JPS59196705U - Hydraulic cylinder structure for raising and lowering the lift arm of a tractor - Google Patents

Hydraulic cylinder structure for raising and lowering the lift arm of a tractor

Info

Publication number
JPS59196705U
JPS59196705U JP9306483U JP9306483U JPS59196705U JP S59196705 U JPS59196705 U JP S59196705U JP 9306483 U JP9306483 U JP 9306483U JP 9306483 U JP9306483 U JP 9306483U JP S59196705 U JPS59196705 U JP S59196705U
Authority
JP
Japan
Prior art keywords
tractor
lowering
lift arm
hydraulic cylinder
raising
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
JP9306483U
Other languages
Japanese (ja)
Other versions
JPH0438652Y2 (en
Inventor
矢野　三雄
Original Assignee
セイレイ工業株式会社
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 by セイレイ工業株式会社 filed Critical セイレイ工業株式会社
Priority to JP9306483U priority Critical patent/JPS59196705U/en
Publication of JPS59196705U publication Critical patent/JPS59196705U/en
Application granted granted Critical
Publication of JPH0438652Y2 publication Critical patent/JPH0438652Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Lifting Devices For Agricultural Implements (AREA)
  • Actuator (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は本考案実施例に係るトラクタの全体側面図、第
２図は要部縦断面側面図、第３図は要部縦断面拡大側面
図、第４図は油圧回路図である。 Ａ：トラクタ、６：リフトアーム、１２：油圧シリ・ン
ダ、１４ニジリンダ本体、１６：内底面、２０：凹状部
、２１：油路、２２：バイパス、２３：バルブ、２６：
ピストンヘッド、２８：下底面、２９：凸状部。FIG. 1 is an overall side view of a tractor according to an embodiment of the present invention, FIG. 2 is a vertical sectional side view of the main part, FIG. 3 is an enlarged vertical sectional side view of the main part, and FIG. 4 is a hydraulic circuit diagram. A: Tractor, 6: Lift arm, 12: Hydraulic cylinder, 14 Niji cylinder body, 16: Inner bottom surface, 20: Concave portion, 21: Oil passage, 22: Bypass, 23: Valve, 26:
Piston head, 28: lower bottom surface, 29: convex portion.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] トラクタＡのリフトアーム昇降用油圧シリンダ１２のシ
リンダ本体１４内底面１６に凹状部２０を形成し、同凹
状部２０に油路２１を連通すると共に、同シリンダ本体
１４内で摺動するピストンヘッド２６の下底面２８に、
前記シリンダ本体内底面１６の凹状部２０に周面間隙を
保持して嵌入しうるへき凸状部２９を形成し、また凹状
部２０を介することなく油路２１とシリンダ本体１４内
とを連通ずるバイパス２２を設け、同バイパス２２中途
部に開閉自在のバルブ２３を配設してなるトラクタのリ
フトアーム昇降油圧シリンダ構造。A recessed portion 20 is formed on the inner bottom surface 16 of the cylinder body 14 of the hydraulic cylinder 12 for lifting and lowering the lift arm of the tractor A, and an oil passage 21 is communicated with the recessed portion 20, and a piston head 26 that slides within the cylinder body 14. On the bottom surface 28 of
A convex part 29 is formed in the concave part 20 of the bottom surface 16 of the cylinder body, which can be fitted while maintaining a circumferential gap, and the oil passage 21 and the inside of the cylinder body 14 are communicated without going through the concave part 20. This hydraulic cylinder structure for lifting and lowering a lift arm of a tractor is provided with a bypass 22 and a valve 23 that can be opened and closed is disposed in the middle of the bypass 22.
JP9306483U 1983-06-16 1983-06-16 Hydraulic cylinder structure for raising and lowering the lift arm of a tractor Granted JPS59196705U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9306483U JPS59196705U (en) 1983-06-16 1983-06-16 Hydraulic cylinder structure for raising and lowering the lift arm of a tractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9306483U JPS59196705U (en) 1983-06-16 1983-06-16 Hydraulic cylinder structure for raising and lowering the lift arm of a tractor

Publications (2)

Publication Number Publication Date
JPS59196705U true JPS59196705U (en) 1984-12-27
JPH0438652Y2 JPH0438652Y2 (en) 1992-09-10

Family

ID=30223648

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9306483U Granted JPS59196705U (en) 1983-06-16 1983-06-16 Hydraulic cylinder structure for raising and lowering the lift arm of a tractor

Country Status (1)

Country Link
JP (1) JPS59196705U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5518940U (en) * 1978-07-26 1980-02-06

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5337340A (en) * 1976-09-20 1978-04-06 Toshiba Corp Micro program control system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5518940U (en) * 1978-07-26 1980-02-06

Also Published As

Publication number Publication date
JPH0438652Y2 (en) 1992-09-10

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