JPH0312054U - - Google Patents

Info

Publication number
JPH0312054U
JPH0312054U JP1989070285U JP7028589U JPH0312054U JP H0312054 U JPH0312054 U JP H0312054U JP 1989070285 U JP1989070285 U JP 1989070285U JP 7028589 U JP7028589 U JP 7028589U JP H0312054 U JPH0312054 U JP H0312054U
Authority
JP
Japan
Prior art keywords
operating member
operating
tool
speed change
vehicle
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.)
Granted
Application number
JP1989070285U
Other languages
Japanese (ja)
Other versions
JPH0722528Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1989070285U priority Critical patent/JPH0722528Y2/en
Publication of JPH0312054U publication Critical patent/JPH0312054U/ja
Application granted granted Critical
Publication of JPH0722528Y2 publication Critical patent/JPH0722528Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Gear-Shifting Mechanisms (AREA)
  • Control Of Transmission Device (AREA)
  • Vibration Prevention Devices (AREA)
  • Control Of Fluid Gearings (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

図面は本考案に係る車速制御付き作業車の変速
操作構造の実施例を示し、第１図は要部の断面図
、第２図は操縦部の縦断側面図、第３図は制御構
成を示す概略図、第４図及び第５図は要部の断面
図、第６図はコンバイン前部の側面図である。 ３……人為操作具、７……静油圧式無段変速装
置、２０，２１……操作部材、２３……スプリン
グ、３０……電動アクチユエータ、３１……自動
制御手段、３２……上限牽制手段、３３……弾性
体。 The drawings show an embodiment of the speed change operation structure for a work vehicle with vehicle speed control according to the present invention, FIG. 1 is a cross-sectional view of the main part, FIG. 2 is a longitudinal side view of the control section, and FIG. 3 is a control configuration. The schematic drawings, FIGS. 4 and 5 are sectional views of important parts, and FIG. 6 is a side view of the front part of the combine. 3... Human operating tool, 7... Hydrostatic continuously variable transmission, 20, 21... Operating member, 23... Spring, 30... Electric actuator, 31... Automatic control means, 32... Upper limit checking means , 33...Elastic body.

Claims (1)

【実用新案登録請求の範囲】 走行変速用の人為操作具３に連結される第１操
作部材２０と走行用の静油圧式無断変速装置７に
連結される第２操作部材２１とを、突合せ状態で
配設すると共に、前記第１操作部材２０の端部と
これに対向位置する前記第２操作部材２１の端部
とを接当状態に保持するための初期圧接用のスプ
リング２３を介して前記両操作部材２０，２１を
連動連結し、前進減速方向へは第１操作部材２０
によつて第２操作部材２１を直接接当操作し、前
進増速方向へは前記スプリング２３を介して第１
操作部材２０の操作力を第２操作部材２１に伝達
するよう構成し、かつ、作業負荷検出情報に基づ
いて作業負荷を設定範囲内に維持させるように前
記人為操作具３を電動アクチユエータ３０によつ
て自動的に操作する自動制御手段３１を設け、前
記人為操作具３が前記静油圧式無断変速装置７に
よる前進最高速度に対応する操作位置を越えた状
態で前記自動制御手段３１の増速側への作動を牽
制阻止する上限牽制手段３２を設けてある車速制
御付き作業車の変速操作構造において、 前記第１操作部材２０の端部とこれに対向位置
する前記第２操作部材２１の端部との間に、振動
吸収用の弾性体３３を設けてある車速制御付き作
業車の変速操作構造。[Claims for Utility Model Registration] The first operating member 20 connected to the human operating tool 3 for traveling speed change and the second operating member 21 connected to the hydrostatic non-stop transmission 7 for traveling are brought into abutting state. and an initial pressure contact spring 23 for holding the end of the first operating member 20 and the end of the second operating member 21 located opposite thereto in contact with each other. Both operating members 20 and 21 are interlocked and connected, and the first operating member 20 is used in the forward deceleration direction.
The second operating member 21 is directly brought into contact with the second operating member 21, and the first operating member 21 is operated via the spring 23 in the forward speed increasing direction.
The human operating tool 3 is configured to transmit the operating force of the operating member 20 to the second operating member 21, and the electric actuator 30 is configured to maintain the workload within a set range based on workload detection information. an automatic control means 31 that automatically operates the automatic control means 31 when the manual operation tool 3 exceeds the operation position corresponding to the maximum forward speed of the hydrostatic continuously variable transmission 7; In a speed change operation structure for a working vehicle with vehicle speed control, which is provided with an upper limit check means 32 for checking and preventing the operation of A speed change operation structure for a work vehicle with vehicle speed control, in which an elastic body 33 for vibration absorption is provided between the .
JP1989070285U 1989-06-15 1989-06-15 Speed change operation structure of work vehicle with vehicle speed control Expired - Lifetime JPH0722528Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989070285U JPH0722528Y2 (en) 1989-06-15 1989-06-15 Speed change operation structure of work vehicle with vehicle speed control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989070285U JPH0722528Y2 (en) 1989-06-15 1989-06-15 Speed change operation structure of work vehicle with vehicle speed control

Publications (2)

Publication Number Publication Date
JPH0312054U true JPH0312054U (en) 1991-02-07
JPH0722528Y2 JPH0722528Y2 (en) 1995-05-24

Family

ID=31606317

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989070285U Expired - Lifetime JPH0722528Y2 (en) 1989-06-15 1989-06-15 Speed change operation structure of work vehicle with vehicle speed control

Country Status (1)

Country Link
JP (1) JPH0722528Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020098032A (en) * 2020-02-12 2020-06-25 ヤンマーパワーテクノロジー株式会社 Work vehicle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51138268A (en) * 1975-05-27 1976-11-29 Toyo Umpanki Co Ltd Enctine stop prevention device for hydraulic drive vehicles
JPS5633250A (en) * 1979-08-17 1981-04-03 Toshiba Mach Co Ltd Speed control device having speed sensing change-over circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51138268A (en) * 1975-05-27 1976-11-29 Toyo Umpanki Co Ltd Enctine stop prevention device for hydraulic drive vehicles
JPS5633250A (en) * 1979-08-17 1981-04-03 Toshiba Mach Co Ltd Speed control device having speed sensing change-over circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020098032A (en) * 2020-02-12 2020-06-25 ヤンマーパワーテクノロジー株式会社 Work vehicle

Also Published As

Publication number Publication date
JPH0722528Y2 (en) 1995-05-24

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