IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0701805
(1985-02-19)
|
우선권정보 |
DE-0000210 (1982-01-07) |
발명자
/ 주소 |
|
대리인 / 주소 |
Schwartz, Jeffery, Schwaab, Mack, Blumenthal & Evans
|
인용정보 |
피인용 횟수 :
8 인용 특허 :
4 |
초록
▼
Ventilating unit comprising a housing to the front of which is fitted, preferably pivotably, a cover-flap. The front of the housing comprises a wall that closes off the interior in which a fan is arranged. Known ventilating units of this kind contain, inside, a plurality of components, more particul
Ventilating unit comprising a housing to the front of which is fitted, preferably pivotably, a cover-flap. The front of the housing comprises a wall that closes off the interior in which a fan is arranged. Known ventilating units of this kind contain, inside, a plurality of components, more particularly a fan, insulating material, an actuator, etc. These components have hitherto been secured to the housing, and to each other, by means of screws or other attachment-elements, resulting in relatively high material and assembly costs. Furthermore, cleaning of the ventilating ducts, involving opening-up the unit, has been possible only by using trained personnel. In order to overcome this problem it is therefore suggested that the wall be built as an inspection-flap which is hinged to the front edge of the housing and is provided with means for locking it to the housing. In this connection the fan housing is designed, or bears against the said inspection-flap, in such a manner that when the latter is locked, the fan-housing is also locked in the housing. Finally, at least one retaining wall is preferably provided inside and this, together with the inspection-flap, produces a ventilating unit with adequate stability.
대표청구항
▼
1. A ventilating unit comprising: a housing having walls forming a substantially U-shaped cross-section with an open face and defining an interior space having a longitudinal axis; an inspection-flap pivotably mounted on a longitudinal edge of said housing and extending substantially over the en
1. A ventilating unit comprising: a housing having walls forming a substantially U-shaped cross-section with an open face and defining an interior space having a longitudinal axis; an inspection-flap pivotably mounted on a longitudinal edge of said housing and extending substantially over the entire length of said housing for closing the open face of said housing, said inspection-flap being provided with an airway opening and with an actuating element opening therethrough; locking means for securing said pivotably mounted inspection-flap to said housing in a position to close the open face of said housing; a cover-flap pivotably mounted on a longitudinal edge of said inspection-flap for selectively covering and uncovering said inspection-flap and airway opening; an actuating element extending through said actuating element opening in said inspection-flap and operatively connected with said cover-flap to selectively pivot said cover-flap; at least one transverse retaining wall arranged in the interior of said housing; and a fan-housing disposed in said interior space and containing a fan for moving air through said airway opening, said fan-housing being slidable through the open face of said housing when said inspection-flap is opened; said fan-housing being provided on its exterior with four resilient support elements which engage corners of the ventilating unit housing and the inspection-flap when said inspection-flap is closed such that said fan-housing is firmly supported in the interior space of said housing by said resilient support elements when said inspection-flap is closed whereby rotation of said fan-housing around said longitudinal axis is prevented and secured in said interior space when said locking means are secured. 2. A ventilating unit according to claim 1, characterized in that the front longitudinal edge of the inspection-flap comprises a partly cylindrical surface embraced by a jaw on the cover-flap. 3. A ventilating unit according to claim 1, characterized in that the cover-flap is adapted to be hinged selectively to one of the lower longitudinal edge and the upper longitudinal edge of the inspection-flap. 4. A ventilating unit according to claim 1, characterized in that insulating material mounted on opposed walls of the housing is provided with spaced apart toothed webs which project into overlapping position in order to form a meander-pattern air-flow duct, said webs running at right angles to the longitudinal axis of and extending over the entire width of the housing. 5. A ventilating unit according to claim 4, characterized in that at least one flow-duct, runs in the direction of the longitudinal axis of the housing, and in that the fan is arranged at the opening of an air-passage from which air emerges through the ventilating unit. 6. A ventilating unit according to claim 1, characterized in that the outer surface of the fan-housing comprises a plurality of outwardly opening longitudinal channels, supporting-elements being arranged in said longitudinal channels, and said supporting elements bearing upon inner surfaces of the housing and the inspection-flap and against the insulating material located thereon. 7. A ventilating unit according to claim 6, characterized in that the supporting elements are made of a flexible, resilient material and extend over the entire length of the fan-housing. 8. A ventilating unit according to claim 6, characterized in that two longitudinal channels are arranged in end areas of the fan-housing constituting a fan outlet duct, and in that the supporting elements in these two longitudinal channels bear at least partly against the inspection-flap. 9. A ventilating unit according to claim 6, characterized in that a retaining wall is provided at each end of the housing in the interior thereof, each said retaining wall being secured by attachment elements in the longitudinal channels of the fan-housing, said longitudinal channels comprising undercut areas in which attachment elements for the retaining walls engage, said attachment elements being selected from screws and T-shaped extensions of said retaining walls. 10. A ventilating unit according to claim 6, characterized in that a retaining wall is provided at each end of the fan-housing in the interior thereof, each said retaining wall being secured by attachment elements in the longitudinal channels of the housing, and each retaining wall comprising at least one hole arranged at right angles to the rear wall of the housing, into which an attachment means may be introduced. 11. A ventilating unit according to claim 10, characterized in that the retaining wall comprises, at least in the interior, openings, and in that a connecting web, having an opening, is provided in the vicinity of the inspection-flap, through which opening the attachment means and a tool therefor may be passed, the diameter of said opening being larger than that of said whole associated therewith into which the attachment means may be introduced. 12. A ventilating unit according to claim 1, characterized in that the inspection-flap stop on the housing is in the form of a labyrinth-seal. 13. A ventilating unit according to claim 1, characterized in that the cover-flap stop on the inspection-flap is in the form of a labyrinth-seal. 14. A ventilating unit according to claim 1, characterized in that a longitudinal channel is provided in the vicinity of the front edge of the housing to receive electrical leads for the fan-motor and for the actuator. 15. A ventilating unit according to claim 14, characterized in that said longitudinal channel also serves to accommodate attachment-elements for the retaining wall. 16. A ventilating unit according to claim 1, characterized in that said locking means is mounted on said inspection-flap and comprises a member which engages a portion of said housing when said inspection-flap is secured in the closed position. 17. A ventilating unit according to claim 1, characterized in that the pivotable mounting between said inspection-flap and said housing is designed with a longitudinal groove in a front edge of said housing such that after the inspection-flap has been pivoted away from the housing through a predetermined angle, the inspection-flap may be removed from the housing by simply lifting it out of the groove. 18. A ventilating unit according to claim 17, characterized in that the locking means comprises a rotatable bolt with a rotating lever adapted to be brought into engagement with a portion of the housing. 19. A ventilating unit according to claim 17, characterized in that the front edge of said housing and a mating projection on the inspection-flap are arranged at an angle of less than about 45° in relation to the rear wall of the housing. 20. A ventilating unit according to claim 19, characterized in that the front edge of said housing and the mating projection on said inspection-flap are arranged at an angle of less than about 20° in relation to the rear wall of the housing.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.