WO2013137576A1 - 스티어링 기어의 랙 바 지지 장치 - Google Patents
스티어링 기어의 랙 바 지지 장치 Download PDFInfo
- Publication number
- WO2013137576A1 WO2013137576A1 PCT/KR2013/001696 KR2013001696W WO2013137576A1 WO 2013137576 A1 WO2013137576 A1 WO 2013137576A1 KR 2013001696 W KR2013001696 W KR 2013001696W WO 2013137576 A1 WO2013137576 A1 WO 2013137576A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- support plate
- support
- rack
- biasing
- adjustment
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
- B62D3/12—Steering gears mechanical of rack-and-pinion type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
- F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
- F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
- B62D3/12—Steering gears mechanical of rack-and-pinion type
- B62D3/123—Steering gears mechanical of rack-and-pinion type characterised by pressure yokes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
- B62D3/12—Steering gears mechanical of rack-and-pinion type
- B62D3/126—Steering gears mechanical of rack-and-pinion type characterised by the rack
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/20—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application
- B62D5/22—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application for rack-and-pinion type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/26—Racks
- F16H55/28—Special devices for taking up backlash
- F16H55/283—Special devices for taking up backlash using pressure yokes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/26—Racks
- F16H55/28—Special devices for taking up backlash
- F16H2055/281—Cylindrical or half-cylindrical bushings around the rack, e.g. using special wedges to reduce play
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18056—Rotary to or from reciprocating or oscillating
- Y10T74/18088—Rack and pinion type
- Y10T74/18096—Shifting rack
Definitions
- the present invention relates to a rack bar support device for supporting a rack bar of a steering gear constituting a steering device of a vehicle.
- the rack support structure has a rack bearing in contact with the rack bar, and a coil spring supported by an adjustment plug mounted to the steering gear housing has a structure in which the rack bearing is elastically supported.
- the conventional rack bar support device has a problem that the play between the rack bearing and the adjustment plug increases due to wear of the rack and pinion due to long time operation, and the enlarged play may cause rattles, vibrations, and the like.
- the problem to be solved by the present invention is to provide a rack bar support device that can effectively absorb the play when the play occurs due to the wear caused by the long-term use of the steering gear of the steering device of the vehicle.
- a rack bar support device is a device for supporting a rack bar of a steering device of a vehicle toward a pinion shaft, and is disposed on an opposite side of the pinion to contact the rack bar.
- a rack bearing, and a biasing assembly providing a force for pushing the rack bearing toward the rack along a biasing axis such that the rack bearing pushes the rack bar to engage the rack bar with the pinion shaft.
- the biasing assembly includes an adjustment plug, an adjustment assembly, and a support plate assembly. The adjustment plug may be fixed at a plurality of positions along the biasing axis.
- An adjustment assembly includes: an adjustment member formed to be movable relative to the rack bearing along the biasing axis with respect to the rack bearing, and the adjustment member to the adjustment plug. And a first biasing member each fastened to the adjustment plug and the adjustment member to provide a force to push against the rack bearing.
- the support plate assembly may include a first support plate supported by the rack bearing, a second support plate disposed to face the first support plate while being supported by the adjustment member, and the first and second support plates.
- a second biasing member disposed between and providing a force for pushing the first support plate along the biasing axis relative to the second support plate, and the second plate is in an opposite direction of the rack bearing.
- a fastening structure for fastening the first and second support plates to each other so as to restrict movement thereof.
- the second biasing member may be a disk spring or a coil spring disposed in a compressed state between the first and second support plates.
- the rack bar support device further comprises an o-ring disposed between the disk spring and the first support plate.
- the fastening structure may include a bolt and a nut fastened to each other, and the first and second support plates may be disposed between the head of the bolt and the nut.
- the second support plate may be installed in a state in which it is supported by the adjustment member so as to be spaced apart from that for limiting the movement of the second support plate of the bolt and the nut in the initial mounting state.
- the nut and the first support plate may be integrally formed.
- the second support plate may be installed in a state in which it is supported by the adjustment member so as to be spaced apart from that for limiting the movement of the second support plate of the bolt and the nut in the initial mounting state.
- the second support plate may be integrally formed with the bolt head.
- the second support plate may be installed in a state in which the nut is supported by the adjustment member so as to be spaced apart from the first support plate in an initial mounting state.
- the first biasing member may be a torsional spring
- the adjustment plug may have a first cam structure
- the adjustment member may be biased by the force of the torsional spring. It may have a second cam structure that is fastened to the first cam structure to move toward the rack bearing along the axial direction.
- the second support plate In the initial mounting state, the second support plate has a gap therebetween along the biasing axis direction between the second support plate and the first support plate and between the second support plate and the support portion of the fastening structure.
- the first support plate and the fastening structure may be installed in contact with the biasing axis.
- a rack bar support device is a device for supporting a rack bar of a steering device of a vehicle toward a pinion shaft, and is disposed on an opposite side of the pinion to contact the rack bar.
- a rack bearing, and a biasing assembly providing a force for pushing the rack bearing toward the rack along a biasing axis such that the rack bearing pushes the rack bar to engage the rack bar with the pinion shaft.
- the biasing assembly includes an adjustment plug, an adjustment assembly, and a support plate assembly. The adjustment plug may be fixed at a plurality of positions along the biasing axis.
- An adjustment assembly includes: an adjustment member formed to be movable relative to the rack bearing along the biasing axis with respect to the rack bearing, and the adjustment member to the adjustment plug. And a first biasing member each fastened to the adjustment plug and the adjustment member to provide a force to push against the rack bearing.
- the support plate assembly may include a first support plate supported by the rack bearing, a second support plate disposed to face the first support plate while being supported by the adjustment member, and the first and second support plates.
- a second biasing member disposed between and providing a force for pushing the first support plate along the biasing axis relative to the second support plate, and a first support member for supporting the first support plate.
- a second support member fastened to the first support member such that the first and second support plates are positioned therebetween and configured to restrict movement of the second plate in the opposite direction of the rack bearing. do.
- the second support plate may be installed in a state of being supported by the adjustment member so as to be spaced apart from the second support member so as not to be supported in the biasing axial direction by the second support member in an initial mounting state.
- the first support member and the first support plate may be integrally formed.
- the second support plate may be installed in a state of being supported by the adjustment member so as to be spaced apart from the second support member in an initial mounting state.
- the second support plate may be integrally formed with the second support member.
- the second support plate may be installed in a state in which the first support member is supported by the adjustment member so as to be spaced apart from the first support plate in an initial mounting state.
- the second support plate In the initial mounting state, the second support plate has a gap therebetween along the biasing axis direction between the second support plate and the first support plate and between the second support plate and the second support member.
- the first support plate and the second support member may be installed in a state not in contact with any of them.
- FIG. 1 is a schematic perspective view of a steering gear of a vehicle to which a rack bar supporting apparatus according to an exemplary embodiment of the present invention may be applied.
- FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1.
- FIG 3 is an exploded perspective view of the rack bar support apparatus according to the embodiment of the present invention.
- Figure 4 is a cross-sectional view showing a rack bar support apparatus according to another embodiment of the present invention.
- Figure 5 is a cross-sectional view showing a rack bar support apparatus according to another embodiment of the present invention.
- Figure 6 is a cross-sectional view showing a rack magnetic support device according to another embodiment of the present invention.
- FIG. 1 is a schematic perspective view of a steering gear of a vehicle to which a rack bar support apparatus according to an exemplary embodiment of the present invention may be applied
- FIG. 2 is a cross-sectional view taken along line II-II of FIG. 1, and
- FIG. 3. Is an exploded perspective view of a rack bar support apparatus according to an embodiment of the present invention.
- a rack bar support device pinion the rack bar 21 of the steering gear (steering gear) 10 of the steering device of the vehicle (pinion shaft) pinion (pinion) support shaft (23).
- the rack bar support device has a function of compensating for the disappearance of the generated play even if the play occurs by the wear of the rack gear and pinion gear by the long time use of the steering gear.
- the pinion shaft 23 is engaged with the rack bar 21, and the pinion shaft 23 and the rack bar 21 are at least partially disposed in the housing 30.
- the pinion shaft 23 is rotatably installed, and the rack bar 21 is installed to move left and right in response to the rotation of the pinion shaft 23.
- the rack bearing 100 contacts the rack bar 21 and is disposed on the opposite side of the pinion shaft 23.
- the rack bearing 100 has a structure in which one side is recessed to at least partially accommodate the rack bar 21, and the rack bar 21 is inserted into the recess structure.
- a lining 101 may be provided at a portion of the rack bar 21 in contact with the rack bar 21 so as to move smoothly in a state in which the rack bar 21 is in contact with the rack bearing 100.
- the groove 104 is formed on the outer circumferential surface of the rack bearing 100, and an O-ring 106 for damping may be inserted therein.
- a biasing assembly 200 biases the rack bearing 100 so that the rack bearing 100 pushes the rack bar 21 so that the rack bar 21 engages with the pinion shaft 23. ) Provides a pushing force toward the rack bar 21. That is, as the biasing assembly 200 pushes the rack bearing 100 and accordingly the rack bar 21 is pushed by the rack bearing 100, the rack bar 21 and the pinion shaft 23 have a play between them. It is firmly engaged so that it is absorbed.
- the biasing assembly 200 includes an adjustment plug 210, an adjustment assembly 230, and a support plate assembly ( 250).
- the adjustment plug 210 is formed to be fixed at a plurality of positions along the biasing axis.
- a thread 211 is formed on an outer circumferential surface of the adjustment plug 210, and may be screwed into a through hole having a thread formed in the housing 30 through the thread 211. Accordingly, the adjustment plug 210 may be variable in the biasing axis direction according to the degree of rotation and may be fixed at a desired position.
- the adjustment assembly 230 may include an adjustment member 231 and a first biasing member 235.
- the adjustment member 231 is formed to be relatively moved along the biasing axis with respect to the adjustment plug 210 toward the rack bearing 100.
- the adjustment member 231 may be formed of a member in which a through-hole in the biasing axial direction is formed at a central portion thereof.
- the first biasing member 235 adjusts the adjustment plug 210 and the adjust to provide a force to push the adjustment member 231 against the adjustment plug 210 toward the rack bearing 100. It is fastened to thement member 231, respectively.
- the first biasing member 235 may be formed of a torsional spring.
- the adjustment plug 210 may have a space for accommodating the torsion spring 235, one end of the torsion spring 235 is fixed to the adjustment plug 210 and the other end Is fixed to the assertion member 231.
- the adjustment plug 210 and the adjustment member 231 have cam structures 212 and 232, respectively, and the adjustment member 231 is applied by a force applied by the torsion spring 235. In this case, the adjustment member 231 moves in a direction away from the adjustment plug 210 by the cam structures 212 and 232.
- the support plate assembly 250 may include first and second support plates 251 and 252, a second biasing member 253, and a fastening structure.
- the fastening structure may include first and second support members 254 and 256 fastened to each other.
- the first support plate 251 is installed to be supported by the rack bearing 100, and the second support plate 252 is supported by the adjustment member 231. It is disposed to face the first support plate 251.
- the second support plate 252 is disposed to be movable between the adjustment member 231 and the first support plate 251 in a state of being supported by the adjustment member 231. That is, in FIG. 2, the right surface of the second support plate 252 is disposed in a state of being supported by the adjustment member 231.
- the second biasing member 253 is disposed between the first and second support plates 251 and 252 to provide a force for pushing the first support plate 251 along the biasing axis with respect to the second support plate 252. do. That is, the rack bearing 100 is pushed toward the rack bar 21 by the first support plate 251 elastically supported by the second biasing member 253 supported by the second support plate 252. It becomes.
- the second biasing member 253 may be implemented with a disk spring. Meanwhile, in another embodiment of the present invention, the second biasing member may be implemented as a coil spring.
- a gap d1 is formed between the first supporting plate 251 and the second supporting plate 252. Accordingly, unless a very large shock is transmitted through the rack bar 21, the second support plate 252 may not directly hit the first support plate 251, thereby preventing noise and impact.
- the above-described fastening structure fastens the first and second support plates 251 and 252 to each other so as to restrict the second support plate 252 from moving in the opposite direction of the rack bearing 100.
- the first and second support members 254 and 256 that form the fastening structure may include the first and second support plates so as to restrict the movement of the second support plate 252 in the opposite direction of the rack bearing 100. (251, 252) is fastened to each other.
- the first and second support members 254 and 256 are fastened to each other, and the first and second support plates 251 and 252 are positioned between the first and second support members 254 and 256.
- the first support member 254 may be formed of a nut
- the second support member 256 may be formed of a bolt.
- the bolt 256 may be fastened to the nut 254, and the first and second support plates 251 and 252 may have the nut 254 and the head 258 of the bolt 256. ) May be disposed between.
- the nut 254 supports the first support plate 251 on the rack bearing 100 side, and the bolt head 256 is positioned beyond the second support plate 252.
- through holes are formed in the centers of the first and second support plates 251 and 252, respectively, and bolts 256 are fastened to the nuts 254 through the two through holes.
- the second support plate 252 Since the position of the head 258 of the bolt 256 is fixed relative to the rack bearing 100 and the first support plate 251, the second support plate 252 is pushed by the second biasing member 253. Even if the second support plate 252 is no longer pushed beyond the position where it is in contact with the bolt head 258. Accordingly, the bolt 256 may limit the movement of the second support plate 252 in the opposite direction of the rack bearing 100.
- the second support plate 252 is supported by the adjustment member 231 and the other side is supported by the disk spring 253, where the initial mounting state (i.e. rack and In the initial state before the wear of the pinion occurs, the second support plate 252 is connected to the rack bearing 100 and the second support member (i.e., the bolts which perform the movement limiting function) 256 (ie the support of the fastening structure). It may be installed to be balanced and placed in a state of not contacting any of them. That is, as shown inside the enlarged circle of FIG. 2, there is a gap d1 between the second support plate 252 and the first support plate 251 and also the second support plate 252 and the bolt head. An interval d2 is also present between 258. This arrangement may be set by adjusting the elastic force of the disk spring 253, the elastic force of the torsion spring 235, and the position of the adjustment plug 210 including the cam structure.
- the initial mounting state i.e. rack and In the initial state before the wear of the pinion occurs
- the second support plate 252 is used before the second support plate 252 is installed in a state of being supported by the adjustment member 231, that is, when the support plate assembly 250 is in a single unit state.
- the first support plate 251 is not a d1 in FIG. 2 but a value corresponding to the sum of d1 and d2. That is, in this case, the second support plate 252 is as far as possible from the first support plate 251 by the disk spring 253, that is, the second support plate 252 is in contact with the bolt head 258.
- the second support plate 252 is spaced apart from the first support plate 251 by the sum of d1 and d2 before the second support plate 252 is installed in the state of being supported by the adjustment member 231. It is positioned at a point spaced by the member member 251 and spaced apart from the first support plate 251 by d1. At this time, the second support plate 252 is spaced apart from the bolt head 258 by d2.
- the assembly assembly 230 is assembled with the adjustment plug 210 and the adjustment member 231 twisted by the torsion spring 235, where the adjustment plug 210
- the pin 261 (see FIG. 3) may be inserted through the hole formed in the hole and the hole 234 formed in the adjustment member 231 to be assembled in a state in which the twisted state is maintained. That is, the assembly assembly 230 is assembled with a minimum height to form one assembly, and the assembly assembly 230 is fastened to the housing 30 by screwing the adjustment plug 210.
- the pin member 261 is pulled out and the adjustment member is formed by the torsion spring 235. Allow rotation of 231 to occur. Accordingly, the rotation by the torsion spring 235 does not occur during the assembly process but occurs after the final assembly.
- the operation of the rack bar support device having this structure is as follows. First, when the steering device is used for a long time in the first installed state, and the play occurs due to the wear of the rack and pinion, the pushing force of the second biasing member 253 supported by the second support plate 252 may be used. 1 The support plate 251 and the rack bearing 100 is moved in a direction in close contact with the rack bar 21, so that the play is absorbed. At this time, the bolt 256 fastened to the nut 254 also moves along the biasing axis toward the rack bar 21 along with the first support plate 251. If this process continues for some time and the bolt 256 is moved by d2, the bolt head 258 is in contact with the second support plate 252.
- the biasing member 231 rotates by the force of the torsion spring 235 in the direction of absorbing the generated play, while the biasing axis direction
- the second support plate 252 is also moved together, so that the clearance is compensated while the second biasing member 253 pushes the first support plate 251 and the rack bearing 100. do.
- the two-stage clearance absorbing mechanism is operated, and thus the clearance compensation can be made more effectively.
- an O-ring 238 may be installed between the first support plate 251 and the second biasing member 253.
- the O-ring 238 may be installed on one side of the first support plate 251 facing the second support plate 252.
- the first support plate 251 may be prevented from directly hitting the disc spring 253 or the second support plate 252. Accordingly, shock and noise can be prevented.
- FIG 5 and 6 are cross-sectional views of the rack bar support apparatus according to another embodiment of the present invention.
- FIG. 5 illustrates a case in which the first support plate and the nut 254 are integrally formed in FIG. 2 described above. That is, referring to FIG. 5, the first support plate 251 a is integrally formed with the nut 254. The first support plate 251a performs the same function as the first support plate 254 described above.
- the nut 254 and the first support plate 251a are integrally formed, thereby preventing the nut 254 and the bolt 256 combination from moving relative to the first support plate 251a, thereby resulting in a nut caused by vibration. Noise generated by the collision between the 254 and the first support plate 251a is essentially blocked.
- FIG. 6 illustrates a case in which the second support plate and the bolt 256 are integrally formed in FIG. 2. That is, referring to FIG. 6, the second support plate 252a is integrally formed with the head 258 of the bolt 256. Since the bolt 256 and the second support plate 252a are integrally formed, noise generated by the collision between the two is essentially blocked. In this case, the above-described spacing d2 is not formed, and the spacing d3 is formed between the nut 254 and the first plate 251 instead of d2 at the time of initial mounting. The interval d3 performs the same function as the interval d2 described above.
- the interval d3 formed at the first mounting is first absorbed.
- additional wear that occurs after the clearance d3 is completely eliminated compensates for play while the cam structure is operating.
- the present invention relates to a rack bar support device for a steering gear of a vehicle and can be applied to a steering device for a vehicle, thereby having industrial applicability.
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- General Engineering & Computer Science (AREA)
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Abstract
Description
Claims (20)
- 차량의 조향 장치의 랙 바(rack bar)를 피니언 샤프트(pinion shaft)를 향해 지지하는 랙 바 지지 장치로서,상기 랙 바에 접촉하도록 상기 피니언의 반대측에 배치되는 랙 베어링(rack bearing), 그리고상기 랙 베어링이 상기 랙 바를 밀어서 상기 랙 바가 상기 피니언 샤프트에 체결되도록 상기 랙 베어링을 바이어싱 축을 따라 상기 랙을 향해 미는 힘을 제공하는 바이어싱 어셈블리(biasing assembly)를 포함하며,상기 바이어싱 어셈블리는바이어싱 축을 따라 복수의 위치에 고정될 수 있는 어저스트먼트 플러그(adjustment plug),상기 어저스트먼트 플러그에 대해 상기 랙 베어링을 향해 상기 바이어싱 축을 따라 상대 이동할 수 있도록 형성되는 어저스트먼트 멤버(adjustment member), 그리고 상기 어저스트먼트 멤버를 상기 어저스트먼트 플러그에 대해 상기 랙 베어링을 향해 밀리도록 하는 힘을 제공하도록 상기 어저스트먼트 플러그와 상기 어저스트먼트 멤버에 각각 체결되는 제1 바이어싱 멤버(first biasing member)를 포함하는 어저스트먼트 어셈블리, 그리고상기 랙 베어링에 지지되는 제1 지지 플레이트, 상기 어저스트먼트 멤버에 의해 지지되는 상태로 상기 제1 지지 플레이트와 마주하게 배치되는 제2 지지 플레이트, 상기 제1 및 제2 지지 플레이트 사이에 게재되어 상기 제2 지지 플레이트에 대해 상기 제1 지지 플레이트를 상기 바이어싱 축을 따라 미는 힘을 제공하는 제2 바이어싱 멤버(second biasing member), 그리고 상기 제2 플레이트가 상기 랙 베어링의 반대 방향으로 이동하는 것을 제한할 수 있도록 상기 제1 및 제2 지지 플레이트를 서로 체결하는 체결 구조를 포함하는 지지 플레이트 어셈블리를 포함하는 랙 바 지지 장치.
- 제1항에서,상기 제2 바이어싱 멤버는 상기 제1 및 제2 지지 플레이트 사이에 압축 상태로 배치되는 디스크 스프링(disk spring) 또는 코일 스프링(coil spring)인 랙 바 지지 장치.
- 제2항에서,상기 디스크 스프링과 상기 제1 지지 플레이트 사이에 게재되는 오링(o-ring)을 더 포함하는 랙 바 지지 장치.
- 제1항에서,상기 체결 구조는 서로 체결되는 볼트와 너트를 포함하며,상기 제1 및 제2 지지 플레이트는 상기 볼트의 머리와 상기 너트 사이에 배치되는 랙 바 지지 장치.
- 제4항에서,상기 제2 지지 플레이트는 최초 장착 상태에서 상기 볼트의 머리와 상기 너트 중 상기 제2 지지 플레이트의 이동을 제한하기 위한 것과 이격되도록 상기 어저스트먼트 멤버에 의해 지지되는 상태로 설치되는 랙 바 지지 장치.
- 제4항에서,상기 너트와 상기 제1 지지 플레이트는 일체로 형성되는 랙 바 지지 장치.
- 제6항에서,상기 제2 지지 플레이트는 최초 장착 상태에서 상기 볼트의 머리와 상기 너트 중 상기 제2 지지 플레이트의 이동을 제한하기 위한 것과 이격되도록 상기 어저스트먼트 멤버에 의해 지지되는 상태로 설치되는 랙 바 지지 장치.
- 제4항에서,상기 제2 지지 플레이트는 상기 볼트 머리와 일체로 형성되는 랙 바 지지 장치.
- 제8항에서,상기 제2 지지 플레이트는 상기 너트가 최초 장착 상태에서 상기 제1 지지 플레이트로부터 이격되도록 상기 어저스트먼트 멤버에 의해 지지되는 상태로 설치되는 랙 바 지지 장치.
- 제1항에서,상기 제1 바이어싱 멤버는 토셔널 스프링(torsional spring)이고,상기 어저스트먼트 플러그는 제1 캠 구조를 가지며,상기 어저스트먼트 멤버는 상기 토셔널 스프링의 힘에 의해 상기 바이어싱 축 방향을 따라 상기 랙 베어링을 향해 이동할 수 있도록 상기 제1 캠 구조에 체결되는 제2 캠 구조를 가지는 랙 바 지지 장치.
- 제1항에서,상기 제2 지지 플레이트는, 최초 장착 상태에서, 상기 제2 지지 플레이트와 상기 제1 지지 플레이트 사이 및 상기 제2 지지 플레이트와 상기 체결 구조의 지지부 사이에 상기 바이어싱 축 방향을 따라 각각 간격이 존재하도록, 상기 제1 지지 플레이트와 상기 체결 구조 중 어느 것과도 상기 바이어싱 축 방향으로 접촉하지 않는 상태로 설치되는 랙 바 지지 장치.
- 차량의 조향 장치의 랙 바(rack bar)를 피니언 샤프트(pinion shaft)를 향해 지지하는 랙 바 지지 장치로서,상기 랙 바에 접촉하도록 상기 피니언의 반대측에 배치되는 랙 베어링(rack bearing), 그리고상기 랙 베어링이 상기 랙 바를 밀어서 상기 랙 바가 상기 피니언 샤프트에 체결되도록 상기 랙 베어링을 바이어싱 축을 따라 상기 랙을 향해 미는 힘을 제공하는 바이어싱 어셈블리(biasing assembly)를 포함하며,상기 바이어싱 어셈블리는바이어싱 축을 따라 복수의 위치에 고정될 수 있는 어저스트먼트 플러그(adjustment plug),상기 어저스트먼트 플러그에 대해 상기 랙 베어링을 향해 상기 바이어싱 축을 따라 상대 이동할 수 있도록 형성되는 어저스트먼트 멤버(adjustment member), 그리고 상기 어저스트먼트 멤버를 상기 어저스트먼트 플러그에 대해 상기 랙 베어링을 향해 밀리도록 하는 힘을 제공하도록 상기 어저스트먼트 플러그와 상기 어저스트먼트 멤버에 각각 체결되는 제1 바이어싱 멤버(first biasing member)를 포함하는 어저스트먼트 어셈블리, 그리고상기 랙 베어링에 지지되는 제1 지지 플레이트, 상기 어저스트먼트 멤버에 의해 지지되는 상태로 상기 제1 지지 플레이트와 마주하게 배치되는 제2 지지 플레이트, 상기 제1 및 제2 지지 플레이트 사이에 게재되어 상기 제2 지지 플레이트에 대해 상기 제1 지지 플레이트를 상기 바이어싱 축을 따라 미는 힘을 제공하는 제2 바이어싱 멤버(second biasing member), 상기 제1 지지 플레이트를 지지하는 제1 지지 부재, 그리고 상기 제1 및 제2 지지 플레이트가 사이에 위치하도록 상기 제1 지지 부재에 체결되며 상기 제2 플레이트가 상기 랙 베어링의 반대 방향으로 이동하는 것을 제한할 수 있도록 형성되는 제2 지지 부재를 포함하는 지지 플레이트 어셈블리를 포함하는 랙 바 지지 장치.
- 제12항에서,상기 제2 바이어싱 멤버는 상기 제1 및 제2 지지 플레이트 사이에 압축 상태로 배치되는 디스크 스프링(disk spring) 또는 코일 스프링(coil spring)인 랙 바 지지 장치.
- 제13항에서,상기 제2 바이어싱 멤버와 상기 제1 지지 플레이트 사이에 게재되는 오링(o-ring)을 더 포함하는 랙 바 지지 장치.
- 제12항에서,상기 제2 지지 플레이트는 최초 장착 상태에서 상기 제2 지지 부재에 의해 상기 바이어싱 축 방향으로 지지되지 않게 상기 제2 지지 부재로부터 이격되도록 상기 어저스트먼트 멤버에 의해 지지되는 상태로 설치되는 랙 바 지지 장치.
- 제12항에서,상기 제1 지지 부재와 상기 제1 지지 플레이트는 일체로 형성되는 랙 바 지지 장치.
- 제16항에서,상기 제2 지지 플레이트는 최초 장착 상태에서 상기 제2 지지 부재와 이격되도록 상기 어저스트먼트 멤버에 의해 지지되는 상태로 설치되는 랙 바 지지 장치.
- 제12항에서,상기 제2 지지 플레이트는 상기 제2 지지 부재와 일체로 형성되는 랙 바 지지 장치.
- 제18항에서,상기 제2 지지 플레이트는 상기 제1 지지 부재가 최초 장착 상태에서 상기 제1 지지 플레이트로부터 이격되도록 상기 어저스트먼트 멤버에 의해 지지되는 상태로 설치되는 랙 바 지지 장치.
- 제12항에서,상기 제2 지지 플레이트는, 최초 장착 상태에서, 상기 제2 지지 플레이트와 상기 제1 지지 플레이트 사이 및 상기 제2 지지 플레이트와 상기 제2 지지 부재 사이에 상기 바이어싱 축 방향을 따라 각각 간격이 존재하도록, 상기 제1 지지 플레이트와 상기 제2 지지 부재 중 어느 것과도 접촉하지 않는 상태로 설치되는 랙 바 지지 장치.
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JP2015500354A JP5957136B2 (ja) | 2012-03-14 | 2013-03-04 | ステアリングギヤのラックバー支持装置 |
US14/384,841 US9638297B2 (en) | 2012-03-14 | 2013-03-04 | Rack bar supporting device for steering gear |
CN201380014457.1A CN104169159B (zh) | 2012-03-14 | 2013-03-04 | 转向装置的齿杆支撑装置 |
EP13760542.4A EP2826695B1 (en) | 2012-03-14 | 2013-03-04 | Rack bar supporting device for steering gear |
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EP (1) | EP2826695B1 (ko) |
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- 2012-03-14 KR KR1020120025993A patent/KR101206836B1/ko active IP Right Grant
-
2013
- 2013-03-04 US US14/384,841 patent/US9638297B2/en not_active Expired - Fee Related
- 2013-03-04 CN CN201380014457.1A patent/CN104169159B/zh not_active Expired - Fee Related
- 2013-03-04 WO PCT/KR2013/001696 patent/WO2013137576A1/ko active Application Filing
- 2013-03-04 JP JP2015500354A patent/JP5957136B2/ja not_active Expired - Fee Related
- 2013-03-04 EP EP13760542.4A patent/EP2826695B1/en not_active Not-in-force
Patent Citations (6)
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US4095482A (en) * | 1976-02-18 | 1978-06-20 | Volkswagenwerk Aktiengesellschaft | Rack and pinion steering apparatus |
US4788878A (en) * | 1986-06-16 | 1988-12-06 | Nissan Motor Company, Limited | Rack and pinion steering gear |
JPH10250611A (ja) * | 1997-03-10 | 1998-09-22 | Toyota Motor Corp | ラックアンドピニオン式ステアリング装置 |
KR20070092018A (ko) * | 2006-03-08 | 2007-09-12 | 주식회사 만도 | 랙 피니언 방식 조향장치의 서포트 요크 자동 유격보상장치 |
EP2098435A2 (en) * | 2008-03-07 | 2009-09-09 | Delphi Technologies, Inc. | Rack and pinion steering gear with self-adjusting rack bearing |
KR20100055724A (ko) * | 2008-11-18 | 2010-05-27 | 주식회사 만도 | 자동차 조향장치의 랙바 지지장치 |
Also Published As
Publication number | Publication date |
---|---|
KR101206836B1 (ko) | 2012-11-30 |
JP2015511907A (ja) | 2015-04-23 |
CN104169159A (zh) | 2014-11-26 |
EP2826695B1 (en) | 2018-05-09 |
US20150020619A1 (en) | 2015-01-22 |
EP2826695A4 (en) | 2016-04-27 |
US9638297B2 (en) | 2017-05-02 |
JP5957136B2 (ja) | 2016-07-27 |
CN104169159B (zh) | 2016-08-17 |
EP2826695A1 (en) | 2015-01-21 |
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