JPS6424665U - - Google Patents

Info

Publication number
JPS6424665U
JPS6424665U JP11888387U JP11888387U JPS6424665U JP S6424665 U JPS6424665 U JP S6424665U JP 11888387 U JP11888387 U JP 11888387U JP 11888387 U JP11888387 U JP 11888387U JP S6424665 U JPS6424665 U JP S6424665U
Authority
JP
Japan
Prior art keywords
pressure
plunger
preload spring
outlet
valve
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
JP11888387U
Other languages
Japanese (ja)
Other versions
JPH0628367Y2 (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 JP1987118883U priority Critical patent/JPH0628367Y2/en
Publication of JPS6424665U publication Critical patent/JPS6424665U/ja
Application granted granted Critical
Publication of JPH0628367Y2 publication Critical patent/JPH0628367Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Hydraulic Control Valves For Brake Systems (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Description

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

第1,2図は、本考案の一実施例を示す図であ
る。 3……液圧制御弁、7……シリンダ装置、9…
…ポンプ、10……アキユムレータ、39……ピ
ストン、40……制御室。
1 and 2 are diagrams showing an embodiment of the present invention. 3...Liquid pressure control valve, 7...Cylinder device, 9...
...pump, 10...accumulator, 39...piston, 40...control room.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 運転手操作のブレーキマスタシリンダからブレ
ーキ装置のホイールシリンダに至る配管系に、マ
スタシリンダ側の入口圧力に比較して所定圧力以
上でホイールシリンダ側の出口圧力を減圧制御す
る液圧制御弁を設け、この液圧制御弁が入口と出
口との間に設けた弁装置と、この弁装置を開閉す
べく移動可能なプランジヤと、このプランジヤを
前記弁装置が開弁する方向に付勢する予負荷ばね
とを有し、前記プランジヤが前記出口側の圧力を
前記予負荷ばねの付勢方向に対向して受圧するよ
うにするとともに、リフト用シリンダ装置からの
圧力を供給して前記予負荷ばねの前記プランジヤ
に対する付勢力を変化させるようにしたフオーク
リフト用ブレーキ液圧制御装置において、リフト
用シリンダ装置の圧力源の圧力の低下に応じて前
記液圧制御弁の調圧作用を無効化する機構を設け
たフオークリフト用ブレーキ液圧制御装置。
A hydraulic control valve is provided in the piping system leading from the brake master cylinder operated by the driver to the wheel cylinder of the brake device, which controls the outlet pressure on the wheel cylinder side to be reduced at a predetermined pressure or more compared to the inlet pressure on the master cylinder side, The hydraulic control valve includes a valve device provided between an inlet and an outlet, a plunger movable to open and close the valve device, and a preload spring that biases the plunger in a direction in which the valve device opens. and the plunger receives the pressure on the outlet side in a direction opposite to the biasing direction of the preload spring, and supplies pressure from a lift cylinder device to the biasing direction of the preload spring. A forklift brake fluid pressure control device that changes the biasing force against the plunger is provided with a mechanism that disables the pressure regulating action of the fluid pressure control valve in response to a decrease in the pressure of the pressure source of the lift cylinder device. Brake fluid pressure control device for forklifts.
JP1987118883U 1987-08-04 1987-08-04 Break hydraulic pressure controller for forklift Expired - Lifetime JPH0628367Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987118883U JPH0628367Y2 (en) 1987-08-04 1987-08-04 Break hydraulic pressure controller for forklift

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987118883U JPH0628367Y2 (en) 1987-08-04 1987-08-04 Break hydraulic pressure controller for forklift

Publications (2)

Publication Number Publication Date
JPS6424665U true JPS6424665U (en) 1989-02-10
JPH0628367Y2 JPH0628367Y2 (en) 1994-08-03

Family

ID=31363622

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987118883U Expired - Lifetime JPH0628367Y2 (en) 1987-08-04 1987-08-04 Break hydraulic pressure controller for forklift

Country Status (1)

Country Link
JP (1) JPH0628367Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03142581A (en) * 1989-10-27 1991-06-18 Matsushita Electric Ind Co Ltd Compact data terminal equipment with image input function

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5367069A (en) * 1976-11-26 1978-06-15 Nippon Air Brake Co Hydraulic control valve for hydraulic braking device
JPS6229395U (en) * 1985-08-02 1987-02-21

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5367069A (en) * 1976-11-26 1978-06-15 Nippon Air Brake Co Hydraulic control valve for hydraulic braking device
JPS6229395U (en) * 1985-08-02 1987-02-21

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03142581A (en) * 1989-10-27 1991-06-18 Matsushita Electric Ind Co Ltd Compact data terminal equipment with image input function

Also Published As

Publication number Publication date
JPH0628367Y2 (en) 1994-08-03

Similar Documents

Publication Publication Date Title
JPS60108581U (en) Hydraulic brake system with servo device for automobiles
GB1437415A (en) Pressure-modulating valve device for a brake system
GB1207383A (en) Hydraulic safety and parking braking device for a vehicle
JPS61150262U (en)
JPS6424665U (en)
JPS6424664U (en)
JPH04131566U (en) hydraulic brake system
JPH0537891Y2 (en)
US2476089A (en) Hydraulic booster system for brakes
JPH037256Y2 (en)
JPS6229395U (en)
GB1026234A (en) Fluid pressure power braking system
JPH0434162U (en)
JPH037257Y2 (en)
JPH0217473U (en)
JPS5855022B2 (en) fluid brake booster
JPS62157670U (en)
JPH0438873U (en)
JPH0434163U (en)
JPS61101065U (en)
JPS6249476U (en)
JPH0612239U (en) Brake fluid pressure control device
JPS62157671U (en)
JPS61115771U (en)
JPH0442465U (en)