WO2005095179A1 - ステアリング装置及びこれの製造方法 - Google Patents
ステアリング装置及びこれの製造方法 Download PDFInfo
- Publication number
- WO2005095179A1 WO2005095179A1 PCT/JP2005/005944 JP2005005944W WO2005095179A1 WO 2005095179 A1 WO2005095179 A1 WO 2005095179A1 JP 2005005944 W JP2005005944 W JP 2005005944W WO 2005095179 A1 WO2005095179 A1 WO 2005095179A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bracket
- steering
- steering device
- cylinder tube
- metal tube
- Prior art date
Links
Classifications
-
- 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
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49925—Inward deformation of aperture or hollow body wall
- Y10T29/49934—Inward deformation of aperture or hollow body wall by axially applying force
Definitions
- the present invention relates to a steering device provided with a turning shaft capable of moving a vehicle body in a left-right direction in response to a steering operation, and a method of manufacturing the same.
- a rack shaft that moves in the left-right direction of a vehicle body in conjunction with a pivot shaft that rotates in accordance with a steering operation, and a rack housing that accommodates and supports the rack shaft.
- a hydraulic cylinder having a piston rod connected to one end of the rack shaft and a cylinder tube connected to one end of the rack housing for guiding the piston of the piston rod, and the other end of the rack housing and the cylinder
- a first and second bracket for attaching the distal end of the tube to the vehicle body, assisting the operation of the steering mechanism in accordance with the steering operation with the hydraulic pressure generated by the hydraulic cylinder, and providing a driver for steering.
- a rack-pione type steering device configured to reduce the labor burden of the user (for example, see Patent Document 1).
- the first bracket of this conventional steering device is formed integrally with a rack housing made of aluminum.
- the second bracket is externally fitted to an iron cylinder tube and then joined by spot welding, or inserted into the outer periphery of a cylinder tube provided with knurls and three protrusions on the outer periphery in advance. They are joined by molding.
- the present invention has been made in view of the above circumstances, and a main object of the present invention is to increase the retaining strength of a bracket coupled to a metal tube portion of a housing without generating thermal strain in the metal tube portion. Another object of the present invention is to provide a steering device and a method of manufacturing the same, and it is another object of the present invention to incorporate parts such as a steering shaft which is not obstructed by a bracket, thereby improving workability in assembling. An object of the present invention is to provide a steering device and a method of manufacturing the same.
- a steering device provides a steering shaft capable of moving a vehicle body in the left-right direction in response to a steering operation, a housing accommodating the steering shaft and having a metal tube,
- the bracket has a recess in the fitting hole, and the metal pipe portion is It is characterized by having a retaining projection bent in the recess.
- a concave portion is provided in a fitting hole of a bracket into which the metal tube portion is fitted, and a retaining projection formed by bending the metal tube portion enters the concave portion.
- a steering device according to a second invention is characterized in that, in the steering device according to the first invention, the recess is an annular groove.
- the metal tube portion when the metal tube portion is bent into the concave portion, it is possible to adjust the circumferential length of the retaining convex portion, in other words, the amount of engagement of the retaining convex portion with the concave portion. Therefore, it is possible to easily obtain a type of steering device having a different retaining strength.
- a method of manufacturing a steering device is directed to a steering shaft capable of moving a vehicle body left and right in response to a steering operation, and a housing accommodating the steering shaft and having a metal tube portion.
- the metal pipe is inserted into the fitting hole having a concave portion inside thereof and the fitting hole of a bracket having an attached portion attached to a vehicle body.
- the metal tube portion is pressed radially outward, and the metal tube portion is pressed. Since a part is bent into the concave portion, a relatively large retaining strength can be obtained without generating thermal strain in the metal tube portion, and the force such as a turning shaft or the like is provided in the housing having the metal tube portion.
- the retaining projection from the space between the peripheral surface of the steering shaft and the inner peripheral surface of the metal tube portion. Parts such as the rudder axle can be incorporated, improving the workability of the assembly. The invention's effect
- a relatively large retaining strength can be obtained without generating thermal strain in the metal tube portion, and the steering shaft can be prevented from being disturbed by the bracket. It is possible to incorporate components such as the above, and it is possible to improve the assembling workability.
- FIG. 1 is a partially cutaway front view showing a configuration of a steering device according to the present invention.
- FIG. 2 is an enlarged sectional view of a main part.
- FIG. 3 is a cross-sectional view taken along line III-III of FIG. 2.
- FIG. 4 is an explanatory view showing a step of forming a retaining projection.
- FIG. 5 is an explanatory view showing another method of forming a retaining projection.
- FIG. 6 is an explanatory view showing still another method of forming a retaining projection.
- FIG. 7 is an explanatory view showing still another method of forming a retaining projection.
- FIG. 1 is a partially cutaway front view showing a configuration of a steering device according to the present invention
- FIG. 2 is an enlarged sectional view of a main part
- FIG. 3 is a sectional view taken along line III-III of FIG.
- the rack-pione type steering device shown in FIG. 1 has a transmission shaft 2 having one end connected to the steering wheel 1 via a universal joint and a steering shaft, and having a pion at the other end.
- a steered shaft 3 having rack teeth (not shown) that engages with the pinion and enabling the vehicle body to move in the left-right direction, and a cylindrical rack housing that movably accommodates and supports the steered shaft 3.
- a hydraulic cylinder having a piston rod 51 coaxially connected to one end of the steering shaft 3 and a piston 52 of the piston rod 51, and having an iron cylinder tube 53 connected to one end of the rack housing 41. 5 and have.
- the rack housing 4 1 and the cylinder tube 53 constitute a housing 4, and the cylinder tube 53 constitutes a metal tube.
- the steered shaft 3 is moved in the axial direction by a rack yoke (not shown) provided near the transmission shaft 2 of the rack housing 41 and a bearing member 11 fitted inside the tip of the cylinder tube 53. It is freely supported.
- the bearing member 11 holds a sealing member 12 such as an oil seal and an O-ring.
- the rack housing 41 is made of aluminum molded by an injection molding machine, and a first bracket 6 having a through hole 61 is provided on the other end of the rack housing 41 so as to protrude from the body. In the vicinity of the bracket 6, there is provided a pedestal portion 42 to which the shaft support housing 10 for housing and supporting the transmission shaft 2 is attached.
- a coupling portion 53a is provided on the outer peripheral surface of the distal end portion of the cylinder tube 53, and the second bracket 7 is coupled to the coupling portion 53a.
- the second bracket 7 has a metal forming member force having a fitting hole 71 into which the coupling portion 53a is fitted, and a through hole 72 formed in a direction intersecting the axis of the fitting hole 71.
- the through hole 72 is a portion to be attached to the vehicle body.
- a concave portion 73 that also has an annular groove force is provided inside the fitting hole 71.
- a retaining convex portion 8 formed by bending a part of the coupling portion 53a of the cylinder tube 53 is formed inside the fitting hole 71. Is inserted, and the bracket 7 is retained. Note that the fitting hole 71 has a dimensional tolerance that allows the fitting portion 53a to be fitted without being press-fitted.
- the hydraulic cylinder 5 has a pair of oil chambers, which are liquid-tightly sealed by sealing members 12 on both sides of the piston 52, formed inside the cylinder tube 53, and an external force applied to these oil chambers is formed.
- the piston rod 51 is pushed and pulled in the axial direction by the pressure difference generated on both sides of the piston 52 in response to the oil pressure feed, and the axial moving force is applied to the steering shaft 3 connected to the piston rod 51. It has a structure that gives you calories.
- the other end of the steered shaft 3 and the other end of the piston rod 51 are connected to steered wheels via tie rods 54,54.
- the oil chambers on both sides of the piston 52 are connected to respective oil supply pipes 13 and 14 connected to corresponding positions on the outside of the cylinder tube 53, respectively. Connected to oil ports 10a, 10b.
- the shaft support housing 10 performs a hydraulic supply / discharge operation in accordance with a steering torque applied to the transmission shaft 2 in accordance with a steering wheel operation for steering.
- a known oil pressure control valve for sending oil is built in, and oil pressure sent to oil supply ports 10a and 10b is sent to oil pressure cylinder 5 through oil supply pipes 13 and 14, and oil generated in response to the oil supply is supplied. Pressure is applied to the turning shaft 3 to assist the steering that occurs as described above.
- the piston rod 51 and the bearing member 11 connected to one end of the steered shaft 3 are inserted into the cylinder tube 53, and the steered shaft 3 and the rack are connected to the rack housing.
- the connecting portion 53 a of the cylinder tube 53 is pressed into the fitting hole 71 of the second bracket 7 and the cylinder tube 53 is connected.
- a part of the part 53a is also pressed radially outward, and a part of the coupling part 53a is bent into the concave part 73 of the bracket 7 to form the retaining projection 8, and the bracket 7 is coupled to the cylinder tube 53.
- the retaining projection 8 is formed by bending a part of the coupling portion 53a of the cylinder tube 53, it is possible to obtain a relatively large retaining strength without generating thermal strain in the cylinder tube 53. it can. Therefore, even when a relatively large axial load is applied to the rack housing 41 and the cylinder tube 53 from the steered wheels via the piston rod 51 and the steered shaft 3, it is possible to prevent the bracket 7 from being pulled out. 7 can be maintained.
- the retaining projections 8 are provided, so that the parts such as the steering shaft 3 that are not obstructed by the bracket 7 can be inserted. Workability can be improved.
- part of the cylinder tube 53 is bent after the bracket 7 is pressed into the joint 53a, the retaining strength of the bracket 7 can be increased without increasing the number of parts.
- FIG. 4 is an explanatory view showing a step of forming a retaining projection.
- the retaining projection 8 has a roll 91 of a size that can be inserted into the space between the peripheral surface of the steering shaft 3 and the inner peripheral surface of the cylinder tube 53, and an output shaft 92a coupled to the roll 91. It is formed using a bending jig 9 provided with an electric motor 92 having the same. [0031] The electric motor 92 of the bending jig 9 is disposed outside the cylinder tube 53 in the axial direction, and after the roll 91 is inserted into the space, the electric motor 92 rotates the roll 91 to bend the jig.
- the coupling portion 53a is formed in the recess 73 over the entire circumference.
- the retaining projection 8 can be formed in an annular or arcuate shape. In this way, the circumferential length of the retaining projection 8 can be adjusted, and the amount of engagement of the retaining projection 8 with the recess 73 can be adjusted, so that a steering device of a different retaining strength can be easily manufactured. Obtainable.
- a substantially C-shaped circlip 15 is fitted around the outer periphery of the bracket 7 to regulate the amount of movement of the steered shaft 3 in one axial direction.
- the control cylinder 16 is fitted into the space, the tie rods 54, 54 are connected to the steered shaft 3 and the piston rod 51 via the ball joint 55, and around the fitting hole 71 of the bracket 7 and the other end of the rack housing 41.
- One end of the bellows 17, 17 is externally fitted to the part, and the shaft support housing 10 in which the transmission shaft 2 and the hydraulic control valve are incorporated is attached to the pedestal part 42, and the oil supply pipes 13, 14 are connected.
- the concave portion 73 having an annular groove force is provided, but the concave portion 73 may be provided at a plurality of circumferential positions. In this case, the relative rotation of the bracket 7 and the cylinder tube 53 can be reliably prevented by the retaining projection 8 bent in the recess 73.
- FIG. 5 is an explanatory view showing another method for forming the retaining projection.
- the arm 21b and 21c are bent in a substantially V-shape, and the bent portions protrude in the direction in which the arms 21b and 21c are separated from each other by two arms 21b and 21c connected to each other by a pivot 21a and one end of each arm 21b and 21c.
- a bending jig provided with a substantially X-shaped rocking member 21 having formed projections 21d, 21d provided thereon, and a pressing member 22 having a substantially V-shaped cam 22a in contact with the other ends of the arms 21b, 21c.
- each forming protrusion 21d, 21d is pressed against the inner peripheral surface of the joint 53a, and a part of the joint 53a is bent into the recess 73 while plastically deforming a part of the joint 53a.
- the stop projection 8 is formed. Then, by changing the circumferential position of the swing member 21 with respect to the coupling portion 53a, a plurality of retaining protrusions 8 are formed at positions separated in the circumferential direction.
- FIG. 6 is an explanatory view showing still another method of forming the retaining projection.
- a holding cylinder 32 that freely holds the forming protrusions 31 at a plurality of circumferential positions in the radial direction and a cam 33a that is inserted into the holding cylinder 32 and engages with each forming protrusion 31.
- the holding member 32 is inserted into the connecting portion 53a using the bending jig 30 having the pressing member 33 having the pressing member 33, and the pressing member 33 is pressed in the insertion direction with the pressing member 33 inserted into the holding tube 32.
- each of the pressing members 31 can be retracted by extracting the holding cylinder 32 while moving the pressing members 33 in the extracting direction.
- the holding cylinder 32 is provided with through holes 32a for accommodating the forming protrusions 31 at a plurality of circumferential positions.
- the molding projection 31 has a pin 31a movably inserted into the through hole 32a, and a pressure receiving portion 31b having a slope inclined in a direction intersecting the moving direction of the pin 31a and having a slope contacting the cam 33a.
- FIG. 7 is an explanatory view showing still another method of forming the retaining projection.
- the forming projection 31 of the bending jig 30 shown in FIG. 6 is configured to include a pin 31c movably held in a through hole 32a of a holding cylinder 32 and a ball 3Id for pressing the pin 31c, The ball 31d is engaged with the cam 33a of the pressing member 33. Since other configurations and operations are the same as those in FIG. 6, the same components are denoted by the same reference numerals, and the detailed description thereof and the description of the operation effects will be omitted.
- the step of forming the retaining projection 8 is performed after the components such as the steered shaft 3 are assembled as shown in FIG. Even before.
- the rack-pione type steering device is used.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Controls (AREA)
- Power Steering Mechanism (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05727852A EP1757512A4 (en) | 2004-04-02 | 2005-03-29 | DIRECTION DEVICE AND METHOD OF MANUFACTURING THE SAME |
US10/599,432 US20070193383A1 (en) | 2004-04-02 | 2005-03-29 | Steering apparatus and manufacturing method of same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004110352A JP2005289293A (ja) | 2004-04-02 | 2004-04-02 | ステアリング装置及びこれの製造方法 |
JP2004-110352 | 2004-04-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005095179A1 true WO2005095179A1 (ja) | 2005-10-13 |
Family
ID=35063634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/005944 WO2005095179A1 (ja) | 2004-04-02 | 2005-03-29 | ステアリング装置及びこれの製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070193383A1 (ja) |
EP (1) | EP1757512A4 (ja) |
JP (1) | JP2005289293A (ja) |
CN (1) | CN100462269C (ja) |
WO (1) | WO2005095179A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009298279A (ja) * | 2008-06-12 | 2009-12-24 | Nsk Ltd | ラックアンドピニオン式ステアリング装置 |
CN110461496A (zh) * | 2017-03-27 | 2019-11-15 | 日本精工株式会社 | 转向装置用轴、转向装置用轴的制造方法及电动助力转向装置 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100836401B1 (ko) * | 2006-10-02 | 2008-06-09 | 현대자동차주식회사 | 차량의 agcs용 액츄에이터 |
JP5136098B2 (ja) * | 2008-02-07 | 2013-02-06 | 日本精工株式会社 | 車両用ステアリング装置のラックハウジング構造 |
JP5213646B2 (ja) * | 2008-11-04 | 2013-06-19 | カヤバ工業株式会社 | パワーステアリング装置 |
DE102009001805A1 (de) * | 2009-03-24 | 2010-10-14 | Tedrive Holding B.V. | Zahnstangengehäuse mit Querschnittsverengungen |
US8745872B2 (en) | 2009-03-24 | 2014-06-10 | Ford Global Technologies, Llc | Method for attaching a supporting bearing in a steering rack housing for a power steering system |
EP2246237A1 (en) * | 2009-04-29 | 2010-11-03 | Cie Automotive, S.A. | Power steering for vehicles |
JP2011126479A (ja) * | 2009-12-21 | 2011-06-30 | Hitachi Automotive Systems Ltd | パワーステアリング装置 |
JP5871164B2 (ja) * | 2012-03-02 | 2016-03-01 | 株式会社ジェイテクト | 車両用操舵装置 |
AU2015221444B2 (en) * | 2015-05-06 | 2020-07-02 | Ticbar Pty Ltd | A piston assembly |
KR101703596B1 (ko) * | 2015-07-24 | 2017-02-07 | 현대자동차 주식회사 | 전방 차체 구조 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5568474A (en) * | 1978-11-10 | 1980-05-23 | Zahnradfabrik Friedrichshafen | Steering rack and pinion |
JPS5598678U (ja) * | 1978-12-12 | 1980-07-09 | ||
JP2002002513A (ja) * | 2000-06-21 | 2002-01-09 | Koyo Seiko Co Ltd | 舵取装置 |
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US586438A (en) * | 1897-07-13 | Inven | ||
US184602A (en) * | 1876-11-21 | Improvement in tube expanders and cutters | ||
US756670A (en) * | 1903-07-27 | 1904-04-05 | Walter L Marr | Steering-gear for automobiles. |
US779896A (en) * | 1904-08-08 | 1905-01-10 | John Wood Jr | Flanged pipe. |
US943117A (en) * | 1907-10-17 | 1909-12-14 | Daniel A Lucas | Boiler-flue expander. |
US1502729A (en) * | 1923-08-03 | 1924-07-29 | Advance Prod Corp | Method of assembling radiator caps |
US2479702A (en) * | 1945-08-22 | 1949-08-23 | Weatherhead Co | Coupling |
US2836079A (en) * | 1956-07-30 | 1958-05-27 | Anton J Salch | Safety steering shaft |
US3262332A (en) * | 1965-03-19 | 1966-07-26 | Gen Motors Corp | Telescopeable steering assembly |
US3394612A (en) * | 1966-09-15 | 1968-07-30 | Gen Motors Corp | Steering column assembly |
US3908479A (en) * | 1973-12-10 | 1975-09-30 | Stanley I Macduff | Variable ratio rack and pinion power steering gear |
US4229259A (en) * | 1977-09-08 | 1980-10-21 | Westinghouse Electric Corp. | Grid sleeve bulge tool |
JPH037070U (ja) * | 1989-06-09 | 1991-01-23 | ||
JPH062958U (ja) * | 1992-06-10 | 1994-01-14 | 自動車電機工業株式会社 | ファンモータのブラケット固定構造 |
US5848469A (en) * | 1996-09-26 | 1998-12-15 | The Budd Company | Vehicle frame with side/cross member joint |
US6176343B1 (en) * | 1997-12-15 | 2001-01-23 | Trw Inc. | Vehicle steering apparatus |
JP3667072B2 (ja) * | 1998-01-19 | 2005-07-06 | 光洋精工株式会社 | ラックピニオン式舵取装置 |
JP3843205B2 (ja) * | 2000-07-24 | 2006-11-08 | 株式会社ジェイテクト | 舵取り装置の取付構造 |
JP3806587B2 (ja) * | 2000-08-11 | 2006-08-09 | 株式会社ジェイテクト | 舵取装置の取付構造 |
US6722465B2 (en) * | 2001-07-06 | 2004-04-20 | Visteon Global Technologies, Inc | Steering mechanism for an automotive vehicle |
-
2004
- 2004-04-02 JP JP2004110352A patent/JP2005289293A/ja not_active Ceased
-
2005
- 2005-03-29 EP EP05727852A patent/EP1757512A4/en not_active Withdrawn
- 2005-03-29 WO PCT/JP2005/005944 patent/WO2005095179A1/ja not_active Application Discontinuation
- 2005-03-29 US US10/599,432 patent/US20070193383A1/en not_active Abandoned
- 2005-03-29 CN CNB2005800099942A patent/CN100462269C/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5568474A (en) * | 1978-11-10 | 1980-05-23 | Zahnradfabrik Friedrichshafen | Steering rack and pinion |
JPS5598678U (ja) * | 1978-12-12 | 1980-07-09 | ||
JP2002002513A (ja) * | 2000-06-21 | 2002-01-09 | Koyo Seiko Co Ltd | 舵取装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1757512A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009298279A (ja) * | 2008-06-12 | 2009-12-24 | Nsk Ltd | ラックアンドピニオン式ステアリング装置 |
CN110461496A (zh) * | 2017-03-27 | 2019-11-15 | 日本精工株式会社 | 转向装置用轴、转向装置用轴的制造方法及电动助力转向装置 |
Also Published As
Publication number | Publication date |
---|---|
JP2005289293A (ja) | 2005-10-20 |
EP1757512A4 (en) | 2007-07-25 |
US20070193383A1 (en) | 2007-08-23 |
CN1938186A (zh) | 2007-03-28 |
CN100462269C (zh) | 2009-02-18 |
EP1757512A1 (en) | 2007-02-28 |
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