close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2119000

код для вставки
May 31, 1938.
A. ASHKENAS
'EXTENSICN TABLE
25119900
_
I
Filed Feb. 20, 1937
6);».
2 Sheets-Shea’;
a2/lvlunlv
\
a
.
2
1k. ,
.\(5
"KI
B. /
Y,
0
9
I
34 33 30
6
9
e
/
\
27
e
Am
, 4
.n
M
HwAN
wMmm.WWR.
W 53
\ May 31, 1938.
A, ASHKENAS- '
2,119,000
EXTENSION TABLE
Filed Feb. 20, 1937
2 Sheets-Sheet 2
A51€AHAM49HKBVA2
INVENTOR.
ATTORNEY
-
Patented May 31, 1938
2,119,000
UNITED STATES PATENT OFFICE
2,119,000
EXTENSION TABLE
Abraham Ashkenas, Sierra Madre, Calif.
Application February 20, 1937, Serial No. 126,827
2 Claims.
This invention relates to extension tables in
which extension leaves, when not in use, are re
tracted and supported under the main top‘ sec
tion of the table, and when desired for use are
5 drawn out from under said top section and ele
vated into alignment with and maintained
against the ends of said top section.
The general object of the invention is to pro
vide an improved extension table whereby the
10 extension leaves when in extended position, will
be supported ?rmly on the leg-supported frame
of the table, and not on the top of the table, and
will be maintained in perfect alignment with the
main top section of the table.
15
A more particular object is to provide an ex
tension table in which a spring will be brought
under tension only when the extension leaves
have been drawn out nearly to their extended
position, to hold the leaves in their extended
20 position against the ends of the main section of
the top of the table, thus enabling said leaves to
be easily drawn out from under the main top
section into their extended position.
Other objects and advantages will appear
25 hereinafter.
With the above and other objects in view, the
invention consists in the novel and useful pro
(Cl. 311—56)
Figure '7 is a fragmentary cross section taken
on line 1-1 of Figure 4,
V
Figure 8 is a fragmentary cross section taken
on line 8-8 of Figure 9 of a modi?cation of my
invention,
Figure 9 is a fragmentary longitudinal section
taken on line 9—9 of Figure 8,
Figure 10 is a perspective of one of the sup
porting runners and hooks for the extension
leaves, and,
Figure 11 is a perspective of a modi?cation of
one of the supporting runners for the extension
leaves.
b-1
Referring more particularly to the drawings,
in which corresponding parts are designated by 1;
the same reference characters in all of the ?g
ures, I designates the legs, 2 the top supporting
frame, 3 the main top section, and 4 the ex
tension leaves of my extension table.
The top supporting frame 2 comprises two 20
side bars 5, two end bars 0, and two intermediate
cross bars 1, the side bars and end bars being
secured at their ends to the legs i and said cross
bars being secured at their ends to the side bars
5 and at their upper edges to the under side of 9,5
the main top section 3, in spaced relation to said
end bars 6, respectively, and to each other.
vision, formation, construction, association, and
Spacing plates 8 are secured on the upper edges
relative arrangement of parts, members and fea
of the side bars 5, respectively, by screws 9, and
the main section 3 of the table top is secured 30
30 tures, all as shown in a certain embodiment in
the accompanying drawings, described generally,
on the upper side of said spacing plates 8 by
and more particularly pointed out in the claims.
In the drawings:
screws I0, which plates space said top section
Figure l is a side elevation of my table with
35 the lower portion of ‘its legs. broken away, and
showing in full lines one of the extension leaves
in extended position and the other leaf in re
tracted position, and in dotted lines said other
leaf in extended position,
40
Figure 2 is a horizontal section of my table
taken on line 2—-2 of Figure 1 in the upward
direction as indicated by the arrows,
Figure 3 is a fragmentary longitudinal section
of my table taken on line 3—3 of Figure 2, but
45 showing one of the extension leaves in its re
tracted position under one end of the main sec
tion of the top of the table,
Figure 4 is a fragmentary longitudinal section
of my table taken on line 3-3 of Figure 2, and
50 showing one of the extension leaves in extended
position,
Figure 5 is a fragmentary longitudinal section
of my table taken on line 5-5 of Figure 2,
Figure 6 is a fragmentary cross section taken
55 on line 6—6 of Figure 5,
above the upper edges of the frame 2 at a dis
tance su?icient to permit the extension leaves 4
to be retracted between the upper edges of said 35
frame and to the under side of said top section,
and said spacing plates being shorter than the
length of said top section and said frame to per
mit said leaves to be retracted, as aforesaid,
against their ends, which limits the retraction 40
of said leaves with their outer edges ?ush with
the end edges of said top section, as illustrated
in Figures 1, 2, 3, and 5.
Each of the extension leaves 4 is secured to the
upper edges of a pair of slide bars H at the for- 45
ward ends of said bars, which are slidably
mounted in Vertical slots l2 and I3 in an end bar
6 and a cross bar ‘I, respectively, of the top» sup
porting frame 2, the slots I2 being provided with
auxiliary slots 14 in one of their side Walls for ,50
the purpose hereinafter described. A rear por
tion of the lower edges of said slide bars H is in
clined downwardly in'the rearward direction of
said bars. and forms cam surface l5 for engaging
the lower ends of the slots I3 in said cross bar ‘I 55
v
2
2,119,000
for raising the rear portions of said bars 4, when
said leaf is drawn out from under the main top
section 3 into its extended position. Pins I6
project from one side of said slide bars II for
engaging a cross bar 'I and limiting the outward
sliding movement of said slide bars and the
extension leaf 4, as illustrated in dotted lines in
Figure 4 of the drawings. Handles H are se
cured to the under side of the leaves 4 near their
outer edges to be grasped by one’s hand for draw
ing out said leaves into their extended positions
or for retracting said leaves under the ends of
the main top section 3 of the table.
Runners I3 are secured on the slide bars I I for
sliding onto the upper edges of the end frame
bars 6 to support the leaves 4 when said leaves
are drawn out from under the main top section 3
leaves are drawn out from under said top section
and elevated into their extended positions, as il
lustrated in Figure 2 of the drawings. Each
spring 33 is secured at its outer end, at 34, to the
under side of a leaf 4', and at its inner end to a
cross pin 35, and the spring extends through an
opening 36 in an end bar 6 of the table top sup
porting frame 2 into a horizontal channel bar
31 extending between said end frame bar and
the nearest cross frame bar ‘I, the ends of said
channel bar being secured to said frame bars 8
and 'I as illustrated in Figures 2, 5 and 6 of the
drawings.
In the modi?cation of the runner, illustrated
in Figures 8, 9 and 11 of the drawings, the run
ner, designated as 40, has no catches 28 or chan—
nel member 28, but comprises a single vertical
and elevated into their extended positions, as il
side wall 4| and a horizontal shoe 42 extending
lustrated in Figures 2, 4, and 7 of the drawings.
An auxiliary holding means I9 is also provided
for holding each leaf 4 from the main top section
3 of the table in perfect alignment with said top
section, with the upper surface of the said top
section, and to relieve the upper edges of the end
outwardly at right angles from the lower edge of
said side wall, there being a pair of screw holes
frame bars 6, as much as posible, from wear of
the runners I8 on said bars.
Each of the runners I8 comprises'an inverted
channel member 23 and a runner shoe 2I, out
standing from the lower edge of one of the side
walls 22 of said channel member, the upper wall
23 and the other side wall 24 of said channel
member being shorter in length than said side
wall 22 and shoe 2!) which are of the same length,
as clearly shown in Figure 10 of the drawings.
The side walls 22 and 24 of the channel member
23 of each runner I8 are provided with screw
holes 25, and said channel member is ?tted over
the upper edge of a slide bar II with its side
walls 22 and 24 ?tted against the sides of said
bar and its upper wall 23 spaced a short dis
tance above the upper edge of said bar, in which
position the runner IB is secured on said bar
by screws 26 driven through said screw holes
25 into said bar.
The auxiliary holding means I9 for each leaf
4 comprises a pair of keeper plates 21 secured to
the under side of the main top section 3 of
the table, and catches 28 on the channel members
20 of the runners I8 on the pair of slide bars
I I on which the leaf is secured- Each keeper
plate 21 extends across a recess 29 in the under
side of the main section 3 of the table top and
is secured at its ends to said top section by
screws 30. The catch 28 of the channel member
20 of each runner I8 is formed in said channel
member by slots 3! extending longitudinally in
the side walls 22 and 24 of said channel mem
ber from the short end of the upper wall 23 of
said channel member, the other end of said
60 upper wall and side wall 24 coinciding with one
end of the side wall 22 and shoe 2I of the runner
I8, as best shown in Figure 10 of the drawings.
The lower edges 32 of the catches 28 are in—
clined slightly in an upward direction to the
65 short end of the upper wall 23 of the channel
members 20 of the runners I8 so that when said
catches enter the recesses 29 and are slid over one
edge of the keeper plates 21, the leaves 4 will be
drawn upwardly slightly until the upper surface
70 of said leaves are flush with the upper surface
of the main top section 3, as illustrated in Fig
ure 4 of the drawings.
Springs 33 are provided for holding the leaves
4 with their inner edges against the end edges
TB of the main top section of the table, when said
43 in said side wall near the ends thereof, re
spectively, and a pair of prongs 44 struck out of
said side wall, between said screw holes from
the inner edge of said shoe 42, and bent down
from the inner side of said side wall at right
angles thereto and parallel to said shoe so that
they extend from the inner side of said side wall.
The side wall M is ?tted to one side of a slide
bar I I and the prongs 44 driven into said bar,
while screws 45 are driven through the screw , .
holes 43 into said bar to secure the runner 45
on said slide bar.
The operation, uses and advantages of my
invention are as follows:
The extension leaves 4 when not in use are
retracted under the ends of the main section 3
of the top of the table, as illustrated at the
right end of the table‘in Figures
2, 3 and 5,
in which position of the leaves the catches 28
are disengaged from the keeper plates 21 and 40
the forward ends of the inclined lower cam edges
iii of the slide bars II are adjacent the rear
sides of the frame cross bars ‘I, as shown in
Figure 3, while the springs 33 are retracted and
positioned entirely within the channel bars 3?,
except for their outer ends which extend through
the openings 36 in the end frame bars 6 to their
points of connections at 34 with said leaves 4,
as shown at the right of Figures 2 and 5 of the
drawings.
When it is desired to extend the top of the
table the leaf handles i‘! are grasped by one’s
hands and the leaves 4 drawn outwardly from
under the main section 3 of the table top, the
runner shoes 2i passing through the auxiliary
slots I4 in frame end bars 6, until the rear edges
of said leaves are beyond the ends respectively of
said top section 3 and the catches 28 are beyond
the forward edges of the keeper plates 2'l, dur
ing which operation the lower inclined cam edges 69
1 5 of the slide bars II engage the lower ends
of the slots I3 in the frame cross bars TI, and
raise the rear ends of said slide bars against the
under side of the top section 3, while the spring
cross pins 35, near the end of the extension
movement of the leaves engage the inner sides of
the frame end bars 6 at opposite sides of the
spring openings 36, and cause the springs 33 to
be expanded. The leaves 4 are then raised into
alignment with the table top section 3 and until 70
the forward ends of the slide bars II engage the
under side of said table-top‘ section and the catches
28 enter the recesses 29 in the under side of said
top section. The outward pulling force on the
leaves 4 is then relieved, and the expanded springs 75
2,1 1 9,000
33 are allowed to contract to draw said leaves,
slide bars ll, runners I8 and catches 28 back
wardly, until the rear edges of the leaves engage
the ends, respectively, of the main top section 3,
the runner shoes 2! rest upon the upper edges of
the frame end bars 6, and the catches 28 engage
the upper forward edges of the keeper plates 21,
the lower inclined edges of said catches cam
ming against said upper forward edges of said
10 keeper plates and drawing the leaves 4 upwardly
slightly until their upper surfaces are ?ush with
the upper surface of the main top section 3 of the
table, in which position the parts are held under
tension by the springs 33, as illustrated ‘at the
15 left of Figures 1 and 2, and in Figure 3.
When it is desired to retract the leaves to
shorten the table top, the leaf handles I‘! are
grasped by one’s hands and the leaves 4, slide
bars II, runners i8, and catches 28 are drawn
20 outwardly and lowered until the lower edges of
said slide bars rest upon the lower ends of the
slots 12 in the frame end bars 6, in which position
of the bars the leaves rest forwardly of and be
low the main top section 3 of the table, the
catches 28 are disengaged from the keeper plates
27 and rest below the under side of said top sec
ticn, and the runner shoes 2| are forwardly of
and in alignment with the auxiliary slots 14 of
the slide bar slots l2. The outward pulling force
30 on the leaves 4 is then relieved, and the expand
ed springs 33 allowed to contract and apply a
backward pulling force to the leaves, while the
leaves are pushed inwardly under the main top
section 3 of the table, the runner shoes 2| pass
ing through the auxiliary slots M in the frame
end bars 6 and the inclined lower edges l5 of
the slide bars H allowing the rear ends of said
bars to descend until the leaves 4 are completely
retracted under said top section, with their outer
40 edges coinciding with the outer ends of said top
section, and the slide bars ll, runners l8 and
catches 28 are also completely retracted, as illus
trated at the right of Figures 1, 2, 3, and 5 of the
drawings.
45
3
The extension leaves being supported by the
runners I8 on the frame end members 6, any
load on said leaves is relieved from the main top
section 3 where it is usually sustained in the con
ventional extension table, and my means of sup
porting the leaves thus enables the leaves to sus
tain greater loads and provides a stronger and
?rmer extension table than otherwise.
The springs 33 being brought into action only
when the extension leaves have been drawn out 10
nearly to their extended positions, enables the
leaves to be extended and contracted with less
labor and greater ease than otherwise.
I claim:
1. In an extension table, a supporting frame 15
including an end bar, a main top section, an ex
tension. leaf, means for supporting said leaf in
its extended position beyond said top section, a
spring secured at its forward end to said leaf
and extending through an opening in said end bar, 20
and a cross pin secured to the rear end of said
spring for engaging said end bar only when said
leaf is drawn out nearly to its extended position
for causing said spring to be expanded for holding
said leaf against the end of said top section, when 25
said leaf is in its extended position.
2. In an extension table, a supporting frame,
a main top section, a pair of slide bars mounted
in said supporting frame, an extension leaf
mounted on said slide bars, runners mounted on 30
said slide bars, respectively, each of said run
ners comprising a channel member, a shoe out
standing from the lower edge of one wall of said
channel member, and a catch formed in the upper
portion of said channel member, the channel 35
members of said runners being ?tted over the
upper edges of said slide bars, respectively, and
secured to said slide bars, the shoes of said run
ners being arranged to engage said top frame for
supporting said leaf in its extended position, and 40
keeper plates secured to the under side of said
main top section to be engaged by said catches
when said leaf is in its extended position.
_
My table is used as a conventional extension
table for dining rooms, and may be used for other
purposes.
ABRAHAM ASHKENAS.
45
Документ
Категория
Без категории
Просмотров
0
Размер файла
558 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа