Title:
AIR BLOWER
Document Type and Number:
Japanese Patent JP2019190349
Kind Code:
A
Abstract:
To provide an air blower capable of suppressing a deformed portion of a fitting hole from engaging with a rotational shaft.SOLUTION: An air blower (10) comprises: a rotational shaft (20) having an outer peripheral surface (21) including a first arc part (22) and a first plane part (23); and a boss part (40) in which a fitting hole (41) having an inner peripheral surface (42) is formed, the inner peripheral surface including a second arc part (43) corresponding to the first arc part (22), and a second plane part (44) corresponding to the first plane part (23). At end parts (23a, 23b, 44a, 44b) in a width direction of at least one plane part (23, 44) of the first plane part (23) and the second plane part (44), notches (51, 52, 53, 54) are formed.SELECTED DRAWING: Figure 5
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Inventors:
TOMIOKA HIROTAKA
KIRIKURI YUKI
KIRIKURI YUKI
Application Number:
JP2018083014A
Publication Date:
October 31, 2019
Filing Date:
April 24, 2018
Export Citation:
Assignee:
DAIKIN IND LTD
International Classes:
F04D29/32
Domestic Patent References:
| JPH074396A | 1995-01-10 | |||
| JP2007285237A | 2007-11-01 |
Attorney, Agent or Firm:
Maeda patent office