JP2018052210A - Vehicular steering device - Google Patents

Vehicular steering device Download PDF

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JP2018052210A
JP2018052210A JP2016188268A JP2016188268A JP2018052210A JP 2018052210 A JP2018052210 A JP 2018052210A JP 2016188268 A JP2016188268 A JP 2016188268A JP 2016188268 A JP2016188268 A JP 2016188268A JP 2018052210 A JP2018052210 A JP 2018052210A
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screw shaft
column
holding member
column tube
nut member
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亮太 杉浦
Ryota Sugiura
亮太 杉浦
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Aisin Corp
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Aisin Seiki Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To achieve further reduction of a number of components in a vehicular steering device provided with a telescopic mechanism.SOLUTION: A vehicular steering device includes a column housing (3) supported by a vehicle body, a column tube (1) which is supported so as to be movable in an axial direction relative to the column housing and which retains therein a steering shaft (2), and a telescopic mechanism (TL) that drives the column tube in the axial direction relative to the column housing. The telescopic mechanism includes an electric motor supported by the column housing, a screw shaft (5) connected to an output shaft of the electric motor, a nut member (6) engaged with the screw shaft, and a holder member (7) which is held by the nut member and which holds the column housing and the column tube with the nut member. The nut member moves in the axial direction of the screw shaft together with the holder member and the column tube in accordance with a rotational drive to the screw shaft.SELECTED DRAWING: Figure 2

Description

本発明は、車両のステアリング装置に関し、特に、ステアリングホイールの車体前後方向の操作位置を調整し得るテレスコピック機構を備えたステアリング装置に係る。   The present invention relates to a vehicle steering apparatus, and more particularly to a steering apparatus including a telescopic mechanism that can adjust an operation position of a steering wheel in a longitudinal direction of a vehicle body.

電動モータの駆動力を用いてステアリングホイールの前後位置を調節可能なテレスコピック機構を備えたステアリング装置に関し、例えば特許文献1では、「鋼製の円弧状部材を介して、筒状のアウタージャケットの内側に筒状のインナージャケットを嵌挿してなるジャケットと、電動モータを駆動源とするテレスコ調整機構と、上記アウタージャケットの内周面に上記円弧状部材を介して上記インナージャケットの外周面を押し付ける付勢手段と、を有し、上記テレスコ調整機構により、上記アウタージャケットの一端側から突出する上記インナージャケットの突出量を変更することでステアリングホイールの前後位置を調節可能なステアリングコラム装置において、上記アウタージャケットの一端側には、上記ジャケットの軸方向に沿った一対の長辺部を有する矩形の開口穴が形成され、上記付勢手段は、上記開口穴の円周方向の反対側で上記アウタージャケットの軸方向に並んで配置され、上記アウタージャケットの内周面から半径方向へ突出するように付勢された一対の押圧部材を備えており、上記テレスコ調整機構は、上記開口穴内に位置し、上記インナージャケットの外周面に固定された支持ユニットと、上記ジャケットの軸方向に沿って移動可能に上記アウタージャケットに支持され、先端が上記支持ユニットに連結された軸部材と、を備え、上記インナージャケットは、上記一対の押圧部材の付勢力により常に開口穴側に付勢され、上記一対の長辺部に沿って位置する上記アウタージャケットの内周面における上記開口穴の両側部分で上記円弧状部材を介して支持される」ステアリングコラム装置が提案されている(特許文献1の段落〔0008〕に記載)。   For example, Patent Document 1 discloses a steering apparatus including a telescopic mechanism that can adjust the front and rear positions of a steering wheel by using a driving force of an electric motor, such as “inside of a cylindrical outer jacket via a steel arcuate member. A cylindrical inner jacket, a telescopic adjustment mechanism using an electric motor as a drive source, and an outer peripheral surface of the inner jacket pressed against the inner peripheral surface of the outer jacket via the arc-shaped member. A steering column device capable of adjusting a front-rear position of the steering wheel by changing a protruding amount of the inner jacket protruding from one end side of the outer jacket by the telescopic adjustment mechanism. At one end of the jacket, along the axial direction of the jacket A rectangular opening hole having a pair of long sides is formed, and the urging means is arranged side by side in the axial direction of the outer jacket on the opposite side of the circumferential direction of the opening hole, and the inner periphery of the outer jacket A pair of pressing members biased so as to protrude in the radial direction from the surface, the telescopic adjustment mechanism is located in the opening hole and fixed to the outer peripheral surface of the inner jacket; and A shaft member that is supported by the outer jacket so as to be movable along the axial direction of the jacket, and whose tip is connected to the support unit, and the inner jacket is always open by an urging force of the pair of pressing members. And is supported by the arc-shaped members at both side portions of the opening hole on the inner peripheral surface of the outer jacket positioned along the pair of long sides. The "steering column apparatus has been proposed (described in paragraph Patent Document 1 [0008]).

特開2014−231288号公報JP 2014-231288 A

上記特許文献1に記載のステアリングコラム装置における「アウタージャケット」及び「インナージャケット」は、夫々「コラムハウジング」及び「コラムチューブ」に対応しており、上記の「付勢手段」と「テレスコ調整機構」は夫々別機構(別部材)とされ、多くの部品で構成されている。これは上記のステアリングコラム装置の基本構成上止むを得ないが、近時の軽量化及び省スペース化の要請に応えるには更なる部品点数の削減が必要である。   The “outer jacket” and the “inner jacket” in the steering column apparatus described in Patent Document 1 correspond to the “column housing” and the “column tube”, respectively. "Is a separate mechanism (separate member), and is composed of many parts. This is unavoidable due to the basic structure of the steering column device described above, but it is necessary to further reduce the number of parts in order to meet the recent demand for weight reduction and space saving.

そこで、本発明は、テレスコピック機構を備えた車両のステアリング装置において、部品点数の一層の削減を可能とすることを課題とする。   Therefore, an object of the present invention is to further reduce the number of parts in a vehicle steering apparatus provided with a telescopic mechanism.

上記の課題を達成するため、本発明は、車体に支持されるコラムハウジングと、該コラムハウジングに対し軸方向移動可能に支持されステアリングシャフトを収容するコラムチューブと、該コラムチューブを前記コラムハウジングに対し軸方向に駆動して前記ステアリングシャフトを車体前後方向に駆動するテレスコピック機構を備えた車両のステアリング装置において、前記テレスコピック機構が、前記コラムハウジングに支持される電動モータと、該電動モータの出力軸に連結される螺子軸と、該螺子軸に螺合されるナット部材と、該ナット部材に保持され当該ナット部材と共に前記コラムハウジング及び前記コラムチューブを挟持する保持部材とを備え、前記電動モータによる前記螺子軸の回転駆動に応じて、前記ナット部材が前記保持部材及び前記コラムチューブと共に前記螺子軸の軸方向に移動するように構成されている。尚、上記の「車体前後方向」は必ずしも路面に対して平行を意味するものではなく、路面に対し傾斜している方向を含む(以下、同様)。   In order to achieve the above object, the present invention provides a column housing supported by a vehicle body, a column tube supported so as to be axially movable with respect to the column housing and containing a steering shaft, and the column tube attached to the column housing. On the other hand, in a vehicle steering apparatus having a telescopic mechanism for driving in the axial direction to drive the steering shaft in the longitudinal direction of the vehicle body, the telescopic mechanism includes an electric motor supported by the column housing, and an output shaft of the electric motor. A screw shaft connected to the screw shaft, a nut member screwed to the screw shaft, and a holding member held by the nut member and sandwiching the column housing and the column tube together with the nut member, and by the electric motor In response to the rotational drive of the screw shaft, the nut member is the retaining member. And it is configured to move in the axial direction of the screw shaft with members and said column tube. The above-mentioned “vehicle body longitudinal direction” does not necessarily mean parallel to the road surface, but includes a direction inclined with respect to the road surface (hereinafter the same).

上記のステアリング装置において、前記ナット部材は、前記螺子軸に直交する方向に延在し前記螺子軸に平行な少なくとも一つの取付部を有し、前記保持部材は、前記取付部に対向する位置に少なくとも一つの支持部を有し、前記コラムチューブは、前記保持部材の支持部が嵌合する少なくとも一つの嵌合孔を有し、前記コラムハウジングは、前記螺子軸に平行な少なくとも一つの長穴を有し、該長穴内を前記保持部材の支持部が移動可能に配設されているものとするとよい。   In the steering apparatus, the nut member has at least one attachment portion extending in a direction orthogonal to the screw shaft and parallel to the screw shaft, and the holding member is located at a position facing the attachment portion. The column tube has at least one fitting hole into which the support portion of the holding member is fitted, and the column housing has at least one elongated hole parallel to the screw shaft. It is preferable that the support portion of the holding member is movably disposed in the elongated hole.

更に、前記ナット部材の取付部と前記保持部材の支持部とを締結する締結部材を備えたものとするとよい。前記締結部材は合成樹脂製の柱状部材としてもよい。   Furthermore, it is good to have the fastening member which fastens the attaching part of the said nut member, and the support part of the said holding member. The fastening member may be a columnar member made of synthetic resin.

本発明は上述のように構成されているので以下の効果を奏する。即ち、本発明のテレスコピック機構は、コラムハウジングに支持される電動モータと、その出力軸に連結される螺子軸と、螺子軸に螺合されるナット部材と、ナット部材に保持されナット部材と共にコラムハウジング及びコラムチューブを挟持する保持部材とを備え、電動モータによる螺子軸の回転駆動に応じて、ナット部材が保持部材及びコラムチューブと共に螺子軸の軸方向に移動するように構成されているので、コラムチューブに対し所望の付勢力を付与し得ると共に、ステアリングホイールを所望の車体前後方向位置に調整することができる。而して、テレスコピック機構を構成する部品点数を従前に比し大幅に削減することができ、軽量化も可能となる。   Since this invention is comprised as mentioned above, there exist the following effects. That is, the telescopic mechanism of the present invention includes an electric motor supported by a column housing, a screw shaft connected to the output shaft, a nut member screwed to the screw shaft, a column held together with the nut member and the nut member. Since the nut member is configured to move in the axial direction of the screw shaft together with the holding member and the column tube in accordance with the rotational drive of the screw shaft by the electric motor. A desired urging force can be applied to the column tube, and the steering wheel can be adjusted to a desired position in the longitudinal direction of the vehicle body. Thus, the number of parts constituting the telescopic mechanism can be greatly reduced as compared with the prior art, and the weight can be reduced.

上記のステアリング装置において、ナット部材は、螺子軸に直交する方向に延在し螺子軸に平行な少なくとも一つの取付部を有し、保持部材は、取付部に対向する位置に少なくとも一つの支持部を有し、コラムチューブは、保持部材の支持部が嵌合する少なくとも一つの嵌合孔を有し、コラムハウジングは、螺子軸に平行な少なくとも一つの長穴を有し、この長穴内を保持部材の支持部が移動可能に配設されている構成とすれば、組付け作業が容易となり、長穴等はコラムチューブの抜け止めとして機能する。   In the steering apparatus, the nut member has at least one attachment portion extending in a direction orthogonal to the screw shaft and parallel to the screw shaft, and the holding member is at least one support portion at a position facing the attachment portion. The column tube has at least one fitting hole into which the support portion of the holding member is fitted, and the column housing has at least one long hole parallel to the screw shaft, and holds the inside of the long hole. If the support portions of the members are arranged so as to be movable, the assembling work is facilitated, and the long holes and the like function as a column tube retaining member.

更に、ナット部材の取付部と保持部材の支持部とを締結する締結部材を備えたものとすれば、締結部材の締付力に応じてコラムチューブに対し所望の付勢力を付与することができると共に、円滑なテレスコピック作動を確保することができる。例えば、締結部材としてボルトを用いれば、その螺合によってナット部材と保持部材を容易に締結することができ、組付け作業が一層容易となる。また、締結部材を合成樹脂製の柱状部材とすれば、この柱状部材に対して所定値を越える過大な荷重が作用したときには破断するので、柱状部材の剪断力によって所望の離脱荷重を発生させることができる。   Furthermore, if a fastening member that fastens the attachment portion of the nut member and the support portion of the holding member is provided, a desired urging force can be applied to the column tube according to the fastening force of the fastening member. At the same time, a smooth telescopic operation can be ensured. For example, when a bolt is used as the fastening member, the nut member and the holding member can be easily fastened by screwing, and the assembling work is further facilitated. Further, if the fastening member is a columnar member made of a synthetic resin, it will break when an excessive load exceeding a predetermined value is applied to the columnar member, so that a desired detachment load is generated by the shearing force of the columnar member. Can do.

本発明の一実施形態に係るステアリング装置の主要構成の横断面図である。1 is a cross-sectional view of a main configuration of a steering device according to an embodiment of the present invention. 本発明の一実施形態に係るステアリング装置の主要構成の縦断面図である。1 is a longitudinal sectional view of a main configuration of a steering device according to an embodiment of the present invention. 本発明の一実施形態における主要構成の組付前の状態を示す斜視図である。It is a perspective view which shows the state before the assembly | attachment of the main structures in one Embodiment of this invention. 本発明の一実施形態における主要構成の組付前の状態を示す正面図である。It is a front view which shows the state before the assembly | attachment of the main structures in one Embodiment of this invention. 本発明の他の実施形態における主要構成の縦断面図である。It is a longitudinal cross-sectional view of the main components in other embodiment of this invention.

以下、本発明の望ましい実施形態について図面を参照して説明する。図1乃至図4は本発明の一実施形態に係るステアリング装置の主要構成を示すもので、車体(図示せず)に支持されるコラムハウジング3に対し、ステアリングシャフト2を収容するコラムチューブ1が軸方向移動可能に支持され、更に、コラムチューブ1を軸方向に駆動するテレスコピック機構TLが配設されている。本実施形態のテレスコピック機構TLは、図1に示すように、コラムハウジング3に支持される電動モータ4と、その出力軸に連結される螺子軸5と、螺子軸5に螺合されるナット部材6と、ナット部材6に保持されナット部材6と共にコラムハウジング3及びコラムチューブ1を挟持する保持部材7とを備え、電動モータ4による螺子軸5の回転駆動に応じて、ナット部材6が螺子軸5の軸方向に移動し、ナット部材6と共に保持部材7及びコラムチューブ1が軸方向移動してステアリングシャフト2が車体前後方向に移動するように構成されている。   Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. 1 to 4 show a main configuration of a steering apparatus according to an embodiment of the present invention. A column tube 1 that accommodates a steering shaft 2 is provided with respect to a column housing 3 supported by a vehicle body (not shown). A telescopic mechanism TL that is supported so as to be movable in the axial direction and further drives the column tube 1 in the axial direction is disposed. As shown in FIG. 1, the telescopic mechanism TL of the present embodiment includes an electric motor 4 supported by a column housing 3, a screw shaft 5 connected to an output shaft thereof, and a nut member screwed to the screw shaft 5. 6 and a holding member 7 that is held by the nut member 6 and sandwiches the column housing 3 and the column tube 1 together with the nut member 6, and the nut member 6 is screwed in accordance with the rotational drive of the screw shaft 5 by the electric motor 4. The holding member 7 and the column tube 1 are moved in the axial direction together with the nut member 6 so that the steering shaft 2 is moved in the longitudinal direction of the vehicle body.

本実施形態においては、ナット部材6は螺子軸5に直交する方向に延在し螺子軸5の両側に平行な取付部6a、6aを有する。これらの取付部6a、6aにはボルトB、Bが挿通する取付孔6b、6bが形成されている。一方、保持部材7は、取付孔6b、6bに対向する位置に夫々螺子穴7b、7bが形成された円柱状の支持部7a、7aを有する。そして、図2及び図3に示すように、コラムチューブ1の一側面(図2の上面)には、保持部材7の支持部7a、7aが嵌合する嵌合孔1a、1aが形成されている。また、コラムハウジング3の一側面(図2の上面)には、コラムチューブ1の軸方向に平行な長穴3a、3aが形成されており、保持部材7の支持部7a、7aが夫々長穴3a、3a内を移動可能に配設されている。   In the present embodiment, the nut member 6 has attachment portions 6 a and 6 a that extend in a direction orthogonal to the screw shaft 5 and are parallel to both sides of the screw shaft 5. Mounting holes 6b and 6b through which bolts B and B are inserted are formed in these mounting portions 6a and 6a. On the other hand, the holding member 7 includes cylindrical support portions 7a and 7a in which screw holes 7b and 7b are formed at positions facing the attachment holes 6b and 6b, respectively. As shown in FIGS. 2 and 3, fitting holes 1a and 1a into which the support portions 7a and 7a of the holding member 7 are fitted are formed on one side surface (upper surface in FIG. 2) of the column tube 1. Yes. Further, elongated holes 3a, 3a parallel to the axial direction of the column tube 1 are formed on one side surface (the upper surface in FIG. 2) of the column housing 3, and the support portions 7a, 7a of the holding member 7 are respectively elongated holes. 3a and 3a are movably arranged.

本実施形態においては、保持部材7の支持部7a、7aがコラムチューブ1の嵌合孔1a、1aに嵌合されると共にコラムハウジング3の長穴3a、3aに収容された状態で、ナット部材6の取付孔6b、6bを介してボルトB、Bが挿入され、その先端部が保持部材7の螺子穴7b、7bに螺合されると、ナット部材6と保持部材7が締結される。このとき、ボルトB、Bの締め付けトルクに応じてコラムハウジング3及びコラムチューブ1が挟持されるので、コラムチューブ1に対し所望の付勢力を付与することができる。   In the present embodiment, the support member 7 a, 7 a of the holding member 7 is fitted in the fitting holes 1 a, 1 a of the column tube 1 and is accommodated in the elongated holes 3 a, 3 a of the column housing 3. When the bolts B and B are inserted through the mounting holes 6 b and 6 b of the No. 6 and the front ends thereof are screwed into the screw holes 7 b and 7 b of the holding member 7, the nut member 6 and the holding member 7 are fastened. At this time, since the column housing 3 and the column tube 1 are clamped according to the tightening torque of the bolts B, B, a desired urging force can be applied to the column tube 1.

また、保持部材7の支持部7a、7aは長穴3a、3a内での軸方向移動は許容されるが、長穴3a、3aの軸方向両端で移動が阻止されるので、ボルトB、Bによって締結されたナット部材6及び保持部材7は、長穴3a、3aで規制される所定距離だけ軸方向移動可能となる。この結果、コラムハウジング3に対しコラムチューブ1がステアリングシャフト2と共に車体前後方向に移動することができる。更に、ステアリングホイール(図示せず)、ひいてはステアリングシャフト2及びコラムチューブ1に対し車両後方(運転者の方向)への引張力が加えられても、保持部材7の支持部7a、7aが長穴3a、3aの軸方向後端に当接した位置で係止されるので、コラムチューブ1がコラムハウジング3から脱落することはない。   Further, the support portions 7a and 7a of the holding member 7 are allowed to move in the axial direction within the elongated holes 3a and 3a, but are prevented from moving at both axial ends of the elongated holes 3a and 3a. The nut member 6 and the holding member 7 fastened by the above-described movement can be moved in the axial direction by a predetermined distance regulated by the long holes 3a and 3a. As a result, the column tube 1 can move with the steering shaft 2 in the longitudinal direction of the vehicle body with respect to the column housing 3. Further, even if a tensile force is applied to the steering wheel (not shown), and thus the steering shaft 2 and the column tube 1 in the rear of the vehicle (in the direction of the driver), the support portions 7a and 7a of the holding member 7 are oblong holes. The column tube 1 is not dropped from the column housing 3 because it is locked at a position where it abuts against the axial rear ends of 3a and 3a.

而して、電動モータ4による螺子軸5の回転駆動に応じて、ナット部材6(及び保持部材7)が螺子軸5の軸方向に移動し、保持部材7、ひいてはコラムチューブ1、ステアリングシャフト2及びステアリングホイール(図示せず)が一体となって軸方向に移動し、ステアリングホイールを所望の車体前後方向位置に調整することができ、長穴3a、3a等はコラムチューブ1の抜け止めとして機能する。尚、取付部6a(取付孔6b)、支持部7a(螺子穴7b)、嵌合孔1a、長穴3a及びボルトBを夫々一つのみで構成することも可能であるが、夫々一対とすることが望ましい。更に、コラムチューブ1とコラムハウジング3との間には、摺動性を考慮しブッシュ(図示せず)を介装することとしてもよい。   Thus, according to the rotational drive of the screw shaft 5 by the electric motor 4, the nut member 6 (and the holding member 7) moves in the axial direction of the screw shaft 5, and the holding member 7, and thus the column tube 1, the steering shaft 2 is moved. And the steering wheel (not shown) integrally move in the axial direction, and the steering wheel can be adjusted to a desired position in the longitudinal direction of the vehicle body, and the long holes 3a, 3a, etc. function as retaining stoppers for the column tube 1. To do. The mounting portion 6a (mounting hole 6b), the support portion 7a (screw hole 7b), the fitting hole 1a, the long hole 3a, and the bolt B can be configured by only one, but a pair each. It is desirable. Furthermore, a bush (not shown) may be interposed between the column tube 1 and the column housing 3 in consideration of slidability.

図5は本発明の他の実施形態を示すもので、ナット部材6と保持部材7との間の締結部材として、前述のボルトB、Bに代えて、合成樹脂製の柱状部材である樹脂カプセルC、Cが用いられている。この実施形態においては、樹脂カプセルC、Cに対して所定値を越える過大な荷重が作用すると破断するように構成されており、樹脂カプセルC、Cの剪断力によって所望の離脱荷重を発生させることができる。尚、その他の構成は前述の実施形態と同様であるので実質的に同一の部材には同一の符合を付して説明を省略する。上記の実施形態においては、ナット部材6及び保持部材7が各図の上方に配設されているが、これに限らず下方あるいは横方向に配設することとしてもよく、自由なレイアウトが可能である。   FIG. 5 shows another embodiment of the present invention. As a fastening member between the nut member 6 and the holding member 7, a resin capsule which is a columnar member made of a synthetic resin instead of the bolts B and B described above. C and C are used. In this embodiment, the resin capsules C and C are configured to be broken when an excessive load exceeding a predetermined value is applied, and a desired detachment load is generated by the shear force of the resin capsules C and C. Can do. In addition, since the other structure is the same as that of the above-mentioned embodiment, it attaches | subjects the same code | symbol to the substantially same member, and abbreviate | omits description. In the above-described embodiment, the nut member 6 and the holding member 7 are disposed in the upper part of each drawing. is there.

以上のように、締結部材(例えばボルトB)の締付力に応じてコラムチューブ1に対し所望の付勢力を付与することができると共に、円滑なテレスコピック作動を確保することができる。しかも、テレスコピック機構(TL)を構成する部品点数を従前に比し大幅に削減することができ、軽量化も可能となる。また、ナット部材6と保持部材7との間の締結部材を合成樹脂製の柱状部材(例えば樹脂カプセルC)とすれば、所望の離脱荷重を発生させることができる。   As described above, a desired urging force can be applied to the column tube 1 according to the tightening force of the fastening member (for example, the bolt B), and a smooth telescopic operation can be ensured. In addition, the number of parts constituting the telescopic mechanism (TL) can be greatly reduced as compared with the conventional one, and the weight can be reduced. Further, if the fastening member between the nut member 6 and the holding member 7 is a synthetic resin columnar member (for example, resin capsule C), a desired detachment load can be generated.

1 コラムチューブ
1a 嵌合孔
2 ステアリングシャフト
3 コラムハウジング
3a 長穴
4 電動モータ
5 螺子軸
6 ナット部材
6a 取付部
7 保持部材
7a 支持部
TL テレスコピック機構
DESCRIPTION OF SYMBOLS 1 Column tube 1a Fitting hole 2 Steering shaft 3 Column housing 3a Long hole 4 Electric motor 5 Screw shaft 6 Nut member 6a Mounting part 7 Holding member 7a Support part TL Telescopic mechanism

Claims (4)

車体に支持されるコラムハウジングと、該コラムハウジングに対し軸方向移動可能に支持されステアリングシャフトを収容するコラムチューブと、該コラムチューブを前記コラムハウジングに対し軸方向に駆動して前記ステアリングシャフトを車体前後方向に駆動するテレスコピック機構を備えた車両のステアリング装置において、前記テレスコピック機構が、前記コラムハウジングに支持される電動モータと、該電動モータの出力軸に連結される螺子軸と、該螺子軸に螺合されるナット部材と、該ナット部材に保持され当該ナット部材と共に前記コラムハウジング及び前記コラムチューブを挟持する保持部材とを備え、前記電動モータによる前記螺子軸の回転駆動に応じて、前記ナット部材が前記保持部材及び前記コラムチューブと共に前記螺子軸の軸方向に移動するように構成されていることを特徴とする車両のステアリング装置。   A column housing supported by a vehicle body, a column tube supported so as to be axially movable with respect to the column housing and containing a steering shaft, and driving the column tube axially with respect to the column housing In a vehicle steering apparatus provided with a telescopic mechanism that drives in the front-rear direction, the telescopic mechanism includes an electric motor supported by the column housing, a screw shaft connected to an output shaft of the electric motor, and a screw shaft. A nut member that is screwed together, and a holding member that is held by the nut member and sandwiches the column housing and the column tube together with the nut member, and the nut according to the rotational drive of the screw shaft by the electric motor The member is in front of the holding member and the column tube. Steering device for a vehicle, characterized by being configured to move in the axial direction of the screw shaft. 前記ナット部材は、前記螺子軸に直交する方向に延在し前記螺子軸に平行な少なくとも一つの取付部を有し、前記保持部材は、前記取付部に対向する位置に少なくとも一つの支持部を有し、前記コラムチューブは、前記保持部材の支持部が嵌合する少なくとも一つの嵌合孔を有し、前記コラムハウジングは、前記螺子軸に平行な少なくとも一つの長穴を有し、該長穴内を前記保持部材の支持部が移動可能に配設されていることを特徴とする請求項1記載の車両のステアリング装置。   The nut member has at least one attachment portion extending in a direction perpendicular to the screw shaft and parallel to the screw shaft, and the holding member has at least one support portion at a position facing the attachment portion. The column tube has at least one fitting hole into which the support portion of the holding member is fitted, and the column housing has at least one elongated hole parallel to the screw shaft. The vehicle steering apparatus according to claim 1, wherein a support portion of the holding member is movably disposed in the hole. 前記ナット部材の取付部と前記保持部材の支持部とを締結する締結部材を備えたことを特徴とする請求項2記載の車両のステアリング装置。   The vehicle steering apparatus according to claim 2, further comprising a fastening member that fastens the attaching portion of the nut member and the support portion of the holding member. 前記締結部材が合成樹脂製の柱状部材であることを特徴とする請求項3記載の車両のステアリング装置。   4. The vehicle steering apparatus according to claim 3, wherein the fastening member is a columnar member made of synthetic resin.
JP2016188268A 2016-09-27 2016-09-27 Vehicular steering device Pending JP2018052210A (en)

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