U.S. patent application number 10/900631 was filed with the patent office on 2006-03-16 for racing type pedal for bicycle.
Invention is credited to Jin-Long Xie.
Application Number | 20060053963 10/900631 |
Document ID | / |
Family ID | 36032454 |
Filed Date | 2006-03-16 |
United States Patent
Application |
20060053963 |
Kind Code |
A1 |
Xie; Jin-Long |
March 16, 2006 |
RACING TYPE PEDAL FOR BICYCLE
Abstract
A racing type pedal includes a main body, a pivot hook, a limit
member, an adjusting bolt, a press block, and two torsion springs.
Thus, the movement of the adjusting bolt is limited by the limit
member, and the movement of the press block is limited by the
torsion springs, so that the adjusting bolt and the press block
form a linear movement without deflection, thereby producing an
evenly distributed shearing stress between the adjusting bolt and
the press block, thereby preventing the adjusting bolt and the
press block from being worn out due to an uneven shearing
stress.
Inventors: |
Xie; Jin-Long; (Taichung,
TW) |
Correspondence
Address: |
NIKOLAI & MERSEREAU, P.A.
900 SECOND AVENUE SOUTH
SUITE 820
MINNEAPOLIS
MN
55402
US
|
Family ID: |
36032454 |
Appl. No.: |
10/900631 |
Filed: |
July 29, 2004 |
Current U.S.
Class: |
74/594.6 |
Current CPC
Class: |
Y10T 74/217 20150115;
B62M 3/086 20130101; Y10T 74/2168 20150115 |
Class at
Publication: |
074/594.6 |
International
Class: |
G05G 1/14 20060101
G05G001/14 |
Claims
1. A racing type pedal, comprising: a main body; a pivot hook
pivotally mounted on the main body by a pivot shaft; a metallic
bushing mounted on the pivot hook and having a first end formed
with a mounting tube extended through the pivot hook and directed
toward the main body; an adjusting bolt mounted on the bushing and
having a distal end extended through and protruding outward from
the mounting tube of the bushing; a press block mounted on the
distal end of the adjusting bolt and located between the main body
and the pivot hook; and two torsion springs each mounted on the
pivot shaft and each having a first end urged on the main body and
a second end urged on the press block; wherein the pivot hook has a
back plate having an inside formed with a through hole mounted on
the mounting tube of the bushing; wherein the through hole of the
back plate of the pivot hook has a side formed with a tapered
opening having a periphery formed with a flattened edge, and the
bushing has a second end formed with a tapered head mounted in the
tapered opening of the back plate of the pivot hook and having a
periphery formed with a flattened face rested on the flattened edge
of the tapered opening of the back plate of the pivot hook.
2. (canceled)
3. (canceled)
4. The racing type pedal in accordance with claim 1, wherein the
pivot hook is integrally formed with the bushing.
5. A racing type pedal, comprising: a main body; a pivot hook
pivotally mounted on the main body by a pivot shaft; a metallic
bushing mounted on the pivot hook and having a first end formed
with a mounting tube extended through the pivot hook and directed
toward the main body; an adjusting bolt mounted on the bushing and
having a distal end extended through and protruding outward from
the mounting tube of the bushing; a press block mounted on the
distal end of the adjusting bolt and located between the main body
and the pivot hook; and two torsion springs each mounted on the
pivot shaft and each having a first end urged on the main body and
a second end urged on the press block; wherein the press block has
two ends each formed with a bent first limit plate rested on the
second end of the respective torsion spring and has an edge formed
with a bent second limit plate rested on the second end of each of
the torsion springs, so that the torsion springs form a double
limit effect on the press block.
6. The racing type pedal in accordance with claim 1, wherein the
second end of each of the torsion springs has a distal end formed
with a bent abutment rested on the press block.
7. The racing type pedal in accordance with claim 1, wherein the
press block has a center formed with a screw bore screwed onto the
distal end of the adjusting bolt.
8. The racing type pedal in accordance with claim 1, wherein the
main body has a forked end formed with two spaced posts each formed
with a catch block urged on the first end of the respective torsion
spring.
9. The racing type pedal in accordance with claim 1, wherein the
pivot hook has two side plates each formed with a pivot hole
pivotally mounted on the pivot shaft.
10. The racing type pedal in accordance with claim 1, wherein the
pivot hook has an inside formed with two recesses to receive the
torsion springs.
11. A racing type pedal, comprising: a main body; a pivot hook
pivotally mounted on the main body by a pivot shaft; a support
plate mounted on the pivot hook and formed with a through hole; an
adjusting bolt mounted on the support plate and having a distal end
extended through and protruding outward from the through hole of
the support plate; a limit member mounted on the support plate and
rested on the adjusting bolt; a press block mounted on the distal
end of the adjusting bolt and located between the main body and the
pivot hook; and two torsion springs each mounted on the pivot shaft
and each having a first end urged on the main body and a second end
urged on the press block.
12. The racing type pedal in accordance with claim 11, wherein the
limit member is an arc-shaped catch plate.
13. The racing type pedal in accordance with claim 11, wherein the
limit member is a mounting tube.
14. The racing type pedal in accordance with claim 11, wherein the
press block has two ends each formed with a bent first limit plate
rested on the second end of the respective torsion spring and has
an edge formed with a bent second limit plate rested on the second
end of each of the torsion springs.
15. The racing type pedal in accordance with claim 11, wherein the
second end of each of the torsion springs has a distal end formed
with a bent abutment rested on the press block.
16. The racing type pedal in accordance with claim 11, wherein the
main body has a forked end formed with two spaced posts each formed
with a catch block urged on the first end of the respective torsion
spring.
17. The racing type pedal in accordance with claim 11, wherein the
pivot hook has two side plates each pivotally mounted on the pivot
shaft.
18. The racing type pedal in accordance with claim 11, wherein the
press block has a center formed with a screw bore screwed onto the
distal end of the adjusting bolt.
19. The racing type pedal in accordance with claim 11, wherein the
pivot hook is an integrally formed closed frame having a hollow
face integrally formed with the support plate.
20. The racing type pedal in accordance with claim 11, wherein the
limit member is integrally protruded outward from a side of the
through hole of the support plate.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a racing type pedal, and
more particularly to a racing type pedal for a bicycle.
[0003] 2. Description of the Related Art
[0004] In general, the racing type pedal for a bicycle includes a
road-use pedal and a mountaineering pedal, and the two different
types of pedals need to mate with two different types of shoes and
snap blocks. In practice, the snap block is mounted on the bottom
of the bicycle shoe and snapped onto the bicycle pedal to secure
the bicycle shoe on the bicycle pedal.
[0005] A conventional racing type pedal 3 in accordance with the
prior art shown in FIGS. 10 and 11 comprises a main body 30, a
hollow pivot hook 31 pivotally mounted on the main body 30 by a
pivot shaft 32 and having a side formed with a vertical plate 310
having a through hole 3101, an adjusting bolt 34 mounted on the
plate 310 of the pivot hook 31 extended through the through hole
3101 of the plate 310 of the pivot hook 31, a press block 35
mounted on the distal end of the adjusting bolt 34, and two torsion
springs 33 each mounted on the pivot shaft 32 and each having a
first end 330 urged on a block 301 of the main body 30 and a second
end 331 urged on the press block 35.
[0006] However, when the adjusting bolt 34 is rotated to move the
press block 35 to adjust the torque of the pivot hook 31, the
adjusting bolt 34 and the press block 35 are subjected to a
shearing force applied by the torsion springs 33, so that the
adjusting bolt 34 is easily deflected from the press block 35
during movement, thereby disengaging or wearing the adjusting bolt
34 and the press block 35. In addition, the plate 310 of the pivot
hook 31 is subjected to a force applied by the adjusting bolt 34,
so that the plate 310 of the pivot hook 31 is easily distorted or
deformed due to the applied force during a long-term
utilization.
SUMMARY OF THE INVENTION
[0007] In accordance with one embodiment of the present invention,
there is provided a racing type pedal, comprising:
[0008] a main body;
[0009] a pivot hook pivotally mounted on the main body by a pivot
shaft;
[0010] a metallic bushing mounted on the pivot hook and having a
first end formed with a mounting tube extended through the pivot
hook and directed toward the main body;
[0011] an adjusting bolt mounted on the bushing and having a distal
end extended through and protruding outward from the mounting tube
of the bushing;
[0012] a press block mounted on the distal end of the adjusting
bolt and located between the main body and the pivot hook; and
[0013] two torsion springs each mounted on the pivot shaft and each
having a first end urged on the main body and a second end urged on
the press block.
[0014] In accordance with another embodiment of the present
invention, there is provided a racing type pedal, comprising:
[0015] a main body;
[0016] a pivot hook pivotally mounted on the main body by a pivot
shaft;
[0017] a support plate mounted on the pivot hook and formed with a
through hole;
[0018] an adjusting bolt mounted on the support plate and having a
distal end extended through and protruding outward from the through
hole of the support plate;
[0019] a limit member mounted on the support plate and rested on
the adjusting bolt;
[0020] a press block mounted on the distal end of the adjusting
bolt and located between the main body and the pivot hook; and
[0021] two torsion springs each mounted on the pivot shaft and each
having a first end urged on the main body and a second end urged on
the press block.
[0022] The primary objective of the present invention is to provide
a racing type pedal having a torque adjustment function and has an
evenly distributed shearing stress.
[0023] Another objective of the present invention is to provide a
racing type pedal, wherein the movement of the adjusting bolt is
limited by the mounting tube of the bushing, and the movement of
the press block is limited by the torsion springs, so that the
adjusting bolt and the press block form a linear movement without
deflection, thereby producing an evenly and smoothly distributed
shearing stress between the adjusting bolt and the press block,
thereby preventing the adjusting bolt and the press block from
being worn out due to an uneven shearing stress.
[0024] A further objective of the present invention is to provide a
racing type pedal, wherein the pivot hook is mounted on the main
body easily and conveniently, thereby facilitating a user mounting
the racing type pedal.
[0025] A further objective of the present invention is to provide a
racing type pedal, wherein the adjusting bolt is mounted on the
back plate of the pivot hook by the metallic bushing, so that the
whole weight of the racing type pedal is reduced.
[0026] 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
[0027] FIG. 1 is a perspective view of a racing type pedal in
accordance with the preferred embodiment of the present
invention;
[0028] FIG. 2 is an exploded perspective view of the racing type
pedal as shown in FIG. 1;
[0029] FIG. 3 is a partially exploded perspective view of the
racing type pedal as shown in FIG. 1;
[0030] FIG. 4 is a bottom plan view of the racing type pedal as
shown in FIG. 1;
[0031] FIG. 5 is a plan cross-sectional view of the racing type
pedal as shown in FIG. 1;
[0032] FIG. 6 is a partially exploded perspective view of the
racing type pedal as shown in FIG. 1;
[0033] FIG. 7 is an exploded perspective view of a racing type
pedal in accordance with another embodiment of the present
invention;
[0034] FIG. 8 is a plan cross-sectional assembly view of the racing
type pedal as shown in FIG. 7;
[0035] FIG. 9 is a plan cross-sectional assembly view of a racing
type pedal in accordance with another embodiment of the present
invention;
[0036] FIG. 10 is an exploded perspective view of a conventional
racing type pedal in accordance with the prior art; and
[0037] FIG. 11 is a plan cross-sectional assembly view of the
conventional racing type pedal as shown in FIG. 10.
DETAILED DESCRIPTION OF THE INVENTION
[0038] Referring to the drawings and initially to FIGS. 1-6, a
racing type pedal 1 in accordance with the preferred embodiment of
the present invention comprises a main body 10, a pivot hook 12
pivotally mounted on the main body 10 by a pivot shaft 11, a
metallic bushing 16 mounted on the pivot hook 12 and having a first
end formed with a mounting tube 160 extended through the pivot hook
12 and directed toward the main body 10, an adjusting bolt 15
mounted on the bushing 16 and having a distal end extended through
and protruding outward from the mounting tube 160 of the bushing
16, a press block 14 mounted on the distal end of the adjusting
bolt 15 and located between the main body 10 and the pivot hook 12,
and two torsion springs 13 each mounted on the pivot shaft 11 and
each having a first end 130 urged on the main body 10 and a second
end 131 urged on the press block 14.
[0039] The main body 10 has a forked end formed with two spaced
posts 101 each formed with a catch block 102 urged on the first end
130 of the respective torsion spring 13.
[0040] The pivot hook 12 has a back plate 120 having an inside
formed with a through hole 1201 mounted on the mounting tube 160 of
the bushing 16. The through hole 1201 of the back plate 120 of the
pivot hook 12 has a side formed with a tapered opening 1202 having
a periphery formed with a flattened edge 1203. The pivot hook 12
has two side plates 121 each formed with a pivot hole 1210
pivotally mounted on the pivot shaft 11. The pivot hook 12 has an
inside formed with two recesses 122 to receive the torsion springs
13.
[0041] The bushing 16 has a second end formed with a tapered head
161 mounted in the tapered opening 1202 of the back plate 120 of
the pivot hook 12. The tapered head 161 of the bushing 16 has a
periphery formed with a flattened face 1610 rested on the flattened
edge 1203 of the tapered opening 1202 of the back plate 120 of the
pivot hook 12. Preferably, the pivot hook 12 is integrally formed
with the bushing 16.
[0042] The press block 14 has a center formed with a screw bore 140
screwed onto the distal end of the adjusting bolt 15. The press
block 14 has two ends each formed with a bent first limit plate 141
rested on the second end 131 of the respective torsion spring 13
and has an edge formed with a bent second limit plate 142 rested on
the second end 131 of each of the torsion springs 13, so that the
torsion springs 13 form a double limit effect on the press block
14.
[0043] The second end 131 of each of the torsion springs 13 has a
distal end formed with a bent abutment 1310 rested on the press
block 14.
[0044] In operation, when the adjusting bolt 15 is rotated to move
the press block 14 to adjust the torque of the pivot hook 12,
movement of the adjusting bolt 15 is limited by the mounting tube
160 of the bushing 16, so that the adjusting bolt 15 performs a
linear movement relative to the press block 14. In addition,
movement of the press block 14 is limited by the second end 131 of
each of the torsion springs 13, so that the press block 14 performs
a linear movement without deflection.
[0045] Accordingly, the movement of the adjusting bolt 15 is
limited by the mounting tube 160 of the bushing 16, and the
movement of the press block 14 is limited by the torsion springs
13, so that the adjusting bolt 15 and the press block 14 form a
linear movement without deflection, thereby producing an evenly
distributed shearing stress between the adjusting bolt 15 and the
press block 14, thereby preventing the adjusting bolt 15 and the
press block 14 from being worn out due to an uneven shearing
stress. In addition, the pivot hook 12 is mounted on the main body
10 easily and conveniently, thereby facilitating a user mounting
the racing type pedal. Further, the adjusting bolt 15 is mounted on
the back plate 120 of the pivot hook 12 by the metallic bushing 16,
so that the whole weight of the racing type pedal is reduced.
[0046] Referring to FIGS. 7 and 8, a racing type pedal 2 in
accordance with another embodiment of the present invention is
available for mountaineering comprises a main body 20, a pivot hook
22 pivotally mounted on the main body 20 by a pivot shaft 21, a
support plate 221 mounted on the pivot hook 22 and formed with a
through hole 222, an adjusting bolt 25 mounted on the support plate
221 and having a distal end extended through and protruding outward
from the through hole 222 of the support plate 221, a limit member
223 mounted on the support plate 221 and rested on the adjusting
bolt 25, a press block 24 mounted on the distal end of the
adjusting bolt 25 and located between the main body 20 and the
pivot hook 22, and two torsion springs 23 each mounted on the pivot
shaft 21 and each having a first end 230 urged on the main body 20
and a second end 231 urged on the press block 24.
[0047] The main body 20 has a forked end formed with two spaced
posts 201 each formed with a catch block 202 urged on the first end
230 of the respective torsion spring 23. The pivot hook 22 is an
integrally formed closed frame having a hollow face integrally
formed with the support plate 221. The pivot hook 22 has two side
plates 220 each pivotally mounted on the pivot shaft 21.
Preferably, the limit member 223 is an arc-shaped catch plate
integrally protruded outward from a side of the through hole 222 of
the support plate 221. The press block 24 has a center formed with
a screw bore 240 screwed onto the distal end of the adjusting bolt
25. The press block 24 has two ends each formed with a bent first
limit plate 241 rested on the second end 231 of the respective
torsion spring 23 and has an edge formed with a bent second limit
plate 242 rested on the second end 231 of each of the torsion
springs 23, so that the torsion springs 23 form a double limit
effect on the press block 24. The second end 231 of each of the
torsion springs 23 has a distal end formed with a bent abutment
2310 rested on the press block 24.
[0048] In operation, when the adjusting bolt 25 is rotated to move
the press block 24 to adjust the torque of the pivot hook 22,
movement of the adjusting bolt 25 is limited by the limit member
223, so that the adjusting bolt 25 has a linear movement relative
to the press block 24. In addition, movement of the press block 24
is limited by the second end 231 of each of the torsion springs 23,
so that the press block 24 has a linear movement without
deflection.
[0049] Referring to FIG. 9, the limit member is a mounting tube
224.
[0050] Although the invention has been explained in relation to its
preferred embodiment(s) as mentioned above, it is to be understood
that many other possible modifications and variations can be made
without departing from the scope of the present invention. It is,
therefore, contemplated that the appended claim or claims will
cover such modifications and variations that fall within the true
scope of the invention.
* * * * *