WO2005066514A1 - 車両ステアリング用伸縮軸 - Google Patents
車両ステアリング用伸縮軸 Download PDFInfo
- Publication number
- WO2005066514A1 WO2005066514A1 PCT/JP2004/019844 JP2004019844W WO2005066514A1 WO 2005066514 A1 WO2005066514 A1 WO 2005066514A1 JP 2004019844 W JP2004019844 W JP 2004019844W WO 2005066514 A1 WO2005066514 A1 WO 2005066514A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shaft
- female
- male
- vehicle steering
- elastic body
- Prior art date
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Classifications
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
- F16D3/843—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
- B62D1/185—Steering columns yieldable or adjustable, e.g. tiltable adjustable by axial displacement, e.g. telescopically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/20—Connecting steering column to steering gear
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
- F16J15/3252—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3268—Mounting of sealing rings
- F16J15/3276—Mounting of sealing rings with additional static sealing between the sealing, or its casing or support, and the surface on which it is mounted
Definitions
- the present invention is incorporated in a steering shaft of a vehicle, and a female shaft and a male shaft are fitted so as not to rotate relative to each other and slidable, and the fitting portion of the female / male shaft is sealed to allow rain into the fitting portion.
- the present invention relates to a telescopic shaft for vehicle steering provided with a seal member that prevents intrusion of water or the like.
- the intermediate shaft is composed of a telescopic shaft that is spline-fitted, etc., and absorbs axial displacement that occurs when the vehicle travels, and does not transmit the displacement or vibration to the steering wheel. It ’s like that.
- the intermediate shaft is composed of a spline-fitted female shaft and a male shaft, and the end of the female shaft
- a substantially cap-shaped seal member is attached to the seal member, and the seal member is composed only of an elastic body such as rubber.
- the lip portion of this seal member is slidably in contact with the outer peripheral surface of the male shaft (that is, contacted with frictional force), so that rainwater, muddy water, dust, etc. into the fitting portion of the female / male shaft can be obtained. Intrusion is prevented.
- the sealing member is composed of a cored bar and an elastic body such as rubber that covers the cored bar, and the lip of the elastic body The part is slidably in contact with the outer peripheral surface of the male shaft (contacted with frictional force), and the inside of the fitting part of the female / male shaft is sealed.
- FIG. 16 is a longitudinal sectional view of a telescopic shaft for vehicle steering according to a conventional example.
- the intermediate shaft 5 includes a female shaft 10 and a male shaft 11 that are spline-fitted.
- a male spline portion 1 1 a (or a male selection portion) is formed on the outer peripheral surface of the male shaft 1 1. It is configured to be movable and not capable of relative rotation. Note that the sealing member described above is not mounted in this conventional example.
- a cored bar is embedded in the elastic body of the seal member, but the end of the cored bar is from the outer peripheral surface of the male shaft. It is located at a distant position, mainly for mounting the seal member on the end of the female shaft, and cannot function to prevent falling. Disclosure of the invention
- the present invention has been made in view of the circumstances as described above, and reliably seals the fitting portion of the female and male shafts to prevent intrusion of rainwater, muddy water, dust, etc. into the fitting portion.
- An object of the present invention is to provide a telescopic shaft for vehicle steering that can reliably prevent the female / male shaft from falling.
- a telescopic shaft for vehicle steering is incorporated in a steering shaft of a vehicle, and a female shaft and a male shaft are fitted in a relatively non-rotatable and slidable manner,
- the seal member is composed of a highly rigid support member and an elastic body
- the support member has a substantially intermediate portion bent, and one side thereof is a fixing portion fixed to the end portion of the female shaft, and at least the tip portion on the other side has the elastic body as the male member. It is a mounted part that is mounted so as to contact the outer peripheral surface of the shaft with frictional force.
- the support member is preferably formed from a metal material.
- the tip of the mounted portion of the support member and the outer peripheral surface of the male shaft are substantially close to each other without being in contact with each other.
- the male shaft is processed so that the outer peripheral surface thereof is fitted to the inner peripheral surface of the female shaft so as not to be relatively rotatable and slidable.
- the distal end portion of the mounted portion of the support member is set so that the inner diameter thereof is smaller than the outer diameter of the peristaltic processing portion.
- a solid lubricating film is coated on at least one of the portions where the elastic body and the male shaft are in contact with each other.
- the elastic body has a grease reservoir.
- a second elastic body is interposed between the end of the fixing portion of the support member and the female shaft.
- the seal member is composed of a high-rigidity support member and an elastic body, and the support member is bent at its substantially middle portion, and one side thereof is at the end of the female shaft. At least the tip part on the other side of the fixed part is fixed. Because it is a mounted part that is attached so that it comes into contact, the female / male shaft fitting part is securely sealed to prevent intrusion of rainwater, muddy water, dust, etc. into the fitting part, The female-male shaft can be reliably prevented from falling, and if abnormal noise occurs, sliding failure can be prevented.
- FIG. 1 is a side view of a vehicle steering apparatus according to the present invention.
- FIG. 2A is a cross-sectional view of the telescopic shaft for vehicle steering according to the first embodiment of the present invention
- FIG. 2B is a cross-sectional view of the seal member shown in FIG. 2A.
- FIG. 3A is a cross-sectional view of the telescopic shaft for vehicle steering according to the second embodiment of the present invention
- FIG. 3B is a cross-sectional view of the seal member shown in FIG. 3A.
- FIG. 4A is a cross-sectional view of the telescopic shaft for vehicle steering according to the third embodiment of the present invention
- FIG. 4B is a cross-sectional view of the seal member shown in FIG. 4A.
- FIG. 5A is a cross-sectional view of a telescopic shaft for vehicle steering according to a fourth embodiment of the present invention
- FIG. 5B is a cross-sectional view of the seal member shown in FIG. 5A.
- FIG. 6A is a cross-sectional view of a telescopic shaft for vehicle steering according to a fifth embodiment of the present invention
- FIG. 6B is a cross-sectional view of the seal member shown in FIG. 6A.
- FIG. 7A is a cross-sectional view of the seal member of the telescopic shaft for vehicle steering according to the sixth embodiment of the present invention
- FIG. 7B shows the telescopic shaft for vehicle steering according to the seventh embodiment of the present invention.
- FIG. 8A, FIG. 8B, and FIG. 8C relate to an eighth embodiment of the present invention, and are longitudinal sectional views according to modifications of the female-male shaft, respectively.
- FIG. 9A is a cross-sectional view of the female / male shaft shown in FIG. 8A
- FIG. 9B is an enlarged vertical cross-sectional view of the end of the female / male shaft shown in FIG. 8A.
- FIG. 10 is a cross-sectional view of the female / male shaft shown in FIG. 8B.
- FIG. 11 is a sectional view of a telescopic shaft for vehicle steering according to a ninth embodiment of the present invention. It is.
- FIG. 12 is a cross-sectional view of the telescopic shaft for vehicle steering according to the tenth embodiment of the present invention.
- FIG. 13 is a cross-sectional view of the telescopic shaft for vehicle steering according to the first modification of the tenth embodiment of the present invention.
- FIG. 14 is a cross-sectional view of a telescopic shaft for vehicle steering according to a second modification of the tenth embodiment of the present invention.
- FIG. 15 is a cross-sectional view of a telescopic shaft for vehicle steering according to a third modification of the 10th embodiment of the present invention.
- FIG. 16 is a longitudinal sectional view of a telescopic shaft for vehicle steering according to a conventional example.
- FIG. 1 is a side view of a vehicle steering apparatus according to the present invention.
- a steering shaft 3 having a steering wheel 2 mounted on the rear end is rotatably supported.
- An expandable intermediate shaft 5 is connected to the front end of the steering shaft 3 via a universal joint 4.
- a rack and pinion type steering gear (not shown) is connected to the lower end of the intermediate shaft 5 via a universal joint 6, and a wheel (not shown) is connected to the steering gear via a tie rod (not shown). (Omitted) are connected so that the wheels can be steered.
- FIG. 2A is a cross-sectional view of the telescopic shaft for vehicle steering according to the first embodiment of the present invention
- FIG. 2B is a cross-sectional view of the seal member shown in FIG. 2A
- the intermediate shaft 5 includes a female shaft 10 and a male shaft 11 that are spline-fitted.
- a female spline portion 10 a (or female selection portion) is formed on the inner peripheral surface of the female shaft 10
- a male spline portion 1 1 a (or male selection portion) is formed on the outer peripheral surface of the male shaft 11.
- These shafts 10 and 11 are configured to be slidable and not rotatable relative to each other.
- a seal member s is attached to the end of the female shaft 10 so as to seal the fitting portion of the female / male shafts 10 and 11 and prevent intrusion of rainwater or muddy water into the fitting portion.
- the seal member S is composed of a metal ring-shaped support member 20 having rigidity and an elastic body 30 such as rubber or elastomer.
- the support member 20 has a substantially intermediate portion bent approximately 90 degrees in a substantially arc shape, and has a cylindrical fixing portion 21 fixed to the end of the female shaft 10 and a radially inward portion.
- the elastic body 30 is configured to include a mounted portion 2 2 that is mounted so as to contact the outer peripheral surface of the male shaft 11 with frictional force.
- the fixed portion 21 is press-fitted into an annular concave step portion 10 b formed on the outer periphery of the end portion of the female shaft 10. That is, the recessed step portion 1 Ob of the female shaft 10 and the inner peripheral surface of the fixing portion 21 are directly fitted (that is, by contact between metals).
- the gap ( ⁇ ) between the tip portion and the outer peripheral surface of the male shaft 11 is preferably set to about 0.2 to 1 mm.
- the tip portion of the mounted portion 22 is set such that its inner diameter (cp d) is smaller than the outer diameter (cpD) of the tooth tip of the male spline portion 11 a.
- the seal member S can also function as a retainer for the male shaft 11 when the intermediate shaft 5 is conveyed and assembled.
- the elastic body 30 is in sliding contact with the outer peripheral surface of the male shaft 11 with an appropriate tightening allowance.
- the elastic body 30 has one seal lip portion 31. ing.
- the seal lip 31 has a substantially triangular cross section, but is not limited to this. It is not something.
- the fitting portion of the female / male shafts 10 and 11 can be securely sealed to prevent intrusion of rainwater, muddy water, dust, or the like into the fitting portion.
- the elastic body 30 can also serve as a dust seal and can also prevent grease from leaking at the sliding portion.
- the grease used for the seal lip portion 31 is preferably one containing molybdenum disulfide or PTFE (polytetrafluoroethylene).
- FIG. 3A is a cross-sectional view of the telescopic shaft for vehicle steering according to the second embodiment of the present invention
- FIG. 3B is a cross-sectional view of the seal member shown in FIG. 3A.
- the elastic body 30 has two seal lip portions 31.
- the fitting portions of the female and male shafts 10 and 11 can be reliably sealed to prevent intrusion of rainwater, muddy water, dust, or the like into the fitting portions.
- the grease reservoir 3 2 functions to reduce sliding resistance during sliding and to help prevent intrusion of muddy water, dust, etc., as grease always accumulates in the grease reservoir 3 2. .
- FIG. 4A is a cross-sectional view of the telescopic shaft for vehicle steering according to the third embodiment of the present invention
- FIG. 4B is a cross-sectional view of the seal member shown in FIG. 4A.
- the basic structure of this embodiment is the same as that of the first embodiment described above, and only different points will be described.
- the fixing portion 21 of the support member 20 and the mounted portion 2 2 are bent in a substantially arc shape at an obtuse angle (90 ° or more). This prevents the lip of the dust cover from being pulled when the dust cover (hole cover) is assembled, thereby improving the assemblability.
- the elastic body 30 covers almost the entire mounting portion 22 and has two seal lip portions 31.
- the fitting portion of the female / male shafts 10 and 11 can be securely sealed to prevent rainwater, muddy water, dust and the like from entering the fitting portion.
- a grease reservoir portion 3 2 is formed between these two seal lip portions 31, a grease reservoir portion 3 2 is formed.
- the grease reservoir 3 2 functions to reduce sliding resistance during sliding and to help prevent intrusion of muddy water and dust, etc., because grease always accumulates in the grease reservoir 3 2. .
- the elastic body 30 has a contact portion 33 that contacts the distal end surface of the female shaft 10.
- This contact portion 33 can improve the sealing performance. As a result, the infiltration of muddy water, dust, etc. in the metal fitting portion can be prevented more reliably.
- FIG. 5A is a cross-sectional view of a telescopic shaft for vehicle steering according to a fourth embodiment of the present invention
- FIG. 5B is a cross-sectional view of the seal member shown in FIG. 5A.
- the elastic body 30 has two seal lip portions 31.
- the fitting portions of the female and male shafts 10 and 11 can be reliably sealed to prevent intrusion of rainwater, muddy water, dust, or the like into the fitting portions.
- a grease reservoir portion 32 is formed between these two seal lip portions 31, a grease reservoir portion 32 is formed.
- the grease reservoir 3 2 functions to reduce sliding resistance during sliding and to help prevent intrusion of muddy water and dust, etc., because grease always accumulates in the grease reservoir 3 2.
- the elastic body 30 has a contact portion 33 that contacts the distal end surface of the female shaft 10. This contact portion 33 can improve the sealing performance.
- the intermediate portion 2 3 is provided between the fixing portion 21 of the support member 20 and the mounted portion 2 2, and the fixing portion 21 and the intermediate portion 2 3 have an obtuse angle. It is bent in a substantially arc shape at an angle, and the intermediate portion 2 3 and the mounted portion 2 2 are bent in a substantially arc shape at an obtuse angle.
- a notch portion 24 is formed in the fixing portion 21 of the support member 20, whereby the locking piece 25 is cut and raised. Further, a recessed step locking portion 10 c is formed on the outer peripheral surface of the female shaft 10. Although not shown, four notches 24 are formed in the circumferential direction, but the number is not limited.
- FIG. 6A is a cross-sectional view of a telescopic shaft for vehicle steering according to a fifth embodiment of the present invention
- FIG. 6B is a cross-sectional view of the seal member shown in FIG. 6A.
- elliptical protrusions 34 are formed on the inner peripheral surface of the elastic body 30 (that is, the surface facing the male shaft 11).
- These elliptical projections 3 4 come into contact with the outer peripheral surface of the male shaft 1 1 when the male shaft 1 1 falls in the direction perpendicular to the axis by the gap between the male shaft 1 0 and the female shaft 1 1. Prevent sound.
- the contact area by the projections 3 4 can reduce the contact area, and has the effect of reducing resistance during sliding.
- the main purpose is to prevent the hitting sound when the male shaft 11 falls and to prevent the slide resistance from rising, by preventing water and dust from entering.
- FIG. 7A is a sectional view of a seal member for a telescopic shaft for vehicle steering according to a sixth embodiment of the present invention.
- the basic structure of this embodiment is the same as that of the second (or first) embodiment described above, and only different points will be described.
- the inner peripheral surface of the elastic body 30 that is, the surface facing the male shaft 11
- SLM solid lubricating film
- FIG. 7B is a cross-sectional view of the telescopic shaft for vehicle steering according to the seventh embodiment of the present invention.
- the basic structure of this embodiment is the same as that of the second (or first) embodiment described above, and only different points will be described.
- the outer peripheral surface of the male shaft 11 that is, the surface facing the elastic body 30
- a solid lubricating film SLM As a result, the sliding resistance can be reduced when the female shafts 10 and 11 are slid.
- both the elastic body 30 and the male shaft 11 may be coated.
- FIG. 8A, FIG. 8B and FIG. 8C relate to an eighth embodiment of the present invention, and are longitudinal sectional views according to modifications of the female / male shaft, respectively.
- FIG. 9A is a cross-sectional view of the female / male shaft shown in FIG. 8A
- FIG. 9B is an enlarged vertical cross-sectional view of the end of the female / male shaft shown in FIG. 8A
- FIG. 10 is a cross-sectional view of the female / male shaft shown in FIG. 8B.
- seal member in the modification of the female / male shaft shown in FIGS. 8A, 8B and 8C is the same as that of the first embodiment described above.
- three axial grooves 4 3 are arranged on the outer peripheral surface of the male shaft 1 1 at equal intervals of 120 degrees in the circumferential direction (phase). Formed.
- three axial grooves 45 are equally formed on the inner peripheral surface of the female shaft 10 so as to extend at an interval (phase) of 120 degrees in the circumferential direction.
- a plurality of rigid spherical bodies that roll between the axial grooves 4 3 of the male shaft 1 1 and the axial grooves 4 5 of the female shaft 1 0 when the two shafts 10 0 and 1 1 move relative to each other in the axial direction.
- a body 47 also called a rolling element or a pole
- the axial groove 45 of the female shaft 10 has a substantially arc-shaped cross section or a Gothic arch shape.
- the axial groove 4 3 of the male shaft 11 is composed of a pair of inclined flat side surfaces 4 3 a and a bottom surface 4 3 b formed flat between the pair of flat side surfaces 4 3 a. .
- a leaf spring 49 for contacting and preloading the spherical body 47 is interposed between the axial groove 43 of the male shaft 11 and the spherical body 47.
- the plate panel 49 is in contact with the spherical body 47 at two points, and is separated from the spherical body side contact part 49a by a predetermined distance from the spherical body side contact part 49a.
- Male shaft 1 1 Axial groove 4 3 Planar side surface 4 3 Groove surface side contact portion 4 9 b that contacts a, spherical body side contact portion 4 9 a and groove surface side contact portion 4 9 b are separated from each other And a bottom portion 4 9 d facing the bottom surface 4 3 b of the axial groove 4 3.
- the urging portion 4 9 c is a substantially U-shaped bent shape that is bent in a substantially arc shape, and the bent-side urging portion 4 9 c causes the spherical body side contact portion 4 9 a and the groove surface to be bent.
- the side contact portions 4 9 b can be elastically biased so as to be separated from each other.
- the outer surface of the male shaft 1 1 has a circumferential interval of 120 degrees (phase).
- the outer surface of the male shaft 1 1 has a circumferential interval of 120 degrees (phase).
- three axial grooves 46 are equally formed on the inner peripheral surface of the female shaft 10 so as to be evenly spaced at intervals of 120 degrees in the circumferential direction (phase).
- axial groove 4 4 of the male shaft 1 1 and the axial groove 4 6 of the female shaft 10 there are a plurality of rigid bodies that slide and slide during the axial relative movement of both shafts 10, 11.
- Cylindrical body 4 8 also called sliding body or double roller
- These axial grooves 4 4 and 4 6 have a substantially circular arc shape or a Gothic arch shape in cross section.
- a small-diameter portion 1 1 b is formed at the end of the male shaft 1 1, and the small-diameter portion lib sandwiches the elastic plate 41 and the elastic plate 41.
- a stopper member consisting of a pair of annular flat plates 4 2 and 4 2 is fitted and fixed by caulking. This stopper member is in contact with one end of a needle roller 48 interposed between the axial grooves 44 and 46 so as to restrict the needle roller in the axial direction and to provide an appropriate preload. It is summer.
- the spherical body 47 is interposed between the male shaft 11 and the female shaft 10, and the spherical body 47 is loosely separated from the female shaft 10 by the leaf spring 4 9. Since it is preloaded to the extent that there is no sticking, it is possible to reliably prevent backlash between the male shaft 1 1 and the female shaft 10 during low torque transmission, and the male shaft 1 1 and female shaft 1 0. When moving relatively in the axial direction, it can slide with a stable sliding load without rattling.
- the leaf springs 4 9 are elastically deformed to restrain the spherical bodies 4 7 in the circumferential direction, and three rows of cylindrical bodies 4 8 interposed between the male shafts 11 and 10 are formed. It plays the role of main torque transmission.
- the plate panel 4 9 when torque is input from the male shaft 1 1, the plate panel 4 9 is preloaded in the initial stage, so there is no play and the leaf spring 4 9 generates a reaction force against the torque. Transmit torque. At this time, overall torque transmission is performed with the transmission torque between the male shaft 11, the plate panel 4 9 ⁇ the spherical body 4 7 and the female shaft 10 balanced with the input torque. As the torque further increases, there is no clearance in the rotational direction of the male shaft 1 1 and female shaft 10 via the cylindrical body 48, and the subsequent torque increases are represented by the male shaft 1 1 and female shaft 1 0. The cylindrical body 48 is transmitted via. Therefore, it is possible to reliably prevent backlash in the rotational direction of the male shaft 11 and the female shaft 10 and to transmit torque in a highly rigid state.
- the cylindrical body 48 is provided in addition to the spherical body 47, so that a large part of the load can be supported by the cylindrical body 48 when a large torque is input. Therefore, the contact pressure between the axial groove 4 5 of the female shaft 10 and the spherical body 47 can be reduced to improve the durability, and at the time of heavy torque load, the torque is transmitted in a highly rigid state. be able to.
- the end of the male shaft 11 is formed in a hollow or cylindrical shape, and a plurality of (in the illustrated example, four) slits 51 are formed in the axial direction. It is extended to. As a result, the end of the male shaft 11 can be reduced or expanded.
- a screw-type diameter adjusting mechanism is provided at the hollow end of the male shaft 11. That is, as shown in FIG. 10, a nut member 52 having a female screw on its inner peripheral surface is erected in the radial direction, and an adjustment port 53 is screwed to the nut member 52. .
- a support member 54 is provided opposite to the nut member 52, and the tip of the adjustment port 53 is brought into contact with the support member 54 so that it can be pressed.
- the adjustment bolt 53 is adjusted to reduce the pressing force from the adjustment port 53 to the support member 54, the hollow end portion of the male shaft 11 provided with the slit 51 is reduced in diameter. .
- the sliding resistance of the female / male shafts 10 and 11 can be reduced.
- the adjustment port 53 is adjusted to increase the pressing force from the adjustment bolt 53 to the support member 54, the hollow end portion of the male shaft 11 provided with the slit 51 increases in diameter. As a result, the sliding resistance of the female and male shafts 10 and 11 can be increased.
- the intermediate shaft 5 includes a female shaft 10 and a male shaft 11 which are spline-fitted.
- a female spline portion 10 a (or female selection portion) is formed on the inner peripheral surface of the female shaft 10
- a male spline portion 1 1 a (or male selection portion) is formed on the outer peripheral surface of the male shaft 11.
- These shafts 10 and 11 are configured to be slidable and non-rotatable relative to each other.
- the male spline portion 1 1 a of the male shaft 1 1, the female spline portion 1 0 a of the female shaft 1 0, or both the shafts 1 0, 1 1 are coated with a solid lubricant coating S L S L M.
- the solid lubricant film S L M may be coated with a resin.
- FIG. 11 is a sectional view of a telescopic shaft for vehicle steering according to a ninth embodiment of the present invention.
- a concave step portion 10 d is formed on the inner peripheral surface of the end portion of the female shaft 10, and the cylindrical fixing portion 2 of the support member 20 is formed on the concave step portion 10 i. 1 is press-fitted and fixed. That is, the inner peripheral surface of the recessed step portion 10d and the outer peripheral surface of the fixing portion 21 are fitted directly (that is, by contact between metals).
- the support member 20 is press-fitted outside the end of the female shaft 10. Rigidity against falling or twisting is stronger than the case (form of the first implementation etc.).
- FIG. 12 is a cross-sectional view of the telescopic shaft for vehicle steering according to the tenth embodiment of the present invention.
- the second elastic body 60 is interposed between the end of the cylindrical fixing portion 21 of the support member 20 (the end as viewed from FIG. 12) and the female shaft 10. It is characterized by being. That is, between the end portion of the fixing portion 21 of the support member 20 (the right end as viewed in FIG. 12) and the wall portion of the concave step portion 10 b of the female shaft 10 is made of rubber, elastomer, or the like. O A second elastic body 60 such as a ring is mounted, and is configured to perform a sealing action on the wall portion of the concave step portion 10 b of the female shaft 10.
- FIG. 13 is a cross-sectional view of the telescopic shaft for vehicle steering according to the first modification of the tenth embodiment of the present invention.
- the second elastic body 60 has double seal lips 6 1, 6 2, and these seal lips 6 1, 6 2 are formed on the concave step portion 10 0 b of the female shaft 10 0. It is configured to seal against the wall. Also, grease can be put in the grease reservoir to further secure the seal.
- Other configurations, operations, and effects are the same as those in the tenth embodiment described above.
- FIG. 14 is a cross-sectional view of a telescopic shaft for vehicle steering according to a second modification of the tenth embodiment of the present invention.
- the second elastic body 60 is bonded to the wall portion side of the concave step portion 10 b of the female shaft 10 b. It is attached by etc.
- the sealing member 21 is configured to perform a sealing action on the end portion of the fixing portion 21 of the support member 20.
- FIG. 15 is a cross-sectional view of a telescopic shaft for vehicle steering according to a third modification of the 10th embodiment of the present invention.
- hook-shaped protrusions 6 3 are formed on the wall portion of the concave step portion 10 0 b of the female shaft 10, and 0-ring 6 0 (second elastic body) is formed inside these portions. Is stored.
- Other configurations, operations, and effects are the same as those in the tenth embodiment described above.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04808193A EP1705394A1 (en) | 2004-01-08 | 2004-12-28 | Telescopic shaft for vehicle steering |
US10/585,667 US20090270188A1 (en) | 2004-01-08 | 2004-12-28 | Telescopic Shaft for Vehicle Steering |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004003289A JP2005195120A (ja) | 2004-01-08 | 2004-01-08 | 車両ステアリング用伸縮軸 |
JP2004-003289 | 2004-01-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005066514A1 true WO2005066514A1 (ja) | 2005-07-21 |
Family
ID=34747071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/019844 WO2005066514A1 (ja) | 2004-01-08 | 2004-12-28 | 車両ステアリング用伸縮軸 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20090270188A1 (ja) |
EP (1) | EP1705394A1 (ja) |
JP (1) | JP2005195120A (ja) |
CN (1) | CN1902409A (ja) |
WO (1) | WO2005066514A1 (ja) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5073319B2 (ja) * | 2007-03-02 | 2012-11-14 | 株式会社フコク | 等速ジョイント用ブーツ |
JP5036063B2 (ja) | 2008-06-10 | 2012-09-26 | 日本発條株式会社 | 架空線用テンションバランサ装置および架空線用テンションバランサ防水カバー |
DE102009000432A1 (de) * | 2009-01-27 | 2010-07-29 | Zf Lenksysteme Gmbh | Teleskopierbare Lenkwelle |
JP5509721B2 (ja) * | 2009-08-10 | 2014-06-04 | 日本精工株式会社 | 車両用ステアリング装置 |
FR2958907B1 (fr) * | 2010-04-20 | 2012-11-09 | Jtekt Europe Sas | Colonne de direction avec mecanisme de reglage telescopique et/ou fonction d'absorption d'energie par retraction |
JP5397439B2 (ja) * | 2011-09-13 | 2014-01-22 | 日本精工株式会社 | ステアリング装置 |
CN203005509U (zh) * | 2011-09-26 | 2013-06-19 | 爱信精机株式会社 | 车辆的转向装置 |
KR101503113B1 (ko) * | 2012-03-29 | 2015-03-16 | 주식회사 만도 | 자동차 조향장치의 중간축 |
JP5900118B2 (ja) * | 2012-04-04 | 2016-04-06 | 日本精工株式会社 | ステアリング装置 |
KR101352155B1 (ko) * | 2012-06-13 | 2014-01-14 | 정재동 | 상향식 도어 개폐장치 |
CN103754252A (zh) * | 2014-01-22 | 2014-04-30 | 芜湖爱瑞特环保科技有限公司 | 一种洗地机方向盘可调节机构 |
CN106553685B (zh) * | 2015-09-29 | 2018-10-12 | 长城汽车股份有限公司 | 转向管柱传动轴 |
JP6798122B2 (ja) * | 2016-03-22 | 2020-12-09 | 日本精工株式会社 | 伸縮自在シャフト |
EP3228918A1 (en) * | 2016-04-05 | 2017-10-11 | Siemens Aktiengesellschaft | Guard device |
DE102016215869A1 (de) | 2016-08-24 | 2018-03-01 | Thyssenkrupp Ag | Längenveränderbare Lenkwelle und Verfahren zur Herstellung einer längenveränderbaren Lenkwelle |
JP7052310B2 (ja) * | 2017-06-20 | 2022-04-12 | 日本精工株式会社 | ステアリング装置及び中間シャフト |
DE102017221075B4 (de) * | 2017-11-24 | 2019-06-27 | Thyssenkrupp Ag | Lenkwelle für ein Kraftfahrzeug |
US11167787B2 (en) * | 2018-03-30 | 2021-11-09 | Steering Solutions Ip Holding Corporation | Collapsible steering column assembly |
JP7249842B2 (ja) * | 2019-03-26 | 2023-03-31 | 株式会社山田製作所 | ステアリングシャフト及びステアリングシャフトの製造方法 |
JP7342631B2 (ja) * | 2019-11-07 | 2023-09-12 | 日本精工株式会社 | ホールカバー付きアウタチューブ |
US11858547B2 (en) | 2021-09-24 | 2024-01-02 | Schaeffler Technologies AG & Co. KG | Intermediate shaft assembly for steering column |
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US754066A (en) * | 1903-10-05 | 1904-03-08 | Ernst Gustav Hoffmann | Telescopic joint for shafting, &c. |
US3248900A (en) * | 1964-02-13 | 1966-05-03 | Twin Disc Clutch Co | Anti-friction slip joint |
US3279218A (en) * | 1964-05-11 | 1966-10-18 | Rockwell Standard Co | Extensible drive connections |
US3365914A (en) * | 1965-03-17 | 1968-01-30 | Holset Engineering Co | Rotary coupling |
US3400558A (en) * | 1965-04-09 | 1968-09-10 | Dana Corp | Low friction sliding and torque transmitting connection |
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2004
- 2004-01-08 JP JP2004003289A patent/JP2005195120A/ja not_active Withdrawn
- 2004-12-28 EP EP04808193A patent/EP1705394A1/en not_active Withdrawn
- 2004-12-28 WO PCT/JP2004/019844 patent/WO2005066514A1/ja not_active Application Discontinuation
- 2004-12-28 US US10/585,667 patent/US20090270188A1/en not_active Abandoned
- 2004-12-28 CN CNA2004800401942A patent/CN1902409A/zh active Pending
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JPS5570623U (ja) * | 1978-11-09 | 1980-05-15 | ||
JPH0416656B2 (ja) * | 1979-04-16 | 1992-03-24 | Garlock Inc | |
JPS55161926U (ja) * | 1979-05-09 | 1980-11-20 | ||
JPS6026328U (ja) * | 1983-07-30 | 1985-02-22 | トヨタ自動車株式会社 | スライディングシャフト継手のシ−ル構造 |
JPS6389432U (ja) * | 1986-12-01 | 1988-06-10 | ||
JP2003054421A (ja) * | 2001-08-08 | 2003-02-26 | Nsk Ltd | 車両ステアリング用伸縮軸 |
Also Published As
Publication number | Publication date |
---|---|
EP1705394A1 (en) | 2006-09-27 |
CN1902409A (zh) | 2007-01-24 |
US20090270188A1 (en) | 2009-10-29 |
JP2005195120A (ja) | 2005-07-21 |
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