U.S. patent application number 11/095502 was filed with the patent office on 2006-10-05 for rolling wheel.
Invention is credited to Tzu-Shen Yang.
Application Number | 20060220371 11/095502 |
Document ID | / |
Family ID | 37069444 |
Filed Date | 2006-10-05 |
United States Patent
Application |
20060220371 |
Kind Code |
A1 |
Yang; Tzu-Shen |
October 5, 2006 |
Rolling wheel
Abstract
A rolling wheel that moves more agile and at greater speed for a
host object such as a skate is comprised of a ball roller, placed
in a case and covered up with a casing lid to restrict the ball in
the case, multiple holding wheel chambers provided on top of the
case each accommodating a holding wheel; the ball roller when
placed in the case maintaining a certain spacing with the case
without contacting each other when held against by those multiple
holding wheels by taking advantage of the directionless rolling of
the ball roller.
Inventors: |
Yang; Tzu-Shen; (Kaohsiung
City, TW) |
Correspondence
Address: |
LEONG C LEI
PMB # 1008
1867 YGNACIO VALLEY ROAD
WALNUT CREEK
CA
94598
US
|
Family ID: |
37069444 |
Appl. No.: |
11/095502 |
Filed: |
April 1, 2005 |
Current U.S.
Class: |
280/843 |
Current CPC
Class: |
A63C 17/006 20130101;
A63C 17/01 20130101; A63C 17/06 20130101; A63C 17/24 20130101 |
Class at
Publication: |
280/843 |
International
Class: |
A63C 17/00 20060101
A63C017/00 |
Claims
1. A rolling wheel includes a ball roller placed in a case and
covered up with a lid to restrict the ball roller inside the case
without risk of accidental falling off; multiple chambers disposed
on the top of the case separating from one another at an equal
angle; a holding wheel being placed in each chamber; the holding
wheel moving free inside the chamber; and the ball roller
maintaining a given spacing from the case without contacting each
other.
2. The rolling wheel of claim 1, wherein, the section of the
chamber indicates a regular polygonal shape.
3. The rolling wheel of claim 1, wherein, the section of the
chamber indicates a regular round shape.
Description
BACKGROUND OF THE INVENTION
[0001] (a) Technical Field of the Invention The present invention
is related to a rolling wheel, and more particular to a ball roller
that rolls directionless with improved agility.
[0002] (b) Description of the Prior Art
[0003] Referring to FIG. 1 of the accompanying drawings, the prior
art of a rolling wheel is essentially made of a wheel (11)
penetrating through an axle (12) to be pivoted to a truck (13) to
roll around the fixed axle (12). Whereas the construction of the
prior art rolls in a given direction, extra attention is required
to make sure that the operation direction of a host object
installed with the rolling wheel is the same with that of the
roller. It appeals not appropriate for the host object, such as a
skate or an in-line skate that always heads in one direction, to
move in the direction as desired. Therefore, the skate or the
in-line skate mounted with the rolling wheel of the prior art
prevents easy turning and many other directionless motions due to
that the construction of the rolling wheel presents much more
resistance to the motions other than heading for the same direction
thus to significantly affect the speed of the host object.
SUMMARY OF THE INVENTION
[0004] The primary purpose of the present invention is to provide
an improved construction of a rolling wheel to provide more agility
for the rolling wheel in taking turns, further reduce motive force
loss, and increase the speed of a skate or similar host object
mounted with the rolling wheel.
[0005] To achieve the purpose, the present invention is comprised
of a ball roller placed in a case and covered up with a lid to be
restricted in the case without accidental falling off, and multiple
holding wheel chambers provided on top of the case with each
chamber accommodating a holding wheel. Accordingly, the ball roller
placed in the case maintains a given spacing with the case without
contacting each other when plunged by multiple holding wheels.
[0006] The foregoing object and summary provide only a brief
introduction to the present invention. To fully appreciate these
and other objects of the present invention as well as the invention
itself, all of which will become apparent to those skilled in the
art, the following detailed description of the invention and the
claims should be read in conjunction with the accompanying
drawings. Throughout the specification and drawings identical
reference numerals refer to identical or similar parts.
[0007] Many other advantages and features of the present invention
will become manifest to those versed in the art upon making
reference to the detailed description and the accompanying sheets
of drawings in which a preferred structural embodiment
incorporating the principles of the present invention is shown by
way of illustrative example.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] FIG. 1 is a schematic view of the prior art.
[0009] FIG. 2 is a schematic view showing the appearance of a
preferred embodiment of the present invention.
[0010] FIG. 3 is a sectional view of the preferred embodiment of
the present invention. FIG. 4 is a schematic view showing that the
preferred embodiment of the present invention is adapted to a
skateboard. FIG. 5 is a schematic view showing that the preferred
embodiment of the present invention is adapted to an in-line skate.
FIG. 6 is a schematic view showing that the preferred embodiment of
the present invention is adapted to a wheelchair.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0011] The following descriptions are of exemplary embodiments
only, and are not intended to limit the scope, applicability or
configuration of the invention in any way. Rather, the following
description provides a convenient illustration for implementing
exemplary embodiments of the invention. Various changes to the
described embodiments may be made in the function and arrangement
of the elements described without departing from the scope of the
invention as set forth in the appended claims.
[0012] Referring to FIGS. 2 and 3 for a preferred embodiment of the
present invention, the present invention relates to an improved
structure of a rolling wheel (2) comprised of a ball roller (21), a
case (22), and a case lid (23). The ball roller (21) placed in the
case (22) and covered up with the lid (23) is restricted in the
case (22) to prevent accidental falling off.
[0013] The ball roller (21) relates to a regular round ball made of
hard and wear-resisting material, and to be made in solid or hollow
status as required.
[0014] The case (22) in a diameter slightly greater than that of
the ball roller (21) has provided on its top multiple holding wheel
chambers (221), three of them in the preferred embodiment of the
present invention, separating from one another at for an equal
angle. Each chamber (221) accommodates a holding wheel (222) and
the section of the chamber (221) may be made in round shape or
regular polygonal shape. The size of the holding wheel is slightly
smaller than that of the chamber (221) thus to achieve free
movement therein. When the holding wheel (222) is in position, it
protrudes for a proper range from the interior of the case (22), so
that once the ball roller (21) is placed in the case (22), the ball
roller (21) maintains a certain spacing from the case without
contacting each other as the ball roller (21) is held against by
three holding wheels (222). The lid (23) then covers up the opening
end of the case (22) to restrict the ball roller (21) inside the
case (22). An opening (231) in a diameter smaller than that of the
ball roller (21) is disposed on the case (22), so that the ball
roller (21) is partially exposed from the opening (231) without
falling out of the case (22).
[0015] When assembled, the ball roller (21) in the case (22) is
supported by the delta combination of those three holding wheels
(222) to permit directionless rolling to promote the agility of a
host object, e.g., a skate, mounted with the rolling wheel of the
present invention in taking turns. Whereas there is the least
contact points of the ball roller (21) and the moving direction of
the ball roller (21) is the same with as of the rolling wheel
without loss of motive force to further increase the speed of the
skate.
[0016] The rolling wheel of the present invention may be adapted to
the skate, in-line skate or wheelchair as illustrated in FIGS. 4,
5, and 6. A worm gear (3) is used to mount one or multiple units of
the present invention to where in front of the skate (4), the
in-line skate (5) or below the wheelchair (6) for effectively
improving their turning performance and sliding efficiency.
[0017] It will be understood that each of the elements described
above, or two or more together may also find a useful application
in other types of methods differing from the type described
above.
[0018] While certain novel features of this invention have been
shown and described and are pointed out in the annexed claim, it is
not intended to be limited to the details above, since it will be
understood that various omissions, modifications, substitutions and
changes in the forms and details of the device illustrated and in
its operation can be made by those skilled in the art without
departing in any way from the spirit of the present invention.
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