JPS5741499A - Fixing of externally operated fan - Google Patents

Fixing of externally operated fan

Info

Publication number
JPS5741499A
JPS5741499A JP55116818A JP11681880A JPS5741499A JP S5741499 A JPS5741499 A JP S5741499A JP 55116818 A JP55116818 A JP 55116818A JP 11681880 A JP11681880 A JP 11681880A JP S5741499 A JPS5741499 A JP S5741499A
Authority
JP
Japan
Prior art keywords
axis
fan
diameter
fan boss
width
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
JP55116818A
Other languages
Japanese (ja)
Other versions
JPS612799B2 (en
Inventor
Yoshihiro Suzuki
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 JP55116818A priority Critical patent/JPS5741499A/en
Publication of JPS5741499A publication Critical patent/JPS5741499A/en
Publication of JPS612799B2 publication Critical patent/JPS612799B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

PURPOSE: To facilitate removal of an externally operated fan by making an axial diameter near a hole which is drilled by means of a self tapping screw accompanied by elastic deformation, smaller than an axial diameter of other portion.
CONSTITUTION: An annular groove 3c is formed by plastic working to make an axal diameter D3 of the area near a drilled hole 3a smaller than a diameter D2 of a portion where a fan boss 2 is fitted around an axis 3. Also, a width l of the axis 3, where this groove 3c is formed, should be set so that the width L, which represents the shaft length excluding the width of the fan 1 itself and the fan boss 2 fitting around the axis 3, and the outer diameter d of the self tapping screw 4 are relatively arranged to satisfy the relation d<l<L. A convex portion 3d is formed around the drilled hole 3a of the axis 3 when the fan boss 2 is fitted around the axis 3 and the self tapping screw 4 is screw up, but, the outer diamete of the convex portion 3d on groove 3c can stay smaller than the axial diameter D2 of a portion where the fan boss 2 is fitted around the axis, consequently the fan 1 itself and the fan boss 2 can be removed.
COPYRIGHT: (C)1982,JPO&Japio
JP55116818A 1980-08-25 1980-08-25 Fixing of externally operated fan Granted JPS5741499A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55116818A JPS5741499A (en) 1980-08-25 1980-08-25 Fixing of externally operated fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55116818A JPS5741499A (en) 1980-08-25 1980-08-25 Fixing of externally operated fan

Publications (2)

Publication Number Publication Date
JPS5741499A true JPS5741499A (en) 1982-03-08
JPS612799B2 JPS612799B2 (en) 1986-01-28

Family

ID=14696389

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55116818A Granted JPS5741499A (en) 1980-08-25 1980-08-25 Fixing of externally operated fan

Country Status (1)

Country Link
JP (1) JPS5741499A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS532474U (en) * 1976-06-24 1978-01-11
JPS5324746U (en) * 1976-08-06 1978-03-02
JPS5465005U (en) * 1977-10-18 1979-05-09
JPS54153402U (en) * 1978-04-19 1979-10-25

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5324746B2 (en) * 1974-02-23 1978-07-22
JPS532474B2 (en) * 1974-04-15 1978-01-28

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS532474U (en) * 1976-06-24 1978-01-11
JPS5324746U (en) * 1976-08-06 1978-03-02
JPS5465005U (en) * 1977-10-18 1979-05-09
JPS54153402U (en) * 1978-04-19 1979-10-25

Also Published As

Publication number Publication date
JPS612799B2 (en) 1986-01-28

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