Mounting arrangement for mounting a device, and methods for mounting and dismounting a device

A method of mounting a device in an opening in a structure, comprising the steps of:

• inserting a mounting arrangement in said opening, said mounting arrangement comprising:
• an outer sleeve,
• an inner sleeve arranged inside said outer sleeve, and
• an adjustment ring arranged inside said outer sleeve,
• said outer sleeve having a first end and a second end, wherein a flange is arranged at said first end, and wherein said first end is arranged to receive said device,
• said flange extending outwardly from said outer sleeve and being adapted to abut an outer surface of said structure around said opening,
• said outer sleeve having at least one aperture extending longitudinally along a portion of said outer sleeve,
• said inner sleeve being arranged in threaded engagement with said adjustment ring or with said outer sleeve,
• said adjustment ring comprising at least one fixing wing extending outwardly from said adjustment ring through said at least one aperture in said outer sleeve,
• said at least one fixing wing being flexible and having an abutment portion adapted to abut an inner surface of said structure around said opening,
• wherein by relative rotary motion of said inner and outer sleeve, said adjustment ring is movable along a longitudinal direction of said arrangement for adjustment to a thickness of said structure,
• wherein said outer sleeve at said second end comprises at least one respective folder portion at an end of said at least one aperture, said at least one folder portion being arranged to fold said at least one fixing wing when said adjustment ring is moved up inside said at least one folder portion;
• abutting said flange against said outer surface of said structure around said opening,
• rotating said outer and inner sleeves in relation to each other, thereby causing said adjustment ring to move along a longitudinal direction of said arrangement, until said at least one fixing wings abuts an inner surface of said structure around said opening, and
• arranging said device in said arrangement.

A method of dismounting a device mounted in an opening in a structure, the method comprising:

• for a mounting arrangement comprising:
• an outer sleeve,
• an inner sleeve arranged inside said outer sleeve, and
• an adjustment ring arranged inside said outer sleeve,
• said outer sleeve having a first end and second end, wherein a flange is arranged at said first end, and wherein said first end is arranged to receive said device,
• said flange extending outwardly from aid outer sleeve and being adapted to abut an outer surface of said structure around said opening,
• said outer sleeve having at least one aperture extending longitudinally along a portion of said outer sleeve,
• said inner sleeve being arranged in threaded engagement with said adjustment ring or with said outer sleeve,
• said adjustment ring comprising at least one fixing wing extending outwardly from said adjustment ring through at least one aperture in said outer sleeve,
• said at least one fixing wing being flexible and having an abutment portion adapted to abut an inner surface of said structure around said opening,
• wherein by relative rotary motion of said inner and outer sleeve, said adjustment ring is movable along a longitudinal direction of said arrangement for adjustment to a thickness of said structure,
• performing the method comprising:
• driving said inner sleeve into said outer sleeve causing said adjustment ring to move along said outer sleeve, until said at least one fixing wing reaches at least one folder portion arranged at an end of said at least one aperture at said second end of said outer sleeve, such that said at least one fixing wing is folded down towards a longitudinal axis of said arrangement when said adjustment ring is moved up inside said at least one folder portion, and
• removing said mounting arrangement from said opening.