U.S. patent application number 11/308140 was filed with the patent office on 2006-12-07 for unit of a flection exerciser.
Invention is credited to Ming-Jen Ko.
Application Number | 20060276309 11/308140 |
Document ID | / |
Family ID | 37019738 |
Filed Date | 2006-12-07 |
United States Patent
Application |
20060276309 |
Kind Code |
A1 |
Ko; Ming-Jen |
December 7, 2006 |
UNIT OF A FLECTION EXERCISER
Abstract
A unit of a flection exerciser is made of resilient and durable
plastic material in one-piece. Two ends of the flection exerciser
are two enlarged grip portions and has an extension portion
connected the two ends. The two grip portions have a pin joint and
a box joint respectively, wherein each joint is a cylindrical body
with two annular flanges at two ends and a slot longitudinally in
the cylindrical body. The pin joint has an insertion formed at a
distal surface thereon and the box joint has a corresponding
insertion hole defined at a distal end thereon. By having the pin
joint and the box joint, the unit conveniently connects with other
same units to elongate or loop to perform the flection exerciser in
various types.
Inventors: |
Ko; Ming-Jen; (Hsienhsi
Hsiang, TW) |
Correspondence
Address: |
NIKOLAI & MERSEREAU, P.A.
900 SECOND AVENUE SOUTH
SUITE 820
MINNEAPOLIS
MN
55402
US
|
Family ID: |
37019738 |
Appl. No.: |
11/308140 |
Filed: |
March 8, 2006 |
Current U.S.
Class: |
482/91 |
Current CPC
Class: |
A63B 21/00065 20130101;
A63B 21/169 20151001; A63B 2208/0233 20130101; A63B 2208/0228
20130101; A63B 21/0557 20130101; A63B 21/0552 20130101; A63B
2208/0204 20130101; A63B 2208/0242 20130101 |
Class at
Publication: |
482/091 |
International
Class: |
A63B 21/002 20060101
A63B021/002 |
Foreign Application Data
Date |
Code |
Application Number |
Jun 2, 2005 |
TW |
094209161 |
Claims
1. A unit of a flection exerciser comprising: two enlarged grip
portions and an extension portion connected between the two
enlarged grip portions to compose an one-piece body made of
resilient and durable plastic material; a pin joint embedded in one
enlarged grip portion; and a box joint embedded in the other
enlarged grip portion and corresponding to the pin joint.
2. The unit of a flection exerciser as claimed in claim 1, wherein
the pin joint comprises: a cylindrical body with two ends; an
insertion axially formed on the cylindrical body of the pin joint
and having a locking stub formed at a distal end of the insertion;
a slot longitudinally defined in the cylindrical body of the pin
joint; and two annular flanges respectively formed at the two ends
of the cylindrical body of the pin joint; wherein, the box joint
comprises: a cylindrical body with two ends; an insertion hole
axially defined in the cylindrical body of the box joint; an
L-shaped groove defined on an inner wall of the insertion hole and
corresponding to the locking stub on the pin joint; a slot
longitudinally defined in the cylindrical body of the box joint;
and two annular flanges respectively formed at the two ends of the
box joint.
3. The unit of a flection exerciser as claimed in claim 2, wherein
an insertion hole of the box joint has a depth larger than a length
of the insertion on the pin joint.
4. The unit of a flection exerciser as claimed in claim 2, wherein
the L-shaped groove has a distal bent section slightly extending to
an opening of the insertion hole.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a unit of a flection
exerciser, and more particularly to a unit that combines with a
plurality of same units to compose a flection exerciser in various
types in an easy way.
[0003] 2. Description of Related Art
[0004] More and more people pay great attention on keeping figure
fit and physical conditions well. Therefore, various small size
exercisers are well developed in the market of exercise equipment.
Particularly, flection exercisers are nice choices for exercise
because they are light and small to be carried conveniently and
selectively used to train partial muscles at chests, shoulders,
arms, or backs.
[0005] A conventional one of the flection exerciser is integrally
made of soft resilient material with durable property and
resilient. Two ends of the flection exerciser are enlarged grip
portions suitable for holding in hands. An extension rod extends
between the two ends integrally and enables to be bent or swirled
by its resilient capability. By having the above structure, the
grip portions are held by hands and stretched for exercising.
[0006] However, the conventional flection exerciser has the
following drawbacks:
[0007] 1. The conventional flection exerciser has a stationary
length and can not combine with others alike so that the
conventional flection exerciser is limited in usage functions and
poor in utility.
[0008] 2. The conventional flection exerciser has a stationary
flexibility and can not be connected with others alike to perform a
looped one and not to change its flexibility so that usage
efficiency of the conventional flection exerciser is poor.
SUMMARY OF THE INVENTION
[0009] A main objective of the present invention is to provide a
unit of a flection exerciser that enables to conveniently connect
to at least one same unit to perform the flection exerciser in
various types. Disassembly of the flection exerciser is also rapid
and easy.
[0010] Another main objective of the present invention is to
provide a flection exerciser that enables to conveniently connect
to at least one same unit to perform a loop flection exerciser or
to adjust its flexibility.
[0011] To achieve the foregoing objectives, the unit of the
flection exerciser comprises:
[0012] two enlarged grip portions and an extension portion
connected between the two enlarged grip portions to compose an
one-piece body made of resilient and durable plastic material;
[0013] a pin joint embedded in one enlarged grip portion; and
[0014] a box joint embedded in the other enlarged grip portion and
corresponding to the pin joint.
[0015] By combining the pin joint and box joint, units are
selectively and conveniently connected together to perform an
elongated or looped flection exerciser in various types.
[0016] 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
[0017] FIG. 1 is a perspective view of a unit of a flection
exerciser in accordance with the present invention;
[0018] FIG. 2 is a perspective view of a locking device consisted
of a pin joint and a box joint;
[0019] FIG. 3 is cross-sectional side view showing an engagement of
the locking device in FIG. 2;
[0020] FIG. 4 is an operational cross-sectional side view of the
engagement of the locking device in FIG. 3;
[0021] FIG. 5 is an enlarged cross-sectional view of the engagement
of the locking device in FIG. 4;
[0022] FIG. 6 is a first operational schematic view showing a first
flection exerciser in use;
[0023] FIG. 7 is a second operational schematic view showing a
second flection exerciser in use;
[0024] FIG. 8 is a third operational schematic view showing a third
flection exerciser in use;
[0025] FIG. 9 is a fourth operational schematic view showing a
fourth flection exerciser in use;
[0026] FIG. 10 is a fifth operational schematic view showing a
fifth flection exerciser in use;
[0027] FIG. 11 is a sixth operational schematic view showing a
sixth flection exerciser in use;
[0028] FIG. 12 is a seventh operational schematic view showing a
seventh flection exerciser in use;
[0029] FIG. 13 is an eighth operational schematic view showing an
eighth flection exerciser in use;
[0030] FIG. 14 is a ninth operational schematic view showing an
ninth flection exerciser in use;
[0031] FIG. 15 is a tenth operational schematic view showing a
tenth flection exerciser in use; and
[0032] FIG. 16 is an eleventh operational schematic view showing an
eleventh flection exerciser in use.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0033] A unit of a flection exerciser in accordance with the
present invention is substantially made of resilient and durable
plastic material in one-piece. Two ends of the flection exerciser
are two enlarged grip portions and has an extension portion
connected the two ends. The two grip portions have a pin joint and
a box joint respectively, wherein each joint is a cylindrical body
with two annular flanges at two ends and a slot longitudinally
defined in the cylindrical body. The pin joint has an insertion
defined at a distal surface thereon and the box joint has a
corresponding insertion hole defined at a distal surface thereon.
By having the pin joint and the box joint, the unit connects with
other same units to elongate or loop to perform the flection
exerciser in various types.
[0034] With reference to FIGS. 1 and 2, a preferred embodiment of
the unit 10 of a flection exerciser in the present invention is
made of excellently resilient and durable plastic material in
one-piece and has two ends. The unit 10 has two enlarged grip
portions 11 formed at the two ends and an extension portion 12
extending between the two grip portions 11. When the unit 10 is
manufactured by injection molding, the two grip portions 11
encompass a pin joint 13 and a box joint 14 respectively. The pin
joint 13 has a cylindrical body 131 and an insertion 132 axially
formed on the cylindrical body 131. The insertion 132 of the pin
joint 13 has a locking stub 1321 formed at a distal end thereof.
The cylindrical body 131 of the pin joint 13 has two ends, a slot
134 longitudinally defined therein and two annular flanges 133
respectively formed at the two ends of the cylindrical body 131.
The slot 134 and the annular flanges 133 keep the pin joint 13
firmly combining with a corresponding one of the two grip portions
11 after injection molding to avoid detachment from the grip
portion 11. The box joint 14 has a cylindrical body 141 and an
insertion hole 142 axially defined in the cylindrical body 141. The
insertion hole 142 of the pin joint 13 has a depth larger than a
length of the insertion 132 on the pin joint 13 and has an L-shaped
groove 1421 defined on an inner wall of the insertion hole 142,
wherein the L-shaped groove 1421 has a distal bent section slightly
extending to an opening of the insertion hole 142. The cylindrical
body 141 of the box joint 14 has two ends, a slot 144
longitudinally defined therein and two annular flanges 143
respectively formed at the two ends of the box joint 14. The slot
144 and the annular flanges 143 keep the box joint 14 firmly
combining with the other grip portion 11 after injection molding to
avoid detachment from the grip portion 11.
[0035] With reference to FIGS. 3 to 5, when two units 10 of a
flection exerciser are combined by the pin joint 13 and box joint
14 respectively on the two units 10, the insertion 132 of the pin
joint 13 inserts into the insertion hole 142 of the box joint 14 to
make the locking stub 1321 slide into the L-shaped groove 1421 in
the insertion hole 142. Without pressing, the locking stub 1321 can
not reach the bent section of the L-shaped groove 1421. Then, the
two units 10 are pressed to close to each other and to make the
grip portions 11 slightly deformed so that the locking stub 1321
enables to enter the bent section to achieve a firm combination of
the two units.
[0036] By using the above-mentioned connection way, at least two
units are selectively connected together to perform an elongated or
looped flection exerciser in various types. Therefore, a user
exercises different specific parts with the various flection
exercisers at different postures as shown in FIGS. 6 to 16.
Moreover, the flection exerciser enables to be modified according
to different users and different exercise demands to create more
pleasure when exercising.
[0037] According to above description of the preferred embodiment,
the present invention has the following advantages:
[0038] 1. The flection exerciser can be selectively composed of at
least two units and conveniently assembled or disassembled in an
easy engagement so that the flection exerciser has various
functions and excellent utility.
[0039] 2. Because the flection exerciser is selectively composed of
multiple units 10 to achieve an elongated or looped one,
flexibility and size of the flection exerciser can be adjusted to
provide efficient training.
[0040] Although this invention has been described in its preferred
form with a certain degree of particularity, it is understood that
the present invention of the preferred form has been made only by
way of example and that numerous changes in the details of
construction and the combination and arrangement of parts any be
resorted to without departing from the spirit and scope of the
invention.
* * * * *