Brakes – Vehicle – Children's carriages
Reexamination Certificate
2002-05-22
2003-07-29
Schwartz, Christopher P. (Department: 3683)
Brakes
Vehicle
Children's carriages
C188S031000, C267S005000
Reexamination Certificate
active
06598712
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention generally relates to a braking device for a baby carriage. The user may step down a mechanism to control the barking device.
2. Background Description
The baby carriage is very popular in the modem age. Particularly when parents would like to bring babies to other places, the baby carriages are suitable to take the babies along with the parents. However, the parent does not pay enough attention to the safety as to the convenience of the baby carriage. When the baby carriage is not moving, a poor design to the braking device would endanger the baby.
Prior baby carriages are shown as
FIG. 1
, the baby carriage
1
has a frame
10
, plural wheels
12
, a handler
16
, a baby receiving area
18
and a braking device
14
. The frame
10
is designed to support the whole baby carriage
1
and to link every element of the baby carriage
1
. The handler
16
is connected to a part of the frame
10
and provides a convenient way to move the baby carriage by hands. The baby receiving area
18
provides an area for placing a pad, supported by carriage supports
180
, to comfort the baby. The braking device
14
is connected to the wheels
12
in order to stop the wheels. The braking device contains a stop rod
140
shown in
FIG. 2
, connected to an end of the braking device
14
. When the stop rod
140
is stepped down, the braking device
14
will stop the wheels
12
. Thus, the wheels
12
will stop rotation and the baby carriage is at the braking mode. If the user lifts the stop rod
140
by the foot, the braking device
14
will be released and the wheel is therefore rotatable at the releasing mode.
Please refer to
FIGS. 3 and 4
.
FIG. 3
shows a prior baby carriage at a releasing mode.
FIG. 4
shows the cross section of prior known baby carriage. As shown in the Figures, the braking device
14
includes at least a braking base
141
, a braking wheel
142
and a step pad
143
. Wherein the braking base
141
is connected to the frame
10
of the baby carriage
1
, including a pivot
1410
. The axis of the braking wheel
142
is connected to the axle
120
of the wheel
12
. In this case, the braking wheel
142
and the wheels may rotate at the same axle. The step pad
143
is formed as a rectangular shape. The central portion of the step pad
143
is connected to the pivot
1410
of the braking base
141
and able to be locked to the outside of the braking base
141
. In this case, the step pad
143
may rotate around the pivot
1410
circularly. The step pad
143
further includes a pad face
1430
, a stop node
144
and a pad securing device
145
. The pad face
1430
and the stop node
144
are placed the outside portion
148
. The pad face
1430
is for stepping down by the user. The stop node
144
is for controlling the wheels whether being stopped or not. The pad locking device
145
is for locking the pad
143
in a braking mode or a releasing mode. The pad locking device
145
includes a pin
1450
and an elastic element
1451
. The elastic element
1451
is placed in a proper place of the pad
143
. The pin
1450
is a pillar connecting to a curve surface
1411
at one end, and connecting to the elastic element
1451
at another end. The restoring force provided by the elastic element
1451
is able to enforce the pin
1450
attaching the curve surface
1411
very tightly. Since the curve surface
1411
is designed as an arched shape, when the pad
143
rotates along the center of the pivot
1410
, the pad
143
will be forced to the curve surface
1411
and therefore be fixed.
When the user is not using the braking device
14
, the pad
143
maintains the position shown in
FIG. 3
, wherein the position is the releasing position. In the case, the stop node
144
is far from the braking wheel
142
. The braking wheel
142
is therefore freely rotatable. The user may move the baby carriage to other places without the limitation from the braking device. If the user would like to stop the baby carriage or keep the baby carriage at where it is, the user has to step down the pad
143
, as shown in
FIG. 4
, at a braking position. In the case, the stop node
144
contacts the braking wheel
142
. Since the braking wheel is a rachet and the stop node is a pin, as shown in
FIG. 3
, when the stop node
144
contacts the braking wheel
142
, the braking node
144
will be inserted into the braking wheel
142
as shown in FIG.
4
. In this case, the braking wheel will stop rotation, as do to the wheels in order to stop the baby carriage.
Besides, as shown in
FIG. 2
, a step bar
140
is extended from the pad
143
. The step bar
140
is connected to the pads
143
of braking devices
14
at both ends. The user is therefore able to employ his/her toe or feet to move down the pad
143
in order to brake the baby carriage or lift up the pad
143
in order to release the braking device.
As stated above, the user has to depress the pad
143
to deploy the braking device and to lift up the pad
143
by user's shoes. In this case, shoes may be smudged by dirt on the pad. Further disadvantages of the prior known baby carriage is that the baby carriage is easy to be stopped accidently if the parent or user step down the barking pad unintentionally. In this case, no matter the baby is thrown out or the baby carriage is damaged, is not willing to be seen or happened.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide a linkage device; placed in a side of the stop node and the pad, for releasing the braking device particularly when the pad is stepped down.
It is another object of the present invention to provide the linkage device placed in the inner side of the pad in order to be away from the user for reducing the accidence of stepping down the pad.
REFERENCES:
patent: 5460399 (1995-10-01), Baechler et al.
patent: 6022042 (2000-02-01), Hartenstine
Kingstar Baby Carriage Co., Ltd.
Lowe Hauptman & Gilman & Berner LLP
Schwartz Christopher P.
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