JP2007302098A - Steering member fitting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide steering member fitting structure capable of surely welding a nut base. <P>SOLUTION: In the steering member fitting structure for fitting an end of a steering member 5 to a side panel 1a provided in both sides of a car body 1 through an adjust means 7, the nut base 8 of the adjust means is formed of a cylindrical part 8a and a flange part 8b projected on one end side of the cylindrical part. An under-cut part 8e is formed in a connection part 8d between the cylindrical part and the flange part so as to prevent a contact of the connection part 8d with an opening edge of a fitting hole 5c when welding an electrifying projection 8f projected in the flange part to an end of the steering member in the state that the cylindrical part is fitted in the fitting hole 5a formed in the end of the steering member. Since shunt current is not generated in the welding current, each of the electrifying projection and a member bracket can be evenly and surely welded to each other. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a mounting structure for a steering member that supports a steering shaft to which a steering wheel is mounted.

  Conventionally, a steering wheel provided in a vehicle such as an automobile is attached to an upper end portion of a steering shaft supported by a steering member.

  As shown in FIG. 8, the steering member a that supports the steering shaft is installed substantially horizontally in the vehicle width direction of the vehicle body b, and a bracket c provided on one end side is attached to a driver's seat (not shown) by a fixture d. ) Side panel e.

  Further, when the steering member a is assembled to the vehicle body b, an adjusting means f is provided on the other end side of the steering member a to absorb the dimensional variation between the left and right side panels e, and the driver seat side end portion is used as a reference. The length of the steering member a is adjusted by the adjusting means f, and the steering member a is mounted substantially horizontally between the left and right side panels e.

  The adjusting means f for adjusting the length of the steering member a has a nut base i welded to a member bracket g fixed to the other end of the steering member a as shown in FIG. An adjustment nut j is screwed to the adjustment nut j, and the adjustment bolt j is inserted into the adjustment bolt j inserted from the side panel e of the passenger seat (not shown) in a state in which the dimensional variation between the left and right side panels e is adjusted. The other end side of the steering member a is attached to the passenger side side panel e (see, for example, Patent Document 1).

  On the other hand, the member bracket g fixed to the other end side of the steering member a is provided with a plurality of mounting holes m, and the cylindrical portion n of the nut base i is formed in these mounting holes m as shown in FIG. In the engaged state, the flange portion o of the nut base i is welded to the member bracket g, and the flange portion o has a plurality of current-projecting projections p on the surface facing the member bracket g at equal intervals in the circumferential direction. Projected.

Then, when these energizing protrusions p are in contact with the member bracket g, the electrodes q ₁ and q ₂ of the welding machine are in contact with the flange portion o, and a welding current is applied between the nut base i and the member bracket g. A welding current flows through the contact portion between the protrusion p and the member bracket g to melt the energizing protrusion p, and thereby the flange portion o of the nut base i is projection welded to the member bracket g.
Japanese Patent Laid-Open No. 2003-300485

  The nut base i welded to the member bracket g of the steering member a is usually formed with an R at the connecting portion of the cylindrical portion n and the flange portion o as shown in FIG. 10 in order to avoid stress concentration. .

  The mounting hole m drilled in the member bracket g has a small diameter within a range in which the tubular portion n of the nut base i can be fitted, thereby improving the mounting position accuracy of the nut base i with respect to the member bracket q. If the inner diameter of the mounting hole m is made small, the R portion of the nut base i interferes with the inner peripheral edge of the mounting hole m, and a gap is generated between the energizing protrusion p and the member bracket g. The inner diameter of the hole m is determined at the position of the R stop r of the nut base i.

  However, when the inner diameter of the mounting hole m is set at the position of the R stop r of the nut base i, the inner diameter of the mounting hole m becomes too large with respect to the cylindrical part n, so that the cylindrical part n of the nut base i is attached to the member bracket. When fitting in the mounting hole m of g, a part of R of the nut base i may ride on the opening edge of the mounting hole m as shown in FIG. Is inclined at an angle θ.

  If welding is performed in this state, the welding current flows in a divided manner to the portion s that rides on the opening edge of the mounting hole m, and a sufficient welding current does not flow in the contact portion between the current-carrying protrusion p and the member bracket g. There is a problem that becomes insufficient and causes welding defects.

  The present invention has been made to remedy such a problem, and an object of the present invention is to provide a steering member mounting structure that can reliably weld a nut base by preventing a welding current from being shunted. To do.

  In the steering member mounting structure of the present invention, one end side of a steering member that supports a steering shaft is attached to one side panel provided on both sides of a vehicle body, and the other end of the steering member is welded to the other side panel. A steering member mounting structure in which the other end side of the steering member is mounted via an adjusting means including a nut base and an adjusting nut screwed into the nut base, the nut base being a cylindrical portion and the cylindrical shape The power supply protrusion protruding from the flange portion is steered in a state in which the cylindrical portion is fitted into the mounting hole formed at the other end of the steering member. When electric welding is performed to the other end of the member, the connecting portion of the tubular portion and the flange portion does not contact the opening edge of the mounting hole. As it is obtained by forming an undercut portion in the connecting portion.

  With the above configuration, when the cylindrical portion of the nut base is fitted into the mounting hole of the steering member, a part of the continuous portion is opened by the undercut formed in the continuous portion of the cylindrical portion and the flange portion. Since there is no contact with the edge, a plurality of energizing protrusions projecting from the flange portion can be brought into contact with the member bracket evenly, so that the central axis of the nut base does not tilt, and at the same time, the welding current Therefore, the current-carrying projections and the member brackets can be welded uniformly and sufficiently, and the conventional welding failure does not occur.

  In addition, since the inner diameter of the mounting hole drilled in the member bracket can be reduced, the cylindrical portion is positioned by the mounting hole to improve the accuracy of the nut base mounting position, thereby adjusting the mounting hole on the side plate side. Since the position of the nut does not shift and the central axis of the nut base is not inclined and welded to the steering member, the workability when the steering member is assembled is improved.

  In the steering member mounting structure of the present invention, one end side of a steering member that supports a steering shaft is attached to one side panel provided on both sides of a vehicle body, and the other end of the steering member is welded to the other side panel. A steering member mounting structure in which the other end side of the steering member is mounted via an adjusting means including a nut base and an adjusting nut screwed into the nut base, the nut base being a cylindrical portion and the cylindrical shape The power supply protrusion protruding from the flange portion is steered with the flange portion protruding from the one end side of the portion and the cylindrical portion fitted in the mounting hole formed at the other end of the steering member. When electric welding is performed on the other end of the member, R formed on the connecting portion between the cylindrical portion and the flange portion is the attachment hole. So as not to contact the rim, it is obtained by forming the embossed portion in the opening edge of the mounting hole.

  With the above configuration, when the cylindrical portion of the nut base is fitted into the mounting hole of the steering member, the R portion formed in the connecting portion of the cylindrical portion and the flange portion does not contact the opening edge of the mounting hole. Therefore, a plurality of energizing protrusions projecting from the flange portion can be uniformly brought into contact with the member bracket, whereby the central axis of the nut base does not tilt and at the same time, a shunt current is generated in the welding current. Therefore, the current-carrying protrusions and the member brackets can be welded uniformly and sufficiently, and no conventional welding failure occurs.

  In addition, since the inner diameter of the mounting hole drilled in the member bracket can be reduced, the cylindrical portion is positioned by the mounting hole to improve the accuracy of the nut base mounting position, thereby adjusting the mounting hole on the side plate side. Since the position of the nut does not shift and the central axis of the nut base is not inclined and welded to the steering member, the workability when the steering member is assembled is improved.

  In the steering member mounting structure of the present invention, one end side of a steering member that supports a steering shaft is attached to one side panel provided on both sides of a vehicle body, and the other end of the steering member is welded to the other side panel. A steering member mounting structure in which the other end side of the steering member is mounted via an adjusting means including a nut base and an adjusting nut screwed into the nut base, the nut base being a cylindrical portion and the cylindrical shape The power supply protrusion protruding from the flange portion is steered with the flange portion protruding from the one end side of the portion and the cylindrical portion fitted in the mounting hole formed at the other end of the steering member. When electric welding is performed on the other end of the member, R formed on the connecting portion between the cylindrical portion and the flange portion is the attachment hole. So as not to contact the rim, it is obtained by forming a burring portion on the opening edge of the mounting hole.

  With the above configuration, when the cylindrical portion of the nut base is fitted into the mounting hole of the steering member, the R portion formed in the connecting portion of the cylindrical portion and the flange portion does not contact the opening edge of the mounting hole. Therefore, a plurality of energizing protrusions projecting from the flange portion can be uniformly brought into contact with the member bracket, whereby the central axis of the nut base does not tilt and at the same time, a shunt current is generated in the welding current. Therefore, the current-carrying protrusions and the member brackets can be welded uniformly and sufficiently, and no conventional welding failure occurs.

  In addition, since the inner diameter of the mounting hole drilled in the member bracket can be reduced, the cylindrical portion is positioned by the mounting hole to improve the accuracy of the nut base mounting position, thereby adjusting the mounting hole on the side plate side. Since the position of the nut does not shift and the central axis of the nut base is not inclined and welded to the steering member, the workability when the steering member is assembled is improved.

  In the steering member mounting structure of the present invention, one end side of a steering member that supports a steering shaft is attached to one side panel provided on both sides of a vehicle body, and the other end of the steering member is welded to the other side panel. A steering member mounting structure in which the other end side of the steering member is mounted via an adjusting means including a nut base and an adjusting nut screwed to the nut base, the nut base being a cylindrical portion and the cylindrical shape When the flange is electrically welded to the other end of the steering member, an R formed on the connecting portion of the tubular portion and the flange is attached. Do not pass the cylindrical part through the mounting hole so that the energizing protrusion protruding from the flange part does not touch the opening edge of the hole. It is obtained by electric welding to the other end of the Ngumenba.

  With the above configuration, since the R portion formed in the cylindrical portion of the nut base and the connecting portion of the flange portion does not come into contact with the opening edge of the mounting hole, a plurality of current-projecting protrusions protruding from the flange portion are uniform. This prevents the central axis of the nut base from being tilted, and at the same time, no shunting is generated in the welding current. Can be welded to each other, and the conventional welding failure does not occur.

  Moreover, since the central axis of the nut base is not inclined and welded to the steering member, the workability when the steering member is assembled is improved.

  According to the steering member mounting structure of the present invention, when the cylindrical portion of the nut base is fitted into the mounting hole of the steering member, the connecting portion of the cylindrical portion and the flange portion contacts the opening edge of the mounting hole. Therefore, a plurality of current-projecting protrusions projecting from the flange portion can be brought into contact with the member bracket uniformly. This prevents the central axis of the nut base from being tilted, and at the same time a shunt current is generated in the welding current. Therefore, welding between each energizing protrusion and the member bracket can be performed uniformly and reliably.

  In addition, since the inner diameter of the mounting hole drilled in the member bracket can be reduced, the tubular portion is positioned by the mounting hole to improve the accuracy of the nut base mounting position, and the center axis of the nut base is tilted to tilt the steering member. Therefore, workability when assembling the steering member is improved.

  Embodiments of the present invention will be described in detail with reference to the drawings.

  1 is a front view of a steering member attached to a vehicle body, FIG. 2 is an enlarged sectional view in a circle A of FIG. 1, FIG. 3 is an enlarged sectional view in a state where a nut base is welded to a member bracket, and FIGS. FIG. 9 is an explanatory view showing a modification of the nut base attaching portion.

  A vehicle body 1 such as an automobile shown in FIG. 1 is provided with side panels 1 a on the left and right sides, and a front pillar 1 b that extends upward from the side panel 1 a is disposed at the front of a roof 1 c that covers the upper side of the passenger compartment 2. It is connected continuously.

  In front of a driver's seat (not shown) installed in the passenger compartment 2, a steering shaft 4 having a steering wheel 3 attached to the upper end portion is provided in the vertical direction, and the upper end side of the steering shaft 4 is It is supported by a steering member 5 that is horizontally mounted between the left and right side panels 1a.

  The steering member 5 is installed almost horizontally in the vehicle width direction, and has a driver seat side having a larger diameter and a passenger seat (not shown) having a smaller diameter than the center, and is provided on one end side. A bracket 5 a is fixed to the side panel 1 a on the driver's seat side by a fixing tool 6.

  The other end side of the steering member 5 is attached to the side panel 1a on the passenger seat side through adjusting means 7 that absorbs the dimensional variation between the left and right side panels 1a.

  As shown in FIG. 2, the adjusting means 7 includes a nut base 8 welded to a member bracket 5 b provided at the other end of the steering member 5, and an adjusting nut 9 screwed into the nut base 8.

  In the nut base 8, a cylindrical portion 8a and a flange portion 8b projecting from one end of the cylindrical portion 8a are integrally formed of metal, and a screw portion 8c is formed on the inner peripheral surface of the cylindrical portion 8a. Has been.

  And the undercut part 8e is cyclically | annularly formed in the connection part 8d of the cylindrical part 8a and the flange part 8b along the outer periphery of the cylindrical part 8a.

  The undercut portion 8e is formed on the flange portion 8b side so as not to bite into the tubular portion 8a side, and has a small cross section so that stress is not concentrated on the connecting portion 8d of the tubular portion 8a and the flange portion 8b. On the surface of the flange portion 8b facing the side panel 1a, a plurality of, for example, three projecting protrusions 8f are provided at intervals in the circumferential direction.

  As shown in FIG. 4, these energizing protrusions 8f are formed by, for example, linear protrusions substantially parallel to the tangent to the outer peripheral surface of the flange portion 8b, and the cylindrical portion 8a of the nut base 8 is attached to the member bracket 5b. When fitted into the hole 5b, it is brought into contact with the outer surface of the member bracket 5b.

  A plurality of attachment holes 5c in the member bracket 5b are formed in the member bracket 5b, and the inner diameter of each attachment hole 5c is slightly larger than the outer diameter of the cylindrical portion 8a.

  On the other hand, the adjusting nut 9 of the adjusting means 7 is formed by integrally forming a cylindrical portion 9a having a smaller diameter than the cylindrical portion 8a of the nut base 8 and a flange portion 9b protruding from one end of the cylindrical portion 9a. Yes.

  A threaded portion 9c is formed on the outer peripheral surface of the tubular portion 9a, and this threaded portion 9c is screwed to a threaded portion 8c formed on the inner surface of the tubular portion 8a of the nut base 8, so that the tubular portion 9a. A threaded portion 9d is also formed on the inner peripheral surface of the inner peripheral surface, and a mounting bolt 10 inserted from the side panel 1a on the passenger seat side is screwed into the threaded portion 9d.

  The side panel 1a on the passenger seat side is provided with a plurality of mounting holes 1e in the same position as the mounting holes 5c of the member bracket 5b at the mounting position of the steering member 5, and mounting bolts inserted through these mounting holes 1e. 10, the other end of the steering member 5 can be attached to the passenger side side panel 1 a.

  Next, the operation of the steering member mounting structure constructed as described above will be described.

  Before attaching the steering member 5 between the left and right side panels 1 a of the vehicle body 1, the nut base 8 is welded to the member bracket 5 b of the steering member 5 in advance.

  In welding the nut base 8, first, the tubular portion 8a of the nut base 8 is fitted into the attachment hole 5c from the outer surface side of the member bracket 5b. The inner diameter of the attachment hole 5c is smaller than the outer diameter of the tubular portion 8a. Since the diameter is slightly larger, the nut base 8 can be accurately positioned with respect to the member bracket 5b simply by fitting the cylindrical portion 8a into the mounting hole 5c.

  In addition, an undercut portion 8e is formed in the connecting portion 8d of the cylindrical portion 8a of the nut base 8 and the flange portion 8b, and there is no R portion as in the conventional nut base. The R portion does not ride on the edge, and thereby, the plurality of energizing protrusions 8f protruding on the surface of the flange portion 8b facing the member bracket 5b can be brought into contact with the member bracket 5b uniformly.

  Next, in this state, when an electrode 11 of a welding machine (not shown) is brought into contact with the flange portion 8b of the nut base 8 as shown in FIG. 3, a welding current is applied between the nut base 8 and the member bracket 5b. Since the welding current flows uniformly in the contact portion between the current-carrying protrusion 8f and the member bracket 5b and the current-carrying protrusion 8f is melted, the current-carrying protrusion 8f and the member bracket 5b can be spot welded uniformly and sufficiently. The conventional welding failure does not occur.

  When the nut base 8 is welded to all the mounting holes 5c of the member bracket 5b as described above, the steering member 5 is mounted substantially horizontally between the left and right side panels 1a in a state where the adjustment nut 9 is screwed into the nut base 8. .

  In attaching the steering member 5, first, a bracket 5 a provided on one end side of the steering member 5 is attached to the side panel 1 a on the driver's seat side by the fixing tool 6.

  The length of the steering member 5 is adjusted by the adjusting means 7 on the basis of the mounting portion on the driver's seat side, and the clearance of the steering member 5 is adjusted for the dimensional variation between the left and right side panels 1a.

  In adjusting the clearance, the adjustment nut 9 screwed into the cylindrical portion 8a of the nut base 8 is rotated, and the flange portion 9a of the adjustment nut 9 is crimped to the inner surface of the side panel 1a on the passenger seat side. The mounting bolt 10 inserted into the mounting hole 1e from the outside of the side panel 1a is screwed into the inner surface of the cylindrical portion 9a of the adjusting nut 9 and tightened to attach the other end of the steering member 5 to the side panel 1a on the passenger seat side. Thus, even if the dimension between the left and right side panels 1a varies, the steering member 5 can be securely attached at a predetermined position.

  The nut base 8 welded to the member bracket 5b of the steering member 5 has a high mounting position accuracy, so that the position of the adjusting nut 9 does not shift with respect to the mounting hole 1e on the side plate 1a side. Since the center axis of the steel plate is not inclined and welded, the workability during assembly is improved.

  On the other hand, FIGS. 5 to 7 show modified examples of the nut base attaching portion, and these modified examples will be described next.

  In addition, the same part as the said embodiment attaches | subjects the same code | symbol, and abbreviate | omits the description.

  In the first modified example shown in FIG. 5, a nut base 8 in which R is formed in the connecting portion 8d of the cylindrical portion 8a and the flange portion 8b is used as in the conventional case, and the mounting hole formed in the member bracket 5b. The opening edge of the mounting hole 5c is embossed so that the R portion does not interfere with the opening edge of 5c, and an embossed portion 5d protruding to the opposite side of the flange portion 8b is formed at the opening edge.

  That is, even if R is formed on the tubular portion 8a of the nut base 8 and the connecting portion 8d of the flange portion 8b, the opening edge of the mounting hole 5c and the R portion do not contact with each other due to the embossed portion 5d. When the cylindrical portion 8a of the nut base 8 is fitted into the mounting hole 5c of 5b, the central axis of the nut base 8 does not tilt, and no shunt current is generated in the welding current. The current-carrying protrusion 8f protruding from the portion 8b can be uniformly and reliably welded to the member bracket 5b, and the inner diameter of the mounting hole 5c is slightly larger than the outer diameter of the cylindrical portion 8a. On the other hand, the mounting position accuracy of the nut base 8b can be improved.

  Similarly to the first modified example, the second modified example shown in FIG. 6 uses a nut base 8 in which an R is formed in the connecting portion 8c of the cylindrical portion 8a and the flange portion 8b, and is formed in the member bracket 5b. In order to prevent the R portion from interfering with the opening edge of the mounting hole 5c, burring is performed on the opening edge of the mounting hole 5c to form a burring portion 5e protruding to the opposite side of the flange portion 8b at the opening edge.

  As a result, even if R is formed on the tubular portion 8a of the nut base 8 and the connecting portion 8d of the flange portion 8b, the opening edge of the mounting hole 5c and the R portion do not contact with each other by the burring portion 5e. When the cylindrical portion 8a of the nut base 8 is fitted into the mounting hole 5c of the bracket 5b, the central axis of the nut base 8 does not tilt, and no shunt current is generated in the welding current. The current-carrying protrusion 8f protruding from the flange portion 8b can be uniformly and reliably welded to the member bracket 5b, and the inner diameter of the burring portion 5e is made slightly larger than the outer diameter of the tubular portion 8a, whereby the member bracket The mounting position accuracy of the nut base 8b can be improved with respect to 5b.

  On the other hand, in the third modification shown in FIG. 7, the bottom surface of the flange portion 8b prevents the R formed on the tubular portion 8a of the nut base 8 and the connecting portion 8d of the flange portion 8b from interfering with the opening edge of the mounting hole 5c. An energizing protrusion 8f is provided on the side, and the flange portion 8b is welded to the member bracket 5b without fitting the cylindrical portion 8a into the mounting hole 5c.

  That is, with the member bracket 5b in contact with the energizing protrusion 8f projecting from the bottom surface of the flange portion 8b, the nut base 8 is aligned so that the center of the nut base 8 coincides with the center of the mounting hole 5c. Since welding is performed by applying a welding current between the member 8 and the member bracket 5b, R formed in the connecting portion 8d of the nut base 8 does not contact the opening edge of the mounting hole 5c. No shunting occurs in the welding current, whereby the energizing protrusion 8f can be reliably welded to the member bracket 5c.

  According to the steering member mounting structure of the present invention, when the flange portion of the nut base is welded to the end portion of the member bracket, there is no shunting in the welding current. It can be welded uniformly and reliably, and is optimal for a steering member mounting structure for supporting a steering shaft to which a steering wheel is mounted.

It is a front view which shows the attachment structure of the steering member which becomes embodiment of this invention. It is an expanded sectional view in the A circle of FIG. It is sectional drawing which shows the welding state of the nut base used for the attachment structure of the steering member which becomes embodiment of this invention. It is sectional drawing which follows the BB line of FIG. It is explanatory drawing which shows the 1st modification of the attachment structure of the steering member which becomes embodiment of this invention. It is explanatory drawing which shows the 2nd modification of the attachment structure of the steering member which becomes embodiment of this invention. It is explanatory drawing which shows the 3rd modification of the attachment structure of the steering member which becomes embodiment of this invention. It is a front view which shows the attachment structure of the conventional steering member. It is an expanded sectional view in the C circle of FIG. It is explanatory drawing at the time of welding of the nut base used for the attachment structure of the conventional steering member. It is explanatory drawing which shows the problem of the attachment structure of the conventional steering member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car body 1a Side panel 4 Steering shaft 5 Steering member 5c Mounting hole 5d Embossed part 5e Burring part 7 Adjusting means 8 Nut base 8a Tubular part 8b Flange part 8e Undercut part 8f Energizing protrusion 9 Adjusting nut

Claims (4)

One end of a steering member that supports a steering shaft is attached to one of side panels provided on both sides of the vehicle body, and the nut base is welded to the other end of the steering member on the other side of the side panel; A steering member mounting structure in which the other end side of the steering member is mounted via an adjusting means including an adjusting nut screwed into the nut member, wherein the nut base is connected to the cylindrical portion and one end side of the cylindrical portion. The steering member includes a current-projecting protrusion protruding from the flange portion in a state in which the cylindrical portion is fitted into a mounting hole formed at the other end of the steering member. When the electric welding is performed on the other end side, the continuous portion of the cylindrical portion and the flange portion contacts the opening edge of the mounting hole. No way, the mounting structure of the steering member, characterized in that the formation of the undercut in the connecting portion. One end of a steering member that supports a steering shaft is attached to one of side panels provided on both sides of the vehicle body, and the nut base is welded to the other end of the steering member on the other side of the side panel; A steering member mounting structure in which the other end side of the steering member is mounted via an adjusting means including an adjusting nut screwed into the nut member, wherein the nut base is connected to the cylindrical portion and one end side of the cylindrical portion. The steering member includes a current-projecting protrusion protruding from the flange portion in a state in which the cylindrical portion is fitted into a mounting hole formed at the other end of the steering member. When the other end of the electrode is electrically welded, R formed on the connecting portion between the tubular portion and the flange portion is the mounting hole. So as not to contact the opening edge, the mounting structure of the steering member, characterized in that to form embossed portions on the opening edge of the mounting hole. One end of a steering member that supports a steering shaft is attached to one of side panels provided on both sides of the vehicle body, and the nut base is welded to the other end of the steering member on the other side of the side panel; A steering member mounting structure in which the other end side of the steering member is mounted via an adjusting means including an adjusting nut screwed into the nut member, wherein the nut base is connected to the cylindrical portion and one end side of the cylindrical portion. The steering member includes a current-projecting protrusion protruding from the flange portion in a state in which the cylindrical portion is fitted into a mounting hole formed at the other end of the steering member. When the other end of the electrode is electrically welded, R formed on the connecting portion between the tubular portion and the flange portion is the mounting hole. So as not to contact the opening edge, the mounting structure of the steering member, characterized in that the formation of the burring portion on the opening edge of the mounting hole. One end of a steering member that supports a steering shaft is attached to one of side panels provided on both sides of the vehicle body, and the nut base is welded to the other end of the steering member on the other side of the side panel; A steering member mounting structure in which the other end side of the steering member is mounted via an adjusting means including an adjusting nut screwed into the nut member, wherein the nut base is connected to the cylindrical portion and one end side of the cylindrical portion. When the flange portion is electrically welded to the other end side of the steering member, R formed on the connecting portion between the tubular portion and the flange portion is attached to the flange portion. In order not to contact the opening edge of the hole, the energizing protrusion protruding from the flange portion without passing the cylindrical portion through the mounting hole is provided. Mounting structure of the steering member, characterized in that the serial and electric welding to the other end of the steering member.

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