Note: Descriptions are shown in the official language in which they were submitted.
KICKSTAND FOR BIKES
BACKGROUND OF THE INVENTION
1. Fields of the invention
The present invention relates to a kickstand of a bicycle, and more
particularly, to a kickstand that is secured to the chainstay firmly.
2. Descriptions of Related Art
The conventional kickstand of a bicycle has a head connected to
the bicycle frame such as the chaistay, and includes a leg which is pivotably
connected to the head. When parking the bicycle, the leg is kicked
downward and contacts the ground, and the leg extends at angle relative to
the bicycle so as to support the bicycle. The convdention kickstands are
disclosed to Taiwanese Utility Models M290841 and M468466, and
CN210555274U of China.
However, the shape of the cross section of the chainstay is round,
so that the head of the kickstand has to be curve to as to be mounted to the
tube of the chainstay, and two bolts are used to secure the tube of the
chainstay to the head of the kickstand. Usually the tube of the chainstay is
smooth, and the kickstand is difficult to be properly secured to the tube. In
other words, the head of the kickstand eventually will slip or loose relative
to the tube of the chainstay by vibration or impact. Therefore, the users have
to check the tightness of the bolts to ensure that the kickstand functions as
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expected. On the contrary, if the bolts are overly tightened, the head of the
kickstand may be deformed, and the deformed head cannot hold the tube of
the chain stay, or even broken.
The present invention intends to provide a kickstand of a bicycle
to eliminate shortcomings mentioned above.
SUMMARY OF THE INVENTION
The present invention relates to a kickstand and comprises a head
and a leg is pivotably connected to the lower end of the head. A clamp is
connected to the head by multiple locking members. A first pad is located at
the inside of the clamp and faces the head. Multiple screws are threadedly
connected to the clamp and each include a contact end. The contact ends of
the multiple screws extend beyond the clamp and contact against the first
pad to partially deform the first pad. The tube of the chainstay is clamp
between the head and the clamp.
The present invention will become more obvious from the
following description when taken in connection with the accompanying
drawings which show, for purposes of illustration only, a preferred
embodiment in accordance with the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a perspective view to show the kickstand of the present
invention;
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Fig. 2 is an exploded view of the kickstand of the present
invention;
Fig. 3 is a perspective view to show that the kickstand of the
present invention is connected to a bicycle;
Fig. 4 is a cross sectional view, taken along line IV-Iy in Fig. 3;
Fig. 5 is a cross sectional view to show that the screws contact
against the first pad to clamp the chainstay;
Fig. 6 is a cross sectional view of the clamp of the kickstand of the
present invention;
Fig. 7 is a cross sectional view to show that the tube of the
chainstay with a polygonal cross section is clamped between the clamp and
the head of the kickstand of the present invention, and
Fig. 8 is an exploded view to show another embodiment of the
kickstand of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to Figs. 1 to 5, the kickstand 100 of the present
invention comprises a head 200 and a leg 300 which is pivotably connected
to the lower end of the head 200. A clamp 400 is connected to the head 200
by multiple locking members 110. A first pad 500 is located at the inside
410 of the clamp 400 and facing the head 200. Multiple screws 600 are
threadedly connected to the clamp 400 and each include a contact end 610
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and a driving end 620. The contact ends 610 of the multiple screws 600
extend beyond the clamp 400 and contact against the first pad 500 to
partially deform the first pad 500 when the head 200 is mounted to the
chainstay 710 of a bicycle 700. In this embodiment, there are three locking
members 110, two of the three locking members 110 extend through the
clap 400 and go above the chainstay 710 as shown in Fig. 3, and are
connected to the head 200. The third one of the three locking members 110
extends through the clap 400 and go below the chainstay 710 and is
connected to the head 200. In this embodiment, there are four screws 600.
When installing the kickstand 100 to the bicycle 700, the head 200
is located between the wheel and the chainstay 710, and the clamp 400 is
located at outside of the chainstay 710. The bolts 110 extend through the
clamp 400 and are threadedly connected to the head 200. The first pad 500
partially contacts the chainstay 710, and then rotating the screws 600 by
using a tool (not shown) toward the clamp 400 until the contact ends 610 of
the multiple screws 600 extend beyond the clamp 400 and contact against
the first pad 500 to partially deform the first pad 500 which contacts against
the chainstay 710 of the bicycle 700. There are four contact points of the
first pad 500 against the chainstay 710 of the bicycle 700 so that the
kickstand 100 does not rotate or slip relative to the chainstay 710.
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Specifically, the inside 410 of the clamp 400 includes a first face
411, a second face 412 and a curve face 413 which is formed between the
first and second faces 411, 412. By the inside 410 of the clamp 400, the
chainstay 710 of different cross sections, such as round tube, oval tube,
teardrop shaped tube or polygonal tube can be clamped by the clamp 400
and the head 200 as shown in Figs. 6 and 7.
The clamp 400 includes an outside 420 which includes a first
protrusion 421, a second protrusion 422 and a recessed area 423 formed
between the first and second protrusions 421, 422. Multiple first threaded
holes 424 are defined through the first protrusion 421 and the first face 411
of the clamp 400. Multiple second threaded holes 425 are defined through
the second protrusion 422 and the second face 412 of the clamp 400. The
screws 600 are threadedly connected to the first and second threaded holes
424, 425. The axes of the first and second threaded holes 424, 425 extend
toward different directions so that the screws 600 contact the first pad 500
and apply forces to the chainstay 710 in different directions to ensure that
the chainstay 710 is secured in a balance way. The recessed area 423
reduces weight of the clamp 400. The first and second protrusions 421, 422
are more visible when assembling the clamp 400 to the head 200.
As shown in Fig. 6, each of the first threaded holes 424 includes a
first axis Li, and each of the second threaded holes 425 includes a second
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axis L2. An angle of 50 degrees to 70 degrees is formed between the first
and second axes Li, L2. Preferably, the angle is 60 degrees. Therefore, the
scres 600 apply forces to the first pad 500 and the chainstay 710 in multiple
directions.
As shown in Fig. 4, when the contact ends 610 of the screws 600
do not protrude beyond the first and second threaded holes 424, 425, the
driving end 620 of each of the screws 600 is protruded beyond the outside
420 of the clamp 400 to form the screws 600 as a warning status. When the
contact ends 610 of the screws 600 protrude beyond the first and second
threaded holes 424, 425, the driving end 620 of each of the screws 600 is
not protruded beyond the outside 420 of the clamp 400 to form the screws
600 as a contacting status. The first pad 500 is partially deformed in the
contacting status. As shown in Fig. 5, by the warning status and the
contacting status of the screws 600, the users can easily tell whether the
kickstand 100 is secured to the chainstay 710 or not.
It is noted that the first pad 500 includes a first contact portion 510
and two first lateral portions 520 which are formed to two sides of the first
contact portion 510. The first contact portion 510 includes a first outer face
530 and a first inner face 540 which is located opposite to the first outer
face 530. The first outer face 530 contacts the inside 410 of the clamp 400.
The two first lateral portions 520 respectively contact two lateral sides 430
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of the clamp 400. Therefore, the first pad 500 does not shake when it is
installed to the inside 410 of the clamp 400.
As shown in Fig. 8, the first outer face 530 of the first pad 500
includes separated first ridges 550 protruded toward the two first lateral
portions 520. The first ridges 550 provide friction between the first pad 500
and the chainstay 710.
The head 200 of the kickstand 100 includes an extension 210 and
a connection end 220. The connection end 220 is connected with the leg
300. The clamp 400 is connected to the extension 210 of the head 200 by
multiple bolts. A second pad 230 contacts the extension 210 of the head 200.
The second pad 230 includes a second contact portion 231 and two second
lateral portions 232 which are formed to two sides of the second contact
portion 231. The second contact portion 231 includes a second outer face
233 and a second inner face 234 which is located opposite to the second
outer face 233. The second outer face 233 contacts the extension 210 of the
head 200. The two second lateral portions 232 respectively contact two
sides of the extension 210. The second outer face 233 of the second pad 230
includes separated second ridges 235 protruded toward the two second
lateral portions 232. By the first and second pads 500, 230, the kickstand
100 receives forces from two directions to be connected to the chainstay
710.
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While we have shown and described the embodiment in
accordance with the present invention, it should be clear to those skilled in
the art that further embodiments may be made without departing from the
scope of the present invention.
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