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`(11) Unexamined Japanese Utility Model Publication No. 855123694
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`(21) Japanese Utility Model Application No. 854-23080
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`(22) Date of Filing: February 23, 1979
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`(43) Date of Publication of Application: September 2, 1980
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`(72) Deviser(s)3 Eiichi Sugimoto
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`(54) Title of the Devicei Blower Vane Mounting Device
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`(57) What is claimed isl
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`A blower vane mounting device configured in that there are provided
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`a fan base and a blower vane having a plurality of vane pieces radially
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`protruded at an outer periphery thereof, a boss portion protruded at the fan
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`base, having a fitting grove with a predetermined depth, at least one pair of
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`elastic pieces with pawls protruded at the fan base in an opposing fashion
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`axially of the boss portion, and a driving shaft provided with a pin protruded
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`from the outer periphery for rotating force transfer and inserted into the boss
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`portion so that the pin passes between the pawls of the elastic pieces while
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`engaging the fitting grove of the boss portion, wherein the depth of the fitting
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`groove is dimensionally set nearly same as the diameter of the pin, and also,
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`the space between the pair of opposing elastic pieces is set larger than the
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`diameter of the pin, and further, the space between the opposing pawls of the
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`pair of elastic pieces is set smaller than the diameter of the pin.
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`Brief description of the drawings:
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`
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`The drawing shows one exemplary embodiment of the present device.
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`Fig. 1 is a longitudinal sectional View of an essential portion. Fig. is an
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`enlarged sectional view of an essential portion along the II — II line in Fig. 1.
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`Fig. 3 is an enlarged sectional View of an essential portion showing the
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`dimensional relationship.
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`In the drawings, reference numeral 1 is blower vane, numeral 2 is
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`fan base, numeral 3 is vane piece, numeral 4 is boss portion, numeral 5 is
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`fitting groove, numeral 6 is elastic piece, numeral 6a is pawl, numeral 7 is
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`rotary shaft (driving shaft), and numeral 8 is pin.
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