U.S. patent application number 09/842705 was filed with the patent office on 2001-11-22 for synthetic resin bottle with a handle.
This patent application is currently assigned to YOSHINO KOGYOSHO CO., LTD. Invention is credited to Itokawa, Junichi, Nakajima, Kohei.
Application Number | 20010042731 09/842705 |
Document ID | / |
Family ID | 18654230 |
Filed Date | 2001-11-22 |
United States Patent
Application |
20010042731 |
Kind Code |
A1 |
Itokawa, Junichi ; et
al. |
November 22, 2001 |
Synthetic resin bottle with a handle
Abstract
This invention is titled "Synthetic resin bottle with a handle."
The purpose of this invention is to solve the problem of incomplete
fitting engagement between handle and bottle wall. The means to
solve the problem is given by a configuration comprising: A
synthetic resin bottle 1 molded by biaxially oriented blow molding
and having a recession 2 in the rear of the body; A synthetic resin
handle 3 made by injection molding, which is fitted into the
afore-mentioned recessed portion 2 of the bottle 1 as the insert
material and which is provided with an upper fitting arm 6 and a
lower fitting arm 8 extending toward the bottle 1 at respective
ends of a longitudinal thick grip 4; A rectangular stopper 7, which
is disposed at the tip of the upper fitting arm 6 so as to rise
upward from the tip; A reinforcing rib 9,which is disposed under
the lower fitting arm 8 in the direction from arm base to arm tip;
and A stop claw 10 disposed at the tip of the lower fitting arm 8
and extending downward from the tip so that the bottom of the claw
10 is positioned below the underside of the forefront portion of
the reinforcing rib 9. FIG. 2 is designated for the understanding
of this invention.
Inventors: |
Itokawa, Junichi; (Koto-ku,
JP) ; Nakajima, Kohei; (Koto-ku, JP) |
Correspondence
Address: |
OLIFF & BERRIDGE, PLC
277 S. WASHINGTON STREET, SUITE 500
ALEXANDRIA
VA
22314
US
|
Assignee: |
YOSHINO KOGYOSHO CO., LTD
Tokyo
JP
|
Family ID: |
18654230 |
Appl. No.: |
09/842705 |
Filed: |
April 27, 2001 |
Current U.S.
Class: |
215/398 |
Current CPC
Class: |
B65D 23/106
20130101 |
Class at
Publication: |
215/398 |
International
Class: |
B65D 023/10 |
Foreign Application Data
Date |
Code |
Application Number |
May 19, 2000 |
JP |
2000-148154 |
Claims
1. A synthetic resin bottle with a handle, which has a
configuration comprising: A synthetic resin bottle 1 molded by
biaxially oriented blow molding and having a recession 2 in the
rear of the body; A synthetic resin handle 3 made by injection
molding, which is fitted into the afore-mentioned recessed portion
2 of said bottle as the insert material and which is provided with
an upper fitting arm 6 and a lower fitting arm 8 extending toward
said bottle at respective ends of a longitudinal thick grip 4; A
rectangular stopper 7, which is disposed at the tip of said upper
fitting arm 6 so as to rise upward from the tip; A reinforcing rib
9, which is disposed under the front part of said lower fitting arm
8 in the direction from arm base to arm tip; and A stop claw 10
disposed at the tip of said lower fitting arm 8 and extending
downward from the tip so that the bottom of said claw 10 is
positioned below the underside of the forefront portion of said
reinforcing rib 9.
Description
TECHNICAL FIELD
[0001] This invention relates to a large synthetic resin bottle
with a handle, molded by biaxially oriented blow molding, and more
particularly to a synthetic resin bottle with a handle, in which
separately molded handle and bottle have been firmly fitted to each
other.
BACKGROUND OF THE INVENTION
[0002] The so-called insert molding is in wide use as a process for
preparing large synthetic resin bottles with a handle, which are
configured by fitting the handle to the bottle that is separately
molded. In this process, the handle to be fitted is
injection-molded to have arms at the upper and lower ends of the
grip so that each arm is projected forward from the grip. The arms
are provided with a stopper on top of the upper arm tip and under
the lower arm tip. The bottle is blow-molded in biaxial
orientation, and the handle is fitted to the bottle as the insert
material.
[0003] However, a problem has arisen from the prior-art process.
Since the parison used is preheated in this process, the
transmitted heat tends to raise the temperature of the handle and
to deform especially the lower arm, when the arms come in contact
with the wall of the parison and a strong blow pressure is applied
to the lower arm during the biaxially oriented blow molding. As a
result, the fixing engagement between the lower arm and the bottle
has been apt to be incomplete.
SUMMARY OF THE INVENTION
[0004] The object of this invention is to provide a synthetic resin
bottle with a handle, wherein the handle is designed to prevent the
deformation of its lower fitting arm and to give strong and stable
engagement with the bottle when the bottle is prepared in the
biaxially oriented blow molding, with the handle being used as the
insert material.
[0005] This invention is characterized by a configuration
comprising:
[0006] A synthetic resin bottle molded by biaxially oriented blow
molding and having a recession in the rear of the body;
[0007] A synthetic resin handle made by injection molding, which is
fitted into the afore-mentioned recessed portion of the bottle as
the insert material and which is provided with the upper and lower
arms extending toward the bottle at respective ends of a
longitudinal thick grip;
[0008] A rectangular stopper, which is disposed at the tip of the
upper fitting arm so as to rise upward from the tip;
[0009] A reinforcing rib, which is disposed under the lower fitting
arm in the direction from arm base to arm tip; and
[0010] A stop claw disposed at the tip of the lower fitting arm and
extending downward from the tip so that the bottom of the claw is
positioned below the underside of the forefront portion of the
reinforcing rib.
[0011] In the biaxially oriented blow molding of a bottle utilizing
a separately molded handle as the insert material, a reinforcing
rib is provided under the lower fitting arm of the handle, where
temperature rises and a strong blowing pressure is applied. This
rib prevents the lower fitting arm from being deformed during the
blow molding and makes sure that strong fixing engagement is
achieved between the tip of lower arm and the bottle wall.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] FIG. 1 is a side view showing the upper portion of the
bottle in the embodiment of this invention.
[0013] FIG. 2 is a side view of the handle in the embodiment shown
in FIG. 1.
[0014] FIG. 3 is a front view of the handle shown in FIG. 2.
[0015] FIG. 4 is a cross-sectional view taken from line A-A of FIG.
2.
[0016] FIG. 5 is an enlarged side view of an important part of the
handle shown in FIG. 2.
[0017] FIG. 6 is a bottom view of the handle shown in FIG. 2.
DETAILED DESCRIPTION OF THE INVENTION
[0018] This invention is further described by referring now to the
drawings. As shown in FIG. 1, the synthetic resin bottle with a
handle, according to this invention, has a configuration comprising
a bottle 1, which is a product made of polyethylene terephthalate
resin, etc., and blow-molded in biaxial orientation, and a handle
3, which is a product made of polypropylene, polyethylene
terephthalate resin, etc., by injection molding, wherein the handle
3 is used as the insert material and is attached to the recessed
portion 2 in the rear of the body of the bottle 1.
[0019] The handle 3 comprises a grip 4 having two parallel boards
connected with a central rib 5 so that the grip 4 roughly shows a
H-shape (See FIG. 4) in its cross-section, an upper fitting arm 6
extending forward from the upper end of the grip 4, and a lower
fitting arm 8 extending forward from the lower end of the grip 4.
At the tip of the upper fitting arm 6 there is provided a
rectangular stopper 7, which rises upward from the tip.
[0020] The lower fitting arm 8 is curved upward and is formed in
such a way that, as the arm comes close to its forefront, the arm
gradually becomes thinner than at its base. The lower fitting arm 8
is provided with a reinforcing rib 9 under the front, central part
of the lower arm 8 to prevent the arm from being deformed.
[0021] The reinforcing rib 9 is designed to become gradually wider
than at its tip as the rib comes close to the base of the arm. For
an arm 12 mm wide, it is preferred that the rib is 4 mm wide at the
forefront and 6 mm wide at the base. As regards the thickness, if
the lower fitting arm 8 is 2.5 mm thick in the forefront, then it
is preferred that the rib is 1.5 mm thick in the forefront.
[0022] A stop claw 10 is integrally disposed at the tip of the
lower fitting arm 8. This claw exists outstretched laterally from
each side of the lower arm 8. Furthermore, the claw extends
downward from the arm tip so that the bottom of the claw is
positioned below the underside of the forefront portion of the
reinforcing rib 9. The stop claw 10 is rounded at its four corners
in its front view, and it has also the round front surface, as seen
from its side.
[0023] It is preferred that the bottom of the stop claw 10 is 1 mm
below the underside of the forefront portion of the reinforcing rib
9, because blow-molded bottle wall turns around and goes upward
from under the stop claw 10 to a height of 1 mm. Preferably, the
stop claw 10 is outstretched laterally by a length of 1.5 mm from
each side of the lower fitting arm 8.
[0024] In the biaxially oriented blow molding of a bottle utilizing
a separately molded handle as the insert material, a reinforcing
rib is provided under the lower arm of the handle, where
temperature rises and a strong blowing pressure is applied. This
rib makes sure that strong fixing engagement is achieved between
the tip of the lower arm and the bottle wall. Thus, the handle can
be firmly and stably fitted to the bottle.
* * * * *