Information
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Patent Grant
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6263526
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Patent Number
6,263,526
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Date Filed
Friday, July 7, 200024 years ago
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Date Issued
Tuesday, July 24, 200123 years ago
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Inventors
-
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Examiners
Agents
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CPC
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US Classifications
Field of Search
US
- 005 109
- 005 108
- 005 655
- 005 632
- 005 603
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International Classifications
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Abstract
A baby head pattern forming cot includes a support base having two opposite side walls each defining a pivot hole, a rotary base rotatably mounted in the support base and having two ends each provided with a pivot axle pivotally mounted in the pivot hole of the support base, a pattern forming base mounted in a receiving chamber of the rotary base and defining a body-shaped recess and a head-shaped recess, and a rotation device mounted in the support base. The rotation device includes a motor secured in the support base, a drive gear mounted on and rotated by the motor, a rotation controller secured on the motor for controlling rotation of the drive gear, a reduction gear meshing with and rotated by the drive gear, and a driven gear secured on the pivot axle of one of the two ends of the rotary base and meshing with and rotated by the reduction gear.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a pattern forming cot, and more particularly to a baby head pattern forming cot.
2. Description of the Related Art
A conventional baby head pattern forming device in accordance with the prior art includes a cushion defining a recess whose shape is adapted to mate with that of the head of the baby so as to fix the baby's head, thereby achieving the purpose of forming a pattern on the baby's head.
However, the baby's head is fixed at a constant angle so that the inclined angle of the baby's head in the cushion is fixed and cannot be adjusted so that the forces are locally concentrated on a certain position of the baby's head, and cannot be distributed evenly, thereby easily deforming the baby's head during long term utilization, thereby decreasing the versatility of the baby head pattern forming device.
SUMMARY OF THE INVENTION
The present invention has arisen to mitigate and/or obviate the disadvantage of the conventional baby head pattern forming device.
In accordance with one aspect of the present invention, there is provided a baby head pattern forming cot comprising: a support base having two opposite side walls each defining a pivot hole; a rotary base rotatably mounted in the support base and defining a receiving chamber therein, the rotary base having two ends each provided with a pivot axle pivotally mounted in the pivot hole of a respective one of the two opposite side walls of the support base; a pattern forming base received in the receiving chamber of the rotary base and having a bottom with a shape mating with that of the receiving chamber, and a top defining a body-shaped recess and a head-shaped recess; and a rotation device mounted in the support base and including a motor secured in the support base, a drive gear mounted on and rotated by the motor, a rotation controller secured on the motor for controlling rotation of the drive gear, a reduction gear meshing with and rotated by the drive gear, and a driven gear secured on the pivot axle of one of the two ends of the rotary base and meshing with and rotated by the reduction gear.
In accordance with another aspect of the present invention, the baby head pattern forming cot further comprises a switch device mounted on the support base and including an angle set button and a time set button. The switch device connects with a positive/reverse rotation control circuit of the rotation controller of the motor.
In accordance with another aspect of the present invention, the switch device further includes a speed set button, and the motor is provided with a gear shift mechanism.
Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
is an exploded view of a baby head pattern forming cot in accordance with the present invention;
FIG. 2
is a partially exploded view of a baby head pattern forming cot in accordance with the present invention;
FIG. 3
is a perspective assembly view of the baby head pattern forming cot as shown in
FIG. 1
;
FIG. 4
is a side plan cross-sectional assembly view of the baby head pattern forming cot as shown in
FIG. 1
;
FIG. 5
is a front plan cross-sectional schematic view of the baby head pattern forming cot as shown in
FIG. 1
;
FIG. 6
is an operational view of the baby head pattern forming cot as shown in
FIG. 4
;
FIG. 7
is a circuit diagram of the baby head pattern forming cot in accordance with another embodiment of the present invention; and
FIG. 8
is a circuit diagram of the baby head pattern forming cot in accordance with another embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
Referring to the drawings and initially to
FIGS. 1-6
, a baby head pattern forming cot in accordance with the present invention comprises a support base
10
, a rotary base
20
rotatably mounted in the support base
10
, a pattern forming base
30
made of foam material and received in the rotary base
20
to rotate therewith, and a rotation device
23
mounted in the support base
10
for rotating the rotary base
20
.
The support base
10
has two opposite side walls
12
each defining a pivot hole
11
.
The rotary base
20
defines a receiving chamber
200
therein and has a periphery defining a plurality of through holes
21
each connecting to the receiving chamber
200
for providing a ventilating effect. The rotary base
20
has two ends each provided with a pivot axle
22
pivotally mounted in the pivot hole
11
of a respective one of the two opposite side walls
12
of the support base
10
so that the rotary base
20
is rotatably mounted in the support base
10
.
The pattern forming base
30
is received in the receiving chamber
200
of the rotary base
20
and has a bottom with a shape mating with that of the receiving chamber
200
, and a top defining a body-shaped recess
31
and a head-shaped recess
32
. Preferably, the pattern forming base
30
is provided with a safety strap
33
for protecting the baby.
The rotation device
23
includes a motor
26
secured in the support base
10
, a drive gear
27
mounted on and rotated by the motor
26
, a rotation controller
260
secured on the motor
26
for controlling rotation of the drive gear
27
, a reduction gear
25
meshing with and rotated by the drive gear
27
, and a driven gear
24
secured on the pivot axle
22
of one of the two ends of the rotary base
20
and meshing with and rotated by the reduction gear
25
. The reduction gear
25
includes a pivot shaft
250
mounted in the side wall
12
of the support base
10
so that the reduction gear
25
is rotatably mounted in the support base
10
. The rotation controller
260
of the motor
26
is constructed by a positive/reverse rotation control circuit
43
as shown in
FIG. 7
so as to control the time and turns of the reciprocally rotating drive gear
27
so that the pattern forming base
30
can be periodically rotated at a fixed time and at a fixed velocity by the drive gear
27
, thereby properly changing the inclined angle of the baby during sleeping so as to distribute and balance the forces exerted on the head of the baby, thereby forming a perfect head pattern for the baby.
In assembly, the motor
26
is secured in the support base
10
, and the drive gear
27
is mounted on and rotated by the motor
26
. The pivot shaft
250
of the reduction gear
25
is rotatably mounted in the side wall
12
of the support base
10
so that the reduction gear
25
is rotatably mounted in the support base
10
and meshes with the drive gear
27
. The pivot axle
22
of the rotary base
20
is then pivotally mounted in the pivot hole
11
of the side wall
12
of the support base
10
so that the rotary base
20
is rotatably mounted in the support base
10
while the driven gear
24
is secured on the pivot axle
22
of one of the two ends of the rotary base
20
for rotating the pivot axle
22
and meshes with and rotated by the reduction gear
25
. The pattern forming base
30
is then received in the receiving chamber
200
of the rotary base
20
. The motor
26
is controlled by the rotation controller
260
so as to rotate the drive gear
27
at a constant speed.
In such a manner, the driven gear
24
meshes with the reduction gear
25
which meshes with the drive gear
27
so that the driven gear
24
can be rotated by the drive gear
27
through the reduction gear
25
so as to rotate the pivot axle
22
which rotates the rotary base
20
which rotates the pattern forming base
30
.
As shown in
FIG. 4
, the rotary base
20
is stationary.
As shown in
FIG. 5
, the baby is placed in the pattern forming base
30
with its head being received in the head-shaped recess
32
of the pattern forming base
30
.
As shown in
FIG. 6
, the rotary base
20
can be rotated between the position as shown in solid lines and the position as shown in phantom lines.
Referring to
FIG. 7
, in accordance with another embodiment of the present invention, the baby head pattern forming cot further comprises a switch device
40
mounted on the support base
10
and including an angle set button
41
and a time set button
42
mounted in a control panel (not shown). The switch device
40
electrically connects to the positive/reverse rotation control circuit
43
of the rotation controller
260
of the motor
26
so as to set the angle of rotation and the time of the pattern forming base
30
.
Referring to
FIG. 8
, in accordance with another embodiment of the present invention, the switch device
40
further includes a speed set button
44
, and the motor
26
is provided with a gear shift mechanism
45
so that the speed of rotation of the motor
26
can be efficiently controlled.
Accordingly, the baby head pattern forming cot in accordance with the present invention has the following advantages.
The baby head pattern forming cot comprises a support base, a rotary base, and a pattern forming base which can be controlled to periodically reciprocally rotated at a constant speed so that the forces are evenly distributed on the head of the baby to achieve a force balance effect, thereby perfectly forming a head pattern on the baby.
In addition, the pattern forming base is rotated slowly and constantly, thereby achieving an actual head pattern forming effect so as to assure the outer appearance of the head of the baby.
Further, the periodical angle and speed of rotation of the rotary base are controlled by the rotation device automatically without needing a manual work, thereby increasing the convenience of the baby head pattern forming cot
It should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.
Claims
- 1. A baby head pattern forming cot comprising:a support base (10) having two opposite side walls (12) each defining a pivot hole (11); a rotary base (20) rotatably mounted in said support base (10) and defining a receiving chamber (200) therein, said rotary base (20) having two ends each provided with a pivot axle (22) pivotally mounted in said pivot hole (11) of a respective one of said two opposite side walls (12) of said support base (10); a pattern forming base (30) received in said receiving chamber (200) of said rotary base (20) and having a bottom with a shape mating with that of said receiving chamber (200), and a top defining a body-shaped recess (31) and a head-shaped recess (32); and a rotation device (23) mounted in said support base (10) and including a motor (26) secured in said support base (10), a drive gear (27) mounted on and rotated by said motor (26), a rotation controller (260) secured on said motor (26) for controlling rotation of said drive gear (27), a reduction gear (25) meshing with and rotated by said drive gear (27), and a driven gear (24) secured on said pivot axle (22) of one of said two ends of said rotary base (20) and meshing with and rotated by said reduction gear (25).
- 2. The baby head pattern forming cot in accordance with claim 1, wherein said rotary base (20) has a periphery defining a plurality of through holes (21).
- 3. The baby head pattern forming cot in accordance with claim 1, wherein said pattern forming base (30) is provided with a safety strap (33).
- 4. The baby head pattern forming cot in accordance with claim 1, further comprising a switch device (40) mounted on said support base (10), said switch device (40) including an angle set button (41) and a time set button (42), and said switch device (40) connecting with a positive/reverse rotation control circuit (43) of said rotation controller (260) of said motor (26).
- 5. The baby head pattern forming cot in accordance with claim 4, wherein said switch device (40) further includes a speed set button (44), and said motor (26) is provided with a gear shift mechanism (45).
US Referenced Citations (5)