Information
-
Patent Grant
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6241255
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Patent Number
6,241,255
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Date Filed
Tuesday, November 30, 199924 years ago
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Date Issued
Tuesday, June 5, 200123 years ago
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Inventors
-
-
Examiners
- Knight; Anthony
- Pickard; Alison K.
Agents
-
CPC
-
US Classifications
Field of Search
US
- 277 626
- 277 644
- 040 408
- 040 409
- 040 410
- 040 412
- 040 414
- 040 426
- 040 430
- 040 440
- 446 267
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International Classifications
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Abstract
A water sealing transmission mechanism fastened to the neck of a water container on a base to seal the water container in a watertight condition, and driven by a motor drive in the base to stir up a liquid in the water container, the water sealing transmission mechanism including a rubber packing member fastened to the neck of the water container, a holder mounted in the rubber packing member, the holder having a hollow center post, a transmission shaft mounted in the hollow center post and coupled to the motor drive in the base, a rotary barrel mounted in the receiving chamber in the holder for synchronous rotation with the transmission shaft by means of a magnetic coupling, the rotary barrel having radial blades for stirring up the liquid in the water container, and a carrier fixedly mounted on the holder and spaced above the rotary barrel to hold ornamental means in the liquid in the water container.
Description
BACKGROUND OF THE INVENTION
The present invention relates to water sealing transmission mechanism fastened to the neck of a water container on a base to seal the water container in a watertight condition, and driven by a motor drive in the base to stir up a liquid in the water container.
There is known a motion display toy, which comprises a base holding a motor drive, a water container mounted on the base and holding a liquid and ornamental chips in the liquid, and a transmission mechanism driven by the motor drive to rotate a figure in the liquid inside the water container. In order to keep the water container in a watertight condition, a water-sealing member is fastened to the mouth of the water container and mounted around the output shaft of the transmission mechanism. The water sealing member blocks up the mouth of the water container. This structure of water sealing member is expensive. Further, the water-sealing member wears quickly with use. When the water-sealing member starts to wear, it cannot keep the water container in a perfect watertight condition.
SUMMARY OF THE INVENTION
The present invention has been accomplished to provide water sealing transmission mechanism for a motion display toy, which eliminates the aforesaid drawbacks. According to one aspect of the present invention, the water sealing transmission mechanism is fastened to the neck of a water container on a base to seal the water container in a watertight condition, and driven by a motor drive in the base to stir up a liquid in the water container, the water sealing transmission mechanism comprising a rubber packing member fastened to the neck of the water container, a holder mounted in the rubber packing member, the holder having a hollow center post, a transmission shaft mounted in the hollow center post and coupled to the motor drive in the base, a rotary barrel mounted in the receiving chamber in the holder for synchronous rotation with the transmission shaft, the rotary barrel having radial blades for stirring up the liquid in the water container, and a carrier fixedly mounted on the holder and spaced above the rotary barrel to hold ornamental means in the liquid in the water container. According to another aspect of the present invention, magnets are reversely provided at the transmission shaft and the rotary barrel to produce a magnetic force of attraction between the rotary barrel and the transmission shaft, enabling the rotary barrel to be synchronously rotated with the transmission shaft.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
is an exploded view of water sealing transmission mechanism for a motion display toy according to the present invention.
FIG. 2
is a sectional view showing the transmission mechanism installed in a motion display toy according to the present invention.
FIG. 3
is an exploded view of an alternate form of the present invention.
FIG. 4
is a sectional plain view showing the alternate form of the present invention installed.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to
FIGS. 1 and 2
, water sealing transmission mechanism is shown comprised of a water-sealing packing member
1
, a holder
2
, a rotary barrel
3
, a transmission shaft
4
, and a carrier
5
.
The water-sealing packing member
1
is a rubber member having a center through hole
12
, an inner flange
13
around the center through hole
12
, and an outward flange
11
raised around the periphery thereof. The holder
2
comprises a hollow, cylindrical, top-open shell
21
inserted through the center through hole
12
on the water-sealing packing member
1
, a rim
26
raised around the top open side of the shell
21
and supported on the inner flange
13
of the water-sealing packing member
1
, a hollow center post
25
disposed in the shell
21
at the center, a receiving chamber
22
defined within the shell
21
around the hollow center post
25
, an upper axle
23
perpendicularly raised from the center of the flat top side wall of the hollow center post
25
, a lower axle
230
suspended in the hollow center post
25
(see FIG.
2
), and a plurality of plug holes
24
equiangularly spaced around the topmost edge of the shell
21
. The transmission shaft
4
is mounted in the hollow center post
25
, comprising a shaft body
41
, a center hole
43
axially disposed at the top end of the shaft body
41
, and a cylindrical magnet
42
fixedly mounted around the periphery of the top end of the shaft body
41
. The rotary barrel
3
is mounted in the receiving chamber
22
and covered over the hollow center post
25
, comprising a bottom-open shell
31
, a plurality of radial blades
33
equiangularly spaced at the top side of the bottom-open shell
31
, a plurality of inside holes
34
on the inside wall of the bottom-open shell
31
, a plurality of magnets
35
respectively mounted in the inside holes
34
, and a top center hole
32
through the center of the top side wall of the bottom-open shell
31
. The polarity of the magnets
35
is arranged reversed to the polarity of the cylindrical magnet
42
at the transmission shaft
4
. The carrier
5
is a disk supported on the holder
2
above the rotary barrel
3
, comprising a plurality of bottom mounting pins
52
respectively fitted into the plug holes
24
on the holder
2
, and a through hole
51
at the center thereof.
The assembly process of the present invention is outlined hereinafter with reference to
FIGS. 1 and 2
again. After installation of the magnets
35
in the shell
31
, the rotary barrel
3
is mounted in the receiving chamber
22
in the holder
2
and covered over the hollow center post
25
, then the bottom mounting pins
52
of the carrier
5
are respectively plugged into the plug holes
24
on the holder
2
, and then the transmission shaft
4
is mounted in the hollow center post
25
to couple the center hole
43
of the shaft body
41
to the lower axle
230
, enabling a magnetic force of attraction to be produced between the cylindrical magnet
42
at the transmission shaft
4
and the magnets
35
at the rotary barrel
3
, and then the cylindrical top-open shell
21
is inserted through the center through hole
12
on the packing member
1
, enabling the rim
26
to be supported on the inner flange
13
and adhered thereto by an adhesive. Further, the upper axle
23
extends out of the rotary barrel
3
through the top center hole
32
and suspended in the center hole
51
on the carrier
5
to hold an ornament. After assembly of the transmission mechanism, the periphery outward flange
11
of the packing member
1
are covered with an adhesive and then adhered to the inside wall of the neck of a transparent water container
7
to keep the transparent water container
7
in a watertight condition. The carrier
5
holds an ornament, for example, a toy rabbit inside the transparent water container
7
. The transparent water container
7
holds a liquid, and ornamental chips
8
in the liquid. After installation of the water sealing transmission mechanism in the neck of the transparent water container
7
the neck of the transparent water container
7
is mounted in a base, for enabling the shaft body
41
of the transmission shaft
4
to be coupled to the output shaft
62
of a motor drive
6
in the base. The motor drive
6
comprises a DC motor
61
controlled to turn the output shaft
62
through a reduction gear. Starting the DC motor
61
causes the transmission shaft
4
to be rotated with the output shaft
62
, thereby causing the rotary barrel
3
to be synchronously rotated with the transmission shaft
4
(due to the effect of magnetic coupling), and therefore the liquid in the transparent water container
7
is stirred up by the radial blades
33
of the rotary barrel
3
and, the ornamental chips
8
are forced to float in the liquid inside the transparent water container
7
.
FIGS. 3 and 4
show an alternate form of the present invention. According to this alternate form, a screw rod
36
is fixedly mounted on the rotary barrel
3
at the top, and the carrier
5
is fixedly fastened to the screw rod
36
by a nut
37
and spaced above the holder
2
. When the rotary barrel
3
is rotated, the carrier
5
is synchronously rotated.
It is to be understood that the drawings are designed for purposes of illustration only, and are not intended as a definition of the limits and scope of the invention disclosed.
Claims
- 1. A water sealing transmission mechanism fastened to the neck of a water container on a base to seal said water container in a watertight condition, and driven by a motor drive in said base to stir up a liquid in said water container, said water sealing transmission mechanism comprising:a rubber-packing member fastened to the neck of said water container, said rubber packing member comprising a center through hole; a holder mounted in the center through hole on said rubber packing member to seal the passage of the center through hole, said holder comprising a hollow, cylindrical, top-open shell inserted through the center through hole on said rubber packing member, a hollow center post disposed in said hollow, cylindrical, top-open shell, and a receiving chamber defined within said hollow, cylindrical, top-open shell around said hollow center post; a transmission shaft mounted in said hollow center post and rotated by the motor drive in said base, said transmission shaft comprising a shaft body coupled to the motor drive in said base, and a cylindrical magnet fixedly mounted around the periphery of said shaft body; a rotary barrel mounted in the receiving chamber in said holder for synchronous rotation with said transmission shaft, said rotary barrel comprising a bottom-open shell mounted in the receiving chamber in said holder and covered over said hollow center post, a plurality of radial blades equiangularly spaced at a top side of said bottom-open shell, a plurality of inside holes inside said bottom-open shell, and a plurality of magnets respectively mounted in said inside holes and attracted by the cylindrical magnet at said transmission shaft for enabling said rotary barrel to be rotated with said transmission shaft; and a carrier fixedly mounted on said holder and spaced above said rotary barrel to hold ornamental means in the liquid in said water container.
- 2. The water sealing transmission mechanism of claim 1 wherein said holder comprising an axle suspended in said hollow center post, and said shaft body of said transmission shaft comprises a top center hole coupled to the axle in said hollow center post.
- 3. The water sealing transmission mechanism of claim 1 wherein said rubber packing member comprises an inner flange raised around the center through hole thereof, and said holder comprises a rim raised around the periphery of said top-open shell and adhered to the inner flange of said rubber packing member.
- 4. The water sealing transmission mechanism of claim 1 wherein said holder comprises a plurality of plug holes equiangularly spaced on said top-open shell at a top side, and said carrier comprises a plurality of bottom mounting pins respectively fitted into the plug holes on said top-open shell of said holder.
- 5. The water sealing transmission mechanism of claim 1 wherein said rotary barrel comprises a top screw rod and a lock nut threaded onto said top screw rod, and said carrier is mounted around the top screw rod at said rotary barrel and fixedly secured thereto by said lock nut.
- 6. A water sealing transmission mechanism fastened to the neck of a water container on a base to seal said water container in a watertight condition, and driven by a motor drive in said base to stir up a liquid in said water container, said water sealing transmission mechanism comprising:a rubber-packing member fastened to the neck of said water container, said rubber packing member comprising a center through hole; a holder mounted in the center through hole on said rubber packing member to seal the passage of the center through hole, said holder comprising a hollow, cylindrical, top-open shell inserted through the center through hole on said rubber packing member, a hollow center post disposed in said hollow, cylindrical, top-open shell, and a receiving chamber defined within said hollow, cylindrical, top-open shell around said hollow center post; a transmission shaft mounted in said hollow center post and rotated by the motor drive in said base, said transmission shaft comprising a shaft body coupled to the motor drive in said base, and a cylindrical magnet fixedly mounted around the periphery of said shaft body; a rotary barrel mounted in the receiving chamber in said holder for synchronous rotation with said transmission shaft, said rotary barrel comprising a bottom-open shell mounted in the receiving chamber in said holder and covered over said hollow center post, a plurality of radial blades equiangularly spaced at a top side of said bottom-open shell, a plurality of inside holes inside said bottom-open shell, and a plurality of magnets respectively mounted in said inside holes and attracted by the cylindrical magnet at said transmission shaft for enabling said rotary barrel to be rotated with said transmission shaft; and a carrier fixedly mounted on said rotary barrel at topside to hold ornamental means in the liquid in said water container.
US Referenced Citations (7)