• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    PURPOSE: A rotation preventive structure of an upper bracket for controlling a tilt of a steering column assembly is provided to protect a driver by preventing the rotation of an upper bracket and reduce a prime cost by lightening the weight of a steering column assembly. CONSTITUTION: A rotation preventive structure of the upper bracket for controlling a tilt of a steering column assembly comprises; a supporting bracket (40) on which an external jacket is fixed; a tilt control structure (30) which is composed of an upper bracket (50) fixed by a locking bolt (70) and a locking nut (80) on a car body. A supporting bracket (40) comprises; a supporting side (42) (42a) formed on the both sides of a supporting bracket (40); a hole (43) pierced aslant to a supporting side (42) (42a); a locking nut (80) which is conjoint to a locking bolt (70) and works as a stopper. This rotation preventive structure forms a hole (43) on a supporting side (42) (42A) by inserting into the inside of a upper bracket (50) and inserts a snag (81) formed on a locking nut (80) closely into a locking bolt (70) for fixing a tilt control structure (30), thereby preventing the rotation of an upper bracket when a upper bracket is separated from a car body at a car collision and reducing a prime cost by lightening the weight of a steering column assembly.
    公开号:KR20000028020A
    申请号:KR1019980046125
    申请日:1998-10-30
    公开日:2000-05-15
    发明作者:김석주
    申请人:김태구；대우자동차 주식회사；
    IPC主号:
    专利说明:

    Top bracket anti-rotation structure for tilt adjustment of steering column assembly
    The present invention relates to a tilt adjustment structure of an automobile steering column assembly, and in particular, to form a locking hole in the support bracket of the tilt adjustment structure for adjusting the tilt of the steering column assembly, the locking member is inserted into the locking hole tilt adjustment structure The upper part for tilt adjustment of the steering column assembly which protects the driver by reducing the weight of the steering column assembly while reducing the cost by preventing the upper bracket which supports the upper part of the steering column assembly during impact from being formed in the fastening nut to be fixed. The anti-rotation structure of the bracket.
    In general, the tilt of the steering column assembly of an automobile is to adjust the steering wheel angle by adjusting the tilt of the steering column assembly, which adjusts the steering wheel angle according to the driver's physical condition to improve steering power and at the same time the driver has an impact. It has the effect of reducing the impact on the.
    The tilt of such a conventional steering column will be described with reference to the accompanying drawings.
    1 is a partial cross-sectional plan view showing the structure of a conventional steering column assembly, Figure 2 is an exploded perspective view showing a structure for preventing the rotation of the upper bracket for tilt adjustment of the conventional steering column assembly, Figure 3 is a tilt adjustment of the conventional steering column assembly 4 is a cross-sectional view showing an upper bracket anti-rotation structure, and FIG. 1 to 4, the steering column assembly (a) is divided into a steering shaft (b) and the inner and outer jacket (c) (d).
    The steering shaft (b), the steering wheel (not shown) is installed on the upper portion, the lower end is connected to the gear device (not shown).
    A first rotating member (b-1) is inserted into the lower outer diameter of the steering shaft (b), and a lower inner diameter of the inner jacket (c) inserted into the lower bracket (e) by the first rotating member (b-1). The steering shaft b is rotatably inserted in the.
    The lower bracket (e) is fixed to the vehicle body (a-1), the first bracket (e-1) into which the lower portion of the inner jacket (c) is inserted, and the rivet to the first bracket (e-1). and (e-3), the second bracket e-2 is rotatably provided.
    The inner jacket (c), the steering shaft (b) is inserted into the inner diameter, the lower outer diameter is inserted into the second bracket (e-2) of the lower bracket (e).
    The outer jacket (d) is inserted into the outer diameter of the inner jacket (c), and the tilt adjustment structure (f) for adjusting the angle of the steering shaft (b) is provided above the outer diameter.
    In addition, a second rotating member (b-2) is installed between the inner and outer jackets (c) and (d) to rotate the inner and outer jackets (c) and (d).
    The tilt adjustment structure (f) comprises a support bracket (g) on which the outer jacket (d) is seated, and an upper bracket (h) on which the support bracket (f) is inserted and fixed to the vehicle body (a-1). .
    The support bracket (g) includes support pieces (g-1) (g-2) on which the outer jacket (d) is seated, and support pieces formed on both sides of the mounting pieces (g-1) (g-2). (g-3) (g-4).
    An end stopper member g-5 is formed at one end of the support piece g-3 and g-4 of the support bracket g, and a fitting hole g-6 is formed at both sides to face each other. A mounting portion (g-2 ') on which the outer jacket (d) is seated is formed on a mounting piece (g-1) (g-2) of the support bracket (g).
    The upper bracket h has an insertion portion h-1 through which the support bracket g is inserted, and both sides of the insertion portion h-1 support the support pieces g-3 and g−. A vertical piece (h-3) (h-4) having a guide hole (h-2) corresponding to the fitting hole (g-6) of 4) is formed, and the vertical piece (h-3) (h-4) is formed. Fastening piece (h-5) is formed at the top of the). The fastening piece (h-5) is fixed to the vehicle body (a-1) as a capsule (h-6) filled with plastic.
    The stopper i is inserted into the guide hole h-2 formed in the vertical piece h-3 of the upper bracket h. The stopper (i), the locking projection (i-1) is inserted into the guide hole (h-2) is formed, the guide hole (h-2) and the support bracket (g) of the upper bracket (h) The insertion hole (i-2) is formed to correspond to the fitting hole (g-6).
    The outer side of the stopper (i) is provided with a control lever j is formed with the insertion hole j-1 corresponding to the insertion hole (i-2) of the stopper (i). Insertion hole (j-1) of the adjustment lever (j), the insertion hole (i-2) of the stopper (i) and the guide hole (h-2) and the support bracket (g) of the upper bracket (h) ( g-6) is sequentially passed through the fastening bolt (k) is inserted, and fastening the fastening nut (l) to the fastening bolt (k).
    The fastening bolt (k) and the fastening nut (l) is made of a three-pitch type, that is, when the fastening bolt (k) by one rotation, the fastening bolt (k) moves three pitches along the thread of the fastening nut (l) Done.
    Inside the fastening nut (l) is formed a projection (l-1) is inserted into the guide hole (h-2) of the vertical piece (h-4).
    Referring to the operating state of the conventional steering column assembly configured as described above, as shown in Figure 1, when the driver properly rotates the steering wheel (not shown) installed on the steering shaft (b) in accordance with the traveling direction of the vehicle, the body (a A steering shaft (b) having a lower outer diameter inserted into the inner jacket (c) inserted into the second bracket (e-2) of the lower bracket (e) fixed at -1) is the first rotation of the outer diameter of the steering shaft (b). The inner and outer jacket (d) (c) is rotated by the second rotating member (b-2) is rotated by the member (b-1) and installed between the inner and outer jacket (d) (c), and its rotational force is insufficient. It is transmitted to the gear device shown to facilitate the steering of the vehicle.
    On the other hand, as shown in Figs. 2 to 4, in order to adjust the tilt of the steering shaft b, when the adjusting lever j of the tilt adjusting structure f is rotated clockwise, the adjusting lever j is clockwise. And the insertion hole (j-1) of the control lever (j), the insertion hole (i-2) of the stopper (i), the guide hole (h-2) of the upper bracket (h), and the support bracket. (g) of the fastening hole (g-6) is inserted through sequentially and the fastening bolt (k) fastened by the fastening nut (l) is rotated in the clockwise direction. At this time, the fastening nut (l) fitted with the protrusion (l-1) in the guide hole (h-2) of the fastening bolt (k) and the other vertical piece (h-4) of the upper bracket (h) is fastened in a three-pitch type The fastening force of the fastening bolt (k) is easily released to loosen the fastening force of the steering shaft (b) and the outer jacket (d), and the guide hole formed on the vertical piece (h-3) on one side of the upper bracket (h) ( A locking protrusion (i-1) of the upper and lower stoppers (i) is inserted into h-2) to prevent the adjustment lever (j) from turning when the adjustment lever (j) is rotated.
    In this state, if the steering wheel is appropriately moved up and down, that is, the tilt is adjusted, the guide bolts are formed on the vertical pieces h-3 and h-4 of the upper bracket h. A support bracket inserted into the insertion portion h-1 of the upper bracket h, which is moved up and down along h-2) and is fastened and fixed as a capsule h-6 to the vehicle body a-1. (g) is moved up and down, so that the outer jacket (d) seated on the mounting portion (g-2 ') formed on the mounting piece (g-2) (g-3) of the support bracket (g) is upper and lower Will be moved to. Then, the second bracket (e-2) rotatably installed on the first bracket (e-1) of the lower bracket (e) by means of rivets (e-3) moves up and down around the rivet (e-3). The steering shaft (b) rotated and inserted into the second bracket (e-2) and the steering shaft (b) are inserted into the inner diameter, and the inner jacket (c) whose outer diameter is inserted into the outer jacket (d) is simultaneously upper and lower portions. The tilt is adjusted by moving to. At this time, when the adjusting lever (j) is rotated counterclockwise to fasten the fastening bolt (k), the fastening bolt (k) is fastened to the fastening nut (l) is fastened by the fastening bolt (k) of the upper bracket ( h) and the outer jacket (d) inside the support bracket (g) are fixed, the tilt adjustment is completed to improve the steering power of the driver.
    In this state, if a force is applied to the steering shaft (b) at the gear unit due to the impact when the vehicle is impacted, the steering column assembly (a) itself absorbs the shock as a characteristic of the structure by the primary impact and the steering column assembly ( The a) is prevented from jumping out to the driver's side to protect the driver, and then the inertia of the upper bracket (h) to the fastening piece (h-5) of the upper bracket (h-1) by the secondary impact that the driver hits the steering wheel with inertia. The upper bracket h is pushed backward while the plastic of the capsule h-6 filled with the plastic to be fixed in the plastic h is released, thereby releasing the locking of the tilt adjustment structure f. The ends of the vertical pieces (h-3) and (h-4) are caught by the gripping members (g-5) provided on both sides of the support pieces (g-3) and (g-4) of the support bracket (g). h) is prevented from rotating so that the tilt of the steering shaft (b) is deformed It is to protect the driver avoid.
    However, the tilt adjustment structure of the conventional steering column assembly as described above increases the size of the support bracket by forming an anti-rotation member on the support bracket to prevent the upper bracket from rotating in the event of an automobile impact. As the stopper is prevented from being lost, the weight of the steering column assembly itself is increased and the cost is increased.
    The present invention has been made in order to solve such a conventional problem, the present invention is to form a locking hole in the support bracket of the tilt fixing structure of the steering column assembly, the locking member inserted into the locking hole fixed the tilt adjustment structure It is formed in the fastening nut to prevent the upper bracket for supporting the top of the steering column assembly during the impact to protect the driver to reduce the weight of the column itself and to reduce the cost.
    The technical problem of the present invention is a support bracket on which an outer jacket is seated, and an upper bracket into which the support bracket is inserted is fastened by a fastening bolt and a fastening nut, and in the tilt adjustment structure of the steering column assembly, both sides of the support bracket A support piece protruding from the support; A catching hole formed to obliquely pass through the support piece; It is achieved by a fastening nut which is inserted into the engaging hole of the support piece and is fastened to the fastening bolt inserted through the guide hole formed in the vertical piece of the upper bracket to function as a stopper.
    And, the fastening nut is achieved by forming a locking protrusion protruding on one side to be inserted in close contact with the locking hole of the support piece to prevent the rotation of the upper bracket.
    1 is a partial cross-sectional plan view showing the structure of a conventional steering column assembly.
    Figure 2 is an exploded perspective view showing an anti-rotation structure of the upper bracket for tilt adjustment of the conventional steering column assembly.
    Figure 3 is a cross-sectional view showing a structure for preventing rotation of the upper bracket for tilt adjustment of the conventional steering column assembly.
    4 is a state diagram of a conventional steering column assembly.
    Figure 5 is a partial cutaway cross-sectional view showing the structure of the present invention steering column assembly.
    Figure 6 is an exploded perspective view showing an anti-rotation structure of the upper bracket for tilt adjustment of the steering column assembly of the present invention.
    Figure 7 is a cross-sectional view showing an anti-rotation structure of the upper bracket for tilt adjustment of the steering column assembly of the present invention.
    8 is an operational state diagram of the steering column assembly of the present invention.
    <Explanation of symbols for main parts of drawing>
    30: tilt adjustment structure 40: support bracket
    42, 42a: support piece 43: locking hole
    50: upper bracket 52b: guide worker
    70: tightening bolt 80: tightening nut
    81: obstruction
    Hereinafter, the configuration of the present invention with reference to the accompanying drawings.
    Figure 5 is a partial cutaway cross-sectional view showing the structure of the steering column assembly of the present invention, Figure 6 is an exploded perspective view showing an anti-rotation structure of the upper bracket for tilt adjustment of the steering column assembly of the present invention, Figure 7 is a steering column assembly of the present invention FIG. 8 is a plan sectional view showing a tilt adjustment upper bracket anti-rotation structure, and FIG. 8 is an operation state diagram of the steering column assembly of the present invention. 5 to 8, the steering column assembly 1 is divided into a steering shaft 10 and inner and outer jackets 100 and 200.
    The steering shaft 10, the steering wheel (not shown) is installed on the upper portion, the lower end is connected to the gear device not shown.
    The first rotating member 11 is inserted into the lower outer diameter of the steering shaft 10, and the steering shaft is disposed on the lower inner diameter of the inner jacket 50 inserted into the lower bracket 20 by the first rotating member 11. 10) is rotatably inserted.
    The lower bracket 20 is fixed to the vehicle body 2 and can be rotated by a first bracket 21 into which the lower portion of the inner jacket 50 is inserted and a rivet 21a into the first bracket 21. It consists of a second bracket 22 is installed.
    The inner jacket 100 has the steering shaft 10 is inserted into the inner diameter, the lower outer diameter is inserted into the second bracket 22 of the lower bracket 20.
    The outer jacket 200 is inserted into the outer diameter of the inner jacket 100, the outer diameter is provided with a tilt adjustment structure 30 for adjusting the angle of the steering shaft (10).
    In addition, a second rotating member 12 is installed between the inner and outer jackets 100 and 200 to rotate the inner and outer jackets 100 and 200.
    The tilt adjustment structure 30 includes a support bracket 40 on which the outer jacket 200 is seated, and an upper bracket 50 on which the support bracket 40 is inserted and fixed to the vehicle body 2.
    The support bracket 40 includes a seating piece 41, 41a on which the outer jacket 200 is seated, and a support piece 42, 42a formed to face both sides of the seating piece 41, 41a. Is done.
    A fitting hole 43 is formed through the support pieces 42 and 42a of the support bracket 40 so as to correspond to each other, and a locking hole 44 is inclined to the upper part of the fitting hole 43 of the support piece 42a. Is formed. A seating portion 41b on which the outer jacket 200 is seated is formed on the seating pieces 41 and 41a above the support bracket 40.
    The upper bracket 50 has an insertion portion 51 into which the support bracket 40 is inserted, and fitting holes 43 of the support pieces 42 and 42a on both sides of the insertion portion 51. Vertical pieces 52 and 52a having guide holes 52b corresponding thereto are formed, and fastening pieces 53 are formed on upper portions of the vertical pieces 52 and 52a. The fastening piece 53 is fixed to the vehicle body 2 as a capsule 54 filled with plastic.
    Guide hole 52b in which the vertical piece 52 of the upper bracket 50 is formed, and the insertion hole 52b corresponding to the guide hole 52b of the upper bracket 50 and the fitting hole 43 of the support bracket 40. There is provided a control lever 60 is formed.
    The fastening bolt 70 is sequentially inserted through the insertion hole 61 of the adjustment lever 60, the guide slot 52b of the upper bracket 50 and the fitting hole 43 of the support bracket 40, and the fastening. The tilt nut 80 is fastened to the bolt 70 to fix the tilt adjustment structure 30.
    The fastening bolt 70 and the fastening nut 70 are made of a three-pitch type, that is, when the fastening bolt 70 is rotated once, the fastening bolt 70 moves three pitches along the thread of the fastening nut 80. Done.
    The fastening nut 70 is inserted into the guide hole 52b formed in the vertical piece 52a of the upper bracket 50, and the locking hole 44 inclined to the support piece 42a of the support bracket 40. ) And a stopper function to prevent the upper bracket 50 from rotating when an impact occurs.
    Referring to the operation of the present invention configured as described above, as shown in Figure 5, when the driver properly rotates the steering wheel not shown, installed on the steering shaft 10 in accordance with the direction of the vehicle, it is fixed to the vehicle body (2) The steering shaft 10, the lower outer diameter of which is inserted into the inner jacket 100 inserted into the second bracket 22 of the lower bracket 20, is rotated by the first rotating member 11 having the outer diameter of the steering shaft 10. The inner and outer jackets 100 and 200 are rotated by the second rotating member 12 installed between the inner and outer jackets 100 and 200 so that the rotational force is transmitted to a gear device, not shown, to steer the vehicle. It is to be smooth.
    On the other hand, as shown in Figures 6 to 8, in order to adjust the tilt of the steering shaft 10, by rotating the control lever 60 of the tilt adjustment structure 30 in the clockwise direction, the control lever 60 is clockwise And the insertion force is sequentially inserted through the insertion hole 61 of the adjustment lever 60 and the guide slot 52b of the upper bracket 50 and the fitting hole 43 of the support bracket 40 by this rotational force. The fastening bolt 70 fastened with the nut 80 is rotated clockwise.
    At this time, the fastening bolt 70 and the support bracket 40 is a fastening nut (80) inserted into the locking hole (81) in the engaging hole 44 formed in the support piece (42a) is made of a three pitch type fastening bolt ( The fastening force of the 70 is easily released to loosen the fastening force of the steering shaft 10 and the outer jacket 40, and is inserted into the guide hole 52b formed in the vertical piece 52a of the upper bracket 50, and is supported. The locking protrusion 81 of the fastening nut 80 is inserted into the locking hole 44 formed in the support piece 42a of the bracket 40 to prevent the idle lever from turning when the adjustment lever 60 is rotated.
    In such a state, when the steering wheel installed on the steering shaft 10 is properly moved up and down, that is, the tilt is adjusted, the fastening bolt 70 is connected to the vertical pieces 52 and 52a of the upper bracket 50. The support bracket 40 inserted into the insertion part 51 of the upper bracket 50 which is moved up and down along the formed guide hole 52b and is fastened and fixed to the vehicle body 2 as a capsule 54 is By moving up and down, the outer jacket 200 seated on the seating portion 41b of the seating piece 41, 41a is moved up and down. Then, the second bracket 22, which is rotatably installed on the first bracket 21 of the lower bracket 20 by the rivet 21a, is rotated up and down about the rivet 21a, so that the second bracket 22 is rotated. The steering shaft 10 and the steering shaft 10 inserted in the inner diameter and the outer diameter of the inner jacket 100 inserted into the outer jacket 200 are moved up and down at the same time, the tilt is adjusted. At this time, when the adjustment lever 60 is rotated counterclockwise to fasten the fastening bolt 80, the fastening bolt 70 and the fastening nut 80 made of a three-pitch type is fast fastened to the upper bracket ( 50) and the outer jacket 200 inside the support bracket 40 are fixed, thereby completing the tilt adjustment to improve the steering power of the driver.
    In this state, when a force is applied to the steering shaft 10 at the gear unit due to the impact when the vehicle is impacted, the steering column assembly 1 itself absorbs the shock as a characteristic of the structure by the primary impact and the steering column assembly ( 1) protects the driver by preventing it from popping out to the driver's side, and then the plastic that secures the fastening piece 53 of the upper bracket 50 to the vehicle body 2 by the secondary impact that the driver hits the steering wheel with inertia. As the plastic of the filled capsule 53 is broken, the upper bracket 50 is pushed to the rear so that the tilt adjusting structure 30 is unlocked. At this time, the fastening nut 80 of the fastening nut 80 is inserted into the guide hole 52b formed in the vertical piece 52a of the upper bracket 50 and inclined to the support piece 42a of the support bracket 40. The part 81 is tightly inserted to fix the upper bracket 50 by the fixing force, thereby preventing the upper bracket 50 from rotating, thereby preventing the tilt of the steering shaft 10 from being deformed. This protects the driver.
    As described above, according to the tilt adjustment structure of the steering column assembly, a locking hole is formed to be inclined at a support piece on one side of the support bracket into which the outer jacket is seated by being inserted into the upper bracket of the tilt adjustment structure, and the tilt adjustment structure at the locking hole. By tightly inserting the locking protrusion formed on the fastening nut fastened to the fastening bolt to fix the fastener, the upper bracket is prevented from being rotated when the upper bracket is separated from the vehicle body when the impact of the vehicle occurs, thereby protecting the driver and steering column assembly itself. Reducing the weight of the product reduces the cost.
    权利要求:
    Claims (2)
    [1" claim-type="Currently amended] In the tilt adjustment structure of the steering column assembly formed by fastening the support bracket on which the outer jacket is seated, and the upper bracket into which the support bracket is inserted, using a fastening bolt and a fastening nut,
    Support pieces 42 and 42a protruding from both sides of the support bracket 40;
    A catching hole 43 formed to obliquely pass through the support piece 42a; And
    The stopper function is inserted into the engaging hole 43 of the support piece 42a and fastened to the fastening bolt 70 inserted through the guide hole 52b formed in the vertical piece 52a of the upper bracket 50. Tilt adjustment upper bracket rotation prevention structure of the steering column assembly, characterized in that consisting of a fastening nut (80).
    [2" claim-type="Currently amended] The fastening nut (80) of the upper bracket (50) is formed by protruding the locking projections (81) on one side to be in close contact with the locking holes (43) of the support piece (42a). Tilt adjustment upper bracket anti-rotation structure of the steering column assembly, characterized in that to prevent rotation.
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1998-10-30|Application filed by 김태구, 대우자동차 주식회사
    1998-10-30|Priority to KR1019980046125A
    1998-10-30|Priority claimed from KR1019980046125A
    2000-05-15|Publication of KR20000028020A
    2001-12-28|Application granted
    2001-12-28|Publication of KR100312448B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019980046125A|KR100312448B1|1998-10-30|Upper bracket anti-rotation structure for tilt adjustment of steering column assembly|
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