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Патент USA US2113173

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April 5, 1938.
E. L.’ DUNN ET. AL
2,113,173
MOVING STAIRWAY HANDRAIL GUARD
Filed‘ June :5, 1936
W If“ h‘,
63
‘
‘ INVENTORS
‘ ATTORNEY
Patented Apr. 5, 1938
2,113,1Fii
UNITED STATES PATENT OFFICE
2,113,17 3
MUVING STAIRWAY HANDRAIL GUARD
Edward Lee Dunn, Livingston, N. J., and William _
Henry Bruns, Lincolndale, N. Y., assignors to
Otis Elevator Company, New York, N. Y., a cor
poration of New Jersey
Application June 3, 1936, Serial No. 83,200
8 Claims.
This invention relates to protective devices for
the handrails of moving Stairways.
5
10
15
20
25
30
In a moving stairway installation, the hand
rails are usually carried by newel wheels around
the ends of the stairway at the landings, through
handrail openings provided in the balustrade. It
is desirable to protect the handrail openings of
the moving stairway in a manner to prevent the
?ngers or hands of passengers from being caught
between the edges of the openings and the hand
rail and to exclude the insertion of articles such
as umbrella tips or pencils through the openings.
It is the object of this invention to provide at
the handrail openings of the balustrade guards
which are effective to prevent injury to passen
gers’ hands or ?ngers and to prevent damage to
the moving stairway due to attempts to insert
pointed articles such as umbrella tips or pencils
into the handrail openings.
In carrying out the invention, a rigid guard
extends upwardly around the handrail for an
appreciable distance from the handrail opening
in the balustrade. The guard is so formed that
as the handrail enters the opening in the guard,
each longitudinal element of the handrail is at
a small angle to the edge of the guard adjacent
the handrail so that any object resting on the
handrail and moving with it is de?ected sidewise.
The features and advantages of the invention
will become apparent from the speci?cation and
appended claims.
In the drawing:—
Figure l is a View in perspective of a portion of
a moving stairway showing the balustrade
35 equipped with a handrail guard embodying the
invention;
Figure 2 is an enlarged perspective View of the
guard and a portion of the stairway;
(Cl. 198—16)
metal selected to harmonize with or match the
material of the balustrade structure.
According to the preferred construction the
guard comprises two symmetrical horn-shaped
casings 20, arranged around the handrail and
extending upwardly from the handrail opening.
The handrail is illustrated as C-shaped in sec
tion, the inner and outer surfaces of the casings
being of the contour of the handrail. Each-cas~
ing is formed with an integral flange 2! at its
base and is secured to the end plate of the
balustrade as by screws 22. Each casing extends
upwardly around the handrail from its respective
flange 2!. The rear edge 23 of the casing abuts
throughout its length the balustrade ii, The
casing is formed so as to wrap around the hand
rail and at its base extends to substantially the
longitudinal center line of the handrail. The
front edge 24 of the casing extends upwardly
from the base for a short distance parallel to the
longitudinal center line of the handrail and
thence at a suitable angle (about twenty degrees)
along and around the handrail to the upper end
of the casing where it intersects the rear edge.
The upper end of the casing is secured to the
balustrade as by a screw 25. The angled portion
of the front edge is bevelled throughout its
length from the inner surface to the outer sur
face of the casing at an acuate angle to the inner
surface. The casing is formed to provide a uni
form close clearance, say one-sixteenth of an
inch, between the front edge of the casing and
the outer surface of the handrail. Also, clear
ance is provided between the adjacent parallel
portions of the front edges of the casings .to 35
provide a slot 26.
In operation, in the event that a person grips
the moving handrail as it enters the guard, his
grip will be broken when his hand engages the
sloping surfaces of the guard. Also, if a person’s
Figure 3 is a View looking at the front of the
40 guard in the direction of arrows 3-3 of Figure 2,
with parts of the stairway shown broken away; _ ?nger is pressed against the ?at face of the mov~
Figure 4 is a section taken along the line ll—-4 ing handrail, it will, upon encountering the bev
elled angular front edge of one of the casings, be
of Figure 3; and
Figure 5 is a section taken along the line 5-5 de?ected across the handrail toward the slot 2%.
45 of Figure 3.
If the ?nger is not lifted from the handrail, it
Referring to the drawing, the balustrade ll of will ride up the bevelled surfaces when it reaches
the slot 25. Should an attempt be made to insert
the moving stairway I2 is equipped with a mov
an article such as a pencil point or the like be
able handrail l4. The handrail is carried by a
tween the handrail and the guard, the article is
50 newel wheel I5 around the end of the stairway forced off the handrail at the slot 26 by the
through a handrail opening it provided in the action of the bevelled edges of the casings, the
end plate I‘! of the balustrade. A guard, desig
slot 26 preventing the point being jammed be
nated as a whole by the numeral I8, is provided tween the handrail and the casings as the center
for the handrail opening. Guard 18 is preferably line of the handrail is reached.
55 of metal. If desired, the guard may be of a
Many modi?cations of construction could be
2
2,113,173
made without departing from the scope of the
invention. For example, the guard may be made
in one piece with its front edge extending from
one back edge around the handrail at an angle
to its direction of movement across the face of
the handrail to the other back edge. By Way of
further example, the guard may be made in the
form of a wedge extending upwardly around the
handrail and having its base at the opening in
10 the balustrade and its apex at the center line of
the handrail. It is therefore to be understood
that all matter contained in the above descrip
ion or shown in the accompanying drawing
shall be interpreted as illustrative and not in a
-: limiting sense.
What is claimed is:—
l. A protective device for a moving stairway
handrail opening comprising, a pair of horn
shaped casings arranged around the handrail
> and extending upwardly from the handrail open
ing and diverging'from the longitudinal center
line of the handrail.
2. A protective device for a moving stairway
ly therefrom, each casing being formed so as to
wrap around the handrail with its front edge ex
tending upwardly from said opening for a short
distance parallel to the longitudinal center line
of the handrail and thence at a small angle along
and around the handrail to the upper end of the
casing, the angled portion of the front edge being
bevelled from the inner surface to the outer sur 10
face of the casing at an acute angle to the inner
surface at least where the angled portion joins the
parallel portion.
'7. A protective device for a handrail opening
in the balustrade of a moving stairway compris 15
ing, a pair of casings mounted at said opening,
one on each side of the longitudinal center line
of the handrail, and extending upwardly there
from, each casing having a base secured to the
balustrate at said opening and being formed so 20
as to wrap around the handrail with its front
edge extending upwardly from said base for a
short distance parallel to the longitudinal center
handrail opening comprising, guarding means,
line of the handrail and thence at a small an
and means for mounting said guarding means in
superposed position upon said opening, the inner
gle along and around the handrail to the upper
end of the casing, the angled portion of the front
surface of said guarding means having an eX
edge being bevelled throughout its length from
posed edge extending around and along the hand
the inner surface to the outer surface of the
casing with a uniform close clearance between
the inner surface of the casing at said front edge 30
at least along said angled portion and the outer
surface of said handrail, the rear edge of the
rail at a small angle to the longitudinal center
line of said handrail.
3. A protective device for a handrail opening
in a balustrade of a moving stairway comprising,
guarding means arranged around the handrail
to de?ne an opening through which the handrail
extends with a small clearance, the inner surface
of said guarding means having exposed edges ar
ranged to form a V with the point of the V on the
longitudinal center line of said handrail, and
means for mounting said guarding means in po
40
handrail opening comprising, a pair of casings
mounted at said opening and extending upward
sition with respect to said handrail opening.
4. A protective device for a moving stairway
handrail opening comprising, a pair of casings
mounted at said opening and extending upward
ly therefrom, each casing being formed so as to
wrap around the handrail with at least a portion
of its front edge extending at a small angle away
from the longitudinal center of the handrail to
the upper end of the casing.
5. A protective device for a moving stairway
handrail opening comprising, a pair of casings
mounted at said opening and extending upward
ly therefrom, each casing being formed so as to
wrap around the handrail with its front edge
extending upwardly from said opening for a short
distance parallel to the longitudinal center line
of the handrail and thence at a small angle along
and around the handrail to the upper end of the
casing.
6. A protective device for a moving stairway
casing abutting the balustrade throughout its
length.
8. A protective device for an opening for a 35
C-shaped handrail in the balustrade of a moving
stairway comprising, a pair of casings extending
upwardly from said opening, one on each side
of the longitudinal center line of the handrail,
each casing having a base secured to said balus 40
trade at said opening and being formed so as
to wrap around the handrail with its front edge
extending upwardly from said base for a short
distance parallel to the longitudinal center line
of the handrail and thence away from the other 45.
casing at an angle of approximately twenty de
grees to the direction of motion of the handrail
along and around the handrail to the upper end
of the casing, the angled portion of the front
edge being bevelled throughout its length from 50
the inner surface to the outer surface of the cas
ing at an acute angle to the inner surface with
a uniform close clearance between said front
edge and the outer surface of said handrail,
clearance being provided between adjacent par 55
allel portions of the front edges of the casings
to provide a slot.
EDWARD LEE DUNN.
WILLIAM HENRY BRUNS,
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