GB2469524A - Interference connection for vehicle steering column - Google Patents

Interference connection for vehicle steering column Download PDF

Info

Publication number
GB2469524A
GB2469524A GB0906683A GB0906683A GB2469524A GB 2469524 A GB2469524 A GB 2469524A GB 0906683 A GB0906683 A GB 0906683A GB 0906683 A GB0906683 A GB 0906683A GB 2469524 A GB2469524 A GB 2469524A
Authority
GB
United Kingdom
Prior art keywords
steering column
vehicle steering
yoke
tube
interference fit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB0906683A
Other versions
GB0906683D0 (en
Inventor
James Peter Bentley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NSK Steering Systems Europe Ltd
Original Assignee
NSK Steering Systems Europe Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NSK Steering Systems Europe Ltd filed Critical NSK Steering Systems Europe Ltd
Priority to GB0906683A priority Critical patent/GB2469524A/en
Publication of GB0906683D0 publication Critical patent/GB0906683D0/en
Publication of GB2469524A publication Critical patent/GB2469524A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for 
    • B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
    • B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • F16D1/08—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
    • F16D1/0852—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping between the mating surfaces of the hub and shaft
    • F16D1/0858—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping between the mating surfaces of the hub and shaft due to the elasticity of the hub (including shrink fits)
    • 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
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
    • F16D3/38—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another
    • F16D3/382—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another constructional details of other than the intermediate member
    • F16D3/387—Fork construction; Mounting of fork on shaft; Adapting shaft for mounting of fork
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B17/00—Connecting constructional elements or machine parts by a part of or on one member entering a hole in the other and involving plastic deformation
    • F16B17/004—Connecting constructional elements or machine parts by a part of or on one member entering a hole in the other and involving plastic deformation of rods or tubes mutually
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B4/00—Shrinkage connections, e.g. assembled with the parts at different temperature; Force fits; Non-releasable friction-grip fastenings
    • F16B4/006—Shrinkage connections, e.g. assembled with the parts being at different temperature
    • 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
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
    • F16D2001/102—Quick-acting couplings in which the parts are connected by simply bringing them together axially the torque is transmitted via polygon shaped connections

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Steering Controls (AREA)

Abstract

A vehicle steering column comprising a first part 1 and a second part 2 there being provided an interference fit coupling a portion of the first part within the second part. Prior to assembly; the second part is heated to a higher temperature than that of the first part so as to expand the second part to allow a portion of the first part to be inserted within the second part. The second part is subsequently allowed to cool thereby shrinking; producing the required interference fit with the first part. The first part may be inherently capable of transmitting torque. The first part may be non-circular having a substantially triangular cross sectional profile. The second part may be provided with a multifaceted bore configured to accept the profile of the first part. The first part may be a steering column tube and the second part may be a yoke.

Description

METHOD OF SECURING PARTS OF A VEHICLE STEERING COLUMN
This invention relates to a method of securing parts of a vehicle steering column.
One known method of assembling a steering column tube and a component such as a yoke, for example, is by swaging from round tube so as to provide a torque drive connection at one or both ends of the tube. So, in the case of a pressed yoke, the yoke is fitted to one of the drive connections and the tube is mechanically deformed to generate a robust connection.
According to one aspect of the present invention, there is provided a method of securing a vehicle steering column first part within a second part of the steering column as an interference fit, comprising heating the second part to a temperature higher than that of the first part so as to expand the second part to allow a portion of the first part to be inserted within the second part and then allowing the second part to cool, thereby to shrink and produce the required interference fit with the first part.
The first part may be a vehicle steering column tube. The second part may be a yoke.
The first part (tube) may be so designed as to be inherently capable of transmitting torque. To achieve this, the tube may be non-circular and may have, for example, a substantially triangular profile.
The second part (yoke) may be provided with a multi-faceted internal bore to accept the profile of the tube.
Once the first part has been secured within the second part by shrink fitting, additional mechanical deformation of the first part and/or the second part may be performed to provide a secondary means to ensure a secure connection between the two parts.
According to another aspect of the present invention, there is provided a vehicle steering column first part with a portion thereof within a second part of the steering column as an interference fit, the second part having been shrunk-fit on the first part.
For a better understanding of the invention and to show how the same may be carried into effect reference will now be made, by way of example, to the accompanying drawing, in which Fig.l shows part of a vehicle steering column tube and a corresponding yoke prior to assembly, and Fig. 2 shows the steering column tube fitted within the yoke.
The first part is an extruded tube 1 of substantially triangular section, albeit with flattened apices whilst a yoke 2 has a multi-faceted internal bore to receive the profile of the tube 1.
The extruded tube 1 is inherently capable of transmitting torque, whilst the yoke 2 has a corresponding torque transmitting connection profile. The connection profiles of both tube and yoke are toleranced to enable the desired degree of interference.
Assembly of the tube/yoke connection is facilitated by heating the yoke 2, thereby expanding the profile before the tube 1 is fitted. After fitting the hot yoke on the tube, the assembly is allowed to cool and the yoke 2 will shrink onto the tube 1 to generate a robust high-strength connection.
The distance A shown in Fig.2 shows the length of engagement of the tube 1 within the yoke 2.
Additional mechanical deformations of the tube and/or yoke may be employed to provide a secondary means of ensuring a secure connection.
As well as providing a drive yoke for slide shafts or tubes of a steering column, it is envisaged that the invention will also be applicable where it is necessary for an inner steering column shaft to pass through the yoke connection.
It also is envisaged that the invention will facilitate automatic manufacturing of vehicle steering columns slider sub-assemblies.

Claims (9)

  1. CLAIMS: 1. A method of securing a vehicle steering column first part within a second part of the steering column as an interference fit, comprising heating the second part to a temperature higher than that of the first part so as to expand the second part to allow a portion of the first part to be inserted within the second part and then allowing the second part to cool, thereby to shrink and produce the required interference fit with the first part.
  2. 2. A method according to claim 1, wherein the first part is inherently capable of transmitting torque.
  3. 3. A method according to claim 2, wherein the first part is non-circular.
  4. 4. A method according to claim 3, wherein the first part has a substantially triangular profile.
  5. 5. A method according to claim 2, 3 or 4, wherein the second part may be provided with a multi-faceted internal bore to accept the profile of the first part.
  6. 6. A method according to any one of the preceding claims, wherein, after the first part has been secured within the second part by shrink fitting, additional mechanical deformation of the first part and/or the second part is performed.
  7. 7. A method of securing a vehicle steering column first part within a second part, substantially as herein before described, with reference to the accompanying drawing.
  8. 8. A vehicle steering column first part with a portion therefor within a second part of the steering column as an interference bit, the second part having been shrunk-fit on the first part.
  9. 9. Vehicle steering column first and second parts according to claim 8, wherein the first part is a steering column tube and the second part is a yoke.
GB0906683A 2009-04-18 2009-04-18 Interference connection for vehicle steering column Withdrawn GB2469524A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0906683A GB2469524A (en) 2009-04-18 2009-04-18 Interference connection for vehicle steering column

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0906683A GB2469524A (en) 2009-04-18 2009-04-18 Interference connection for vehicle steering column

Publications (2)

Publication Number Publication Date
GB0906683D0 GB0906683D0 (en) 2009-06-03
GB2469524A true GB2469524A (en) 2010-10-20

Family

ID=40774595

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0906683A Withdrawn GB2469524A (en) 2009-04-18 2009-04-18 Interference connection for vehicle steering column

Country Status (1)

Country Link
GB (1) GB2469524A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11525482B2 (en) * 2018-04-27 2022-12-13 Bayerische Motoren Werke Aktiengesellschaft Method for producing a shaft-hub connection, and motor vehicle shaft having such a connection

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6944071B2 (en) * 2018-06-21 2021-10-06 マグナ エクステリアーズ インコーポレイテッド Active aerodynamic application device for torque driven links

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3801124A (en) * 1972-10-13 1974-04-02 Dayton Walther Corp Knuckle assembly
DE19619129C1 (en) * 1996-05-11 1997-07-17 Bayerische Motoren Werke Ag Tightly connected fluid conduit parts, particularly for motor vehicles
JP2000230518A (en) * 1999-02-09 2000-08-22 Kuroishi Tekko Kk Connecting structure of universal joint and shaft body
US20060005385A1 (en) * 2004-07-06 2006-01-12 Daimlerchrysler Ag Method and assembly system for manufacturing an assembled camshaft
EP1741958A1 (en) * 2005-01-20 2007-01-10 OTICS Corporation Rotary assembly and method of manufacturing the same
DE102005061920A1 (en) * 2005-07-18 2007-02-08 Mahle International Gmbh Method and device for shrink-fitting cam to shaft, comprise heating of inner surface at opening and of surrounding surface of cam
EP1759955A2 (en) * 2005-09-03 2007-03-07 NSK Steering Systems Europe Limited Bush, particularly for vehicle steering column

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3801124A (en) * 1972-10-13 1974-04-02 Dayton Walther Corp Knuckle assembly
DE19619129C1 (en) * 1996-05-11 1997-07-17 Bayerische Motoren Werke Ag Tightly connected fluid conduit parts, particularly for motor vehicles
JP2000230518A (en) * 1999-02-09 2000-08-22 Kuroishi Tekko Kk Connecting structure of universal joint and shaft body
US20060005385A1 (en) * 2004-07-06 2006-01-12 Daimlerchrysler Ag Method and assembly system for manufacturing an assembled camshaft
EP1741958A1 (en) * 2005-01-20 2007-01-10 OTICS Corporation Rotary assembly and method of manufacturing the same
DE102005061920A1 (en) * 2005-07-18 2007-02-08 Mahle International Gmbh Method and device for shrink-fitting cam to shaft, comprise heating of inner surface at opening and of surrounding surface of cam
EP1759955A2 (en) * 2005-09-03 2007-03-07 NSK Steering Systems Europe Limited Bush, particularly for vehicle steering column

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11525482B2 (en) * 2018-04-27 2022-12-13 Bayerische Motoren Werke Aktiengesellschaft Method for producing a shaft-hub connection, and motor vehicle shaft having such a connection

Also Published As

Publication number Publication date
GB0906683D0 (en) 2009-06-03

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Legal Events

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)