CN106015546B - Limit-type gearshift and its speed changer - Google Patents
Limit-type gearshift and its speed changer Download PDFInfo
- Publication number
- CN106015546B CN106015546B CN201610569520.3A CN201610569520A CN106015546B CN 106015546 B CN106015546 B CN 106015546B CN 201610569520 A CN201610569520 A CN 201610569520A CN 106015546 B CN106015546 B CN 106015546B
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- Prior art keywords
- gear
- gear lever
- limit
- fixed
- lever
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Classifications
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- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
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- 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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/18—Preventing unintentional or unsafe shift, e.g. preventing manual shift from highest gear to reverse gear
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- 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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/18—Preventing unintentional or unsafe shift, e.g. preventing manual shift from highest gear to reverse gear
- F16H2061/185—Means, e.g. catches or interlocks, for preventing unintended shift into reverse gear
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The invention discloses a kind of limit-type gearshifts, including gear lever and for guiding the mobile guide chute shifted gears of gear lever, the guide chute is transferred between the forward range and position of reversing gear of gear lever to be limited for the movement to gear lever in forward gear and between reversing gear, the gearshift can the movement of gear lever to gearbox in forward gear and between reversing gear limit, it avoids damaging gearbox because of maloperation, while improving gearbox handling comfort.
Description
Technical field
The present invention relates to gearshift and speed changer, specifically a kind of limit-type gearshift and its speed changer.
Background technique
A rectangle square hole is usually set on the position retaining plate of the gearbox (or reduction gearbox) of existing mini-tiller, passes through the rectangle
Square hole carries out conducting wire to the gear lever of gearbox (or reduction gearbox), it is ensured that gear lever will not shift in shift, operator
When member's manipulation gearbox (or reduction gearbox) moves back gear, gear lever is directly accidentally often linked into down reverse gear by forward gear, thus
Cause gearbox (or reduction gearbox) generation to beat tooth, gearbox is caused to damage, influences going on smoothly for entire farming work.
Therefore, in order to solve the above problem, need it is a kind of can gear lever to gearbox in forward gear and between reversing gear
Movement is limited, and avoids gearbox from damaging, while improving the limit-type gearshift of gearbox handling comfort.
Summary of the invention
In view of this, gearbox can be changed by providing one kind the purpose of the present invention is overcoming defect in the prior art
Movement of the bar in forward gear and between reversing gear is limited, and avoids gearbox from damaging, while improving gearbox handling comfort
Limit-type gearshift and its speed changer.
Limit-type gearshift of the invention, including gear lever and for guiding the mobile guiding shifted gears of gear lever sliding
Slot, wherein gear lever can be directly slidably matched with guide chute or be slided using the gear pointer and guiding being fixed on gear lever
The guiding of gear lever is realized in dynamic cooperation, and the guide chute is transferred between the forward range and position of reversing gear of gear lever for exchanging
Movement of the bar in forward gear and between reversing gear is limited, and is reversed gear or when gear lever will be linked by forward gear by before reversing gear and being linked into
Into when keeping off, gear lever is limited the turnover for being directed to sliding slot, and operator is avoided accidentally directly to be linked into gear lever by forward gear
It reverses gear, or causes gearbox (or reduction gearbox) generation to beat tooth by reversing gear directly to put into forward gear, gearbox is caused to damage；
Further, the guide chute is the stepped groove being arranged along the shifting direction of gear lever, which includes two
Turnover between the first slot section and the second slot section and the first slot section of connection and the second slot section of stick shift direction setting
The turnover slot section of slot section, the stepped groove forms the limit, the gear pointer on gear lever or gear lever in the first slot section and
It when being slided between the second slot section, will be limited by turnover slot section, gear lever is made directly not slide into the second slot section from the first slot section,
And then avoid maloperation；
Further, the stepped groove is divided into forward gear sliding slot and the sliding slot that reverses gear by turnover slot section；The turnover slot section is right
The neutral gear position for answering gear lever can be grasped directly when operator needs to be pushed into neutral gear by forward gear, or is pushed into neutral gear by reversing gear
Make gear lever and slide into along shifting direction to be resisted by turnover slot section, therefore, it can be achieved that gear shifting action blind operation, improve shift
The convenience of operation, while guaranteeing into gear accurately, to be conducive to extend the service life of speed changer；
Further, the gear lever is fixed with gear pointer, and the gear pointer with guide chute by being slidably matched
Guidance gear lever movement is shifted gears, and is conducive to improve the clarity of gear instruction, drop using gear pointer and guide chute cooperation
The probability of low maloperation, meanwhile, the dimensional accuracy of gear pointer is easy to guarantee, therefore, advantageously ensures that it matches with guide chute
The precision of conjunction improves the guiding accuracy and limit accuracy of guide chute, meanwhile, reduce shift vibration of bar, in addition, this cooperation
Skimming wear is transferred to gear pointer by gear lever by form, is also convenient for replacing when gear pointer excessive wear, is conducive to mention
The service life of high gear lever；
Further, the gear lever is matched in a manner of it can slide and can be swung around shifting direction along shifting direction with car body
It closes, gear lever releases limit by swinging around shifting direction；When gear lever is slided along shifting direction, make to limit pointer in forward gear
Sliding slot or sliding in sliding slot of reversing gear can drive gear lever to put around shifting direction when shifting gears between need in forward gear and reverse gear
Moving, which refers to limit, just slides in turnover slot to release the position-limiting action of turnover slot section；
Further, the gear lever is fixed with the shift plate being axially moveable for shift fork axis, and the shift plate is dialled with edge
The mode of fork shaft axially-fixed and radial sliding and shift fork axis connection, the shifting direction of gear lever and the reciprocating movement direction of shift fork axle
Unanimously, it when gear lever is slided along shifting direction, is moved and is shifted gears along axial reciprocating using shift plate shift fork axis, work as shift
Bar is swung, and makes gear pointer in turn section sliding, shift plate is moved radially along shift fork axle, does not drive shift fork axle to act, institute
Stating shift plate is T-shaped plate, and the web of T-shaped plate is perpendicularly fixed at gear lever, and the edge of a wing on the upside of the web of T-shaped plate is contracted from the bottom up
Neck forms the gear pointer, and the edge of a wing on the downside of web bending and is perpendicularly fixed at drive pin in the horizontal direction, this knot
Gear pointer is integrated in the shift plate of structure, achieve the purpose that one it is multi-purpose, improve the compactedness of this gearshift；
Limit-type gearshift of the invention further includes the position retaining plate fixed with car body, and the gear lever is by being set to gear
Strip-shaped hole on the plate of position penetrates on the inside of position retaining plate；The length of strip-shaped hole to the shifting direction perpendicular to gear lever, convenient for gear lever into
Row swings to release limit, and the guide chute is set to the position retaining plate, and gear pointer inner end, which is fixed on, is located at gear
Gear lever rod segment on the inside of the plate of position, gear pointer outer end are stretched out from guide chute and are slidably matched with guide chute；By gear lever
Bar shaped via hole and guide chute be integrated on position retaining plate, can be improved the compactedness of gearshift；
Further, the position retaining plate is fixed by a support with car body, and set parallel with shift fork axle is fixed on the support
The connecting shaft that a cruciform joint is connect with gear lever is set and passes through, the cruciform joint includes two and is mutually perpendicular to fixed set
Pipe, two described sleeve pipes are coated at gear lever and connecting shaft respectively, are connected between cruciform joint and support for making gear pointer
Always the torsional spring of guide chute transverse direction side is acted against,；Change the torsional spring make gear lever after the completion of reversing gear enter forward gear when
It can be quickly returned to the position of forward gear, realize gear lever returning quickly, while improving its stability, in addition, stepped groove
Forward gear sliding slot should be tilted to the side that gear pointer is deflected by torsional spring elastic force, improved the stopper power of forward gear, avoided off-gear；
Limit-type gearshift of the invention further includes the shifting block fixed with shift fork axle, and the shifting block is radially set along shift fork axle
There is card slot, the drive pin being axially moveable with card slot cooperation for shift fork axis is fixed in the shift plate of the gear lever, is driven
Dynamic pin outer end is fixed with spacing head, and drive pin is avoided to deviate from out of card slot；
The invention also discloses a kind of speed changer, the limit-type gearshift is installed on the speed changer and drives manipulation should
Speed changer is shifted gears, and when gear lever will be linked by forward gear to reverse gear or put into forward gear by reversing gear, gear lever will be directed to
The turnover of sliding slot is limited, and is avoided operator from being accidentally directly linked into gear lever by forward gear and is reversed gear, or by the direct extension that reverses gear
Entering forward gear causes gearbox (or reduction gearbox) generation to beat tooth, and gearbox is caused to damage；
The beneficial effects of the present invention are: limit-type gearshift of the invention, forward range of the guide chute in gear lever
It transfers between position of reversing gear and is limited for the movement to gear lever in forward gear and between reversing gear, when gear lever will be by advancing
Gear is linked into when reversing gear or being put into forward gear by reversing gear, and gear lever is limited the turnover for being directed to sliding slot, and operator is avoided to miss
Gear lever is directly linked by forward gear and is reversed gear, or causes gearbox (or reduction gearbox) to occur by reversing gear directly to put into forward gear
Tooth is beaten, gearbox is caused to damage.
Detailed description of the invention
The invention will be further described with reference to the accompanying drawings and examples:
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is explosive view of the invention；
Fig. 3 is the structural schematic diagram of position retaining plate of the invention.
Specific embodiment
Fig. 1 is structural schematic diagram of the invention, as shown, the limit-type gearshift of the present embodiment, including gear lever
With for guiding the mobile guide chute shifted gears of gear lever, wherein gear lever can directly be slidably matched with guide chute or
It is slidably matched using the gear pointer 4 and guiding that are fixed on gear lever and realizes the guiding of gear lever, the guide chute is changing
It transfers between the forward range of bar and position of reversing gear and is limited for the movement to gear lever in forward gear and between reversing gear, when
Gear lever will be linked by forward gear when reversing gear or being put into forward gear by reversing gear, and gear lever is limited the turnover for being directed to sliding slot,
It avoids operator from being accidentally directly linked into gear lever by forward gear to reverse gear, or leads to gearbox by reversing gear directly to put into forward gear
Tooth is beaten in (or reduction gearbox) generation, and gearbox is caused to damage；Before gear lever in the present embodiment includes detachable be fixedly connected
Body 3 and rear body 1, rear body 1 are fixedly arranged at the front end with the connecting cylinder 2 cooperated with precursor 3.
In the present embodiment, the guide chute is the stepped groove being arranged along the shifting direction of gear lever, which includes
Between two the first slot sections and the second slot section and the first slot section of connection and the second slot section along the setting of stick shift direction
It transfers slot section 14, the turnover slot section 14 of the stepped groove forms the limit, and the gear pointer 4 on gear lever or gear lever is the
It when being slided between one slot section and the second slot section, will be limited by turnover slot section 14, and keep gear lever directly sliding from the first slot section
Enter the second slot section, and then avoids maloperation.
In the present embodiment, the stepped groove is divided into forward gear sliding slot 12 and the sliding slot 13 that reverses gear by turnover slot section 14；It is described
The neutral gear position of the corresponding gear lever of slot section 14 of transferring when operator needs to be pushed into neutral gear by forward gear, or is pushed into sky by reversing gear
When gear, it can directly operate gear lever and slid into along shifting direction and resisted by turnover slot section 14, therefore, it can be achieved that gear shifting action
Blind operation, improves the convenience of gear shift operation, while guaranteeing into gear accurately, to be conducive to extend the service life of speed changer.
In the present embodiment, the gear lever is fixed with gear pointer 4, and the gear pointer 4 passes through the cunning with guide chute
Dynamic cooperation guidance gear lever movement is shifted gears, and is conducive to improve the clear of gear instruction with guide chute cooperation using gear pointer 4
Clear degree reduces the probability of maloperation, meanwhile, the dimensional accuracy of gear pointer 4 is easy to guarantee, therefore, advantageously ensures that it and leads
The precision cooperated to sliding slot, improves the guiding accuracy and limit accuracy of guide chute, meanwhile, reduce shift vibration of bar, in addition,
Skimming wear is transferred to gear pointer 4 by gear lever by this fit form, is also convenient for more when gear 4 excessive wear of pointer
It changes, is conducive to the service life for improving gear lever.
In the present embodiment, the gear lever by can along shifting direction slide and can around shifting direction swing in a manner of and car body
Cooperation, gear lever release limit by swinging around shifting direction；When gear lever is slided along shifting direction, make to limit pointer 4 preceding
It is slided in into gear sliding slot 12 or the sliding slot 13 that reverses gear, when needing to shift gears in forward gear and between reversing gear, gear lever can be driven around changing
Gear direction swing make limit refer to just turnover slot in sliding with release turnover slot section 14 position-limiting action.
In the present embodiment, the gear lever is fixed with the shift plate being axially moveable for shift fork axis 10, the shift plate
It is connect in a manner of along the sliding of 10 axially-fixed and radial of shift fork axle with shift fork axle 10, shifting direction and the shift fork axle 10 of gear lever
It is consistent to move back and forth direction, when gear lever is slided along shifting direction, is moved using shift plate shift fork axis 10 along axial reciprocating
It shifts gears, when gear lever is swung, makes gear pointer 4 in turn section sliding, shift plate is moved radially along shift fork axle 10, no
Shift fork axle 10 is driven to act, the shift plate is T-shaped plate, and the web of T-shaped plate is perpendicularly fixed at gear lever, positioned at the web of T-shaped plate
The necking down from the bottom up of the edge of a wing of upside forms the gear pointer 4, and the edge of a wing on the downside of web bending and is hung down in the horizontal direction
Directly be fixed on drive pin 7, gear pointer 4 be integrated in the shift plate of this structure, achieve the purpose that one it is multi-purpose, improve and originally change
The compactedness of retaining device.
The limit-type gearshift of the present embodiment further includes the position retaining plate 5 fixed with car body, and the gear lever passes through setting
5 inside of position retaining plate is penetrated in the strip-shaped hole 15 on position retaining plate 5；The length of strip-shaped hole 15 is to the shifting direction perpendicular to gear lever, just
It is swung in gear lever to release limit, the guide chute is set to the position retaining plate 5,4 inner end of gear pointer
It is fixed on the gear lever rod segment for being located at 5 inside of position retaining plate, 4 outer end of gear pointer is stretched out from guide chute and slided with guide chute
Cooperation；The bar shaped via hole and guide chute of gear lever are integrated on position retaining plate 5, can be improved the compactedness of gearshift.
In the present embodiment, the position retaining plate 5 is fixed by a support 11 with car body, is fixed on the support 11 and shift fork
The connecting shaft that axis 10 is arranged in parallel and is connect by a cruciform joint 6 with gear lever, the cruciform joint 6 include two and mutually hang down
Directly fixed casing, two described sleeve pipes are coated at gear lever and connecting shaft respectively, connect between cruciform joint 6 and support 11 useful
In the torsional spring 9 for making gear pointer 4 act against guide chute transverse direction side always,；Changing the torsional spring 9 makes gear lever in completion of reversing gear
It can quickly be returned to the position of forward gear when entering forward gear afterwards, realize gear lever returning quickly, while improving its stability,
In addition, the forward gear sliding slot 12 of stepped groove should be tilted to the side that gear pointer 4 is deflected by 9 elastic force of torsional spring, forward gear is improved
Stopper power, avoid off-gear.
The limit-type gearshift of the present embodiment further includes the shifting block fixed with shift fork axle 10, and the shifting block is along shift fork axle 10
It is radially provided with card slot 8, is fixed in the shift plate of the gear lever and is used for what shift fork axis 10 was axially moveable with the cooperation of card slot 8
Drive pin 7,7 outer end of drive pin are fixed with spacing head, drive pin 7 are avoided to deviate from out of card slot 8.
The speed changer of the present embodiment, the limit-type gearshift be installed on the speed changer and drive manipulate the speed changer into
Row shift, when gear lever will be linked by forward gear to reverse gear or put into forward gear by reversing gear, gear lever will be directed to turning for sliding slot
Folding is limited, and is avoided operator from being accidentally directly linked into gear lever by forward gear and is reversed gear, or is directly put into forward gear by reversing gear
Cause gearbox (or reduction gearbox) generation to beat tooth, gearbox is caused to damage.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (6)
1. a kind of limit-type gearshift, it is characterised in that: including gear lever and for guiding gear lever movement to shift gears
Guide chute, the guide chute transfer between the forward range and position of reversing gear of gear lever for gear lever forward gear with
Movement between reversing gear is limited；It further include the shifting block fixed with shift fork axle, the shifting block is radially provided with card slot along shift fork axle,
The drive pin being axially moveable with card slot cooperation for shift fork axis, drive pin outer end are fixed in the shift plate of the gear lever
It is fixed with spacing head；The gear lever is fixed with gear pointer, and the gear pointer with being slidably matched for guide chute by drawing
Gear lever movement is led to shift gears；It further include the position retaining plate fixed with car body, the gear lever is by being set on position retaining plate
Strip-shaped hole penetrates on the inside of position retaining plate；The guide chute is set to the position retaining plate, and position retaining plate is fixed in gear pointer inner end
The gear lever rod segment of inside, gear pointer outer end are stretched out from guide chute and are slidably matched with guide chute；The gear lever is solid
Surely have a shift plate being axially moveable for shift fork axis, the shift plate in a manner of along the sliding of shift fork axle axially-fixed and radial with
Shift fork axis connection, the shift plate are T-shaped plate, and the web of T-shaped plate is perpendicularly fixed at gear lever, on the upside of the web of T-shaped plate
Edge of a wing necking down from the bottom up forms the gear pointer, and the edge of a wing on the downside of web bending and is perpendicularly fixed in the horizontal direction
Drive pin.
2. limit-type gearshift according to claim 1, it is characterised in that: the guide chute is changing along gear lever
The stepped groove of direction setting is kept off, the turnover slot section of the stepped groove forms the limit.
3. limit-type gearshift according to claim 2, it is characterised in that: the stepped groove is divided by turnover slot section
Forward gear sliding slot and the sliding slot that reverses gear；The turnover slot section corresponds to the neutral gear position of gear lever.
4. limit-type gearshift according to claim 3, it is characterised in that: the gear lever along shifting direction can slide
It moves and can cooperate around the mode and car body that shifting direction is swung, and gear lever along shifting direction sliding by making gear pointer preceding
Into gear sliding slot or the sliding slot that reverses gear in slide, gear lever by around shifting direction swing make gear pointer turnover slot section in sliding with
Release the limit.
5. limit-type gearshift according to claim 1, it is characterised in that: the position retaining plate passes through a support and car body
It is fixed, it is fixed on the support and the connecting shaft that a cruciform joint is connect with gear lever is arranged in parallel and passed through with shift fork axle, institute
It states cruciform joint and includes two and be mutually perpendicular to fixed casing, two described sleeve pipes are coated at gear lever and connecting shaft respectively.
6. a kind of speed changer using limit-type gearshift described in claim 1-5 any claim, it is characterised in that:
The limit-type gearshift is installed on the speed changer and the manipulation speed changer is driven to shift gears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610569520.3A CN106015546B (en) | 2016-07-19 | 2016-07-19 | Limit-type gearshift and its speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610569520.3A CN106015546B (en) | 2016-07-19 | 2016-07-19 | Limit-type gearshift and its speed changer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106015546A CN106015546A (en) | 2016-10-12 |
| CN106015546B true CN106015546B (en) | 2019-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610569520.3A Active CN106015546B (en) | 2016-07-19 | 2016-07-19 | Limit-type gearshift and its speed changer |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202812157U (en) * | 2012-08-28 | 2013-03-20 | 重庆华世丹机械制造有限公司 | Shifting device of mini-tiller |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5967125A (en) * | 1982-10-08 | 1984-04-16 | Iseki & Co Ltd | Restraining device of speed-change operation in cultivator |
| JPH0971152A (en) * | 1995-09-07 | 1997-03-18 | Kubota Corp | Operation section structure for work machine |
| JP3530731B2 (en) * | 1997-12-03 | 2004-05-24 | 株式会社クボタ | Speed change device for walking type work machine |
| US6889569B2 (en) * | 2001-08-09 | 2005-05-10 | Kubota Corporation | Change speed apparatus for a working vehicle that engages in an operation while moving forward and backward |
| JP2005067339A (en) * | 2003-08-22 | 2005-03-17 | Mitsubishi Agricult Mach Co Ltd | Shift operating device for walking type working machine |
| JP3627748B2 (en) * | 2003-08-28 | 2005-03-09 | 井関農機株式会社 | Ride type rice transplanter |
| KR101388358B1 (en) * | 2009-12-22 | 2014-04-22 | 가부시끼 가이샤 구보다 | Work vehicle |
| JP6444709B2 (en) * | 2014-12-01 | 2018-12-26 | 三菱マヒンドラ農機株式会社 | Shift restriction mechanism in walking type work machine |
| CN205806437U (en) * | 2016-07-19 | 2016-12-14 | 隆鑫通用动力股份有限公司 | Shifter of transmission and variator thereof |
-
2016
- 2016-07-19 CN CN201610569520.3A patent/CN106015546B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202812157U (en) * | 2012-08-28 | 2013-03-20 | 重庆华世丹机械制造有限公司 | Shifting device of mini-tiller |
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| CN106015546A (en) | 2016-10-12 |
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