Note: Descriptions are shown in the official language in which they were submitted.
~Z35165
1 Description
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The invention relates to a perambulator having a frame and
a push bar assembly pivotal connected to the frame on
5 both sides thereof and adapted to be locked at a forward
position and a rearward position.
From practical use there is already known a perambulator
of the type defined above, in which the pivotal mounted
10 push bar assembly is adapted to be locked in each of its
end positions by manually operable hooks pivotal mounted
on both sides of the frame. The hooks are engage able with
bolts secured to the push bar assembly at lateral posy
itchiness This construction of the push bar assembly requires
15 a number of manual operations to be carried out by the user
for pivoting the push bar assembly between its forward
and rearward positions. There is thus a corresponding numb
bier of possibilities that the push bar assembly is not
properly and safely locked at its end position due to
20 faulty operation. There is also the danger of the hoots
becoming disengaged from the bolts during use of the
perambulator, with the result of considerable risk of
accidents being incurred.
25 It is an object of the present invention to provide a
perambulator of the type set forth in the introduction,
which is of simple construction and operation, and which is
adjustable to different riding positions for travel in
opposite directions by simply pivoting the push bar assume-
30 lye between two end positions without requiring additional complicated manipulations to this purpose.
In order to attain this object, the invention provides
that two stop members for limiting the pivotal movement of
35 the push bar assembly are provided on each said of the frame,
a manually operable looking element adapted in its rest
position to prevent the push bar assembly from being moved
from one position to the other being disposed at an inter-
mediate location.
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1 The perambulator according to the invention offers consider-
able advantages over prior art. The pivotal movement of
the push bar assembly is limited at the end positions by
simple stop members, so that the user does not have to
5 lock the push bar assembly in its end positions. Any
accidental pivoting of the push bar assembly from one end
- position to the other is positively precluded by a locking
member disposed between the limiting stop members so US to
prevent in its rest position the push bar assembly from
10 being pivoted in a reliable manner and without the inter-
mention of the user. The danger of the push bar assembly
being released from its respective end positions during
use of the perambulator is thus positively excluded.
15 In an advantageous embodiment of the perambulator, the in-
mention provides that the locking element is adapted to
be displaced transversely of the pivoting plane of the push
bar assembly for the release thereof. As a result of this
provision, the locking element positively and reliably
20 prevents the push bar assembly from being pivoted under
the action of forces transmitted there through to the frame
of the perambulator during use thereof.
According to a further advantageous aspect of the invent-
25 ion, the locking element is secured to a center portion
ox a guide rod connecting the stop members to one another,
so that its end portions project into the pivoting path
of the push bar assembly. This construction ensures a
particularly reliable guidance of the push bar assembly
80 while improving the stability of the stop members and
reducing the danger of injuries by exposed corners and
edges. The centered mounting of the locking element favors
an extremely lightweight and compact construction of the
perambulator.
In another preferred embodiment of the perambulator accord-
in to the invention, the locking element comprises a
plate-shaped member pivotal connected to the frame inter-
mediate the stop members and biased by spring to its rest
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1 position perpendicular to the pivoting plane of the push
bar assembly. This construction is particularly simple and
space-saving. The number of components is reduced to a
minimum, and the danger of faulty handling by an unskilled
5 user is practically eliminated.
In another advantageous embodiment of the perambulator
according to the invention, the locking element is of
U-shaped cross-sectional configuration straddling the
10 guide rod. This construction reliably eliminates the
danger of a child occupying the perambulator getting its
fingers caught in the mechanism with the resultant injury
as the push bar assembly is pivoted from one end position
to the other.
Preferred embodiments of the invention showing further
characteristics and advantages thereof shall now be de-
scribed by way of example with reference to the accomp-
awning drawings, wherein: -
fig. 1 shows a perspective view of a perambulator
its. 2 shows a perspective view of a first embodiment of
a locking element,
fig. 3 shows a perspective view of a second embodiment of
the locking element, and
fig 4 shows a perspective view of a third embodiment of
the locking element.
A perambulator shown in fig. 1 comprises a frame 1 having
a push bar assembly 2 pivotal connected to both sides
thereof. Push bar assembly 2 is mounted for pivotal move-
35 mint between a forward and a rearward position. This pivotal
movement of the push par assembly is limited by stop
members 3 provided on both sides of frame 1. A locking
` element 4 is disposed intermediate of stop members 3.
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1 Shown in fig. 2 is a perspective view of a first embodiment
of locking element lo Two stop members 3 secured to frame 1
are interconnected by a guide row 5. Locking element is
secured to guide rod 5 at a center location thereof.
5 Locking element 4 is of symmetrical design and has a
U-shaped cross-sectional configuration. The legs of this
U-section are dimensioned so as to straddle guide rod 5.
In a top plan view of locking element 4, the two end port-
ions thereof are of substantially triangular shape. The
10 end portion of locking element 4 facing towards push bar
assembly 2 may be laterally displaced for releasing the
push bar assembly, so that the latter can be pivoted to
its other end position. As soon as push bar assembly has
arrived at the center of locking element 4, it starts to
15 ride up on the other end portion thereof to cam it out of
its pivoting path. As soon as push bar assembly engages
the respective stop member 3, the end portion of locking
bar 4 snaps back to its rest position in which it prevents
push bar assembly 2 from being pivoted back to its first
20 position.
Fig. 3 shows a second embodiment of the locking element 4
according to the invention. Two stop members 3 are again
secured to frame 1 for limiting the pivotal movement of
25 push bar assembly 2. The two stop members 3 are inter-
connected by a guide rod 5. Secured to the center portion
of guide rod 5 is a locking element 4 having a wire-like
cross-sectional shape, the end portions of locking element
4 being angularly bent to a substantially triangular con-
30 figuration as seen in a top plan view. The ends of locking element 4 extend through openings 6 formed in guide rod 5.
In its rest position locking element 4 prevents push bar
assembly 2 from being pivoted. Depressing the end portion
of locking element 4 facing towards push bar assembly 2
35 results in the latter being released for pivotal movement.
During such depression, the end of locking element 4 is
guided in the respective opening 6 of guide rod 5. After
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push bar assembly 2 has been pivoted to its other position,
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l locking element 4 returns to its rest position so as to
lock push bar assembly 2 in position.
A third embodiment of the locking element according to
5 the invention shown in jig. 4 comprises a pair of stop
members 3 secured to frame 1. The locking element if disk
posed intermediate of the two stop members 3 comprises a
plate-shaped member pivotal connected to frame 1 with
its longer side. At least one spring 7 is provided for
lo biasing plate-shaped locking element 4 to its rest position
- perpendicular to the pivoting plane of push bar assembly 2.
Push bar assembly 2 may be released from its locked posy
it ion by pivoting plate-shaped locking element 4 downwards
against the action of spring 7. As soon as push bar assembly
15 has then reached a position adjacent the opposite stop
member 3, spring 7 causes locking element 4 to return to
its rest position.
The invention it not restricted to the embodiments shown
20 and described by way of example. Numerous other configure
anions of the locking element 4 as well as a wide selection
of materials to be employed for the locking element are
conceivable within the scope of the invention. It is also
possible to provide a push bar assembly of two-piece
25 construction and/or to vary the mounting location of
the push bar assembly and/or of the stop members 3 on
the frame 1 in any suitable manner.
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