U.S. patent application number 12/013481 was filed with the patent office on 2009-07-16 for bicycle seat tube adjusting assembly.
Invention is credited to Douglas CHIANG.
Application Number | 20090179467 12/013481 |
Document ID | / |
Family ID | 40846217 |
Filed Date | 2009-07-16 |
United States Patent
Application |
20090179467 |
Kind Code |
A1 |
CHIANG; Douglas |
July 16, 2009 |
BICYCLE SEAT TUBE ADJUSTING ASSEMBLY
Abstract
A bicycle seat tube adjusting assembly includes: a rod body
which is installed with a positioning seat; a first clamping unit
and a second clamping unit being assembled with the positioning
seat; two channels being formed between the first clamping unit and
the second clamping unit for clamping; an adjusting unit installed
with the second clamping unit; the adjusting unit having at least
one protrusion and at least one tightening unit abutting against
the protrusion; and a positioning unit resting against the
positioning seat; and wherein by the adjusting unit, the first
clamping unit and second clamping unit are adjusted on the
positioning seat so as to provide a preferred riding position.
Inventors: |
CHIANG; Douglas; (Taichung
Hsien, TW) |
Correspondence
Address: |
Chien-Hui Su
P. O. Box 70-121 Taichung
Taichung City
40899
TW
|
Family ID: |
40846217 |
Appl. No.: |
12/013481 |
Filed: |
January 14, 2008 |
Current U.S.
Class: |
297/215.13 |
Current CPC
Class: |
B62J 1/08 20130101 |
Class at
Publication: |
297/215.13 |
International
Class: |
B62J 1/10 20060101
B62J001/10 |
Claims
1. A bicycle seat tube adjusting assembly, comprising: a rod body
which is installed with a positioning seat; a positioning unit
resting against the positioning seat, the positioning unit having
two slots defined in a top thereof and extending therethrough, the
positioning unit having two through holes formed in a side edge and
extending laterally into the positioning unit such that each
through hole joins one of the two slots; a second clamping unit
connected to the positioning unit, the second clamping unit having
two channels formed in a top thereof and two protrusions extending
from a bottom thereof, each protrusion movably received in one of
the two slots in the positioning unit; a first clamping unit
connected to the second clamping unit, the first clamping unit
having two channels formed in a bottom thereof, each channel in the
first clamping unit corresponding to one of the two channels in the
second clamping unit for clamping a cushion rod; and two tightening
units respectively passing through the two through holes in the
positioning unit and abutted against the two protrusions in the
second clamping unit; wherein the first clamping unit and the
second clamping unit are driven to move when screwing the two
tightening units.
2. (canceled)
3. (canceled)
4. The bicycle seat tube adjusting assembly as claimed in claim 1,
wherein the positioning unit is formed with a connecting shaft; and
the second clamping unit is formed with an axial hole; the
connecting shaft is combinable into the axial hole so that during
adjustment, the second clamping unit and the positioning unit are
retained at the same horizontal plane without shifting.
5. The bicycle seat tube adjusting assembly as claimed in claim 1,
further comprising: at least one screw unit for locking the first
clamping unit and second clamping unit.
6. The bicycle seat tube adjusting assembly as claimed in claim 5
further comprising at least one retaining seat underlying the
positioning unit corresponding to the at least one screw unit,
wherein the at least one screw unit passes through the at least one
retaining seat for enhancing the clamping effect.
7. The bicycle seat tube adjusting assembly as claimed in claim 1,
wherein a size of each slot in the positioning unit is greater than
that of the corresponding one of the two protrusions in the second
clamping unit to allow adjustment therein.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to bicycles, and particularly
to a bicycle seat tube adjusting assembly which is installed with
an adjust seat and the seat makes the seat tube can adjust the seat
so as to provide a preferred riding position.
BACKGROUND OF THE INVENTION
[0002] Bicycle has become a popular exercise, amusement and leisure
tool. More and more people rides bicycles in daily life or in
leisure time. It is not only improve the health of the driver, but
also provide the pressure feeling to driver because in driving, the
driver can see the beautiful scenery in driving path and breathes
clean air.
[0003] Thus it is important that the cushion of the bicycle must
make the driver feel comfortable with less fatigue driving so as to
have a better affect in driving. As a result, the structure of the
cushion and seat tube become important in design of the bicycle.
The cushion must be soft and have preferred sock absorption
ability. The seat tube must be designed to suit the pose, habit and
size of the driver. In U.S. Pat. No. 5,466,042, the set tube is
installed with a positioning seat which includes a first clamping
unit and a second clamping unit. Two covers are transversally
installed between the clamping units. One side of the seat tube is
installed with a screw unit and another side thereof is installed
with another screw unit. The screw unit has a teethed disk. Each
screw unit passes through a cover and is assembled to the clamping
unit and the positioning seat. In the unit, as the teethed disk is
driven, one screw units will be tightened or released so as to
adjust the orientation and position of the cushion.
[0004] However the structure has complicated structure and higher
cost. The assembly is tedious and in adjustment, the screw units at
two sides must be screwed at the same time as to adjustment the
cushion. The operation is tedious and time consumed. Besides, in
maintenance or repair, the whole structure must be detached for
updating the parts, and then they are assembled again and the
adjustment is done again for having a desiring orientation and
position. Thus the prior art structure has longer manufacturing
time, and greater producing cost, while the assembly and
maintenance work are time consumed and tedious.
SUMMARY OF THE INVENTION
[0005] The present invention relates to a bicycle seat tube
adjusting assembly which has a simple structure and need less cost
and manufacturing time. Thereby the assembly and maintenance can be
done easily and conveniently.
[0006] To achieve above object, the present invention provides a
bicycle seat tube adjusting assembly having a rod body installed
with a positioning seat. A positioning unit rests against the
positioning seat. The positioning unit has two slots defined in a
top thereof and extending therethrough. The positioning unit has
two through holes formed in a side edge and extending laterally
into the positioning unit such that each through hole joins one of
the two slots. A second clamping unit is connected to the
positioning unit. The second clamping unit has two channels formed
in a top thereof and two protrusions extending from a bottom
thereof. Each protrusion is movably received in one of the two
slots in the positioning unit. A first clamping unit is connected
to the second clamping unit. The first clamping unit has two
channels formed in a bottom thereof. Each channel in the first
clamping unit corresponds to one of the two channels in the second
clamping unit for clamping a cushion rod. Two tightening units
respectively pass through the two through holes in the positioning
unit and are abutted against the two protrusions in the second
clamping unit.
[0007] 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
[0008] FIG. 1 is an exploded perspective view of a bicycle seat
tube adjusting assembly of the present invention;
[0009] FIG. 2 is an assembled perspective view of the bicycle seat
tube adjusting assembly of the present invention;
[0010] FIG. 3 is a side plane view of the bicycle seat tube
adjusting assembly of the present invention; and
[0011] FIG. 4 is a side plane operational view of the bicycle seat
tube adjusting assembly of the present invention showing the
adjustment.
DETAILED DESCRIPTION OF THE INVENTION
[0012] In order that those skilled in the art can further
understand the present invention, a description will be provided 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.
[0013] The present invention relates to a bicycle seat tube
adjusting assembly, with reference to FIGS. 1 and 2, the assembly
body 1 includes a rod body 10. A positioning seat 11 is installed
in the rod body 10. A first clamping unit 12 and a second clamping
unit 13 are mounted on a side of the positioning seat 11 for
corresponding to the rod body 10. The first clamping unit 12 has
two channels 121 and the second clamping unit 13 has two channels
131. After combination of the first clamping unit 12 and second
clamping unit 13, the channels 121, 131 are used to clamp a seat
(not shown) so as to retain the seat between the first clamping
unit 12 and second clamping unit 13.
[0014] The first clamping unit 12 has two screw holes 122 defined
therein. The second clamping unit 13 has one axial hole 132 defined
therein.
[0015] An adjusting unit 14 is assembled with the second clamping
unit 13. The adjusting unit 14 has a positioning unit 141 mounted
on the positioning seat 11. Two protrusions 142 are extended from a
bottom of the second clamping unit 13 and the adjusting unit 14 has
two slots 1412 corresponding to the two protrusions 142 of the
second clamping unit 13. A size of the slot 1412 is greater than
that of the protrusion 142. The positioning unit 141 has a
connecting shaft 1411 formed thereon for corresponding to the axial
hole 132 of the second clamping unit 13. The positioning unit 141
has two through holes 1413 formed in a side edge and extending
laterally into the positioning unit 141 such that each through hole
1413 joins one of the two slots 1412. Two tightening units 143 are
respectively laterally mounted in the through holes 1413. In
assembly, the connecting shaft 1411 is engaged with the axial hole
132 and the slots 1412 is assembled with the protrusions 142. The
through hole 1413 is assembled with the tightening units 143 so
that one end of the tightening unit 143 abuts against the sides of
the protrusions 142.
[0016] The positioning seat 11 has two penetrating holes 111
defined therein. Two retaining seats 112 resist against a lower
side of the positioning seat 11 opposite to the side of the
positioning seat 11 which is installed with the adjusting unit 14.
Each retaining seat 112 is screwed by a screw unit 113 which
protrudes out from the retaining seat 112 and the penetrating hole
111 so as to lock into the screw hole 122 in the first clamping
unit 12. By tightening the screw unit 113, the first clamping unit
12 and the positioning seat 11 are tightly engaged such that the
assembly body 1 has a firm structure.
[0017] Referring to FIGS. 3 and 4, in the present invention, the
seat has two cushion rod 20 respectively clamped by the first
clamping unit 12 and the second clamping unit 13. The tightening
unit 143 of the adjusting unit 14 is inward screwed to push the
protrusions 142 to move along the direction of the force applied
such that the second clamping unit 13, the cushion rod 20 and the
first clamping unit 12 are move along the same direction. The
connecting shaft 1411 is engaged to the axial hole 132 for
retaining the positioning unit 141 and the second clamping unit 13
at the same horizontal plane in the adjusting process without
shifting. The positioning effect of the positioning unit 141
relative to the second clamping unit 13 is improved such that the
cushion rod 20 can be easily adjusted. The positioning unit 141 can
be adjusted relative to the positioning seat 11 such that the
cushion rod 20 can be adjusted finely.
[0018] The present invention has a simple structure and can be made
easily. Only by the tightening engagement between the tightening
unit 143 and the protrusion 142, an adjusting effect can be
achieved so that the operation is easy and the maintenance and
repair works can be done easily.
[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.
* * * * *