AU780995B2 - Shift control device for manual transmission - Google Patents
Shift control device for manual transmission Download PDFInfo
- Publication number
- AU780995B2 AU780995B2 AU72570/00A AU7257000A AU780995B2 AU 780995 B2 AU780995 B2 AU 780995B2 AU 72570/00 A AU72570/00 A AU 72570/00A AU 7257000 A AU7257000 A AU 7257000A AU 780995 B2 AU780995 B2 AU 780995B2
- Authority
- AU
- Australia
- Prior art keywords
- shift
- detent
- control device
- control shaft
- finger
- 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.)
- Ceased
Links
- 230000005540 biological transmission Effects 0.000 title claims description 32
- 230000007935 neutral effect Effects 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000007717 exclusion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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
- F16H63/38—Detents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K20/00—Arrangement or mounting of change-speed gearing control devices in vehicles
-
- 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
- F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Gear-Shifting Mechanisms (AREA)
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
- Control Of Transmission Device (AREA)
Description
Our Ref:7566440 P/00/011 Regulation 3:2
AUSTRALIA
Patents Act 1990
ORIGINAL
COMPLETE SPECIFICATION STANDARD PATENT Applicant(s): Hyundai Motor Company 140-2, Kye-dong Jongro-ku Seoul Republic of Korea (South) Kia Motors Corporation 781-1, Soha-dong Kwangmyung-city Kyungki-do Republic of Korea (South) DAVIES COLLISON CAVE Patent Trade Mark Attorneys Level 10, 10 Barrack Street SYDNEY NSW 2000 Address for Service: Invention Title: Shift control device for manual transmission The following statement is a full description of this invention, including the best method of performing it known to me:- 5020 00-12-27; 1:13PM; 9 3/ 14 SHIFT CONTROL DEVICE FOR MANUAL TRANSMISSION BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a shift control device for a manual transmission, and in particular, to a shift control device capable of preventing transmission vibration from being transferred to a shift lever by avoiding physical contact at a neutral range and on a shift-in operation except when the shift operation is being performed.
10 Description of the Related Art FIG. 1 shows a conventional shift control device for a manual transmission.
In FIG. 1, once a shift lever 51 is manipulated, shift lever manipulation force is transferred to a control shaft 53 such that a finger 55 formed at one end of the control shaft 53 is engaged with a corresponding shift range lug 59 formed on a shift rail 57, resulting in the manipulation force being transferred to the shift rail 57.
The shift rail 57 is provided with a plurality of shift forks 61 at another end thereof such that the shift forks 61 move with sleeves of synchronization devices (not shown) so as to perform a shift operation.
Also, the shift rail 57 is provided with a plurality of poppet grooves 63 and a corresponding number of poppet balls 67 are secured into the poppet P:kWPDOCS RSPECIE\756O_0VApar m_ Feb 2005 Mnmnd.doc-m/02M grooves 63 while being elastically supported by springs 69 such that this configuration provides a detent quality when the shift rail 57 is operated.
In this conventional shift control device, the elements such as the shift lever, control shaft, and shift rail are mechanically linked for operating the shift forks such that the vibration and physical friction caused by shift operation inside the transmission is directly transferred to the shift lever, resulting in degraded shift quality.
SUMMARY OF THE INVENTION The present invention has been made in an effort to solve the above problems of the prior art.
It is an object of the present invention to provide a shift control device capable of preventing transmission vibration and abnormal friction impact among the inside elements from being transferred to the shift lever especially at the neutral range or during a shift-in state by structuring the device without physical contact among the inside elements except during a shift operation.
o. Accordingly the present invention provides a shift control device for a manual transmission comprising: a shift lever for manipulating the transmission; a control shaft 20 connected to a lower end of the shift lever and having a finger vertically projected; a shift rail engaged with the control shaft by receiving the finger of the control shaft into a lug of the shift rail; first detent means interposed between the shift rail and a transmission case for providing detent operation to the shift rail; and second detent means interposed between the control shaft and the transmission case for providing detent operation to the control shaft, and wherein the lug and the finger are engaged with each other with at least onegap between an outer surface of the finger and an inner wall of the lug.
P:\WPDOCS\RS\SPELE756644-AULp_ p eb 2F6 200 dd doc-OV2/05 BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate an embodiment of the invention, and, together with the description, serve to explain the principles of the invention: FIG. 1 is a sectional view of a conventional shift control device for a manual transmission; FIG. 2 is an operational view of a shift control device for a manual transmission in neutral range according to a preferred embodiment of the present invention; FIG. 3 is an operational view of the shift control device of FIG. 2 in a first stage of shifting; *o S* FIG. 4 is an operational view of the shift control device of FIG. 2 in a second stage 15 of shifting; and FIG. 5 is an operational view of the shift control device of FIG. 2 in a third stage of shifting.
S* DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS S. Preferred embodiments of the present invention will be described hereinafter with reference to the accompanying drawings.
FIG. 2 is an operational view of a shift control device for a manual transmission in neutral range according to the present invention 00-12-27; 1:13PM; t 6/ 14 In FIG. 2, a shift control device of the present invention comprises a control shaft 3 having a finger 1 and is connected to a shift lever (not shown) at one end thereof, and a shift rail 5 having a lug 7 for receiving the finger 1 of the control shaft 3 and a shift fork 9 which is engaged to a sleeve 11 of a synchronization device 13 such that a shift lever manipulation force is transferred from the shift lever to the sleeve 11 of the synchronization device 13 so as to operate the sleeve 11.
A first detent means is interposed between one side of the shift rail and a transmission case 17 for providing detent operation and a second detent means is interposed between one side of the control shaft 3 and the transmission case 17.
The first detent means comprises three poppet grooves 15 formed on an upper surface of the shift rail 5, a poppet ball 21 seated on an opening of a receiving hole 19 formed on a corresponding surface of the transmission case 17, and a spring 23 secured in the receiving hole 19 for biasing the poppet ball 21 such that the poppet ball 21 is positioned between the poppet grooves *and the receiving hole 19.
The second detent means comprises three detent grooves 25 formed on an upper surface of the control shaft 3, a detent ball 29 seated around an 20 opening of a receiving hole 27 formed on a corresponding surface of the transmission case 17, and a spring 31 secured in the receiving hole 27 for biasing the detent ball 29 such that the detent ball 29 is positioned between the detent grooves 25 and the receiving hole 27.
The lug 7 is provided with a finger hole opened upward so as to receive 00-12-27; 1:13PM; 1/ 4 9 7/ 14 the finger 1 of the control shaft 3 such that the lug 7 is engaged with the control shaft 3. The lug 7 and the finger 1 are formed in such a way that when they are engaged, there exists gaps P1 and P2 between the inner face of the lug 7 and the outer surface of the finger 1 The first and second detent means operate in stages during a shift operation.
The gaps P1 and P2 are determined according to vibration amplitude inside the transmission such that the vibration inside the transmission is not transferred to the control shaft 3.
The operation of the above structured shift control device for the manual transmission will be described hereinafter with reference to FIG. 3, FIG.
4, and FIG. FIG. 3, FIG. 4, and FIG. 5 are respective operational views of a shift control device of the present invention in the first, second, and third stages.
At the first stage, once the shift lever (not shown) is manipulated from the neutral range illustrated in. FIG. 2 toward a predetermined range, the finger 1 of the control shaft 3 moves in the ranges of the gaps P1 and P2 without moving the shift rail 5, as shown in FIG. 3.
*~In the second stage, as the shift lever is further manipulated, the finger 1 moves to a state of contacting the lug 7 such that the lever manipulation force :20 is transferred to the shift rail 5 (see FIG. Accordingly, the shift fork 9 of the shift rail 5 moves the sleeve 11I of the synchronization device.
In this case, the detent ball 29 is contacted to the detent groove 25 of the control shaft 3 such that the movement of the control shaft 3 is hindered by projected portions defining the detent grooves 25, resulting in a detent feeling.
00-12-27; 1:13PM; 0/ 14 At this time, the poppet ball 21 is not completely positioned in the poppet groove of the shift rail At the third stage, as shown in FIG. 5, the poppet ball 21 positions itself completely in the poppet groove 15 by an the elastic force of the spring 23 such that the shift rail 5 is moved so as to complete the operation of the synchronization device 13.
As illustrated above, in the shift control device for the manual transmission of the present invention, since there exists gaps P1 and P2 between the inner face of the lug 7 of the shift rail 5 and the outer surface of the finger 1 of the control shaft 3 when the finger 1 is engaged with the lug 7, vibration caused by the transmission is prevented from being transferred to the shift lever and abnormal friction can be avoided. Accordingly, the shift quality is improved.
While this invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Throughout this specification and the claims which follow, unless the context requires otherwise, the word "comprise", and variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps.
'The reference to any prior art in this specification is not, and should not be taken as, an acknowledgement or any form of suggestion that that prior art forms part of the common general acknowledge in Australia.
Claims (4)
1. A shift control device for a manual transmission comprising: a shift lever for manipulating the transmission; a control shaft connected to a lower end of the shift lever and having a finger vertically projected; a shift rail engaged with the control shaft by receiving the finger of the control shaft into a lug of the shift rail; first detent means interposed between the shift rail and a transmission case for providing detent operation to the shift rail; and second detent means interposed between the control shaft and the S•transmission case for providing detent operation to the control shaft, and wherein the lug and the finger are engaged with each other with at least one gap between an outer surface of the finger and an inner wall of the lug.
2. A shift control device of claim 1 wherein the first detent means g* comprises: f* poppet grooves formed on the shift rail; a poppet ball seated on an opening of a first receiving hole formed on a 20 corresponding wall of the transmission case; and a spring inserted into the receiving hole for biasing the poppet ball to the poppet grooves.
3. A shift control device of claim 1 wherein the second detent means comprises: detent grooves formed on the control shaft; a detent ball seated on an opening of a second receiving hole formed on a corresponding wall of the transmission case; and a spring inserted into the receiving hole for biasing the detent ball to the ?AWPDOCSARPEnPCIEN7566440ALU Feb 2005 .mwdaidocI02105 detent grooves.
4. A shift control device of claim 4 wherein the gaps are varied according to an amplitude of vibration inside of the transmission. A shift control device for a manual transmission constructed and arranged substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings of Figures 2 to 10 DATED this 1st February 2005 i HYUNDAI MOTOR COMPANY AND KIA MOTORS CORPORATION By Their Patent Attorneys 0. DAVIES COLLISON CAVE *9 se 0 o *a
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2000-40128 | 2000-07-13 | ||
| KR10-2000-0040128A KR100387468B1 (en) | 2000-07-13 | 2000-07-13 | Shift control device for mt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU7257000A AU7257000A (en) | 2002-01-17 |
| AU780995B2 true AU780995B2 (en) | 2005-04-28 |
Family
ID=19677770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU72570/00A Ceased AU780995B2 (en) | 2000-07-13 | 2000-12-29 | Shift control device for manual transmission |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP2002039378A (en) |
| KR (1) | KR100387468B1 (en) |
| CN (1) | CN1234981C (en) |
| AU (1) | AU780995B2 (en) |
| DE (1) | DE10065753A1 (en) |
| GB (1) | GB2364752B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4450634B2 (en) * | 2004-01-14 | 2010-04-14 | 株式会社東海理化電機製作所 | Shift lever device |
| FR2887949B1 (en) * | 2005-07-04 | 2008-07-18 | Renault Sas | BALLAGE ON PASSING FINGER |
| FR2888303A1 (en) * | 2005-07-05 | 2007-01-12 | Renault Sas | LOCKING DEVICE AND PARALLEL SHAFT GEARBOX |
| FR2892788B1 (en) | 2005-10-28 | 2008-01-18 | Renault Sas | DEVICE AND METHOD FOR CONTROLLING A GEARBOX |
| FR2897917B1 (en) * | 2006-02-24 | 2008-06-06 | Peugeot Citroen Automobiles Sa | GEARBOX OF MOTOR VEHICLE |
| DE102009030823A1 (en) * | 2009-06-26 | 2011-01-20 | Koki Technik Transmission Systems Gmbh | Rastiervorrichtung for a shift shaft |
| CN101804170B (en) * | 2010-04-09 | 2012-06-20 | 铜陵市维新投资咨询有限公司 | Traditional Chinese medicine composition for treating hyperglycemia and preparation method thereof |
| DE102012213177B4 (en) * | 2012-07-26 | 2019-12-19 | Schaeffler Technologies AG & Co. KG | Shift dome for a manual transmission of a motor vehicle |
| JP6093150B2 (en) * | 2012-11-06 | 2017-03-08 | 富士重工業株式会社 | Shift control structure of transmission |
| KR102223739B1 (en) * | 2016-03-18 | 2021-03-04 | 엘에스엠트론 주식회사 | Sleeve Supporting Apparatus for Transmission of Agricultural Vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB841798A (en) * | 1958-09-25 | 1960-07-20 | Tatra Np | Improvements in or relating to synchromesh gears |
| US4807489A (en) * | 1984-07-26 | 1989-02-28 | Zahnradfabrik Friedrichshafen Ag | Gear shift device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5835886B2 (en) * | 1976-11-12 | 1983-08-05 | トヨタ自動車株式会社 | Transmission shift positioning mechanism |
| JPS6136412Y2 (en) * | 1979-10-03 | 1986-10-22 | ||
| JPS5653632A (en) * | 1979-10-09 | 1981-05-13 | Sanko Kagaku Kk | Preparation of o-phenylphenol |
| JPS57137747A (en) * | 1981-02-17 | 1982-08-25 | Toyota Motor Corp | Synchronizing device for speed changing gear |
-
2000
- 2000-07-13 KR KR10-2000-0040128A patent/KR100387468B1/en not_active Expired - Fee Related
- 2000-12-28 JP JP2000402754A patent/JP2002039378A/en active Pending
- 2000-12-29 GB GB0031858A patent/GB2364752B/en not_active Expired - Fee Related
- 2000-12-29 DE DE10065753A patent/DE10065753A1/en not_active Ceased
- 2000-12-29 CN CNB001206885A patent/CN1234981C/en not_active Expired - Fee Related
- 2000-12-29 AU AU72570/00A patent/AU780995B2/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB841798A (en) * | 1958-09-25 | 1960-07-20 | Tatra Np | Improvements in or relating to synchromesh gears |
| US4807489A (en) * | 1984-07-26 | 1989-02-28 | Zahnradfabrik Friedrichshafen Ag | Gear shift device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002039378A (en) | 2002-02-06 |
| GB2364752B (en) | 2004-07-07 |
| CN1234981C (en) | 2006-01-04 |
| GB2364752A (en) | 2002-02-06 |
| KR100387468B1 (en) | 2003-06-18 |
| GB0031858D0 (en) | 2001-02-14 |
| KR20020006753A (en) | 2002-01-26 |
| DE10065753A1 (en) | 2002-01-24 |
| CN1333145A (en) | 2002-01-30 |
| AU7257000A (en) | 2002-01-17 |
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