U.S. patent application number 11/047490 was filed with the patent office on 2006-08-03 for elevation-adjusting device for a seat of an exercise bicycle.
Invention is credited to Hai Pin Kuo.
Application Number | 20060172866 11/047490 |
Document ID | / |
Family ID | 36757336 |
Filed Date | 2006-08-03 |
United States Patent
Application |
20060172866 |
Kind Code |
A1 |
Kuo; Hai Pin |
August 3, 2006 |
Elevation-adjusting device for a seat of an exercise bicycle
Abstract
An elevation-adjusting device serves for a seat of an exercise
bicycle. The exercise bicycle is capable of standing on the ground.
The device comprises a positioning device having a buckling post;
the buckling post having a buckling section; an outer tube; an
inner tube installed within the outer tube; the elevation of the
inner tube being adjustable with respect to the outer tube; the
inner tube being fixed to the outer tube by using the positioning
device to be buckled into one of a plurality of positioning holes
of the inner tube; and each of the positioning hole having a
respective lip which obliquely protrudes from an inner wall at a
lower end of the positioning hole; thereby, the buckling section of
the buckling post of the positioning device being tightly secured
to the positioning hole and the inner tube being lifted easily and
smoothly.
Inventors: |
Kuo; Hai Pin; (Tainan,
TW) |
Correspondence
Address: |
Hai Pin Kuo
235 Chung-Ho
Box 8-24
Taipei
TW
|
Family ID: |
36757336 |
Appl. No.: |
11/047490 |
Filed: |
February 1, 2005 |
Current U.S.
Class: |
482/57 |
Current CPC
Class: |
A63B 2225/093 20130101;
A63B 22/0605 20130101 |
Class at
Publication: |
482/057 |
International
Class: |
A63B 22/06 20060101
A63B022/06; A63B 69/16 20060101 A63B069/16 |
Claims
1. An elevation-adjusting device for a seat of an exercise bicycle;
the exercise bicycle being capable of standing on the ground; the
exercise bicycle moving when the user treads upon treadles of the
exercise bicycle; the device comprising: a positioning device
having a buckling post; the buckling post having a buckling
section; an outer tube; an inner tube installed within the outer
tube; the elevation of the inner tube being adjustable with respect
to the outer tube; the inner tube being fixed to the outer tube by
using the positioning device to be buckled into one of a plurality
of positioning holes of the inner tube; and each of the positioning
hole having a respective lip which obliquely protrudes from an
inner wall at a lower end of the positioning hole; thereby, the
buckling section of the buckling post of the positioning device
being tightly secured to the positioning hole and the inner tube
being lifted easily and smoothly.
2. An elevation-adjusting device for a seat of an exercise bicycle;
the exercise bicycle being capable of standing on the ground; the
exercise bicycle moving when the user treads upon treadles of the
exercise bicycle; the device comprising: an outer tube extended
from the body; an inner tube being installed within the outer tube;
a top of the inner tube having a seat; a positioning base installed
near a top of the outer tube; the positioning base being a hollow
cylinder and having an inner hollow portion; an inner wall of the
positioning base at the end of the inner hollow portion being
formed with female thread; each of an upper end and a lower end of
the positioning base having a respective round hole; the
positioning base being communicated to the inner hollow portion
through a via hole; and a positioning device formed by a main body,
a spring and a cover; a front end of the main body being a front
portion with male thread; an annular neck being formed behind the
front portion having a radius smaller than that of the front
portion; a middle section being formed behind the annular neck; the
radius of the middle section being identical to that of the front
portion; a combining end of a straight groove extending backwards
from the middle section; the combining end being tightly engaged to
a cover; an inner side of the cover being formed with straight
embedding strips; the main body being installed with a penetrating
round receiving groove at the front portion for receiving the
spring and a buckling post; one end of the spring resisting against
a buckling section of the buckling post; a neck section extending
from the buckling section of the buckling post; the radius of the
neck section being smaller than that of the buckling section; a
distal end of the neck section being extended with a screw section;
the screw section having a smaller radius than that of the neck
section; the screw section having male thread; the screw section
being screwed to the cover; another end of the spring resisting
against the cover; a front end of the main body screwing into the
female thread of the positioning base; pins passing through the
round holes so as to resist against the annular neck of the main
body; wherein by above structure, the elevation of the inner tube
is adjustable with respect to the outer tube easily and smoothly.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to exercise bicycles, and
particularly to an exercise bicycle, wherein a buckling section of
a buckling post serves to buckle a position hole. The positioning
hole has a lip tilt to the inner tube so that the buckling section
is stably positioned easily with a preferred performance.
BACKGROUND OF THE INVENTION
[0002] In the prior art, the seat of an exercise bicycle is
adjusted by moving an inner tube with respect to the outer tube,
where the seat is located upon the outer tube and the inner tube.
The inner tube is placed within the outer tube. Spring-like pins
are inserted into the positioning holes of the inner tube so as to
fix the inner tube to the outer tube to a desired elevation. The
prior art way has been used for a long time and is a convenient
way. However since the inner tube has hollowed positioning holes,
when the pins are buckled to the positioning hole, in exercise, the
inner tube is easy to vibrate so that the structure is
unstable.
SUMMARY OF THE INVENTION
[0003] Accordingly, the primary object of the present invention is
to provide an exercise bicycle, wherein a buckling section of a
buckling post serves to buckle a position hole. The positioning
hole has a lip tilt to the inner tube so that the buckling section
is stably positioned easily with a preferred performance.
[0004] To achieve above object, the present invention provide an
elevation-adjusting device for a seat of an exercise bicycle; the
exercise bicycle being capable of standing on the ground; the
exercise bicycle moving when the user treads upon treadles of the
exercise bicycle. The device comprises a positioning device having
a buckling post; the buckling post having a buckling section; an
outer tube; an inner tube installed within the outer tube; the
elevation of the inner tube being adjustable with respect to the
outer tube; the inner tube being fixed to the outer tube by using
the positioning device to be buckled into one of a plurality of
positioning holes of the inner tube; and each of the positioning
hole having a respective lip which obliquely protrudes from an
inner wall at a lower end of the positioning hole; thereby, the
buckling section of the buckling post of the positioning device
being tightly secured to the positioning hole and the inner tube
being lifted easily and smoothly.
[0005] The various objects and advantages of the present invention
will be more readily understood from the following detailed
description when read in conjunction with the appended drawing.
BRIEF DESCRIPTION OF THE DRAWINGS
[0006] FIG. 1 is an exploded perspective view of the present
invention.
[0007] FIG. 2 is a perspective view of the present invention.
[0008] FIG. 3 is a schematic view showing that the positioning
device of the present invention is buckled to the positioning hole
of the inner tube.
[0009] FIG. 4 is a schematic view showing the action of FIG. 3.
[0010] FIG. 5 is a schematic view showing that the positioning
device of the present invention is buckled to the inner tube.
DETAILED DESCRIPTION OF THE INVENTION
[0011] In order that those skilled in the art can further
understand the present invention, a description will be described
in the following in details. However, these descriptions and the
appended drawings are only used to cause those skilled in the art
to understand the objects, features, and characteristics of the
present invention, but not to be used to confine the scope and
spirit of the present invention defined in the appended claims.
[0012] With reference to FIG. 1, the exercise bicycle of the
present invention is illustrated. The exercise bicycle has a
bicycle has a body (not shown) which can stand on the ground. An
outer tube 1 is extended from the body. An inner tube 2 is
installed within the outer tube 1. A top of the inner tube 2 has a
seat 7 (referring to FIG. 3) for supporting a rider. A positioning
device is used to adjust the elevation of the inner tube 2 to lift
or descend with respect to the outer tube 1.
[0013] A positioning base 11 is installed near a top of the outer
tube 1. The positioning base 11 is a hollow cylinder and has an
inner hollow portion 12. An inner wall of the positioning base 11
at the end of the inner hollow portion 12 is formed with female
thread 14. Each of an upper end and a lower end of the positioning
base 11 has a respective round hole 13. The positioning base 11 is
communicated to the inner hollow portion 12 through a via hole
15.
[0014] The positioning device is formed by a main body 3, a spring
4 and a cover 6. A front end of the main body 3 is a front portion
31 having male thread. An annular neck 32 is formed behind the
front portion 31 having a radius smaller than that of the front
portion 31. A middle section 33 is formed behind the annular neck
32. The radius of the middle section 33 is identical to that of the
front portion 31. A combining end 34 of a straight groove 341
extends backwards from the middle section 33. The combining end 34
is tightly engaged to a cover 6. An inner side of the cover 6 is
formed with straight embedding strips 61. The main body 3 is
further installed with a penetrating round receiving groove 30 at
the front portion 31 for receiving the spring 4 and a buckling post
5. One end of the spring 4 resists against a buckling section 52 of
the buckling post 5. A neck section 51 extends from the buckling
section 52 of the buckling post 5. The radius of the neck section
51 is smaller than that of the buckling section 52. A distal end of
the neck section 51 is extended with a screw section 50 having a
smaller radius than that of the neck section 51. The screw section
50 has male thread. The screw section 50 is screwed to the cover 6.
Meanwhile, another end of the spring 4 resists against the cover 6.
A front end of the main body 3 screws to the female thread 14 of
the positioning base 11. Pins 16 and 17 passes through the round
holes 13 so as to resist against the annular neck 32 of the main
body 3. An assembly view is shown in FIG. 2.
[0015] Referring to FIGS. 3 to 5, the buckling section 52 of the
buckling post 5 of the positioning device is buckled to one of the
positioning holes 21 of the inner tube 2, as shown in FIG. 3.
[0016] When the inner tube 2 is fixed to a predetermined elevation,
if the user desires to change the elevation of the inner tube 2,
namely the elevation of the seat 7, as shown in FIGS. 4 and 5, the
user holds the cover 6 to pull out the buckling post 5. Since the
main body 3 is positioned by pins 16, 17 to be fixed therein, the
buckling post 5 is combined to the cover 6. When the cover 6 pulls
out, the buckling post 5 will be driven to move outwards.
Meanwhile, the buckling section 52 will compress the spring 4 to
retract out of the original positioning hole 21 (referring to FIG.
4). The user adjusts the inner tube 2 to a desired elevation. The
cover 6 then is released directly. By the resilient force of the
spring 4, the buckling post 5 can insert into the via hole 15 of
the positioning base 11 so as to be buckled to another positioning
hole 21, as shown in FIG. 5.
[0017] The positioning hole 21 of the present invention is not
completely hollowed. A lower edge of the positioning hole 21 has a
tilt lip 22 which obliquely protrudes from an inner wall of the
inner tube 2. When the inner tube 2 is to be adjusted to a higher
position, it is necessary to pull the cover 6, the lip 22 will pull
the inner tube 2 upwards along the slope thereof. After
positioning, the lip 22 resists against a front end of the buckling
end, and the inner tube 2 is tightly secured by the fixedness of
the buckling post 5.
[0018] Thereby in the prior art, the positioning hole 21 of the
inner tube 2 is hollowed completely, and no lip 22 is installed.
The stability is low. However in the present invention, by the
positioning hole 21 and the lip 22, the inner tube 2 can be lifted
upwards easily. Meanwhile, the buckling post 5 of the positioning
device will tightly secure to the positioning hole 21. The
stability is greatly increased.
[0019] The present invention is thus described, it will be obvious
that the same may be varied in many ways. Such variations are not
to be regarded as a departure from the spirit and scope of the
present invention, and all such modifications as would be obvious
to one skilled in the art are intended to be included within the
scope of the following claims.
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