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 invention relates to a steering column device for a vehicle that can smoothly move a tightening port, and can prevent occurrence of a hitting sound while maintaining good operation of tilt and / or telescopic adjustment.
• a steering column is configured to be tiltable and telescopic slidable, and a steering column is mounted on a vehicle body side bracket (tilt bracket) mounted on a vehicle body.
• the column-side bracket is configured to be freely pressed.
• Tightening bolts are inserted through the tilt adjustment long holes formed in the vehicle body side bracket and the telescopic adjustment long holes formed in the column side bracket, and one end of the tightening bolt has a clamp mechanism.
• the operating levers are connected via a cam mechanism and a screw mechanism, thereby rotating the operating lever in one direction, tightening the tightening bolts, and pressing both brackets in contact with each other to adjust the tilt and / or telescopic position. While tightening and fixing, the operation lever is turned in the opposite direction to release the tightening of the tightening bolts, release the pressure contact of both brackets, and make it possible to adjust tilt and tilt or telescopic adjustment. ing.
• the tightening port moves together with the steering column and the column side bracket in a substantially vertical direction along the tilt adjustment slot of the vehicle body side bracket.
• the steering column and column side bracket The vehicle moves substantially in the longitudinal direction of the vehicle along the telescopic adjustment slot while engaging the fastening port with the telescopic adjustment slot.
• the long hole for tilt adjustment and the long hole for telescopic adjustment each have a small gap with respect to the tightening port.
• the chill Bok and / / or Te less Copic adjustment for both adjusting long holes, Porto tightening as wear in moving smoothly, tilt and / or the operation of the telescopic adjustment maintaining good I have.
• the brackets on both the vehicle body side and the column side described above are pressed against each other even if the long holes for adjustment each have such a small gap. Therefore, there is no gap between the long holes for adjustment and the tightening bolts.
• the present invention has been made in view of the above-described circumstances, and enables a tightening bolt to be moved smoothly, and a tapping sound is generated while satisfactorily maintaining the operation of tilt and / or telescopic adjustment. It is an object of the present invention to provide a steering column device for a vehicle, which can prevent the occurrence of the vehicle.
• a steering column device for a vehicle is provided with a column-side bracket attached to a steering column on a vehicle-side bracket attached to a vehicle body so as to swing or slide.
• the long hole or round hole for tilt adjustment and the long hole or round hole for telescopic adjustment have a slight gap with respect to the tightening port, respectively, for tilting and / or telescopic vehicle steering.
• An annular or cylindrical elastic member is fitted around the outer peripheral surface of the tightening port to prevent the tightening port from sticking to the gap during the tilt or telescopic adjustment. .
• the annular or tubular elastic member can be formed of a synthetic resin.
• the column-side bracket has a bottom plate at a position facing the steering column, and the annular or cylindrical elastic member contacts the bottom plate. While being in contact with each other, an annular or cylindrical elastic support portion acting to urge the fastening bolt from the bottom bottom plate portion toward the steering column to raise the fastening bolt by at least the gap. Can be provided.
• an annular or cylindrical elastic member is fitted around the outer peripheral surface of the tightening port to prevent rattling of the tightening port by a small gap during tilt or telescopic adjustment. Therefore, when tilting and / or telescopic adjustment, when the tightening bolt is moved relatively to the long hole or round hole for both adjustments, the long hole or round hole for both adjustments is caused by a slight gap. There is no rattling between the clamp and the tightening port, and no striking noise is produced.
• FIG. 1 is a partial sectional side view of a shock absorbing tilt and / or telescopic steering column device according to a first embodiment of the present invention.
• FIG. 2 is a cross-sectional view taken along line AA of FIG.
• FIG. 3 is a sectional view of a shock absorbing tilt and / or telescopic steering column device according to a second embodiment of the present invention (a sectional view taken along line AA in FIG. 1). Equivalent).
• FIG. 4 is an enlarged sectional view of a main part of FIG. Embodiment of the Invention
• FIG. 1 is a side view of a shock absorbing tilt and / or telescopic steering column device according to a first embodiment of the present invention.
• FIG. 2 is a cross-sectional view taken along line AA of FIG.
• a steering column 1 rotatably supports a steering shaft 2, and a steering wheel (not shown) is mounted on an upper end of the steering shaft 2.
• the steering column 1 is supported and fixed to the vehicle body at two locations, an upper bracket on the rear side of the vehicle and a lower bracket on the front side.
• the upper bracket on the rear side of the vehicle consists of a vehicle body upper bracket 4 (tilt bracket) fixed to the vehicle body and a column side upper bracket 5 (distance bracket, Fig. 2) fixed to the steering column 1.
• the sockets 4 and 5 are pressed against each other.
• the upper bracket 4 on the vehicle body side is a U-shaped main body side plate portion 4a, 4a extending downward with the steering column 1 therebetween, and extends to both sides from the main body side plate portions 4a, 4a and is fixed to the vehicle body by a port.
• Flange portions 4b, 4b, and approximately U-shaped overhang portions 4c, 4c projecting from the main body side plate portions 4a, 4a toward the front of the vehicle, and downward from the main body side plate portions 4a, 4a.
• the column-side upper bracket 5 directly contacts the lower portion of the steering column 1 and is fixed to the lower portion by welding or the like.
• the side plates 5b, 5b which extend and are pressed against the main body side plates 4a, 4a of the vehicle body side upper bracket 4, and the fitting plate 5c ( Bottom plate).
• a long hole 6 for tilt adjustment is formed in the body side plate portion 4a of the upper bracket 4 on the vehicle body, and a long hole 7 for telescopic adjustment is formed in the side plate portion 5b of the column upper bracket 5.
• a tightening port 8 is inserted into the tilt adjusting slot 6 and the telescopic adjusting slot 7, and one end of the tilt tightening port 8 is connected to an adjusting nut 9a via an adjusting nut 9a.
• Operation lever 9 is attached by b.
• a substantially U-shaped coating plate 10 and a shock absorbing plate 11 for absorbing shock energy at the time of a secondary collision are provided on the flange 4 b of the upper bracket 4 on the vehicle body side. 1, it is fixed to the vehicle-body-side strength member 102 shown by oblique lines in FIG.
• the shock absorbing plate 11 has a base end 11 a fixed to the vehicle body by a port 101, and extends in a substantially U-shaped overhanging portion 4 c of the vehicle body side upper bracket 4 toward the front of the vehicle. After being curved by an arc-shaped portion 1 lb, it extends inside the overhang portion 4c to the rear of the vehicle.
• the impact energy directed toward the front of the vehicle The racket 4 leaves the coating plate 10 and moves with the steering column 1 to the front of the vehicle.
• the shock absorbing plate 11 has its base end 11a fixed to the vehicle body by the port 101, so that it remains on the vehicle body side, while the arc-shaped portions 11b etc. However, it is plastically deformed (squeezed) in the approximately U-shaped overhanging portion 4c of the vehicle body-side upper bracket 4 that moves in front of the vehicle. Due to the plastic deformation (ironing) of the shock absorbing plate 11, the shock energy at the time of the secondary collision can be absorbed. These constitute a shock absorbing mechanism.
• the lower bracket on the front side of the vehicle is composed of a column lower bracket 12 fixed to the steering column 1 and a vehicle body lower bracket 13 fixed to the vehicle body and pressed against the column lower bracket 12.
• the column-side lower bracket 12 has an axial long hole 27 extending in the axial direction.
• a support pin 15 passes through the long slot 27 in the axial direction of the lower bracket 12 on the column side and the lower bracket 13 on the vehicle body, and is fixed by caulking.
• an intermediate shaft 17 is connected to a front portion of the steering shaft 2 via a universal joint 16.
• a balance panel 20 (or a panel for flipping up the steering column 1) for holding the steering column 1 so as to lift it.
• the balance or flip-up panel 20 is, for example, a coil panel, and has a pair of coil body portions 20a, 20a (FIG. 2), a cut-off end 21 and a folded portion 22 (FIG. 2). are doing.
• the cut-off end 21 is locked in a locking hole 23 formed in the suspension portion 4 d of the vehicle body-side upper bracket 4, and the folded portion 22 (FIG. 2) is formed of a synthetic resin sliding member 3.
• the column-side upper bracket 5 is supported upward when tilting, tilting, or telescopic.
• the long hole for tilt adjustment 6 and the long hole for telescopic adjustment 7 are each slightly spaced from the tightening bolt 8 (At, FIG. 4). ) have.
• the tightening port 8 is prevented from sticking for a small gap (mm t, FIG. 4). , 40 are externally fitted.
• Each annular elastic member 40 is made of synthetic rubber, and the tightening bolt 8 is directed from the bottom plate portion 5c toward the steering column 1 while abutting against the bottom plate portion 5c of the column upper bracket 5. It has annular elastic support portions 41, 41 which act to sexually bias and lift the tightening port 8 by at least the clearance ( ⁇ t, FIG. 4). Note that the elastic member 40 may be formed of a synthetic resin.
• the tightening bolt 8 can be relatively moved along with the pair of elastic members 40 and 40 along both the adjustment slots 6 and 7. Due to the slight gap (At, FIG. 4), no rattling occurs between the adjusting long holes 6, 7 and the tightening port 8, and no hitting noise is generated. No.
• the tightening bolt 8 can be moved smoothly, and tilt and / or telescopic adjustment can be performed. Good operation can be maintained.
• FIG. 3 is a cross-sectional view of a shock-absorbing tilt and tilt or telescopic steering column device according to a second embodiment of the present invention (corresponding to a cross-sectional view taken along line AA in FIG. 1). ).
• FIG. 4 is an enlarged sectional view of a main part of FIG.
• the tightening port 8 is prevented from sticking to the outer peripheral surface of the tightening bolt 8 by a small gap (A t).
• the member 50 is externally fitted.
• the tubular elastic member 50 is a dedicated part, and has improved assemblability compared to the first embodiment using a pair of elastic members 40 and 40. Further, the cylindrical elastic member 50 is formed of a soft synthetic resin or synthetic rubber.
• the tubular elastic member 50 is elastically urged from the bottom plate 5c toward the steering column 1 by tightening the tightening bolt 8 while contacting the bottom plate 5c near both ends thereof. It has a plurality of elastic support portions 51 and 51 that act to lift Porto 8 by at least the clearance (At, Fig. 4).
• each elastic support portion 51 is annular and sharply pointed. Further, for the height dimension (H) of each elastic support portion 51, the outer diameter ( ⁇ ) of the tightening port 8 is subtracted from the distance (L) from the upper side of the telescopic adjustment slot 7 to the bottom plate portion. It is set more than the above. Thereby, each elastic support portion 51 can act to lift the fastening port 8 by at least the gap (A t). In FIG. 4, the dimensions of the gap (A t) are exaggerated for clarity. Therefore, at the time of tilting and / or telescopic adjustment, the tightening bolt 8 can move relatively along the adjusting long holes 6 and 7 together with the cylindrical elastic member 50.
• the present invention is not limited to the above-described embodiment, and can be variously modified.
• a tilt type steering column may be used.
• a long hole for tilt adjustment is formed in the vehicle body side bracket.
• a round hole is formed in the column side bracket.
• a telescopic steering column may be used.
• a round hole is formed in the vehicle body-side bracket, and a long hole for telescopic adjustment is formed in the column-side bracket.
• annular or cylindrical flexible member that prevents the tightening port from sticking to the outer peripheral surface of the tightening bolt by a small gap during tilt and / or telescopic adjustment.
• the member is externally fitted. Therefore, when moving the tightening port relatively during tilt or telescopic adjustment, there is a gap between the tilt and Z or telescopic adjusting holes and the tightening bolt due to a slight gap. There is no sound and no hitting sound.
• the tightening port can be moved smoothly, and the tilt and / or telescopic adjustment operation can be performed. It can be maintained well.

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

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=29706627

Family Applications (1)

Country Status (7)

Families Citing this family (11)

Citations (6)

Family Cites Families (12)

• 2002
  • 2002-06-04 JP JP2002163175A patent/JP4192502B2/ja not_active Expired - Fee Related
• 2003
  • 2003-06-02 EP EP03730763A patent/EP1510434B1/en not_active Expired - Lifetime
  • 2003-06-02 US US10/512,471 patent/US7500414B2/en not_active Expired - Fee Related
  • 2003-06-02 AU AU2003241728A patent/AU2003241728A1/en not_active Abandoned
  • 2003-06-02 WO PCT/JP2003/006925 patent/WO2003101807A1/ja not_active Ceased
  • 2003-06-02 DE DE60328599T patent/DE60328599D1/de not_active Expired - Lifetime
  • 2003-06-02 CN CNB038127377A patent/CN100343104C/zh not_active Expired - Fee Related

Patent Citations (6)

Non-Patent Citations (1)

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