Abstract: The present disclosure relates to managing a document to be cleaned, includes processing a request, in response to the request to store document data of a first document in a database, based on at least one of whether the first document is duplicate or whether substantive contents of the first document are a same in a relationship with a second document pre-stored in the database, whether the first document is duplicate may be determined by comparing a unique identification value and version information of the first document with a unique identification value and version information of the second document, and whether substantive contents of the first document are the same may be determined by comparing hash data of the first document with hash data of the second document.

Abstract: Disclosed are a steering column for a vehicle and a steering apparatus for a vehicle having the same. According to the present invention, since a coupling position of a tilt bolt is positioned on the central axis of a steering shaft, bending is not caused and an adjustment lever does not hit a driver on the knee at the time of vehicle collision, and the nut opposite to the adjustment lever can be prevented from being loosened at the time of manipulating the adjustment lever.

Abstract: Disclosed are a steering column for a vehicle and a steering apparatus for a vehicle having the same. According to the present invention, since a coupling position of a tilt bolt is positioned on the central axis of a steering shaft, bending is not caused and an adjustment lever does not hit a driver on the knee at the time of vehicle collision, and the nut opposite to the adjustment lever can be prevented from being loosened at the time of manipulating the adjustment lever.

Abstract: A tilt-and-telescope steering apparatus includes a plate bracket, an outer tube, a distance bracket, an outer block, and a fastening arrangement. The plate bracket surrounds an outer surface of an outer tube and has tilt adjustment holes formed on both sides of the plate bracket. The outer tube surrounds an inner tube and has telescopic adjustment hole formed in at least one side thereof. The distance bracket surrounds the outer surface of the outer tube and has fastening holes formed through both sides of the distance bracket. The outer block is positioned between the plate bracket and the distance bracket, and fastens the distance bracket according to the operation of a control lever. A fastener couples the plate bracket, the outer block, and the distance bracket to each other.

Abstract: Disclosed is a tilt-and-telescopic steering system having a guide bush, the system including an interior tube and an exterior tube which surround a steering shaft; a distance member integrally fixed to an outer peripheral surface of the exterior tube; tilt brackets assembled with an outer peripheral surface of the distance member so as to limit a movement angle in tilt operation; and a lever and a bolt which hold and release the tilt-and-telescopic system, wherein a through hole is formed in the exterior tube and the distance member which are disposed between an outer peripheral surface of the interior tube and an inner peripheral surface of the tilt brackets, wherein a guide bush is inserted in the through hole.

Abstract: Disclosed is a collision energy absorbable steering column of a vehicle, which includes a steering shaft having an upper end connected to a steering wheel and a lower end connected to a rack-pinion mechanism; an interior tube for surrounding the steering shaft; an exterior tube for surrounding the interior tube; a wire block assembly fixed to a mounting bracket so as to absorb collision energy by wire deformation when a vehicle crashes against an object; the mounting bracket for supporting the exterior tube, the mounting bracket being fixed to a chassis of the vehicle, the mounting bracket having at least one side rail and at least one wire-assembling hole through which a wire is inserted so as to assemble the mounting bracket with the wire block assembly; and a plate bracket coupled to the mounting bracket by forcibly fitting the plate bracket together with the wire block assembly in the mounting bracket.

Abstract: Disclosed is an impact absorption steering apparatus, which includes: a mounting bracket for supporting an outer tube so as to fix the outer tube in a chassis of a vehicle; and a plate bracket which has one opened side and another side assembled with the mounting bracket, the plate bracket enclosing the outer tube, wherein the plate bracket is fixedly assembled with the mounting bracket, at least one protuberance is formed at an inner side of a guide part of the mounting bracket, and at least one groove is formed at each end of both sides of the plate bracket in such a manner that the groove corresponds to the protuberance.

Abstract: Disclosed is a steering column of a vehicle having a collision energy absorbing apparatus. The steering column includes: a hollow tube having a steering shaft disposed in the hollow tube; a plate bracket surrounding an outer peripheral surface of the tube and having guide grooves formed on a top part of the plate bracket; a reinforcing member for reinforcing and supporting the plate bracket, the reinforcing member being coupled to the tube and being provided within the plate bracket; and a mounting bracket having impact-absorbing guide members inserted in the guide grooves and fixing holes formed on both sides of the mounting bracket for fixing the mounting bracket to a chassis.

Abstract: A telescopic device includes an inner tube; an outer tube having an opening formed on an end so that the opening partially extends in a longitudinal direction; upper mounting brackets; a lever; and a protruding distance member fixed to an outer peripheral surface of the outer tube and provided with a protrusion inserted into the opening and fasteners to be mounted on the upper mounting brackets. The protrusion is adapted to compress the inner tube when the lever is fastened so that the inner and outer tubes are fixed to each other. By replacing the conventional telescopic bush with the distance member, the telescopic force is reduced when the lever is unfastened. In addition, when the lever is fastened, the inner peripheral surface and the protruding surface of the distance member strongly compress both the outer and inner tubes. This increases the rigidity of the steering device during driving.

Abstract: Disclosed is an impact absorption steering apparatus, which includes: a mounting bracket for supporting an outer tube so as to fix the outer tube in a chassis of a vehicle; and a plate bracket which has one opened side and another side assembled with the mounting bracket, the plate bracket enclosing the outer tube, wherein the plate bracket is fixedly assembled with the mounting bracket, at least one protuberance is formed at an inner side of a guide part of the mounting bracket, and at least one groove is formed at each end of both sides of the plate bracket in such a manner that the groove corresponds to the protuberance.

Abstract: Disclosed is a tilt-and-telescope steering apparatus including a plate bracket surrounding an outer surface of an outer tube and having tilt adjustment holes formed on both sides thereof; an outer tube surrounding an inner tube and having telescopic adjustment holes formed on both sides thereof; a distance bracket surrounding the outer surface of the outer tube and having fastening holes formed through both sides thereof; an outer block positioned between the plate bracket and the distance bracket and fastening the distance bracket according to the operation of a control lever; and a fastening means coupling the plate bracket, the outer block and the distance bracket to each other.

Abstract: Disclosed is a collision energy absorbable steering column of a vehicle, which includes a steering shaft having an upper end connected to a steering wheel and a lower end connected to a rack-pinion mechanism; an interior tube for surrounding the steering shaft; an exterior tube for surrounding the interior tube; a wire block assembly fixed to a mounting bracket so as to absorb collision energy by wire deformation when a vehicle crashes against an object; the mounting bracket for supporting the exterior tube, the mounting bracket being fixed to a chassis of the vehicle, the mounting bracket having at least one side rail and at least one wire-assembling hole through which a wire is inserted so as to assemble the mounting bracket with the wire block assembly; and a plate bracket coupled to the mounting bracket by forcibly fitting the plate bracket together with the wire block assembly in the mounting bracket.

Abstract: A tilting and telescopic steering apparatus is provided. The apparatus includes a tube surrounding a steering shaft, a distance member coupled to a circumferential face of the tube, a plate bracket surrounding a circumferential face of the distance member, an adjusting bolt passing through the distance member and the plate bracket, and a locking member rotatably provided on one end of the adjusting bolt. In the apparatus, there is provided the rotatable locking member instead of a gear engagement structure, so as to maintain the locked state of the tilting and telescoping operations, reducing the number of parts required, and therefore the manufacturing period and costs of manufacturing, assembling and installing the steering apparatus.

Abstract: Disclosed is a tilt-and-telescopic steering system having a guide bush, the system including an interior tube and an exterior tube which surround a steering shaft; a distance member integrally fixed in an outer peripheral surface of the exterior tube; tilt brackets assembled with an outer peripheral surface of the distance member so as to limit a movement angle in tilt operation; and a lever and a lever bolt which hold and release the tilt-and-telescopic system, wherein a through hole is formed in the exterior tube and the distance member, the through hole being disposed between an outer peripheral of the interior tube and an inner peripheral surface of the tilt bracket, so that a guide bush is inserted in the through hole.