DONG-IL RUBBER BELT CO., LTD.
|DONG-IL RUBBER BELT CO., LTD. Patent applications|
|Patent application number||Title||Published|
|20120286566||Rubber Crawler Having Metal Core for Improvement of Wheel Separation and Durability - The present invention relates to a rubber crawler having a metal core for improvement of wheel separation and durability, and comprises metal core extensions formed at predetermined intervals along the lengthwise direction of the metal core of the rubber crawler, thereby avoiding the phenomenon of wheel separation which occurs during crawler operation, and minimizing lug breakage due to foreign objects, bend fatigue of a metal core, metal core exposure and breakage of a tread portion, so that the durability performance is enhanced. According to an embodiment of the present invention, the rubber crawler having a metal core for improvement of wheel separation and durability comprises a lug formed to protrude on an external side surface and grounded on the ground; a steel cord disposed internally for enduring compressive load and the driving load of a tracked vehicle; a metal core which is embedded within the steel cord, and transfers the driving force of the engine; and metal core extensions which are embedded along both lengths on the basis of the center portion of the metal core, and prevents wheel separation of the metal core, wherein the metal core extensions are assembled on the mutually opposite surfaces of which are inclined at a predetermined angle, and the overlapped portion (center portion) surfaces of the metal core extensions are formed to have an angle of inclination to each other, thereby supporting the X axis, Y axis, and Z axis displacements.||11-15-2012|
|20120080937||Apparatus for Controlling Tension of Track - The present invention relates to an apparatus for controlling tension of a track, and more particularly to an apparatus for preventing a track wheel from separating due to an uneven road surface and obstacles on the road surface by minimizing space between a moving idler and roller when controlling the tension of the track, and for supporting the weight of a machine more safely by maximizing the space between a rear roller and a front roller. To this end, the present invention is characterized by: a track frame structure in which the idler and the front roller move together when controlling the tension of the track; and a damping member for absorbing external shock, wherein the idler is fixed in an idler frame, the front roller is fixed in a roller frame, and the buffer member is positioned between the idler frame and the roller frame.||04-05-2012|
|20110036649||Multi-Link Bridge In Undercarriage System - The present invention employs a multi-link to an excavator for the first, and restricts a relative movement of the center frame (||02-17-2011|
Patent applications by DONG-IL RUBBER BELT CO., LTD.