JPS55102206A - Solenoid - Google Patents

Solenoid

Info

Publication number
JPS55102206A
JPS55102206A JP919779A JP919779A JPS55102206A JP S55102206 A JPS55102206 A JP S55102206A JP 919779 A JP919779 A JP 919779A JP 919779 A JP919779 A JP 919779A JP S55102206 A JPS55102206 A JP S55102206A
Authority
JP
Japan
Prior art keywords
plunger
guide
attraction
bottom plate
magnetic material
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.)
Pending
Application number
JP919779A
Other languages
Japanese (ja)
Inventor
Arata Okamoto
Hiroshi Ohashi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP919779A priority Critical patent/JPS55102206A/en
Publication of JPS55102206A publication Critical patent/JPS55102206A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electromagnets (AREA)

Abstract

PURPOSE: To obtain a solenoid wherein the moving speed of the plunger is not accelerated beyond what is necessary in the process of attracting operation.
CONSTITUTION: The cylindrical plunger guide 30 made of non-magnetic material pierces through the upper plate 21, thick plates 25, 26 and bottom plate 22, and is fixed. The iron plunger 31 is slidably put into the guide 30, the exciting coil 32 is provided around the guide 30. The cover 33 made of non-magnetic material is attached to the lower face of the bottom plate 22 to close the lower side opening of the guide 30. When the volume of the chamber 34 varies with the movement of plunger 31, air flows through the gap between the plunger and the guide. In the initial stage of attraction, the magnetic attraction is considerably greater than the drag that acts on the plunger, so that the plunger is suddenly accelerated, and when it approaches to the terminal position, the drag exceeds the attraction, so that the plunger is decelerated and stopped when it comes in contact with the stopper 67. In this way, the acceleration beyond what is necessary can be prevented in the process of attracting operation.
COPYRIGHT: (C)1980,JPO&Japio
JP919779A 1979-01-31 1979-01-31 Solenoid Pending JPS55102206A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP919779A JPS55102206A (en) 1979-01-31 1979-01-31 Solenoid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP919779A JPS55102206A (en) 1979-01-31 1979-01-31 Solenoid

Publications (1)

Publication Number Publication Date
JPS55102206A true JPS55102206A (en) 1980-08-05

Family

ID=11713773

Family Applications (1)

Application Number Title Priority Date Filing Date
JP919779A Pending JPS55102206A (en) 1979-01-31 1979-01-31 Solenoid

Country Status (1)

Country Link
JP (1) JPS55102206A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5869380U (en) * 1981-11-04 1983-05-11 株式会社リコー floppy disk drive device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5869380U (en) * 1981-11-04 1983-05-11 株式会社リコー floppy disk drive device
JPS6317072Y2 (en) * 1981-11-04 1988-05-16

Similar Documents

Publication Publication Date Title
JPS5681232A (en) Valve driving mechanism and its control for injector
ES444081A1 (en) Miniature solenoid valve
JPS5578505A (en) Attraction type magnetic device
EP0380693A4 (en) Plunger type electromagnet
JPS5293322A (en) Electromagnetic shutter
JPS5743068A (en) Temperature sensing valve
JPS55102206A (en) Solenoid
JPS55143410A (en) Toner detector
JPS56125984A (en) Magnetically floating movable base
JPS5646175A (en) Proportional control valve
JPS5655773A (en) Electromagnetic valve
JPS5720414A (en) Electromagnetic device
JPS55128803A (en) Self-sustained electromagnetic device
JPS57208333A (en) Delay device utilizing liquid sealed by magnetic fluid
JPS5663171A (en) Solenoid valve
JPS56109969A (en) Electromagnetically operated change-over valve
JPS558042A (en) Plunger type electromagnet
JPS55146911A (en) Time-limit solenoid
JPS5652670A (en) Electromagnetic valve
JPS5747079A (en) Solenoid valve with constant rate pressure reducing valve
JPS54108161A (en) Magnetic fluid seal
JPS5670613A (en) Electromagnetic output device
JPS5628357A (en) Valve
JPS5761873A (en) Valve with the aid of magnetic operating element
JPS5623716A (en) Electromagnetic device utilizing attracting and repelling forces in combination of permanent magnet and electromagnet