U.S. patent application number 11/046794 was filed with the patent office on 2006-08-10 for hub for rolled wrap.
Invention is credited to Wei-Hsiu Hua.
Application Number | 20060175460 11/046794 |
Document ID | / |
Family ID | 36778983 |
Filed Date | 2006-08-10 |
United States Patent
Application |
20060175460 |
Kind Code |
A1 |
Hua; Wei-Hsiu |
August 10, 2006 |
Hub for rolled wrap
Abstract
A hub includes a ring-shaped base having a sleeve portion
axially extended from a rear side thereof, and a collar rotatably
mounted on the sleeve portion. An L-shaped curved holding-down
plate is provided at a lower inner side of the base, and slits are
formed at joints of the holding-down plate and the base and the
sleeve portion to provide the holding-down plate with a certain
degree of elasticity. The hub is fitted in an open end of a rolled
wrap with the rotatable collar tightly contacting with a radially
inner side of the rolled wrap. Normally, the rolled wrap can be
freely rotated and outward pulled for packaging an article, and
when the holding-down plate is depressed to push the sleeve portion
against the collar, the rolled wrap is held in place and a user may
tensely stretch the outward pulled wrap to smoothly and firmly wrap
the article.
Inventors: |
Hua; Wei-Hsiu; (Taipei,
TW) |
Correspondence
Address: |
ROSENBERG, KLEIN & LEE
3458 ELLICOTT CENTER DRIVE-SUITE 101
ELLICOTT CITY
MD
21043
US
|
Family ID: |
36778983 |
Appl. No.: |
11/046794 |
Filed: |
February 1, 2005 |
Current U.S.
Class: |
242/579 |
Current CPC
Class: |
B65H 16/06 20130101;
B65H 75/185 20130101; B65H 23/08 20130101 |
Class at
Publication: |
242/579 |
International
Class: |
B65H 75/28 20060101
B65H075/28 |
Claims
1. A hub for rolled wrap, comprising: a generally ring-shaped base
having a sleeve portion axially extended from a rear side of said
base, said sleeve portion being formed at two diametrically
opposite sides near a rear end thereof with two hooks; and said
base being provided at a lower inner side with a generally L-shaped
and curved holding-down plate, a lower slit being provided at a
joint of said holding-down plate and said base, and two lateral
slits being provided at joints of said holding-down plate and said
sleeve portion to provide said holding-down plate with a certain
degree of elasticity; and a collar having an inner diameter
slightly larger than an outer diameter of said sleeve portion of
said base for rotatably mounting around said sleeve portion; said
collar being provided at a front end with a radially extended
flange portion, and on a circumferential surface with a plurality
of axially spaced ribs; said hub being adapted to fit in an open
end of a rolled wrap with said collar rotatably mounted on said
sleeve portion in tight contact with a radially inner side of said
rolled wrap; whereby when said holding-down plate is in a normal
position without being subjected to any downward pressure, said
rolled wrap is allowed to freely rotate relative to said sleeve
portion of said hub and be pulled outward for packaging an article,
and when said holding-down plate is depressed to tightly push said
sleeve portion against said collar, said rolled wrap is held in
place for a user to tensely stretch the outward pulled wrap to
smoothly and firmly package said article.
2. The hub for rolled wrap as claimed in claim 1, wherein said
sleeve portion of said base is provided at two diametrically
opposite sides near a rear end thereof with two axially extended
U-shaped grooves to form two elastic tabs, and wherein said hooks
provided on said sleeve portion are triangular ribs formed at free
ends of said two elastic tabs.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to a hub for rolled wrap, and
more particularly to a hub fitted in an open end of a rolled wrap
to allow a user to more conveniently and quickly pull out and
tensely stretch the rolled wrap for firmly wrapping an article.
BACKGROUND OF THE INVENTION
[0002] When a rolled wrap is used to packaging an article,
particularly a large-size article, a user usually has to pull out a
length of the rolled wrap to wrap the article and then cut the
wrap. To facilitate easy pull of the rolled wrap, the rolled wrap
is usually mounted on a tubular member to rotate freely and be
pulled outward. However, the outward pulled wrap must be tensely
stretched to smoothly and firmly package the article. Since the
conventional tubular member for rotatably holding the rolled wrap
thereon does not include any means for holding the rolled wrap in
place, it is uneasy for a user to tensely stretch the outward
pulled portion of the rolled wrap to tightly wrap the article. The
outward pulled wrap tends to become loose, wrinkled, and biased,
and fails to give the packaged article a nice appearance.
SUMMARY OF THE INVENTION
[0003] A primary object of the present invention is to provide a
hub for rolled wrap, so that the rolled wrap may be more
conveniently operated to perfectly package an article.
[0004] To achieve the above and other objects, the hub for rolled
wrap according to the present invention includes a ring-shaped base
having a sleeve portion axially extended from a rear end thereof,
and a collar rotatably mounted on the sleeve portion of the base.
An L-shaped curved holding-down plate is provided at a lower inner
side of the base, and slits are formed at joints of the
holding-down plate and the base and the sleeve portion to provide
the holding-down plate with a certain degree of elasticity.
[0005] The hub is fitted in an open end of a rolled wrap with the
collar rotatably mounted on the sleeve portion tightly contacting
with a radially inner side of the rolled wrap. When the
holding-down plate is not depressed, the rolled wrap can be freely
rotated about the sleeve portion and outward pulled for wrapping an
article, and when the holding-down plate is depressed to tightly
press the sleeve portion against the collar, the rolled wrap is
also held in place and a user may tensely stretch the outward
pulled wrap to smoothly and firmly wrap the article.
[0006] The sleeve portion of the base is provided at two opposite
sides near a rear end thereof with two axially extended U-shaped
grooves, so as to form two elastic tabs. Free ends of the elastic
tabs are formed into two triangular hooks that prevent the collar
from sliding out of the sleeve portion.
BRIEF DESCRIPTION OF THE DRAWINGS
[0007] The structure and the technical means adopted by the present
invention to achieve the above and other objects can be best
understood by referring to the following detailed description of
the preferred embodiments and the accompanying drawings,
wherein
[0008] FIG. 1 is an assembled perspective view of a hub for rolled
wrap according to an embodiment of the present invention;
[0009] FIG. 2 is an exploded perspective view of the hub for rolled
wrap shown in FIG. 1;
[0010] FIG. 3 is a sectioned side view of the hub for rolled wrap
shown in FIG. 1;
[0011] FIG. 4 is a sectioned side view showing the use of the
present invention to hold a rolled wrap in place; and
[0012] FIG. 5 is a perspective view showing the use of the present
invention to hold a rolled wrap in place.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0013] Please refer to FIGS. 1 and 2 that are assembled and
exploded perspective views, respectively, of a hub for rolled wrap
100 according to an embodiment of the present invention, and to
FIG. 3 that is a sectioned side view of the present invention. For
the purpose of concision, the hub for rolled wrap 100 shall also be
briefly referred to as the hub 100 throughout the specification. As
shown, the hub 100 mainly includes a generally ring-shaped base 1
having a sleeve portion 11 axially extended from a rear side of the
base 1 by a predetermined length, and a collar 2 having an inner
diameter slightly larger than an outer diameter of the sleeve
portion 11 of the base 1 for rotatably mounting around the sleeve
portion 11.
[0014] The sleeve portion 11 of the base 1 is provided at two
diametrically opposite sides near a rear end thereof with two
axially extended U-shaped grooves 12 to form two elastic tabs 13.
Free ends of the elastic tabs 13 are formed into two triangular
ribs to function like hooks 14.
[0015] A generally L-shaped and curved holding-down plate 15 is
provided at a lower inner side of the base 1. A lower slit 16 is
provided at a joint of the holding-down plate 15 and the base 1,
and two lateral slits 17 are provided at joints of the holding-down
plate 15 and the sleeve portion 11 to provide the L-shaped
holding-down plate 15 with a certain degree of elasticity.
[0016] The collar 2 is provided at a front end with a radially
extended flange portion 21, and on a circumferential surface with a
plurality of axially spaced ribs 22.
[0017] To assemble the hub 100, simply put the collar 2 around the
sleeve portion 11 of the base 1. The triangular hooks 14 at free
ends of the elastic tabs 13 near the rear end of the sleeve portion
11 prevent the collar 2 from sliding out of the sleeve portion 11.
Since the collar 2 has an inner diameter slightly larger than the
outer diameter of the sleeve portion 11, the collar 2 is normally
rotatable on the sleeve portion 11. The assembled hub 100 may be
then fitted in an open end of a rolled wrap with the collar 2 in
tight contact with a radially inner side of the rolled wrap.
[0018] Please refer to FIGS. 4 and 5. To operate a rolled wrap 3
with the help of the present invention, a user first fits two hubs
100 in two open ends of the rolled wrap 3 with the collars 2 in
tight contact with the radially inner side of the rolled wrap 3,
and then holds the bases 1 of the two hubs 100. Since the collars 2
are rotatably mounted on the sleeve portions 11 of the bases 1, the
rolled wrap 3 tightly contacting with the collars 2 may be freely
rotated and outward pulled to package an article. When the
packaging is completed or temporarily stopped, the user may depress
the holding-down plates 15 to tightly push the sleeve portions 11
of the bases 1 against the collars 2 and thereby stops the collars
2 and accordingly, the rolled wrap 3 firmly fitted thereon from
rotating. With the rolled wrap 3 in an immovable state, the outward
pulled wrap can be tensely stretched to smoothly and firmly wrap up
the article.
[0019] With the above arrangements, the hub for rolled wrap
according to the present invention enables a user to tensely
stretch the outward pulled wrap to smoothly and firmly package an
article with the rolled wrap, making the rolled wrap more
conveniently for use.
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