WO2018160788A1 - Butée de déplacement télescopique de colonne de direction - Google Patents

Butée de déplacement télescopique de colonne de direction Download PDF

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Publication number
WO2018160788A1
WO2018160788A1 PCT/US2018/020366 US2018020366W WO2018160788A1 WO 2018160788 A1 WO2018160788 A1 WO 2018160788A1 US 2018020366 W US2018020366 W US 2018020366W WO 2018160788 A1 WO2018160788 A1 WO 2018160788A1
Authority
WO
WIPO (PCT)
Prior art keywords
stopper
column
column tube
steering
steering column
Prior art date
Application number
PCT/US2018/020366
Other languages
English (en)
Inventor
David Ray HARTMAN
Victor Corona MARTINEZ
Logananth CHINNIAH
Original Assignee
Nsk Americas, Inc.
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 Americas, Inc. filed Critical Nsk Americas, Inc.
Publication of WO2018160788A1 publication Critical patent/WO2018160788A1/fr

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Classifications

    • 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
    • B62D1/184—Mechanisms for locking columns at selected positions

Definitions

  • the present teachings relate to an adjustable steering column assembly. More particularly, the present teachings are directed to a stopper subassembly for a telescoping steering column assembly.
  • steering column assemblies that include the ability to adjust the assemblies, such as by performing tilt and/or telescoping functions, such assemblies being known also as “rake and reach steering column assemblies.”
  • steering column assemblies incorporate both tilt and telescopic functions.
  • a manual user operating device e.g., a lever
  • motors to perform one or both of the functions.
  • one lever or motor may be operated to actuate the steering column assembly generally in an upward or downward vertical direction to adjust the height of a steering wheel relative to an operator of the vehicle, relative to the vehicle floor and/or vehicle ceiling, or both and thus perform the tilt function.
  • Another lever or motor may be operated to actuate the steering column assembly to adjust the fore/aft position of the steering wheel relative to the vehicle operator.
  • the latter typically achieves the adjustment by way of translation of a telescopic tubing arrangement by which at least one tube associated with the steering column assembly translates relative to a column housing.
  • Industry is constantly seeking to improve these adjustment functions, such as by making the adjustment easier and/or smoother for the vehicle occupant.
  • a telescoping stopper assembly is located on or associated with a breakaway mechanism and/or an energy absorption mechanism triggered during a secondary impact of a collision, such as when a driver contacts the steering wheel during an accident. Forces from abusing the telescoping mechanism when the steering column is unlocked may therefore affect the breakaway and/or energy absorption mechanisms. As these breakaway or energy absorption mechanisms are necessary for the safety of the driver, it is important that these mechanisms are not compromised or damaged during ordinary adjustment of the steering column assembly.
  • an improved steering column assembly that provides adjustment (e.g., telescopic adjustment tilt adjustment, or both); providing means of energy absorption, particularly during a crash or secondary impact; limiting the forward translation of the telescoping members when the steering column assembly is in an adjustment mode (e.g., in an unlocked position); the like; or a combination thereof.
  • adjustment e.g., telescopic adjustment tilt adjustment, or both
  • providing means of energy absorption particularly during a crash or secondary impact
  • the present teachings make use of a simple, yet elegant, construction approach by which relatively few components can be employed for achieving a stop during telescoping, especially as the telescoping member is pushed inwardly or forward in the general direction of the front of the vehicle.
  • the present teachings meet the needs addressed above.
  • the present teachings contemplate a telescope stopper that decouples the telescope stop from the breakaway and/or energy absorption mechanism of the steering column assembly so that the telescope abuse strength of the column can be tuned independently of the energy absorption breakaway mechanism.
  • the present teachings relate to a collapsing steering column assembly.
  • the assembly includes a steering shaft support structure.
  • a column housing which may have one or more of the features as described in the present teachings.
  • It may include a column tube which may have one or more of the features as described in the present teachings and being adapted for telescopic adjustment within the column housing.
  • a steering shaft which may have one or more of the features as described in the present teachings (which may support a steering wheel that is attached to it in part and may optionally be a part of the assembly), may be supported for rotation (e.g., by one or more bearings), at least in part by the steering shaft support structure and having a longitudinal axis.
  • a bracket which may have one or more features as described in the present teachings, may be employed for at least partially carrying the steering shaft support structure and attaching the assembly within a vehicle (e.g., to a cross-vehicle structure).
  • the bracket may include a portion that provides a guide structure along one or more downwardly projecting walls for allowing tilt adjustment.
  • At least one securing member which may have one or more of the features as described in the present teachings (e.g., a tilt bolt, in the case of a tilt adjustable steering column assembly), may be employed for fixing the position of the steering shaft support structure relative to the bracket.
  • the at least one securing member may be operatively connected to an actuator or other user operating device (such as a lever or electromagnetic actuator).
  • the at least one securing member may be operated to apply a force state (e.g., a clamping force or to create an interference fit) to help secure the steering shaft support structure in a fixed position.
  • the assembly may allow at least a portion of the steering shaft support structure to translate forward (e.g., in a collapse stroke) upon the application of a threshold load.
  • the threshold load may be a load of about 0.5 kN or more, or about 2 kN or more.
  • the threshold load may be a load of about 10 kN or less, or about 5 kN or less.
  • the threshold load may be based on a customer's specified load requirements, which is typically between about 2 kN and about 5 kN.
  • a bend plate, a wire, or the like may be in operative engagement with the at least one securing member and with the steering shaft support structure so that energy is absorbed by way of plastic deformation of the energy absorption device.
  • the steering shaft support structure e.g., the column tube to which the energy absorption device is attached
  • the steering shaft support structure may travel forward and may cause the energy absorption device to deform (e.g., plastically) so that energy from the impact is absorbed by virtue of the deformation.
  • the present teachings make use of a subassembly that provides for a stop in an adjustable steering column assembly to thereby limit translation of the column tube within the column housing.
  • the device may be adapted for use within an internally collapsing steering column assembly.
  • the present teachings contemplate any of the following elements, in any combination.
  • the present teachings contemplate a device for an adjustable steering column assembly including a telescoping stopper.
  • the telescoping stopper may have a securing portion adapted to couple the stopper to an elongated member within the steering column assembly.
  • the stopper may include an orthogonal portion having a surface adapted to contact a column housing of the steering column assembly when in an unlocked position and/or an opposing face adapted to contact a portion of a column tube of the steering column assembly during telescoping adjustment.
  • the stopper may include a body portion joining the securing portion and the orthogonal portion.
  • the stopper may be adapted to limit forward travel of the column tube when the steering column assembly is in an unlocked position.
  • the stopper may be adapted to rotate (e.g., due to being positively coupled with the elongated member of the steering column assembly) and may position the orthogonal portion toward the column tube so that the orthogonal portion is in the way of the column tube when the steering column assembly is in the unlocked position.
  • the stopper may be adapted to be moved away from the column tube or clear of the column tube when the steering column assembly is in a locked position.
  • the face of the orthogonal portion of the stopper may be angled or curved.
  • the angle may be less than the slip angle between the stopper and the portion of the column tube (e.g., the contact member) that the face of the orthogonal portion is adapted to contact.
  • the body portion of the stopper may have a width that is less than the width of the orthogonal portion.
  • the securing portion of the stopper may be adapted to receive the elongated member (e.g., a tilt bolt) via friction fit.
  • the stopper may be a molded polymeric part, a metal part, an overmolded part, or a combination thereof.
  • the device may be adapted for an internally collapsing steering column assembly.
  • the present teachings also include a steering column assembly that includes the telescoping stopper described herein.
  • the steering column assembly may include a column tube, a steering shaft supported for rotation at least in part by the column tube; a bracket for at least partially carrying the column tube; a manually operated steering wheel adjustment subassembly including a lever for manually actuating the steering wheel adjustment subassembly, wherein the lever controls rotation of an elongated member situated in a generally transverse direction to the column tube.
  • the telescoping stopper may be secured to the elongated member of the steering wheel adjustment subassembly that is actuated upon movement of the lever.
  • the telescoping stopper may be moved in the way of the column tube when the steering column assembly is unlocked to limit inward displacement of the column tube.
  • the telescoping stopper may be moved clear of the column tube when the steering column assembly is in a locked position.
  • the steering column assembly may include a structure for providing energy absorption.
  • the energy absorption structure may be an energy absorption plate that is secured to the column tube.
  • the energy absorption plate may have a first end and a second end; an arcuate segment; a first generally flat segment between the first end and the arcuate segment; and a second generally flat segment between the second end and the arcuate segment
  • the first generally fiat segment may be situated generally parallel with the second generally flat segment.
  • the first generally flat segment may face away from the column tube of the steering column assembly.
  • the second generally flat segment may be adapted to be secured to the column tube.
  • the second generally flat segment may be employed for absorbing energy by way of plastic deformation of the energy absorption plate during a forward translation of a column tube during a secondary impact.
  • the first generally flat segment may include one or more features for engaging with a fastener to lock the column tube in position in the steering column assembly.
  • the column tube may include a contact member extending from an outer surface of the column tube.
  • the contact member may contact the stopper during a telescope-in adjustment.
  • the stopper may limit the column tube from telescoping further in a forward direction.
  • the contact member may have an angled contact surface so that the stopper can be moved free with no or minimal interference between the stopper and the contact member.
  • a portion of the stopper or a portion of the column tube may be adapted to break away as a result of contact between the stopper and a portion of the column tube (e.g., the contact member) that exceeds a threshold load.
  • the stopper may contact the column housing and/or the column tube, and the column may arrest rotation of the lever in the unlock direction.
  • the present teachings also contemplate a method of limiting forward travel of a column tube during telescope-in adjustment using the stopper as described throughout the specification.
  • FIG. 1 is a perspective view of an illustrative assembly in accordance with the present teachings.
  • Fig. 2 illustrates a view of a tilt and telescope adjustment assembly in accordance with the present teachings.
  • FIG. 3 is a partial view of an illustrative steering column assembly in accordance with the present teachings, where the assembly is in a locked position.
  • FIG. 4 is a partial view of an illustrative steering column assembly in accordance with the present teachings, where the assembly is in an unlocked position.
  • FIG. 5 is a partial view of an illustrative steering column assembly in accordance with the present teachings, where the assembly is in an unlocked position.
  • Fig. 6 is side view of the illustrative steering column assembly of Fig. 5.
  • teachings herein are directed toward a unique combination of components for assembling a column tube in an adjustable steering column assembly, and more particularly for providing elements such as a stopper subassembly to provide a stop for a column tube during telescoping within the steering column assembly.
  • a column tube e.g., a steering shaft, one or more brackets (e.g., a bracket structure for attachment of the steering column assembly in the vehicle, a tilt bracket, an interface bracket, or any combination thereof), a column housing, and a steering wheel adjustment subassembly (e.g., a manually or motor operated steering wheel adjustment subassembly).
  • brackets e.g., a bracket structure for attachment of the steering column assembly in the vehicle, a tilt bracket, an interface bracket, or any combination thereof
  • a column housing e.g., a steering wheel adjustment subassembly
  • the column housing may be operatively connected with a bracket structure.
  • the column housing operatively supports the steering shaft that is driven by a steering wheel.
  • the column housing may itself be a tube.
  • the column housing may provide a clamping feature, where it clamps around another portion of the steering column assembly (e.g., a column tube) when the assembly is not in an adjustment mode (e.g., tilt adjustment, telescoping adjustment, or both).
  • the column housing may receive another tube that supports the steering shaft.
  • One such tube referred to herein as the column tube, typically will have a hollow cavity along at least a portion of (if not the entirety of) the length of the tube and may be sized and configured to receive and support a rotatable shaft, namely a steering shaft and possibly one or more bearings.
  • Both the steering shaft and any tube (be it a column housing, a column tube, or both) will have a longitudinal axis.
  • each the shaft and any tube When installed in a vehicle, the longitudinal axis of each the shaft and any tube may be generally coaxially aligned, aligned generally parallel with a longitudinal axis of a vehicle (e.g., within about 10° or even about 5°), or each.
  • the longitudinal axis of each of the shaft and any tube may form an angle with the longitudinal axis of a vehicle of about 45° or less, about 30° or less, or about 25° or less.
  • the steering shaft, the column housing and any column tube typically will be made of a suitable metal, such as steel or aluminum.
  • Metal components herein may also be made of other metals, such as magnesium. Such metals may be alloys. However, generally pure metals are also possible.
  • the steering wheel adjustment subassembly may include a lever (or any other user operating device) adapted for actuating (e.g., manually actuating) the subassembly, and at least one engagement member that is brought into and out of engagement with the column tube for selectively locking the steering shaft into a position desired by a user.
  • the energy absorption devices may be a suitable device adapted to deform elastically and or elastically and plastically. In the course of deforming, the energy absorption devices are thus adapted to absorb energy by way of the deformation.
  • the energy absorption device may be operatively connected or located between or among two or more components. It may be configured so that it limits relative movement as between or among two or more components.
  • the energy absorption devices may be wires, plates or the like. They may have a constant profile or a varying profile along their length. They may be employed to have one or more fixedly constrained portions (e.g., an end). They may have one or more free ends.
  • the assembly herein may further employ an energy absorption structure of the type described in Published U.S. Application 2013/0233117, the entirety of which is incorporated by reference herein for all purposes.
  • the assembly herein may include at least one plastically deformable energy absorption device (e.g., a bend plate, a wire, or some other structure adapted to be earned at least partially by the column housing), wherein the energy absorption device, when employed, absorbs energy by plastic deformation during the secondary impact after the steering shaft support structure (e.g., column tube and steering shaft) starts to translate along the column housing.
  • the steering shaft support structure e.g., column tube and steering shaft
  • Any plastically deformable energy absorption device may thus limit the extent of longitudinal travel of the column tube, steering shaft, or both.
  • Brackets may include a portion for mounting the steering column assembly within a vehicle (e.g., it can be secured to a vehicle structure, such as a cross vehicle beam, instrument panel, or otherwise).
  • the bracket may have a portion that at least partially adjoins the steering shaft support structure (e.g., the column tube, the column housing or both).
  • a bracket may include one or a plurality of downward depending (downwardly oriented) walls (e.g., tilt plates) that define a tilt portion of the bracket
  • One or more of the downward depending walls (e.g., tilt plates) may be adapted to provide a structure that has an elongated slot that provides guidance for the tilt function (e.g., it provides a guide path for a securing member such as a tilt bolt as it travels during adjustment; it may thus limit upward and downward travel).
  • the bracket may be an integrated structure so that the tilt portion and the mounting portion are a single structure (e.g., a casting, a stamping, or a combination thereof).
  • the bracket may be made of separate structures that are assembled together to define the mounting and tilt portions in a single structure.
  • the mounting portion may be omitted and/or may be located elsewhere within the steering column assembly.
  • the tilt portion may be omitted.
  • a mounting bracket may be employed separately from a structure defining a tilt portion. Examples of brackets that may be employed, in addition to the examples described herein, include those of United States Published Application No. 20100300238 (the entirety of which is incorporated by reference for all purposes; see, e.g., description of bracket 20); United States Patent No. 6,467,807, the entirety of which is incorporated by reference for all purposes (see, e.g., description of brackets 6 and 7 and associated structure).
  • Brackets may be employed and adapted for receiving at least a portion of a steering shaft support structure (e.g., at least a portion of the column tube, the column housing, or both), and or for mounting the steering column assembly within the automotive vehicle.
  • a tilt bracket of the present teachings may include an upper portion that is adapted to be secured to a vehicle structure, such as a cross vehicle beam, instrument panel, or otherwise.
  • the bracket e.g., tilt bracket
  • the bracket may have a pair of generally opposing downwardly oriented or projecting walls (e.g., tilt plates).
  • the bracket may have a structure that at least partially flanks at least a portion of the steering shaft support structure (e.g., the column tube).
  • the bracket e.g., tilt bracket
  • the bracket may include a pair of opposing side walls, and an upper wall that is configured to attach to the vehicle (e.g., to a cross vehicle beam, an instrument panel, or other suitable structure).
  • the side walls may project outward relative to the upper wall (e.g., they may be generally orthogonally or obliquely disposed relative to the upper wall).
  • the bracket e.g., tilt bracket
  • the bracket may have a single downwardly projecting or oriented wall.
  • the bracket e.g., tilt bracket
  • the bracket may be disposed laterally above and outward relative to an opposing portion of the column housing.
  • Bracket structures may be a cast structure (e.g., structure made by casting a mass), a forged structure (e.g., a structure made by forging a metal mass), a machined structure, a consolidated structure (e.g., a structure made by a step of sintering and or pressing a powder metal mass), or any combination thereof.
  • a cast structure e.g., structure made by casting a mass
  • a forged structure e.g., a structure made by forging a metal mass
  • a machined structure e.g., a structure made by a step of sintering and or pressing a powder metal mass
  • consolidated structure e.g., a structure made by a step of sintering and or pressing a powder metal mass
  • the bracket structure thus may be configured for integrating functions of mounting within a vehicle and accommodating a tilt function of the assembly relative to a vehicle operator. For instance, the functions may be integrated into a single bracket, or spread among separate bracket
  • the steering column assembly of the present teachings may include one or more steering wheel adjustment subassemblies.
  • an adjustment subassembly may provide a user with the ability to adjust the steering wheel (and thereby the steering shaft) in a fore and/or aft direction (e.g., telescopic adjustment).
  • An adjustment subassembly may provide a user with the ability to adjust the position by raising and lowering the steering wheel, and thereby the steering shaft (e.g., tilt adjustment), relative to the user.
  • the steering column assembly may provide the ability to perform either or both of these functions (e.g., telescopic adjustment and/or tilt adjustment). These functions may be accomplished by one adjustment subassembly or more than one adjustment subassembly (e.g., one adjustment subassembly for providing telescopic adjustment and one adjustment subassembly for providing tilt adjustment).
  • An adjustable telescoping subassembly may be employed for selectively driving the steering shaft in a fore and/or aft direction generally along the longitudinal axis of the steering shaft.
  • the adjustment of the telescoping subassembly may be controlled by a suitable user operating device (e.g., a lever, an electromechanical actuator, or otherwise).
  • a lever or other user operating device may be adapted to control a force applied to maintain the collapsing portion in a user selected position.
  • a lever or other user operating device may be in operative engagement with one, two, or more clamping portions or other suitable mechanism to reieasabiy (and possibly adjustably as well) secure two or more components of the collapsing portion together.
  • Clamping or other securing may be realized by a suitable securing member (e.g., an elongated force applying member), such as an elongated member, bolt (e.g., a tilt bolt), pin, rod, strap, bar, band, wedge, or other suitable member.
  • the securing member may be adapted, upon actuation of the user operating device to cause generally opposing portions (e.g., clamping portions) to separate or come closer together such as, respectively, for releasing the components relative to each other or for securing the components relative to each other.
  • generally opposing portions e.g., clamping portions
  • the teachings may include employing at least one telescoping motor subassembly adapted for selectively driving the steering shaft (by way of a rod or other drive member) in a fore or aft direction generally along the longitudinal axis of the steering shaft.
  • the telescoping motor subassembly may include an electric motor that has a motor shaft that operatively drives a drive member (e.g., a rod that is threaded or has gear teeth over at least a portion of its length).
  • the shaft may drive the drive member by use of one or more gears.
  • the motor shaft may have a longitudinal axis that is oriented generally parallel with the longitudinal axis of the steering shaft and/or inner tube.
  • the motor shaft may have a longitudinal axis that is oriented generally transverse with the longitudinal axis of the steering shaft and/or inner tube.
  • the telescoping motor subassembly may be such that it includes a housing within which the motor is at least partially located.
  • the housing may include one or more flat surfaces that are adapted to slidingly bear against another surface (e.g., a bracket, a flange of the column housing, or some other mounting structure), which other surface may be part of, or be operably connected with the column housing.
  • Such flat surfaces may be a part of a mounting structure for securing the telescoping motor subassembly to the overall assembly.
  • the teachings may further contemplate employing at least one tilt subassembly that is adapted for selectively raising or lowering the steering shaft.
  • the optional tilt subassembly may be manually actuated, motorized, or both. It may be attached (e.g., at a first mount location along its length) to the bracket structure. For example, as discussed, it may be incorporated within a housing structure (e.g., a column housing) defined in the bracket structure. It may be attached at a second location along its length (e.g., at a second mount location that is distal from the upper surface of the bracket structure as compared with the first mount location).
  • a column housing may be pivotally coupled with the bracket structure (e.g., at a forward end of both the bracket structure and the column housing) and is adapted to permit steering shaft adjustment (e.g., tilt adjustment, telescopic adjustment or both, such as by way of the tilt subassembly, telescoping subassembly, or both).
  • the column housing may be a cast structure (e.g., a structure made by casting a mass), a forged structure (e.g., a structure made by forging a metal mass), a machined structure, a consolidated structure (e.g., a structure made by a step of sintering and or pressing a powder metal mass) or any combination thereof.
  • the column housing may include one or more ribs.
  • the column housing may be generally elongated. It may have a substantially cylindrical configuration.
  • the column housing may have a portion that is capable of receiving a substantially cylindrical part, such as a column tube.
  • the column housing may have a lower portion that has laterally projecting flanges over at least a portion of the column housing length.
  • the flanges may project from both sides of the column housing.
  • the flanges may project laterally outward to a location that extends beyond the outermost reach of the wall from which it projects.
  • the column housing may have one or more openings, e.g., slots or a gap, in a lower portion for exposing the column tube so that the column tube can be connected with and translate longitudinally (e.g., associated with the telescoping subassembly).
  • openings e.g., slots or a gap
  • the column housing may be in clamping relation with the column tube so as to permit steering shaft adjustment (e.g., telescoping, tilt, or both).
  • the column housing may be undamped during adjustment of the steering shaft and/or column tube.
  • the column tube may be clamped by the column housing when the steering shaft and/or column tube are in the desired position.
  • the column housing, a bracket structure, and or the column tube may include a structure adapted for clamping the column tube into position (e.g., via a lever or other user operating device).
  • the column housing may at least partially surround the column tube in a relation that may be adapted for clamping or unclamping with the column tube (e.g., when the lever or other user operating device is in a predetermined position) so as to permit steering shaft tilt adjustment, telescoping adjustment, or both.
  • the column housing may include a suitable structure for releasably clamping or otherwise engaging the column tube into position.
  • the column housing may include an elongated longitudinally oriented opening (e.g., an axial slot) that defines an inner surface structure that may include opposing inner surfaces (e.g., wall surfaces) that can be urged toward the column tube for clamping the column tube into position (e.g., by using the lever to apply a clamping force, such as by way of a tilt bracket).
  • an elongated longitudinally oriented opening e.g., an axial slot
  • an inner surface structure may include opposing inner surfaces (e.g., wall surfaces) that can be urged toward the column tube for clamping the column tube into position (e.g., by using the lever to apply a clamping force, such as by way of a tilt bracket).
  • the position of the column tube relative to the column housing may be fixed by way of a securing member that is located in a secure engagement position and applies a force (e.g., a generally transverse force relative to the longitudinal axes of the column tube and the column housing) to at least one of the column housing or column tube for causing a secure engagement of the column tube and the column housing (e.g., a clamped engagement, an interference, interlock, detent, or other mechanical engagement).
  • the securing members may cause a portion of the column housing (e.g., inner walls of the column housing) to clamp onto the outer diameter column tube, thereby securing the column tube in a desired position (e.g., a desired telescope position, tilt position, or both).
  • Securing members may include an elongated force applying member, such as a bolt (e.g., a tilt bolt), rod, strap, bar, band, wedge, or other suitable member.
  • the securing member may be adapted, upon actuation of the lever or other user operating device to cause generally opposing portions (e.g., clamping portions) to separate or come closer together, respectively, such as for releasing components relative to each other or for securing the components relative to each other.
  • the width of the axial slot of the column housing may change (e.g., a wider slot when unlocked to permit adjustment; a narrower slot when locked to hold the column tube in proper position).
  • the assembly may include a steering wheel adjustment subassembly having a lever (as discussed, or some other user operating device) adapted for actuating (e.g., manually actuating) the subassembly via tilt, telescoping, or both.
  • At least one engagement member e.g., a pin
  • the steering shaft into a position (e.g., telescoped position) desired by a user (e.g., via the lever).
  • One or more cams may be brought into and out of engagement (e.g., via interference) with a wall of a tilt plate defining a vertical slot for adjustment of the tilt position desired by a user (e.g., via the lever).
  • a mounting structure may detachably mount the steering wheel adjustment subassembly relative to the bracket (e.g., tilt bracket).
  • the column housing may remain in a generally fixed position relative to a forward pivot mounting location (e.g., any forward translation is limited to a relatively small amount (e.g., about 20 mm or 10 mm)).
  • the assembly may include a tilt bracket having two or more tilt plates extending downwardly on opposing sides of the column tube, column housing, or both.
  • the tilt plates may include one or more generally vertical slots.
  • a tilt bolt or other elongated fastener may extend between the two tilt plates, and the tilt bolt may be received within the vertical slots.
  • the height adjustment of the assembly may be possible by the tilt bolt moving upwardly or downwardly in the slots when the user operating device, such as a lever, is in an unlocked position.
  • the assembly may be held at the desired angle or height when the user operating device, such as a lever, is moved into the locked positon.
  • the user operating device such as a lever, may operate a cam locking system.
  • a cam may be located within either or both of the vertical slots of the opposing tilt plates in the tilt adjustment assembly.
  • the cam may be generally oblong or tear shaped, for example.
  • the cam may engage (e.g., via cam teeth) with a wall defining the slot of the tilt plate when the lever or other user operating device is in a locked position.
  • a spring may be keyed to the tilt bolt and attached to the cam so that when the lever is locked, the spring pushes or rotates the cam so the teeth contact the tilt plate (e.g., at a wall defining the slot).
  • the cam when the lever is in an unlocked position, the cam may disengage from the wall defining the slot of the tilt plate (and the teeth may be clear of the surface), and the cam and tilt bolt may be permitted to move freely upwardly or downwardly within the slot to adjust the height and angle of the steering wheel for the driver or user.
  • the telescope adjustment assembly may serve to absorb energy during an impact, such as a secondary impact.
  • the telescope adjustment assembly may include an energy absorption plate.
  • the energy absorption plate may function to secure the position of the column tube, steering shaft, steering wheel, or a combination thereof in a desired fore or aft direction.
  • the energy absorption plate may serve to absorb energy, particularly during the forward telescoping of the column tube when a load exerted on the steering wheel exceeds a threshold load (e.g., during a secondary impact).
  • the energy absorption plate may include two or more generally planar sections that are generally parallel to each other and joined at an arcuate portion (e.g., an arcuate portion pointing generally forward).
  • One of the generally planar sections may be fixedly attached to the column tube (e.g., via one or more fasteners such as screws, rivets, or pins; via one or more adhesives; via one or more methods such as soldering or welding; or a combination thereof).
  • the other generally planar section may be positioned away from the column tube.
  • This generally planar section may provide an area for engaging a fastener to lock the column tube in place telescopically.
  • the generally planar section may include a toothed portion (e.g., a slot defined by a plurality of teeth).
  • the generally planar section may include a series of openings adapted for receiving a fastener, where the opening chosen to receive the fastener impacts the position of the steering shaft telescopically (i.e., a pin in a more forward opening may secure the column tube in a forward direction, whereas a pin toward the rear opening in the generally planar section may secure the column tube closer to the driver or user).
  • the generally planar section facing away from the column tube may engage with a spring-biased fastener, such as a pin, which may be actuated by the lever of the steering column assembly.
  • the fastener may be inserted through an opening in the column housing and tilt plate and may be positioned generally perpendicularly to the column tube.
  • the spring-biased fastener When the spring-biased fastener is pushed or when pressure is applied (i.e., the spring is compressed), the tip of the fastener is caused to engage with the generally planar section.
  • the generally planar section includes a slot defined by a plurality of teeth, these teeth may engage with a toothed end of a pin to provide locking engagement to prevent further movement of the column tube in a fore or aft direction.
  • the pressure or compression of the spring-biased fastener may be provided by a portion of the lever or other user operating device.
  • the lever or other user operating device may also allow the user or driver to control the telescoping adjustment of the steering column assembly in a fore and aft direction.
  • the lever may include a ramp portion, or an angled segment facing the column tube and/or column housing. When the lever is in a locked position, the ramp portion may contact the head of the spring-biased fastener, such as a pin, thereby pushing the pin toward the column tube.
  • the spring- biased fastener When the lever is in an unlocked position, the spring- biased fastener may be released, and as the spring returns to an uncompressed state, the tip or end of the fastener is removed from engagement with the generally planar section (e.g., the toothed portion), and a user is free to pull or push the steering wheel to adjust the position telescopically.
  • the pin may be pushed and pulled by the lever and/or by a cam associated with the lever so that the pin is not bound in place by pressing on the column tube.
  • the energy absorption plate may provide for energy absorption in the event of an impact occasioning a collapse stroke where a portion of the steering column assembly (e.g., the column tube, steering shaft, steering wheel, or a combination thereof) is caused to translate forward, away from the user.
  • a portion of the steering column assembly e.g., the column tube, steering shaft, steering wheel, or a combination thereof
  • the portion of the energy absorption device attached thereto travels forward with the column tube. This may cause deformation of the energy absorption device.
  • the generally flat portion of the energy absorption plate facing away from the column tube remains fixed due to its engagement with the spring-biased fastener, such as a pin.
  • the pin (or other portion of the telescope mechanism) is made to break upon application of a prescribed load, especially in the event that the steering column is in the unlocked position (e.g., during a crash).
  • the energy absorption plate attached to the column tube will help absorb energy, typically by plastic deformation (e.g., as the first generally flat segment is held in place by the pin and as the second generally flat segment moves with the column tube).
  • the plate may plastically deform. For example, it may deform without plastic elongation, without plastic compaction, without plastic buckling or any combination thereof.
  • the forward end of the column housing may remain fixed in place, or otherwise be limited in the extent of forward travel (e.g., in an amount of less than about 50 mm, 20 mm or 10 mm).
  • energy absorption can be enhanced, or a greater load may be withstood when the steering column assembly includes an actuator, such as a pyrotechnic actuator. It is also contemplated that energy absorption can be enhanced with the addition of another energy absorption plate. For example, another energy absorption plate can be wrapped around the energy absorption plate as described herein. Therefore, the energy absorption plates can be in a nesting configuration.
  • the actuator such as the pyrotechnic actuator, may include a pin that penetrates both energy absorption plates (i.e., the inner energy absorption plate and the outer energy absorption plate).
  • the plates With the actuator pin penetrating, and thereby coupling, the two energy absorption plates, the plates are adapted to move together upon the forward translation of the column tube, as the actuator acts to fix the energy absorption plates. If the actuator pulls back the pin, the inner plate would function as the energy absorption plate during an impact (e.g., a secondary impact), due to being connected to the column tube as well as being in engagement with the pin at the first generally flat portion, while the outer plate moves freely with the column tube.
  • an impact e.g., a secondary impact
  • a stopper subassembly may be employed to limit the forward travel of the column tube, to limit the rearward travel of the column tube, or both.
  • the stopper subassembly may include a stopper that is adapted to contact a portion of the telescoping member (e.g., column tube) when the telescoping member has reached the maximum push-in distance, pull-out distance, or both.
  • the stopper subassembly may be particularly suited for a collapsible steering column assembly, such as an internally collapsible steering column assembly.
  • the stopper may be adapted to stop translation of the column tube by contacting a portion of the column tube (or translating member).
  • the column tube may have an element projecting from its outer surface that is adapted to contact the stopper when the tilt and or telescoping subassemblies are in an unlocked position.
  • the element projecting from the column tube, or a contact member may be positioned on the column tube to define the maximum forward translation of the column tube relative to the user.
  • the contact member for example, may be formed from a tongue formed in or on the column tube that has been shaped, crimped, bent, or otherwise positioned so that a portion of the tongue extends away from the column tube.
  • a covering may be placed over the tongue (e.g., an elastomeric sheath or a coating) to provide additional energy absorption, to protect the stopper, to reduce noise when the contact member contacts the stopper, or a combination thereof.
  • the column tube may have an opening or a dimple for receiving a portion of the stopper when the column tube reaches the maximum forward translation.
  • the stopper subassembly may include one or more resilient elements that have energy absorption characteristics. Resilient may be defined as being of a sufficient elasticity for returning generally to its original shape and/or size (or the shape and/or size prior to deformation) upon release of the compressive forces (e.g., while in an adjustment position, undamped position, or both).
  • the stopper may be formed at least partially of a resilient material.
  • the stopper may be constructed of a resilient material, such as a polymeric and/or elastomeric material, though metallic materials are also possible.
  • the stopper may be formed by extrusion methods and/or molding methods.
  • the stopper may be formed by employing one or more overmolding techniques (e.g. , so that two or more materials can be molded together).
  • the stopper subassembly may have one or more elements that are adapted to break away upon an applied force exceeding a threshold amount.
  • the stopper may be formed from one or more pieces.
  • the stopper may be integrally formed so it is a single piece.
  • the stopper may be formed of one or more portions.
  • the stopper may have a securing portion, a body portion, an orthogonal portion, or a combination thereof.
  • the stopper may be attached to an elongated member of the steering column assembly that is generally transverse to the column tube, column housing, or both.
  • the stopper may be attached to the elongated member so that it projects from the elongated member in a direction generally parallel to the longitudinal axis of the column tube, column housing, or both.
  • the elongated member may be a tilt bolt within the assembly.
  • the securing portion of the stopper may serve to secure the stopper to the tilt bolt.
  • the securing portion may be formed to at least partially receive the outer diameter of the tilt bolt
  • the stopper may be attached to the tilt bolt at the securing portion by snap fit, interference fit, adhesives, mechanical fasteners, or any other method of attachment.
  • the securing portion may have one or more features that allows the stopper to snap onto the tilt bolt.
  • the securing portion may have a generally C shaped surface adapted to contact the outer surface of the tilt bolt.
  • the securing portion may have one or more generally fiat, planar, linear, or non-curved portions on the surface adapted to contact the tilt bott to prevent the stopper from sliding axially or radially about the tilt bolt
  • the stopper therefore may be positively coupled to the actuation device so that it is moved in response to the locking and unlocking of the column.
  • the securing portion may ensure that the stopper is coupled to the tilt bolt so that the stopper rotates when the tilt bolt rotates. Therefore, an actuation of the tilt bolt via the lever or other actuator also causes the movement of the stopper, thereby allowing the stopper to be in an appropriate position during locked and unlocked conditions.
  • the stopper may include a body portion that extends from the securing portion.
  • the body portion may be adapted to fit and/or rotate within an axial slot or a gap of the column housing.
  • the body portion may be a generally elongated segment that joins the securing portion with the portion of the stopper that contacts a contact member associated with the telescoping member (e.g., column tube).
  • the stopper may include an orthogonal portion, which includes a face that is adapted to contact the contact member associated with the telescoping member.
  • the opposing surface of the orthogonal portion may be adapted to contact one or more surfaces of the column housing.
  • the orthogonal portion may have a width that is greater than the width of the body portion, securing portion or both.
  • the orthogonal portion and body portion may form a generally T shape, where the ends of the cross extend outwardly and away from the body of the stopper (e.g., to span the gap of the column housing).
  • the orthogonal portion may have a width that is greater than the axial slot or a gap in the column housing so that the ends of the T are adapted to contact the surfaces of the column housing on opposing sides of the axial slot or gap. At least a portion (e.g., the ends of the cross of the T) may bear against the column housing, especially when the column tube is pushed in a forward direction and the contact member is in contact with the stopper. The contact of the orthogonal portion of the stopper with the column housing and or column tube may arrest the rotation of the steering column lock lever in the unlock direction.
  • the face of the orthogonal portion may be generally angled or curved such that the stopper can be moved free with no or minimal interference between the stopper and the contact member of the column tube.
  • the surface of the contact member of the column tube may also have an angle or curve.
  • the angle of the surface of the contact member and the angle of the face of the orthogonal portion may be generally equal ⁇ about 10 degrees.
  • the angles of each surface may be generally complementary.
  • the angle of the surface of the face of the orthogonal portion of the stopper may be less than the slip angle between the stopper and the contact member.
  • the tangent of the angle may be less than the coefficient of friction between the stopper and the contact member.
  • This angular portion of the contact member, the stopper, or both may allow for the stopper to still be cleared from between the column housing and the contact member of the column tube when the column tube is pushed forward to its telescoping limit and is then put into a locked position. Therefore, if a user were to push in on the telescope stopper while locking the lever, the stopper may be positively pulled out of the way of the column tube (and contact member extending therefrom) so the stopper does not end up stuck or bound in place.
  • the adjustment subassembly may allow for the steering column assembly to be adjusted to a desired position relative to the user (e.g., tilt adjustment, telescopic adjustment, or both).
  • the adjustment may be actuated by a lever.
  • the lever may include a handle portion that the user moves (e.g., upward and/or downwardly relative to the user, relative to the ceiling and floor of the vehicle, or both).
  • the lever may be fixed to the adjustment subassembly (e.g., at an end of the elongated fastener, such as a tilt bolt) at a pivot point, where the handle portion is permitted to rotate about this pivot point.
  • the steering column assembly may be caused to be put in a locked position or in an unlocked position. For example, pushing the lever in a particular direction, such as downwards (e.g., toward the floor of the vehicle), may cause the column housing to become undamped from the column tube or may cause the rotation of a cam within a tilt slot in the tilt bracket, thereby permitting the user to adjust the position of the steering wheel by tilting, telescoping, or both.
  • the stopper When the steering column assembly is in a locked position, the stopper may be positioned so that the orthogonal portion does not contact the column housing, column tube, contact member of the column tube, or a combination thereof.
  • the stopper When the steering column assembly is in an unlocked position, the stopper may be positioned so that the orthogonal portion does contact the column housing, column tube, contact member of the column tube, or a combination thereof.
  • the orthogonal portion When the steering column assembly is in an unlocked position, the orthogonal portion may rotate downward, toward the column tube.
  • the orthogonal portion may contact one or more walls of the column housing, which may signal to the user that the lever cannot be moved further, may prevent the lever from being moved further, or both.
  • the face of the orthogonal portion, which faces away from the column housing, serves as a stop to limit the inward telescoping (i.e., toward the forward end of the steering column assembly) upon reaching the maximum telescope-in distance. Therefore, during telescoping inwardly and upon reaching the maximum telescope-in distance, the face of the orthogonal portion may contact the contact member extending outwardly from the column tube, which provides a stop to prevent the user from further inward telescoping.
  • the interaction between the stopper and the contact member may assist in relieving the energy absorption module from also being the telescoping stop. This may also reduce the impacts from inward telescoping operations on other parts of the assembly.
  • Methods of reducing friction between the elements may include, but are not limited to, minimizing the contact area between the two elements (e.g., by providing a point or line of contact); greasing or lubricating the surface of either or both the stopper and the contact member; modifying the shape of the surfaces (e.g., making one or more surfaces angled, arcuate, or curved), or a combination thereof.
  • the interaction between the spacer and the column tube may also provide additional safety features, such as a breakaway feature.
  • additional safety features such as a breakaway feature.
  • the stopper, the contact member, both, or another element of the telescoping mechanism may break to allow for the functioning of the energy absorption system in the event the column is left unlocked.
  • the column tube can be pushed forward with a force greater than an adjustment force (e.g., about 1000 N or greater, about 1500 N or greater or about 2000 N or greater; about 8000 N or less, about 7000 N or less, or about 6000 N or less).
  • the orthogonal portion may break away from the body portion of the stopper to allow the column tube to continue to translate forward, and to allow the energy absorption mechanism to function (e.g., via the energy absorption strip).
  • the contact member may contact the orthogonal portion of the stopper and be caused to be pushed into the column housing, to break away, or otherwise deform, to allow the column tube to continue to translate forward, and to allow the energy absorption mechanism to function. This may be an advantageous safety feature, for example, if a vehicle operator is traveling with the steering column assembly in an unlocked position and the vehicle is subsequently involved in a vehicle collision.
  • Fig. 1 illustrates a steering column assembly 10 having a forward end 12 and a rearward end 14.
  • a column housing 20 is pivotally attached to the vehicle via a mounting bracket 13 located at the forward end 12, though other configurations and brackets for mounting are also contemplated.
  • the steering column assembly 10 includes a steering shaft 16 at the rearward end 14, which is adapted for supporting a steering wheel (not shown).
  • the steering shaft 16 is supported by a column tube 18, which are both supported by the column housing 20.
  • the column tube 18 is movable relative to the column housing 20, particularly in a fore and aft direction for telescoping adjustment.
  • the steering shaft 16 and the column tube 18 are also adapted to be adjusted upwardly or downwardly relative to a driver via a tilt assembly that includes a tilt bracket 26 having two parallel and downwardly depending tilt plates 28 that support and engage a tilt bolt 32 (see Fig. 2).
  • Adjustment of the steering shaft 16 and column tube 18 in a tilt and/or telescoping manner may be initiated by operating a lever 22, which disengages adjustment mechanisms or unlocks the mechanisms, allowing a driver to put the steering wheel in
  • Fig. 2 illustrates the tilt assembly 24 and telescope assembly 40.
  • the column housing is not shown.
  • the position of the column tube 18 is permitted to be adjusted upwardly and downwardly relative to a driver or user of the vehicle via the tilt assembly 24, which includes a tilt bolt 32 supported on both ends by opposing tilt plates 28, each having a slot 30 that is generally vertically oriented (within which a cam is located).
  • the angle of the column tube 18 can be adjusted manually via unlocking the lever 22 and moving the steering wheel (not shown) to the desired height.
  • the tilt bolt 32 is permitted to move along the slot 30 during tilt adjustment and locks in place upon locking the lever 22.
  • telescoping adjustment wherein the column tube is permitted to move fore and aft during adjustment, is accomplished via the telescope assembly 40, which includes an energy absorption plate 52 that engages with a pin 44 when in a locked position.
  • the energy absorption plate 52 includes a portion that contacts and attaches to the outer wall of the column tube 18 (e.g., via rivets 72 shown in Figs. 3 and 4).
  • a user can unlock the lever 22, which releases the pin 44 from the energy absorption plate 52, allowing the user to adjust the position of the steering wheel (not shown) fore and aft.
  • the lever 22 includes a lever ramp 42 having an angled surface that is adapted to contact the head 46 of the pin 44.
  • the lever ramp 42 puts less or no pressure on the head 46 of the pin 44.
  • a spring 50 located around the body of the pin 44 between the head 46 and the tilt plate decompresses, thereby pushing the pin away from the energy absorption plate 52.
  • the lever ramp 42 increases pressure on the head 46 of the pin 44, which compresses the spring 50.
  • the end of the pin 44 which may be toothed, is forced toward the energy absorption plate 52 and engages with the toothed portion 66 of the energy absorption plate 52, thereby securing the telescoping position of the column tube 18 within the assembly.
  • Fig. 3 illustrates an assembly in a locked position.
  • the assembly includes a telescoping stopper 60 attached to the tilt bolt 32. Projecting from the column tube 18 is a contact member 74. An energy absorption plate 52 is also secured to the column tube 18 via rivets 72.
  • the column housing 20 includes an axial slot 70, which allows the telescoping stopper 60 to rotate upon rotation of the tilt bolt 32 when in locked and unlocked position. When in a locked position, thereby not allowing tilt and/or telescoping adjustment, an orthogonal portion 66 of the telescoping stopper 60 is rotated away from the column housing 20.
  • Fig. 4 illustrates an assembly in an unlocked position, thereby allowing for telescoping and or tilt adjustment.
  • the column tube 18 When in the unlocked position, the column tube 18 is permitted to move fore and aft within the column housing 20.
  • the tilt bolt 32 rotates, thereby also causing the telescoping stopper 60 to rotate.
  • the telescoping stopper 60 has a securing portion 62, which engages with the tilt bolt 32 to secure the stopper 60 thereto (e.g., via friction fit, snap fit, adhesives, or mechanical fasteners).
  • Extending from the securing portion 62 is a body portion 64.
  • the body portion 64 as shown has a width that is able to fit within the axial slot 70 of the column housing 20.
  • an orthogonal portion 66 On the opposing end of the stopper 60 is an orthogonal portion 66, which has a width that is greater than the width of the body portion 64.
  • the orthogonal portion also has a width that is greater than the width of the axial slot 70 of the column housing 20.
  • the orthogonal portion 66 is adapted to contact the walls of the column housing 20 on opposing sides of the axial slot 70. This contact may serve as a stop for the lever (not shown) so that the lever is not pushed or pulled past a desired position.
  • the orthogonal portion 66 may also provide energy absorption within the assembly.
  • Fig. 5 illustrates the assembly in an unlocked position, where the column tube 18 has been telescopically adjusted.
  • the contact member 74 on or extending from the column tube 18 is pushed into contact with a face 68 of the orthogonal portion 66 of the telescoping stopper 60, thereby stopping the column tube 18 from moving any further in the direction toward the column housing 20.
  • the stopper 60 therefore, serves to limit the distance the column tube 18 can travel during telescoping adjustment.
  • Fig. 6 is a side view of the telescoping stopper 60 of Fig. 5.
  • the telescoping stopper 60 includes a securing portion 62, which attaches the stopper 60 to the tilt bolt 32.
  • the securing portion 62 contacts the tilt bolt 32
  • there is a non-rounded segment 63 which may serve to further secure the stopper 60 to the tilt bolt 32 and prevent the stopper from rotating about the tilt bolt during adjustment.
  • the body portion 64 bridges the securing portion 62 and the orthogonal portion 66.
  • the face 68 of the orthogonal portion 66 is angled so that even if the stopper 60 and the contact member 74 are in contact with each other while the assembly is in an unlocked position, the stopper 60 is permitted to rotate (e.g., to a position like that shown in Fig. 3) when the assembly is put into a locked position, and the orthogonal portion 66 is not stuck between the column housing 20 and the contact member 74.
  • the contact member 74 also has an angled face to permit the orthogonal portion 66 to move clear of the contact portion, with no or minimal interference.
  • the stopper may have a tongue portion that extends away from the stopper from the orthogonal portion. This tongue portion may be permitted to engage with a slot in the column tube, rather than with a contact member projecting from the column tube.
  • a biasing spring could be employed on the contact member, stopper, or both, so that the angle of contact could exceed the slip angle.
  • a biasing spring may allow the contact member to be forced into an opening in the column tube so that a breakaway is not required.
  • any numerical values recited herein include all values from the lower value to the upper value in increments of one unit provided that there is a separation of at least 2 units between any lower value and any higher value.
  • the amount of a component or a value of a process variable such as, for example, temperature, pressure, time and the like is, for example, from 1 to 90, preferably from 20 to 80, more preferably from 30 to 70, it is intended that values such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 etc. are expressly enumerated in this specification.
  • one unit is considered to be 0.0001 , 0.001 , 0.01 or 0.1 as appropriate.

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

Abstract

Dispositif pour un ensemble colonne de direction réglable (10), comprenant une butée télescopique (60). La butée (60, 80) comprend une partie de fixation (62) conçue pour accoupler la butée (60, 80) à un élément allongé dans l'ensemble colonne de direction (10) ; une partie orthogonale (66) ayant une surface conçue pour entrer en contact avec un logement (20) de colonne de l'ensemble colonne de direction (10) lorsqu'il est dans une position déverrouillée et/ou une face opposée (68) conçue pour entrer en contact avec une partie d'un tube de colonne (18) de l'ensemble colonne de direction (10) pendant le réglage télescopique ; et une partie corps (64) reliant la partie de fixation (62) et la partie orthogonale (66). La butée (60, 80) est conçue pour limiter le déplacement vers l'avant du tube de colonne (18) lorsqu'il se trouve dans une position déverrouillée. Dispositif pour un ensemble colonne de direction réglable (10), comprenant une butée télescopique (60). La butée (60, 80) comprend une partie de fixation (62) conçue pour accoupler la butée (60, 80) à un élément allongé dans l'ensemble colonne de direction (10) ; une partie orthogonale (66) ayant une surface conçue pour entrer en contact avec un logement (20) de colonne de l'ensemble colonne de direction (10) lorsqu'il est dans une position déverrouillée et/ou une face opposée (68) conçue pour entrer en contact avec une partie d'un tube de colonne (18) de l'ensemble colonne de direction (10) pendant le réglage télescopique ; et une partie corps (64) reliant la partie de fixation (62) et la partie orthogonale (66). La butée (60, 80) est conçue pour limiter le déplacement vers l'avant du tube de colonne (18) lorsqu'il se trouve dans une position déverrouillée.
PCT/US2018/020366 2017-03-02 2018-03-01 Butée de déplacement télescopique de colonne de direction WO2018160788A1 (fr)

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US201762466167P 2017-03-02 2017-03-02
US62/466,167 2017-03-02

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CN115252260A (zh) * 2022-06-22 2022-11-01 东莞永胜医疗制品有限公司 一种支撑臂伸缩调节结构和膝关节支具
US11866093B2 (en) * 2021-12-30 2024-01-09 Steering Solutions Ip Holding Corporation Energy absorption strap assembly with customizable control bracket

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US20100300238A1 (en) 2009-05-29 2010-12-02 Gm Global Technology Operations, Inc. Energy Absorbing Device for a Collapsible Steering Column Assembly
DE102011056351A1 (de) * 2011-12-13 2013-06-13 Zf Lenksysteme Gmbh Anschlag für verstellbare Lenksäule
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EP1125820A2 (fr) * 2000-02-15 2001-08-22 Nsk Ltd Direction pour une automobile
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US20100300238A1 (en) 2009-05-29 2010-12-02 Gm Global Technology Operations, Inc. Energy Absorbing Device for a Collapsible Steering Column Assembly
DE102011056351A1 (de) * 2011-12-13 2013-06-13 Zf Lenksysteme Gmbh Anschlag für verstellbare Lenksäule
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DE102015216536B3 (de) * 2015-08-28 2017-02-16 Thyssenkrupp Ag Klemmvorrichtung einer verstellbaren Lenksäule für Kraftfahrzeuge

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Publication number Priority date Publication date Assignee Title
US11866093B2 (en) * 2021-12-30 2024-01-09 Steering Solutions Ip Holding Corporation Energy absorption strap assembly with customizable control bracket
CN115252260A (zh) * 2022-06-22 2022-11-01 东莞永胜医疗制品有限公司 一种支撑臂伸缩调节结构和膝关节支具

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