close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2108816

код для вставки
Feb. 22, 1938.
A. H. HQLLAND ET A1.
2,108,816
REFECTORY TABLE
Filed Nov. 19, 1954
4 sheets-sheet 1'
Feb. 22, 1938.
2,108,816
A. H. HOLLAND ET AL
REFECTORY TABLE
Fißed NOV. >21.9, 1934
v
4 Sheets-Sheet 2
mm),
A
A
n
m m.
, s»
,
www3
RQJRvÑ
D"N,
T\
„MKM..
ww
.\mßmmMuMUN.
ml
N
Feb., 229 193.
~ A. H. HOLLAND Er A».
'
' A
2108,36
REFECTORY TABLE
Filed Nov. 19, 19.34
_4 Sheets-Sheet‘â
________,____...____..._______
V
L
'.l
Z7
fr
` _.;íî _______ __
\
___-_____r
ÉL
_... _ _____T ___-___ _L_
___-_ __ ____ _____4.__ ...1V-____
Feb. 22, 1938)4
A. H. HOLLAND ET AL
REFECTORY TABLE
Filed Nov. 19, 1934
4 Sheets-Sheffl 4
ALFRED H.HNDHOLLAND
Eoeafa-r H. HOLLAND
APatented Feb. 22, 1938
AT
UNITED STATES
T 0F FIC E
2,108,816
REFECTORMY TABLE
Alfred H. Holland and Robert A. Holland, Win“
stun-Salem, N. C.
Application November 19, 1934, Serial No. '753,716
1 Claim. (Cl. 311-56)
’This invention relates to an article of furni
‘ture Íand more vespecially to an extension table
Vequipped with movable extension leaves for ex'tending the ,length of the table.
,
AIn vmany forms of extension tables heretofore
used'the additional leaves have been inserted in
4„the ‘central lportion ofthe table, thereby making
Vit necessary to make the end leaf portions in
movable sections in order to accommodate the
“10 ï'additional leaves. It is, therefore, an object of
this 'invention to provide additional table leaves
which are slidably mounted beneath the ends of
thevmain table top and which may be withdrawn
„
Vwhen it is desired to extend the length of the
*"15 table.
VIt is a further object of this invention to pro
vide an extensible leaf for a table, desk or the
like, with means mounted on said leaf for auto
‘matically raising and holding the leaf ñush with
¿.20 ’the-top -portion of the table. Marinai means are
“also >provided for releasing the extension leaf' so
that it may again be inserted in a suitable recess
disposed‘beneath the end of the table top.
‘
While this Vinvention is particularly adapted for
'x25 use on tables, it is to be understood that the
f'principle is equally applicable to writing desks,
"ironing boards, or in fact, to any article of fur
niture where a leaf is desired to be Withdrawn
from extended position when not in use.
.Some of the objects of the invention having
been‘stated, other objects will appear as the
»description proceeds when taken in connection
with the `accompanying drawings, in which:
‘Figure 1 is an isometric View of a table made
n'35 in accordance with the invention;
'Figure’2 is a top plan View of the table;
Figure `3 is a longitudinal sectional View taken
--along line 3-3 in Figure 2 showing the table
t
„leaf on one end in an extended position and the
"ml-table leaf on the other end in a closed position;
Figure 4 is Va transverse sectional View taken
along line 4--4 in Figure 2;
Figure 5 is a longitudinal sectional view taken
lialong line 5-5 in Figure 2 showing one end of
“wüthe recesses beneath the table for receiving a
«table leaf when in closed position;
Figure 6 is an isometric View of a portion of
*an «inverted table leaf support showing means
Figure 9 is a view- similar to Figure 8 but show~
ing the table leaf in closed position;
Figure 10 is a transverse sectional View taken
along line I ß-iû in Figure '7;
Figure 1l is a detail sectional View taken along
line iI-ii in Figure '7;
Figure 12 is a detail sectional View taken along
line I2-l2 in Figure 7;
Figure 13 is an isometric view of one of the
`wedges which is adapted to be mounted `on a
table leaf support for holding the table leaf in
extended position;
`
Figure 14 is an isometric View of a modified
form of table leaf support which is somewhat
similar to the form used in Figures 1 to 6 inclu
Referring more speciñcally to the drawings,
the numeral Iii denotes an extension table which
is supported by legs il, l2, I3 and Iâ. The upper
ends of legs II and I2 are secured together by
means of a transverse member i5, and the upper
ends of legs i3 and I4 are likewise secured to
gether by means of transverse member i5. A.
similar longitudinal member Il is connected to
the upper ends of legs I i and I3, whereas, mem
ber i8 connects the upper ends of legs i2 and
I4. Suitable braces I9 are used to connect the
members I5, It, I1 and I8 to each other, and
these braces are also secured to the upper ends
of legs II, I2, I3 and lli.
Y
«
Fixedly mounted on top of members Il and Ill
are filler members 25 and 25 respectively which,
in turn, have secured to the upper >side thereof
a conventional table top 2l. By placing the ñller
members 25 and 26 beneath the central portion .
of the table top 2l, and cutting them shorter
than the length of the table top, suitable recesses
«28 and 28’ are provided between the lower side
of the table top and the upper side of members
il and‘IS inclusive for the reception of the ex
tension leaves when in closed position.
Transverse member I6 has suitable notches 3i)
`cut therein (Fig. 3) , in which are slidably mount
ed extension leaf supports 3l and 32. These sup~
ports are identical in all respects except support
32 is shown in the drawings as being opposite
hand to support 3|, and, therefor-e, a description
of one will suffice for the other, since the same
elements of construction are used in both. Se
cured to the upper ends of members 3l and 32,
for locking the support in elevated position;
‘to 'Figure 7 is a top plan View with portions broken by any suitable means such as screws 33 and 33a,
'away of a portion of a `table'with a modified Vis an extension leaf 34 which is shown in extended
' position in the right-hand portion of Figures l.,
.form of the invention applied thereto;
’Figure'ß .is a longitudinal sectional view taken
m55' ‘along line‘ 8-’-8 `irr‘Figure "7;
15
sive.
2 and 3. The left-hand end o-f supports 3l and
'32 are slidably -mounted in U-shaped stirrupî
0
2
2,108,816
members 35 and 36, said stirrup members being
top 2l' since the springs 58 normally force the
secured to the lower side of table top El by any
wedges 48 in notches 3€) at all times.
The left-hand portion of the table is similar in
all respects to the right-hand portion which has
been just described, and similar reference char
suitable means such as screws 3'! and 323 respec
tively.
Secured in the left-hand end of each of sup
ports 3| and 32 is a bracket 45 having an inclined
portion 46 which is adapted to engage the bot
tom of U-shaped members 35 and 36 and raise
the left-hand end of supports to a horizontal
10 position when the leaf 34 is being drawn to an
extended position. It should be noted that the
left-hand en-d of supports 3| and 32 also have
projections 41 integral there-with which limits
the movement to the right of the leaf 34 when
it has reached its proper position. ïn Figure 2
these projections are shown engaging the stirrups
35 and 36 when the leaf 34 is in extended posi
tion.
Figure 6 shows an enlarged inverted View of
the right-hand end of support 3| with the wedge
48 and its associated parts in a released posi
tion. The supports 3l and 3‘2 are L-shaped in
cross-section an-d have flanges 5u and 5l integral
therewith. The flange 5G holds -the upper por
tion of wedge 48 in position (Fig. 3), while the
ñange 5| is adapted to slide in a suitable groove
52, which groove is cut in the side of wedge 48,
and to hold the wedge in the proper position with
relation to the support at all times. Secured to
30 the end of wedge 48 is an angle member 53 by
any suitable means such as nails or screws 54.
A rod 55 has one end pivotally secured to the
outstanding leg of angle 53, and the central por
tion of said rod is slidably mounted in the out
standing leg of a second angle member 55 which
is secured to the interior of L-shaped support 3|
by any suitable means such as welding.
The left-hand end of rod 55, as shown in Figure
6, is bent substantially at right angles and pene
40 trates a slot 57 in the end of support 3|. ln order
to normally force the wedge 43 toward the left
hand end of support 3| (Fig. 6), one end of ten
sion spring 58 is secured to angle member 53 and
the other end is secured to angle member 56.
When the inclined portion 38a of the wedge ¿i8 is
not engaging one of the notches 3E! in transverse
member I6, the left-hand portion of rod 55, which
engages the end of slot 5l, acts as a stop to limit
the movement to the left of wedge 43 in Figure 6.
50 (See left-hand portion of Figure 3.)
Suitable blocks 65 and St are secured to the
lower side of leaf 3G by any suitable means such
as screws 6l and 68. These blocks not only con
ceal the ends of supports 3| and 32 but also act
as stops against which one may rest one’s finger
while another- finger is being used to engage the
end of rod 55 to force wedge 4S to the left in
Figure 3 and disengage it from the notch 33 in
which it rests in transverse member l5. When
60 the block is pushed to the left enough to clear
the member i8 the leaf 34 can be lowered and
pushed in the recess 9.8, (Figs. 2 and 5), where
it will assume a position similar to the position
of leaf 34’ in the left-hand end of Figure 3.
65
A suitable cavity S3 is provided in the lower
face of leaf 34 in which one may place the ends
of his fingers when it is desired to move the
leaf to extended position. When the leaf is pulled
70 to extended position from the position shown in
the left-hand portion of Figure 3, the wedge 48
will automatically snap into one of the notches
3l! slightly before the leaf has been raised to the
final elevated position. When the wedges enter,
the leaf will automatically be raised flush with the
acters will apply to like parts with prime nota
tions added.
Figures '7 to 13 inclusive show another modified
form of the invention in which a slightly diiferent
type of support for the extension leaf 34 is used.
In this form, extension leaf 34 is secured on top
of supports ‘i5 and 76 by any suitable means such
as screws l’ß and ‘i9 respectively. These supports
are slida‘oly mounted in suitable notches disposed
in transverse member |6 and the extreme left 15
hand portions of these members are slidably
mounted in similar notches disposed in trans
verse member 8€), said transverse member 80
having its ends secured to the longitudinal mem
bers l? and |8. Each of the members 'l5 and 'I6 20
has a pin 3| in the left-hand end thereof which
is so located that it will engage the side of
member Bil when the extension leaf 34 has- been
pulled to its extreme left-hand position.l These
pins will prevent any appreciable clearance’fromy 25
occurring between the right-hand end of tabletop’
and the left-hand end of the extension leaf 34.
The left-hand ends of these members 15 and 15
aiso have an enlarged portion 82 on the lower
side thereof which serves to raise the left-hand 80
eno'. ci' each support ‘l5 and 75 up to a horizontal'
position when the leaf 34 is in an extended .posi- .
tion.
A suitable groove 83 is cut in the lower side' of
these supports in which is adapted to -fit a tongue
Eli which is integral with the upper side of wedge
|35, (Fig. 13). It is seen that by providing a
tongue of this type (Fig. 13), that when it en
gages a groove 33 that the wedge 85 cannot be
come disengaged from the groove except by slid 40
ing out the right-hand end oi' the groove as
shown in Figures 7, 8 and 9.
Wedge 8E, which is identical to wedge 85, is
disposed in the lower side of support i6 and each
of these wedges has a beveled surface 33 on the 45
leading edge thereof which is adapted to engage
the notches 33 which are cut in the upper end of
transverse support I6 when the table leaf 34 is
in extended position.
`
A transverse rod 89 is adapted to penetrate the 50
wedges 85 and 85, and coniined to the central por- '
tion of rod 85 (Fig. l2), is a U-shaped bracket
Sil which has downwardly extending portions 9|
with slots 92 therein which slots are penetrated
by the rod 89. The collars 93 are ñxedly secured 55
on the rod §39 for confining the U-shaped bracket
9@ in its proper position. Secured to member
9@ as at 35i, is a member |35 which extends to the
right (Fig. 7) and is slidably mounted in lthe
transverse member i3 (Fig. 11). A suitable but 60
ton 96 is secured on the end of rod 95 for“
manipulating the U-shaped bracket which en
gages rod 89.
Each of these wedges S5 and 85 is secured to
one end of a tension spring 38, said tension spring 65
93 having its other end secured to the trans-'i
verse member I6. These tension springs normally
force the wedges 35 and 36 to the right in the
drawings and causes the wedges to act principally
in
except
the same
that manner
Vthe tension
as the
springs
wedgesin¿i5this
in Figure
particu-f' ` 70
lar case are secured to the transverse member
lâ whereas, in Figure 3, the tension spring'y is
secured to the supports. It is seen that by push
ing the button 96, (Figs. 7 and 11), to the left 75
2,108,816
that rod 89 and wedges 85 and 86 will also be
pushed to the left thereby causing the beveled
portions 88 of the wedges to be disengaged from
the notches 30 in the member I6. When this is
done, the table leaf 34 and its associated parts
may be lowered and placed in a closed position as
shown in Figure 9.
Figure 14 shows a support very similar to that
shown in Figures 1 to 6 inclusive, but it should
10 be noted that this is U-shaped in cross-section
instead of L-shaped.
This support |00 has
flanges |0| and |02 which are adapted to engage
suitable grooves |03 disposed in opposite sides
of wedge |04. Wedge |04 has beveled surface
15 |0411 and operates in the same manner as wedge
48 and has an angle member |05 secured there
to by any suitable means such as nails or screws
|06. Pivotally secured to the outstanding leg of
angle member |05 is a rod |01 which has its cen
20 tral portion slidably mounted in a second angle
member |08, said angle member |08 being secured
to the interior of support |00 by any suitable
means such as rivets |09. The right-hand end
of rod |01 is bent substantially at right angles
25 and penetrates the slot ||0 in the side of the
support.
A tension spring | | has one end thereof secured
to the angle member |05 and the other end of the
spring is secured to the angle member |08. This
30 causes the wedge |04 to be pulled to the right at
all times and also causes the wedge |04 to engage
the notches 30 when the leaf is in extended posi
tion. It is seen that the method of releasing the
block |04 from the notches 30, is similar in all
35 respects to the method of releasing the wedge 48.
By providing the inturned flanges |0| and |02,
a more stable support is provided for the wedge
|04 as well as presenting a slightly more finished
appearance, although it has been found in the
cost of construction, that the form shown in
Figures 1 to 6 inclusive, is preferable from a
manufacturing standpoint due to the simplicity
of construction and cost of material.
When the extensible leaves are pulled to ex
position and before they are elevated, the
45 tended
leading ends of the blocks 48, 85 or |04, as the
case may be, are pulled .against the frame of the
table, and when the extension leaf is elevated,
the blocks will move into position and exert a
wedging action to hold the extension leaf in the
same plane as the table top. It should be noted
3
that as the blocks force the slides against the
lower surface of the table top that this results
in causing the extension leaf and top to be in
the same plane, as it is also evident that should
either the top or the extension leaf be warped 5
that there would be still an alignment of the
meeting edges of the top and leaf to cause all
portions of the leaf and the top to be in the same
plane. This would not be true if the upward
movement of the slides were limited by means 10
other than having the slides ñt >against the lower
surface of the table top.
In the drawings and speciñcation there has
been set forth a preferred embodiment of the
invention, and although specific terms are em 15
ployed, they are used in a generic and descriptive
sense only, and not for purposes of limitation, the
scope of the invention being set forth in the
appended claim.
20
We claim:
In a refectory table having a frame and a top
secured to the top of the frame in spaced rela
tion to the top of the frame and providing at each
outer edge .a space for the nesting of leaves, a pair
of slides secured to the lower side of each leaf, 25
and having sliding movement in the frame, the
top edges of the frame having notches therein for
reception of the slides, each slide comprising a
piece of sheet metal bent to form a top and a pair
of sides, the lower edge of one side portion being 30
bent inwardly, a wedge-shaped block member
mounted for sliding movement in each of said
slides below the top thereof and between said
sides, said wedge-shaped member having a groove
in one side thereof into which the said inturned 35
lower edge of one of said side portions is adapted
to project, one of the side portions of each of
said slides having a bracket secured to the inner
surface thereof, a tension spring having one end
secured to the bracket and having its other end 40
secured to said block for normally urging said
block between the slide and the frame when
the leaves are extended, one of the sidewalls of
each of said slides having a slottherein, a rod
secured to said block and slidably penetrating 45
said bracket and being bent laterally .and pene
trating said slot where its end can be engaged to
push said block inwardly to permit lowering of
the leaf.
ALFRED I-I. HOLLAND.
ROBERT A. HOLLAND.
Документ
Категория
Без категории
Просмотров
0
Размер файла
686 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа