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Патент USA US3061271

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Oct. 30, 1962
D. BERLIN 7
3,061,261
CHILD'S JUMPER SEAT
Filed Sept. 28, 1960
2 Shee-ts-Sheet 1
, INVENTOR.»
DANIEL
BERLIN
ATTORNEYS
Oct. 30,1962
D. BERLlN
3,061,261
CHILD'S JUMPER SEAT
Filed Sept. 28, 1960
2 Sheets-Sheet 2
INVENTOR.
DANIEL BERLIN
ATTORNEYS .
United States Patent () "
2
1
A fabric sling seat 34 is mounted on the seat frame
10 by way of side loops 36 snapped around the arms
of the frame member 16 and a loop 38 from a crotch
strap snapped around the rod 26. The back of the
sling seat is formed as an inverted pocket to receive the
U-shaped ball 18, and acts as a yieldabl'e back rest.
The base 12 includes a U-shaped aluminum tube 40
Whose arms are substantially longer and spaced some—
what more than those of the frame member ‘16. At the
3,061,261
CHILD’S JUMPER SEAT
Daniel Berlin, 4424 Paul St., Philadelphia, Pa.
Filed Sept. 28, 1960, Ser. No. 58,932
9 Claims. (Cl. 248-399)
This invention relates to a child’s jumper seat and
particularly to such a seat that is foldable.
It is an object of this invention to provide a new and
improved child’s jumper seat that is foldable.
3,061,261
Patented Oct. 30, 1962
10 forward and rear of the arms of the base tube 40, rubber
Another object of this invention is to provide a new
and improved child’s jumper seat that is convenient to
fold for storage or transport and convenient to unfold
for use.
Another object of this invention is to provide a new
and improved child’s jumper seat that is safe and reliable
in use.
Another object of this invention is to provide a new
cushions 42 ‘are secured. The connecting links 20 and
22 ‘are pivotally connected to the open ends of the base
tube 40. These links 20, 22 are bent forward near the
lower ends thereof so that they have the effect of links
that extend further back thereby to increase the stability
of the :base without a corresponding increase in length.
The connecting link-s 28 and 30 ‘are also pivoted at their
lower ends to the base tube 46 and at points spaced from
the open ends of the base tube 40 silnilarly as the pivot
and improved child’s jumper seat that is economical to
manufacture, effective and safe in use, and that lends 20 points on the seat frame member 16. The links ‘are con
nected inside the arms of the base 40 and outside of the
itself to attractive design.
In accordance with this invention, a child’s jumper seat
is provided that comprises -a seat frame, a base, and means
arms of seat frame 16. Also pivoted to base tube 40,
between the arms thereof and between the forward and
pivoted position of the spring, the brace is positioned
wardly pivoted position. The latch bar 46 is manipulated
rear links, is a U-shaped rectangular spring bar 44, the
resiliently and .foldably connecting the seat to the frame.
This connecting means includes a plurality of linking 25 bent ends thereof extending around the outside of the
arms of the base 40. A latch bar 46 is pivoted to the
means pivotally connected to said base and seat frame
base 40 at the pivot pin of the link 28 and has a notch
so as to permit them to move together and apart gen
cut in the side thereof to latchingly engage the broad
erally parallel, a spring pivoted to the base, and a brace
connected between the seat frame and spring. In one ‘ ‘and narrow edges of the spring bar 44 when in its for~
by a bent offset portion 50.
Connected to the central portion of the spring bar 44
is
a metal strap bent into a hinge loop 52 that rotatably
the base, and, in another spring position, the brace is
receives the apex of a U-shaped wire ‘bail 54. The upper
positioned to permit seat frame and base to have together.
ends of this bail 54 are bent to form horizontally ex
The foregoing and other objects of this invention, vari
tending pins 56 that are pivotally connected .to the upper
ous features thereof, as well as the invention itself both
ends of the rear connecting links 20, 22. These pins 56
as to its organization and mode of operation may be
extend within the arms of the seat frame rnenrber 16 and
more fully appreciated from the following description
each forms a limit stop against which rests the U-bend
when read together with the accompanying drawing, in
24 in each end of the back rest bail 18 when the latter
40
which:
is
erect.
FIG. 1 is a perspective view of a child’s jumper seat
In the assembled condition of the jumper seat, ready
embodying this invention and illustrated in condition
for use, ‘as illustrated schematically in FIG. 3, the seat
for use;
frame 16 and base 40 are in spaced parallel positions.
FIG. 2 is an enlarged fragmentary view taken along
45 Parallel movement between seat 16 ‘and base 40 is guided
the line 2—2 of FIG. 1;
by the link pairs 20, 22 and 28, 30. The spring bar 44
FIG. 3 is a simpli?ed side elevation view of the jumper
is pivoted to its forward position where it effectively is
of FIG. 1 illustrating the relation of parts when the
in
an over-center or toggle-like relation tending to lock
jumper is latched in condition for use;
the linkage bail 54. The latch bar 46 retains the spring
FIG. 4 is a view similar to that of FIG. 3 illustrat
ing the unlatched condition to start folding the jumper; 50 bar 44 within its notch preventing the spring bar from
moving up out of its forward pivoted position.
FIG. 5 is a View similar to that of FIG. 3 illustrating
As the child jumps down ‘and up in the sling seat 34,
the partly-folded condition; and
the seat frame ‘16 falls and rises, respectively. The fall
FIG. ‘6 is a view similar to that of FIG. 3 illustrating
of the seat frame 16 is spring cushioned with a forward
the fully-folded condition.
‘In the drawing, corresponding parts are referenced 55 motion guided by the links 20, 22 and 28, 30. The
transversely to and between the seat frame and spring
to yieldably restrain movement of the seat frame toward
throughout by similar reference numerals.
The baby jumper illustrated in the drawing includes
spring-cushion atcion is due to the over-center relation of ‘
the spring bar, which is ?exed as the link bail 54 pivots
with the links 120 and 28 but transversely thereto. Thus,
a seat frame v10, ‘a base 12, vand a connecting linkage
the link bail 54 is pressed against the spring bar 44, trans
14. The seat frame includes a U-shaped member 16
versely between the seat frame 16 and base 40, to yield
formed as a bent aluminum tube. A wire bail 18 is
ingly restrain the seat frame 16 from falling beyond a
bent in a U-shape to form the frame of a back rest and
limited amount corresponding to the flexing of the spring.
bent at its ends and pivotally inserted and fastened to
To fold the seat, the latch bar 46 is released from
the open ends of the frame member 16 and also to tubular
engagement with the spring bar 44. The seat frame 16
connecting links 20 and 22. The back rest bail 18 is
bent in a U-bend 24 that extends below the frame mem 65 is moved up and back (as illustrated in FIG. 4) to a
position in which the spring bar 44 is pivoted out of its
ber 16 when erect to form a limit stop as noted below.
over-center forward position. By simple manipulation
A wire rod 26 extends between the arms of the frame
of the spring bar '44 or the link bail ‘54, the spring bar
member 16 at intermediate portions thereof and is piv
is pivoted to a rearward position, where the link bail 54
otally fatsened to tubular connecting links 28 and 30.
A plurality of colored counting beads 31 are rotatably 70 is unrestrained to pivot with the links 20 and 28 and
without restraint on the seat frame 16 as it is lowered
and slidably mounted on the rod 26. Between the rod
into folded condition (illustrated in ‘FIG. 6). As the seat
26 and the front of the frame member 16, a plastic tray
frame 16 folds down, the back rest bail 18 also folds
32 is removably attached.
3,061,261
3
down to a compact position (illustrated ‘by broken lines
in FIG. 2).
To unfold the seat, the seat frame 16 is lifted to go
through the above-described steps in reverse process.
The seat frame is raised to the position illustrated in
FIG. 4 in which the spring bar can be pivoted to its
forward position and latched in place by the bar 46 as
illustrated in ‘FIG. 3.
In use, the jumper seat is safe and reliable inasmuch
4
2. A child’s jumper seat as recited in claim 1 where
in said linking members include two links on each side
of the base and seat frame.
3. A child’s jumper seat as recited in claim 2 where
in said base ‘and seat frame are U-shaped members, the
former wider than the latter, said side links being attached
to the outside of the arms of said seat frame and to
the inside of the arms of said base.
4. A child’s jumper seat as recited in claim 2 where
as the child is retained in a position with a low center 10 in the rearward ones of said links on each side are bent
of gravity on a broad ‘base. The jumping of the child
tends to maintain the spring in its latched position and
forwardly adjacent the base end thereof.
prevent accidental folding.
further comprising a latch for retaining said spring in
5. A child’s jumper seat as recited in claim 1 and
The foregoing description is intended to be illustrative
said one position.
and not limiting on the scope of this invention; variations 15
6. A child’s jumper seat as recited in claim 1 where
and modi?cations of the illustrated embodiment will be
in said base and seat frame each include a plurality of
apparent to those skilled in the art.
side arms to which said links are pivoted, said bar spring
What is claimed ‘as the invention is:
being pivotally mounted to said base side arms.
1. A child’s jumper seat comprising a seat ‘frame, a
7. A child’s jumper seat as recited in claim 6 where
base, and means for resiliently and foldably connecting
in said linking bail is U-shaped and with the apex there
said seat frame to said base, said connecting means
of connected to an intermediate portion of said spring
including a plurality of linking members pivotally con
bar.
nected to said base and seat frame to permit parallel
8. A child’s jumper seat as recited in claim 7 where
movement thereof together and apart, a bar spring piv
in said linking members include two links on each side
otally mounted on said base, and a linking bail connected 25 of said base and seat frame, said spring bar is pivoted
between two of said linking members and said bar spring,
to said base between forward and rearward ones of said
said bail being pivoted to said bar spring and movable
links, and the ends of said U-shaped bail are pivoted to
from one side to another of said spring with pivoting
said rearward links.
to different positions thereof, said bail being positioned
9. A child’s jumper seat as recited in claim 6 and
transversely to said parallel movement to be substantially 30 further comprising a pivoted latch bar having a notch
restrained by said spring in one of said different posi
for engaging said spring bar.
tions thereby to resiliently restrain said parallel move
References Cited in the ?le of this patent
ment together, said bail ‘being positioned to be substan
tially unrestrained by said spring in another of said differ
UNITED STATES PATENTS
ent positions thereby to permit said parallel movement
2,927,628
Gill _________________ __ Mar. 8, 1960
together for folding.
2,974,719
McClellan ___________ __ Mar. 14, 1961
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