EP0233303A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Planetary gear apparatus
Assignee: Sumitomo Heavy Industries Ltd
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Filing: 1986-02-19
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Granted: —
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Expires: 2006-02-19
Abstract
Abstract A planetary gear apparatus has an external gear 24 mounted on an input shaft 21 through an eccentric member 22, and an internal gear 26 which engages with the external gear and is concentric with respect to an output shaft 30. A recess 31 is provided in the output shaft 30, and internal or external splines are provided on either the inner or outer side of the recess so as to be concentric with respect to the output shaft 30. The external gear 24 has either a carrier or an annular groove provided on the side thereof which is closer to the output shaft. The carrier or the annular groove is provided with internal or external splines so as to be concentric with respect to the external gear 24. The internal or external splines on the output shaft and the internal or external splines on the external gear are operatively connected together by a drive having external or internal splines provided at both ends thereof. The drive 35 is constituted by a hollow shaft having a through-hole 36. The input shaft is received through the through-hole in the drive and is rotatably born within the recess of the output shaft.
Inventors
- 👤 Kiyoji Minegishi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 05:36
CPC Classifications
F; F16; F16H; F16H1/00; F16H1/28; F16H1/32; F16H2001/2881; F16H2001/322
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
196 words
In a planetary gear apparatus having: an input shaft; an eccentric member mounted on said input shaft so as to be eccentric with respect to said input shaft; an internal gear concentrically surrounding said input shaft; an external gear carried by said eccentric member and engaging with said internal gear, said external gear rotating around its own axis while revolving around the axis of said input shaft in response to the rotation of said input shaft; an output shaft extending coaxially with respect to said input shaft; and a driving member which connects together said external gear and said output shaft to transmit the rotational motion of said external gear to said output shaft, an improvement comprising: said output shaft being provided at one end thereof with a recess which surrounds the distal end portion of said input shaft; said driving member being constituted by a hollow shaft having a through-hole through which said input shaft extends, said hollow shaft having both end portions thereof operatively connected to said external gear and said output shaft through splines, respectively; and said input shaft having its distal end portion rotatably born within the recess in said output shaft.
Claim 2
Dependent Claim
196 words
In a planetary gear apparatus having: an input shaft; an eccentric member mounted on said input shaft so as to be eccentric with respect to said input shaft; an internal gear concentrically surrounding said input shaft; an external gear carried by said eccentric member and engaging with said internal gear, said external gear rotating around its own axis while revolving around the axis of said input shaft in response to the rotation of said input shaft; an output shaft extending coaxially with respect to said input shaft; and a driving member which connects together said external gear and said output shaft to transmit the rotational motion of said external gear to said output shaft, an improvement comprising: said output shaft being provided at one end thereof with a recess which surrounds the distal end portion of said input shaft; said driving member being constituted by a hollow shaft having a through-hole through which said input shaft extends, said hollow shaft having both end portions thereof operatively connected to said external gear and said output shaft through splines, respectively; and said input shaft having its distal end portion rotatably born within the recess in said output shaft.
Claim 3
Dependent Claim
165 words
In a planetary gear apparatus having an external gear mounted on an input shaft through an eccentric member, and an internal gear which engages with said external gear and is concentric with respect to an output shaft, an improvement comprising: a recess provided in said output shaft; internal or external splines provided on either the internal or external side of said recess so as to be concentric with respect to said output shaft; a carrier provided on said external gear; internal or external splines provided on said carrier so as to be concentric with respect to said external gear; a drive having external or internal splines provided at both ends thereof and operatively connecting together the internal or external splines on said output shaft and the internal or external splines on said carrier, said drive being constituted by a hollow shaft having a through-hole, said input shaft being received through the through-hole of said drive and rotatably born within the recess of said output shaft.
Claim 4
Dependent Claim
165 words
In a planetary gear apparatus having an external gear mounted on an input shaft through an eccentric member, and an internal gear which engages with said external gear and is concentric with respect to an output shaft, an improvement comprising: a recess provided in said output shaft; internal or external splines provided on either the internal or external side of said recess so as to be concentric with respect to said output shaft; a carrier provided on said external gear; internal or external splines provided on said carrier so as to be concentric with respect to said external gear; a drive having external or internal splines provided at both ends thereof and operatively connecting together the internal or external splines on said output shaft and the internal or external splines on said carrier, said drive being constituted by a hollow shaft having a through-hole, said input shaft being received through the through-hole of said drive and rotatably born within the recess of said output shaft.
Claim 5
Dependent Claim
172 words
In a planetary gear apparatus having an external gear mounted on an input shaft through an eccentric member, and an internal gear which engages with said external gear and is concentric with respect to an output shaft, an improvement comprising: a recess provided in said output shaft; internal or external splines provided on either the internal or external side of said recess so as to be concentric with respect to said output shaft; an annular groove provided on the side of said external gear which is closer to said output shaft; internal or external splines provided on either the inner or outer side of said annular groove; a drive having outer or inner splines provided at both ends thereof and operatively connecting together the internal or external splines on said output shaft and the internal or external splines on said annular groove, said drive being constituted by a hollow shaft, said input shaft being received through the hollow portion of said drive and rotatably born within the recess of said output shaft.
Claim 6
Dependent Claim
172 words
In a planetary gear apparatus having an external gear mounted on an input shaft through an eccentric member, and an internal gear which engages with said external gear and is concentric with respect to an output shaft, an improvement comprising: a recess provided in said output shaft; internal or external splines provided on either the internal or external side of said recess so as to be concentric with respect to said output shaft; an annular groove provided on the side of said external gear which is closer to said output shaft; internal or external splines provided on either the inner or outer side of said annular groove; a drive having outer or inner splines provided at both ends thereof and operatively connecting together the internal or external splines on said output shaft and the internal or external splines on said annular groove, said drive being constituted by a hollow shaft, said input shaft being received through the hollow portion of said drive and rotatably born within the recess of said output shaft.
References Cited (Backward Citations)
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