JPS5629139A - Test method of watertightness for hoisting unit - Google Patents

Test method of watertightness for hoisting unit

Info

Publication number
JPS5629139A
JPS5629139A JP10621279A JP10621279A JPS5629139A JP S5629139 A JPS5629139 A JP S5629139A JP 10621279 A JP10621279 A JP 10621279A JP 10621279 A JP10621279 A JP 10621279A JP S5629139 A JPS5629139 A JP S5629139A
Authority
JP
Japan
Prior art keywords
support
support frame
coupling
watertightness
air
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
JP10621279A
Other languages
Japanese (ja)
Other versions
JPS639175B2 (en
Inventor
Yoshiyuki Wakiyama
Yoshito Tsurumaru
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP10621279A priority Critical patent/JPS5629139A/en
Publication of JPS5629139A publication Critical patent/JPS5629139A/en
Publication of JPS639175B2 publication Critical patent/JPS639175B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Examining Or Testing Airtightness (AREA)

Abstract

PURPOSE: To simplify the test job and to reduce the time, by pressing the gas with required pressure from the through-hole provided at the support frame to measure the watertightness for the coupling and joints of the respective support frames.
CONSTITUTION: The support frame 4 enclosing and supporting the support 1, drive source 2, control unit 12, variable speed gear 36, and limit switch unit 70, is only coupled airtightly with O ring, and the winding drum 55 is borne with the support 1 and the support frame 34 of the variable speed gear coupled airtightly with it, via the bearings 88, 89 having air ducts 88a, 89a, and the assembly is immersed in liquid. Next, the air under about 0.5 atm. is put in the body via the hose 87, air supply tube 36, through-female screws 32a, 30a from the air compressor to inspect the coupling section of coupling members, bonding section of the drum 55 and a pair of O rings 35, 59, and glands 7, 25, 73 for airtightness, through visual observation of bubble production. Thus, the test job can easily be made and the time can be decreased.
COPYRIGHT: (C)1981,JPO&Japio
JP10621279A 1979-08-20 1979-08-20 Test method of watertightness for hoisting unit Granted JPS5629139A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10621279A JPS5629139A (en) 1979-08-20 1979-08-20 Test method of watertightness for hoisting unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10621279A JPS5629139A (en) 1979-08-20 1979-08-20 Test method of watertightness for hoisting unit

Publications (2)

Publication Number Publication Date
JPS5629139A true JPS5629139A (en) 1981-03-23
JPS639175B2 JPS639175B2 (en) 1988-02-26

Family

ID=14427838

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10621279A Granted JPS5629139A (en) 1979-08-20 1979-08-20 Test method of watertightness for hoisting unit

Country Status (1)

Country Link
JP (1) JPS5629139A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61112849A (en) * 1984-11-08 1986-05-30 Diesel Kiki Co Ltd Vehicle control device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115697087A (en) 2020-06-22 2023-02-03 株式会社日本药业 Testosterone secretion promoter

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS503856U (en) * 1973-05-09 1975-01-16
JPS5315879A (en) * 1976-07-28 1978-02-14 Hitachi Metals Ltd Atmospheric pressure tester

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS503856U (en) * 1973-05-09 1975-01-16
JPS5315879A (en) * 1976-07-28 1978-02-14 Hitachi Metals Ltd Atmospheric pressure tester

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61112849A (en) * 1984-11-08 1986-05-30 Diesel Kiki Co Ltd Vehicle control device
JPH0369021B2 (en) * 1984-11-08 1991-10-30 Zekuseru Kk

Also Published As

Publication number Publication date
JPS639175B2 (en) 1988-02-26

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