Daedong Co.

Daegu, South Korea

Daedong Co.

Daegu, South Korea
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Patent
Daedong Co. | Date: 2016-11-15

A draft control device of tractor includes a top link fixing bracket fixed at the rear side of the tractor, a top link swing bracket hinge-coupled to the top link fixing bracket through a connection pin, and carrying out rotational motion with respect to the axial center of the connection pin according to the change of the compressive force of a top link in response to the change of work machine traction resistance, a leaf spring provided between the top link fixing bracket and the top link swing bracket to supply restoring force for the rotational motion of the top link swing bracket with respect to the top link fixing bracket, and a sensitivity adjustment unit provided between the top link swing bracket and the leaf spring, and changing an acting point, where the top link swing bracket pushes the leaf spring, to adjust work machine traction load sensitivity.


A multi-purpose utility vehicle for construction and snow-removing work includes: a cargo box seated on a loading frame in the rear part of the vehicle; a continuously variable transmission combination mounted in a mounting space partitioned by a midship frame in the middle of a vehicle body; an engine assembly mounted in an engine room partitioned by a loading frame and base frames of the vehicle body at the back of the midship frame; a front wheel propeller shaft and a rear wheel propeller shaft which respectively transfer driving power outputted from the continuously variable transmission combination to a front axle combination of a front end of the vehicle body and a rear axle combination of a rear end of the vehicle body; and a PTO electromotive system extending from the front of the continuously variable transmission combination to the front of the vehicle body.


Patent
Daedong Co. | Date: 2017-01-11

An outer for automotive power transmission cables is used together with an inner movable between automotive components in a direction of an external force, in order to transmit power between the automotive components. The outer for automotive power transmission cables includes: a liner (110) surrounding the inner and allowing the inner to move relative to the liner (110); a plurality of steel wires (120) arranged around an outer circumferential surface of the liner (110) in close contact with each other without gaps; a connection wire (130) spirally arranged around outer circumferential surfaces of the steel wires (120) in such a manner that a gap is formed between neighboring turns of the connection wire (130) to allow the steel wires (120) to bend; and a resin layer (140) enclosing the connection wire (130).


Patent
Daedong Co. | Date: 2017-08-09

Disclosed is a bonnet mounting apparatus of an agricultural work vehicle, the apparatus enabling a bonnet that covers an engine compartment of a agricultural work vehicle to be opened upward. The bonnet mounting apparatus according to the present invention includes: a fastener on which a coupling protrusion is provided, and which is attached to the inside of one end portion of a bonnet; and a hinge on which a coupling recess, into which the coupling protrusion is inserted, is provided, and which is hingedly coupled to the upper end of a bonnet support at a vehicle body side so as to be rotatable upward and downward. According to the present invention, the bonnet is easily connected to the vehicle body by inserting the coupling protrusion of the bonnet into the coupling recess of the hinge at the vehicle body side.


Patent
Daedong Co. | Date: 2015-05-28

An agricultural working vehicle transmission combination includes: a clutch housing having a flywheel housing integrally formed thereon so as to cover an engine flywheel and a hollow transmission case directly connected to the rear side of the clutch housing. The clutch housing includes a PTO clutch unit for connecting/disconnecting transfer of engine power to a PTO shaft, a main gear-shifting unit for primary gear-shifting of engine power, and a bi-speed turn unit for front-wheel bi-speed turn execution. The transmission case includes a forward/backward gear-shifting unit connected to the rear side of the main gear-shifting unit via an intermediate clutch such that power can be transferred and a sub gear-shifting unit for secondary gear-shifting behind the forward/backward gear-shifting unit.


Patent
Daedong Co. | Date: 2017-08-16

A vibrating ripper, according to the present invention, has: a main body portion; a vibrating body which is coupled to the main body portion and a vibrating body support unit and vibrates; and a vibration generating unit which is provided on the vibrating body, wherein the vibrating body support unit has a rotating member rotatably provided on the vibrating body or the main body portion for supporting the vibrating body, has first and second connecting members of which both end portions are rotatably connected to the upper and lower sides of the rotating member, with respect to the rotating center of same, and to the main body portion or the vibrating body, respectively such that the vibrating body can be supported in accordance with the main body portion, has a ripper blade provided on the vibrating body, thereby, when the vibrating body vibrates in accordance with the main body portion, offsetting, by means of the rotating of the rotating member, the change in coupling positions of the first and second connecting members and the vibrating body due to the vibration.


Patent
Daedong Co. | Date: 2017-06-07

Disclosed are a draft control device of a tractor and a tractor including the same. A draft control device of a tractor, according to the present invention, automatically lifts a three-point hitch so as to decrease a traction load when the plowing depth of a work machine, which is connected to the three-point hitch at the rear side of a tractor, becomes excessively deep while working such that an overload is applied, and comprises a top link fixing bracket (40) fixed at the rear side of the tractor, a top link swing bracket (42) hinge-coupled to the top link fixing bracket (40) through a connection pin (41), and carrying out rotational motion with respect to the axial center of the connection pin (41) according to the change of the compressive force of a top link (30) in response to the change of work machine traction resistance, a leaf spring (44) provided between the top link fixing bracket (40) and the top link swing bracket (42) so as to supply restoring force for the rotational motion of the top link swing bracket (42) with respect to the top link fixing bracket (40), and a sensitivity adjustment unit (46) provided between the top link swing bracket (42) and the leaf spring (44), and changing an acting point, at which the top link swing bracket (42) pushes the leaf spring (44), so as to adjust work machine traction load sensitivity.


A rear axle case of an agricultural work vehicle and a rear axle assembly including the same. The rear axle case of an agricultural work vehicle includes: a rear axle cover, having a hollow pipe shape, for surrounding a rear axle; a reduction gear cover unitarily provided at the side of the rear axle cover; a differential axle cover integrally formed at the front end of the reduction gear cover so as to cover a differential axle extending to the outside of a rear differential case; and a brake unit cover unitarily provided at an opening of the differential axle cover in a form in which one side opening of the differential axle cover is covered, such that a space in which a multi-disk brake unit can be provided is formed between the brake unit cover and the rear differential case.


Patent
Daedong Co. | Date: 2016-07-07

Provided is an apparatus for manually operating a transmission state of a car, the apparatus including a base member fixed on a frame of the car; and a manipulation lever having a side rotatably coupled to the base member via a hinge shaft and an opposite side rotating about the hinge shaft, and comprising a through hole, through which an end of an operating cable for manually operating the transmission state passes, and a fixing recess formed adjacent to the through hole for hooking and fixing the end of the operating cable, wherein the manipulation lever and the end of the operating cable are rotated together so as to shift the transmission state via the manual operation, connecting and separating of the operating cable and the manipulation lever is freely performed via the through hole, and the operating cable is fixed to the manipulation lever via the fixing recess.


Patent
Daedong Co. | Date: 2016-12-21

Provided is a vibration damper for a high load, including: a vibration body support portion having first shaft support portions; rotation shafts that are rotatably installed at the first shaft support portions, have eccentric portions eccentric with respect to rotation centers of the rotation shafts and are spaced a predetermined gap from each other; a support portion having second shaft support portions on which the eccentric portions are rotatably supported; an elastic member that is installed between the vibration body support portion and the support portion or between the vibration body support portion and the second shaft support portions and that elastically supports the support portion with respect to the vibration body support portion in an upward direction; and a rotation synchronization unit that is installed at the rotation shafts so as to synchronize rotation directions of the rotation shafts according to vibration. The vibration damper for a high load can be applied to various construction machines, and excavators and can prevent vibration generated from various attachments from being transferred to a boom or car body of an excavator or a construction machine.

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