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US 2015/0086375 A1Published application
Ceiling fan
AssigneePanasonic Corporation
InventorsHiroyuki Kuramochi, Hironari Ogata, Daiki Sakito
Life of this patent
Estimating the term…
Abstract
A ceiling fan includes blade (11) that is integrally formed of root (12), vane (13), and step (14) for maintaining vane (13) in a state inclined from horizontal. Blade (11) includes bend (16), first reinforcement (17) on upstream side (11c), and a plurality of second reinforcements (18) between bend (16) and first reinforcement (17). First reinforcement length (17a) is longer than second reinforcement length (18a). Further, the ceiling fan includes blade drop prevention portion (37) for locking blade (11) to support (10).
Claims17
A ceiling fan comprising:
- a junction to be engaged with a ceiling;
- a motor provided in a lower part of the junction;
- a support configured to rotate in a circumference of the motor;
- and
- a plurality of blades detachably fixed to the support,
- wherein each of the blades is integrally formed of:
- a root fixed to the support;
- a vane configured to blow air by rotation of a rotor that constitutes the motor;
- and
- a step provided between the root and a tip of the vane, the step maintaining the vane in a state inclined from horizontal,
- each of the blades includes:
- a bend on an upstream side in a rotational direction of each of the blades, the bend being bent downward;
- a first reinforcement on the upstream side in the rotational direction of each of the blades, the first reinforcement extending from the root partway to the tip;
- and
- a plurality of second reinforcements between the bend and the first reinforcement, the second reinforcements extending from the root partway to the tip, and
- wherein a first reinforcement length of the first reinforcement is longer than a second reinforcement length of each of the second reinforcements.
13 more elements
A ceiling fan comprising:
- a junction to be engaged with a ceiling;
- a motor provided in a lower part of the junction;
- a support configured to rotate in a circumference of the motor;
- a plurality of fixing portions provided in the support;
- a plurality of blades detachably fixed to the fixing portions;
- and
- a blade drop prevention portion configured to lock each of the blades to the support,
- wherein each of the blades is integrally formed of:
- a root fixed to the support;
- a vane configured to blow air by rotation of a rotor that constitutes the motor;
- and
- a step provided between the root and a tip of the vane, the step maintaining the vane in a state inclined from horizontal,
- wherein the root has a locking hole and a plurality of fixing holes,
- the blade drop prevention portion includes a locking portion extending from the support, and the locking hole locked by the locking portion, and
- each of the blades is fixed to the support with a connecting member fixed to each of the fixing portions through each of the fixing holes, and by inserting the locking portion into the locking hole.
12 more elements
Dependencies are inferred from the claim text.