U.S. patent application number 13/545670 was filed with the patent office on 2014-01-16 for slowing device for slowing scrolling speed of belt of barrier pole.
The applicant listed for this patent is ROBERT TSAI. Invention is credited to ROBERT TSAI.
Application Number | 20140014760 13/545670 |
Document ID | / |
Family ID | 49913123 |
Filed Date | 2014-01-16 |
United States Patent
Application |
20140014760 |
Kind Code |
A1 |
TSAI; ROBERT |
January 16, 2014 |
SLOWING DEVICE FOR SLOWING SCROLLING SPEED OF BELT OF BARRIER
POLE
Abstract
A slowing device for slowing scrolling speed of belt of barrier
poles includes a storage unit having a rotor to which the belt is
wrapped. The rotor has an axle extending therefrom and located in
the room of the storage unit. The rotor scrolls the belt backward
when the belt is released. The slowing device is located in the
storage unit and has two braking pieces which contact the inner
wall of the room due to centrifugal force so that the belt does not
move at high speed and does not injure people when being pulled or
retracted.
Inventors: |
TSAI; ROBERT; (TAICHUNG
CITY, TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
TSAI; ROBERT |
TAICHUNG CITY |
|
TW |
|
|
Family ID: |
49913123 |
Appl. No.: |
13/545670 |
Filed: |
July 10, 2012 |
Current U.S.
Class: |
242/396 |
Current CPC
Class: |
B65H 2701/374 20130101;
B65H 75/4447 20130101; E01F 13/028 20130101 |
Class at
Publication: |
242/396 |
International
Class: |
B65H 75/30 20060101
B65H075/30; B65H 75/48 20060101 B65H075/48 |
Claims
1. A slowing device for slowing scrolling speed of belt of barrier
poles, comprising: a storage unit having a rotor located therein,
the rotor having an axle which extends into a room in the storage
unit; a belt scrolled to the rotor and the rotor scrolling the belt
backward when the belt is released; a slowing device located in the
room and having at least two braking pieces and a guide member, the
at least two braking pieces connected to two wing rods of the guide
member, the guide member being secured at a center of the room, and
the rotor being rotated to rotate the slowing device, the at least
two braking pieces moving away from the guide member by centrifugal
force and contacting an inner wall of the room to slow the
belt.
2. The device as claimed in claim 1, wherein the at least two
braking pieces each are a crescent piece, the guide member is a
circular cylindrical rod and the two wing rods extend horizontally
from the circular cylindrical rod of the guide member in opposite
directions, each of the at least two braking pieces has a
connection hole which is located corresponding to the wing rod
corresponding thereto, the wing rods are connected to the
connection holes of the at least two braking pieces.
3. The device as claimed in claim 1, wherein the room is defined by
a top cap and a mediate part, the top cap has a disk and a flange
extends from an underside of the disk, the flange is inserted into
the recessed area of the mediate part to form the room, the at
least two braking pieces contact the inner wall of the flange of
the room when the rotor rotates.
4. The device as claimed in claim 3, wherein the top cap and the
mediate part are fixed to a top of the storage unit by multiple
bolts.
5. The device as claimed in claim 3, wherein a top of the guide
member is pivotably connected to a first central hole of the top
cap, the guide has a hexagonal rod extending from an underside
thereof, the hexagonal rod extends through the second central hole
of the mediate part, the rotor has a hexagonal hole defined in the
axle and the hexagonal rod is connected to the hexagonal hole of
the axle.
6. The device as claimed in claim 3, wherein a maximum diameter of
the slowing device is 45 mm, a maximum inner diameter of the flange
is 47 mm, a gap between the slowing device and the flange is 1.5
mm.
7. The device as claimed in claim 3, wherein a maximum depth of the
recessed area of the mediate cap is 10 mm, a thickness of each of
the at least two braking pieces is 7 mm, a weight of each of the at
least two braking pieces is 40 grams.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to a slowing device, and more
particularly, to a slowing device for slowing scrolling speed of
the belt of barrier poles.
BACKGROUND OF THE INVENTION
[0002] The conventional belt-type barrier 9 is disclosed in FIG. 8
and comprises a pole 91 and a scrolling portion 911 is located on
the top of the pole 91 so as to operate the belt 92. The scrolling
portion 911 has a torsion spring (not shown) to scroll the belt 92.
The belt 92 has a hook 921 so as to be hooked to the scrolling
portion 911 of another pole 91. By cooperation of multiple poles 91
and the belts 92 hooked to other scrolling portions 911 of the
poles 91, a barrier is formed. The poles 91 are easily carried and
transported, and the belts 92 are easily set and operated so that
the belt-type barrier 9 is used widely for setting movement lines
in larger sites such as performing halls, dancing balls or the
like.
[0003] The present invention intends to provide a slowing device
for slowing the scrolling speed of the belt of the belt-type
barrier poles and which is easily operated and manufactured.
SUMMARY OF THE INVENTION
[0004] The present invention relates to a slowing device for
slowing scrolling speed of the belt of barrier poles and comprises
a storage unit having a rotor located therein and the rotor has an
axle which extends into a room in the storage unit. A belt is
scrolled to the rotor and the rotor scrolls the belt backward when
the belt is released. The slowing device is located in the room and
has at least two braking pieces and a guide member. The at least
two braking pieces are connected to two wing rods of the guide
member which is secured at the center of the room.
[0005] Preferably, the braking pieces each are a crescent piece,
the guide member 31 is a circular cylindrical rod and the two wing
rods extend horizontally from the circular cylindrical rod. Each of
the at least two braking pieces has a connection hole and the wing
rods are connected to the connection holes of the at least two
braking pieces.
[0006] The rotor is rotated to rotate the slowing device and the at
least two braking pieces move away from the guide member by
centrifugal force and contact the inner wall of the room to slow
the belt.
[0007] Preferably, the room is defined by a top cap and a mediate
part, wherein the top cap has a disk and a flange extends from the
underside of the disk. The flange is inserted into the recessed
area of the mediate part to form the room. The at least two braking
pieces contact the inner wall of the flange of the room when the
rotor rotates. The guide has a hexagonal rod extending from the
underside thereof. The hexagonal rod extends through the central
hole of the mediate part. The rotor has a hexagonal hole defined in
the axle and the hexagonal rod is connected to the hexagonal hole
of the axle so that the rotor can drive the slowing device. The top
cap and the mediate part are fixed to the top of the storage unit
by multiple bolts.
[0008] 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
[0009] FIG. 1 is a perspective view to show the barrier pole of the
present invention;
[0010] FIG. 2 is an enlarged view to show the top portion of the
barrier pole of the present invention;
[0011] FIG. 3 is an exploded view to show the barrier pole of the
present invention;
[0012] FIG. 4 is another exploded view to show the barrier pole of
the present invention;
[0013] FIG. 5 is a cross sectional view of the barrier pole of the
present invention;
[0014] FIG. 6 is a top view to show the rotor in the storage unit
of the barrier pole of the present invention;
[0015] FIG. 7 shows that the braking pieces move outward when the
rotor rotates, and
[0016] FIG. 8 shows the conventional barrier pole.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0017] Referring to FIGS. 1 to 4, the slowing device for slowing
scrolling speed of the belt of barrier poles of the present
invention comprises a storage unit 10, a belt 2 and a slowing
device 3.
[0018] The storage unit 10 is located in a case 1 on the top of the
pole 4 and has a rotor 11 located therein. The rotor 11 is
cooperated with a torsion spring 16 as shown in FIG. 5 so t hat the
rotor 11 can be rotated backward. The rotor 11 has an axle 111
which extends into a room 12 in the storage unit 10. The room 12 is
defined by a top cap 13 and a mediate part 14, wherein the top cap
13 has a disk 131 and a flange 132 extends from the underside of
the disk 131. The flange 132 is inserted into the recessed area 141
of the mediate part 14 to form the room 12. The inner wall of the
flange 132 of the room 12 is provided to be in contact with two
braking pieces 32 of the slowing device 3 to slow the belt 2. The
top cap 13 and the mediate part 14 are fixed to the top of the
storage unit 10 by multiple bolts 15. The axle 111 of the rotor 11
is inserted into the central hole 142 of the mediate part 14 so as
to drive the slowing device 3 in the room 12.
[0019] The belt 2 is scrolled to the rotor 11 in the storage unit
10. The hook 20 of the belt 2 is located outside of the case 1 so
that the users can easily pull the belt 2 and hook the belt 2 to
another storage unit 10. The rotor 11 scrolls the belt 2 backward
by the torsion spring 16 when the belt 2 is released.
[0020] The slowing device 3 and the axle 111 of the rotor 11 are
both located in the room 12 and the slowing device 3 has at least
two braking pieces 32 and a guide member 31. The at least two
braking pieces 32 are connected to two wing rods 311 of the guide
member 31. The at least two braking pieces 32 each are a crescent
piece. The top of the guide member 31 is pivotably connected to a
first central hole 133 of the top cap 13. The guide member 31 is a
circular cylindrical rod and the two wing rods 311 extend
horizontally from the circular cylindrical rod of the guide member
31 in opposite directions. Each of the at least two braking pieces
32 has a connection hole 321 which is located corresponding to the
wing rod 311 corresponding thereto. The wing rods 311 are connected
to the connection holes 321 of the at least two braking pieces 32.
Because the hexagonal rod 312 extends through the second central
hole 142 of the mediate part 14, the rotor 11 has a hexagonal hole
112 defined in the axle 111, and the hexagonal rod 312 is connected
to the hexagonal hole 112 of the axle 111. The axle 111 can drive
the slowing device 3.
[0021] As shown in FIGS. 4 and 5, the at least two braking pieces
32 and the guide member 31 are installed in the storage unit 10 and
the at least two braking pieces 32 are slidably connected to the
two wing rods 311. In the preferable embodiment, the maximum
diameter "d" of the slowing device 3 is 45 mm and the maximum inner
diameter "D" of the flange 132 is 47 mm. A gap "a" between the
slowing device 3 and the flange 132 is 1.5 mm. The maximum depth
"H" of the recessed area 141 of the mediate cap 14 is 10 mm. The
thickness "h" of each of the at least two braking pieces 32 is 7
mm. The weight of each of the at least two braking pieces 32 is 40
grams.
[0022] As shown in FIG. 6, the rotor 11 and the belt 2 are in
normal status, the at least two braking pieces 32 are not in
contact with the flange 132. Alternatively, the at least two
braking pieces 32 are in contact with the flange 132 by do not
apply normal force to the flange 132.
[0023] As shown in FIG. 7, when the users pull the belt 2, the
rotor 11 and the slowing device 3 are rotated, the at least two
braking pieces 32 move away from the guide member 31 by centrifugal
force and contact the inner wall of the flange 132. Friction is
generated between the flange 132 and the at least two braking
pieces 32, so that the movement of the belt 3 is slowed. Similarly,
when the belt 2 is released, the belt 2 is scrolled to the rotor
11, the at least two braking pieces 32 move away from the guide
member 31 by centrifugal force and contact the inner wall of the
flange 132. Friction is generated between the flange 132 and the at
least two braking pieces 32, so that the movement of the belt 3 is
also slowed. The speed that the belt 3 is operated is slowed so
that the belt 3 does not injure people.
[0024] The flange 132 of the top cap 13 is inserted to the recessed
area 141 of the mediate part 14, and the hexagonal rod 312 of the
guide member 31 extends through the second central hole 142 of the
mediate part 14 and is connected to the hexagonal hole 112 of the
axle 111, so that axle 111 of the rotor 11 can rotate the slowing
device 3. The top cap 13 and the mediate part 14 are connected to
the top of the storage unit 10 so that the assembly is easy.
[0025] 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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