JP3294672B2 - Height adjustment device - Google Patents
Height adjustment deviceInfo
- Publication number
- JP3294672B2 JP3294672B2 JP13552793A JP13552793A JP3294672B2 JP 3294672 B2 JP3294672 B2 JP 3294672B2 JP 13552793 A JP13552793 A JP 13552793A JP 13552793 A JP13552793 A JP 13552793A JP 3294672 B2 JP3294672 B2 JP 3294672B2
- Authority
- JP
- Japan
- Prior art keywords
- ball screw
- vehicle body
- mounting member
- hollow
- adjusting device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Axle Suspensions And Sidecars For Cycles (AREA)
- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は車両の車高調整装置に関
し、特に螺進機構を用いて車高調整を行う装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for adjusting the height of a vehicle, and more particularly to an apparatus for adjusting the height of a vehicle by using a screw mechanism.
【０００２】[0002]
【従来の技術】従来、車両の車高調整装置としては、米
国特許第３，８２９，１１９号公報に開示されるよう
に、車体側フレームにボールベアリングを介してナット
を回転自在に保持し、このナット内周面にピストンロッ
ドの上端部に形成したねじ部を螺着し、前記ナット外周
面に形成したギヤにウォームを噛合させて、このウォ−
ムをフレキシブルワイヤを介してモータによって回転さ
せることで、ナットが回転してこれに螺合しているピス
トンロッドが上下動することにより、車高を調整するよ
うにしたものが知られている。2. Description of the Related Art Conventionally, as a vehicle height adjusting device, as disclosed in U.S. Pat. No. 3,829,119, a nut is rotatably held on a vehicle body side frame via a ball bearing. A screw formed on the upper end of the piston rod is screwed onto the inner peripheral surface of the nut, and a worm is meshed with a gear formed on the outer peripheral surface of the nut, thereby forming the warp.
There is known an apparatus in which a vehicle is rotated by a motor via a flexible wire, whereby a nut rotates and a piston rod screwed to the nut moves up and down to adjust the vehicle height.
【０００３】[0003]
【発明が解決しようとする課題】上述した従来の車高調
整装置にあっては、ピストンロッドとナットとはねじを
介して係合しているので接触面積が大きく、摩擦抵抗が
大きくなるので、車高調整スピードが遅く、しかも大容
量のモータを用いなければならないので、重量が増加
し、コストも高くなる。In the conventional vehicle height adjusting device described above, the piston rod and the nut are engaged via the screw, so that the contact area is large and the frictional resistance is large. Since the vehicle height adjustment speed is slow and a large-capacity motor must be used, the weight increases and the cost increases.
【０００４】[0004]
【課題を解決するための手段】上記の課題を解決するた
め本発明は、ピストンロッドと車体取付け部材又は車軸
取付け部材との間、或いはシリンダと車体取付け部材又
は車軸取付け部材との間に介装する螺進機構をボールね
じとこのボールねじにボールを介して螺合するナット部
材とで構成し、前記ボールねじ又はナット部材を回転駆
動手段に連結し、前記ボールねじは緩衝器の車体側取付
け部材又は車軸側取付け部材に回転可能に装着され、前
記ナット部材はピストンロッド又はシリンダに設けた中
空部内に固定されてボールねじと連結され、更に前記ボ
ールねじには前記中空部内周面に摺接するガイド部材が
固定されていることを特徴とする。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an interposition between a piston rod and a vehicle body mounting member or an axle mounting member, or between a cylinder and a vehicle body mounting member or an axle mounting member. A ball screw and a nut member screwed to the ball screw via a ball, and the ball screw or the nut member is connected to rotation driving means, and the ball screw is mounted on the vehicle body side of the shock absorber.
Rotatably mounted on the mounting member or axle side mounting member,
The nut member is provided on the piston rod or cylinder.
It is fixed in the space and connected with the ball screw.
The guide screw that slides on the inner peripheral surface of the hollow part is
It is characterized by being fixed .
【０００５】[0005]
【作用】ピストンロッドと車体取付け部材又は車軸取付
け部材との間、或いはシリンダと車体取付け部材又は車
軸取付け部材との間に介装する螺進機構をボールねじ機
構とすることで、出力トルクが小さくて済むので、車高
調整スピードが速くなるとともに、規格品のモータを用
いることができるようになる。The output torque is reduced by using a ball screw mechanism as the screwing mechanism interposed between the piston rod and the vehicle body mounting member or the axle mounting member or between the cylinder and the vehicle body mounting member or the axle mounting member. As a result, the speed of adjusting the vehicle height is increased, and a standard motor can be used.
【０００６】[0006]
【実施例】以下に本発明の実施例を添付図面に基づいて
説明する。ここで、図１は本発明を適用した車高調整装
置の断面図、図２は図１の要部拡大断面図、図３は図２
のＡ−Ａ線に沿う平断面図、図４は本発明の別実施例の
断面図である。Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, FIG. 1 is a sectional view of a vehicle height adjusting apparatus to which the present invention is applied, FIG. 2 is an enlarged sectional view of a main part of FIG. 1, and FIG.
FIG. 4 is a cross-sectional view of another embodiment of the present invention.
【０００７】油圧緩衝器１はシリンダ２内に挿通したピ
ストンロッドである中空ロッド３の先端部にシリンダ２
内周面に摺接する図示しないピストンを固着してなり、
シリンダ２の下端部には車軸を取付ける車軸取付け部材
４が設けられ、またシリンダ２の下端部には連結パイプ
５を介してサブタンク６が連結されている。The hydraulic shock absorber 1 has a cylinder 2 attached to the tip of a hollow rod 3 which is a piston rod inserted into the cylinder 2.
A piston (not shown) that is in sliding contact with the inner peripheral surface is fixed,
An axle mounting member 4 for mounting an axle is provided at a lower end of the cylinder 2, and a sub-tank 6 is connected to a lower end of the cylinder 2 via a connecting pipe 5.
【０００８】そして、この油圧緩衝器１の中空ロッド３
の上部には車高調整装置１１が設けられ、油圧緩衝器１
はこの車高調整装置１１を介して車体側に取付けられ
る。車高調整装置１１は、車体側に取付ける車体取付け
部材１２と油圧緩衝器１の中空ロッド３との間にボール
ねじ１３とこのボールねじ１３にボール１４を介して螺
合するナット部材１５からなるボールねじ螺進機構を介
装し、ボールねじ１３の上端部を回転駆動手段である直
流モータ１６に連結している。The hollow rod 3 of the hydraulic shock absorber 1
A vehicle height adjusting device 11 is provided at the upper part of the hydraulic shock absorber 1.
Is mounted on the vehicle body via the vehicle height adjusting device 11. The vehicle height adjusting device 11 includes a ball screw 13 between a vehicle body mounting member 12 mounted on the vehicle body and the hollow rod 3 of the hydraulic shock absorber 1, and a nut member 15 screwed to the ball screw 13 via a ball 14. A ball screw screwing mechanism is interposed, and the upper end of the ball screw 13 is connected to a DC motor 16 which is a rotation driving means.
【０００９】車体取付け部材１２はアイ１８を装着した
第１キャップ部材１９及び第２キャップ部材２０と、こ
れらの第１，第２キャップ部材１９，２０間に挟持され
ている図３に示すようなギヤハウジング２１とからな
る。As shown in FIG. 3, the vehicle body mounting member 12 is sandwiched between a first cap member 19 and a second cap member 20 having an eye 18 mounted thereon and between the first and second cap members 19 and 20. And a gear housing 21.
【００１０】そして、ボールねじ１３の上端部に螺着し
たナット２２の外周面と第１キャップ部材１９内周面と
の間にボールベアリング２３及びナット２２の断部と第
１キャップ部材１９の内部上端面との間にスラストベア
リング２４を嵌着するとともに、ボールねじ１３の上端
部と第２キャップ部材２０との間にボールベアリング２
５を嵌着して、ボールねじ１３の上端部を車体取付け部
材１２に回転自在に支持している。尚、スラストベアリ
ング２４の回転調整は第１のキャップ部材１９と第２の
キャップ部材２０との間に挿通した図示しない通しボル
トの締付けトルクを調整して行う。Then, between the outer peripheral surface of the nut 22 screwed to the upper end portion of the ball screw 13 and the inner peripheral surface of the first cap member 19, the cut portion of the ball bearing 23 and the nut 22 and the inside of the first cap member 19 A thrust bearing 24 is fitted between the upper end surface and the ball bearing 2 between the upper end of the ball screw 13 and the second cap member 20.
5, the upper end portion of the ball screw 13 is rotatably supported by the vehicle body attachment member 12. The rotation of the thrust bearing 24 is adjusted by adjusting the tightening torque of a through bolt (not shown) inserted between the first cap member 19 and the second cap member 20.
【００１１】また、モータ１６の回転軸１６ａの先端部
をギヤハウジング２１に回転自在に支持し、この回転軸
１６ａにはウォーム２７を一体形成している。一方、ボ
ールねじ１３の上端部には平坦部１３ａを形成してウォ
ーム２７に噛合するウォームホイール２８を取付けてい
る。これにより、モータ１６の回転軸１６ａの回転をウ
ォーム２７及びウォームホイール２８からなる減速機構
を介してボールねじ１３に伝達する。Further, a tip of a rotating shaft 16a of the motor 16 is rotatably supported by the gear housing 21, and a worm 27 is formed integrally with the rotating shaft 16a. On the other hand, a flat portion 13 a is formed at the upper end of the ball screw 13, and a worm wheel 28 that meshes with the worm 27 is attached. Thus, the rotation of the rotation shaft 16 a of the motor 16 is transmitted to the ball screw 13 via the speed reduction mechanism including the worm 27 and the worm wheel 28.
【００１２】ボールねじ１３のウォームホイール２８は
ストッパリング２９とナット２２との間に介装した調整
プレート３０との間で挟持して固定する。ボールねじ１
３のガタ調整は調整プレート３０の厚さによって行う。The worm wheel 28 of the ball screw 13 is clamped and fixed between an adjustment plate 30 interposed between the stopper ring 29 and the nut 22. Ball screw 1
The play adjustment 3 is performed by adjusting the thickness of the adjustment plate 30.
【００１３】一方、油圧緩衝器１の中空ロッド３の上端
部には中空ホルダ３４を螺着し、この中空ホルダ３４の
上端部内周面にナット部材１５を嵌装してストッパリン
グ３５で係止し、更に止めねじ３８で一体に固定してい
る。中空ホルダ３４の外周には車体取付け部材１２の第
２キャップ部材２０の下面に上端部を固着したカバー３
６を垂下して配設している。On the other hand, a hollow holder 34 is screwed onto the upper end of the hollow rod 3 of the hydraulic shock absorber 1, the nut member 15 is fitted on the inner peripheral surface of the upper end of the hollow holder 34, and is locked by a stopper ring 35. Then, they are integrally fixed with set screws 38. A cover 3 having an upper end fixed to the lower surface of the second cap member 20 of the vehicle body attachment member 12 on the outer periphery of the hollow holder 34.
6 is suspended.
【００１４】このカバー３６には軸方向に溝３７を形成
し、止めねじ３８の頭部をカバー３６の溝３７内に摺動
自在に嵌装し、止めねじ３８の頭部とカバー３６に軸方
向に設けた溝３７とでホルダー３４の回り止め部材を構
成している。尚、カバー３６に止めねじを取付け、中空
ホルダ３４及びナット部材１５側にその回り止め部材が
摺動する軸方向の溝を形成することもできる。A groove 37 is formed in the cover 36 in the axial direction, and the head of a set screw 38 is slidably fitted in the groove 37 of the cover 36. The groove 37 provided in the direction constitutes a detent member for the holder 34. Incidentally, a set screw may be attached to the cover 36, and an axial groove in which the rotation preventing member slides may be formed in the hollow holder 34 and the nut member 15 side.
【００１５】中空ホルダ３４の下端部内周面にはカラー
４０を嵌装し、このカラー４０内にボールねじ１３の下
端部を臨ませ、ボールねじ１３の下端にはカラー４０内
周面に摺接するガイド部材４１を装着し、ガイド部材４
１の外周面にはテフロンリング４２を嵌装している。A collar 40 is fitted on the inner peripheral surface of the lower end of the hollow holder 34, the lower end of the ball screw 13 faces the inside of the collar 40, and the lower end of the ball screw 13 slides on the inner peripheral surface of the collar 40. The guide member 41 is attached, and the guide member 4
A Teflon ring 42 is fitted on the outer peripheral surface of the first member 1.
【００１６】また、カラー４０内にはガイド部材４２の
上方向への移動を規制するストッパ部材４３を嵌着し、
カラー４０の下端のフランジ部をストッパ部材４４とな
し、更にカラー４０の下端面と中空ホルダ３４の内端部
との間及びカラー４０の上端面とナット部材１５の下端
面との間はそれぞれ緩衝部材（ラバー板或いはＯ−リン
グ）４５，４６を介装している。A stopper member 43 for restricting the upward movement of the guide member 42 is fitted into the collar 40.
A flange member at the lower end of the collar 40 is formed as a stopper member 44, and a buffer is provided between the lower end surface of the collar 40 and the inner end of the hollow holder 34 and between the upper end surface of the collar 40 and the lower end surface of the nut member 15, respectively. Members (rubber plates or O-rings) 45 and 46 are interposed.
【００１７】そして、中空ホルダ３４の下端部外周面に
設けたストッパ部３４ａでアッパスプリングシート４７
を保持し、油圧緩衝器１のシリンダ２外周面に設けたア
ンダスプリングシート４８との間に懸架ばね４９を介設
している。また、中空ホルダ３４の下端には中空ロッド
３にロックナット５１が螺着され、ロックナット５１の
外部に硬質ラバー５２が設けられ、硬質ラバー５２の下
側に軟質ウレタンラバー５３が設けられて、これらでス
トッパーラバーを構成している。The stopper portion 34a provided on the outer peripheral surface of the lower end portion of the hollow holder 34 allows the upper spring seat 47 to be closed.
And a suspension spring 49 is interposed between the hydraulic shock absorber 1 and an under spring seat 48 provided on the outer peripheral surface of the cylinder 2. A lock nut 51 is screwed onto the hollow rod 3 at the lower end of the hollow holder 34, a hard rubber 52 is provided outside the lock nut 51, and a soft urethane rubber 53 is provided below the hard rubber 52. These constitute a stopper rubber.
【００１８】更に、中空ホルダ３４の下端内部には中空
ロッド３内に挿通した減衰力調整用のアジャスタロッド
５４を上下動させるためのアジャスタ５５が軸方向と直
交する方向に進退可能に設けられている。An adjuster 55 for vertically moving an adjuster rod 54 for adjusting a damping force inserted into the hollow rod 3 is provided inside the lower end of the hollow holder 34 so as to be able to advance and retreat in a direction perpendicular to the axial direction. I have.
【００１９】続いて以上のように構成された車高調整装
置１１の作用について説明すると、モータ１６を回転駆
動することによってウォーム２７とウォームホイール２
８で減速されてボールねじ１３が回転する。Next, the operation of the vehicle height adjusting device 11 configured as described above will be described. The worm 27 and the worm wheel 2 are driven by rotating the motor 16.
8, the ball screw 13 rotates.
【００２０】このとき、ボールねじ１３にボール１４を
介して螺合してするナット部材１５及び中空ロッド３に
固定された中空ホルダ３４は、カバー３６との間で回り
止め部材３８と溝３７との係合によって回り止めされて
いるので、ボールねじ１３が回転することによって、そ
の回転方向に応じて中空ホルダ３４が中空ロッド３を伴
って上動又は下動する。At this time, the nut member 15 screwed to the ball screw 13 via the ball 14 and the hollow holder 34 fixed to the hollow rod 3 are provided between the cover 36 and the detent member 38 and the groove 37. When the ball screw 13 rotates, the hollow holder 34 moves up or down with the hollow rod 3 in accordance with the rotation direction.
【００２１】この中空ホルダ３４の上動又は下動によっ
て車体取付け部材１２と車軸取付け部材４の間の長さが
変り車高が調整される。The length between the vehicle body mounting member 12 and the axle mounting member 4 changes due to the upward or downward movement of the hollow holder 34, and the vehicle height is adjusted.
【００２２】ここで、この車高調整装置１１にあって
は、中空ロッド３の上端部と車体側との間に介装した螺
進機構としてボールねじ１３及びこのボールねじ１３に
ボール１４を介して螺合しているナット部材１５からな
るボールねじ螺進機構を用いているので、ボールねじ１
３を回転させるための回転駆動手段の出力トルクが小さ
く（通常のねじに比べて１／３以下）なり、車高調整の
スピードが向上するとともに、モータ１６として規格品
のモータを用いることができるため、重量の低下及びコ
ストの低減を図ることができる。Here, in the vehicle height adjusting device 11, a ball screw 13 is provided as a screwing mechanism interposed between the upper end of the hollow rod 3 and the vehicle body side, and a ball 14 is connected to the ball screw 13. Since the ball screw screwing mechanism including the nut member 15 screwed together is used, the ball screw 1
The output torque of the rotation driving means for rotating the motor 3 becomes smaller (１ ／ or less than that of a normal screw), the speed of adjusting the vehicle height is improved, and a standard motor can be used as the motor 16. Therefore, weight reduction and cost reduction can be achieved.
【００２３】また、ボールねじ１３を緩衝器１の車体側
取付け部材１２（又は車軸側取付け部材でも同様）に回
転可能に支持し、ナット部材１５を中空ロッド３に連結
しているので、車体側フレーム（又は車軸側ロワアー
ム）に対して中空ロッドが変位しないため、車体側（又
は車軸側）のスペースを広くとることができる。Further, since the ball screw 13 is rotatably supported by the vehicle-body-side mounting member 12 (or the axle-side mounting member) of the shock absorber 1 and the nut member 15 is connected to the hollow rod 3, the ball screw 13 is connected to the vehicle body. Since the hollow rod is not displaced with respect to the frame (or the axle side lower arm), the space on the vehicle body side (or the axle side) can be widened.
【００２４】更にボールねじ１３には中空ホルダ３４内
周面に摺接するガイド部材４１を固定しているので、ボ
ールねじ１３とガイド部材４１との二点支持によって耐
横方向荷重がアップする。Further, since the guide member 41 which is in sliding contact with the inner peripheral surface of the hollow holder 34 is fixed to the ball screw 13, the lateral load resistance increases due to the two-point support of the ball screw 13 and the guide member 41.
【００２５】中空ホルダ３４内周面にカラー４０を嵌装
し、このカラー４０の軸方向端部内周の少なくとも一方
にガイド部材４１が当接するストッパ部材４３を設け、
カラー４０の端部と中空ホルダ３４の端部との間に緩衝
部材４６を設けたので、モータ１６停止後の回転子のオ
ーバーランやモータ１６の異常等によるオーバーランが
発生した場合、緩衝部材４６が損傷することを防止でき
る。カラー４５下端の緩衝部材４５についても中空ホル
ダ３４の底面がストッパ部材４４となるので、同様であ
る。A collar 40 is fitted on the inner peripheral surface of the hollow holder 34, and a stopper member 43 is provided on at least one of the inner peripheral ends of the collar 40 in the axial direction.
Since the buffer member 46 is provided between the end of the collar 40 and the end of the hollow holder 34, if the rotor 16 is overrun after the motor 16 is stopped or an overrun occurs due to an abnormality of the motor 16, the buffer member is provided. 46 can be prevented from being damaged. The same applies to the buffer member 45 at the lower end of the collar 45 because the bottom surface of the hollow holder 34 serves as the stopper member 44.
【００２６】即ち、オーバーランによってガイド部材４
１が中空ホルダ３４上終端や下終端部に当接することが
あるが、この場合カラー４０を設けないで緩衝部材を設
けると、ガイド部材４１が回転しているため緩衝部材と
衝突した際に緩衝部材によじれが生じたりして緩衝が行
われなかったり、緩衝部材がむしれて破損することがあ
る。これに対してカラー４０及びストッパ部材４３を設
けることによって、カラー４０と緩衝部材４６との間に
は、ガイド部材４１がカラー４０内周のストッパ部材４
３に衝突した場合の軸方向の力のみが主に作用するの
で、緩衝部材４６のよじれや損傷が生じない。That is, the guide member 4 is caused by overrun.
1 may come into contact with the upper and lower ends of the hollow holder 34. In this case, if the cushioning member is provided without providing the collar 40, the cushioning member is provided when the guide member 41 is rotated and collides with the cushioning member. The buffer may not be buffered due to kinking of the member, or the buffer member may be peeled and damaged. On the other hand, by providing the collar 40 and the stopper member 43, the guide member 41 is provided between the collar 40 and the buffer member 46 so that the stopper member 4 on the inner periphery of the collar 40 is provided.
Since only the axial force in the case of collision with 3 mainly acts, the damping member 46 is not kinked or damaged.
【００２７】しかもガイド部材４１の外周に低フリクシ
ョン部材であるテフロンリング４２を嵌装しているの
で、ガイド部材４１の回転がカラー４０に伝達されるの
をキャンセル或いは低減することができ、上記の効果は
一層大きくなる。Further, since the Teflon ring 42, which is a low friction member, is fitted around the outer periphery of the guide member 41, the transmission of the rotation of the guide member 41 to the collar 40 can be canceled or reduced. The effect is even greater.
【００２８】また、ボールねじ１３を軸方向荷重を受け
るスラストベアリング２４，３１を介して車体側取付け
部材１２（又は車軸側取付け部材でも同様）に回転可能
に支持しているので、緩衝器１のバウンド，リバウンド
に伴う軸方向荷重がナット１５を介してボールねじ１３
に加わり、この軸方向荷重がウォームホイール２８及び
ウォーム２７を介してモータ１６に負荷として作用して
モータ１６の出力が安定しなくなることを防止でき、モ
ータ１６の回転がスムーズに行える。Since the ball screw 13 is rotatably supported on the vehicle body-side mounting member 12 (or the same for the axle-side mounting member) via thrust bearings 24 and 31 which receive an axial load, the shock absorber 1 is mounted on the ball screw 13. The axial load accompanying the bounce and rebound is applied to the ball screw 13 via the nut 15.
In addition, it is possible to prevent the axial load from acting as a load on the motor 16 via the worm wheel 28 and the worm 27, thereby preventing the output of the motor 16 from becoming unstable, so that the rotation of the motor 16 can be performed smoothly.
【００２９】尚、上記実施例ではボールベアリング（ラ
ジアルベアリング）とスラストベアリングを組合わせて
いるが、これに代えて１つのアンギュラーコンタクトベ
アリングを用いることもできる。In the above embodiment, a ball bearing (radial bearing) and a thrust bearing are combined, but a single angular contact bearing may be used instead.
【００３０】更に、ボールねじ１３に軸方向荷重が作用
するとねじ部での摩擦抵抗が少ない分だけボールねじ１
３又はナット部材１５の一方が容易に回転するが、モー
タ１６とボールねじ１３との間にウォーム２７及びウォ
ームホイール２８からなる減速機構を介することによっ
て、ボールねじ１３の一方に軸方向荷重がかかってもウ
ォームホール２８からウォーム２７に回転が伝わらない
ので、設定車高位置に保持することができる。Further, when an axial load is applied to the ball screw 13, the ball screw 1 is reduced by the frictional resistance at the threaded portion.
3 or one of the nut members 15 is easily rotated, but an axial load is applied to one of the ball screws 13 by interposing a reduction mechanism including a worm 27 and a worm wheel 28 between the motor 16 and the ball screw 13. However, since the rotation is not transmitted from the worm hole 28 to the worm 27, the vehicle can be held at the set vehicle height position.
【００３１】次に、図４に示す別実施例は、油圧緩衝器
のシリンダと車軸側との間に螺進機構を設けた例であ
る。油圧緩衝器６１はシリンダ６２内に挿通したピスト
ンロッド６３の先端部にシリンダ６２内周面に摺接する
ピストン６４を固着してなり、ピストンロッド６３の上
端部には車体側に取付ける車体取付け部材６５が設けら
れている。Another embodiment shown in FIG. 4 is an example in which a screwing mechanism is provided between the cylinder of the hydraulic shock absorber and the axle side. The hydraulic shock absorber 61 has a piston 64 slidably in contact with the inner peripheral surface of the cylinder 62 fixed to the tip end of a piston rod 63 inserted into the cylinder 62, and a vehicle body mounting member 65 mounted on the vehicle body side at the upper end of the piston rod 63. Is provided.
【００３２】そして、この油圧緩衝器６１のシリンダ６
２の下部には車高調整装置７１が設けられ、油圧緩衝器
６１はこの車高調整装置７１を介して車軸側に取付けら
れる。車高調整装置７１は前記の車高調整装置１１と略
同様に構成され、車軸側に取付ける車軸取付け部材７２
と油圧緩衝器６１のシリンダ６２との間にボールねじ７
３とこのボールねじ７３にボール７４を介して螺合する
ナット部材７５からなるボールねじ螺進機構を介装し、
ボールねじ７３の下端部を図示しない回転駆動手段であ
る直流モータに連結している。The cylinder 6 of the hydraulic shock absorber 61
A vehicle height adjusting device 71 is provided at a lower portion of the vehicle 2, and the hydraulic shock absorber 61 is mounted on the axle side via the vehicle height adjusting device 71. The vehicle height adjusting device 71 has substantially the same configuration as the vehicle height adjusting device 11, and includes an axle mounting member 72 mounted on the axle side.
Between the ball screw 7 and the cylinder 62 of the hydraulic shock absorber 61
3 and a ball screw screwing mechanism comprising a nut member 75 screwed to the ball screw 73 via a ball 74,
The lower end of the ball screw 73 is connected to a DC motor which is a rotation driving means (not shown).
【００３３】ボールねじ７３の下端部は車軸取付け部材
７２の内周下端部に嵌着したベアリング７６にて回転自
在に支持され、図示しないモータの回転軸に形成したウ
ォーム７７にボールねじ７３の下端部に嵌着したウォー
ムホイール７８を噛合している。The lower end of the ball screw 73 is rotatably supported by a bearing 76 fitted on the lower end of the inner periphery of the axle mounting member 72. The lower end of the ball screw 73 is mounted on a worm 77 formed on a rotating shaft of a motor (not shown). The worm wheel 78 fitted to the portion is engaged.
【００３４】また、油圧緩衝器６１のシリンダ６２の下
側にはシリンダ６２と一体的に中空ホルダ８０を形成
し、この中空ホルダ８０内にナット部材７５を固定し、
中空ホルダ８０の外周には車軸取付け部材７２と一体的
に形成したカバー８１を配設し、ボールねじ７３の上端
部に中空ホルダ８０内周面に摺接するガイド部材８２を
装着している。尚、その他の構成は前記車高調整装置１
１と同様であるので、その説明を省略する。On the lower side of the cylinder 62 of the hydraulic shock absorber 61, a hollow holder 80 is formed integrally with the cylinder 62, and a nut member 75 is fixed in the hollow holder 80.
A cover 81 formed integrally with the axle mounting member 72 is provided on the outer periphery of the hollow holder 80, and a guide member 82 that is in sliding contact with the inner peripheral surface of the hollow holder 80 is attached to the upper end of the ball screw 73. The other components are the same as the vehicle height adjusting device 1.
1 and the description thereof is omitted.
【００３５】以上のように油圧緩衝器６１のシリンダ６
２と車軸側との間に車高調整装置７１を設けた場合に
も、前記実施例と同様の作用効果が得られる。尚、上記
各実施例では、緩衝器のピストンロッドと車体側又はシ
リンダと車軸側との間に車高調整装置の螺進機構を設け
た例について述べたが、ピストンロッドと車軸側又はシ
リンダと車体側との間に車高調整装置の螺進機構を設け
ることもできる。As described above, the cylinder 6 of the hydraulic shock absorber 61
When the vehicle height adjusting device 71 is provided between the vehicle 2 and the axle side, the same operation and effect as those of the above embodiment can be obtained. In each of the above embodiments, the example in which the screwing mechanism of the vehicle height adjustment device is provided between the piston rod of the shock absorber and the vehicle body side or between the cylinder and the axle side, but the piston rod and the axle side or cylinder are provided. A screwing mechanism of the vehicle height adjustment device may be provided between the vehicle and the vehicle body.
【００３６】[0036]
【発明の効果】以上に説明したように本発明によれば、
ピストンロッドと車体取付け部材又は車軸取付け部材と
の間、或いはシリンダと車体取付け部材又は車軸取付け
部材との間に介装する螺進機構をボールねじとこのボー
ルねじにボールを介して螺合するナット部材とで構成
し、前記ボールねじ又はナット部材を回転駆動手段に連
結し、前記ボールねじは緩衝器の車体側取付け部材又は
車軸側取付け部材に回転可能に装着され、前記ナット部
材はピストンロッド又はシリンダに設けた中空部内に固
定されてボールねじと連結され、更に前記ボールねじに
は前記中空部内周面に摺接するガイド部材が固定されて
いるので、車高調整スピードが向上し、駆動モータの小
容量化による重量の低下及びコストダウンを図ることが
できる。According to the present invention as described above,
A ball screw and a nut for screwing a screwing mechanism interposed between the piston rod and the vehicle body mounting member or the axle mounting member or between the cylinder and the vehicle body mounting member or the axle mounting member via the ball. And the ball screw or nut member is connected to a rotation driving means, and the ball screw is a vehicle body side mounting member of the shock absorber or
The nut part is rotatably mounted on the axle-side mounting member.
The material is fixed in the hollow part provided in the piston rod or cylinder.
And connected with the ball screw,
The guide member that slides on the inner peripheral surface of the hollow portion is fixed.
As a result, the speed of adjusting the vehicle height can be improved, and the weight and cost can be reduced by reducing the capacity of the drive motor.
【００３７】特に本発明は、ボールねじを緩衝器の車体
側取付け部材又は車軸側取付け部材に回転可能に装着さ
れ、ナット部材をピストンロッド又はシリンダに連結し
たので、緩衝器が取り付けられる相手方のスペースを広
く取ることができる。更に、ボールねじを緩衝器の車体
側取付け部材又は車軸側取付け部材に回転可能に装着
し、ナット部材をピストンロッド又はシリンダに設けた
中空部内に固定してボールねじと連結し、ボールねじに
は中空部内周面に摺接するガイド部材を固定したので、
耐横方向荷重をアップすることができる。In particular, according to the present invention, the ball screw is rotatably mounted on the vehicle body-side mounting member or the axle-side mounting member of the shock absorber, and the nut member is connected to the piston rod or the cylinder. Can be widely taken. Further, the ball screw is rotatably mounted on the vehicle body-side mounting member or the axle-side mounting member of the shock absorber, and the nut member is fixed in a hollow portion provided in the piston rod or the cylinder and connected to the ball screw. Since the guide member that slides on the inner peripheral surface of the hollow part is fixed,
Lateral load resistance can be increased.
【００３８】さらに、中空ホルダ内周面にカラーを嵌装
し、このカラーの軸方向端部内周の少なくとも一方にガ
イド部材が当接するストッパ部材を設け、カラーの端部
と中空ホルダの端部との間に緩衝部材を設けたので、オ
ーバランが生じた場合の緩衝部材のよじれや損傷を防止
できる。また、ボールねじが軸方向荷重を受けるスラス
トベアリングを介して緩衝器の車体側取付け部材又は車
軸側取付け部材に回転可能に装着されているので、緩衝
器のバウンド，リバウンドに伴う軸方向荷重がモータに
作用しなくなって回転がスムーズになる。更に、ボール
ねじがウォームとウォームホイールよりなる減速機構を
介して回転駆動手段に連結されているので、設定車高位
置を容易に保持することができる。Further, a collar is fitted on the inner peripheral surface of the hollow holder, and a stopper member is provided on at least one of the inner peripheral ends in the axial direction of the collar so that a guide member is in contact with the collar. Since the cushioning member is provided between them, kinking and damage of the cushioning member when overrun occurs can be prevented. Also, since the ball screw is rotatably mounted on the vehicle body-side mounting member or the axle-side mounting member of the shock absorber via a thrust bearing that receives an axial load, the axial load accompanying the bounce and rebound of the shock absorber is reduced. And the rotation becomes smooth. Further, since the ball screw is connected to the rotation driving means via the speed reduction mechanism including the worm and the worm wheel, the set vehicle height position can be easily maintained.
【図１】本発明を適用した車高調整装置の断面図FIG. 1 is a sectional view of a vehicle height adjusting device to which the present invention is applied.
【図２】図１の要部拡大断面図FIG. 2 is an enlarged sectional view of a main part of FIG. 1;
【図３】図２のＡ−Ａ線に沿う平断面図FIG. 3 is a plan sectional view taken along line AA of FIG. 2;
【図４】本発明の別実施例の断面図FIG. 4 is a sectional view of another embodiment of the present invention.
１…油圧緩衝器、２…シリンダ、３…中空ロッド、４…
車軸取付け部材、１１…車高調整装置、１２…車体取付
け部材、１３…ボールねじ、１４…ボール、１５…ナッ
ト部材、１６…直流モータ、２１…ギヤハウジング、２
４，３１…スラストベアリング、２７…ウォーム、２８
…ウォームホイール、３４…中空ホルダ、３６…カバ
ー、３８…止めねじ、４０…カラー、４１…ガイド部
材、４３…ストッパ部材、４５，４６…緩衝部材。1 ... hydraulic shock absorber, 2 ... cylinder, 3 ... hollow rod, 4 ...
Axle mounting member, 11: Vehicle height adjusting device, 12: Vehicle body mounting member, 13: Ball screw, 14: Ball, 15: Nut member, 16: DC motor, 21: Gear housing, 2
4, 31 ... thrust bearing, 27 ... worm, 28
... worm wheel, 34 ... hollow holder, 36 ... cover, 38 ... set screw, 40 ... collar, 41 ... guide member, 43 ... stopper member, 45, 46 ... buffer member.
フロントページの続き (56)参考文献 特開 昭58−149875（ＪＰ，Ａ) 特開 昭61−238581（ＪＰ，Ａ) 実公 昭46−13122（ＪＰ，Ｙ１) 米国特許3829119（ＵＳ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) F16F 9/46 B62K 25/08 Continuation of the front page (56) References JP-A-58-149875 (JP, A) JP-A-61-238581 (JP, A) Jiko 46-13122 (JP, Y1) US Patent 3,829,119 (US, A) (58) Field surveyed (Int. Cl. 7 , DB name) F16F 9/46 B62K 25/08
Claims (4)
器のピストンロッドを前記車体側又は車軸側との間に螺
進機構を介して変位可能に取付けた車高調整装置におい
て、 前記螺進機構はボールねじとこのボールねじにボールを
介して螺合するナット部材からなり、前記ボールねじ又
はナット部材のいずれか一方が回転駆動手段に連結さ
れ、 前記ボールねじは緩衝器の車体側取付け部材又は車軸側
取付け部材に回転可能に装着され、前記ナット部材はピ
ストンロッド又はシリンダに設けた中空部内に固定され
てボールねじと連結され、更に前記ボールねじには前記
中空部内周面に摺接するガイド部材が固定されている、 ことを特徴とする車高調整装置。1. A vehicle height adjusting device in which a piston rod of a shock absorber interposed between a vehicle body side and an axle side is displaceably mounted between the vehicle body side and the axle side via a screwing mechanism. The screw advance mechanism comprises a ball screw and a nut member screwed to the ball screw via a ball, one of the ball screw or the nut member is connected to a rotation driving means, and the ball screw is a Body side mounting member or axle side
The nut member is rotatably mounted on the mounting member, and the nut member is
It is fixed in the hollow part provided in the stone rod or cylinder.
The ball screw is connected to the
A vehicle height adjusting device, wherein a guide member slidingly contacting the inner peripheral surface of the hollow portion is fixed .
器のシリンダを前記車体側又は車軸側との間に螺進機構
を介して変位可能に取付けた車高調整装置において、 前記螺進機構はボールねじとこのボールねじにボールを
介して螺合するナット部材からなり、前記ボールねじ又
はナット部材のいずれか一方が回転駆動手段に連結さ
れ、前記ボールねじは緩衝器の車体側取付け部材又は車軸側
取付け部材に回転可能に装着され、前記ナット部材はピ
ストンロッド又はシリンダに設けた中空部内に固定され
てボールねじと連結され、更に前記ボールねじには前記
中空部内周面に摺接するガイド部材が固定されている、 ことを特徴とする車高調整装置。2. A vehicle height adjusting device in which a cylinder of a shock absorber interposed between a vehicle body side and an axle side is displaceably mounted between the vehicle body side and the axle side via a screwing mechanism. The screwing mechanism includes a ball screw and a nut member screwed to the ball screw via a ball. Either the ball screw or the nut member is connected to rotation driving means, and the ball screw is a vehicle body of a shock absorber. Side mounting member or axle side
The nut member is rotatably mounted on the mounting member, and the nut member is
It is fixed in the hollow part provided in the stone rod or cylinder.
The ball screw is connected to the
A vehicle height adjusting device, wherein a guide member slidingly contacting the inner peripheral surface of the hollow portion is fixed .
には緩衝器の車体側取付け部材又は車軸取付け部材に設
けたカバーを配設し、このカバー及び前記ホルダのいず
れか一方に軸方向の溝を形成し、他方に前記溝に係合す
る回り止め部材を設けたことを特徴とする請求項１また
は請求項２のいずかに記載の車高調整装置。3. A cover provided on a vehicle body-side mounting member or an axle mounting member of a shock absorber is provided on an outer periphery of a hollow holder defining the hollow portion, and one of the cover and the holder is provided in an axial direction. groove is formed of, also claim 1, characterized in that a detent member engaging the groove in the other
A vehicle height adjusting device according to claim 2 .
され、このカラーの軸方向端部内周の少なくとも一方に
ガイド部材が当接するストッパ部材が設けられ、前記カ
ラーの端部と中空ホルダの端部との間に緩衝部材が設け
られていることを特徴とする請求項１、請求項２または
請求項３のいずれかに記載の車高調整装置。4. A collar is fitted on the inner peripheral surface of the hollow holder, and a stopper member is provided on at least one of the inner peripheral ends of the collar in contact with a guide member, and the end of the collar and the hollow holder are provided. 3. A cushioning member is provided between the end portion and the end portion.
The vehicle height adjusting device according to claim 3 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13552793A JP3294672B2 (en) | 1993-06-07 | 1993-06-07 | Height adjustment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13552793A JP3294672B2 (en) | 1993-06-07 | 1993-06-07 | Height adjustment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06346941A JPH06346941A (en) | 1994-12-20 |
| JP3294672B2 true JP3294672B2 (en) | 2002-06-24 |
Family
ID=15153861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13552793A Expired - Fee Related JP3294672B2 (en) | 1993-06-07 | 1993-06-07 | Height adjustment device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3294672B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7237779B2 (en) | 2003-02-18 | 2007-07-03 | Nissan Motor Co., Ltd. | Vehicle height adjusting apparatus |
| KR102339177B1 (en) * | 2020-12-07 | 2021-12-14 | 한화시스템 주식회사 | Complex Stopper Assembly |
| EP2773553B1 (en) | 2011-11-06 | 2022-03-02 | Tractive Suspension B.V. | Adjustable telescopic fork for a motorcycle with built in electric motor , externally adjustable fork tube assembly, suspension system and motorcycle comprising the same |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4667338B2 (en) * | 2006-10-11 | 2011-04-13 | カヤバ工業株式会社 | Shock absorber |
| JP5260936B2 (en) | 2007-10-25 | 2013-08-14 | トヨタ自動車株式会社 | Electromagnetic shock absorber for vehicles |
| CN102278506B (en) * | 2011-06-16 | 2013-01-23 | 伯特利阀门集团有限公司 | High-performance slow-shut check valve |
| JP7208772B2 (en) * | 2018-11-26 | 2023-01-19 | Ｋｙｂ株式会社 | Vehicle height adjustment device |
| CN116175518A (en) * | 2023-04-28 | 2023-05-30 | 融域智慧(西安)智能科技有限公司 | Lifting mechanical clamping device |
-
1993
- 1993-06-07 JP JP13552793A patent/JP3294672B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7237779B2 (en) | 2003-02-18 | 2007-07-03 | Nissan Motor Co., Ltd. | Vehicle height adjusting apparatus |
| EP2773553B1 (en) | 2011-11-06 | 2022-03-02 | Tractive Suspension B.V. | Adjustable telescopic fork for a motorcycle with built in electric motor , externally adjustable fork tube assembly, suspension system and motorcycle comprising the same |
| KR102339177B1 (en) * | 2020-12-07 | 2021-12-14 | 한화시스템 주식회사 | Complex Stopper Assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06346941A (en) | 1994-12-20 |
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