U.S. patent application number 14/205304 was filed with the patent office on 2015-09-17 for pull training device.
This patent application is currently assigned to Grant Electronic Limited. The applicant listed for this patent is Yongfei Xie. Invention is credited to Yongfei Xie.
Application Number | 20150258361 14/205304 |
Document ID | / |
Family ID | 54067848 |
Filed Date | 2015-09-17 |
United States Patent
Application |
20150258361 |
Kind Code |
A1 |
Xie; Yongfei |
September 17, 2015 |
Pull Training Device
Abstract
A pull training device is provided, including a pull grip, a
cable having an end connected to the pull grip and a power module
connected with the other end of the cable and can pull the cable.
The power module includes a power input unit and a power output
unit. The power input unit includes a motor and a cylinder combined
with the motor in a torsional manner. The power output unit
includes a rotating wheel and a winding shaft. The motor is
connected to the rotating shaft of the rotating wheel. The cylinder
is connected to spokes of the rotating wheel. The winding shaft is
coaxial with the rotating shaft. The cable is coiled on the winding
shaft. In a rotation circle of the rotating wheel driven by a pull,
the torsion formed by the cylinder and motor together changes
periodically, so the pull provided for training muscles is not a
single source. The pull changes regularly in a circle, thus the
muscles are trained a quick contraction and relaxation mode.
Inventors: |
Xie; Yongfei; (Kowloon,
HK) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Xie; Yongfei |
Kowloon |
|
HK |
|
|
Assignee: |
Grant Electronic Limited
Kowloon
HK
|
Family ID: |
54067848 |
Appl. No.: |
14/205304 |
Filed: |
March 11, 2014 |
Current U.S.
Class: |
482/98 |
Current CPC
Class: |
A63B 21/0058 20130101;
A63B 21/4043 20151001; A63B 21/0087 20130101; A63B 21/153 20130101;
A63B 21/00196 20130101; A63B 21/0083 20130101; A63B 21/4035
20151001 |
International
Class: |
A63B 21/062 20060101
A63B021/062 |
Claims
1. A pull training device, comprising a pull grip, a cable having
an end connected to the pull grip and a power module which is
connected with the other end of the cable and can pull the cable,
characterized in that: the power module includes a power input unit
and a power output unit; the power input unit includes a motor and
a cylinder combined with the motor in a torsional manner; the power
output unit includes a rotating wheel and a winding shaft; the
motor is connected to the rotating shaft of the rotating wheel; the
cylinder is connected to spokes of the rotating wheel; the winding
shaft is coaxial with the rotating shaft; and the cable is coiled
on the winding shaft; wherein, the motor provides the input unit
with a constant driving force, while the cylinder provides the
input unit with a driving force that changes periodically.
2. A pull training device according to claim 1, characterized in
that the cylinder has a piston moving up and down; the piston has a
rotational rigid link rod; one end of the link rod is rotationally
connected to the piston, while the other end is fixed at the spokes
of the rotating wheel.
3. A pull training device, comprising a pull grip, a cable having
an end connected to the pull grip and a power module which is
connected with the other end of the cable and can pull the cable,
characterized in that the power module includes a power input unit
and a power output unit; the power input unit includes a motor, a
cylinder combined with the motor in a torsional manner and a first
rotating wheel; the motor is connected to the rotating shaft of the
first rotating wheel; the cylinder is connected to the spokes of
the first rotating wheel; the power output unit includes a second
rotating wheel and a winding shaft; the winding shaft is coaxial
with the second rotating shaft; the cable is coiled on the winding
shaft; the first rotating wheel and the second rotating wheel
transmit rotation there-between through a transmission belt.
4. A pull training device according to claim 3, characterized in
that the transmission belt is a V-shape transmission belt. The
first rotating wheel and the second rotating wheel have a V-shaped
belt trough.
5. A pull training device according to claim 3, characterized in
that the cylinder has a piston moving up and down; the piston has a
rotational rigid link rod; one end of the link rod is rotationally
connected to the piston, while the other end is fixed at the spokes
of the first rotating wheel.
6. A method for generating combined torsion in the pull training
device according to claim 3, characterized in that the power input
unit is driven by the motor and the cylinder at the same time, the
motor drives the power input unit by a rotating driving force at a
constant speed, while the cylinder drives the power input unit by a
periodically changing force.
7. A pull training device, comprising a pull grip, a cable having
an end connected to the pull grip and a power module, characterized
in that the power module is connected with the other end of the
cable and drives the cable; the power module includes a power input
unit and a power output unit; the power input unit includes a first
rotating wheel, a motor, and a cylinder combined with the motor in
a torsional manner; the motor is connected to the rotating shaft of
the first rotating wheel; the cylinder is connected to the spokes
of the rotating wheel; the power output unit includes a second
rotating wheel and a winding shaft; the winding shaft is coaxial
with the second rotating shaft; the cable is coiled on the winding
shaft; the first rotating wheel and the second rotating wheel
transmit rotation there-between through a transmission belt; the
motor drives the rotating shaft of the first rotating wheel at a
constant rotating speed, while the cylinder drives the spokes of
the first rotating wheel by a periodically changing force.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Technical Field
[0002] The invention relates to fitness equipment for muscle
training, in particular to a pull training device which forms a
tension system by combining two kinds of diving forces.
[0003] 2. Description of Related Art
[0004] In professional training, muscles should be specifically
trained to generate an explosive power and quick reaction. The
explosive power depends on muscle strength transmission and muscle
contraction speed. The method for increasing strength of the
muscles is increasing the quantity of muscle fibers and enlarging
the muscles, while the method for speeding up muscle contraction is
different from the pure strength training mode and emphasizes on
periodic change of the strength.
[0005] Two common types of traditional pull training equipment are
available. One type is tension springs. The tension spring devices
are stretched by pulling. As the devices are stretched, a bigger
force is required. For example, the CN2032080 discloses an elastic
all-around trainer comprised of a hook and an elastic chest
expander as well as a plurality of rubber belts. The muscles are
trained through pulling the device with arms. The other is
adjustable rated-balance-weight lifting devices. For example, the
CN 202136742 U discloses a forearm trainer. This forearm trainer
adjusts the muscle training degree and strength through installing
balance weights on the lifting device which generates a pull. The
inherent weight of the balance weights are transmitted to the pull
training handle through a steel cable. The process of applying a
force is an anti-gravity working process. The number of balance
weights on the lifting device is in proportional to the pull
needed.
[0006] It is not hard to see from the pull configuration and output
mode that the above two devices provide single pull sources. One is
equidifferent weight gaining and the other is linear weight gaining
Those two devices can only train the muscle strength in terms of
pull, and fails to train the contraction and relaxation speed of
the muscles in terms of muscle response.
BRIEF SUMMARY OF THE INVENTION
[0007] Aiming at the above-mentioned problems, the invention
provides a pull training device capable of changing the pull in an
action circle. The device can provide muscle strength training and
muscle-contracting and--relaxing type reactive training in a
circle.
[0008] The technical scheme of a pull training device of the
invention is as follows. A pull training device comprises a pull
grip, a cable having an end connected with the pull grip and a
power module which is connected with the other end of the cable and
can pull the cable. The power module includes a power input unit
and a power output unit. The power input unit includes a motor and
a cylinder combined with the motor in a torsional manner. The power
output unit includes a rotating wheel and a winding shaft. The
motor is connected to the rotating shaft of the rotating wheel. The
cylinder is connected to spokes of the rotating wheel. The winding
shaft is coaxial with the rotating shaft. The cable is coiled on
the winding shaft.
[0009] The power input unit can be driven by the motor and the
cylinder at the same time. The motor drives the power input unit by
a rotating driving force at a constant speed, while the cylinder
drives the power input unit by a periodically changing force.
[0010] The cylinder has a piston moving up and down. The piston has
a rotational rigid link rod; one end of the link rod is
rotationally connected to the piston, while the other end is fixed
at the spokes of the rotating wheel.
[0011] A pull training device comprises a pull grip, a cable having
an end connected to the pull grip and a power module connected to
the other end of the cable and can pull the cable. The power module
includes a power input unit and a power output unit. The power
input unit includes a motor, a cylinder combined with the motor in
a torsional manner and a first rotating wheel. The moor is
connected to the rotating shaft of the first rotating wheel. The
cylinder is connected to the spokes of the first rotating wheel.
The power output unit includes a second rotating wheel and a
winding shaft. The winding shaft is coaxial with the second
rotating shaft. The cable is coiled on the winding shaft. The first
rotating wheel and the second rotating wheel transmit rotation
there-between through a transmission belt.
[0012] The transmission belt is a V-shaped transmission belt. The
first rotating wheel and the second rotating wheel both have a
V-shape belt trough.
[0013] The cylinder has a piston moving up and down. The piston has
a rotational rigid link rod; one end of the link rod is
rotationally connected to the piston, while the other end is fixed
at the spokes of the first rotating wheel.
[0014] A method for generating combined torsion in the pull
training device is provided. The power input unit is driven by the
motor and the cylinder at the same time. The motor drives the power
input unit by a rotating driving force at a constant speed, while
the cylinder drives the power input unit by a periodically changing
force.
[0015] The pull training device comprises a pull grip, a cable
having an end connected to the pull grip and a power module. The
power module is connected with the other end of the cable and
drives the cable. The power module includes a power input unit and
a power output unit. The power input unit includes a first rotating
wheel, a motor, and a cylinder combined with the motor in a
torsional manner. The motor is connected to the rotating shaft of
the first rotating wheel. The cylinder is connected to the spokes
of the rotating wheel. The power output unit includes a second
rotating wheel and a winding shaft. The winding shaft is coaxial
with the second rotating shaft. The cable is coiled on the winding
shaft. The first rotating wheel and the second rotating wheel
transmit rotation there-between through a transmission belt. The
motor drives the rotating shaft of the first rotating wheel at a
constant rotating speed, while the cylinder drives the spokes of
the first rotating wheel by a periodically changing force.
[0016] The invention has the following beneficial effects: in a
rotation circle of the rotating wheel driven by a pull, the torsion
formed by the cylinder and motor together changes periodically, so
the pull provided for training muscles is not a single source, but
changes regularly. Muscles generate power to resist the
periodically changing pull, thus fulfilling the aim of training and
exercising the muscles. The device trains muscles in a quick
contraction and relaxation mode.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
[0017] FIG. 1 is a structural view of the pull training device in
the first embodiment of the invention;
[0018] FIG. 2 is a structural view of the pull training device in
the second embodiment of the invention;
[0019] FIG. 3 is a vertical view of FIG. 1;
[0020] FIG. 4 is a vertical view of FIG. 2.
[0021] Wherein: pull grip 10, 10'; cable 20, 20'; power input unit
31, 31'; motor 311, 311'; cylinder 312, 312'; first rotating wheel
313'; piston 3121; link rod 3122; power output unit 32, 32';
rotating wheel 321; the second rotating wheel 321'; winding wheel
322, 322'; transmission belt 33'.
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1
[0022] Refer to FIG. 1, a pull training device comprises a pull
grip 1, a cable 20 having an end connected with the pull grip 10
and a power module connected with the other end of the cable 20 and
can pull the cable. The power module includes a power input unit 31
and a power output unit 32. The power input unit 31 includes a
motor 311 and a cylinder 312 combined with the 311 motor in a
torsional manner. The power output unit 32 includes a rotating
wheel 321 and a winding shaft 322. The motor 311 is connected to
the rotating shaft of the rotating wheel 321. The cylinder 312 is
connected to spokes of the rotating wheel 321. The winding shaft
322 is coaxial with the rotating shaft 321. The cable 20 is coiled
on the winding shaft 322.
[0023] The power input unit 31 is driven by the motor 311 and the
cylinder 312 at the same time. The motor 311 drives the power input
unit by a rotating driving force at a constant speed, meaning that
the force input by the motor to the power input unit is constant,
single, unchanged force. This driving force is fixed force. The
cylinder 312 drives the power input unit 31 by a driving force that
changes periodically. The cylinder 312 is provided with a piston
3121 moving up and down. The piston 3121 has a rotational rigid
link rod 3122. One end of the link rod 3122 is rotationally
connected to the piston 3121, while the other end is fixed at the
spokes of the rotating wheel 321. The movable piston in the
cylinder is provided with two extreme moving positions, namely a
highest position and a lowest position, while the middle position
is a balance position. When the piston moves downward from the
highest position to the balance position, a directional force
promoting the movement is called a first driving force; when the
piston moves downward from the balance position to the lowest
position, a directional force resisting the movement is called
resistance; when the piston moves upward from the lowest position
to the balance position, a directional force promoting the movement
is called a second driving force; when the piston moves upward from
the balance position to the highest position, a second resistance
is generated. In such a way, the cylinder periodically provides a
driving force that changes periodically to the power input unit
31.
Embodiment 2
[0024] Refer to FIG. 2, a pull training device is provided,
different from the embodiment 1 in that: the power input unit 31'
includes a motor 311', a cylinder 312' combined with the motor 311'
in a torsional manner and a first rotating wheel 313'; the motor
311' is connected to the rotating shaft of the first rotating wheel
313'; the cylinder 312' is connected to the spokes of the first
rotating wheel 313'; the power output unit 32' comprises a second
rotating shaft 321' and a winding shaft 322'; the winding shaft
322' is coaxial with the second rotating wheel 321'; the cable 20'
is coiled on the winding shaft 322'; the pull grip 10 is connected
to the tail end of the cable 20; the first rotating wheel 313' and
the second rotating wheel 321' transmit rotation there-between
through a transmission belt 33'.
[0025] In this embodiment, an original rotating wheel is divided
into two different rotating wheels, a first rotating wheel and a
second rotating wheel. The first rotating wheel and the second
rotating wheel respectively play the roles of the power input unit
and the power output unit, while the two rotating wheels transmit
rotation there-between through the transmission belt 33'. However,
it can be clear that the transmission belt 33' is not the only
transmission part that can drive the two rotating wheels. Any
transmission part that can transmit rotation between the two
rotating wheels can be the substitute scheme.
[0026] Furthermore, the transmission belt 33' is a V-shaped
transmission belt. The first rotating wheel and the second rotating
wheel both have a V-shape belt trough.
[0027] A method for generating combined torsion in the pull
training device is provided. The power input unit is driven by the
motor and the cylinder at the same time. The motor drives the power
input unit by a rotating driving force at a constant speed, while
the cylinder drives the power input unit by a periodically changing
force.
[0028] In a rotation circle of the rotating wheel driven by a pull,
the torsion formed by the cylinder and motor together changes
periodically, so the pull provided for training muscles is not a
single source, but changes regularly. Muscles generate power to
resist the periodically changing pull to fulfill the aim of
training and exercising the muscles. The device trains muscles in a
quick contracting and relaxation mode.
[0029] The above embodiments are only preferable embodiments of the
invention and cannot be regarded as limit on the invention in any
form. Within the technical scheme scope of the invention, any
skilled in those field may make equivalent changes or amendments
according to the above disclosed technical contents. Any simple
modifications, equivalent changes or amendments within the spirit
of the technical scheme of the invention should belong to the
protective scope of the technical scheme of the invention.
* * * * *