JPS56124544A - Vacuum servo type brake - Google Patents

Vacuum servo type brake

Info

Publication number
JPS56124544A
JPS56124544A JP2631280A JP2631280A JPS56124544A JP S56124544 A JPS56124544 A JP S56124544A JP 2631280 A JP2631280 A JP 2631280A JP 2631280 A JP2631280 A JP 2631280A JP S56124544 A JPS56124544 A JP S56124544A
Authority
JP
Japan
Prior art keywords
valve
braking
brake pedal
valve body
vacuum
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
JP2631280A
Other languages
Japanese (ja)
Other versions
JPS6154621B2 (en
Inventor
Tadayuki Kuroki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP2631280A priority Critical patent/JPS56124544A/en
Publication of JPS56124544A publication Critical patent/JPS56124544A/en
Publication of JPS6154621B2 publication Critical patent/JPS6154621B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Braking Systems And Boosters (AREA)

Abstract

PURPOSE: To hold a braking force during the predetermined time even after a brake pedal is released by a method wherein a projected swaying member made of an elastic body, with which the gap between a valve seat and a valve body is closed due to the pressure difference around the gap, is provided at either the valve seat or the valve body, both of which consist of the vacuum valve of the vacuum servo device.
CONSTITUTION: When the brake pedal is operated, the braking operation is performed in the same manner as in an usual vacuum servo device: that is, a rod 36 is moved leftwards, the vacuum valve is closed, an air valve is opened, the atmospheric pressure is introduced to the changing pressure chamber of a braking device and the power piston is actuated to apply braking. When the brake pedal is released to take off braking, a valve plunger 37 is moved rightwards to close the air valve 40. When the plunger 37 is moved further rightwards, the tip of the projected swaying member 32 of the valve seat 31 is swayed outwards keeping in contact with the valve body 30 due to the condition that the inside of the changing pressure chamber 28 is kept at the atmospheric pressure while the inside of the negative pressure chamber 27 and the side of a port 46 are kept at the negative pressure and the delayed parting of the member 32 from the valve body 30 behind the time of operation of the brake pedal is resulted.
COPYRIGHT: (C)1981,JPO&Japio
JP2631280A 1980-03-03 1980-03-03 Vacuum servo type brake Granted JPS56124544A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2631280A JPS56124544A (en) 1980-03-03 1980-03-03 Vacuum servo type brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2631280A JPS56124544A (en) 1980-03-03 1980-03-03 Vacuum servo type brake

Publications (2)

Publication Number Publication Date
JPS56124544A true JPS56124544A (en) 1981-09-30
JPS6154621B2 JPS6154621B2 (en) 1986-11-22

Family

ID=12189852

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2631280A Granted JPS56124544A (en) 1980-03-03 1980-03-03 Vacuum servo type brake

Country Status (1)

Country Link
JP (1) JPS56124544A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61150264U (en) * 1985-03-12 1986-09-17

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61150264U (en) * 1985-03-12 1986-09-17
JPH0357565Y2 (en) * 1985-03-12 1991-12-27

Also Published As

Publication number Publication date
JPS6154621B2 (en) 1986-11-22

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