U.S. patent application number 13/707813 was filed with the patent office on 2014-06-12 for folding device for golf trolley.
The applicant listed for this patent is MENG-JUNG WU. Invention is credited to MENG-JUNG WU.
Application Number | 20140159348 13/707813 |
Document ID | / |
Family ID | 50880116 |
Filed Date | 2014-06-12 |
United States Patent
Application |
20140159348 |
Kind Code |
A1 |
WU; MENG-JUNG |
June 12, 2014 |
FOLDING DEVICE FOR GOLF TROLLEY
Abstract
A folding device of the golf trolley is connected between a main
frame and a front frame of the golf trolley, and includes a first
connection member on the main frame and a second connection member
on the front frame. The first connection member has a locking
member and the second connection member has a pin which is located
corresponding to the locking member. A fixing sleeve is securely
mounted to the main frame. A movable sleeve is mounted to the front
frame. Two links are connected between two sides of the movable
sleeve and two side wheel units. A tube is pivotably connected
between the fixing sleeve and the movable sleeve. A positioning
member is connected to the tube and engaged with the front
frame.
Inventors: |
WU; MENG-JUNG; (TAINAN CITY,
TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
WU; MENG-JUNG |
TAINAN CITY |
|
TW |
|
|
Family ID: |
50880116 |
Appl. No.: |
13/707813 |
Filed: |
December 7, 2012 |
Current U.S.
Class: |
280/651 |
Current CPC
Class: |
B62B 2205/24 20130101;
B62B 2202/404 20130101; B62B 3/02 20130101; B62B 7/068 20130101;
B62B 3/12 20130101 |
Class at
Publication: |
280/651 |
International
Class: |
A63B 55/08 20060101
A63B055/08 |
Claims
1. A golf trolley comprising: a main frame having a handle
connected thereto; a front frame connected with a front wheel, two
side wheel units connected to two sides of the front frame; a
folding device connected between the main frame and the front
frame, the folding device having a pivotal unit which comprises a
first connection member on the main frame and a second connection
member on the front frame, the first connection member having a
locking member and the second connection member having a pin which
is located corresponding to the locking member; a fixing sleeve
securely mounted to the main frame; a movable sleeve mounted to the
front frame, two links connected between two sides of the movable
sleeve and the two side wheel units, and a tube pivotably connected
between the fixing sleeve and the movable sleeve, a positioning
member connected to the tube and engaged with the front frame.
2. The golf trolley as claimed in claim 1, wherein the first
connection member has a first toothed portion and the second
connection member has a second toothed portion.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Fields of the Invention
[0002] The present invention relates to a golf trolley, and more
particularly, to a folding device of the golf trolley.
[0003] 2. Descriptions of Related Art
[0004] The conventional golf trolley is used to carry the golf bag
and the golf clubs, and the golf trolley has wheels so that the
players can easily move their golf clubs with them. The golf
trolley is designed to be light in weight and easily folded when
not in use.
[0005] Taiwan Patent Publication No. M410587 discloses a golf
trolley with a top frame, a front frame and a rear frame, wherein
the top frame is connected with a handle and the rear frame is
connected with two rear wheels. A connection plate is connected
between the top frame and the rear frame. A rod is connected to the
top frame and the rear frame. The front frame is connected to the
top frame and has a front wheel. A link mechanism is connected
between the top frame and the front frame so as to fold the front
frame and the front wheel toward the rear wheels. It is noted that
the front wheels are moved with the front frame so that the players
do not need to collect or position the front wheels which always
are attached with grasses and earth. However, the golf trolley has
too many parts which are inconvenient for the players to expand and
fold.
[0006] The present invention intends to provide a golf trolley to
improve the shortcomings of the conventional golf trolley.
SUMMARY OF THE INVENTION
[0007] The present invention relates to a golf trolley and
comprises a main frame having a handle connected thereto, and a
front frame connected with a front wheel. Two side wheel units are
connected to two sides of the front frame. A folding device is
connected between the main frame and the front frame, and the
folding device comprises a pivotal unit which has a first
connection member on the main frame, and a second connection member
on the front frame. The first connection member has a locking
member and the second connection member has a pin which is located
corresponding to the locking member. The first and second
connection members are pivotably connected to each other. When the
trolley is expanded, the locking member locks on the pin. When the
trolley is to be folded, the locking member is operated to be
separated from the pin to allow the trolley to be folded. A fixing
sleeve is securely mounted to the main frame and a movable sleeve
is mounted to the front frame. Two links are connected between two
sides of the movable sleeve and the two side wheel units. A tube is
pivotably connected between the fixing sleeve and the movable
sleeve. A positioning member is connected to the tube and engaged
with the front frame when the trolley is folded or expanded. The
folding device allows the main frame and the front frame to be
folded or expanded conveniently, and the cooperation of the tube
and the positioning member makes the expanded trolley be
stable.
[0008] Preferably, the first connection member has a first toothed
portion and the second connection member has a second toothed
portion which is engaged with the first toothed portion to set the
expanded status.
[0009] The primary object of the present invention is to provide a
golf trolley whose main frame and the front frame are easily folded
or expanded by the folding device. The expanded trolley is stable
by the cooperation of the tube and the positioning member.
[0010] 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
[0011] FIG. 1 is a perspective view to show the expanded status of
the golf trolley of the present invention;
[0012] FIG. 2 is an enlarged perspective view to show the folding
device of the golf trolley of the present invention;
[0013] FIG. 3 is an enlarged perspective view to show that the main
frame and the front frame are pivoted so as to fold the golf
trolley of the present invention;
[0014] FIG. 4 is an enlarged perspective view to show that the main
frame and the front frame are in the folded status of the golf
trolley of the present invention, and
[0015] FIG. 5 is a perspective view to show the folded golf trolley
of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0016] Referring to FIGS. 1 and 2, the golf trolley of the present
invention comprises a main frame 1 having a handle 4 connected
thereto, and a front frame 2 connected with a front wheel 21. Two
side wheel units 3 are connected to two sides of the front frame 2.
A folding device "A" is connected between the main frame 1 and the
front frame 2.
[0017] The folding device "A" has a pivotal unit 5 which comprises
a first connection member 51 on the main frame 1, and a second
connection member 52 on the front frame 2. The first connection
member 51 is pivotably connected to the second connection member
52. The first connection member 51 has a locking member 511 and the
second connection member 52 has a pin 521 which is located
corresponding to the locking member 511.
[0018] A fixing sleeve 6 is securely mounted to the main frame 1
and a movable sleeve 7 is mounted to the front frame 2. Two links
71 are connected between two sides of the movable sleeve 7 and the
two side wheel units 3.
[0019] A tube 8 is pivotably connected between the fixing sleeve 6
and the movable sleeve 7. A positioning member 81 is connected to
the tube 8 and engaged with the front frame 2 whenever the golf
trolley is expanded or folded.
[0020] Further referring to FIGS. 3 to 5, when the golf trolley is
to be folded, the locking member 511 on the first connection member
51 is lifted to be separated from the pin 521. The main frame 1 is
then pivoted toward the front frame 2 by the pivotally connected
first and second connection members 51, 52. During the pivotal
action, the positioning member 81 on the tube 8 is separated from
the front frame 2 so that the main frame 1 is pivotable. Because
the fixing sleeve 6 is securely mounted to the main frame 1, and
the movable sleeve 7 is movable relative to the front frame 2, so
that the tube 8 pushes the movable sleeve 7 to move along the front
frame 2 when the main frame 1 is pivoted. The links 71 are then
pivoted to move the two side wheel units 3 inward as shown in FIG.
3. As shown in FIG. 4, when the main frame 1 is folded to the
folded position, the positioning member 81 on the tube 8 is engaged
with the front frame 2 again to position the main frame 1 and the
front frame 2. The handle 4 is moved to the folded position as
shown in FIG. 5.
[0021] When expanding the golf trolley, the main frame 1 and the
front frame 2 are pivoted in opposite directions by the pivotal
action between the first and second connection members 51, 52. The
positioning member 81 on the tube 8 is disengaged from the front
frame 2, and the tube 8 pulls the movable sleeve 7 to move upward
along the front frame 2. When the main frame 1 and the front frame
2 are pivoted to the expanded positions, the first and second
connection members 51, 52 are positioned head to tail. A first
toothed portion 512 of the first connection member 51 is engaged
with a second toothed portion 522 of the second connection member
52 to more securely set the expanded status of the golf trolley.
The positioning member 81 on the tube 8 is engaged with the front
frame 2 again to position the main frame 1 and the front frame 2.
The final step is to hook the locking member 511 on the first
connection member 51 to the pin 521 on the second connection member
52.
[0022] The golf trolley uses the folding device "A" to fold and
expand the main frame 1 and the front frame 2, and the cooperation
of the tube 8 and the positioning member 81 makes the expanded
trolley be stable.
[0023] 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.
* * * * *