JP5038767B2 - Steering column mounting structure - Google Patents

Description

  The present invention relates to a steering column mounting portion structure.

  A vehicle such as an automobile is provided with an instrument panel in the front part of the vehicle interior. A vehicle body strength member that extends in the vehicle width direction and connects the left and right vehicle body panels is provided inside the instrument panel. A steering column extending substantially in the vehicle front-rear direction is disposed below the vehicle body strength member. A column bracket is fixed to the vehicle body strength member. A steering column is bolted to the column bracket (see, for example, Patent Document 1).

  For example, in the case of FIG. 5, the steering column 5 extending substantially in the vehicle front-rear direction 4 with respect to the lower part of the column bracket 3 fixed to the vehicle body strength member 2 extending substantially in the vehicle width direction 1 It is attached via.

  A temporary holding portion 8 capable of temporarily holding the steering column 5 with respect to the column bracket 3 is provided at or near the front attachment portion 6.

  Further, the steering column 5 is a movable portion that can move forward in the event of an emergency with respect to the column bracket 3, and a movable boundary portion 9 that can move the steering column 5 forward is provided.

  For such a configuration, a non-movable bracket 11 is attached to the steering column 5 in advance. This non-movable bracket 11 corresponds to the front portion 3 a of the column bracket 3. A front mounting portion 6 and a temporary holding portion 8 are provided between the non-movable bracket 11 and the front portion 3 a of the column bracket 3.

  Here, the front mounting portion 6 is a round hole 13, 14 provided between the front portion 3 a of the column bracket 3 and the non-movable bracket 11, which can be bolted in a substantially vertical direction.

  The temporary holding portion 8 includes a hook portion 15 projecting downward and rearward from the front portion 3a of the column bracket 3 and a corresponding locking hole formed at a corresponding position of the non-movable bracket 11. Part 16.

  On the other hand, a rear mounting shape portion 12 is formed in the steering column 5. The rear mounting shape portion 12 corresponds to the rear portion 3 b of the column bracket 3. A rear mounting portion 7 is provided between the rear mounting shape portion 12 and the rear portion 3 b of the column bracket 3.

  Here, the rear mounting portion 7 is formed at a position corresponding to the stud bolt 17 projecting substantially downward from the rear portion 3 b of the column bracket 3 and the rear mounting shape portion 12 of the steering column 5. And a long hole portion 18 extending in the vehicle front-rear direction 4.

  The movable boundary 9 described above is set at the attachment portion of the non-movable bracket 11 with respect to the steering column 5 and the attachment portion 7 on the rear side.

  That is, the front attachment portion 6 is a non-movable fastening portion that is not the movable boundary portion 9, the rear attachment portion 7 is a movable fastening portion that becomes the movable boundary portion 9, and is not connected to the steering column 5. A mounting portion with the movable bracket 11 is a movable mounting portion.

  In such a configuration, the steering column 5 is attached to the column bracket 3 fixed to the vehicle body strength member 2 as follows.

  First, the temporary holding unit 8 is used to temporarily hold the steering column 5. That is, the locking hole 16 formed in the non-movable bracket 11 of the steering column 5 is locked to the hook portion 15 provided in the front portion 3 a of the column bracket 3.

  Next, the rear end portion of the steering column 5 is rotated upward about the locking portion between the hook portion 15 and the locking hole portion 16 to attach the rear mounting portion 7. That is, the rear portion 3b of the column bracket 3 and the rear mounting shape portion 12 of the steering column 5 are brought into contact with each other. The long hole portion 18 formed in the portion 12 is fitted, and a nut is screwed to the lower end portion of the stud bolt 17, thereby fastening the rear portion 3 b of the column bracket 3 and the rear mounting shape portion 12.

  Finally, the front mounting portion 6 is attached. That is, bolts are inserted into the round holes 13 and 14 provided between the front portion 3a of the column bracket 3 and the non-movable bracket 11 in a substantially vertical direction, nuts are screwed, and the column bracket 3 is The front portion 3a and the non-movable bracket 11 are fastened. As described above, when the mounting by the front mounting portion 6 is completed, the non-movable bracket 11 interposed between the steering column 5 and the stud bolt 17 is in an emergency with respect to the front portion 3a of the column bracket 3. Also fixed so that it does not move.

  As described above, the steering column 5 is attached to the column bracket 3. At this time, the front-side attachment portion 6 is in a state of being indirectly attached via the non-movable bracket 11.

In an emergency, the steering column 5 moves forward with respect to the column bracket 3 to absorb a load input due to a secondary collision of the occupant. At this time, this forward movement is performed with the attachment portion of the non-movable bracket 11 with respect to the steering column 5 and the movable boundary portion 9 set on the rear attachment portion 7 as a boundary.
JP-A-5-330435

  However, in the steering column mounting portion structure, the non-movable bracket 11 is interposed between the column bracket 3 and the steering column 5 so that the temporary holding portion 8 does not hinder the forward movement of the steering column 5 in an emergency. In this case, the temporary holding portion 8 is provided between the non-movable bracket 11 and the column bracket 3, but if this is done, the structure becomes complicated and the number of assembling steps and the number of parts increase. There were problems such as.

In order to solve the above-mentioned problem, in the invention described in claim 1, a steering column extending substantially in the vehicle longitudinal direction is disposed below the vehicle body strength member extending substantially in the vehicle width direction, and is fixed to the vehicle body strength member. The steering column is attached to the installed column bracket via front and rear mounting portions, and a temporary holding portion capable of temporarily holding the steering column with respect to the column bracket is provided in the vicinity of the front mounting portion. The steering column is a movable portion that can move forward in an emergency with respect to the column bracket, and in the steering column mounting portion structure that includes a movable boundary portion that can move the steering column forward, the movable boundary portion includes: The temporary holding portions are respectively set to the front and rear mounting portions, and the temporary holding portions are provided on the steering column. A holding jig detachably supporting portion provided on the racket, and a temporary holding possible temporary holding member between said temporary retaining engagement portion and the holding jig detachably supporting section, the temporary holding And the temporary holding jig is detachably installed from the temporary holding jig removable support part after the steering column is fixed to the column bracket. The steering column mounting portion structure is configured such that after the temporary holding jig is removed, the steering column can be directly fixed to the column bracket via the front and rear mounting portions which are movable boundary portions. It is said.

  In the invention described in claim 2, the temporary holding jig is a locking pin extending substantially in the vehicle width direction, and the temporary holding jig detachable support portion is provided at the front portion of the column bracket. The steering column mounting portion structure according to claim 1, wherein the pin is a pin receiving portion capable of detachably supporting the locking pin.

According to the first aspect of the present invention, a steering column extending substantially in the vehicle longitudinal direction is disposed below the vehicle body strength member extending substantially in the vehicle width direction, and the column bracket fixed to the vehicle body strength member is The steering column is mounted via front and rear mounting portions, and a temporary holding portion capable of temporarily holding the steering column with respect to the column bracket is provided in the vicinity of the front mounting portion, and the steering column is mounted on the column bracket. In addition, in the steering column mounting portion structure provided with a movable boundary portion capable of moving forward in the emergency, the movable boundary portion is set to the front and rear mounting portions, respectively. the temporary holding section, the temporary holding engaging portion provided on the steering column, the holding jig wearing provided column bracket A supportable portion, said and a temporary holding possible temporary holding member between said holding jig detachably supporting portion and the temporary retaining engagement portion, engaging portion for the temporary holding, the steering column The temporary holding jig is installed so as to be removable from the temporary holding jig removable support portion after the steering column is fixed to the column bracket, and the temporary holding jig is removed. Since the steering column can be directly fixed to the column bracket via the front and rear mounting portions that are movable boundary portions after the outside, the following operational effects can be obtained. That is, by making the temporary holding jig removable, the following operational effects can be obtained. In other words, by making it possible to remove the temporary holding jig, it becomes possible to directly fix the steering column, which is a movable part, to the column bracket. There is no need to attach a bracket or the like to the steering column in advance, thereby simplifying the structure, facilitating assembly, improving operational reliability, and the like. As a result, the number of parts around the non-movable bracket can be reduced, and the weight can be reduced, the cost can be reduced, and the part size can be reduced.

  According to the invention of claim 2, the temporary holding jig is a locking pin extending substantially in the vehicle width direction, and the temporary holding jig detachable support portion is provided at the front portion of the column bracket, By being a pin receiving portion that can support the locking pin so as to be removably inserted, the temporary holding jig can be easily set and removed and a structure that can be easily handled can be obtained.

  Hereinafter, embodiments embodying the present invention will be described together with illustrated examples.

  1 to 4 show an embodiment of the present invention.

  First, the configuration will be described.

  A vehicle such as an automobile is provided with an instrument panel in the front part of the vehicle interior. Inside the instrument panel, a vehicle body strength member 32 that extends in the vehicle width direction 31 and connects the left and right vehicle body panels is provided. The vehicle body strength member 32 is called a cross car beam or a steering support member. In this case, the vehicle body strength member 32 is formed of a metal round pipe.

  A steering column 34 extending substantially in the vehicle front-rear direction 33 is disposed below the vehicle body strength member 32. The steering column 34 is slightly inclined so that the rear part is higher than the front part. Since the steering column 34 has a relatively complicated configuration, a detailed configuration is omitted.

  A column bracket 35 is fixed to the vehicle body strength member 32 by welding or the like. In this case, the column bracket 35 includes an upper column bracket 35a and a lower column bracket 35b, but is not limited thereto. In this case, the upper column bracket 35 a extends across the vehicle body strength member 32. The lower column bracket 35b is fixed to the lower part of the front portion of the upper column bracket 35a. The upper column bracket 35a is substantially U-shaped when viewed from the front of the vehicle. Further, when viewed from the lower column bracket 35b and the front of the vehicle, it has a substantially downward U-shape. A steering column 34 is fixed to the lower portion of the column bracket 35.

  That is, the steering column 34 is attached to the column bracket 35 via the front and rear attachment portions 36 and 37.

  A temporary holding portion 38 capable of temporarily holding the steering column 34 with respect to the column bracket 35 is provided at or near the front attachment portion 36.

  In addition, the steering column 34 is a movable portion 39 that can move forward with respect to the column bracket 35 in an emergency, and a movable boundary portion 41 that can move the steering column 34 forward is provided.

  The steering column 34 is formed with front and rear mounting shape portions 42 and 43 in advance. The front mounting shape portion 42 corresponds to the lower column bracket 35b, and the rear mounting shape portion 43 corresponds to the rear portion of the upper column bracket 35a. A front mounting portion 36 and a temporary holding portion 38 are provided between the front mounting shape portion 42 and the front portion of the column bracket 35 (lower column bracket 35b; the same applies hereinafter). The temporary holding portion 38 is provided at a position in front of the front mounting portion 36. Further, a rear mounting portion 37 is provided between the rear mounting shape portion 43 and the rear portion of the column bracket 35 (the rear portion of the upper column bracket 35a; the same applies hereinafter).

  And in the thing of this Example, the movable boundary part 41 is set to the attachment parts 36 and 37 before and behind, respectively.

  Here, the front mounting portion 36 is provided between the front portion of the column bracket 35 and the front mounting shape portion 42 of the steering column 34, and can be fastened by a bolt 45 extending substantially in the vehicle width direction 31. Bolt holes 46 and 47 (lateral holes) are provided. The movable boundary portion 41 is set by setting at least one of the bolt holes 46 and 47 as a long hole to be a movable fastening portion. In this case, the bolt hole 46 of the column bracket 35 is a round hole, and the bolt hole 47 of the front mounting shape portion 42 is a long hole.

  The rear mounting portion 37 is formed at a position corresponding to the stud bolt 48 projecting substantially downward from the rear portion of the column bracket 35 and the rear mounting shape portion 43 of the steering column 34. And a long hole 49 extending substantially in the vehicle longitudinal direction 33. The movable boundary portion 41 is set by forming the movable fastening portion by the long hole portion 49.

Also, the temporary holding section 38, the temporary holding engaging portion 51 provided on the steering column 34, a holding jig detachably supporting portion 55 provided in the column bracket 35, a temporary retaining engagement portion 51 holds A temporary holding jig 52 that can be temporarily held between the jig detachable support portions 55 is provided.

  The temporary holding locking portion 51 protrudes directly from the steering column 34. The temporary holding locking portion 51 is an L-shaped locking piece 53 provided at the front portion of the mounting shape portion 42 on the front side of the steering column 34. The L-shaped locking piece 53 has a vertical mounting surface portion that can be mounted to the front portion of the mounting shape portion 42, and a locking surface portion that extends substantially forward from the upper end portion of the mounting surface portion. In this case, the temporary holding locking portion 51 is a separate member and is integrally fixed to the front portion of the front mounting shape portion 42 by welding, rivets, or the like, but can also be formed by cutting and raising.

Further, the temporary holding jig 52 is detachably installed from the temporary holding jig removable support portion 55 after the steering column 34 is fixed to the column bracket 35.

  Further, after the temporary holding jig 52 is removed, the steering column 34 can be directly fixed to the column bracket 35 via the front and rear attachment portions 36 and 37 (only) which are the movable boundary portions 41. It is configured.

  More specifically, the temporary holding jig 52 is a locking pin 56 that extends substantially in the vehicle width direction 31. The locking pin 56 may be provided with a knob 56a or the like on one end side so that it can be operated by hand.

  Further, a temporary holding jig attachable / detachable support portion 55 is provided at the front portion of the column bracket 35 and serves as a pin receiving portion 57 capable of supporting the locking pin 56 in a detachable manner. The pin receiving portion 57 has a hook shape opened upward.

  Next, the operation of this embodiment will be described.

  The steering column 34 is attached to the column bracket 35 fixed to the vehicle body strength member 32 as follows.

  First, the steering column 34 is temporarily held by the column bracket 35 using the temporary holding portion 38. That is, temporary holding is performed between the temporary holding jig 52 provided on the column bracket 35 and the temporary holding locking portion 51 provided on the steering column 34.

  More specifically, the locking pin 56 as the temporary holding jig 52 is inserted and held in advance in the pin receiving portion 57 as the temporary holding jig detachable support portion 55 provided at the front portion of the column bracket 35. The L-shaped locking piece 53 as the temporary holding locking part 51 is locked to the locking pin 56.

  Next, the stud bolt protruding from the rear portion of the column bracket 35 is formed by turning the rear end portion of the steering column 34 upward about the locking portion between the L-shaped locking piece 53 and the locking pin 56. 48, a long hole portion 49 formed in the mounting shape portion 43 on the rear side of the steering column 34 is fitted, and a nut is screwed to the lower end portion of the stud bolt 48, thereby mounting the rear portion of the column bracket 35 and the mounting shape. The parts 42 and 43 are fastened (rear mounting part 37, movable boundary part 41, movable fastening part).

Next , bolts 45 are inserted in the vehicle width direction 31 into bolt holes 46 and 47 (lateral holes) provided between the front portion of the column bracket 35 and the front mounting shape portion 42, and the nuts are tightened. It is screwed to fasten the front portion of the column bracket 35 and the front mounting shape portion 42 (front mounting portion 36, movable fastening portion). Finally, the locking pin 56 as the temporary holding jig 52 is removed from the pin receiving part 57 as the holding jig detachable support part 55. Thus, the need is mounting due to front attachment portion 36, the front side of the mounting features 42, to the front of the column bracket 35 is fixed to allow dynamic Kukoto in an emergency.

  As described above, the steering column 34 is attached to the column bracket 35. At this time, the steering column 34 is directly attached to the column bracket 35.

  In an emergency, the steering column 34 moves forward with respect to the column bracket 35, so that it is possible to absorb the load input due to the occupant's secondary collision. This forward movement is performed at the movable boundary 41 set on the front mounting portion 36 and the rear mounting portion 37 with respect to the steering column 34.

According to this embodiment, the steering column 34 extending substantially in the vehicle longitudinal direction 33 is disposed below the vehicle body strength member 32 extending substantially in the vehicle width direction 31, and the column bracket 35 fixed to the vehicle body strength member 32 is attached to the column bracket 35. On the other hand, the steering column 34 is attached via front and rear attachment portions 36 and 37, and a temporary holding portion 38 capable of temporarily holding the steering column 34 with respect to the column bracket 35 is provided in the vicinity of the front attachment portion 36. The steering column 34 is a movable portion 39 that can move forward in an emergency with respect to the column bracket 35, and is movable in a steering column mounting portion structure that includes a movable boundary portion 41 that can move the steering column 34 forward. The boundary portion 41 is set to the front and rear mounting portions 36 and 37, respectively, and the temporary holding portion 38 is a steering collage. Between the temporary holding engaging portion 51 provided on 34, the holding jig detachably supporting portion 55 provided in the column bracket 35, a temporary retaining engagement portion 51 and the holding jig detachably supporting portion 55 And a temporary holding jig 52 that projects temporarily from the steering column 34, and the temporary holding jig 52 has a steering column for the column bracket 35. After the completion of fixing 34, the steering column 34 is detachably installed from the temporary holding jig attachable / detachable support portion 55, and after the temporary holding jig 52 is detached, the steering column 34 is moved to the movable boundary 41. The following operational effects can be obtained by being configured to be directly fixable via the front and rear mounting portions 36 and 37.

  That is, by making it possible to remove the temporary holding jig 52, the steering column 34, which is the movable portion 39, can be directly fixed to the column bracket 35. Therefore, it is not necessary to previously attach a non-movable bracket or the like to the steering column 34, thereby simplifying the structure, facilitating assembly, and improving the reliability of operation. As a result, the number of parts around the non-movable bracket can be reduced, and the weight can be reduced, the cost can be reduced, and the part size can be reduced.

  Further, the temporary holding jig 52 is a locking pin 56 extending substantially in the vehicle width direction 31, and the temporary holding jig detachable support portion 55 is provided at the front portion of the column bracket 35. With the pin receiving portion 57 that can be removably supported, a structure that can be easily set and removed and that can be easily handled can be obtained.

  Although the embodiments of the present invention have been described in detail with reference to the drawings, the embodiments are only examples of the present invention, and the present invention is not limited to the configurations of the embodiments. Needless to say, design changes and the like within a range not departing from the gist of the invention are included in the present invention. Further, for example, when each embodiment includes a plurality of configurations, it is a matter of course that possible combinations of these configurations are included even if not specifically described. Further, when a plurality of embodiments and modifications are shown, it is needless to say that possible combinations of configurations extending over these are included even if not specifically described. Further, the configuration depicted in the drawings is of course included even if not particularly described.

It is a disassembled perspective view of the steering column attachment part structure concerning the Example of this invention. It is a side view of the assembly | attachment state of FIG. FIG. 3 is a partially enlarged perspective view of FIG. 2. FIG. 4 is a partially enlarged side view of FIG. 3. It is a disassembled perspective view of a prior art example.

Explanation of symbols

31 Vehicle width direction 32 Car body strength member 33 Vehicle longitudinal direction 34 Steering column 35 Column bracket 36 Mounting portion 37 Mounting portion 38 Temporary holding portion 39 Movable portion 41 Movable boundary portion 51 Temporary holding locking portion 52 Temporary holding jig 55 Temporary holding Jig detachable support part 56 Locking pin 57 Pin receiving part

Claims (2)

A steering column extending substantially in the vehicle longitudinal direction is disposed below the vehicle body strength member extending substantially in the vehicle width direction.
With respect to the column bracket fixed to the vehicle body strength member, the steering column is mounted via front and rear mounting portions,
In the vicinity of the front mounting part, a temporary holding part capable of temporarily holding the steering column with respect to the column bracket is provided,
In the steering column mounting portion structure in which the steering column is a movable portion that can move forward in an emergency with respect to the column bracket, and a movable boundary portion that can move the steering column forward is provided.
The movable boundary portions are respectively set on the front and rear attachment portions,
The temporary holding portion includes a temporary holding locking portion provided in a steering column, a holding jig detachable support portion provided in a column bracket, the temporary holding locking portion and the holding jig detachable support. and a temporary holding possible temporary holding member with the part,
The temporary holding latching portion protrudes directly from the steering column,
The temporary holding jig is installed so as to be removable from the temporary holding jig detachable support portion after the steering column is fixed to the column bracket.
In addition, the steering column mounting is characterized in that after the temporary holding jig is removed, the steering column can be directly fixed to the column bracket via the front and rear mounting portions which are movable boundary portions. Part structure. The temporary holding jig is a locking pin extending substantially in the vehicle width direction,
The steering according to claim 1, wherein the temporary holding jig detachable support portion is a pin receiving portion that is provided at a front portion of the column bracket and is capable of detachably supporting the locking pin. Column mounting structure.

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