JP2010126142A - Steering column unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a steering column unit allowing a plurality of friction plates to be attached easily and accurately upon attachment of friction members. <P>SOLUTION: On the outside of a wall part 41 of a vehicle body side bracket 4, the first friction member 100 and the second friction member 110 are arranged, and a frame body 200 binding the plurality of friction plates 102 by restraining the outside edges of the first friction member 100 and the second friction member 110, is arranged. In the opposed side parts 200a, 200b of the frame body 200, a plurality of grooves 205 restraining the outside edges 102a, 102b of the respective friction plates 102, are formed, and moreover, a slit 206 for inserting the friction plate of the second friction member 110 is formed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a steering column apparatus that houses a steering shaft capable of tilting and telescopically operating a steering wheel.

  Some steering wheels of automobiles can be tilted up and down to adjust to the driver's physique and telescopic operation to adjust back and forth. The steering column to be accommodated is fixed by a support device that supports the vehicle body side (see, for example, Patent Document 1).

  In this case, the support device includes a body-side bracket having an inverted U-shaped cross section in which left and right side wall portions are disposed so as to sandwich both left and right sides of the steering column, and the steering column is held between the left and right side wall portions thereof. It is supposed to be. At this time, the steering column is relatively movable along the inner surface of the left and right side wall portions of the body side bracket, and a tightening shaft is passed between the left and right side wall portions to operate the tightening shaft. A lever and cam mechanism are provided. Then, by operating the operating lever in the clamping direction, a clamping force is applied between the left and right side walls via the clamping shaft, and the left and right side walls are bent and deformed in the proximity of each other to press the steering column. It is clamped by the frictional force.

In Patent Document 1, when the tightening force of the tightening shaft is transmitted to the left and right side wall portions, it is performed through a friction member (thin plate set) in which a plurality of friction plates (thin plates) are stacked. In a state where a plurality of friction plates are stacked, both ends of the friction member are supported on the steering column side by pins, and an elongated hole through which the tightening shaft is inserted is formed in an intermediate portion. The tightening force of the tightening shaft generates a friction force on the friction member via a pressing plate provided on the tightening shaft, thereby improving the support rigidity of the steering column.
Japanese Patent No. 3939806

  However, in such a conventional steering column device, the friction member is formed by stacking a plurality of friction plates, and when attaching the friction member to the steering column device, the plurality of friction plates are sequentially assembled. .

  For this reason, the friction member is attached in a state in which a plurality of friction plates are temporarily assembled. In this case, the friction plates may be scattered before the attachment, and the friction plates are placed in their normal positions. Therefore, there is a risk that it takes time to install the friction member.

  In addition, since the plurality of friction plates are in a temporarily assembled state, some of the friction plates may not be attached to the normal position, and the steering column may not be clamped as originally designed.

  Therefore, the present invention provides a steering column device capable of easily and accurately assembling a plurality of friction plates when attaching a friction member.

  The invention of claim 1 includes a steering column that accommodates a steering shaft capable of tilting and telescopic operation of the steering wheel so as to be relatively rotatable and relatively movable in the axial direction, and the steering columns are movable in the axial direction with respect to each other. The steering column device has an outer tube and an inner tube that are fitted to each other, and supports both the tubes on the vehicle body side, and includes a side wall portion that is disposed across both sides of the steering column. A vehicle body side bracket that holds the steering column between the inner side surfaces of the side wall portions so as to be relatively movable, and both side wall portions of the vehicle body side bracket are penetrated. Tightening shafts that tighten and release in close proximity to each other, telescopic operation and A first friction member having a state in which a plurality of friction plates extending in one operation direction of the G operation and having the first elongated hole through which the tightening shaft is inserted, and the first elongated hole. The first friction member is attached to the first friction member and includes at least one friction plate having a second long hole through which the fastening shaft extends and extends in the other operation direction of the telescopic operation and the tilt operation. 2 friction members, and a frame body that bundles the plurality of friction plates of the first friction member and the second friction member, and each of the first friction members is disposed on opposite sides of the frame body. A groove for restraining the outer edge of the friction plate is provided, and a slit for inserting the friction plate of the second friction member is provided.

  According to a second aspect of the present invention, in the steering column device according to the first aspect, the groove portion of the frame is formed with a protrusion that opens a space between the friction plates of the first friction member. .

  According to a third aspect of the present invention, in the steering column device according to the first or second aspect, the frame body is detachably divided in the extending direction of the first long hole at the slit forming portion. It is characterized by.

  According to the first aspect of the present invention, since the frame for bundling the plurality of friction plates of the first friction member and the second friction member is provided, the first friction member and the second friction member are temporarily assembled. It is possible to prevent the plurality of friction plates from being scattered when the is attached. Moreover, since the groove part which restrains each friction plate of a 1st friction member was provided in the opposing side part of a frame, and the slit which penetrates the friction plate of a 2nd friction member was formed, 1st friction member and A frame can be attached to the second friction member. Therefore, since both the friction members can be attached in a state where the first friction member and the second friction member are integrally assembled, the workability of assembling the friction members can be improved.

  According to the second aspect of the present invention, the protrusion is formed in the groove of the frame and the friction plates of the first friction member are spaced apart from each other, so that the positional relationship between the plurality of friction plates is appropriate. Can be maintained. Therefore, when attaching the first friction member to the steering column device, the first friction member can be easily and accurately assembled while suppressing the dispersion of the plurality of friction plates.

  According to the invention of claim 3, since the frame body is detachably divided in the extending direction of the first long hole in the slit forming portion, the second friction member is attached to the first friction member. Thus, the frame can be attached to the outer edge of the first friction member, and the workability of attaching the frame can be improved.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  1 to 12 show an embodiment of a steering column device according to the present invention, FIG. 1 is a perspective view of the steering column device, FIG. 2 is a side view of the steering column device viewed from the operation lever side, and FIG. FIG. 4 is an enlarged sectional view taken along line III-III in FIG. FIG. 5 is a perspective view showing an assembled state of the first friction member and the second friction member, and FIG. 6 shows an assembled state of the first friction member and the second friction member from the vehicle port side. FIG. 7 is a rear view of the assembled state of the first friction member and the second friction member as seen from the rear of the vehicle. 8 is a perspective view of the frame, FIG. 9 is a side view of the frame viewed from the vehicle port side, FIG. 10 is a rear view of the frame viewed from the rear of the vehicle, and FIG. 11 is a view of the frame from above. FIG. 12 is an enlarged view of a portion XII in FIG.

  As shown in FIGS. 1 to 3, the steering column device 1 of the present embodiment accommodates a steering shaft 2 (indicated by a two-dot chain line in FIG. 1) capable of tilting and telescopic operation of a steering wheel (not shown). The steering column 3 is supported on the vehicle body side. The steering column 3 has an outer tube 31 and an inner tube 32 which are fitted to each other so as to be movable in the axial direction, and an overlapping portion of the tubes 31 and 32 is supported on the vehicle body side by a vehicle body side bracket 4 which will be described later. .

  The outer tube 31 is disposed on the vehicle rear side where the steering wheel is disposed, and the inner tube 32 is disposed on the vehicle front side where a steering rack and a front suspension (not shown) are disposed, and the rear end of the inner tube 32 is disposed. The front end portion of the outer tube 31 is fitted to the outside of the portion so as to be capable of relative movement in the axial direction.

  The front end portion of the inner tube 31 in the axial direction is connected to the vehicle body via a tilt shaft provided on a lower support bracket (not shown), and the steering column 3 can be rotated up and down as a whole around the tilt shaft. Yes.

  The steering shaft 2 is disposed on the rear side of the vehicle, and has a cylindrical upper shaft 21 to which a steering wheel is attached at the rear end thereof, and a universal joint that is disposed on the front side of the vehicle and not shown at the front end thereof. And a solid lower shaft 22 coupled to the steering gear box. And the front-end part of the upper shaft 21 is spline-fitted to the rear-end part of the lower shaft 22, and both relative movement of the axial direction is possible.

  Therefore, the telescopic adjustment of the steering wheel can be performed by the axial relative movement of the upper shaft 21 and the lower shaft 22 of the steering shaft 2 and the axial relative movement of the outer tube 31 and the inner tube 32 of the steering column 3. Further, the steering wheel tilt can be adjusted by rotating the steering column 3 around the tilt axis.

  The steering column device 1 includes a vehicle body side bracket 4 having an inverted U-shaped cross section having side wall portions 41, 42 disposed across the left and right sides of the above-described overlapping portion of the steering column 3, and the left and right side wall portions 41, Between the inner side of 42 and the outer side of the outer tube 31, there is provided a distance bracket 5 having a U-shaped cross section which is disposed so as to be relatively movable with respect to the vehicle body side bracket 4.

  The vehicle body side bracket 4 is formed in an overall U-shaped cross section by connecting the upper ends of the left and right left and right side wall portions 41, 42 with the upper plate 43, and is fixed to the upper surface of the upper plate 43. It is coupled to a steering member (not shown) on the vehicle body side via a flange portion 44.

  The distance bracket 5 includes left and right vertical wall portions 51 and 52 that are in surface contact with the inside of the left and right wall portions 41 and 42, respectively, and a lower wall portion that connects lower end portions of the left and right vertical wall portions 51 and 52 to each other. 53, the outer tube 31 is fixed and held between the upper end portions of the left and right vertical wall portions 51 and 52 by welding or the like.

  Tilt long holes 41a and 42a extending in the vertical direction are provided in the left and right wall portions 41 and 42 of the vehicle body side bracket 4, and the left and right vertical wall portions 51 and 52 of the distance bracket 5 are provided for tilting. Telescopic long holes 51a and 52a extending in the front-rear direction so as to face the long holes 41a and 42a are provided.

  The long tilt holes 41a and 42a extend in the vertical direction with an arc shape having a large radius of curvature around a tilt axis (described later) provided in the steering column 3, and allow the steering wheel to be tilted. The telescopic elongated holes 51a and 52a extend linearly in the direction of the central axis of the steering column 3, and allow a telescopic operation of the steering wheel.

  Further, the steering column device 1 includes a clamp bolt 6 as a tightening shaft that is inserted into the tilt long holes 41 a and 42 a and the telescopic long holes 51 a and 52 a, and the clamp bolt 6 and one side of the vehicle body side bracket 4. A cam portion 8 disposed between the left side wall portion 41 and the left side wall portion 41 to press or release the left and right side wall portions 41 and 42 of the vehicle body side bracket 4 in the proximity direction by operating the operation lever 7; I have. The operating lever 7 includes a mounting portion 71, an arm portion 72 protruding from the mounting portion 71, and an operating portion 73 provided at the distal end portion of the arm portion 72.

  As shown in FIG. 3, the clamp bolt 6 has a head 61 at one end (left end in FIG. 3) and a threaded portion 62 at the other end (right end in FIG. 3). The head 61 of the clamp bolt 6 is formed with a hexagonal hole 61a (see FIG. 1) in the outer central portion, and a nut 63 is screwed into a screw portion 62 protruding from the right side wall portion. The left and right side wall portions 41 and 42 of the vehicle body side bracket 4 and the distance bracket 5 are sandwiched between the head portion 61 and the nut 63. Further, a sliding washer 64 and a thrust bearing 65 are interposed between the right side wall portion 42 and the nut 63, and the boss portion 64a of the sliding washer 64 has a tilt slot 42a and a telescopic slot. It is fitted to 52a so as to be relatively movable and prevented from rotating.

  The cam portion 8 includes a fixed cam member 81 and a movable cam member 82 that are disposed between one (left side) side wall portion 41 and the operation lever 7. The fixed cam member 81 has a boss portion 81a fitted in the long slot for tilt 41a and the long slot for telescopic 51a so as to be relatively movable and prevented from rotating. The movable cam member 82 is fitted with the boss portion 82 a being prevented from rotating in the mounting hole 71 a of the operation lever 7. A cam main body that increases or decreases the distance between the cam members 81 and 82 is formed on the opposing surfaces of the fixed cam member 81 and the movable cam member 82 by rotating the operation lever 7 in the clamping direction or the unclamping direction. Has been.

  The operation lever 7 is in the clamped state as shown in FIG. 2, and the operation lever 7 is rotated in the clockwise direction in the figure from the clamped state to be in an unclamped state, that is, a state in which the clamped state is released. In the cam portion 8, the distance between the cam members 81 and 82 increases in the clamped state, and a clamping force acts on the clamp bolt 6, while the distance between the cam members 81 and 82 decreases in the unclamped state. The clamping force of the clamp bolt 6 is reduced or eliminated.

  Between the left and right vertical wall portions 51 and 52 of the distance bracket 5, an eccentric cam 9 in which the boss portion 91 is fitted to the outer periphery of the clamp bolt 6 is disposed. The eccentric cam 9 includes an eccentric cam main body 92 formed at the center in the length direction of the boss 91, and the cam main body 92 is inserted from an opening 31a formed in the outer tube 31, and its cam surface 92a. Is in contact with the outside of the inner tube 32. At this time, the boss portion 91 of the eccentric cam 9 is spline-fitted to the outer periphery of the clamp bolt 6, and the eccentric cam 9 and the clamp bolt 6 are rotated together. Of course, the cam main body 92 has a protruding amount that increases in the rotational direction in the clamping direction (clamping direction) of the clamp bolt 6, and the inner tube 32 is connected to the inner surface of the outer tube 31 at the clamping operation position of the operation lever 7. It is designed to be pressed against the top.

  Further, the length of the boss 91 of the eccentric cam 9 in the axial direction (left-right direction in FIG. 3) is substantially equal to the distance between the left and right vertical wall portions 51 and 52 of the distance bracket 5 and clamp bolts. 6 also prevents the left and right vertical wall portions 51 and 52 from being bent and deformed in the proximity direction. As a result, when the left and right wall portions 41 and 42 of the vehicle body side bracket 4 are pressed in the proximity direction by the tightening force acting on the clamp bolt 6, the left and right wall portions 41 and 42 and the left and right vertical wall portions are The pressure contact force with 51 and 52 is increased, and the clamping force of the distance bracket 5 by the vehicle body side bracket 4, that is, the fixing force of the steering column 3 is increased.

  Further, in the present embodiment, as shown in FIG. 3, the first friction members 100 and 101 that are tightened by the tightening force of the clamp bolt 6 are disposed outside the left and right side wall portions 41 and 42 of the vehicle body side bracket 4. I'm allowed. In the present embodiment, one friction member 100 on the side where the operation lever 7 is disposed is disposed between the side wall portion 41 and the fixed cam member 81 on which the clamping force of the clamp bolt 6 acts, and on the opposite side. The other friction member 101 to be disposed is disposed between the side wall portion 42 and the sliding washer 64.

  The first friction members 100 and 101 will be described below by taking an example of one first friction member 100 as shown in FIGS. The first friction member 100 is configured by stacking a plurality of friction plates 102 made of thin plates. The first friction member 100 has a shape extending in the axial direction of the steering column 3 with a predetermined width, and a collar 103 penetrating each friction plate 102 is attached to a front end portion thereof. The collar 103 bundles one end of the thin plate. In addition, a first elongated hole 104 is formed at the center in the width direction of the first friction member 100 so as to extend in the axial direction of the steering column 3, that is, in the telescopic operation direction, and through which the clamp bolt 6 is inserted.

  The other first friction member 101 is formed in the same shape as the above-described one first friction member 100, although not shown, and is configured by overlapping a plurality of friction plates 102, and the front end. The collar 103 is attached to the part, and the first long hole 104 is formed. In the unclamped state, a certain gap is provided between the adjacent friction plates 102.

  As shown in FIG. 2, the collar 103 of the pair of left and right friction members 100 and 101 extends over the extended portions 51b and 52b in which the left and right vertical wall portions 51 and 52 of the distance bracket 5 are extended forward of the vehicle. The friction members 100 and 101 are attached to the support pins 106 by being inserted through the attached support pins 106.

  The first friction members 100 and 101 are second plates made of a thin plate having second elongated holes 112 that extend in the tilting operation direction across the first elongated holes 104 and into which the clamp bolts 6 are inserted. Friction members 110 and 111 are attached. The second friction members 110 and 111 are formed of a single friction plate 113, have a shape that extends in a substantially vertical direction with a predetermined width, and a collar 114 is attached to the lower end thereof. The second long hole 112 described above is formed in the center of the friction plate 113 in the width direction.

  The second friction members 110 and 111 are each formed with the same shape, and the respective collars 114 are formed at the lower end portions of the left and right side wall portions 41 and 42 of the vehicle body side bracket 4 as shown in FIGS. The friction members 110 and 111 are attached to the support pins 115 through the support pins 115 attached to the support pins 115.

  Therefore, the first friction members 100 and 101 and the second friction members 110 and 111 cross each other so as to form a substantially cross shape, and are joined together so that the friction plates of the second friction members 110 and 111 are combined. 113 is inserted in the middle of the plurality of friction plates 102 on which the first friction members 100 and 101 are stacked. For example, in the present embodiment, as shown in FIG. 4, the first friction members 100 and 101 are each formed by two friction plates 102, and the second friction members 110 and 111 are one friction plate 113. However, the friction plates 113 of the second friction members 110 and 111 are disposed in a state of being sandwiched between the two friction plates 112 of the first friction members 100 and 101.

  Here, in the present embodiment, as shown in FIGS. 3 to 7, the first friction member 100, 101 of the pair of left and right first friction members has the first friction on the side where the operation lever 7 is disposed. A frame body 200 is provided that binds the plurality of friction plates 102 by restraining the outer edge of the member 100.

  As shown in FIGS. 8 and 9, the frame body 200 is formed as a substantially rectangular frame structure as a whole, and the substantially rectangular opening 202 formed at the center thereof has a rectangular structure shown in FIGS. As shown in FIG. 6, a fixed cam member 81 is fitted and arranged.

  Then, as shown in FIGS. 8 to 11, on the opposite sides of the frame body 200 (in this embodiment, the upper and lower opposite sides 200 a and 200 b), in the back direction of the frame body 200 (to the right in FIG. 10). Thick upper and lower shelves 203 and 204 are provided so that the upper and lower outer peripheral edges of the first friction member 100 are constrained between the upper and lower shelves 203 and 204.

  Specifically, the groove portions 205 are formed in the facing surfaces 203a and 204a of the upper and lower shelf portions 203 and 204, respectively, and two protrusions 201 are provided at predetermined intervals in the groove portions 205 of the facing surfaces 203a and 204a. The upper and lower outer edges 102a and 102b (see FIG. 6) of the friction plate 102 are slidably inserted between the protrusions 201, and the plurality of friction plates 102 are bundled on the frame body 200. . Of course, the upper and lower outer edges 102a, 102b of the friction plate 102 are formed in parallel.

  In the present embodiment, the frame 200 described above is formed with a slit 206 through which the friction plate 113 of the second friction member 110 attached to the first friction member 100 is inserted. The slit 206 is formed in the groove 205 described above and penetrates the upper and lower shelves 203 and 204 vertically.

  Furthermore, the frame body 200 is detachably divided in the extending direction of the first long hole 104, that is, the telescopic operation direction, in the above-described slit 206 forming portion. That is, a crank-shaped divided portion 207 that divides the frame body 200 into two is formed at substantially the center in the length direction (front-rear direction) of the upper and lower opposing side portions 200a, 200b of the frame body 200. At this time, as shown in FIG. 9, opposed surfaces 207 a and 207 b along the length direction of the opposed side portions 200 a and 200 b are formed in the central portion of the split portion 207 formed in a crank shape. Between the surfaces 207a and 207b, there is provided an engaging portion 208 composed of a detachable convex portion 208a and a concave portion 208b.

  Therefore, when assembling the frame body 200 to the first friction member 100, first, the frame body 200 is divided from the dividing portion 207, and the front and rear divided portions 200F and 200R of the divided frame body 200 are obtained (see FIG. 8). Are arranged in the front-rear direction of the first friction member 100 and the second friction member 110 combined in a cross shape. Then, the upper and lower outer edge portions 102a and 102b of the friction plate 102 are inserted into the grooves 205 of the upper and lower shelf portions 203 and 204 of the front and rear divided portions 200F and 200R, and the front and rear divided portions 200F and 200R are slid in the proximity direction. Let At this time, the friction plate 113 is inserted into the slit 206. Then, by finally abutting the front and rear divided portions 200F and 200R, the protrusion 208a and the recess 208b of the engaging portion 208 provided in the divided portion 207 are engaged with each other so that the front and rear divided portions 200F and 200R are combined. Frame 200.

  In the state where the frame body 200 is attached in this way, the first friction member 100 and the second friction member 200 are sub-assembled, and the collar 103 of the first friction member 100 is attached to the support pin 106 in this sub-assembly state. At the same time, the collar 114 of the second friction member 200 is attached to the support pin 115. After that, as shown in FIGS. 5 and 6, the fixed cam member 81 is fitted into the central opening 202 of the frame body 200, while the attachment portion 71 of the operation lever 7 and the movable cam member 82 as shown in FIG. 3. Then, the clamp bolt 6 inserted into the hole is inserted into the hole 81 a of the fixed cam member 81. The clamp bolt 6 inserted into the fixed cam member 81 is inserted into the first long hole 104 and the second long hole 112.

  In addition, the clamp bolt 6 inserted through the first friction member 100 and the second friction member 110 sub-assembled in this way, as shown in FIG. The telescopic elongated holes 51a and 52a of the bracket 5 and the eccentric cam 9 are inserted, and the first friction member 101 and the second friction member 201 on the opposite side are inserted. Then, after the sliding washer 64 and the thrust bearing 65 are inserted into the distal end portion of the clamp bolt 6, the nut 63 is screwed and fastened to the screw portion 62, and the assembly is completed.

  As shown in FIGS. 2 and 3, the steering column device 1 that has been assembled in this manner has a clamping force applied to the clamp bolt 6 by the cam portion 8 when the operation lever 7 is clamped. The first friction members 100 and 101 and the second friction members 110 and 111 are input to the left and right side wall portions 41 and 42 of the vehicle body side bracket 4 via the first friction members 100 and 101 and the second friction members 110 and 111. That is, the tightening force is transmitted in a state where the friction plates 113 of the second friction members 110 and 111 are sandwiched between the two friction plates 102 of the first friction members 100 and 101. As a result, the left and right side wall portions 41 and 42 are increased in pressure contact force with the left and right vertical wall portions 51 and 52 of the distance bracket 5 that is prevented from being bent by the boss portion 91 of the eccentric cam 9. 5 can be fixed to the vehicle body side. At this time, the first friction members 100 and 101 increase the frictional force in the telescopic direction, and the second friction members 110 and 111 increase the frictional force in the tilt direction. Support rigidity is improved.

  On the other hand, the clamp bolt 6 is rotated by the operation of the operation lever 7 in the clamping direction, and the eccentric cam 9 is rotated by the rotation, and the cam main body 92 presses the inner tube 32 against the inner surface of the outer tube 31. It can be fixed to the outer tube 31.

  In this manner, the inner tube 32 is fixed to the outer tube 31 and the outer tube 31 is fixed to the vehicle body side bracket 4, whereby the steering column 3 is in a clamped state, and the steering wheel tilt direction and telescopic direction are changed. The position can be fixed at the adjusted position.

  Further, when the operation lever 7 is operated in the unclamping direction, the clamping force of the clamp bolt 6 is removed by the cam portion 8, so that the left and right side wall portions 41, 42 of the vehicle body side bracket 4 and the distance bracket 5 are The pressure contact force between the left and right vertical wall portions 51 and 52 is removed, and the pressure contact force between the first friction members 100 and 101 and the second friction members 110 and 111 is eliminated, and the friction plate 102 and the friction plate 113 are interposed. There is a gap. At the same time, since the pressing force of the inner tube 32 by the eccentric cam 9 is removed, the pressure contact force between the inner tube 32 and the outer tube 31 is removed. As a result, tilt adjustment and telescopic adjustment of the steering wheel are possible, and after adjusting the steering wheel to a desired position, the adjustment lever 7 is operated to the clamp position described above.

  According to the present embodiment described above, the first friction member 100 and the second friction member 110 are provided with the frame body 200 so that the plurality of friction plates 102 and 113 are bundled. And when attaching the 2nd friction member 110, it can suppress that the some friction plates 102 and 113 spread. In addition, a plurality of protrusions 201 that fit the outer edge portions 102 a and 102 b of the friction plates 102 are formed on the opposing side portions 200 a and 200 b of the frame body 200 so that a certain interval is provided between the adjacent friction plates 102. Therefore, the positional relationship between the plurality of friction plates 102 can be properly maintained. Therefore, when attaching the first friction member 100 to the steering column device 1, the first friction member 100 can be easily and accurately assembled while suppressing the dispersion of the plurality of friction plates 102.

  In addition, by forming the plurality of protrusions 201 on the opposite side portions 200a and 200b of the frame body 200, it is possible to suppress the adjacent friction plates 102 from coming into contact with each other in the unclamped state. Position adjustment in the tilt direction and telescopic direction can be performed more smoothly.

  Moreover, since the slit 206 which penetrates the friction plate of the 2nd friction member 110 arrange | positioned crossing the 1st friction member 100 in the frame 200 was formed, the 1st friction member 100 and the 2nd friction The member 110 can be attached to the frame body 200.

  Furthermore, since the frame body 200 is detachably divided in the extending direction of the first long hole 104 in the formation part of the slit 206, the second friction member 110 is attached to the first friction member 100. The frame body 200 can be attached to the outer edge portion of the first friction member 100, and the attachment workability of the frame body 200 can be improved.

  By the way, although the steering column apparatus 1 of the present invention has been described by taking the above-described embodiment as an example, the present invention is not limited to this embodiment, and various other embodiments can be adopted without departing from the gist of the present invention. . For example, in the present embodiment, the case where the frame body 200 is attached to the first friction member 100 on the arrangement side of the operation lever 7 is shown, but the present invention is not limited to this, and the first friction member 101 on the opposite side is also included. The frame body 200 can be attached.

  Further, the first friction members 100 and 101 have a shape that extends in the telescopic operation direction together with the first long hole 104, and the second friction members 110 and 111 have a shape that extends in the tilt operation direction together with the second long hole 112. However, when they are formed as shapes extending in opposite directions, that is, when the first friction members 100 and 101 are used for tilt operation and the second friction members 110 and 111 are used for telescopic operation. The invention can be applied. In the present embodiment, the number of the friction plates 113 of the second friction members 110 and 111 is one, but a plurality of friction plates 113 can be provided by increasing the number of slits 206 of the frame body 200.

  It should be noted that the present invention can be implemented even if the frame body 200 is integrally formed or the protrusion 201 is not provided in the groove 205.

1 is a perspective view of a steering column device according to an embodiment of the present invention. It is the side view which looked at the steering column apparatus concerning one Embodiment of this invention from the operation lever side. FIG. 3 is an enlarged sectional view taken along line III-III in FIG. 2. It is an expanded sectional view of IV section in FIG. It is a perspective view which shows the assembly | attachment state of the 1st friction member and 2nd friction member concerning one Embodiment of this invention. It is the side view which looked at the assembly state of the 1st friction member concerning one embodiment of the present invention, and the 2nd friction member from the vehicle port side. It is the rear view which looked at the assembly state of the 1st friction member concerning one embodiment of the present invention, and the 2nd friction member from the vehicles back. It is a perspective view of the frame concerning one embodiment of the present invention. It is the side view which looked at the frame concerning one embodiment of the present invention from the vehicle port side. It is the rear view which looked at the frame concerning one embodiment of the present invention from the vehicles back. It is the top view which looked at the frame concerning one embodiment of the present invention from the upper part. It is an enlarged view of the XII part in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Steering column apparatus 2 Steering shaft 3 Steering column 31 Outer tube 32 Inner tube 4 Car body side bracket 41, 42 Side wall part 6 Clamp bolt (tightening axis)
7 Operation levers 100 and 101 First friction member 102 Friction plates 102a and 102b of the first friction member Outer edge portions of the friction plates 104 First long holes 110 and 111 Second friction members 112 Second long holes 113 Friction plate of second friction member 200 Frame 200a, 200b Opposite side 201 Protrusion 205 Groove 206 Slit

Claims (3)

An outer tube that includes a steering column that accommodates a steering shaft capable of tilting and telescopic operation of the steering wheel so as to be relatively rotatable and relatively movable in the axial direction, and the steering columns are fitted so as to be movable in the axial direction. And an inner tube, and a steering column device that supports both the tubes on the vehicle body side,
A vehicle body side bracket having side wall portions arranged across both sides of the steering column, and holding the steering column between the side wall portions so as to be relatively movable along inner side surfaces of the side wall portions;
A tightening shaft that penetrates both side wall portions of the vehicle body side bracket and tightens and releases the both side wall portions in proximity to each other by operation of an operation lever;
A first friction member having a state in which a plurality of friction plates extending in one operation direction of a telescopic operation and a tilt operation and having a first long hole through which the tightening shaft is inserted are stacked;
It comprises at least one friction plate having a second elongated hole through which the fastening shaft extends and extends in the other operation direction of the telescopic operation and the tilting operation, intersecting the first elongated hole. A second friction member attached to the friction member;
A frame for bundling a plurality of the friction plates of the first friction member and the second friction member,
The opposite side of the frame is provided with a groove for restraining the outer edge of each friction plate of the first friction member and a slit for inserting the friction plate of the second friction member. Steering column device.   2. The steering column device according to claim 1, wherein a protrusion that opens a gap between the friction plates of the first friction member is formed in the groove portion of the frame body.   3. The steering column device according to claim 1, wherein the frame body is detachably divided in the extending direction of the first long hole at a portion where the slit is formed. 4.

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