Pipe joints or couplings – End to side or plate – Penetrating
Patent
1991-12-12
1993-03-02
Arola, Dave W.
Pipe joints or couplings
End to side or plate
Penetrating
285 39, 285358, F16L 502
Patent
active
051903210
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to an arrangement for mounting a tube or member provided with a flange in a hole formed in a wall, said arrangement comprising a locking element with at least three peripherally spaced apart seats or shoulders adapted to cooperate with a corresponding number of abutment members which are fixed to the wall and which each have an oblique surface against which portions of the locking element can be applied so that, when said locking element is turned, both the locking element and the tube flange are urged inwardly against the wall in order to fix said tube flange.
NO 152,282 discloses an arrangement of this type in which the abutment members are portions of a ring fixed to the wall, said portions defining slits which form bayonet catches and which are adapted to receive shoulders in the form of projecting fingers on the turnable locking element. Forming these slits in the ring is, however, both complicated and expensive, which renders the entire arrangement costly to manufacture.
SUMMARY OF THE INVENTION
The present invention aims at obviating the above inconveniences in providing an arrangement which is simple and inexpensive to manufacture and which permits rapid and expedient mounting and dismounting of the tube. According to the invention, this is achieved by means of an arrangement which is characterised in that a cam surface is provided adjacent to each seat or shoulder, and that each abutment member is a pin with a conical portion forming said oblique surface and tapering towards the wall to which said pin is fixed and against which the cam surface is applied until said pin engages the seat.
BRIEF DESCRIPTION OF THE DRAWINGS
In the drawings,
FIG. 1 is an exploded view showing a filter tube in the process of being mounted in the housing of a dust separator by means of the arrangement according to the invention,
FIG. 2 is an enlarged front view of a locking element according to the invention,
FIG. 3 is a partial cross-section of a portion of the locking element and of the filter tuber in mounted position,
FIG. 4 is a front view of a tool used for turning the locking element, and
FIG. 5 is a part sectional side view of the tool in FIG. 4.
DESCRIPTION OF A PREFERRED EMBODIMENT
In FIG. 1, the housing 1 of a dust separator has a vertical front wall 2 with a number of holes 3 each adapted to receive a filter tube 4. For the sake of simplicity, only two holes are shown in FIG. 1, but in actual practice, the number of holes is usually much larger, e.g. eight, sixteen, etc. Advantageously, the filter tube 4 is of the type described in, for instance, PCT/SE83/OO428, which has an annular flange 6, e.g. of sheet metal, adjacent to an opening 5 in one end of said tube. To provide satisfactory sealing between the flange 6 and the front wall 2, a sealing ring 7 of elastic material, e.g. rubber, is passed onto the filter tube to be located between the flange and the front wall when the filter tube is introduced in its entirety into the housing.
A locking element in the form of a ring 8 adapted to lock the filter tube 4 cooperates with at least three abutment members 9 on the front wall 2. The locking ring 8, which advantageously is made by punching of a metal plate, has a number of peripherally spaced apart seats 10, in this case three seats, the distance between said seats corresponding to the distance between the abutment members 9. As is best shown in FIG. 3, the abutment member 9 is a pin whose one end is fixed to the front wall 2 and whose opposite end has a head 11, a conical portion 12 being arranged adjacent to said head and converging towards the wall 2. The seats 10 of the locking ring 8 (see FIG. 2) may advantageously consist of V-shaped cuts in the periphery of the disc-shaped ring. The periphery of said ring is mainly circular, but a cam surface 13, e.g. in the form of a straight portion, as opposed to the remaining circular periphery, is provided before the seat 10. Furthermore, a recess 14, which in this case is rectangular, is provided in th
REFERENCES:
patent: 176241 (1876-04-01), Price
patent: 1533875 (1925-04-01), McCleary
patent: 1927163 (1933-09-01), Fisher
patent: 2052394 (1936-08-01), Fullman
patent: 4036512 (1977-07-01), Francis
Airchitect I Soderhamn AB
Arola Dave W.
LandOfFree
Arrangement for mounting a tube or member provided with a flange does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Arrangement for mounting a tube or member provided with a flange, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arrangement for mounting a tube or member provided with a flange will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-122797