U.S. patent application number 09/977598 was filed with the patent office on 2003-01-23 for treading apparatus.
Invention is credited to Juan, Chih-Chen.
Application Number | 20030017916 09/977598 |
Document ID | / |
Family ID | 21678841 |
Filed Date | 2003-01-23 |
United States Patent
Application |
20030017916 |
Kind Code |
A1 |
Juan, Chih-Chen |
January 23, 2003 |
Treading apparatus
Abstract
A treading apparatus, comprising a base frame, a rear support,
an oil cylinder base, carrying communicating left and right oil
cylinders, left and right treadles, an oil buffer, and a throttle
valve. The left and right treadles are hingedly connected with the
rear support. During use, the left and right treadles are
alternately pushed down, performing a treading movement. Left and
right connecting rods are attached to the left and right treadles,
having far ends on which rolls are set which drive guided rods to
enter the left and right oil cylinders. Left and right treading
plates are mounted on the left and right treadles. The oil buffer
communicates with the left and right oil cylinders, having a volume
regulator which regulates volume of oil stored in the oil buffer.
The throttle valve regulates flow of oil between the left and right
oil cylinders.
Inventors: |
Juan, Chih-Chen; (Chun
Chiayi City, TW) |
Correspondence
Address: |
Keith Kline
PRO-TECHTOR INTERNATIONAL SERVICES
20775 Norada Court
Saratoga
CA
95070-3018
US
|
Family ID: |
21678841 |
Appl. No.: |
09/977598 |
Filed: |
October 12, 2001 |
Current U.S.
Class: |
482/51 |
Current CPC
Class: |
A63B 22/0015 20130101;
A63B 21/0083 20130101; A63B 23/0429 20130101; A63B 22/0056
20130101 |
Class at
Publication: |
482/51 |
International
Class: |
A63B 022/00 |
Foreign Application Data
Date |
Code |
Application Number |
Jul 23, 2001 |
TW |
90117965 |
Claims
1. A treading apparatus, comprising: a base frame; a rear support,
mounted on a rear side of said base frame; an oil cylinder base in
front of said rear support, carrying communicating left and right
oil cylinders; left and right guided rods, entering said left and
right oil cylinders, respectively; left and right treadles,
hingedly connected with said rear support; left and right
connecting rods, attached to said left and right treadles,
respectively, having far ends; left and right rolls, set on said
far ends of said left and right connecting rods, respectively; left
and right treading plates, mounted on said left and right treadles,
respectively; and an oil buffer, placed between and communicating
with said left and right oil cylinders, having a volume regulator
which regulates volume of oil stored in said oil buffer.
2. A treading apparatus according to claim 1, wherein said volume
regulator further comprises: a vessel, communicating with said left
and right oil cylinders; and an adjusting screw, vertically
entering said vessel.
3. A treading apparatus, comprising: a base frame; a rear support,
mounted on a rear side of said base frame; an oil cylinder base in
front of said rear support, carrying communicating left and right
oil cylinders; left and right guided rods, entering said left and
right oil cylinders, respectively; left and right treadles,
hingedly connected with said rear support; left and right
connecting rods, attached to said left and right treadles,
respectively, having far ends; left and right rolls, set on said
far ends of said left and right connecting rods, respectively; left
and right treading plates, mounted on said left and right treadles,
respectively; a throttle valve, placed between and communicating
with said left and right oil cylinders, regulating flow of oil
between said left and right oil cylinders.
4. A treading apparatus according to claim 3, wherein said throttle
valve further comprises: a tubelet, communicating with said left
and right oil cylinders; and a throttle screw, entering said
tubelet, thus regulating flow of oil between said left and right
oil cylinders.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a treading apparatus,
particularly to a treading apparatus for exercising which is simple
and inexpensive and allows regulating of working height and
speed.
[0003] 2. Description of Related Art
[0004] In today's industrial society, people are busy, having
little time for exercising. Particularly for city dwellers,
exercising devices have been designed. Treading apparatuses, being
light and not taking much space, effectively simulate walking,
going up stairs and climbing mountains and are therefore
popular.
[0005] A conventional treading apparatus, as shown in FIG. 8,
mainly comprises: a base frame 20, having a front base 21 and a
rear base 22; two treadles 23a, 23b, having front ends that are
hingedly connected with the front base 21; connecting rods 24,
connected with the treadles 23a, 23b at the front ends thereof; oil
cylinders 25, mounted between the treadles 23a, 23b and the front
base 21, attenuating movements of the treadles 23a, 23b; a roll
holder 26, mounted at a lower side of the rear base 22, holding a
roll 27; and a cord 28, wound around the roll 27, connecting far
ends of the connecting rods 24. When a user treads on the treadle
23a, the far end of the connecting rod 24 attached thereto moves
forward, pulling on the cord 28, which, deflected by the roll 27,
in turn pulls rearward the connecting rod 24 attached to the
treadle 23b, so that the treadle 23b rises. Thus the user
alternately pushes down the treadles 23a, 23b, performing healthy
exercise.
[0006] However, there is no way to regulate treading amplitude and
speed in a conventional treading apparatus. Employing the roll 27
and the cord 28 results in a complicated system with high
assembling cost.
SUMMARY OF THE INVENTION
[0007] It is the main object of the present invention to provide a
treading apparatus which has a simple and inexpensive
structure.
[0008] Another object of the present invention is to provide a
treading apparatus which allows to regulate treading amplitude.
[0009] A further object of the present invention is to provide a
treading apparatus which allows to regulate treading speed.
[0010] The present invention can be more fully understood by
reference to the following description and accompanying
drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] FIG. 1 is a perspective view of the treading apparatus of
the present invention.
[0012] FIG. 2 is a perspective view of the treading apparatus of
the present invention, when partly disassembled.
[0013] FIG. 3 is a side view of the left and right guided rods, the
left and right oil cylinders and the base frame of the present
invention.
[0014] FIG. 4-7 are schematic illustrations of oil flow between the
oil cylinders of the present invention.
[0015] FIG. 8 (prior art) is a side view of a conventional treading
apparatus.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0016] As shown in FIGS. 1 and 2, the treading apparatus of the
present invention mainly comprises: a base frame 1; a rear support
2, mounted on a rear side of the base frame 1; an oil cylinder base
4 in front of the rear support 2, carrying communicating left and
right oil cylinders 5, 6; left and right guided rods 51, 61,
entering the left and right oil cylinders 5, 6, respectively; left
and right treadles 7, 8, hingedly connected with the rear support 2
and performing an alternating treading movement; left and right
connecting rods 71, 81, attached to the left and right treadles 7,
8, respectively, and having far ends on which rolls 72, 82 are set;
left and right treading plates 73, 83, mounted on the left and
right treadles 7, 8, respectively; an oil buffer 9, communicating
with the left and right oil cylinders 5, 6; and a throttle valve
95. When the left and right treadles 7, 8 are tread on, the left
and right rolls 72, 82 drive vertical movements of the left and
right guided rods 51, 61, causing flow of oil 40 during the
treading movement.
[0017] Referring to FIGS. 1-3, the left and right oil cylinders 5,
6 are placed below the left and right rolls 72, 82. During the
treading movement, the guided rods 51, 61 are alternately pushed
down, causing oil 40 alternately to flow to the right and to the
left.
[0018] A main characteristic of the present invention is the oil
buffer 9, which is located on a conduit between the left and right
oil cylinders 5, 6. The oil buffer 9 has a volume regulator 93,
which comprises a vessel (shown as the oil buffer 9) and an
adjusting screw 91. The adjusting screw 91 vertically enters the
vessel, reducing oil volume in the vessel by a displaced volume 92.
Turning the adjusting screw 91 varies the displaced volume 92.
[0019] When, as shown in FIG. 4, the adjusting screw 91 has a
lowermost position, the displaced volume 92 is maximal, and a
minimum volume of oil fills the oil buffer 9. Then pushing down the
left treadle 7 will raise the right treadle by a maximum
amplitude.
[0020] When on the other hand, as shown in FIG. 5, the adjusting
screw 91 has a uppermost position, the displaced volume 92 is
minimal, and a maximum volume of oil fills the oil buffer 9. Then
pushing down the left treadle 7 will raise the right treadle by a
comparatively small amplitude.
[0021] Thus regulating the volume of oil filling the oil buffer 9
controls the amplitude of the treading movement of the left and
right treadles 7, 8.
[0022] Another main characteristic of the present invention is the
throttle valve 95, which is located on the conduit between the left
and right oil cylinders 5, 6. A preferred embodiment thereof has a
throttle screw 96 inserted in a tubelet 97. Turning the throttle
screw 96 varies a cross-section of the conduit
[0023] When, as shown in FIG. 6, the throttle screw 96 has a
lowermost position, the conduit has a minimal cross-section, so
that oil flow between the left and right oil cylinders 5, 6 is
slow, requiring great force.
[0024] When on the other hand, as shown in FIG. 7, the throttle
screw 96 has a uppermost position, the conduit has a maximal
cross-section, facilitating and speeding up oil flow between the
left and right oil cylinders 5, 6.
[0025] Thus regulating the cross-section of the conduit allows
controlling the speed of the treading movement.
[0026] The volume regulator 93 of the present invention allows to
control the amplitude of the treading movement, while the throttle
valve 95 allows to control the speed of the treading movement.
Therefore, the present invention is adaptable to the needs of
various users of all ages. The volume regulator 93 and the throttle
valve 95 are usable separately or combined.
[0027] While the invention has been described with reference to a
preferred embodiment thereof, it is to be understood that
modifications or variations may be easily made without departing
from the spirit of this invention which is defined by the appended
claims.
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