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Патент USA US3076696

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Feb. 5, 1963
Filed June 29, 1960
2 Sheets-Sheet l
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Feb. 5, 1963
Filed June 29, 1960
2 Sheets-Sheet 2
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United States Patent "
‘Patented Feb. 5, 1963
door ?exes and being disposed for rolling movement in
Clarence H. Warlick, 131 N. 83rd E. Ave., Tulsa, Okla.
Filed June 29, .1960, =Ser..N0.'39,'570
-1 Claim. (Cl. 312w297)
The present invention relates to slidihgdoor cabinets,
more particularly of the ?exible door type.
It is an object of the ‘present invention toprovide sliding
door cabinets in which the operation of opening the door
track ‘means 9.
‘Upon door closing movement, ‘when the door slides
across the “front of the cabinet to the right as seen f'in
' FIGURE 1 along front track'run 11, means are provided
for releasably locking the door in closed position.
Speci?cally, a pair of oppositely extending detents 23Yis
provided one adjacent the ‘top and one adjacent the bot
tom of the end slat 19, and coil compression springs 25
10 continuously urge detents 23 away from each other.
clined cam tracks 27 are provided which ‘converge in the
direction of door closing movement and are spaced from
bumpers 29 at the top and bottom of ‘the door to leave
a gap between the highest ends of cam tracks 27 and
Another object of the present invention is the provision
of sliding door cabinets of the ?exible door type'in which
the tendency of the door to buckle and bind during door
15 bumpers 29. Upon door closing movement, with detents
opening movement is eliminated.
23 urged away from each other by springs 25, the
Still another object of the present invention is the pro
vision of sliding door cabinets having a front opening of
detents engage and ride upon cam tracks 27 and are thus
maximum area’ and a usable interior of maximum volume,
relative to the size of the cabinet.
Finally, it is an object of the present" invention to pro
vide sliding door cabinets that ‘will be relatively simple
‘and inexpensive to construct, easy and dependable to op
crate with a minimum of effort, and rugged and durable
pressed toward each other against the action of springs
in use.
25. However, upon riding over cam tracks 27, detents
23 spring back to their fully spaced apart position, where
they are held between cam tracks 27 and bumpers 29.
Thus, bumpers 29 not only limit door closing movement
but also provide with cam tracks 27 latch assemblies
for releasably retaining detents 23 in a closed-door posi
Other objects and advantages of the present invention
will become apparent from a ;consideration_ of the follow
‘Means are provided for releasing detents 23 from se
ing description, taken in connection with the accompany‘
curement between tracks 27 and bumpers 29, comprising
ing drawings, in which: ‘
FIGURE 1 is a horizontal sectional viewof one embodi
a rotatable yoke 31 mounted for rotation about a hori
zontal axis on the end slat 19 and turned by a handle 33
ment of sliding door cabinet according to the present in
which extends outside the cabinet. A pair of pull cables
vention, with one end broken away;
FIGURE 2 is an elevational rear viewaof the embodi
ment of FIGURE 1;
FIGURE 3 is a fragmentary elevational view from
35 is mounted one on each of the opposite ends of yoke
31 for movement in opposite directions upon turning of
handle 33. These pull cables are attached at their other
ends to detents 23 simultaneously to withdraw detents 23
within the cabinet showing the door closing and locking 35 from their locking recesses so as to release the door for
door opening movement.
‘FIGURE 4 is a vertical cross-sectional view taken
Means are provided for continuously urging door 17
through the door and showing the door mounting means
open, comprising a pair of vertical tracks 37 and 39.
and track means;
Track 37 is secured to cabinet 1, while track 39 is secured
FIGURE 5 is a vertical sectional view showing a 40 to the slat 19 at the end of door 17 opposite handle 33.
further embodiment of the present invention;
A scissors linkage 41 includes a pair of bars 43 pivotally
FIGURE 6 is a fragmentary enlarged view of a por
interconnected adjacent their midpoint-s for vertical swing
tion of FIGURE 5 adjacent the upper left thereof; and
ing movement about a horizontal axis 45. A coil torsion
FIGURE 7 is another enlarged fragment of FIGURE 5
spring 47 continuously urges bars 43 from their full line
45 position in FIGURE 2 toward their broken line position
from adjacent the lower right thereof.
Referring now to the drawings in greater detail, there
in FIGURE 2. Spring 47 is coaxial with axis 45 and
is shown a sliding door cabinet indicated generally at 1
engages at each end with a different one of the bars
43. The upper ends of bars 43 ride freely vertically in
and having a front wall 3 which is broken away over
most of its extent so as to provide a front opening for the
tracks 37 and 39, while the lower ends of bars 43 are
cabinet. Within the cabinet, an arcuate, continuous mem 50 ?xed to the lower ends of tracks 37 and 39. In this way,
the ends of bars 43 associated with track 39 always re
ber, for example of sheet metal, provides a‘rear wall 5 and
main in vertical alignment with each other, even though
the ends of bars '43 associated with track 37 are spaced
variable distances from the ends of bars 43 associated with
sides of one end wall 7 and behind rear wall 5 so as to
provide a front track run 11, a rear track run 13, and a 55 track 39.
A modi?ed form of the invention is shown in FIGURE
transfer track section 15 shown at the left side of FIGURE
5, in which the same reference numerals, but bearing
1. Track means 9 are in the form of superposed, verti
prime characters, are applied to the same parts as in FIG
cally spaced apart channel members opening toward each
URES 1 through 4, or their equivalents. While the
A'?exible door 17 is provided which moves horizontally 60 embodiment of FIGURES 1 through 4 was a horizontally
a pair of opposite end walls 7. Horizontal track means
9 extend across the front of the cabinet, along the outer
to‘ open or close the front of the cabinet.
Door 17 is
comprised of a plurality of vertically extending slats 19
each pivotally interconnected at its vertical side edges
to its immediately adjacent neighboring slats 19 for rela-‘
tive swinging movement about a plurality of vertically
disposed, parallel, closely spaced axes. Thus, door 17
may twist and bend in horizontal planes about the vertical
axes, but not otherwise. Each slat 19 is provided with
rollers 21 at its opposite ends, the rollers 21 being
sliding door, the embodiment of FIGURES 5 through 7
is a vertically sliding door.
The embodiment of FIGURE 5 is characterized by a
pair of sprockets ‘49 coaxial and horizontally spaced apart
and each disposed in a vertical plane parallel to the
vertical plane of the other. The outer peripheries of
sprockets 49 are notched for the reception of the ends
mounted on the slats for rotation about vertical axes
of the axles about which the slats 19' of door 17’ rotate.
Sprockets 49 are idler sprockets.
At the closed door position shown in the lower right
of FIGURE 5 and in FIGURE 7, a latch 51 is provided
coincident with the vertical axes about which the ?exible
which is spring-urged toward closed position and which is
released by manipulation of the latch handle so as to
release the door for door opening movement.
The door opening mechanism corresponding to the
mechanism 37—47 of the preceding embodiment is dis
posed behind rear wall 5’ and includes a vertical tube 53.
Tube 53 is slotted at its front and has a piston 55 verti
cally slidable therein, piston 55 having a piston hook 57
which extends tothe front through the slot of tube 53. .
A ‘coil. tension's‘pring 59 continuously urges piston, 55 '
From a consideration of the foregoing disclosure, it will
be obvious that all of the initially recited objects of the
present invention have been achieved.
It is to be understood that the present invention is to
be accorded a range of equivalents commensurate in scope
with the advance‘, overv the prior art.
What is claimed is:
. ,
A cabinet havinga rear wall and a ?exible door, track
means mounting the door for movement along a path
Spring 59 is secured at one end to piston 10 across the front of the cabinet in one direction and about
‘ an arcuate path at an end of the cabinet and simultaneous
55 and at its other end to the bottom of the cabinet.
‘ downward.
ly behind the rear wall in the other direction, and a pivotal
Piston hook 57 on piston 55 engages in a socket 61 on
, linkage disposed behind the door and including a pair of
that slat 19' which is at the »opposite end of the door
links 'pivotally interconnected intermediate their lengths
from slat that engages with latch 51. Thus, spring 59 “
continuously urges door 17' open, that is, continuously 15 in scissors relationship for movement relative to each
urges the door to move in such a direction as to turn
other in a plane parallel to therear wall, the linkage-being
mounted at one end on a rear end portion of the cabinet
sprockets 49 counterclockwise as shown in FIGURE 5.
It is very important to note, however, that the tension of . ‘ and at'the other end on the door, and means continuously
yieldably urging the linkage to pivot relative to the
spring 59 is applied to the door only until socket 61 is
about half way down the rear track run 13’, or a little 20 cabinet and the door in a plane parallel to the rear wall
‘thereby to move the door along said path.
farther down than half way. By the time spring 59 no
longer exerts door-opening movement, at least about half
References Cited in the ?le of this patent
of the weight of the door is to the left of the axis of
sprockets 49 as seen in FIGURE 5. This means that from
then on, the portion of the door behind the rear wall 5’ 25'
balances or more than balances the weight of the door on
the other side of the axis of sprocket 49 as seen in FIG
URE 5. Hence, the door opening movement of the em~
bodiment of FIGURES 5 through 7 is assisted ?rst by a
spring and then by gravity. By contrast, in the embodi- 30
ment of FIGURE 1, the assistance is entirely by spring
Ba‘taille ______________ __ Mar. 8, 1887
Vansant ____________ __ Sept. 20, 1932
Switzerland __________ __. Mar. 2, 1913
France ______________ __ Feb. 4, 1929
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