JPS5874954A - Oil feeder for shift fork - Google Patents
Oil feeder for shift forkInfo
- Publication number
- JPS5874954A JPS5874954A JP17319481A JP17319481A JPS5874954A JP S5874954 A JPS5874954 A JP S5874954A JP 17319481 A JP17319481 A JP 17319481A JP 17319481 A JP17319481 A JP 17319481A JP S5874954 A JPS5874954 A JP S5874954A
- Authority
- JP
- Japan
- Prior art keywords
- shift
- fork
- oil supply
- shift fork
- oil
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/32—Gear shift yokes, e.g. shift forks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/08—Multiple final output mechanisms being moved by a single common final actuating mechanism
- F16H63/16—Multiple final output mechanisms being moved by a single common final actuating mechanism the final output mechanisms being successively actuated by progressive movement of the final actuating mechanism
- F16H63/18—Multiple final output mechanisms being moved by a single common final actuating mechanism the final output mechanisms being successively actuated by progressive movement of the final actuating mechanism the final actuating mechanism comprising cams
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
- General Details Of Gearings (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は車両用エンジンのトランスミッション等におい
て、シフトギヤのシフトフォークの給油装置に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a refueling device for a shift fork of a shift gear in a vehicle engine transmission or the like.
前記シフトフォークは、そのフォーク状爪部な変速歯車
機構のシフトギヤの周溝に係合させた状態でシフトギヤ
が回転され、またシフト制御されるので、前記フォーク
状爪部とシフトギヤの周溝間には十分の潤滑油を供給し
て前記シフトギヤの円滑な回転とシフト制御が行われる
ことが望ましい。−
そこで本発明はシフトフォーク自体に給油路を形成する
とともにそのフォーク状爪部にはその給油路に連通し、
かつそのフォーク状爪部の端面および両側面に開口する
切欠凹溝を形成し、潤滑油が給油路を通って切欠凹溝よ
りフォーク状爪部とシフトギヤの周溝との摺動面間の全
域に亘って万遍なく供給されるようにして前記目的を満
足させるようにした、構造簡単なシフトフォークの給油
装置を得ることを主な目的とするもので、ある。Since the shift gear is rotated and the shift is controlled while the fork-like pawl of the shift fork is engaged with the circumferential groove of the shift gear of the transmission gear mechanism, there is a gap between the fork-like pawl and the circumferential groove of the shift gear. It is desirable that sufficient lubricating oil be supplied to ensure smooth rotation and shift control of the shift gear. - Therefore, the present invention forms an oil supply passage in the shift fork itself, and communicates with the oil supply passage in the fork-shaped pawl,
A notched groove is formed on the end face and both sides of the fork-shaped pawl, and lubricating oil passes through the oil supply path from the notched groove to the entire area between the sliding surface of the fork-shaped pawl and the circumferential groove of the shift gear. The main object of this invention is to obtain a shift fork oil supply device with a simple structure, which satisfies the above object by uniformly supplying oil throughout the entire range.
以下、図面により本発明の１実施例について説明する。Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
エンジンのミッションケースＭには、ドラム変速機のシ
フトドラム１が回転自在に軸架されるとともにこれに隣
接してシフトフォーク軸２が支持され、このシフトフォ
ーク軸２はミッションケースＭの軸受孔段部９に衝合す
るまで一定範囲で軸方向に移動可能である。A shift drum 1 of a drum transmission is rotatably mounted on a mission case M of the engine, and a shift fork shaft 2 is supported adjacent to this. It is movable in the axial direction within a certain range until it abuts against the portion 9.
前記シフトドラム１の外周にはその長手方向に間隔を存
して複数条の第１−〜３リード溝３１ 。A plurality of first to third lead grooves 31 are provided on the outer periphery of the shift drum 1 at intervals in the longitudinal direction.
３２．３．が形成され、一方前記シフトフォーク軸２に
は、前記第１〜３リード溝３ｔ”＝ ３ｔ’−３ａに対
応する第１〜３シフトフオーク４ｔｓ４ｔｔ４、が嵌合
され、そのうち第１，３シフトフォークＣ−４ｍはシフ
トフォーク軸２上を軸方向に摺動自在であり、また第２
シフトフオーク４２はシフトフォーク軸２に固着され、
該軸２と一体に軸方向に移動し得る。第１〜３シフトフ
ォーク４１４ｔ、４．の基端にはそれぞれガイドピン５
１ 。32.3. On the other hand, first to third shift forks 4ts4tt4 corresponding to the first to third lead grooves 3t"=3t'-3a are fitted to the shift fork shaft 2, and among them, the first and third shift forks C-4m is slidable in the axial direction on the shift fork shaft 2, and the second
The shift fork 42 is fixed to the shift fork shaft 2,
It can move in the axial direction together with the shaft 2. 1st to 3rd shift fork 414t, 4. There is a guide pin 5 at the base end of each
1.
５＊−５ｓが一体に突設され、これらのピン５ｍ 。5*-5s are integrally protruded, and these pins are 5m long.
５ｔ 、５ｍは前記第１〜３リード溝３’ｌ ＃
ａ２’ｓ３３に係合される。第１〜３シフトフォーク４
．。5t, 5m are the first to third lead grooves 3'l #
It is engaged with a2's33. 1st to 3rd shift fork 4
．． .
４ｔ−４ｓのフォーク状爪部６ｔ −６ｔ −６ｇ
は、ミッションケースＭ内に設けられる変速歯車機構中
のシフトギヤ７ｓ 、、７ｔ 、７ｓの周溝８．−
８２−８ａＫ係合されており、シフトドラム１が通常の
ように所定の変速角度ずつ間歇的に回転されると、シフ
トドラム１の第１〜３リード溝Ｌｓ３ｔｓ３３によって
第１．３シフトフォーク４．．４゜はシフトフォーク軸
２上を摺動制御され、また第２シフトフォーク４．のみ
はシフトフォーク軸２とともに左右に移動制御され、変
速歯車機構を複数段に切換変速操作することができる。4t-4s fork-shaped claw part 6t -6t -6g
are the circumferential grooves 8. of the shift gears 7s, 7t, 7s in the transmission gear mechanism provided in the transmission case M. −
82-8aK is engaged, and when the shift drum 1 is rotated intermittently by a predetermined shift angle as usual, the first to third lead grooves Ls3ts33 of the shift drum 1 cause the first to third shift forks 4. ．． 4° is slidably controlled on the shift fork shaft 2, and the second shift fork 4. The chisel is controlled to move left and right together with the shift fork shaft 2, and the speed change gear mechanism can be switched to multiple stages for speed change operation.
前記シフトフォーク軸２ には、主給油路１１が穿設さ
れ、この主給油路１１の一方の開口端（第１図右端）は
盲部材１２により閉じられ、またその他方の開口端（第
１図左端）はミッションケースＭに形成した油通路１３
を介してオイルポンプＰＫ連通される。A main oil supply passage 11 is bored in the shift fork shaft 2, and one open end (the right end in FIG. 1) of this main oil supply passage 11 is closed by a blind member 12, and the other open end (the first The left end of the figure) shows the oil passage 13 formed in the mission case M.
It is connected to the oil pump PK via.
前記主給油路１１は、シフトフォーク軸２に穿設した通
油口１４１ −１４ｔ −１４ｍを介して該軸２の外
周面に開口している。一方前記第１〜３シフトフォーク
４ｔ 、４ｔ −４ｓ内には、その長手方向に給油
路Ｉ Ｌ −１５ｔ −１５ｍがそれぞれ穿設され
、これら給油路１５１ 、ｌ’５ｔ −１５ｓの一
端は第１〜３シフトフオーク４ｓ ＝ ４ｓ −４ｓ
の軸受部内周面に、またそれらの他端は第１〜３シフト
フオーク４ｓ −４ｔ −４ｓのフォーク状爪部６
＋ −６２−６３の円弧状端面に開口される。The main oil supply path 11 opens to the outer circumferential surface of the shift fork shaft 2 through oil ports 141 - 14t - 14m bored in the shift fork shaft 2. On the other hand, in the first to third shift forks 4t, 4t-4s, oil supply passages I L-15t-15m are respectively bored in the longitudinal direction, and one ends of these oil supply passages 151, l'5t-15s are connected to the first oil supply passages 151, 1'5t-15s. ~3 shift fork 4s = 4s -4s
on the inner circumferential surface of the bearing part, and the other end thereof is the fork-shaped pawl part 6 of the first to third shift forks 4s-4t-4s.
+ It is opened at the arcuate end face of -62-63.
第１，３シフトフォーク４＋−４ｓの給油路１５１１５
、は、それらの軸受部内周面に形成した軸方向に幅広の
環状油溝１６１．１６．および前記通油口１４＋−１４
ｇを介して主給油路１１に連通され、その連通状態は、
変速操作のため第１．３シフトフォーク４＋−４ｓをシ
フトフォーク軸２上で左右に摺動させても断たれること
がないようになっている。Oil supply path 15115 for 1st and 3rd shift fork 4+-4s
, are annular oil grooves 161, 16, which are wide in the axial direction and are formed on the inner peripheral surface of the bearing portion. and the oil port 14+-14
It communicates with the main oil supply path 11 via g, and the communication state is as follows.
Even if the 1.3rd shift fork 4+-4s is slid left and right on the shift fork shaft 2 for speed change operation, it will not be cut off.
またシフトフォーク軸２に固着の第２シフトフォーク４
．の給油路１５．は、前記通油口１４２のみを介して主
給油路１１に連通される。Also, a second shift fork 4 fixed to the shift fork shaft 2
．． Oil supply path 15. is communicated with the main oil supply passage 11 only through the oil passage 142.
第２図に示すように第１〜３シフトフオーク４１゜４２
．４３のフォーク状爪部６１．６□ 、６．にはその円
弧状端面および両側面に亘って開放される円弧状の切欠
凹溝１７＋ ’−’１７４ ｔ、 １７’ｓが形成さ
れ、これらの切欠凹溝１１１−１７２ −１７ｓは前記
給油路１５ｓ ＝ Ｉ Ｓｔ 、１５ｓに連通され
る。As shown in Figure 2, 1st to 3rd shift forks 41°42
．． 43 fork-shaped claw portion 61.6□, 6. are formed with arc-shaped notched grooves 17+'-'174t, 17's that are open across the arc-shaped end face and both side surfaces, and these notched grooves 111-172-17s are connected to the oil supply path 15s. = I St , communicated with 15s.
而して前記給油路１５３ 、 ｉ ５ｇ −１’ｓｓ
に通じる切欠凹溝ＩＬ −１７ｔ −１７ｇはシフ
トギヤ７ｍ −’７ｔ −７ｓの回入側、すなわちシ
フトギヤ７８，７□ 、７３が第１〜３シフトフォーク
４．。The oil supply path 153, i5g-1'ss
The notched groove IL-17t-17g leading to the input side of the shift gear 7m-'7t-7s, that is, the shift gears 78, 7□, 73 are connected to the first to third shift forks 4. .
４２．４３に対して回転（第２図矢印方向回転）して入
ってくる側に偏って開口しており、シフトギヤ７□ １
７２ｔ７．の回転を利用してフォーク状爪部６１．−６
ｔ’−６ａの円弧状端面とシフトギヤ７１．７□ 、７
３の周溝Ｌ −Ｌ−８ｍとの係合摺動面間に給油路１
’５ｒ −１５！ −１５３からの潤滑油が導かれ
易いようになっている。42. It rotates relative to 43 (rotation in the direction of the arrow in Figure 2) and opens toward the incoming side, and the shift gear 7□1
72t7. The fork-shaped claw portion 61. -6
The arcuate end face of t'-6a and the shift gear 71.7□, 7
Oil supply path 1 between the engagement sliding surface and the circumferential groove L-L-8m of No.3
'5r -15! The lubricating oil from -153 can be easily guided.
次に第１，２図に示す本発明の１実施例の作用について
説明する。Next, the operation of one embodiment of the present invention shown in FIGS. 1 and 2 will be explained.
いまエンジンの運転によりオイルポンプＰが駆動される
と、加圧潤滑油は油通路１３より主給油路１１に供給さ
れ、該通路１１より通油口１４１ 。When the oil pump P is now driven by engine operation, pressurized lubricating oil is supplied from the oil passage 13 to the main oil supply passage 11, and from the passage 11 to the oil passage 141.
１４□ 、１４．および給油路１５＋ 、１５２ ．
１５゜を通ってフォーク状の爪部６８，６□ 、６３と
シフトギヤ７Ｉ 、７□ 、７．の摺動面間に給油され
、それら間を強制潤滑することがでとる。この場合給油
路Ｌ５Ｉ’−，１５２−１５ｓの爪部６．ｅ６２ ＃６
、側聞口端は、その爪部６８，６ｔ 、ｔ ６ｇの円弧
状内端面およびその両側面に開口される切欠凹溝１７．
．１７２．１７．に連通しているので給油路１５．．１
５２ ．１５３からの潤滑油が、シフトギヤ７１．７□
、１３の周溝８’ｌ ＝ ａｔ ’ｔ ８３の溝底
面およびその両側面に速やかにいきわたってフォーク状
爪部６ｍ 、６□ 、６３とシフトギヤ７８，７□ 、
７３の周溝８１，８□ 、８３間の潤滑効果が一層高め
られる。また給油路１５８，１５２゜１５、の爪部６
ｔ ／＊ ’ｓ、 ２ ’、 −’６’、ａ側゛開ロ端
に連通ずる切欠凹ｓｔｙ、、１７２ ．１７ｓはシフト
ギヤ７、、？、、７．の前述の回入側に位置しているの
で、シフトギヤ７、．７． ９．７．の回転を利用して
、それらの周溝Ｌ ８ｔ−８ｇとフォーク状爪部６
ｔ −６ｔ −６ｍ間に能率よく潤滑油を導くこと
ができる。14□, 14. and oil supply passages 15+, 152.
The fork-shaped pawls 68, 6□, 63 and the shift gears 7I, 7□, 7. This is achieved by supplying oil between the sliding surfaces and forcing lubrication between them. In this case, the claw portion 6 of the oil supply path L5I'-, 152-15s. e62 #6
, the side opening ends are provided with notched grooves 17., which are opened on the arcuate inner end surfaces of the claw portions 68, 6t, t6g, and on both sides thereof.
．． 172.17. Since it communicates with the oil supply path 15. ．． 1
52. Lubricating oil from 153 is applied to shift gear 71.7□
, 13's circumferential groove 8'l = at 't 83's groove bottom surface and both sides thereof, the fork-shaped claw portions 6m, 6□, 63 and shift gears 78, 7□,
The lubrication effect between the circumferential grooves 81, 8□, and 83 of 73 is further enhanced. Also, the claw portion 6 of the oil supply path 158, 152°15.
t/*'s, 2', -'6', a side ``notch concave sty communicating with the open end, 172. 17s is shift gear 7...? ,,7. Since the shift gears 7, . 7. 9.7. Utilizing the rotation of the circumferential grooves L 8t-8g and the fork-shaped pawls 6
Lubricating oil can be efficiently introduced between t-6t-6m.
而して変速操作によりシフトドラム１が回転されると、
第１．３シフトフォーク４ｔ−４ｍは第１．３リード溝
３１’、７’（、に案内されてシフトフォーク軸２上を
左右に摺動し、シフトギヤ７１ 。Then, when the shift drum 1 is rotated by the speed change operation,
The 1.3rd shift forks 4t-4m slide left and right on the shift fork shaft 2 while being guided by the 1.3rd lead grooves 31', 7'(,), and are connected to the shift gear 71.
７、を左右にシフトさせるが、前記幅広の環状油溝１６
ｔ ’−，，１’ ｊ’ｓにより主給油路１１と給
油路１’ ｓ 、 ｊ”： ｔ、、ｓ ｓとは常に連通
状態を保ち、何ら支障なく爪部ａｓ−６ｇとシフトギヤ
７、、？、との摺動面間に潤滑油が供給される。また第
２シフトフオーク４２のみは第２リード溝３．に案内さ
れてシフトフォーク軸２とともに左右に移動するので、
爪部６２とシフトギヤ７、間も何ら支障なく爪部６２と
シフトギヤ７、との摺動面間に潤滑油が供給される。7 to the left and right, the wide annular oil groove 16
t'-,,1'j's, the main oil supply path 11 and oil supply path 1's,j'': t,,ss always maintain a communication state, and the pawl part as-6g and shift gear 7, Lubricating oil is supplied between the sliding surfaces of the shift fork shaft 2 and the shift fork shaft 2. Also, only the second shift fork 42 is guided by the second lead groove 3 and moves left and right together with the shift fork shaft 2.
Lubricating oil is supplied between the sliding surfaces of the claw portion 62 and the shift gear 7 without any problem between the claw portion 62 and the shift gear 7.
以上の実施例により明らかなように本発明によれば、先
端に、シフトギヤの周溝に係合し得るフォーク状爪部を
有するシフトフォークにおいて、前記シフトフォークに
給油路を穿設するとともにそのフォーク状爪部に、は前
記給油路に連通し、かつそのフォーク状爪部の端面およ
び両側面に開口する切欠凹溝を形成したので、潤滑油は
給油路を通って切欠凹溝に至り、ここよりシフトギヤの
周溝の溝底面およびその両側面に向けて同時に供給され
、その周溝の全域に迅速にいきわたってシフトフォーク
のフォーク状爪部とシフトギヤ間の潤滑効果を一層高め
ることができ、シフトギヤの回転およびそのシフトを円
滑軽快に行わしめることができるものである。As is clear from the above embodiments, according to the present invention, in a shift fork having a fork-like pawl portion at its tip that can engage with a circumferential groove of a shift gear, an oil supply passage is bored in the shift fork, and the fork is provided with an oil supply passage. The fork-shaped pawl portion is formed with a notched groove that communicates with the oil supply path and opens on the end face and both side surfaces of the fork-shaped pawl portion, so that the lubricating oil passes through the oil supply path and reaches the notch groove, where it flows. The lubricating effect between the fork-like claws of the shift fork and the shift gear can be further enhanced by simultaneously supplying the lubricant to the bottom surface of the circumferential groove of the shift gear and both sides of the groove, and quickly spreading over the entire circumferential groove. The rotation and shifting can be performed smoothly and easily.
図面は本発明装置の１実施例を示すもので、第１図はそ
の縦断側面図、第２図は第１シフトフオークの側面図で
ある。
４、．４．．４．・・・シフトフォーク、６□、６．。
６３・・・爪部、７．．７．、？、・・・シフトギヤ、
１５＋ 、１５ｔ−１５ｓ・・・給油路、１７．．１
７．。
１７、・・・切欠凹溝
特許出願人 本田技研工業株式会社The drawings show one embodiment of the device of the present invention, and FIG. 1 is a longitudinal sectional side view thereof, and FIG. 2 is a side view of a first shift fork. 4. 4. ．． 4. ...Shift fork, 6□, 6. . 63...claw portion, 7. ．． 7. ,? ,...shift gear,
15+, 15t-15s...oil supply path, 17. ．． 1
7. . 17, ... Notch groove patent applicant Honda Motor Co., Ltd.
Claims (1)
な有するシフトフォークにおいて、前記シフトフォーク
に給油路を穿設す仝とともにそのフォーク状爪部には、
前記給油路に連通し、かつそのフォーク状爪部の端面お
よび両側面に開口する切欠凹溝を形成してなる、シフト
フォークの給油装置。In a shift fork having a fork-like pawl portion at its tip that can engage with a circumferential groove of a shift gear, an oil supply path is bored in the shift fork, and the fork-like pawl portion includes:
An oil supply device for a shift fork, the oil supply device for a shift fork comprising a notched groove that communicates with the oil supply path and opens on an end face and both side faces of the fork-shaped claw portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17319481A JPS5874954A (en) | 1981-10-29 | 1981-10-29 | Oil feeder for shift fork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17319481A JPS5874954A (en) | 1981-10-29 | 1981-10-29 | Oil feeder for shift fork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5874954A true JPS5874954A (en) | 1983-05-06 |
Family
ID=15955834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17319481A Pending JPS5874954A (en) | 1981-10-29 | 1981-10-29 | Oil feeder for shift fork |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5874954A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913053A (en) * | 2015-05-21 | 2015-09-16 | 江苏金源锻造股份有限公司 | Transmission shifting fork formed in forged mode |
-
1981
- 1981-10-29 JP JP17319481A patent/JPS5874954A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913053A (en) * | 2015-05-21 | 2015-09-16 | 江苏金源锻造股份有限公司 | Transmission shifting fork formed in forged mode |
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