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Патент USA US3051279

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Aug. 28, 1962
N. R. GUILBERT, JR., ETAL
3,051,269
POWER OPERATOR FOR ELEVATOR SHAFTWAY DOORS -
Filed April 25, 1958
2 Sheets-Sheet l
54
g ' ATTORNEY
Aug. 28, 1962
N. R. GUILBERT, JR, ETAL
3,051,269
POWER OPERATOR FOR ELEVATOR SHAFTWAY DOORS
Filed April 25, 1958
2 sheetsésheet 2
E
INVE ‘roR
-
‘(Jam D6 60
ATTORNEY
fine
3,h5i,265
Patented Aug. 28, 1962
2
FIG. 6 is a vertical sectional view taken approximately
3,051,269
on the line 6——6 of FIG. 4.
POWER GPERATOR FOR ELEVATOR
SAY DOORS
Nicholas R. Guilbert, Jr., Glenside, and John J. De Feo,
It should, of course, be understood that the description
and drawings herein are illustrative merely, and that vari
ous modi?cations and changes can be made in the struc
Philadelphia, Pa, assignors to Guilbert, Incorporated,
ture disclosed without departing from the spirit of the
invention.
Like numerals refer to like parts throughout the several
Philadelphia, Pa., a corporation of Pennsyivania
Filed Apr. 25, 1958, Ser. No. 731,029
8 Claims. (Cl. 187-40)
views.
This invention relates to operators for elevator shaft
way doors and the like, and more particularly vertically
rising or sliding doors.
Referring now more particularly to the drawings, a por
tion of a vertical shaftway or hatchway is illustrated at
it‘? having a plurality of landings, one of which is shown
Various power operators have heretofore been proposed
at 11, with an access opening 12 into the shaftway 10.
by which a vertical rising or sliding door of an elevator
The access opening 12 has a shaftway closure, which
car or dumbwaiter is employed to operate a shaftway door 15 can be a single door (not shown) ‘but which for purposes
or doors but none of these has proven wholly suitable.
of illustration is shown {as including upper and lower bi
It is the principal object of the present invention to pro
parting vertically slidable hatch doors 13 and 14. The
vide an improved operator for a vertically movable or
doors 13 and 14 are removable in conventional vertical
sliding shaftway door, which may be either a single door
side guides 15 and can be connected in a well known
or an upper door or doors of the bi-parting type, wherein 20 manner for simultaneous downward movement of the
the movement of a car carried device is effective, upon
lower door 14 upon upward movement of the upper
opening of a car carried door, either of the single section
door 13.
or bi-parting type, to open the shaftway door or doors.
A car 20, mounted for vertical movement in vertical
It is a further object of the present invention to pro
guides (not shown) is provided, and can have an inter
vide a car carried door operating device which is normally
lock release arm 22 thereon for releasing an interlock
held in retracted position when the car carried door is
23 which normally holds the doors 13 and 14 in locked
condition when the car 20 is remote therefrom.
closed, and which is moved, upon opening movement of
the car carried door, to a position to engage a gripper on
The car 24} is provided with ‘a closure preferably con
a shaft'way door and move the shaftway door into open
sisting of upper and lower bi-parting vertically movable,
position.
doors 24 and 25. The doors 24 and 25 are movable in
It is a further object of the present invention to provide
vertical side guides 26 carried by the car and are con
a shaftway door operating device which is simple in con
nected for simultaneous downward movement of the
lower door 25 upon upward movement of the door 24.
struction, reliable in its operation and which can be
readily installed upon car and shaftway doors now in
For purposes of operating the doors 24 and 25 simul
use, without interfering with conventional safety inter 35 taneously and in counterbalanced relation, the upper door
locks and the like now employed on the shaftway doors
24 has chains 27 connected to the upper margins thereof
which extend over sheaves 27a at the upper ends of the
guides 26 and then downwardly and are connected to side
brackets 23 on the lower door 25.
and ‘cars.
It is a further object of the present invention to provide
an improved form of door operator which includes one or
more grippers carried on a shaftway door for impelling 40
said door to open position and permitting the closing of
the same, and one or more retractable vanes carried on
the car and normally in retracted and locked position
when the car door is closed, but which are impelled to
For purposes of impelling the doors 24 and 25 to open
and closed position, a bracket 29 is provided on one side
edge of the door 24 from which a chain 29a extends up~
wardly along one side of the door 24, over the sheaves
27a and above the top edge of the door 24, downwardly
an operating position for engagement with the grippers 45 along the other side of the door 24, and is connected to
upon opening movement of the car door.
a bracket 3% on a side edge of the door 25 oppositely dis
It is a further object of the present invention to provide
an improved form of door operator which includes one
or more grippers engageable by retractable vanes with a
posed with respect to the bracket 28. The chain 2%
extends downwardly from the bracket 30 and around a
lower sheave 31, then over a driving sprocket 32 carried
frictional engagement and in which the grippers can be
separated upon the application thereon of a predeter
mined force.
Other objects and advantageous features of the inven
in a frame 33 on the bottom of the car 20, then down and
around a lower sheave 34, and then upwardly to the
bracket 29 to which it is connected.
A reversible actuating motor 35 is mounted on the
tion will be apparent from the description and claims.
The nature and characteristic features of the invention
will be more readily understood from the following de
scription, taken in connection with the accompanying
frame 33 and is connected through a speed reducer 36
55 to the sprocket 32. The motor 35 is of the “torque” type
so as to be restrained by a predetermined torque exerted
thereon.
.
If desired, a friction brake 37 can be provided between
FIGURE 1 is a fragmentary vertical sectional view 60 the sheaves 27a and through which the chain 29a passes,
the Ibrake 37 being actuated by T-links 38 mounted on the
showing a shaftway and elevator car doors with the opera
chain
29a and engageable with the brake 37 near the
tor of the present invention applied thereto;
limit ‘of travel in each direction of the doors 24 and 25
FIG. 2 is a front elevational view of the car doors shown
to cause the chain 29a and the doors 24 and 25 to which
in FIG. 1;
it is connected to move more slowly.
FIG. 3 is a horizontal sectional view taken approxi 65
The energization of the motor 35 is controlled by any
mately on the line 3—3 of FIG. 1;
suitable control mechanism, and can be actuated by an
FIG. 4 is a horizontal fragmentary sectional view, en
operator in the car, or by remote or automatic control
larged, taken at the upper edge of the upper car door and
mechanism, for opening and closing the doors 24 and 25
showing the details of construction;
at the desired landing.
FIG. 5 is a vertical sectional view showing a portion 70 The mechanism for opening and closing the shaftway
of FIG. 1 with one of the door operators in the operating
or hatch doors 13 and 14, upon corresponding movement
position; and
of the doors 24‘:- and 25 will now be described.
drawings forming part thereof, in which:
4
3
The door 13, on one or both side margins thereof, and
preferably near the top margin is provided with gripper
brackets 40 to serve as supports for abutments which
include ?xed gripper plates 41 withrfacings 42 mounted
thereon of any suitable friction material, such as brake
lining, material.
,
is simultaneously lowered by reason of its connection
to the door 13.
As the vdoors 24 and 25 approach their fully open posi
tion, the brake 37 is actuated by one of the T-links 38
to reduce the speed of movement of the chain until the
motor 35 is deenergized.
When it is desired to close the doors 24 and 25, the
motor 35 is energized in the reverse direction from that’
for opening to drive the chain 29a in the opposite direc
tion for closing.
The door 24-, with the upper edge faces 53 of the
vanes 5%} in engagement with the facings 42 and 44 moves
The abutments also each include a movable gripper
plate 43, with a facing 44 mounted thereon of any suit
able friction material, such as brake lining material. The
movable gripper plates 43 are supported in the brackets
40 on pins 43a and are normally urged by leaf springs
45 to a position with the facing 44 in engagement with
downwardly, permitting the door 13 to descend, and
the facing 42. Adjusting screws 46, mounted in the
upon continued downward movement the pins 56 engage
brackets 40, are provided for determining the force
applied by the springs 45. This force is such as to pre 15 the lower faces 55b and are directed by the cam track
way 55 to retract the vanes 55 out of door operating
vent separation of the movable gripper plate 43 with
positions. As the pins 56 enter the trackway 55 the pins
respect to the ?xed gripper plate 41 in normal raising
56 move downwardly and out of engagement in the
and lowering of the doors 13 and 14 to permit separation
notches 59. The brake 37 is activated by a T-link 38
of the gripper plate 43 under certain predetermined con
as the doors 24 and 25 approachtheir closed positions
ditions.
to reduce the speed of movement thereof prior to de
On a part of the car 20 for simultaneous movement
energization of the motor 35.
with the ‘door 24, and preferably on the door 24 at each
it will be noted that only a short vertical motion of
side margin thereof, a vane 50 is provided, pivotally
the door 724 is effective for advancing the vane 50 to a
mounted at the upper portion thereof by a pivot pin 51,
for swinging movement towards and away from the lower 25 position to open the shaft door 13. The distance the
door 24 moves, to open the door 13 to a fully open
end margins of the gripper plates 41 and 43. The vane
position, is only slightly in excess of the movement of
50 has an actuating projection 52 formed thereon with
the door 13.
7
an upper edge face 53 for engagement, as hereinafter
It will also be noted that if, for any reason, the car
explained, with the lower end margins of the facings
30 29 should be lowered with the vane 50* in, its outer posi
42 and 44.
tion, the force applied on the upper edges of the facing
The door guides 26 have mounted thereon, in any
portions 42 and 44, the resistant force of which is ad
desired manner, and extending inwardly from the door
justable as heretofore pointed out, will cause the gripper
24, a downwardly inclined cam trackway 55 having .an
plate 43 to separate from the gripper plate 41 so that
upper cam face 55a and a lower and longer cam face
the vane 50 can pass without damaging the projection 52.
55b.‘ An actuating pin 56, mounted on the lower inner
For some types of installations, a single car carried
end of each of the vanes 50 extends into the trackway 55
vane 59 and a single pair of grippers 41 and 43 will
for engagement with the faces 55a and 55b for impelling
sul?ce to e?ect the opening and closing of the shaftway
the vanes 50 upon relative movement of the door 24 with
respect to the guides 26.
We claim:
A vane lock lever 57, pivotally mounted by a pivot 40
11. Door operating mechanism for 1a vertically slidable
pin 58 on the side margin of the door 24 below the pivot
doors.
'
'
pin 51 is provided and is swingable from an upwardly
hatchway door (in an elevator hatchway having an eleva
inclined position as illustrated in FIG. 1 to a horizontal
tor car therein, comprising va vertically movable mem
ber on said elevator car movable with respect to said car,
a vertically elongated abutment mounted at a ?xed loca
or downwardly inclined locking position as shown in
FIG. 5. The levers 57 have notches 59 in the lower
edges thereof for engagement with the pins 56 in a
downward and locking position of the levers 57 and with
the vanes 50 in their outer and gripper engaging positions.
The mode of operation will now be pointed out, start
ing with the condition in which the hatchway doors 13
and 14 are closed and held by the interlock 23.
With the doors 24 and 25 in closed position, the actuat
ing pins 56 are in the lower part of the cam trackways
55 and the vanes 50 are held in retracted condition.
If now the car 20 is brought to a position with respect
to the hatchway doors 13 and 14 so that the interlock
23 is released, upon energization of the motor 35 the
chain 29a, by its engagement with the bracket 29, will
initiate the raising of the door 24 and by its engagement
with the bracket 30 will initiate the lowering of the 60
door 25.
tion on and projecting from said hatchway door, said
abutment having force applying parts releasable upon
application of a predetermined force thereon, a pivotally
mounted pendant vane on said movable member and
swingable in a ventical plane, and members including a
?xed guide on a ?xed portion of said car and a projec
tion on said vane engaging said guide for swinging said
vane and thereby positioning the lower part of said vane
for engagement with said parts of said abutment upon
relative movement of said 'movable member and said
?xed portion of said car in one vertical direction and for
retracting said vane upon relative movement of said
movable member and said ?xed portion of said car in the
opposite vertical direction.
_
2. Door operating mechanism for a vertically slidable
hatchway door in an elevator hatchway having an elevator
car therein, comprising a vertically movable member on
As the door 24 starts to rise, the actuating pins 56, by
said elevator car movable with respect to said car, a ver
their engagement with the cam trackways 55 will permit
tically elongated abutment mounted at a ?xed location
the vanes 50 to swing outwardly to a position where the
actuating projection 52 is in a projecting position for 65 on and projecting from said hatchway door, said abut
ment having force applying parts releasable upon ap
door operation with the upper edge faces 53 thereof
plication of a predetermined force thereon, a pivotally
horizontally disposed. As the vanes 50 swing outwardly
mounted pendant vane on said movable member and
and a separation of the pins 56 from the trackways 55
swi-ngable in a vertical plane, and members including a
occurs, the lock levers 57 swing downwardly and the
notches 59 engage the pins 56 and prevent accidental 70 ?xed guide on a ?xed portion of said car and a projection
inward swinging of the vanes 50.
on said vane engaging said guide for swinging said vane
Upon further upward movement of the door 24, the
and thereby positioning the lower part of said vane for
edge faces 53 engage the lower margins of the gripper
engagement vwith said parts of said abutment upon rela
facings 42 and 44 of the gripper plates 41 and 43 and
tive movement of said movable member and said ?xed
by this engagement the door 13 is raised. The door 14 75 portion of said oar ‘in one vertical direction and for re
r:
3,051,269
5
6
tracting said vane upon relative movement of said mov
vane, a horizontal vane mounting pivot at a ?xed location
on said car door connected to said vane at the upper
able member and said ?xed portion of said car in the
opposite vertical direction, said vane during 1a part of the
portion of said vane, said vane having a projection at the
lower portion thereof engageable with said parts of said
abutment member for moving said hatchway door, a pin
movement of said movable portion by its engagement
with said parts of said abutment controlling the movement
of said hatchway door.
3. Door operating mechanism for a vertically slidable
elevator hatchway door comprising an elevator car having
a vertically slidable door a vertically elongated abutment
extending from said vane, a ?xed guideway mounted on
the car and engageable by said pin for advancing said
projection to abutment member engaging position upon
a part of the upward movement of said car door and
member ‘at a ?xed location on and projecting from said 10 for retracting said projection upon a portion of the down
ward movement of said car door, and a member carried
hatchway door, said abutment member having spring
by said car for holding said vane in an advanced position
biased parts releasable upon the application of a pre
during other portions of upward ‘and downward move
determined force thereon, a pendant vane, a horizontal
ment of said car door.
pivotal vane mounting member for said vane connected
7. Elevator car operated hatchway door actuating
to the upper portion of said vane, said vane mounting
mechanism for a vertically slidable hatchway door in a
member being movable with said car door, said vane
hatchway having an elevator car therein comprising a
having a lower portion for engagement with said parts
vertically elongated abutment member mounted on and
of said ‘abutment member for the positioning of said hatch
projecting from the hatchway door, said abutment mem~
way door upon movement of said car door, and inter
engaging members carried by said vane and said car in 20 ber having force applying parts releasable upon the ap
plication of a predetermined force thereon, said car hav
cluding a ?xed guide on a ?xed portion of said car and
ing a vertically slidable door mounted thereon, a pendant
a projection on said vane engaging said guide for ad
vane, a horizontal vane mounting pivot at a ?xed location
vancing said vane upon a portion of the movement of said
on said car door connected to said vane at the upper por
car door in an upward direction and for retracting said
vane upon a portion of the movement of said car door in 25 tion of said vane, said vane having a projection at the
lower portion thereof engageable with said parts of said
abutment member for moving said hatchway door, a pin
a downward direction.
4. Door operating mechanism for a vertically slidable
elevator hatchway 'door comprising an elevator car having
a vertically slidable door, a vertically elongated abutment
extending from said vane, a ?xed guideway mounted on
the car and engageable by said pin for advancing said
projection to la'btument member engaging position upon
member at a ?xed location on ‘and projecting from said
a part of the upward movement of said car door and for
retracting said projection upon a portion of the downward
plying parts releasable upon the application of a pre
movement of said car door, and a locking lever carried
determined force thereon, a pendant vane, a horizontal
by said car for holding said vane in an advanced posi
pivotal vane mounting member movable with said car
door connected to said vane at the upper portion of said 35 tion during other portions of upward and downward move
ment of said car door.
vane, said vane having a lower portion for engagement
8. Elevator car operated hatchway door actuating
with said parts of said abutment member for the posi
mechanism for a vertically slidable hatchway door in a
tioning of said hatchway door upon movement of said
hatchway having an elevator car therein comprising a
car door, and interengaging members carried by said vane
and said car including a ?xed guide on a ?xed portion of 40 vertically elongated abutment member mounted on and
projecting from the hatchway door, said abutment mem
said car ‘and a projection on said vane engaging said
ber having force applying parts releasable upon the ap
guide for advancing said vane upon a portion of the
plication of a predetermined force thereon, said car hav
movement of said car door in an upward direction and
ing a vertically slidable door mounted thereon, a pendant
for retracting said vane upon a portion of the movement
hatchway door, said ‘abutment member having force ap
5. Elevator car operated hatchway door actuating
45 vane, a horizontal vane mounting pivot at a ?xed location
on said car door connected to said vane at the upper
mechanism for a vertically slidable hatchway door in a
portion of said vane, said vane having a projection at the
of said car door in a downward direction.
lower portion thereof engageable with said parts of said
abutment member for moving said hatchway door, a pin
tically elongated abutment member mounted on and
projecting from the hatchway door, said abutment mem 50 extending from said vane, a ?xed guideway mounted on
hatchway having an elevator car therein comprising a ver
ber having force applying parts releasable upon the ap
plication of a predetermined force thereon, said car hav
ing a vertically slidable door mounted thereon, a pendant
vane, a horizontal vane mounting pivot at a ?xed loca~
the car and engageable by said pin for advancing said
projection to abutment member engaging position upon a
part of the upward movement of said car door and for
retracting said projection upon a portion of the downward
tion on said car door connected to said vane at the upper 55 movement of said car door, ‘and a locking lever carried
portion of said vane, said vane having ‘a projection at the
by said car for holding said vane in an advanced position
lower portion thereof engageable with said parts of said
abutment member for moving said Ihatch-way door, a pin
of said car door, said locking lever having a notch for
during other portions of upward and downward movement
engagement by said pin for holding said pin and locking
extending from said vane, ‘and a ?xed guideway mounted
on the car and engageable by said pin for advancing said 60 said vane.
projection to abutment member engaging position upon
References Cited in the ?le of this patent
a part of the upward movement of said car door and for
retracting said projection upon a portion of the downward
UNITED STATES PATENTS
movement of said car door.
‘6. Elevator car operated hatchway door actuating 65
mechanism for a vertically slidable hatchway door in a
hatchway having an elevator car therein comprising a
vertically elongated abutment member mounted on and
projecting from the hatchway door, said abutment mem
ber having force applying parts releasable upon the ap 70
plication of a predetermined force thereon, said car hav
ing a vertically slidable door mounted thereon, a pendant
1,243,924
1,425,332
1,494,061
1,526,059
1,876,438
Douse ________________ __ Oct. 23,
Packard _____________ __ Aug. 8,
Ohristiansen ___________ .__ May 113,
Fulghum ___________ __ Feb. 10,
Werner _____________ __ Sept. 6,
1,972,258
1917
1922
1924
1925
1932
Boyle _______________ __ Sept. 4, 1934
2,499,979
Smith ________________ __ Mar. 7, 1950
2,633,932
Clift ________________ __ Apr. 7, 1953
216634436
Bowser _____________ __ Dec. 212. 1953
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