Air blowing device
AssigneeSft Laboratory Co., Ltd.
InventorHiroshi Ichigaya
Life of this patent
Estimating the term…
Abstract
An air circulator which is attached to a sheet member and which is for generating an air flow from one side of the sheet member to another side of the sheet member includes a fan main body and a ring member for attaching the fan main body to the sheet member. The fan main body includes a hollow cylinder unit, a flange formed on the cylinder unit, a motor fixing unit, a motor fixated to the motor fixing unit, a wing attached to a rotating shaft of the motor and first engaging units formed on outer surfaces of first parts of the cylinder unit, the first parts forming a pair and facing each other. The ring member includes second engaging units which are formed on inner surfaces of second parts that form a pair, the second parts facing each other, and which engage with the first engaging units.
Claims16
An air circulator which is attached to a sheet member and which is for generating an air flow from one side of the sheet member to another side of the sheet member, comprising:
- a fan main body;
- and
- a ring member for attaching the fan main body to the sheet member,
- wherein:
- the fan main body comprises:
- a hollow cylinder unit;
- a flange which is formed on the hollow cylinder unit so as to protrude from an outer surface of the hollow cylinder unit in a direction approximately orthogonal to the outer surface of the hollow cylinder unit;
- a motor fixing unit for fixating a motor;
- a wing which is attached to a rotating shaft of the motor;
- and
- first engaging units which are formed on outer surfaces of first parts of the hollow cylinder unit, the first parts forming a pair and facing each other,
- the ring member comprises second engaging units which are formed on inner surfaces of second parts of the ring member, the second parts forming a pair and facing each other, and the second engaging units engaging with the first engaging units,
- a width between two points on an inner surface of the ring member at the second parts is equal to a width between two points on the outer surface of the hollow cylinder unit at the first parts or is smaller than the width between the two points on the outer surface of the hollow cylinder unit at the first parts,
- a width between two points on the inner surface of the ring member at a pair of pressing parts, the pressing parts being two parts which are shifted from the second parts by approximately 90 degrees, is larger than a width between two points on the outer surface of the hollow cylinder unit at two parts which are shifted from the first parts by approximately 90 degrees,
- an inner circumference of the ring member is larger than an outer circumference of the hollow cylinder unit,
- the ring member is flexible,
- the fan main body is attachable to the sheet member by fitting the ring member around the outer surface of the hollow cylinder unit utilizing the flexibility of the ring member so as to make an edge part of the sheet member around an opening formed in the sheet member be held between a back surface of the flange of the fan main body and one end surface of the ring member and to make the first engaging units and the second engaging units engage with each other, and
- the fan main body is detachable from the sheet member by squeezing the pair of pressing parts of the ring member so as to make the ring member bend, thereby releasing the engaging of the first engaging units and the second engaging units.
An air circulator which is attached to a sheet member and which is for generating an air flow from one side of the sheet member to another side of the sheet member, comprising:
- a fan main body;
- and
- a ring member for attaching the fan main body to the sheet member,
- wherein:
- the fan main body comprises:
- a hollow cylinder unit;
- a flange which is formed on the hollow cylinder unit so as to protrude from an outer surface of the hollow cylinder unit in a direction approximately orthogonal to the outer surface of the hollow cylinder unit;
- a motor fixing unit for fixating a motor;
- a wing which is attached to a rotating shaft of the motor;
- and
- first engaging units which are formed on outer surfaces of first parts of the hollow cylinder unit, the first parts forming a pair and the first parts facing each other,
- the ring member comprises second engaging units which are formed on inner surfaces of second parts of the ring member, the second parts forming a pair and facing each other, and the second engaging units engaging with the first engaging units,
- a width between two points on an inner surface of the ring member at the second parts is equal to a width between two points on the outer surface of the hollow cylinder unit at the first parts or is smaller than the width between the two points on the outer surface of the hollow cylinder unit at the first parts,
- a width between two points on the inner surface of the ring member at a pair of pressing parts, the pressing parts being two parts which are shifted from the second parts by approximately 90 degrees, is larger than a width between two points on the outer surface of the hollow cylinder unit at two parts which are shifted from the first parts by approximately 90 degrees,
- an inner circumference of the ring member is larger than an outer circumference of the hollow cylinder unit,
- the ring member is flexible,
- outer edge parts of the ring member and a side that faces the flange of the fan main body at the pair of pressing parts are chamfered,
- the fan main body is attachable to the sheet member by fitting the ring member around the outer surface of the hollow cylinder unit utilizing the flexibility of the ring member so as to make an edge part of the sheet member around an opening formed in the sheet member be held between a back surface of the flange of the fan main body and one end surface of the ring member and to make the first engaging units and the second engaging units engage with each other, and
- the fan main body is detachable from the sheet member by squeezing the pair of pressing parts of the ring member so as to make the ring member bend, thereby releasing the engaging of the first engaging units and the second engaging units.
Dependencies are inferred from the claim text.