JP3703177B2

JP3703177B2 - Automotive transfer equipment

Info

Publication number: JP3703177B2
Application number: JP21504695A
Authority: JP
Inventors: 利之中尾; 一男吉田; 恵司恒田
Original assignee: Aisin AI Co Ltd; Suzuki Motor Co Ltd
Current assignee: Aisin AI Co Ltd; Suzuki Motor Co Ltd
Priority date: 1995-08-23
Filing date: 1995-08-23
Publication date: 2005-10-05
Anticipated expiration: 2015-08-23
Also published as: JPH0958294A

Description

【０００１】
【発明の属する技術分野】
本発明は、四輪駆動車において前輪と後輪に動力を分配するために用いられる自動車用トランスファ装置、特に高低２段に変速可能な遊星歯車変速機を備えた自動車用トランスファ装置に関する。
【０００２】
【従来の技術】
高低２段に変速可能な遊星歯車変速機を備えた自動車用トランスファ装置は、例えば特開昭６０−２１５４２７号公報に示されている。この公報に示されている自動車用トランスファ装置は、ケーシングの上部に回転自在に組付けられた入力軸と、この入力軸と同軸的に配置されて前記ケーシングの上部に回転自在に組付けられた第１出力軸と、前記入力軸と第１出力軸に同軸的に配置されて前記入力軸の回転を同速または減速して（高速または低速にて）前記第１出力軸に伝達可能な遊星歯車変速機と、前記ケーシングの下部に回転自在に組付けられた第２出力軸と、この第２出力軸と前記第１出力軸を断続可能な断続装置（２輪−４輪切換装置）とを備えている。
【０００３】
【発明が解決しようとする課題】
ところで、上記した公報の自動車用トランスファ装置においては、前記遊星歯車変速機がケーシングの上部に組付けられている入力軸と第１出力軸に対して同軸的に配置されていて、はねかけ式の潤滑では前記遊星歯車変速機の潤滑必要部に潤滑油が十分に供給されないため、潤滑必要部に潤滑油を供給するためのオイルポンプが第１出力軸上に組付けられていて、このオイルポンプのために当該装置の軸長増加とコストアップは避けられない。
【０００４】
【課題を解決するための手段】
本発明は、上記した問題に対処すべくなされたものであり、潤滑性能を損なわずに当該装置の軸長短縮とコスト低減を図ることを目的として、当該自動車用トランスファ装置を、ケーシングの上部に回転自在に組付けられた入力軸と、前記ケーシングの下部に回転自在に組付けられた第１出力軸と、この第１出力軸上に回転自在に設けられて前記入力軸に取り付けられたスプロケット部によりチェーンを介して回転されるスプロケットの回転を同速または減速して前記第１出力軸に伝達可能な遊星歯車変速機と、前記第１出力軸に同軸的に配置されて前記ケーシングの下部に回転自在に組付けられた第２出力軸と、この第２出力軸と前記第１出力軸間に配置されて前記第１出力軸と前記第２出力軸を断続可能な断続装置とを備えた自動車用トランスファ装置において、前記遊星歯車変速機は前記スプロケットとともに回転されるリングギヤと、前記第１出力軸上に一体回転可能かつ軸方向へ移動可能に組付けられたキヤリヤと、このキヤリヤの中心部外周に回転自在かつ軸方向への移動不能に組付けられたサンギヤと、前記キヤリヤに回転自在かつ軸方向移動不能に組付けられるとともに前記サンギヤとリングギヤに噛合うプラネタリギヤからなり、さらに前記サンギヤに係合されて前記キヤリヤ，サンギヤ及びプラネタリギヤを一体的に軸方向に移動させるシフトフォークと、前記サンギヤに設けられて前記シフトフォークを前記スプロケットに接近する向きに移動した際にこのスプロケットと前記第１出力軸の間をトルク伝達可能に連結する内周スプラインと、前記ケーシングに取り付けられて前記シフトフォークを前記スプロケットから離れる向きに移動した際に前記サンギヤとスプライン嵌合されるクラッチギヤを備える構成とした。
前項に記載の自動車用トランスファ装置の前記遊星歯車変速機は、前記キヤリヤの軸方向端部外周に嵌合して一体回転可能に取付けた環状のカバーと、前記プラネタリギヤを前記キヤリヤに軸支する軸支ピンに設けられて前記カバー内の潤滑油を前記プラネタリギヤのベアリング部に導く軸方向及び径方向の油路とを備えたものとすることが好ましい。
【０００５】
【発明の作用・効果】
本発明による自動車用トランスファ装置においては、ケーシングの下部に回転自在に組付けられた第１出力軸上に遊星歯車変速機が組付けられていて、はねかけ式の潤滑によっても遊星歯車変速機の潤滑必要部に潤滑油を十分に供給することが可能であるため、潤滑必要部に潤滑油を供給するためのオイルポンプが不要であり、当該装置の軸長短縮とコスト低減を図ることができる。
またキヤリヤの軸方向端部外周に嵌合して一体回転可能に取付けた環状のカバーと、プラネタリギヤをキヤリヤに軸支する軸支ピンに設けられてカバー内の潤滑油をプラネタリギヤのベアリング部に導く軸方向及び径方向の油路とを備えたものとした請求項２に記載の自動車用トランスファ装置によれば、カバー内に入った潤滑油は、カバー２７の回転に伴って遠心力及び回転力により軸支ピン２４に設けた油路２４ａを通してプラネタリギヤ２５のベアリング部に導かれて的確な潤滑がなされる。従って、遊星歯車変速機の潤滑性能が向上する。
【０００６】
【発明の実施の形態】
以下に、本発明の一実施形態を図面に基づいて説明する。図１は本発明による自動車用トランスファ装置（動力分配装置）を示していて、この自動車用トランスファ装置は、ケーシング４０の上部に回転自在に組付けられた入力軸１１と、ケーシング４０の下部に回転自在に組付けられた第１出力軸１４と、この第１出力軸１４上に組付けられて入力軸１１の回転を同速または減速して第１出力軸１４に伝達可能な遊星歯車変速機２０と、第１出力軸１４に同軸的に配置されてケーシング４０の下部に回転自在に組付けられた第２出力軸１５と、両出力軸１４，１５間に配置されて第１出力軸１４と第２出力軸１５を断続可能な断続装置３０とを備えており、入力軸１１と両出力軸１４，１５を回転自在に支持するケーシング４０内には所定量の潤滑油が封入されている。なお、この自動車用トランスファ装置が車両に装備された状態では、入力軸１１に対して両出力軸１４，１５が側方下部に配置されるようになっている。
【０００７】
遊星歯車式変速機２０は、入力軸１１のスプロケット部１１ａによってチェーン１２を介して回転されるスプロケット１３とともに第１出力軸１４上に回転自在に組付けられたリングギヤ２１と、第１出力軸１４上に一体回転可能かつ軸方向へ移動可能に組付けたキャリヤ２２と、このキャリヤ２２の中心筒部外周に回転自在かつ軸方向移動不能に組付けたサンギヤ２３と、このサンギヤ２３と上記リングギヤ２１間にてキャリヤ２２の各軸支ピン２４（周方向にて略等間隔に３個設けられている）に回転自在かつ軸方向移動不能に組付けたプラネタリギヤ２５（リングギヤ２１とサンギヤ２３に噛合している）等によって構成されていて、サンギヤ２３に係合させたシフトフォーク２６によってキャリヤ２２，サンギヤ２３及びプラネタリギヤ２５等を一体的に図示右方へ移動させてキャリヤ２２の内周スプラインにてスプロケット１３と第１出力軸１４をトルク伝達可能に連結することにより第１出力軸１４をスプロケット１３と同速（高速）で回転させることが可能であり、またシフトフォーク２６によってキャリヤ２２，サンギヤ２３及びプラネタリギヤ２５等を一体的に図示左方へ移動させてサンギヤ２３の外スプラインをクラッチギヤ２９の内スプラインに嵌合させることにより第１出力軸１４を低速で回転させることが可能である。
【０００８】
また、この遊星歯車式変速機２０には、図１〜図３に示したように、キャリヤ２２の軸方向端部外周に嵌合して一体回転可能に取付けた環状のカバー２７と、キャリヤ２２の各軸支ピン２４に設けられてカバー２７からプラネタリギヤ２５の潤滑必要部（ベアリング部）に潤滑油を導く軸方向及び径方向の油路２４ａによって構成したプラネタリギヤの潤滑機構が設けられている。
【０００９】
カバー２７は、図２〜図６に詳細に示したように、キャリヤ２２に取付けるための断面Ｌ形で環状の取付部２７ａと、各軸支ピン２４を油路２４ａの開口した側方から覆う被覆部２７ｂと、内周に向けて開口し各被覆部２７ｂを基端としてキャリヤ２２の回転方向（図２の時計方向）に延びる円弧状のオイル溜部２７ｃと、同カバーの回転によって同カバー周辺の潤滑油をかき集めて各オイル溜部２７ｃに導くオイル受部２７ｄ，２７ｅと、各オイル溜部２７ｃを接続して余剰の潤滑油を周方向に移動させる環状の接続部２７ｆと、同カバーにキャリヤ２２の回転を確実に伝達するための突起２７ｇと、キャリヤ２２との係合を強めるための一対の係止爪２７ｈ等を有している。各オイル受部２７ｄ，２７ｅは、各オイル溜部２７ｃの一部を軸方向に切り起こして形成したものであり、カバー２７の回転方向に向けて開口しており、各オイル受部２７ｄの開口面積（図６参照）は各オイル受部２７ｅの開口面積（図５参照）より大きい。なお、取付部２７ａは各軸支ピン２４の抜け止め用ピン２８の径外方への移動を規制するストッパとしても機能するようになっている。
【００１０】
断続装置３０は、図１に示したように、第２出力軸１５に一体的に形成したシンクロハブ３１と、このシンクロハブ３１の外周に軸方向へ移動可能に組付けた切換スリーブ３２と、第１出力軸１４に一体的に形成したクラッチギヤ３３と、このクラッチギヤ３３に組付けられて切換スリーブ３２が図１の右方へ軸方向移動されるときにキー３５によって押動されるシンクロリング３４等によって構成されていて、切換スリーブ３２に係合させたシフトフォーク３６によって切換スリーブ３２を図示右方へ移動させることによって第１出力軸１４と第２出力軸１５をトルク伝達可能に連結することが可能であり、またシフトフォーク３６によって切換スリーブ３２を図示位置に戻すことによって第１出力軸１４と第２出力軸１５をトルク伝達不能に分断することが可能である。
【００１１】
上記のように構成した本実施形態においては、キャリヤ２２の回転に伴ってカバー２７がキャリヤ２２と一体的に回転すると、同カバー２７の回転によりカバー２７の各オイル受部２７ｄ，２７ｅにてカバー周囲の潤滑油がかき集められてカバー２７の各円弧状オイル溜部２７ｃに導かれる。また、キャリヤ２２の回転中心側から遠心力やはねかけによって飛散する潤滑油がカバー２２の各円弧状オイル溜部２７ｃに内周開口から飛び込んで収容される。しかして、カバー２７における各円弧状オイル溜部２７ｃ内の潤滑油は、カバー２７の回転に伴って遠心力及び回転力により各円弧状オイル溜部２７ｃの基部（被覆部２７ｂ）に向けて押し動かされて、同基部から各軸支ピン２４に設けた油路２４ａを通してプラネタリギヤ２５の潤滑必要部に導かれ、プラネタリギヤ２５の潤滑必要部が的確に潤滑される。したがって、潤滑性能の信頼性が向上する。
【００１２】
ところで、本実施形態の自動車用トランスファ装置においては、ケーシング４０の下部に回転自在に組付けられた第１出力軸１４上に遊星歯車変速機２０が組付けられていて、はねかけ式の潤滑によっても遊星歯車変速機２０の潤滑必要部に潤滑油を十分に供給することが可能であるため、潤滑必要部に潤滑油を供給するためのオイルポンプが不要であり、当該装置の軸長短縮とコスト低減を図ることができる。
【００１３】
上記実施形態においては、遊星歯車変速機２０のキャリヤ２２に潤滑油を効率よく油路２４ａに導くカバー２７を設けて実施したが、このカバー２７に代えて適宜形状のオイルキャッチャ（第１出力軸１４の回転によってはねかけられる潤滑油を受け止めて油路２４ａに導くもの）を設けて実施すること、或いはこれらを用いないで実施することも可能である。
【図面の簡単な説明】
【図１】本発明による自動車用トランスファ装置の断面図である。
【図２】図１に示したキャリヤ，軸支ピン，プラネタリギヤ及びカバー等の関係を示す正面図である。
【図３】図２の３−３線に沿った断面図である。
【図４】図１〜図３に示したカバー単体の背面図である。
【図５】図４の５−５線に沿った断面図である。
【図６】図４の６−６線に沿った断面図である。
【符号の説明】
１１…入力軸、１１ａ…スプロケット部、１２…チェーン、１３…スプロケット、１４…第１出力軸、１５…第２出力軸、２０…遊星歯車変速機、２１…リングギヤ、２２…キャリヤ、２３…サンギヤ、２４…軸支ピン、２４ａ…油路、２５…プラネタリギヤ、２６…シフトフォーク、２７…カバー、２９…クラッチギヤ、３０…断続装置、４０…ケーシング。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automobile transfer device used for distributing power to a front wheel and a rear wheel in a four-wheel drive vehicle, and more particularly, to an automobile transfer device provided with a planetary gear transmission capable of shifting in two steps of high and low.
[0002]
[Prior art]
An automobile transfer device provided with a planetary gear transmission capable of shifting in two steps of high and low is disclosed, for example, in Japanese Patent Laid-Open No. 60-215427. The transfer device for an automobile shown in this publication has an input shaft that is rotatably mounted on the upper portion of the casing, and is coaxially disposed with the input shaft and is rotatably mounted on the upper portion of the casing. A planet that is coaxially disposed on the first output shaft and the input shaft and the first output shaft and can transmit the rotation of the input shaft to the first output shaft at the same speed or at a reduced speed (at high speed or low speed) A gear transmission, a second output shaft rotatably assembled to the lower portion of the casing, and an interrupting device (two-wheel / four-wheel switching device) capable of intermittently connecting the second output shaft and the first output shaft; It has.
[0003]
[Problems to be solved by the invention]
By the way, in the above-mentioned automobile transfer device of the publication, the planetary gear transmission is arranged coaxially with respect to the input shaft and the first output shaft assembled to the upper part of the casing, and is a splash type. In this lubrication, the lubricating oil is not sufficiently supplied to the lubrication required portion of the planetary gear transmission. Therefore, an oil pump for supplying the lubrication oil to the lubrication required portion is assembled on the first output shaft. Due to the pump, an increase in the axial length and cost of the device is inevitable.
[0004]
[Means for Solving the Problems]
The present invention has been made to cope with the above-described problems. For the purpose of shortening the axial length of the device and reducing the cost without impairing the lubrication performance, the transfer device for an automobile is disposed on the upper portion of the casing. An input shaft that is rotatably assembled, a first output shaft that is rotatably assembled to the lower portion of the casing, and a sprocket that is rotatably provided on the first output shaft and attached to the input shaft A planetary gear transmission that can transmit the rotation of the sprocket rotated through the chain by the same speed to the first output shaft at the same speed or reduced speed, and a lower part of the casing that is coaxially disposed on the first output shaft A second output shaft rotatably assembled to the second output shaft, and an interrupting device disposed between the second output shaft and the first output shaft and capable of interrupting the first output shaft and the second output shaft. Car In Nsufa device, the ring gear planetary gear transmission is to be rotated together with the sprocket, and Kiyariya assembled movable integrally to rotatably and axially to the first output shaft on the center portion outer periphery of the Kiyariya A sun gear assembled to be rotatable and immovable in the axial direction, and a planetary gear assembled to the carrier to be rotatable and immovable in the axial direction, and meshed with the sun gear and the ring gear, and further engaged with the sun gear. A shift fork that integrally moves the carrier, sun gear, and planetary gear in the axial direction, and when the shift fork is moved toward the sprocket to move toward the sprocket, the sprocket and the first output shaft An inner peripheral spline that connects between them so as to transmit torque, and the casing Mounted in the a configuration in which Ru with the sun gear and spline clutch gear is engaged when moved in a direction away said shift fork from the sprocket.
The planetary gear transmission of the automobile transfer device according to the preceding item includes an annular cover that is fitted to an outer periphery of an axial end portion of the carrier and attached so as to be integrally rotatable, and a shaft that pivotally supports the planetary gear on the carrier. It is preferable to include axial and radial oil passages provided on the support pins that guide the lubricating oil in the cover to the bearing portion of the planetary gear.
[0005]
[Operation and effect of the invention]
In the transfer device for an automobile according to the present invention, the planetary gear transmission is assembled on the first output shaft rotatably assembled to the lower part of the casing, and the planetary gear transmission is also applied by splash-type lubrication. Therefore, it is possible to sufficiently supply the lubricating oil to the necessary lubrication part, so that an oil pump for supplying the lubricating oil to the necessary lubrication part is unnecessary, and the shaft length and cost of the apparatus can be shortened. it can.
In addition, an annular cover fitted to the outer periphery of the carrier in the axial direction and attached so as to be integrally rotatable, and a shaft support pin that pivotally supports the planetary gear on the carrier, guides the lubricating oil in the cover to the bearing portion of the planetary gear. According to the automobile transfer device according to claim 2, wherein the lubricating oil contained in the cover is subjected to centrifugal force and rotational force with the rotation of the cover 27. As a result, the oil is guided to the bearing portion of the planetary gear 25 through the oil passage 24a provided in the shaft support pin 24, and accurate lubrication is performed. Therefore, the lubrication performance of the planetary gear transmission is improved.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows an automobile transfer device (power distribution device) according to the present invention. This automobile transfer device rotates at an input shaft 11 rotatably mounted on an upper portion of a casing 40 and on a lower portion of the casing 40. A first output shaft 14 that is freely assembled, and a planetary gear transmission that is assembled on the first output shaft 14 and can transmit the rotation of the input shaft 11 to the first output shaft 14 at the same speed or reduced speed. 20, a second output shaft 15 that is coaxially disposed on the first output shaft 14 and is rotatably assembled to the lower portion of the casing 40, and a first output shaft 14 that is disposed between the output shafts 14 and 15. And an intermittent device 30 that can intermittently connect the second output shaft 15, and a predetermined amount of lubricating oil is enclosed in a casing 40 that rotatably supports the input shaft 11 and both the output shafts 14, 15. . When the vehicle transfer device is mounted on the vehicle, the output shafts 14 and 15 are arranged at the lower side with respect to the input shaft 11.
[0007]
The planetary gear type transmission 20 includes a ring gear 21 that is rotatably mounted on a first output shaft 14 together with a sprocket 13 that is rotated via a chain 12 by a sprocket portion 11 a of the input shaft 11, and a first output shaft 14. A carrier 22 assembled so as to be integrally rotatable and movable in the axial direction, a sun gear 23 assembled to the outer periphery of the central cylindrical portion of the carrier 22 so as to be rotatable and immovable in the axial direction, and the sun gear 23 and the ring gear 21. In the meantime, planetary gears 25 (ring gear 21 and sun gear 23 mesh with each other) that are rotatably and axially immovable mounted on the respective shaft support pins 24 (three are provided at substantially equal intervals in the circumferential direction). And the like, and the carrier 22, the sun gear 23 and the planetary are moved by the shift fork 26 engaged with the sun gear 23. The first output shaft 14 is moved at the same speed as the sprocket 13 by connecting the sprocket 13 and the first output shaft 14 so that torque can be transmitted by the inner peripheral spline of the carrier 22. The carrier 22, the sun gear 23, the planetary gear 25, and the like are integrally moved to the left in the figure by the shift fork 26, and the outer spline of the sun gear 23 becomes the inner spline of the clutch gear 29. By fitting, the first output shaft 14 can be rotated at a low speed.
[0008]
In addition, as shown in FIGS. 1 to 3, the planetary gear type transmission 20 includes an annular cover 27 that is fitted to the outer periphery of the end portion in the axial direction of the carrier 22 so as to be integrally rotatable, and the carrier 22. There is provided a planetary gear lubrication mechanism which is constituted by axial and radial oil passages 24a which are provided on the shaft support pins 24 and lead the lubricant from the cover 27 to the lubrication required portion (bearing portion) of the planetary gear 25.
[0009]
As shown in detail in FIGS. 2 to 6, the cover 27 covers the mounting portion 27 a having an L-shaped cross section for mounting on the carrier 22 and each pivot pin 24 from the side where the oil passage 24 a is opened. The cover portion 27b, an arc-shaped oil reservoir portion 27c that opens toward the inner periphery and extends in the rotation direction of the carrier 22 (clockwise in FIG. 2) with each cover portion 27b as a base end, and the cover by rotation of the cover The oil receiving portions 27d and 27e that collect the peripheral lubricating oil and guide it to the respective oil reservoirs 27c, the annular connecting portions 27f that connect the respective oil reservoirs 27c and move the excess lubricating oil in the circumferential direction, and the same cover A protrusion 27g for reliably transmitting the rotation of the carrier 22 and a pair of locking claws 27h for strengthening the engagement with the carrier 22 are provided. Each oil receiving portion 27d, 27e is formed by cutting and raising a part of each oil reservoir portion 27c in the axial direction, and is open toward the rotation direction of the cover 27. The opening of each oil receiving portion 27d The area (see FIG. 6) is larger than the opening area (see FIG. 5) of each oil receiving portion 27e. The attaching portion 27a also functions as a stopper for restricting the outward movement of the pin 28 for retaining the pivot pin 24 radially outward.
[0010]
As shown in FIG. 1, the interrupting device 30 includes a synchro hub 31 formed integrally with the second output shaft 15, a switching sleeve 32 assembled to the outer periphery of the synchro hub 31 so as to be movable in the axial direction, A clutch gear 33 formed integrally with the first output shaft 14 and a synchronization gear assembled to the clutch gear 33 and pushed by the key 35 when the switching sleeve 32 is axially moved to the right in FIG. The first output shaft 14 and the second output shaft 15 are connected so that torque can be transmitted by moving the switching sleeve 32 to the right in the figure by a shift fork 36 engaged with the switching sleeve 32. In addition, by returning the switching sleeve 32 to the illustrated position by the shift fork 36, the first output shaft 14 and the second output shaft 15 are prevented from transmitting torque. It is possible to cut into.
[0011]
In the present embodiment configured as described above, when the cover 27 rotates integrally with the carrier 22 as the carrier 22 rotates, the cover 27 rotates to cover the oil receiving portions 27d and 27e of the cover 27. The surrounding lubricating oil is collected and guided to each arc-shaped oil reservoir 27 c of the cover 27. Further, the lubricating oil scattered from the rotation center side of the carrier 22 by centrifugal force or splashing is stored in each arcuate oil reservoir 27c of the cover 22 by jumping from the inner peripheral opening. Thus, the lubricating oil in each arc-shaped oil reservoir 27c in the cover 27 is pushed toward the base (covering portion 27b) of each arc-shaped oil reservoir 27c by centrifugal force and rotational force as the cover 27 rotates. It is moved and guided from the base portion to the lubrication required portion of the planetary gear 25 through the oil passage 24a provided in each pivot pin 24, and the lubrication required portion of the planetary gear 25 is accurately lubricated. Therefore, the reliability of the lubricating performance is improved.
[0012]
By the way, in the automobile transfer device of the present embodiment, the planetary gear transmission 20 is assembled on the first output shaft 14 that is rotatably assembled to the lower portion of the casing 40, and the splash-type lubrication is performed. Therefore, it is possible to sufficiently supply the lubricating oil to the lubrication required portion of the planetary gear transmission 20, so that an oil pump for supplying the lubricating oil to the lubrication necessary portion is unnecessary, and the axial length of the device is shortened. And cost reduction.
[0013]
In the above embodiment, the cover 22 for efficiently introducing the lubricating oil to the oil passage 24a is provided on the carrier 22 of the planetary gear transmission 20. However, instead of the cover 27, an oil catcher (first output shaft) having an appropriate shape is provided. It is also possible to implement by providing a lubricating oil splashed by the rotation of 14 and guiding it to the oil passage 24a, or without using them.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an automotive transfer device according to the present invention.
FIG. 2 is a front view showing a relationship among the carrier, the shaft support pin, the planetary gear, the cover, and the like shown in FIG.
3 is a cross-sectional view taken along line 3-3 in FIG.
4 is a rear view of a single cover shown in FIGS. 1 to 3. FIG.
FIG. 5 is a cross-sectional view taken along line 5-5 of FIG.
6 is a cross-sectional view taken along line 6-6 of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 ... Input shaft, 11a ... Sprocket part, 12 ... Chain, 13 ... Sprocket, 14 ... 1st output shaft, 15 ... 2nd output shaft, 20 ... Planetary gear transmission, 21 ... Ring gear, 22 ... Carrier, 23 ... Sun gear 24 ... Shaft support pins, 24a ... Oil passage, 25 ... Planetary gear, 26 ... Shift fork, 27 ... Cover, 29 ... Clutch gear, 30 ... Intermittent device, 40 ... Casing.

Claims

An input shaft rotatably mounted on the upper portion of the casing, a first output shaft rotatably mounted on the lower portion of the casing, and a rotary output provided on the first output shaft. A planetary gear transmission capable of transmitting the sprocket rotated through the chain by the attached sprocket portion at the same speed or decelerating to the first output shaft; and coaxially disposed on the first output shaft. A second output shaft rotatably assembled to the lower part of the casing, and an intermittent connection between the second output shaft and the first output shaft so that the first output shaft and the second output shaft can be intermittently connected. in automotive transfer device that includes a device, the planetary gear transmission and the ring gear is rotated together with the sprocket, assembled movable integrally to rotatably and axially to the first output shaft on the wire carrier And a sun gear assembled to the outer periphery of the center of the carrier so as to be rotatable and immovable in the axial direction, and a planetary gear which is assembled to the carrier so as to be rotatable and immovable in the axial direction and meshes with the sun gear and the ring gear. And a shift fork that is engaged with the sun gear to move the carrier, sun gear, and planetary gear integrally in the axial direction, and is provided on the sun gear when the shift fork is moved in a direction approaching the sprocket. An inner peripheral spline that connects the sprocket and the first output shaft so that torque can be transmitted, and when the shift fork is moved away from the sprocket, the sun gear is spline-fitted. Automotive clutch characterized by having a clutch gear Nsufa apparatus.

The planetary gear transmission is provided with an annular cover that is fitted to the outer periphery of the axial end of the carrier so as to be integrally rotatable, and a pivot pin that pivotally supports the planetary gear on the carrier. 2. The automobile transfer device according to claim 1, further comprising: an axial direction and a radial direction oil passage that guides the lubricating oil therein to a bearing portion of the planetary gear.