JPS56146131A - Pressurizing device - Google Patents

Pressurizing device

Info

Publication number
JPS56146131A
JPS56146131A JP5007880A JP5007880A JPS56146131A JP S56146131 A JPS56146131 A JP S56146131A JP 5007880 A JP5007880 A JP 5007880A JP 5007880 A JP5007880 A JP 5007880A JP S56146131 A JPS56146131 A JP S56146131A
Authority
JP
Japan
Prior art keywords
lever
rate
pressure plate
spring
inverts
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
JP5007880A
Other languages
Japanese (ja)
Other versions
JPS6035053B2 (en
Inventor
Shuntaro Yoshida
Takao Sato
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.)
Riso Kagaku Corp
Original Assignee
Riso Kagaku Corp
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 Riso Kagaku Corp filed Critical Riso Kagaku Corp
Priority to JP5007880A priority Critical patent/JPS6035053B2/en
Publication of JPS56146131A publication Critical patent/JPS56146131A/en
Publication of JPS6035053B2 publication Critical patent/JPS6035053B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/02—Exposure apparatus for contact printing
    • G03B27/14—Details
    • G03B27/18—Maintaining or producing contact pressure between original and light-sensitive material

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To pressurize an object always with fixed pressing force by providing a switching device which detects the rate of deformation of the spring of a spring type supporting device when it reaches a prescribed rate and inverts the driving direction of a reversible power device. CONSTITUTION:An electric pad 5 which is a stationary pressurizing member and a pressure plate 4 which opposes to said pad 5 and pressurizes the object P sandwiched between these cooperatively with this are provided. Also, a lever 10 which engages the pressure plate 4 in the intermediate part, a reversible motor 15 which engages one end of this lever 10 and selectively drives the lever 10 in the pressurizing direction of the pressure plate 4, and a microswitch 28 which detects the rate of deformation of the spring 22 of a spring type supporting device including a spring flexibly supporting the reaction to be given by the pressure plate 4 to the lever 10 at the other end of the lever 10 by means of a sensing lever 25 etc, when said rate attains the prescribed rate and inverts the driving direction of the reversible motor 15 are provided.
JP5007880A 1980-04-15 1980-04-15 Pressure device Expired JPS6035053B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5007880A JPS6035053B2 (en) 1980-04-15 1980-04-15 Pressure device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5007880A JPS6035053B2 (en) 1980-04-15 1980-04-15 Pressure device

Publications (2)

Publication Number Publication Date
JPS56146131A true JPS56146131A (en) 1981-11-13
JPS6035053B2 JPS6035053B2 (en) 1985-08-12

Family

ID=12848966

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5007880A Expired JPS6035053B2 (en) 1980-04-15 1980-04-15 Pressure device

Country Status (1)

Country Link
JP (1) JPS6035053B2 (en)

Also Published As

Publication number Publication date
JPS6035053B2 (en) 1985-08-12

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