Fan device contained in a ventilated vehicle chair
AssigneeWalinov AB
InventorKnut Olof Lennart Wallman
Life of this patent
Estimating the term…
Abstract
A fan device which is built into a vehicle chair, and is arranged to ventilate away air that is drawn through the covering and filling of the vehicle chair, which has an electrically driven fan (9) of radial type attached at the bottom of the chair. The fan wheel (17) extends from the driving cover (14) of the motor (13), which extends up into the inlet (30) of the fan. The fan (9) is attached to a carrying means (39) in the chair which is located on the underside of the filling (40) and has passages (65) for the ventilating air adjacent to the fan inlet.
Claims25
A fan device for use in a ventilated chair and arranged to ventilate away air that is drawn inwards through portions of a covering and a shaping filling of the chair, the fan device comprising:
- a fan configured to be arranged at a bottom of the chair and having an electric motor, wherein the fan is of a radial type and has a fan wheel operatively coupled to an exterior driving part of the motor;
- wherein the motor extends axially upwardly into the fan and, together with an upper part of a fan case, forms an annular inlet opening;
- and
- carrying means for supporting the fan, wherein the fan case is attachable to the carrying means, wherein the carrying means is configured to support the filling, and wherein the carrying means includes passage means for the passage of air into the fan inlet opening.
A fan device for use in a ventilated chair and arranged to ventilate away air that is drawn inwards through portions of a covering and a shaping filling of the chair, the fan device comprising:
- a fan configured to be arranged at a bottom of the chair and having an electric motor, wherein the fan is of a radical type and has a fan wheel operatively coupled to an exterior driving part of the motor;
- wherein the motor extends axially upwardly into the fan and, together with an upper part of a fan case, forms an annular inlet opening;
- and
- carrying means for supporting the fan, wherein the fan case is attachable to the carrying means, wherein the carrying means for the passage of air into the fan inlet opening, wherein a periphery of the upper part of the case is formed with radially projecting ears and a lower part of the case is formed with lugs which are bent upwards and outwards to bear against the ears, and wherein the ears, the lugs, and elastic form attachments which are configured to hang the fan from said carrying means when the fan is mounted on the carrying means.
A fan device according to claim 11, further comprising spacing elements which are configured to be arranged between the ears and said carrying elements when the fan is mounted on the carrying means, and wherein, when the fan is mounted on the carrying means, the elastic sealing ring is compressed to a degree determined by the spacing elements.
A fan device for use in a ventilated chair and arranged to ventilate away air that is drawn inwards through portions of a covering and a shaping filling of the chair, the fan device comprising:
- a fan configured to be arranged at a bottom of the chair and having an electric motor, wherein the fan is of a radial type and has a fan wheel operatively coupled to an exterior driving part of the motor;
- wherein the motor extends axially upwardly into the fan and, together with an upper part of a fan case, forms an annular inlet opening;
- and
- carrying means for supporting the fan, wherein the fan case is attachable to the carrying means, wherein the carrying means is configured to support the filling, and wherein the carrying means includes passage means for the passage of air into the fan inlet opening, wherein an upwardly curved protection device is located in a fan inlet duct formed above the motor, and wherein the protection device extends across an axis of rotation of the fan and is spaced from an upper surface of the motor, and wherein the protection device is constituted by a plate with passage openings for the air.
A ventilated chair comprising:
- (A) a cushion having a shaping filling;
- (B) a fan carrying device located in a vicinity of an underside of said cushion;
- and
- (C) a radial fan including
- (1) a case which has an upper part and which is mounted on said fan carrying device,
- (2) a motor which has an exterior driving part, wherein an upper part of said motor and said upper part of said case form an annular inlet opening of said fan, and
- (3) a fan wheel operatively coupled to said driving part of said motor, wherein
- a passage is formed in said cushion and in said fan carrying device and directs air through the covering and into said inlet opening of said fan.
Dependencies are inferred from the claim text.