JPS6012060A

JPS6012060A - Speed reducer fo wheelchair

Info

Publication number: JPS6012060A
Application number: JP58120732A
Authority: JP
Inventors: 明頃末
Original assignee: Individual
Current assignee: Individual
Priority date: 1983-07-02
Filing date: 1983-07-02
Publication date: 1985-01-22

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】本発明は筋力の弱い人を対称としだ車椅子に関するもの
で一般の車椅子の様に一リムに操作リングを直結したの
とは異なり、そのハブに減速機！番設けてより操作力を
軽減できる：？を特徴として；す、機構部品にも規格品
を用いて廉価に製作可能である。[Detailed Description of the Invention] The present invention relates to a wheelchair aimed at people with weak muscles. Unlike general wheelchairs, which have an operating ring directly connected to one rim, the present invention uses a reduction gear at the hub! The operating force can be reduced by setting a number: ? It is characterized by: Mechanical parts can be manufactured at low cost using standard products.

ハブの減速機構は多くの案があるがその一例として遊星
歯車機構があり、この機構は一般的に個々の遊星歯車に
均等に荷重を薔けるための機ＩＩは複雑で高精度の加工
が必要であるので高価となる０本、案の様な、車椅子は
生産量も少なくこの機構の採用はコスト面で不゛利であ
る。There are many plans for hub reduction mechanisms, one example of which is a planetary gear mechanism, and this mechanism is generally complex and requires high-precision machining in order to distribute the load evenly to each planetary gear. Therefore, wheelchairs like the one proposed are expensive, and the production volume of the wheelchairs is small, so adoption of this mechanism is disadvantageous in terms of cost.

本、：発明ｒｉ規格品の高精度部品へるボールベアリン
グ、グを利用し、□その鋼球の公転運動をとり出して減
速する機構でありコスト面で極めて有利となる。一般の
ベアリングを利用した増減速機構も存在するが、これは
主として低トルクであり特に振動、騒音の低減に特徴が
あり本発明の目的とけ異なってする。Book: Invention: This is a mechanism that utilizes high-precision ball bearings made of high-precision parts to extract and decelerate the revolving motion of the steel balls, which is extremely advantageous in terms of cost. There is also an acceleration/deceleration mechanism using general bearings, but this is mainly characterized by low torque and reduction of vibration and noise, which is different from the purpose of the present invention.

略凸のポールベアリングの内レース２とを硬質ゴム等よ
、す′一本ブヴシュ８で固定する。又、外レース４セホ
；ルダー５に固着され、ホルダー５のＶ型口み５ａと、
駆動リンメロのＶ型口み６ａの間に鋼球（π）７を挾ん
□でいる。駆動リング６はスラストベアリング８を介し
て皿はね９で与圧され、外レース４と鋼球（Ｖ）　１０
の間に必要な摩擦力を得ている。第２図で鋼球（１）　
１０　ｄキャリアハブ１１の円筒溝１１ａにｆｉｌす、
その公転運動をキャリアハブ１１に伝えている。The inner race 2 of the substantially convex pole bearing is fixed with hard rubber or the like using a bushing 8. Also, the outer race 4 is fixed to the ruler 5, and the V-shaped opening 5a of the holder 5,
A steel ball (π) 7 is sandwiched between the V-shaped openings 6a of the driving ring melo. The drive ring 6 is pressurized by a disk spring 9 via a thrust bearing 8, and is connected to an outer race 4 and a steel ball (V) 10.
The necessary frictional force is obtained between the two. Steel ball (1) in Figure 2
10dFill into the cylindrical groove 11a of the carrier hub 11,
The orbital motion is transmitted to the carrier hub 11.

車輪の負荷が小さい時は皿ばね９の与圧による摩擦力で
スリップ少なくトルクを伝える事ができるが、負荷が増
大すると与圧だけではスリ、プが多くなる。第３図（４
）は車輪負荷が小さい時の駆動リング６とホルダー５と
の接続状態であるが、車輪負荷が増大、即ち、ホルダー
５の抵抗が大きくなると駆動トルクＴも増大し、鋼球（
ｘ）７がＶ型口み６ａ　、　５ａ　を乗り上げようとし
て軸力Ｐが発生する。この力が皿ばね９の与圧に加算さ
れて摩擦力を増大し、スリ、プを防止している。この機
構は゛　機構効率及び耐久性の向上に極めて有効なもの
である。When the load on the wheel is small, torque can be transmitted with little slip due to the frictional force due to the pressurization of the disc spring 9, but as the load increases, pressurization alone will cause more slips and slips. Figure 3 (4
) is the connection state between the drive ring 6 and the holder 5 when the wheel load is small, but as the wheel load increases, that is, the resistance of the holder 5 increases, the drive torque T also increases, and the steel ball (
x) Axial force P is generated when 7 tries to run over the V-shaped openings 6a and 5a. This force is added to the pressurization of the disc spring 9 to increase the frictional force and prevent slipping and slipping. This mechanism is extremely effective in improving mechanical efficiency and durability.

以上の様に本発明は高精度な規格品を巧妙に利用し、又
、Ｖ型口みと鋼球を組み合わせた加圧機構も併設し、廉
価に所期の目的を達成したものである。As described above, the present invention cleverly utilizes high-precision standardized products and is also equipped with a pressurizing mechanism that combines a V-shaped mouth and a steel ball, thereby achieving the intended purpose at a low cost.

[Brief explanation of the drawing]

第１図は減速機構全体の断面図、第２図は鋼球（ｙ）が
キャリア／・ブの円筒溝にけまりている状態の斜視図、
第８図は鋼球（Ｚ）とＶ型口みによる加圧機構の作動説
明図を示している。１：ハブ軸　２：内レース　８：ブッンユ４：外レース
　５：ホルダー５ａ：ホルダー５のＶ型口み　６：駆動リング６ａ：駆
動リング６のＶ型口み　７：鋼球（、）８ニスラストベ
アリング　９：皿ばね１０：鋼球（ｙ）ｕ：キャリアＩ・プ特許出願人　頃　末　明Figure 1 is a cross-sectional view of the entire speed reduction mechanism, Figure 2 is a perspective view of the steel ball (y) being fitted into the cylindrical groove of the carrier.
FIG. 8 shows an explanatory diagram of the operation of the pressurizing mechanism using the steel ball (Z) and the V-shaped mouth. 1: Hub axle 2: Inner race 8: Button 4: Outer race 5: Holder 5a: V-shaped opening of holder 5 6: Drive ring 6a: V-shaped opening of drive ring 6 7: Steel ball (,) 8 Varnish Last bearing 9: Disc spring 10: Steel ball (y) u: Carrier I.P Patent applicant Akira Koro Sue

Claims

[Claims] □ Uses standard ball bearings to prevent locking. - Fix the base to the hub axle, fix the outer race to the hole #-,
V at the same - position on the end face of the holder and the end face of the drive ring □
Several mold holes are provided, and the drive ring is pressurized by a disc spring via a steel ball (X), and the torque from the drive ring is transmitted to the outer race via a steel ball (X). ) is configured to extract the orbital motion of the wheel to the carrier hub.