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OUTSIDE VIEW |
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INSIDE VIEW |
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The doors are SCISSOR DOORS as manufactured by Dorion Doors
Inc., 2987, boul. Perrot, Île Perrot, Quebec, Canada J7V 8P4.
All doors are manufactured as per our shop drawings and
standardized specifications described below.
All doors are also manufactured in accordance with the norm CSA
W47.1 from the Canadian Welding Bureau.
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The scissor door consists of two horizontal panels joined at the
centre with hinges. The top of the upper panel is hinged to the
header of the structure made of vertical beams and HSS in the
horizontal plane. One 100 mm (4") diameter bottom roller guide
is supplied on each side of the lower panel that slide in the
vertical plane made of angle-irons affixed to the vertical
beams.
When the door is working, the meeting of both panels is pushed
toward the exterior and the lower panel slides into the vertical
tracks to refold the panels on themselves.
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The doors are manufactured to withstand an overload due to the
wind of 1 kPa with less than 1/240 deflection in the horizontal
plane.
In some cases, depending on the door size, an extra exterior
truss is necessary.
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The frame of the door panels will be made of steel HSS at least
75 mm x 5 mm minimum, reinforced with gussets and covered with
covering sheets.
The covering sheets are .455 mm thick (26 gauge) in steel.
We use "Vicwest" series of products in their standard colours
for the outside face and generally the "Muralic" pure white for
the inside face.
The covering sheets are screwed on the frame with self-taping
steel screws.
The lower panel has an inside truss to reduce the deflection as
well as serving as a strut for the lifting mechanism.
The upper panel has an exterior truss, in certain cases, to
respect the deflection.
The welding procedures as well as the welds, while the panels
are being manufactured, are inspected by the welding supervisor
in accordance with the norm CSA W47.1 from the Canadian Welding
Bureau.
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The insulation is a injected fire-retardant polyurethane foam .
The RSI value is ±3,52 (R-20).
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The hinges will consist of round tubing welded on steel plates
which in turn are welded to the frame of the door panels. The
hinges are held together with a 25 mm diameter steel shaft
inserted into place and secured mechanically.
The welding procedures as well as the welds, while the panels
are being manufactured, are inspected by the welding supervisor
in accordance with the norm CSA W47.1 from the Canadian Welding
Bureau.
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The opening mechanism consist of one electric motor provided
with a friction electric brake, size 120 gear box with a 50:1
ratio linked to a minimum 38 mm in diameter shaft through the
medium of #R80 minimum roller chains and sprockets.
The mechanism is mounted on the lower panel and held in place by
an appropriate steel frame.
The final ratio will be sufficient to prevent the motor from
counter-rotation.
Drums are mounted on the shaft and the number is determined by
the width of the door. The lifting straps roll up on the drums
to hoist or to bring down the door. The shaft must be specified
according to the dimensions and weight of the panels and must be
secured to the frame of the door by pillow blocks which are
mechanically bolted.
Adjustable latches ensures an easy adjustment of the lifting
straps on the upper panel.
The opening mechanism is also available to be attached on the
upper or the adjacent wall or still on the right or on the left
when a manual operation is specified or required.
The mechanism can also be counterbalanced by one or two
counterweights depending on the opening width of the door.
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The doors are provided with polyester lifting straps. The number
of straps is determined by the size and the weight of the door.
The straps will be 75 mm wide. The safety breaking point must be
minimum 7:1.
The straps are quiet, easily adjustable and when rolling up, the
door speed gradually increases which in turn provides a good
safety breaking-point (slower at the end of the closing action).
It is possible to replace the polyester straps by aircraft
galvanized steel cables, construction 7 x 19, with a breaking
strength of 7:1.
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The operation is provided by the intermediary of an electric
operator which power is determined by the size and the weight of
the door.
The control station is flush mounted, easily accessible from the
floor and is equipped with constant pressure two push-buttons
marked «open-close».
It is possible to operate the door manually in case of a power
failure by a gearing down of a chain hoist. It will result in a
unit mounted on the upper or adjacent wall on both sides of the
opening as well as, in certain cases, using counterweights to
counterbalance the door itself.
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The operation of the door when opening and closing is controlled
by a limit switch in order to adjust the door to its full height
or it complete closing.
A safety latch is provided at each extremity of the lower panel
to interlock the door in place in the closing position.
Limit switches cut the power to the electric operator when the
door is in the locked position.
It is possible to install, on the inside, an automatic latch on
each side of the opening.
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A mechanism that interlocks the door in place with pulleys and
two limit switches.
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On the vertical perimeter at the extremities of the panels are
fastened a rigid PVC extruded channel in which is inserted the
"U"-shaped santoprene weatherstrip.
This type of weatherstrip is applied on the inside of the finish
face and on the outside of the covering sheet face.
A closed cells santoprene weatherstrip 75 mm wide is glued in
place the full width of the door between both panels.
A one length duro 60 neoprene rubber 6,4 mm thick is fastened at
the top of the upper panel and above the hinges that secure the
door in place on the frame.
A double rigid PVC extruded channel in which is inserted the
"U"-shaped santoprene weatherstrip is fastened underneath the
lower panel.
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The frame of the panels is covered with one coat of epoxy primer
paint 26 microns thick.
A tape is applied between the outside covering sheet and the
inside face of the frame to prevent any contact between them.
The outside covering sheets are supplied in the standard colours
from "Vicwest" series of products.
The "Muralic" type inside covering sheets are supplied in the
colour pure white from "Vicwest".
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The standard glazing used in those doors is rectangular 610 mm x
305 mm in clear wired mesh glass 6,4 mm thick outside and clear
tempered glass 3,2 mm thick inside, sealed "thermo" pane 25 mm
thick encased in a steel moulding secured in place by EPDM
rubber insulators. The inside moulding is secured in order to
remove it if necessary.
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- Pedestrian door inside the lower panel provided with either a
panic bar, a door-latch, a lock or still a retaining chain.
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The doors can cover a maximum opening of 30 m (100 feet) wide x
7,62 m (25 feet) high.
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DOORWAY FOR INSTALLATION:
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The frame of the building must consist of "H"-beams on each side
of the opening fastened to the ground with anchors or poured in
cement and fastened at the header to a square HSS in the
horizontal plane. The square HSS must be positioned at minimum
914 mm (3 feet) above the opening.
This frame is mounted either flush on the building or as
doorjambs and must be fastened to the existing doorway with
limbs.
The installation of this door is available on any building with
an added steel doorway independently of the frame of the
building. The doorway is fastened to the ground on cement
pilasters and interlocked by the appropriate fasteners. The
connection between this doorway and the existing building does
not suffer any constraint.
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The door manufacturer must have a minimum of five years
experience in manufacturing doors of the required model.
The welding procedures and the welders, in workshops as well as
on the jobsites, must have been approved and qualified by the
Canadian Welding Bureau in accordance with the norm CSA W47.1.
The welding procedures in workshops and on the jobsites must be
submitted to the project manager before manufacturing.
The manufacturer/installer must have a liability insurance of
2,000,000$ minimum.
The manufacturer/installer must be registered and must hold a
licence in order with the Régie du bâtiment du Québec.
The manufacturer/installer must be registered with the
Commission de la construction du Québec (CCQ) as well as with
the Commission de la santé et de la sécurité du travail (CSST).
The manufacturer/installer must be in order with these
organisms.
The installers must have all their permits or their
qualification cards in order as govern by the Commission de la
Construction du Québec.
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