Abstract: A steering apparatus capable of accurately recognizing operations of an operation section and of reducing the number of parts and simplifying its structure. The steering apparatus is composed of a steering wheel for controlling movements, operation sections mounted on the steering wheel for operating equipment, and a vibration section for giving vibrations to at least a portion of the steering wheel in relation to the operations of said operation sections.

Abstract: An apparatus (10) comprises a vehicle steering wheel (12) having a hub portion (54) that includes an axially extending inner sleeve (80) having a circumferentially spaced plurality of openings (86). A vehicle steering shaft (14) has an end portion (120) that includes a circumferentially extending arcuate groove (124). A plurality of bearing elements (110) are at least partially disposed in the openings (86) in the inner sleeve (80). The bearing elements (110) are movable in a radial direction within the openings (86) between a disconnected condition and a connected condition. The disconnected condition permits relative axial movement between the steering wheel (12) and the steering shaft (14). The connected condition blocks relative axial movement between the steering wheel (12) and the steering shaft (14). An axially movable collar (130) is engageable with the bearing elements (110) to move the bearing elements in the radial direction from the disconnected condition to the connected condition.

Abstract: A steering wheel includes a boss for fastening the steering wheel to a steering shaft. Among other features, the steering wheel has a pair of lower spokes that are deformable to absorb energy in a collision. The boss conserves space and has relatively long splines for engaging the steering shaft. The boss includes a plate that facilitates insert molding and conserves space. The spokes include integrally formed airbag supports. A bolt retainer is included in the steering wheel. The bolt retainer holds a bolt for tightening the boss on the steering shaft, and the bolt retainer permits one-handed attachment.

Abstract: An apparatus (10) comprises a vehicle steering wheel (12) including a hub portion (54) having a splinded inner surface (62) and diametrically opposed first and second angled surface portions (76 and 78). A vehicle steering shaft (14) is rotatable about a first axis (16) to effect vehicle steering. The steering shaft (14) includes an end portion (18) having an outer surface with splines that mesh with the splined inner surface (62) of the hub portion (54) to connect the steering shaft non-rotatably with the steering wheel. The end portion (18) includes an inner surface (42) defining a passage (40) through the end portion that extends transverse to the first axis (16). A bolt (150) has a head portion (152), a threaded outer surface (156), and a shank portion (164). The shank portion (164) is disposed in the passage (40) through the steering shaft (14) and engages the inner surface (42). The head portion (152) has a first frustoconical surface (162). A nut (130) screws onto the bolt (150).

Abstract: In an assembly comprised of a steering wheel and a steering shaft, the steering wheel has a holding surface and two tensioning pins. The steering shaft has a longitudinal axis and two detent hooks which are movable between a detent position in which they engage the holding surface of the steering wheel and fix the steering wheel in an axial direction with respect to the steering shaft, and a release position in which the steering wheel can be drawn off from the steering shaft. The tensioning pins engage at the detent hooks such that the detent hooks can be brought from the detent position into the release position by means of the tensioning pins. Each of the tensioning pins is accessible from outside of the steering wheel.

Abstract: A core bar for a steering wheel includes an upper shell and a lower shell coupled to the upper shell. Each half shell includes a boss core-bar portion coupled to a steering shaft, a rim core-bar portion, and a spoke core-bar portion interposed between the two. An insertion is received in a hollow defined by the upper and lower shells.

Abstract: The invention relates to a vehicle steering wheel with a steering wheel rim, the steering wheel comprising a skeleton, and a skeleton covering which is visible from the exterior and has recesses. The skeleton covering is provided in a region of the steering wheel rim. The steering wheel further comprises at least one decorative segment which supplements a part of the skeleton covering and has detent noses which engage into the recesses in the skeleton covering. The decorative segment is a half shell having an essentially clip-shaped form in cross-section and has free edges which are provided with the detent noses.

Abstract: Steering wheel having a steering wheel rim which is hollow at least in some places and has ventilation openings for stabilizing the temperature of the steering rim. In the region of the at least one cavity, the steering wheel rim has a holder for fixing a fan module which sucks in environmental air and passes it into the cavity.

Abstract: There is disclosed an automotive steering wheel W1 including a heavy air bag system 30. This air bag system 30 is held by a horn-switching mechanism 40. Although the air bag system 30 is heavy, the operator has a good feel for the operation of the horn-switching mechanism 40. This horn-switching mechanism 40 comprises a stationary member 41, a movable member 48, a switch main body 50, coil springs 55, and a jawed bolt 56. The switch main body 50 comprises a stationary contact 52 mounted on the stationary member 41 and a movable contact 54 mounted on the movable member 48. The coil springs 55 bias the movable member 48 upward. The jawed bolt 56 permits the movable member 48 to be moved toward the stationary member 41 and limits the distance of the movable member 48 from the stationary member 41. At least one of the coil springs 55 is located at a height substantially equal to the height of the resultant center of gravity G of all components biased upward by all the coil springs 55.

Abstract: A hand wheel 10 for a nursery gate frame adjustment mechanism comprises a ratchet member 12 received in a housing. The ratchet member 12 has respective ratchet surfaces 24, 26 on opposite faces thereof, A screw-threaded bore 22 is formed through the ratchet member 12. The housing has a first part 14 for co-operating with the ratchet surface 24 on one face of the ratchet member 12 and a second part 16 for co-operating with the opposite ratchet surface 26 on the other face of the ratchet member 12. A compression spring 18 biases the ratchet member 12 towards the first part of the housing. In that way the hand wheel 10 rotates the ratchet member 12 in one direction by engagement of the first part 14 with the ratchet surface 24. In order to rotate the ratchet member in the opposite direction, the housing and ratchet member must be moved relative to each other against the bias of the spring 18 so that the second part 16 of the housing engages the ratchet surface 26.

Abstract: A core bar includes upper and lower half shells, each having a boss portion including a boss-edge coupling part for coupling the shells along the edges, a shaft fixing part placed substantially in the center of the boss portion and mounted to a steering shaft, and a weak part placed between the boss-edge coupling part and the shaft fixing part and wherein the shells face each other without being coupled; and a rim portion including a rim-edge coupling part for coupling the shells along the edges and a rim hollow part defined between the shells. A spoke portion is interposed between the boss and the rim portions, and includes a spoke-edge coupling part for coupling the shells along the edges and a spoke hollow part defined between the shells.

Abstract: A device for eliminating vibrations in motor vehicles, more particularly vibrations occurring in the steering wheel rim, includes a fastening plate and a vibratory body which is elastically connected to the fastening plate. An element is provided for limiting the amplitudes of vibration of the vibratory body, this element being coated with a vibration-damping material and being able to abut at a counter clement. The counter element is provided with a rough surface in a region of contact with the element.

Abstract: A steering wheel is provided with an airbag. The steering wheel has a central part for connection to a steering wheel attachment and a cavity for housing a module. The module includes an airbag and a horn. The steering wheel has an outer ring and a plurality of substantially radial spokes connecting the outer ring to the central part of the steering wheel. The spokes are covered with a first metal sheet integral therewith so as to give the steering wheel a sporting appearance.

Abstract: A method of manufacturing motor car steering wheels with an external shell made of composite materials, which comprises preparing a pile of sheets of composite materials, hot molding thereof for obtaining respective half-shells with a shape corresponding to that of respective halves of the steering wheel being manufactured, mechanical flattening of the front surfaces of the two half-shells, applying the two half-shells to opposite parts of a steering wheel body formed by a metallic core covered by resin, and mutual fixing of the two half-shells along said front surfaces. After flattening, the front surfaces of the two half-shells are mechanically worked to form respective complementary teeth which can be male-female coupled when the two half-shells are applied around the steering wheel body.

Abstract: A method of manufacturing a motor car steering wheel with an external shell made of carbon fibers, which comprises preparing a pile of sheet materials, hot molding thereof for obtaining respective half-shells with a shape corresponding to that of respective halves of the steering wheel being manufactured, mechanical flattening of the front surfaces of the two half-shells, mounting of the two half-shells above and under a steering wheel body formed by a metallic core covered by resin. The steering wheel body has lateral profiles which act as fixing supports for the two half-shells.

Abstract: An air bag module for a steering wheel includes an inflator, cushion, retainer ring, cover and a mounting plate with snap-in attachment studs. A wire spring fastening system is used to secure the module to the steering wheel. The system includes a retainer mechanism and a serpentine engagement wire which engages notches in the snap-in attachment studs. The retention mechanism also includes an alignment guide that is used with a disassembly tool to remove the air bag module from the steering wheel.

Abstract: A method is described for producing a motor vehicle steering wheel that is provided with a cover. With this method, the ring and cover are manufactured separately and are subsequently joined. In order to produce the cover, two unfinished parts are initially produced, into which a groove is milled. Subsequently, a decorative layer is applied to the unfinished part. A layer of lacquer is applied to the unfinished parts that are joined to form a tubular ring segment. During the following operational step, the tubular ring segment is divided into two halves, which are joined with the ring and thus form the cover.

Abstract: A steering wheel attachment assembly and a method of assembling the steering wheel attachment to a steering wheel shaft is presented. More particularly, a back mounting plate for attachment to a steering wheel module. The back mounting plate includes a through which extends from a first side of the back mounting plate to a center opening. Integrally formed within the back mounting plate is a hub which is disposed in the center opening. The hub includes an opening formed in the center thereof which receives one end of the steering wheel shaft. The hub further includes a side bore and trough combination permit an assembler to gain access to the steering shaft disposed within the hub opening. The steering wheel shaft is securely but removably coupled to the back mounting plate by an interface lock and a taper lock with the hub.

Abstract: An apparatus (10) comprises a vehicle steering shaft (12) rotatable about an axis (24) and a rotatable steering wheel (14). A member (16) drivingly connects the steering wheel (14) and steering shaft (12) to rotate the steering shaft about the axis upon rotation of the steering wheel. The steering wheel (14) has a straight ahead angular position relative to the steering shaft (12). The apparatus (10) includes structure for enabling the steering wheel straight ahead angular position relative to the steering shaft (12) to be changed. The structure includes cooperating portions (32, 44) of the steering shaft (12) and the member (16) which enable a coarse angular adjustment of the member relative to the steering shaft and cooperating portions (62, 92) of the steering wheel (14) and the member which enable a fine angular adjustment of the steering wheel relative to the member. The fine angular adjustment is of an angle smaller than the coarse angular adjustment.

Abstract: A method of manufacturing a motor car steering wheel with an external shell made of carbon fibers, which comprises preparing a pile of sheet materials, hot molding thereof for obtaining respective half-shells with a shape corresponding to that of respective halves of the steering wheel being manufactured, mechanical flattening of the front surfaces of the two half-shells, mounting of the two half-shells above and under a steering wheel body formed by a metallic core covered by resin. The steering wheel body has lateral profiles which act as fixing supports for the two half-shells.

Abstract: Steering wheel comprising a drive rim consisting of an internal polyurethane core, covered at least partially with a coating of a material with an aesthetically finer quality. The steering wheel is manufactured starting from a driving rim with a polyurethane core by means of a procedure comprising the following steps: grinding of the surface of the polyurethane core, providing a coating element of wood having plane shape and size congruent to at least one portion of the polyurethane core, applying of the coating element to the polyurethane core and respective bending of the same by means of a hot press provided with a suitable template, removing the excess part of the coating element, honing of the portion of the rim coated by the coating element, and protective varnishing of the coated rim.

Abstract: An air bag system, for example for a steering wheel, in which a surface of the cushioning arrangement facing the vehicle interior is at least partially covered by a thin-walled sheet metal unit. The sheet metal bar unit is fixedly connected with the surface of the cushioning arrangement. The sheet metal unit is provided with at least one turned-in edge toward the inside of the cushioning arrangement in the area of lateral edges of the cushioning arrangement as well as in the area of the at least one tear edge.

Abstract: A steering wheel includes a ring, a plurality of spokes extending from the ring toward the middle of the steering wheel, and a pad encompassed by the ring. An accessory panel having a switch is secured to the spokes. A support member supports the accessory panel with respect to the spokes. A fastening member fastens the accessory panel to the spokes. The support member is located separately from the fastening member.

Abstract: To provide a steering wheel which is lightweight, and which has adequate strength and shock resistance, a carbon fiber prepreg 13 is wound on a mandrel 11 or a lightweight foam core 40 so as to obtain a preformer 14. By heating this preformer 14 in a mold 18, a steering wheel is obtained wherein the rim is formed from a fiber-reinforced synthetic resin joined to a metal skeleton 23.

Abstract: A steering wheel is provided with an airbag. The steering wheel has a central part for connection to a steering wheel attachment, having a cavity for housing a module comprising the airbag safety device and a horn, an outer ring and a plurality of substantially radial spokes connecting the outer ring to the central part of the steering wheel. Around module there is provided a metal peripheral part fixed to the plurality of spokes by means of connecting means so as to give the steering wheel a sporting appearance.

Abstract: A steering device for a motor vehicle, with an actuating member for the introduction of the steering movement and with a steering linkage to transfer the steering movement to the wheels. The device is characterized in that the actuating member consists of a “steering wheel” (1) which is rotatable about a small angle and of a measured value transmitter (2) to generate an electrical or electronic position signal, and that the steering linkage is actuated by an adjustment drive which is controllable by an electrical or electronic regulating device as a function of the position signal.

Abstract: A vehicle steering handle comprises a boss portion disposed centrally thereof for accommodating an air bag, right and left grip portions disposed vertically on right and left sides of the boss portion for allowing gripping by a driver, and upper and lower horizontal connector portions connecting respective upper and lower ends of the right and left grip portions to thereby make the handle generally rectangular in shape. At least the upper connector portion extends substantially linearly. As a result, it becomes possible for the air bag to suitably deform to thereby support a collision load of a driver. Further, with the upper connector portion extending linearly, improved view to vehicle instruments is provided.

Abstract: This steering wheel includes a ring portion to be gripped during steering, a core having at least one ridge, and a core coating layer coating the core. The core coating layer has a relatively hard portion formed of a first synthetic resin and a relatively soft portion formed of a second synthetic resin arranged in the circumferential direction relative to each other. The relatively hard portion is harder than the relatively soft portion. The ridge is positioned along the core so as to be covered by the relatively hard portion.

Abstract: The horn switch assembly includes a fixed plate on a connector arm and a movable plate in an air bag module. When those plates are electrically continuous, a horn sounds. The movable plate is urged upward apart from the fixed plate. The movable plate is disposed such that a distance from the movable plate to the fixed plate is set at a fixed distance by two mounting bolts, screwed into the connector arm. Fore-spoke arm sections include torsional deformation parts, torsionally deformable, located outside the mounting seats of an air bag module. Back-spoke arm sections include first bending deformation parts located on the inner side of the mounting seats of the air bag module, and second bending deformation parts located on the outer side of the mounting seats and a column cover. The first bending deformation part has a lower bending rigidity than the second bending deformation part. A lower cover is made of synthetic resin, e.g.

Abstract: An apparatus (10) includes a vehicle steering shaft (12), a mounting member (14), a locking pin (16), and a nut (120). The vehicle steering shaft (12) is rotatable about a longitudinal axis (22) to effect vehicle steering. The steering shaft (12) has a first locking pin passage (92) extending through the steering shaft (12) and transverse to the longitudinal axis (22). The first locking pin passage (92) is defined in part by first (94) and second (96) tapered surface portions. Each of the first (94) and second (96) surface portions tapers from a first circumference to a second, smaller circumference in a direction toward the longitudinal axis (22). The first (94) and second (96) tapered surface portions taper in opposite directions. The mounting member (14) is receivable on the steering shaft (12) and has a second locking pin passage (72).

Abstract: A motor vehicle steering wheel is provided with an airbag. The steering wheel has a central part for connection to a steering wheel attachment, having a cavity for housing a module comprising an airbag, an outer ring and a plurality of substantially radial spokes connecting the outer ring to the central part of the steering wheel. The module is provided with a peripheral metal part overlapping spokes so as to give the steering wheel a sporting appearance.

Abstract: An integral steering wheel is produced from single-shot injection molding of a single thermoplastic elastomer. The thermoplastic foam material can produce desirable characteristics for both the rim and the airbag cover. The rim of the steering wheel has good wear characteristics and a targeted compressibility or "feel" while the airbag cover has the sought-after strength across a large temperature range and exhibits very little compliance. The present invention is very cost effective since the composite steering wheel/airbag cover is produced from one thermoplastic foam material, the scrim or substrate is not required, and the molding cycle time is drastically reduced.

Abstract: A vibration absorbing apparatus for a steering wheel (10) having an airbag assembly (16) attached to the steering wheel (10). The air bag assembly (16) is attached to a reaction plate (18) which is resiliently attached to an absorber plate (22) with elastomeric members (26). Attachment by the elastomeric members (26) is such that a predetermined resiliency of the elastomeric members (26) is not affected. This provides a consistent and repeatable apparatus for attachment, ensuring proper and efficient operation of the airbag as a mass damper.

Abstract: A woodgrained member having at least a color clear layer 22 on a surface of a woodgrained urethane-based member 16, comprises concave portions formed at the surface of the urethane-based member 16, a wood filler 20 embedded into the concave portions and a color clear layer 22 provided on the surface of the urethane-based member into which the wood filler 20 has been embedded, wherein the depth of the concave portions is 0.02 mm.about.0.1 mm. The urethane-based member 16 which has above structure and has a Shore A hardness of 75 or more, a Shore D hardness of 20 or more, an extensibility of 80.about.300%, and a density of 0.3.about.0.9 g/cm.sup.3 is a steering wheel.

Abstract: A steering wheel assembly generally comprises a hub having a bore for receiving an outer end of a steering column shaft. A gear is disposed within the upper end of the bore. The gear includes circumferentially spaced teeth extending radially outwardly from an annular collar. The annular collar defines an axial bore having internal threads complementary to threads on an outer end of the steering column shaft. The gear includes an axial inner end, an opposite axial outer end and an axial mid-point. A web-flange tapers radially outwardly from the axial mid-point on the collar toward the inner end.

Abstract: A steering wheel mounted on a steering shaft with a boss plate. The steering wheel has a gripping ring for manually turning a steering shaft. The steering wheel includes a metal ring core embedded in the gripping ring and connecting pieces formed integrally with the boss plate. Spoke cores extend between the ring core and the connecting pieces and each has a first end coupled to the ring core and a second end overlapping one of the connecting pieces. A fastener fastens together the spoke cores and connecting pieces at the second end of each spoke core.

Abstract: An apparatus includes an assembly to be mounted on a vehicle steering shaft which rotates about an axis to steer the vehicle and which has a threaded end portion. The assembly includes a steering wheel armature (10), a hub (34) fixedly connected to the steering wheel armature (10) and for non-rotatable attachment to the steering shaft, an inflatable vehicle occupant restraint (50), an inflator (15) for providing inflation fluid for inflating the vehicle occupant restraint (50), a frame (24) supporting the vehicle occupant restraint (50), and the inflator (15) on the steering wheel armature (10), and a cover (35) covering the steering wheel armature (10), the vehicle occupant restraint (50), and the inflator (15). A rotatable fastener (30) axially forces the assembly onto the steering shaft with the hub (34) non-rotatably attached to the steering shaft. The fastener (30) has an attachment portion (33) for threaded engagement with the threaded end portion of the steering shaft.

Abstract: A steering wheel has a ring core embedded in a gripping ring, a plurality of spokes extending in the ring core, a plurality of spoke cores embedded in the associated spokes. A connecting member connects at least two spoke cores together. A coupling mechanism couples the boss to the connecting member. The coupling mechanism includes an cylindrical support formed on the connecting member, and a pair of spaced ribs formed on the boss for holding the support. The connecting member fits between the ribs when the connecting member is coupled to the boss. A bolt fastens the support to the ribs.

Abstract: An apparatus is provided for use in a vehicle having a rotatable steering shaft (32) and a locking mechanism (56) for preventing rotation of the steering shaft. The locking mechanism (56) is deactivated by an ignition key (58) in the vehicle's ignition. The apparatus comprises a vehicle steering wheel assembly (20) having a front side (68) facing a driver of the vehicle and a back side facing away from the driver, an inflatable vehicle occupant protection device (90) for helping to protect the driver of the vehicle in a vehicle collision, and a mechanism (60, 110) for removably connecting the inflatable vehicle occupant protection device (90) with the steering shaft (32). The mechanism (60, 110) for removably connecting the inflatable vehicle occupant protection device (90) requires rotation of the steering wheel assembly (20) to accomplish removal of the inflatable vehicle occupant protection device from the steering shaft (32).

Abstract: A device for fastening a steering wheel to a steering column, transmitting both torque and axial forces without play, whereby the end of the column and the hub of the wheel are designed to ensure form-fit transmission of torque at the site of their engagement. The device has a groove-like depression around the site of engagement on the column, the site of engagement on the hub comprises a stationary component and a component that pivots around it on an axis that parallels the axis of the column, the stationary component can be attached form-fit to the column, an elevation on the pivoting component that matches the groove-like depression and extends along at least part of it, and the pivoting component can be pivoted in two directions by a nut-and-bolt assembly installed axially non-displaceable in both the stationary component and the pivoting component, engaging and disengaging the elevation with the depression.

Abstract: An apparatus in connectible to a steering wheel for aiding disabled drivers. The apparatus includes a base having a first part and a second part for moving with a respect to one another. The base defines a steering-wheel-receiving aperture between the first and second parts for allowing the base to substantially sheath a portion of the steering wheel. A hinge connection is formed between the first and second parts of the base allowing pivotal movement with respect to one another. The hinge connection is formed along a common edge portion of the first and second parts for allowing placement of the base with respect to the steering wheel. A latch releasibly retains the first and second parts of the base with respect to one another. The latch is connected to the first and second parts opposite from the hinge axis. A knob is connected to the base for gripping by the driver with one hand for controlling movement of the steering wheel when the base is attached to the steering wheel.

Abstract: A device for mounting an integrally formed steering wheel on the steering shaft of a vehicle. The device includes a boss to couple the steering wheel to the steering shaft on which is rotatably mounted a fastener that is rotated by a drive gear arrangement. The drive gear is on shaft that is rotatably mounted in a housing connected to the boss so that the drive gear that meshes with a complementary drive gear on the fastener to rotate and fasten the steering wheel to the steering shaft. Retainers are used to support the gear shaft to opposing sidewalls of the housing, and include bushings located between the retainer and the gear shaft.

Abstract: For the production of a steering wheel with a seamless casing, surrounding the steering wheel rim, the steering wheel spokes and the central region for an airbag covering with tear-open lines, of a plastic moulded part produced in one piece by casting or injection moulding, with a closed surface and a possibly foamed base body, a method is proposed which is characterized in that a core of a low-melting material is fastened to the central base part of the steering wheel skeleton structure, that thereafter the steering wheel skeleton structure and the core are placed into a mould for the formation of the plastic moulded part, that the plastic moulded part is produced and that after the setting of the plastic moulded part, the core is melted by an increase in temperature and the material is removed in liquid form from the plastic moulded part.

Abstract: A steering wheel and lock arrangement, which includes a steering wheel and a lock, the steering wheel being formed of an upper wheel half and a lower wheel half, the lower wheel half having a first oblong insertion hole and two second oblong insertion holes at a top side wall thereof and a respective coupling chamber respectively defined inside each oblong insertion hole, the upper wheel half having a downward rod with a transverse block pivotably coupled to the coupling chamber in the first oblong insertion hole, the lock being securely mounted in the upper wheel half and moved with the upper wheel half between the two second oblong insertion holes at the lower wheel half and operated to lock the steering wheel between the operative position and the non-operative position.

Abstract: A steering wheel body 1 comprises sheaths 7a, 7b which covers a ring core bar 5 and spoke core bars 6A-6C, and a pad 3 formed integrally with the sheaths. A boss 8, 51, 28 is integral with the spoke core bars. A steering shaft 30 is formed at a distal end thereof with a serration 31 and an annular groove 32. The boss 8, 51, 28 includes a boss plate 33, a cylindrical portion 34, 74 with a serration 38, 68, 78, and a yoke portion 35 with through holes 36, 37, 66, 67, 76, 77. The cylindrical portion 34, 64, 74 is fitted on the end of the steering shaft 30 such that the serrations 31, 38, 68, 78 mesh with each other, and a bolt 41, 81, 91 is inserted and screwed into the through holes 36, 37, 66, 67, 76, 77. A collar 47 fitted on the bolt 41, 81, 91 is fitted in the annular groove 32. Strain stress is never transmitted directly to the bolt 41, 81, 91.

Abstract: A method and apparatus for providing a leather wrapping on a steering wheel having a ring radially spaced and circumferentially extending about a central hub by providing a groove along the surface of the ring, preferably on the inwardly facing edge thereof, into which the edges of the leather wrapping may be inserted and secured and a bead which fits snugly within said groove to cover the groove and secure the edge of the leather therein.

Abstract: A motor vehicle steering column including a steering shaft, a steering hand wheel, and an attachment between the steering shaft and the steering hand wheel. The attachment includes a cone-shaped outside shoulder on the steering shaft, a cone-shaped inside shoulder in a bore in a hub of the steering hand wheel, a retaining nut on on the steering shaft, and a plurality of outside spline teeth on the steering shaft in mesh with a plurality of inside spline teeth in the bore in the hub of the steering hand wheel. Two of the inside spline teeth are merged to define a double-wide blocked tooth. One of the outside spline teeth is eliminated to define a substantially double-wide longitudinal blocked tooth groove. The blocked tooth has a lip extending beyond the ends of the inside spline teeth which seats on and slides over the ends of the outside spline teeth until the blocked tooth registers with the blocked tooth groove.

Abstract: A steering wheel is provided having a frame structure which is lightweight and excellent at absorbing shocks. The steering wheel comprises a boss mounted to a steering shaft, an annular-shaped grip frame which the driver gripped to steer the vehicle, and a base frame provided with the boss. A plurality of spoke frames extend from the grip frame toward the base frame. The plurality of spoke frames comprise first, second and third spoke frames. The first and second spoke frames are connected directly to the base frame. A connection member connects the third spoke frame and the base frame to each other. The connection member comprises a straight portion which extends to intersect the third spoke frame and is provided with first and second ends. Intermediate sections extend from the first and second ends of the straight portion, respectively, toward the base frame. Bent elbows connect the respective intermediate sections to the base frame.

Abstract: A steering wheel includes a ring portion to be gripped during steering. The ring portion includes a core, a core coating layer coating the core, and a decorative layer arranged at a portion of the surface of the core coating layer. The decorative layer has a printed layer and a transparent protective coating layer. The printed layer is formed by hydraulic transfer and is arranged to cover surface portions of the core coating layer. The transparent protective coating layer covers the surface of the printed layer so as to protect the printed layer. The ring portion further includes a skin arranged at the remaining surface portions of the surface of the core coating layer and a level difference portion for folding therein the end portions of the skin arranged between the portion and the remainder of the surface of the core coating layer. The smooth decorative layer can be easily formed on the surface of the ring portion in this manner.

Abstract: A device for attaching a steering wheel hub to a steering wheel column, while simultaneously fixing a contact unit to the steering wheel, includes a fastener that has a head part engaging in the hub and a shank that engages partially in the hub and partially in the shaft. In a locked position, the fastener engages a recess in the contact unit to prevent the steering wheel hub from rotating relative to the stator of the contact unit. In an unlocked position, the fastener partially engages the hub, partially engages the column, and disengages from the recess in the contact unit to fixedly connect the hub to the column and allow the hub, and therefore the rotor of the contact unit, to rotate.