U.S. patent number 3,749,908 [Application Number 05/088,544] was granted by the patent office on 1973-07-31 for mounting rims.
This patent grant is currently assigned to Klaus Esser KG. Invention is credited to Klaus Esser, Alfred Heitner, Norbert Hildebrandt, Helmut Schurmann.
United States Patent |
3,749,908 |
Esser , et al. |
July 31, 1973 |
MOUNTING RIMS
Abstract
A mounting rim for light domes, ventilator frames and like
structures comprises a plurality of prefabricated interconnected
shaped members made of heat-insulating material. Each two adjacent
shaped members are connected together by co-operating connecting
portions provided on the respective shaped members. The connecting
portions of adjacent shaped members form a connection in their
longitudinal and transverse directions and can be tightened
together.
Inventors: |
Esser; Klaus (Dusseldorf,
DT), Schurmann; Helmut (Neuss, DT),
Heitner; Alfred (Buttgen, DT), Hildebrandt;
Norbert (Geseke, DT) |
Assignee: |
Klaus Esser KG (Dusseldorf,
DT)
|
Family
ID: |
5751131 |
Appl.
No.: |
05/088,544 |
Filed: |
November 12, 1970 |
Foreign Application Priority Data
|
|
|
|
|
Nov 14, 1969 [DT] |
|
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P 19 57 380.9 |
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Current U.S.
Class: |
52/574; 52/696;
220/693; 52/200; 220/4.03 |
Current CPC
Class: |
E04D
13/0315 (20130101) |
Current International
Class: |
E04D
13/03 (20060101); F21s 003/02 (); B65d
007/00 () |
Field of
Search: |
;240/78R,78H,73BC
;220/76,77,3.94,4R |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Matthews; Samuel S.
Assistant Examiner: Harris; Michael D.
Claims
We claim:
1. A mounting frame for roof skylights such as light domes
comprising a plurality of like prefabricated frame members, a
connecting portion provided at each end of each frame member, the
connecting portion at a first end of each frame member being
bifurcated to form a recess and the connecting portion at the
second end of each frame member comprising a projection, at least
one of said recess and projection being tapered to provide a wedge
fitting when adjoining frame members are connected, a first hole
located in said projection and a second hole extending through at
least one of said bifurcations and adapted to be aligned with said
first hole when adjoining frame members are connected, and securing
means for securing adjacent frame members together at the
connecting portions, said securing means comprising eccentric pin
means positioned in said first and second holes, the eccentric
portion of said pin means being operatively arranged in said first
hole in said projection, the securing means being such that
tightening thereof to secure the frame members together causes
displacement of the frame members relative to each other in the
longitudinal direction of the mounting frame.
2. The mounting frame of claim 1 wherein each frame member
comprises a base flange, each end of the base flange being of a
configuration such as to form an interengaging
recess-and-projection connection with the base flange of a
respective adjacent frame member.
3. The mounting frame of claim 1 wherein each frame member is of
heat-insulating material.
4. A mounting frame for roof skylights such as light domes
comprising a plurality of like prefabricated frame members, a
connecting portion provided at each end of each frame member, the
connecting portion at a first end of each frame member comprising a
first wedge-shaped portion and the connecting portion at the second
end of each frame member comprising a second wedge-shaped portion,
the two wedge-shaped portions of adjacent frame members overlapping
in the manner of a scarf joint, and securing means for securing
adjacent frame members together at the connecting portions, said
securing means comprising frustoconical projections on the wedge
face of the first wedge-shaped portion, and bores in the wedge face
of the second wedge-shaped portion for receiving respective ones of
said frustoconical projections, the frustoconical projections being
urged into respective ones of said bores by means of screws, with
only one side wall of each bore lying against the associated
frustoconical projection.
Description
BACKGROUND OF THE INVENTION
Mounting rims have been proposed which comprise glass
fibrereinforced plastics materials which are mainly made by a hand
lamination or fibre injection method (German Gebrauchsmuster No
1901804). However such manufacturing methods are generally
complicated and expensive.
In order to simplify the manufacture of mounting rims, it has also
been proposed that a mounting rim should be composed of separate
hollow shaped members made by an extrusion pressing method; however
the individual members must then be cut on a bevel and stuck or
welded together (German Pat. specification No 1202464 : German
Gebrauchsmuster No 6903940). Depending on the particular size of
the mounting rim, this method of manufacture has a more or less
high wastage or scrap quota and is therefore also uneconomical.
For this reason, a mounting rim has also been proposed which
comprises a plurality of individual members made from plate
material and each shaped in one piece, the individual members being
connected together on a bevel by screwing or the like. In this
arrangement connecting limb portions are arranged at the end faces
of the individual members, to carry screws or the like fixing means
(German Gebrauchsmuster No 1861685). With these proposed mounting
rims however, a disadvantage is that they do not have the necessary
heat-insulation action. A further disadvantage is that the
connecting limb portions at the corners of the members are a
hinderance when fitting the roof sheathing and they cannot
therefore be enclosed sufficiently sealingly and surely, resulting
over a period of time in structural damage due to the ingress of
moisture.
SUMMARY OF THE INVENTION
An object of the invention is to provide a mounting rim which
overcomes the above disadvantages.
A further object of the invention is to provide a mounting rim
construction which is easy to assemble and is torsionally strong at
the connecting points of the members forming the mounting rim.
According to the present invention, there is provided a mounting
rim for light domes and like structures, comprising a plurality of
interconnected prefabricated shaped members which are made from
heat-insulating material and which are provided with tightenable
portions for connecting together each two adjacent shaped members,
said connecting portions being effective in the transverse and
longitudinal directions.
The prefabricated shaped members are produced for example by a
foaming, pressing or casting process. The above defined arrangement
ensures a particularly favourable load-carrying capacity at the
connecting points which may be subject to loadings due to the load
of the rim members themselves, wind forces and thermal and
mechanical stresses.
The material used also permits any lugs, holes, bevels and the
like, which are necessary for the connection, to be formed directly
on the rim members, so that there is no need for any dressing or
finishing operations when assembling the mounting rim.
In accordance with a further feature of the invention, the
effective connection of the shaped members can be tightened by
eccentric pin means operative to urge the connecting portions of
the shaped members firmly together. Further, in accordance with the
invention, it is particularly desirable for the connecting portions
of respective adjacent shaped members to be in the form of conical
or wedge-shaped inter-engageable connecting lug and recess.
In order to provide for a torsionally strong and flush connection
in the region of the base supporting flange of two adjacent shaped
members, the supporting flange preferably has a groove and key
connection at its co-operating end faces.
In a further aspect of the invention, the connecting portions are
provided on one side of each shaped member with conical projections
or pins which engage into corresponding recesses on the other side
of the respective adjacent shaped member; with this arrangement,
the connecting portions can also be tightened together by means of
one or more screws. If the connection is to be additionally stuck
at the supporting flange, it is desirable for the connection of the
supporting flange portions of two adjacent shaped members to be in
the form of an overlap connection.
For the purpose of fitting securing and sealing materials for the
light dome or ventilator frame to be fitted on the mounting rim,
the invention also provides that in the region of an upper flange
portion on which the light dome rests, the shaped members have a
longitudinally extending shaped portion. If excessively complicated
shaping in the upper flange portion is required to receive the
securing and sealing means, it is desirable for the upper flange
portion to be provided with an additional shaped bar; this permits
the provision of any shaping that may be required in the region of
the connection of the light dome.
In order to give the mounting rim a better seating in a bitumen bed
of a roof surface, in accordance with a further aspect of the
invention, the base supporting flange is perforated.
BRIEF DESCRIPTION OF THE DRAWINGS
Embodiments of a mounting rim according to the invention, which is
composed of four shaped members, will now be described by way of
example with reference to the accompanying drawings, in which:
FIG. 1 shows a perspective view of a mounting rim,
FIG. 2 shows a plan view of a shaped member of the mounting rim
shown in FIG. 1,
FIG. 2a shows a sectional view of the shaped member shown in FIG. 2
along the line II--II,
FIG. 3 shows a section through a connecting point, provided with an
eccentric connection, between two shaped members as shown in FIGS.
1 and 2,
FIG. 4 shows a plan view of another embodiment of a shaped member,
with lateral pins and corresponding recesses,
FIG. 5 shows a section through a connecting point between two
shaped members as shown in FIG. 4, and
FIG. 6 shows a section through a shaped member with attached shaped
bar.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
The mounting rim shown in FIG. 1 comprises four shaped rim members
1, 2, 3 and 4 which are connected together by connecting portions
comprising interengaging lugs and recesses, and eccentric pins to
tighten the connections. One of these four shaped members which
form a mounting rim in accordance with the invention, is shown in
plan view in FIG. 2, to which reference will also be made. The
shaped member has a lug 5 in which there is a hole 6 to receive a
tightening eccentric. At its other end, the shaped member has a
recess or pocket 7 which receives the lug 5 of the adjacent shaped
member. The walls of the recess 7 have a bore 8 and a blind bore
8', respectively (FIG. 3) in which the eccentric is also carried.
At the lug end of the shaped member, in the region of the base or
supporting flange 9 thereof, there is a key member or feather 10
which in the connected position engages into a groove-like recess
11 provided at the recess-carrying end of the adjacent and
co-operating shaped member. The interengaging projections and
recesses of the shaped member can be of a substantially conical
configuration.
FIG. 2a shows a section through the shaped member on line II--II of
FIG. 2. The supporting flange 9 is joined to an inwardly inclined
portion 12 which is in turn continued upwardly (that is, in a
direction away from the flange 9) by an upper flange 13 on which a
light dome, ventilator frame or like structure can be supported.
The upper flange 13 can also be provided with an additional
projecting shaped portion 13a, to accommodate if required means for
securing and/or sealing the light dome.
In the sectional view shown in FIG. 3 through the connecting point
between two adjacent shaped members, the recess 7 is shown as being
formed in the shaped member 1, while the lug 5 is carried on the
shaped member 2, the lug 5 engaging with the recess 7 in the shaped
member 1 when the two shaped members are fitted together. Mounted
in the bores 8 and 8' in the shaped member 1 is the tightening
eccentric in the form of a pin 14 which carries an eccentric 15
which is brought into engagement with the hole 6 in the lug 5 of
the shaped member 2. With this arrangement, rotating the pin 14
tightens the lug connection such that the side and end faces of the
shaped members 1 and 2 are form-lockingly and force-lockingly
connected together. The connecting action can be further increased
if adhesive is introduced into the gaps at the join lines 16 and
16' before the members are brought together. As a result, the pin
14 is also moistened with adhesive, and prevented from possibly
being rotated out later.
In the further embodiment of the invention shown in FIGS. 4 and 5,
frusto-conical projections or pins 18 and 18' are formed on an
inclined bevel surface 17 on the inwardly inclined portion 12 (the
inclination of the surface 17 is shown in FIG. 5). The pins 18 and
18' engage into recesses 20 and 20' located in an inclined bevel
lug portion 19 of each adjacent shaped member when two shaped
members are fitted together. Disposed on the lug portion 19 of one
shaped member, in the region of the base or supporting flange 9, is
an overlap portion 21 which co-operates overlappingly with a
suitable recess 22 formed in the supporting flange 9 of the
adjacent shaped member, in the region of the inclined surface 17
thereof.
FIG. 5 is a section through a connection between the shaped members
1' and 2' shown in FIG. 4. In this case, the pins 18 and 18' are
provided on the member 1' and engage with the recesses 20 and 20'
in the shaped member 2'. When the shaped members are tightened
together to form the mounting rim, the edge portion 23 of the
recess 20 slides along the inclined face 24 of the pin 18, whereby
the shaped members 1' and 2' are form-lockingly and force-lockingly
connected to and braced against each other by tightening a screw
25, similarly to the connection shown in FIG. 3. The connection can
be further improved by applying adhesive into the joint 26.
If more complicated shaping of the flange 13 than the portion 13a
(FIG. 2a) is required, a shaped bar 27 can additionally be fitted,
as shown in FIG. 6, to accommodate fastening and seal material for
fitting a light dome.
Various other modifications may of course be made without departing
from the scope of the invention as defined by the appended
claims.
* * * * *