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Custom Side Folding Grilles & Closures - Commercial |
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| Side Folding Grilles & Closures Glossary |
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Every field of business has a unique language - side folding closures
and grilles included. That's why we thought a Glossary of
terms would be helpful.
If you have any questions, suggestions, or ideas on how we can be more helpful please Email us at
Sales@Accordion-Door.com
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| Accordion |
Expressive term used to describe how Side Folding Curtains operate.
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| Adjustable Height Hardware |
Allows up to 1" (25mm) upward or downward height adjustment without removal of installed curtain.
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| Alignment Bar |
An aluminum strip designed to fit into and align two connecting pieces of Track.
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| Attached Pull Rod |
Rod attached to the top of posts with multidirectional ball allowing curtain to be pulled at the proper angle. Standard on
curtains over 9' (2750mm) high and on all Counter applications.
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Bigfoot (Floor)
Bigfoot Jr. (Counters) |
A steel pad mounted on the bottom of the dropbolt. Used when the floor or countertop can not be drilled
to accept a drop bolt socket. This is for crowd control, not a high security option.
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| Bi-Part |
A curtain that stacks on both sides of an opening and joins together
the same as a lead post into a wall channel with an added dropbolt
to prevent sway. Drop bolt engages into floor socket.
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| Closure |
Side folding curtains made of tempered glass, polycarbonate, solid aluminum
or perforated steel powder coat painted panels.
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| Curtain |
The assembled folding panels of the side folding closure or grille.
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| Curves |
Track bent to form 90, 120, 135 and 150 degree angles. Radii for
standard models are 10" (254mm) and 14" (356mm). Wide Body models are 22" (599mm).
Special curves and radii are available.
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| Drop Bolt |
1045 cold rolled steel rod of Rockwell hardness 55 activated by a spring loaded lock. Drop bolt
rod projects into floor or counter sockets and is adjustable.
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| Drop Bolt Socket |
Floor Socket is one of two types. Allows for 1 1/2" (38mm) depth of engagement of the dropbolt. Constructed
of a heavy steel gauge steel outer wall and stainless steel spring loaded head, overall dimensions are 2 5/8" x 3/4" (67mm x 19mm).
Counter Socket allows for 1" (25mm) depth of engagement of the dropbolt. Constructed of aluminum with a spring loaded head,
overall dimensions are 2" x 3/4" (51mm x 19mm).
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| Emergency Egress Door |
This is exactly what it says it is - an Emergency Egress Door,
not a pass door. This 3'0 x 7'0 (900mm x 2020mm) door is built within the curtain.
Egress hardware can be thumb turn, lever or paddle device - see your
local codes for acceptability.
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| Exterior |
Refers to the side of the curtain that is on the unsecured side.
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| Fixed End Post |
Last post of the curtain, closest to wall, that is permanently mounted to wall.
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| Grille |
Side folding curtains made of aluminum panels, rods and tubes making
an "open air" design.
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| Header |
Structural support for track that carries the side folding grille or closure.
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| Header Stop |
Aluminum block mounted in pocket adjacent to track on interior so it will "catch" top stop of traveling
end post.
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| Hook bolt |
Hook bolt Lock assembly activated by keyed mortise cylinder or Thumb Turn interlocking with wall channel.
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| Interior |
Refers to the side of the curtain that is on the secured side.
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| Intermediate Post |
A middle Post in a Curtain located no more than 10' (3000mm) O.C. for full height and 6' (1800mm) O.C. for counter height from any other Post.
Intermediate Posts should be placed on or near center of Curves. Intermediate Posts have a Dropbolt that is spring loaded and unlocked with a keyed
cylinder. Drop bolts engage into Floor or Counter sockets.
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| Latch Handle |
Aluminum spring loaded "lever" 1 7/8" (48mm) is used as an alternative to the keyed cylinder. Thumb turn or paddle
device to secure or unlock lead post or emergency egress door.
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| Lead Post |
The first post of the curtain to pull out of the stack area. This post
will have hookbolt lock that secures into a wall channel or be a Top &
Bottom locking post. Of course, if the curtain bi-parts, each lead post
would be half of the Bi-part.
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| Lift Bolt |
1081 cold rolled steel rod activated by a spring loaded lock. Rod projects through track into header.
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| Operation |
It's easy to open. Curtains 9' and under should be pulled above the halfway point
so as not to angle the curtain and cause stress. Higher curtains have attached
pull rods as do all counter height curtains. To close, stand at pocket
entrance and slowly feed curtain into pocket. Always pulling or pushing as high as you can.
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| Paddle Device |
Aluminum "panic" paddle 4 3/4" x 3" (120mm x 80mm) used as an alternative to the keyed cylinder, thumb turn or latch
handle to secure or unlock lead post or emergency egress door.
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| Pocket |
Area inside a wall structure - usually provided by general contractor -
to store closure or grille - so it cannot be seen
during business hours.
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| Protection Plate |
Attached to the back of a travelling end post, the black HIEP protection plate is a maximum
10' (3000mm) in height. This is designed to prevent anyone from reaching around the post. May also be applied to
the top and bottom post.
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| Stack |
Closure or grille curtain folded tightly forms a stack. Often an
area in the wall will be for storage - that space is called a pocket.
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| Thumb Turn |
Non removable key like knob fixed to a cylinder used as an alternative to the keyed cylinder. Thumb turn or latch
handle to secure or unlock posts or emergency egress door.
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Top & Bottom
Locking Post |
A lead or end post can be a Top & Bottom Locking Post. A spring
loaded drop bolt engages a floor socket and a top lift bolt
protrudes into track and header.
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| Track |
Extruded aluminum 1 3/8" (35mm) wide by 1 5/8" (14mm) high. Track is joined together
with hardened steel track pins (like model railroad tracks) and
alignment bars constructing a smooth continuous surface for the trolleys
to carry the curtain.
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| Track Switch |
The track switch is a device designed to allow "wall to wall" locking
of a closure or grille even though it stacks at 90° to the opening.
Also may be used to use one grille/closure to secure two different
openings at different times. Crank operated.
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| Traveling End Post |
Last Post of the Curtain that travels to the front of the Pocket when Curtain is extended across opening. The Post Top Stop
self locks into a Header Stopper and a Floor "V" Stop inside of Pocket. A full height (maximum 10' (3000mm) Protection
Plate is attached to back of Post.
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| Trolley |
Dual 1 1/8" (28mm) nylon wheels spaced to ride in track. The trolleys support
the full weight of the curtain.
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| "V" Stop |
Used in pockets only. This "V" shaped piece of steel is spread the
width of the pocket and secured to floor. Placement in the pocket
is located by fully assembled curtain being stretched into pocket.
The Traveling End Post has a stopper that adjusts down so that
only the back post will engage into the 3/4" high "V" Stop. Counter "V" stop is 1/2" high.
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| Wall Channel |
A full height extruded piece of aluminum that the lead post fits
and locks into. This channel is secured permanently to the wall.
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