JPH02173450A - Continuously variable transmission - Google Patents

Continuously variable transmission

Info

Publication number
JPH02173450A
JPH02173450A JP32814188A JP32814188A JPH02173450A JP H02173450 A JPH02173450 A JP H02173450A JP 32814188 A JP32814188 A JP 32814188A JP 32814188 A JP32814188 A JP 32814188A JP H02173450 A JPH02173450 A JP H02173450A
Authority
JP
Japan
Prior art keywords
rotating member
taper cone
tapered
continuously variable
cone
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.)
Pending
Application number
JP32814188A
Other languages
Japanese (ja)
Inventor
Makoto Sagata
嵯峨田 信
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP32814188A priority Critical patent/JPH02173450A/en
Publication of JPH02173450A publication Critical patent/JPH02173450A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To enable each tapered cone to be brought into contact with a rotary member at a uniform pressure with a simplified structure by swivelably supporting the tapered cone to be energized by a transmitting member. CONSTITUTION:In a continuously variable transmission device, a supporting part 9 is formed so as to perform oscillation by a semicircular recessed part 25a formed in a member 25 supporting an input pulley side to a transmitting shaft 2 and a protruding part formed in a holder 8 so as to be engaged with this recessed part 25a. While in place of an automatic pressure governing mechanism A, a compression spring 28 is used generating urging force acting on a transmitting member 6. Further respectively forming a rotary member in a disk type and the transmitting member in a ring type, a tapered cone 7 is formed so as to be swiveled in the inner.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、夫々回転動力が伝えられる複数のテーパコー
ンを有し、夫々のテーパコーンのテーパ面に対する接触
位置の変更によって、変速動力を取出す回転部材を有し
て成る無段変速装置に関し、詳しくは、テーパコーンと
回転部材とを圧接するための技術に関するものである。
Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a rotating member that has a plurality of tapered cones to which rotational power is transmitted, and that extracts shifting power by changing the contact position of each tapered cone with respect to a tapered surface. The present invention relates to a continuously variable transmission including a continuously variable transmission, and specifically relates to a technique for press-contacting a tapered cone and a rotating member.

〔従来の技術〕[Conventional technology]

従来、冒記のようにテーパコーンに対する回転部材の接
触位置の変更によって変速動力を取出すよう構成されて
いる無段変速装置としては、実開昭63−6265号公
報に示されるもの等が存在し、この引例ではテーパコー
ンを、その回転軸芯に沿う方向にスライド移動できるよ
う支持すると共に、テーパコーンを軸芯方向に沿ってバ
ネ等で付勢することで、テーパコーンと回転部材との圧
接を図っている。
Conventionally, as a continuously variable transmission device configured to extract shifting power by changing the contact position of a rotating member with respect to a taper cone as described above, there is a device such as that shown in Japanese Utility Model Application Publication No. 63-6265, In this reference, the taper cone is supported so that it can slide in the direction along its rotational axis, and the taper cone is urged along the axis using a spring or the like to press the taper cone and the rotating member. .

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

ここで、冒記のようにテーパコーンと回転部材との圧接
によって動力が伝えられる構造の無段変速装置を考える
に、複数のテーパコーン夫々を均等の圧力で回転部材に
接触させることが理想である。
Here, when considering a continuously variable transmission having a structure in which power is transmitted by pressure contact between a taper cone and a rotating member as described above, it is ideal to bring each of the plurality of taper cones into contact with the rotating member with equal pressure.

つまり、複数のテーパコーンの回転部材に対する圧接力
が不均一であると、高い圧接力のテーパコーンに対して
のみ強い負荷が作用することになって、そのテーパコー
ンの傷みを促進させることとなって装置全体の寿命も縮
めることに繋がるのである。
In other words, if the pressure contact forces of multiple taper cones against the rotating member are uneven, a strong load will be applied only to the tapered cone with a high pressure contact force, which will accelerate damage to the taper cone and cause the entire device to be damaged. This also leads to a shorter lifespan.

そこで、前記引例のように夫々のテーパコーンに調圧の
ための機構を設けることも考えられるが、テーパコーン
夫々に調圧のための機構を設けようとすると部品数の増
大に繋がるばかりで無く、構造の複雑化に繋がることに
なる。特に、この引例のようにテーパコーンが、その軸
芯方向にスライド移動する構造のものでは、軸芯精度を
高く維持し乍ら、強い付勢力に耐える必要性から、スラ
イドを許す軸部分の大径化にも繋がり、改善の余地があ
る。
Therefore, it is conceivable to provide a mechanism for regulating pressure in each taper cone as in the above cited example, but if you try to provide a mechanism for regulating pressure in each taper cone, it will not only lead to an increase in the number of parts, but also cause problems in the structure. This will lead to complications. In particular, in the case of a structure in which the taper cone slides in the axial direction as in this reference, the diameter of the shaft portion that allows sliding is large due to the need to withstand strong biasing force while maintaining high axial accuracy. There is room for improvement.

本発明の目的は、複数のテーパコーン夫々と回転部材と
を均等な圧力で接触させるための構造を、できるだけ簡
単に設ける点にある。
An object of the present invention is to provide a structure as simple as possible for bringing a plurality of taper cones into contact with a rotating member with equal pressure.

〔課題を解決するための手段〕 本発明の特徴は冒記のようにテーパコーン、回転部材を
有する無段変速装置において、テーパコーンの回転部材
の側への揺動変位を許す支持部を形成すると共に、テー
パコーンとの接触によって、テーパコーンを回転部材の
側に圧接させ、かつ、テーパコーンに回転動力を伝える
伝動部材を設けて成る点にあり、その作用、及び、効果
は次の通りである。
[Means for Solving the Problems] As described above, the present invention is characterized in that in a continuously variable transmission having a taper cone and a rotating member, a supporting portion is formed that allows the tapered cone to swing toward the rotating member, and , a transmission member is provided which brings the taper cone into pressure contact with the rotating member by contact with the taper cone and transmits rotational power to the taper cone, and its functions and effects are as follows.

〔作 用〕[For production]

上記特徴を例えば第1図に示すように構成すると、伝動
部材(6)のテーパコーン(7)・・夫々に対する圧接
力は、テーパコーン(7)、、J々を回転部材(10)
の側に揺動させると共に、テーパコーン(7)・・夫々
と回転部材(10)との圧接力として作用することにな
る。
If the above characteristics are configured as shown in FIG. 1, for example, the pressing force of the transmission member (6) against each of the tapered cones (7), etc. will be applied to the tapered cones (7), .
At the same time, the tapered cone (7) acts as a pressing force between the rotating member (10) and the rotating member (10).

つまり、伝動部材(6)に圧接力を発生させるため、単
一のハネ等を設けても、そのハネ等からの付勢は、複数
のテーパコーン(7) 、 、夫々に分配されて、この
ように分配された付勢によってテーパコーン(7)・・
と回転部材(10)とを圧接させることが可能となるの
である。
In other words, even if a single spring or the like is provided to generate a pressure contact force on the transmission member (6), the bias from the spring or the like is distributed to each of the plurality of taper cones (7). The taper cone (7)...
This makes it possible to bring the rotating member (10) into pressure contact with each other.

又、本発明では、テーパコーン(7)・・夫々を揺動可
能に支持するので、前記引例のようにテーパコーン(7
)をスライド移動自在に支持するものと比較して、小型
の簡単な構造で相応の強度と高い精度に支持部(9)を
構成できることになる。
Further, in the present invention, each of the taper cones (7) is supported in a swingable manner.
), the support part (9) can be constructed with a small and simple structure, with appropriate strength and high precision.

〔発明の効果〕〔Effect of the invention〕

従って、テーパコーンを揺動可能に支持し、伝動部材に
よって付勢するという改造によって、複数のテーバコー
ン夫々と回転部材とを均等な圧力で接触させる構造が簡
単に、しかも、小型な状態で得られたのである。
Therefore, by modifying the tapered cones to swingably support them and apply force using a transmission member, a structure in which a plurality of tapered cones are brought into contact with a rotating member with equal pressure can be easily obtained in a compact state. It is.

〔実施例〕〔Example〕

以下、本発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below based on the drawings.

第1図、第3図、第4図には無段変速装置の断面を表し
てあり、この装置は入力プーリ(1)を介して動力が伝
えられる伝動軸(2)をケース(3)に貫通状態に支持
してあり、伝動軸(2)には、この伝動軸(2)からの
動力がキー(4)を介して伝えられるスリーブ部材(5
)と、このスリーブ部材(5)からの動力が自動調圧用
機構(A)を介して伝えられる伝動部材(6)とを外嵌
状態で設けてあり、ケース(3)には伝動部材(6)か
らの動力が伝えられる3つのテーパコーン(7)・・を
、ホルダ(8)、及び、揺動支持部(9)を介して設け
てあり、更に、テーパコーン(7)・・のテーパ面(7
a)・・に接するリング状の回転部材(lO)をケース
内に設けである。
Figures 1, 3, and 4 show cross-sections of a continuously variable transmission, in which a transmission shaft (2) to which power is transmitted via an input pulley (1) is connected to a case (3). A sleeve member (5) is supported through the transmission shaft (2) and transmits power from the transmission shaft (2) via the key (4).
) and a transmission member (6) through which the power from the sleeve member (5) is transmitted via the automatic pressure adjustment mechanism (A) are fitted externally, and the transmission member (6) is fitted onto the case (3). ) are provided via the holder (8) and the swinging support part (9), and the tapered surfaces of the taper cones (7) ( 7
a) A ring-shaped rotating member (lO) in contact with... is provided inside the case.

この回転部材(10)はキャリア(11)に設けた複数
のガイド軸(12)・・に対してスライド移動可能に支
持され、又、キャリア(11)は前記スリーブ部材(5
)に遊転支持されている。
The rotating member (10) is supported so as to be slidable relative to a plurality of guide shafts (12) provided on the carrier (11), and the carrier (11) is supported by the sleeve member (5).
) is freely supported.

このキャリア(11)には、複数の第1軸(13)・・
を介して複数の遊星ギヤ(14)・・と、複数の第2軸
(15)・・を介して、夫々遊星ギヤ(14)と咬合す
る複数の中間ギヤ(16)・・とを有し、夫々の遊星ギ
ヤ(14)・・は前記スリーブ部材(5)に形成した太
陽ギヤ部(5g)に咬合し、夫々の中間ギヤ(16)は
筒軸(17)に形成したギヤ部(17g)に咬合し、こ
の筒軸(17)に出力ブー1月18)を設けである。
This carrier (11) has a plurality of first shafts (13)...
It has a plurality of planetary gears (14) through which it is connected, and a plurality of intermediate gears (16) which mesh with the planetary gears (14) through a plurality of second shafts (15), respectively. , each planetary gear (14)... meshes with a sun gear part (5g) formed on the sleeve member (5), and each intermediate gear (16) meshes with a gear part (17g) formed on the cylindrical shaft (17). ), and this cylindrical shaft (17) is provided with an output valve (18).

第2図に示すように前記自動調圧用機構(A)はスリー
ブ部材(5)、伝動部材(6)夫々に形成された複数の
凹状部(5a)・・と、この凹状部(6a)・・夫々に
収められたボール(19)・・とで成り、この自動調圧
用機構(A)は負荷の大きさに対応して、凹状部(5a
)、 (6a)のテーパ面に対してボール(19)の乗
り上は量が変化する結果、伝動部材(6)の押出し力を
変化させるよう構成しである。
As shown in FIG. 2, the automatic pressure regulating mechanism (A) includes a plurality of concave portions (5a) formed in the sleeve member (5) and the transmission member (6), and the concave portions (6a).・Balls (19) housed in each... This automatic pressure regulating mechanism (A) has a concave portion (5a) corresponding to the size of the load.
) and (6a), the amount of riding of the ball (19) on the tapered surface changes, resulting in a change in the pushing force of the transmission member (6).

そして、このように負荷の大きさに対応して伝動部材(
6)の押出し力が調節されること、及び、夫々のテーパ
コーン(7)・・が揺動自在に支持されていることによ
り、夫々のテーパコーン(7)・・は適切、かつ、均等
な圧力で回転部材(10)に接触するようになっている
In this way, the transmission member (
By adjusting the extrusion force of step 6) and by swingingly supporting each taper cone (7), each taper cone (7) can be applied with appropriate and even pressure. It is adapted to come into contact with the rotating member (10).

尚、この装置では自動調圧機構(A)からの圧力に抗し
て、伝動部材(6)をスリーブ部材(5)の側にシフト
操作することで伝動部材(6)とテパコーン(7)との
間の伝動状態を解除する操作ロッド(20)、操作フォ
ーク(21)を有し、この操作系はクラッチ操作具(2
2)と連係している。
In addition, in this device, the transmission member (6) and the taper cone (7) are separated by shifting the transmission member (6) toward the sleeve member (5) against the pressure from the automatic pressure adjustment mechanism (A). This operating system includes an operating rod (20) and an operating fork (21) that release the transmission state between
2) is linked.

第1図に示すように、回転部材(10)の外周には操作
溝(10a)を形成してあり、この操作溝(10a)に
は変速操作具(23)と連係するシフトフォーク(24
)を嵌め込んである。
As shown in FIG. 1, an operating groove (10a) is formed on the outer periphery of the rotating member (10), and this operating groove (10a) has a shift fork (24
) is included.

そして、このフォークシフト(24)の操作によって回
転部材(10)のスライド移動量を調節することにより
、キャリア(11)に取出される回転が無段階に変化し
、この回転と、太陽ギヤ部(5g)の回転との相対速度
の関係から筒袖(17)には正転から回転停止を含めて
逆転までの無段階の変速動力が出力されるように構成さ
れている。
By adjusting the amount of sliding movement of the rotating member (10) by operating the fork shift (24), the rotation taken out to the carrier (11) changes steplessly, and this rotation and the sun gear part ( 5g), the sleeve sleeve (17) is configured to output stepless variable speed power from normal rotation to reverse rotation, including stoppage of rotation.

尚、この装置では自動調圧機構(A)からの圧力が入力
プーリ側の伝動軸(2)を支持する部材(25)に伝え
られるので、この圧力を伝動軸(2)上でクローズさせ
るよう部材(25)と伝動軸(2)との間にはスラス1
〜ベアリング(26)を介装してあり、又、前記キャリ
ア(11)は前述のようにスリーブ部材(5)に支持さ
れると同時に中間ギヤ(16)を介して筒袖(17)に
支持されるので姿勢が安定するようになっている。
In addition, in this device, the pressure from the automatic pressure adjustment mechanism (A) is transmitted to the member (25) that supports the transmission shaft (2) on the input pulley side, so this pressure is closed on the transmission shaft (2). There is a slot 1 between the member (25) and the transmission shaft (2).
- A bearing (26) is interposed, and the carrier (11) is supported by the sleeve member (5) as described above and at the same time supported by the sleeve member (17) via the intermediate gear (16). This helps keep your posture stable.

因みに、伝動軸(2)の出力プーリ側の端部(2d)は
外部動力取出し用の出力軸として用いられることになる
Incidentally, the end (2d) of the transmission shaft (2) on the output pulley side is used as an output shaft for taking out external power.

C別実施例〕 本発明は」二記実施例以外に例えば、第5図に示すよう
に伝動軸(2)に入力プーリ側を支持する部+4’(2
5)に形成した半円形の凹部(25a)と、この四部(
25a)に係入するようホルダ(8)に形成した凸部と
で揺動を行い得るよう支持部(9)を構成して良(、又
、自動調圧機構(八)に代えて圧縮ハネ(28)を用い
て伝動部材(6)に付勢力を作用させるよう構成しても
良い。
Embodiment C] In addition to the embodiments described above, the present invention includes, for example, a part +4' (2) that supports the input pulley side on the transmission shaft (2) as shown in FIG.
The semicircular recess (25a) formed in 5) and the four parts (
The support part (9) may be constructed so as to be able to swing with the convex part formed on the holder (8) so as to engage with the holder (8). (28) may be used to apply a biasing force to the transmission member (6).

又、本発明は回転部材をディスク型に、伝動部材をリン
グ型に夫々形成し、テーパコーンを内方に揺動させるよ
う構成する等、様々に実施可能である。
Further, the present invention can be implemented in various ways, such as by forming the rotating member in a disk shape, the transmission member in a ring shape, and configuring the taper cone to swing inward.

尚、特許請求の範囲の項に図面との対照を便利にする為
に符号を記すが、該記入により本発明は添付図面の構造
に限定されるものではない。
Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

【図面の簡単な説明】[Brief explanation of the drawing]

図面ば本発明に係る無段変速装置の実施例を示し、第1
図は該装置の断面図、第2図は自動調圧機構の一部を表
す断面図、第3図は第1図の■−■線断面図、第4図は
第1図の■−■線断面図であり、第5図は該装置の別実
施例の断面図である。 (6)・・・・・・伝動部材、(7)・・・・・・テー
パコーン、(7a)・・・・・・テーパ面、(9)・・
・・・・支持部材、(10)・・・・・・回転部材
The drawings show an embodiment of the continuously variable transmission according to the present invention, and a first embodiment of the continuously variable transmission device according to the present invention is shown.
The figure is a cross-sectional view of the device, Figure 2 is a cross-sectional view showing a part of the automatic pressure regulating mechanism, Figure 3 is a cross-sectional view taken along the line ■-■ in Figure 1, and Figure 4 is a cross-sectional view taken along the line ■-■ in Figure 1. FIG. 5 is a cross-sectional view of another embodiment of the device. (6)...Transmission member, (7)...Taper cone, (7a)...Tapered surface, (9)...
...Supporting member, (10) ...Rotating member

Claims (1)

【特許請求の範囲】[Claims] 夫々回転動力が伝えられる複数のテーパコーン(7)、
(7)を有し、夫々のテーパコーン(7)、(7)のテ
ーパ面(7a)に対する接触位置の変更によって、変速
動力を取出す回転部材(10)を有して成る無段変速装
置であって、テーパコーン(7)の回転部材(10)の
側への揺動変位を許す支持部(9)を形成すると共に、
テーパコーン(7)との接触によって、テーパコーン(
7)を回転部材(10)の側に圧接させ、かつ、テーパ
コーン(7)に回転動力を伝える伝動部材(6)を設け
て成る無段変速装置。
a plurality of tapered cones (7), each to which rotational power is transmitted;
(7) and a rotating member (10) which extracts shifting power by changing the contact position of each tapered cone (7), (7) with respect to the tapered surface (7a). to form a support portion (9) that allows swinging displacement of the taper cone (7) toward the rotating member (10), and
By contact with the taper cone (7), the taper cone (
7) is brought into pressure contact with a rotating member (10), and a transmission member (6) is provided for transmitting rotational power to a taper cone (7).
JP32814188A 1988-12-26 1988-12-26 Continuously variable transmission Pending JPH02173450A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32814188A JPH02173450A (en) 1988-12-26 1988-12-26 Continuously variable transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32814188A JPH02173450A (en) 1988-12-26 1988-12-26 Continuously variable transmission

Publications (1)

Publication Number Publication Date
JPH02173450A true JPH02173450A (en) 1990-07-04

Family

ID=18206955

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32814188A Pending JPH02173450A (en) 1988-12-26 1988-12-26 Continuously variable transmission

Country Status (1)

Country Link
JP (1) JPH02173450A (en)

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