower unit (10) that is fitted in the transport duct (17), and a collecting tank (18) that is fitted in connection with the device frame (4), and (the front end (18a) of which tank) is provided with an inlet aperture (181), to which the other end of the transport duct is connected, which collecting tank can be opened for removing clippings from the collecting tank. According to the invention, the end part (42) of the frame, to which the cutting unit (20) is attached, is formed as two branches (42a, 42b). The space left in between said branches (42a, 42b) is arranged as a cavity (15), in which the collecting tank (18) is fitted so that its front part (18a) is located essentially in the tip portion of the frame end (42) and simultaneously at the front portion of the cavity, and respectively its rear part (18b) is located in the rear portion of the cavity, and the bottom part (180d) of the collecting tank is essentially on the level of the frame bottom part (45). The discharge aperture (182) is arranged in the lower part (18b) of the collecting tank, advantageously in the bottom part (180d), said discharge aperture (182) being provided with a lid (19) that can be opened for removing clippings from the tank. An actuator (191) is fitted in connection with the lid (19) of the discharge aperture (182) of the collecting tank (18) for opening and closing said lid. The actuator (191) and the emptying of the collecting tank are controlled by intermediation of a control unit (11) provided in the device, according to instructions given from management and control means (9).
A01D 43/063 - Mowers combined with apparatus performing additional operations while mowing with means for collecting, gathering or loading mown material in or into a container carried by the mowerContainers therefor
patents