JPS55139537A - Damper - Google Patents

Damper

Info

Publication number
JPS55139537A
JPS55139537A JP4464979A JP4464979A JPS55139537A JP S55139537 A JPS55139537 A JP S55139537A JP 4464979 A JP4464979 A JP 4464979A JP 4464979 A JP4464979 A JP 4464979A JP S55139537 A JPS55139537 A JP S55139537A
Authority
JP
Japan
Prior art keywords
wire
damper
pulley
plate
tension
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
JP4464979A
Other languages
Japanese (ja)
Other versions
JPS6225892B2 (en
Inventor
Seiji Sagara
Hiroyuki Miyake
Hiroshi Ogawa
Osamu Hoshino
Kazumi Umezawa
Kenji Takeda
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP4464979A priority Critical patent/JPS55139537A/en
Publication of JPS55139537A publication Critical patent/JPS55139537A/en
Publication of JPS6225892B2 publication Critical patent/JPS6225892B2/ja
Granted 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
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/522—Projection optics
    • G03B27/525—Projection optics for slit exposure

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission Devices (AREA)
  • Vibration Dampers (AREA)

Abstract

PURPOSE:To save the installation space for a damper and to increase the degree of freedom for designing, by providing a shock-absorbing swing member at an intersecting or opposite portions of wire in a damper capable of causing reciprocal movement of a movable body by means of wire without applying impact forces to the movable body. CONSTITUTION:When winding pulley 24 is turned in the direction of arrow shown in the drawing, the first support member 11 is moved along guide shafts 14-16 in the direction of arrows by means of wire 25. Providing here that the damper is applied in a duplicator, a portion 25a of wire 25 is acted by tension whereas other portion 25b is kept slack at the instant when exposing procedure is started. Therefore, if wire 25 after passing idler pulley 28 is extended in intersecting manner as shown in the drawing by the intermidiary of tension pulley 29 supported on a swing plate (or pivotally movable plate) 31, tension pulley 29 is moved in the direction a and slackness at the portion 25b of wire 25 is absorbed resultantly. On the other hand, at the time of reversing the motion of damper after completion of exposure by an optical mirror, plate 31 is turned in clockwise direction, so that wire can be protected from initial shock.
JP4464979A 1979-04-12 1979-04-12 Damper Granted JPS55139537A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4464979A JPS55139537A (en) 1979-04-12 1979-04-12 Damper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4464979A JPS55139537A (en) 1979-04-12 1979-04-12 Damper

Publications (2)

Publication Number Publication Date
JPS55139537A true JPS55139537A (en) 1980-10-31
JPS6225892B2 JPS6225892B2 (en) 1987-06-05

Family

ID=12697282

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4464979A Granted JPS55139537A (en) 1979-04-12 1979-04-12 Damper

Country Status (1)

Country Link
JP (1) JPS55139537A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010235244A (en) * 2009-03-31 2010-10-21 Mitsui Eng & Shipbuild Co Ltd Container crane structure protection mechanism
JP2020033150A (en) * 2018-08-30 2020-03-05 株式会社三井Ｅ＆Ｓマシナリー Container crane

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010235244A (en) * 2009-03-31 2010-10-21 Mitsui Eng & Shipbuild Co Ltd Container crane structure protection mechanism
JP2020033150A (en) * 2018-08-30 2020-03-05 株式会社三井Ｅ＆Ｓマシナリー Container crane

Also Published As

Publication number Publication date
JPS6225892B2 (en) 1987-06-05

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