Information
-
Patent Grant
-
6412730
-
Patent Number
6,412,730
-
Date Filed
Thursday, June 8, 200025 years ago
-
Date Issued
Tuesday, July 2, 200223 years ago
-
Inventors
-
Original Assignees
-
Examiners
Agents
-
CPC
-
US Classifications
Field of Search
US
- 242 602
- 242 528
- 242 393
- 242 540
- 242 5951
- 242 5333
- 242 5594
- 156 4051
- 156 4064
-
International Classifications
-
Abstract
A device and a method for storing an elongated plastically deformable member are provided in which, even if an elongated plastically deformable member and a liner are stored in a state of being superposed together and wound on a take-up reel, deformation of portions of the elongated plastically deformable member and non-uniformity of deformation of the elongated plastically deformable member can be suppressed. When a liner and an unvulcanized tread member are taken-up on and stored on a reel, the reel is supported by a driven roller and a drive roller, and the reel is stored in a state of being rotated constantly. As a result, during storage, a load caused by the wound tread member itself is applied uniformly to an entire wound circumference. Therefore, collapsing deformation caused thereby is made uniform along a longitudinal direction, and differences in a configuration of the tread member at respective wound layers do not arise.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a device and a method for storing an elongated plastically deformable member which use a take-up reel on which an elongated plastically deformable member is taken-up in a state of being superposed together with a liner.
2. Description of the Related Art
Conventionally, in order to store unvulcanized, green rubber used for the tread or the sidewalls or the like of a tire, there are methods in which an elongated green rubber member, which is extruded from an extruder and has a constant cross-sectional configuration, is stored in a state of being taken-up (wound) on a reel.
At this time, because the green rubber is tacky, if it is taken-up as is, the outer side of one layer of the wound green rubber sticks to the inner side of another layer of the wound green rubber.
As a result, generally, the green rubber member extruded from the extruder is taken-up in layers via a liner. That is, the liner is disposed between the respective wound layers of the green rubber, which prevents the layers from sticking to one another.
Generally, because an unvulcanized, green rubber is plastic, it tends to deform when mechanical stress is applied thereto. When the green rubber is taken-up together with the liner, the configuration of the green rubber deforms due to the tension of the liner and the weight of the green rubber itself.
In particular, the deformation caused by the weight of the green rubber itself which is rolled in layers is great. Such deformation in the green rubber causes troubles in molding in a later process, and the uniformity of obtained products is markedly poor.
Thus, as illustrated in
FIG. 15
, an elongated member storing device has been proposed in which a spacer
102
is mounted to and integral with either end of a liner
103
. A space d is formed between the outer side portion of a green rubber member
101
, which is taken-up onto the reel via the liner
103
, and the inner side portion of the liner
103
, so as to prevent deformation of the green rubber member
101
.
Further as illustrated in
FIG. 16
, an elongated member storing device has been proposed in which receiving members
204
,
205
are provided, along a swirled line having a standard interval k around a center axis C of the reel, at opposing sides of a pair of opposing rotating members
202
,
203
. Due to the receiving members
204
,
205
, an elongated member
201
is wound via a liner
206
, and a space d is formed between the outer side portion of the wound elongated member
201
and the inner side portion of the liner
206
. In this way, plastic deformation of the green rubber product can be prevented.
In the device in which the spacers
102
are made integral at the both ends of the liner
103
(see
FIG. 15
) and the device provided with the pair of receiving members
204
,
205
disposed along a swirled line having standard intervals between respective wound layers (see FIG.
16
), plastic deformation of the green rubber product is prevented due to the space d being formed between the outer side portion of the wound elongated product and the inner side portion of the liner.
There are green rubber products of various different thicknesses, and thus, in the above-described storing devices illustrated in
FIGS. 15 and 16
, the spiral interval d is determined on the basis of the thickest green rubber product.
As a result, when a thinner green rubber member is wound, the interval d is large and the wound length of the green rubber member is short, and thus, the winding efficiency is poor.
In order to overcome this problem, a plurality of types of liners
103
whose spacers
102
have different thicknesses may be readied, or a plurality of types of devices having different spiral intervals d may be readied. However, this results in drawbacks such as increased costs and poor efficiency of use.
SUMMARY OF THE INVENTION
In view of the aforementioned, an object of the present invention is to provide a device and a method for storing an elongated plastically deformable member in which, even if an elongated plastically deformable member such as green rubber or the like is stored in a state of being wound in superposed layers, deformation of portions of the elongated plastically deformable member and non-uniform deformation of the elongated plastically deformable member can be suppressed.
In order to achieve the above object, a first aspect of the present invention is a device for use in storing an elongated plastically deformable member wound on a take-up reel with a thin-plate-shaped liner superposed with the elongated plastically deformable member, the take-up reel having an axis which is substantially horizontal, the device comprising a rotating means adapted to rotate the take-up reel at least one of constantly and intermittently.
Further, a method of the present invention for storing an elongated plastically deformable member wound on a take-up reel together with a thin-plate-shaped liner superposed with the elongated plastically deformable member, the take-up reel having an axis which is substantially horizontal, comprises the step of rotating the take-up reel at least one of constantly and intermittently.
In this first aspect of the present invention, when a take-up reel, on whose outer peripheral surface are wound a superposed thin-plate-shaped liner and an elongated plastically deformable member, is set in a state in which the axis of the take-up reel is substantially horizontal with respect to a setting surface, the take-up reel is rotated at least one of constantly or intermittently by the rotating means.
Because the take-up reel is rotated constantly or intermittently, during storing, the load of the wound elongated plastically deformable member itself is applied uniformly to the entire wound circumference and does not concentrate at particular portions, even after time passes. Therefore, collapsing deformation caused thereby is made uniform along the longitudinal direction, and differences in a configuration of the elongated plastically deformable member between the respective wound layers do not arise.
Here, “always rotated” or “constantly rotated” means “continuously rotated”, but may include stopping for an instant such as when reversing rotation (a period of time in which configurational differences which adversely affect the uniformity of the product are not caused between the respective wound layers of the elongated plastically deformable member; this time varies in accordance with the wound amount, the flexibility, and the like of the elongated plastically deformable member).
In a second aspect of the present invention, in the device for use in storing an elongated plastically deformable member according to the first aspect, the rotating means rotates the take-up reel over a given angle in a first direction of rotation, and thereafter, the rotating mechanism rotates the take-up reel in another direction, and alternately repeats rotating in said first direction and said another direction of rotation.
Further, a method of the present invention for storing an elongated plastically deformable member wound on a take-up reel together with a thin-plate-shaped liner superposed with the elongated plastically deformable member, the take-up reel having an axis which is substantially horizontal, comprises the step of rotating the take-up reel at least one of constantly and intermittently.
The member which is being taken-up and stored with the liner is an elongated plastically deformable member such as a green rubber product. An unvulcanized green rubber is plastic, and is easily deformed when mechanical stress is applied thereto. Therefore, if, during storage, the take-up reel is continuously rotated in the same direction as the direction in which the green rubber product is wound, the winding of the wound green rubber product will tighten. If the take-up reel is continuously rotated in the direction opposite the direction in which the green rubber product is wound, the winding of the wound green rubber product will loosen.
In accordance with the present aspect, after the take-up reel is rotated over a given angle, the direction of rotation is changed, and this rotation and changing of the direction of rotation are repeated. Therefore, tightening of the winding or loosening of the winding of the elongated plastically deformable member taken-up on the take-up reel can be prevented.
Here, it is preferable that the given angle is 180° or an integer multiple of 180°.
In a third aspect of the present invention, in the device for storing an elongated plastically deformable member, the rotating means has pair of rollers which abut the take-up reel.
In the present aspect, the take-up reel is disposed on the pair of rollers, and by rotating the rollers, the take-up reel is rotated.
In a fourth aspect, one roller of the pair of rollers is a drive roller connected to a rotating driving means, and the other roller is a driven roller.
In accordance with the present aspect, the drive roller is rotated by the rotating driving means, and the take-up reel is thereby rotated. Due to the rotation of the take-up reel, the driven roller abutting the reel rotates.
In a fifth aspect of the present invention, the driven roller is connected to a moving means, and when the driven roller is moved from a first position to a second position, the take-up reel is raised up off of the setting surface by the driven roller and the drive roller.
In accordance with the present aspect, the driven roller is provided so as to be able to be moved by the moving means. When the driven roller is positioned at the first position, the take-up reel is disposed on the setting surface. As a result, the take-up reel can be loaded in and removed from the device for storing an elongated plastically deformable member by being rolled on the setting surface. At the next stage, when the take-up reel is disposed between the driven roller and the drive roller, the driven roller is moved from the first position to the second position and the take-up reel is raised up off of the setting surface by the driven roller and the drive roller. As a result, the take-up reel is supported and rotated by the driven roller and the drive roller.
In a sixth aspect of the present invention, the driven roller is removably provided.
In accordance with the present aspect, if the driven roller gets in the way when the take-up reel is attached or removed, the driven roller is removed, so that the work of attaching or removing the take-up reel is facilitated.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
is a side view of a device for storing an elongated plastically deformable member relating to a first embodiment of the present invention.
FIG. 2
is a plan view of the device for storing an elongated plastically deformable member relating to the first embodiment of the present invention.
FIG. 3
is a front view of the device for storing an elongated plastically deformable member relating to the first embodiment of the present invention.
FIG. 4
is a schematic structural view of a tread member take-up device.
FIG. 5A
is a side view of a device for storing an elongated plastically deformable member relating to a second embodiment of the present invention.
FIG. 5B
is a side view of a vicinity of a driven roller relating to the second embodiment of the present invention.
FIG. 6
is a front view of the device for storing an elongated plastically deformable member relating to the second embodiment of the present invention.
FIG. 7
is a side view of a device for storing an elongated plastically deformable member relating to a third embodiment of the present invention.
FIG. 8
is a front view of the device for storing an elongated plastically deformable member relating to the third embodiment of the present invention.
FIG. 9
is a side view of a device for storing an elongated plastically deformable member relating to a fourth embodiment of the present invention.
FIG. 10
is a front view of the device for storing an elongated plastically deformable member relating to the fourth embodiment of the present invention.
FIG. 11
is a side view of a device for storing an elongated plastically deformable member relating to a fifth embodiment of the present invention.
FIG. 12
is a plan view of the device for storing an elongated plastically deformable member relating to the fifth embodiment of the present invention.
FIG. 13
is a side view of a device for storing an elongated plastically deformable member relating to a sixth embodiment of the present invention.
FIG. 14
is a plan view of the device for storing an elongated plastically deformable member relating to the sixth embodiment of the present invention.
FIG. 15
is a schematic structural view of an elongated member storing device relating to a conventional example.
FIG. 16
is a schematic structural view of an elongated member storing device relating to another conventional example.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
First Embodiment
A first embodiment of the present invention will be described hereinafter with reference to the drawings.
FIG. 4
is a schematic illustration of, as an example, a tread member take-up device
60
for taking-up an unvulcanized tread member used in manufacturing a tire.
The tread member take-up device
60
includes a conveying belt
64
for conveying an unvulcanized tread member
62
which has been extruded from an extruder (not shown), conveying rollers
66
around which the conveying belt
64
is trained, a roller
70
for supplying a liner
68
which is formed from synthetic resin or the like, and a rotating shaft
74
which supports a reel
72
for taking-up the tread member
62
via the liner
68
.
As illustrated in
FIG. 3
, the reel
72
has a flange
78
at either end of a drum
76
which takes-up the tread member
62
.
The tread member
62
, which is extruded out from the extruder, is conveyed by the conveying belt
64
, and is taken-up by the reel
72
.
At this time, the liner
68
which is wound around the roller
70
is also taken-up by the reel
72
. Thus, the tread member
62
is taken-up in a state of being adhered to the liner
68
due to the tackiness of the tread member
62
. As a result, respective layers of the wound tread member
62
do not stick to one another.
As illustrated in
FIG. 3
, usually, the cross-sectional configuration of the tread member
62
is a so-called contour configuration in which a recess is formed in the central portion and both sides thereof project. When the tread member
62
is taken-up and stored, collapsing of this counter configuration must be suppressed.
Next, a storing device
10
for storing the reel
72
on which the tread member
62
is wound will be described.
As shown in
FIGS. 1 through 3
, the storing device
10
includes a frame
14
on a setting surface
12
.
A plurality of shaft supporting portions
16
are mounted to the arrow R direction side of the frame
14
along the directions of arrows F and B. Shafts
18
are supported so as to be freely rotatable by the shaft supporting portions
16
. The shafts
18
are connected to one another by couplings
20
.
A pulley
22
is mounted to the shaft
18
at the arrow F direction side.
A motor
24
is attached to the frame
14
, and a pulley
26
is attached to the shaft of the motor
24
.
A belt
28
is trained around the pulley
22
and the pulley
26
. Due to the driving of a motor
24
, the shafts
18
rotate.
Drive rollers
30
are attached to the shafts
18
.
A moving roller device
32
is provided at the arrow L direction side of each drive roller
30
.
The moving roller device
32
includes a pair of shaft supporting portions
34
at the arrow L direction side of the frame
14
. Substantially L-shaped links
36
are rotatably supported at these shaft supporting portions
34
.
The arrow L direction side end of one link
36
is connected to the arrow L direction side end of another link
36
by a shaft
38
. A driven roller
40
is supported at the shaft
38
so as to be freely rotatable.
A flange
42
is attached to each end portion of the driven roller
40
. The flanges
42
are disposed at the outer sides of the flanges
78
of the reel
72
, and function to restrict axial direction movement of the reel
72
.
An air cylinder
44
is provided at the arrow R direction side of the shaft supporting portion
34
.
A cylinder main body
46
of the air cylinder
44
is supported so as to be freely swingable at a shaft supporting portion
48
provided at the frame
14
.
The arrow R direction side end of the link
36
is connected to a piston rod
50
of the air cylinder
44
via a pin
52
.
When the piston rods
50
of the air cylinders
44
are extended, the links
36
rotate counterclockwise, and the driven rollers
40
enter into concave portions
54
provided at the setting surface
12
, as illustrated by the two-dot chain line in FIG.
1
. (This is the first state of the present invention.)
Further, when the piston rods
50
of the air cylinders
44
are pulled in, as illustrated by the solid lines in
FIG. 1
, the links
36
rotate clockwise, and the driven rollers
40
are positioned a predetermined dimension above the setting surface
12
. (This is the second state of the present invention.)
Here, when the reel
72
is placed on the drive roller
30
and the driven roller
40
in a state in which the driven roller
40
is positioned a predetermined dimension above the setting surface
12
, the bottom end of the reel
72
is positioned above the setting surface
12
such that the reel
72
is supported by the drive roller
30
and the driven roller
40
.
In the state in which the driven roller
40
has entered into the concave portion
54
, the bottom end of the reel
72
abuts the setting surface
12
, and the reel
72
can be rolled on the setting surface
12
.
Next, operation of the storing device
10
of the present first embodiment will be described.
First, the tread member
62
formed by being extrusion molded from the extruder (not shown) is conveyed by the conveying belt
64
and, together with the liner
68
, is taken-up onto the reel
72
.
When the winding of a predetermined length of the tread member
62
has been completed, the reel
72
is removed from the rotating shaft
74
, and is taken to the storing device
10
by being rolled on the setting surface
12
or the like.
In the storing device
10
, first, as shown by the two-dot chain line in
FIG. 1
, the driven roller
40
is set in a state of being entered into the concave portion
54
(the first state of the present invention), and the reel
72
is rolled from the arrow L direction side toward the arrow R direction side in
FIG. 1
so as to abut the drive roller
30
.
Next, the piston rods
50
of the air cylinders
44
are retracted so that the links
36
are rotated in the clockwise direction. In this way, the driven roller
40
rises (the second state of the present invention), and the reel
72
is raised up so as to be separated from the setting surface
12
and so as to be supported by the drive roller
30
and the driven roller
40
.
Thereafter, the motor
24
is rotated, and the reel
72
is rotated at slow speed, for example, 180° clockwise (in the direction of arrow CW). After being rotated 180° clockwise, the direction of rotation is changed and the reel
72
is rotated 180° counterclockwise. After the reel
72
is rotated 180° counterclockwise, the direction of rotation is again changed, and the same opposite operations are repeated until the tread member
62
is to be used.
While the tread member
62
is being stored, the load caused by the wound tread member
62
itself is applied uniformly along the entire wound circumference in accordance with the rotation of the reel
72
. Thus, collapsing deformation of the tread member
62
caused by the load of the wound tread member
62
itself is made uniform along the entire longitudinal direction, such that no difference in configuration arises between the respective wound layers.
Accordingly, because the gauge within one tread which is molded as a tire is uniform along the longitudinal direction, there are no effects on uniformity.
Further, the take-up reel
72
is not rotated continuously in one direction. After the reel
72
is rotated 180°, the direction of rotation is changed. By repeating these operations, tightening up of the winding or loosening of the winding of the reel member
62
can be prevented.
By making the rotational speed slow, the setting and removal of the take-up reel
72
can be carried out safely even if the rotation of the driving rollers
30
is not stopped.
Further, the reel
72
does not have to be rotated constantly, and forward rotation and reverse rotation may be repeated intermittently.
An amount of rotation of the take-up reel
72
which is sufficient for making the deformation of the protruding portions of the tread member
62
, caused by the pressing of the weight of the tread member
62
itself, uniform throughout the respective wound layers is an integer multiple of 180°. Accordingly, after the reel
72
is rotated 360° (one rotation) for example, the rotational direction may be changed, and these operations may be repeated.
Here, a more preferable condition for operating the storing device
10
is that, each time the take-up reel is rotated 180° at a slow rotational speed, the rotational direction is changed. Here, “slow rotational speed” means a speed which is less than or equal to one-half of a rotation per minute.
Using a tire for a regular passenger vehicle as an example, the range of thicknesses of the thickest portions of treads of various sizes is usually 8 to 15 mm. In conventional methods, the winding interval is set to 15 mm or more in order to obtain a gap d between the liner and the tread. However, by using the present method, winding is carried out by using a generally used method. Thus, comparing the present invention with the conventional methods, in the case of a tread member having a relatively thin thickness of around 8 mm, the present invention allows a length of the tread member
62
which is 1.8 times that in the conventional art to be wound around the take-up reel
72
. In the case of a tread member having an average thickness of about 10 mm, the present invention allows a length of the tread member
62
which is about 1.5 times or less that in the conventional art to be wound around the take-up reel
72
.
As a result, the number of reels
72
and the amount of the liner
68
held can be made about ⅔ of that in the conventional art.
Second Embodiment
A second embodiment of the present invention will be described hereinafter with reference to
FIGS. 5 and 6
. Structures which are the same as those of the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.
As illustrated in
FIGS. 5 and 6
, in the present second embodiment, the air cylinders
44
are disposed horizontally at the setting surface
12
.
A substantially U-shaped notch
80
is formed in the distal end of the piston rod
50
. The shaft
38
at which the driven roller
40
is provided can be inserted into the notch
80
. One end side of the shaft
38
is inserted into the notch
80
of the piston rod
50
of one air cylinder
44
, whereas the other end of the shaft
38
is inserted into the notch
80
of the piston rod
50
of another air cylinder
44
.
Small rollers
82
are rotatably supported at the shaft
38
at the sides of the driven roller
40
. The small rollers
82
are disposed on rails
84
provided at the setting surface
12
, and support the load of the take-up reel
72
applied to the driven roller
40
.
Next, operation of the storing device
10
of the present second embodiment will be described.
In the present second embodiment, first, as illustrated by the two-dot chain line in
FIG. 5A
, the piston rods
50
of the air cylinders
44
are extended (the first state of the present invention), and in a state in which the driven roller
40
is apart from the piston rods
50
, the reel
72
is rolled and is made to abut the drive roller
30
.
Next, the driven roller
40
is attached to the piston rods
50
, and the piston rods
50
of the air cylinders
44
are retracted (the second state of the present invention).
In this way, the driven roller
40
abuts the flanges
78
, and as illustrated by the solid lines in
FIG. 5A
, the reel
72
is raised up, moves apart from the setting surface
12
, and is supported by the drive roller
30
and the driven roller
40
.
Thereafter, the reel
72
is rotated and stored in the same way as in the first embodiment.
The effects of the present embodiment are the same as those of the first embodiment.
Third Embodiment
A third embodiment of the present invention will be described hereinafter with reference to
FIGS. 7 and 8
. In the present storing device, structures which are the same as those of the above-described embodiments are denoted by the same reference numerals, and description thereof will be omitted.
As illustrated in
FIGS. 7 and 8
, in the present third embodiment, the air cylinders
44
and the rails
84
, which are similar to those of the second embodiment, are supported horizontally on the top portions of supporting columns
86
.
Next, operation of the storing device
10
of the present third embodiment will be described.
In the present third embodiment, first, as illustrated by the two-dot chain lines in
FIG. 7
, the piston rods
50
of the air cylinders
44
are extended (the first state of the present invention), and in a state in which the driven roller
40
is away from the piston rods
50
, the reel
72
is rolled and made to abut the drive roller
30
.
Next, the driven roller
40
is attached to the piston rods
50
, and the piston rods
50
of the air cylinders
44
are retracted (the second state of the present invention).
In this way, the drive roller
40
abuts the drum
76
, and as illustrated by the solid lines in
FIG. 7
, the reel
72
is raised up, moves apart from the setting surface
12
, and is supported by the drive roller
30
and the driven roller
40
.
Thereafter, in the same way as the previously-described embodiments, the reel
72
is rotated and stored.
The effects of the present third embodiment are the same as those of the previously-described embodiments.
Fourth Embodiment
A fourth embodiment of the present invention will be described hereinafter with reference to
FIGS. 9 and 10
. Structures which are the same as those of the above-described embodiments are denoted by the same reference numerals, and description thereof will be omitted.
As illustrated in
FIGS. 9 and 10
, in the present embodiment, the air cylinders
44
are provided vertically on the setting surface
12
.
In the present fourth embodiment, the shaft
38
at which the driven roller
40
is provided is fixed to the piston rods
50
of the air cylinders
44
.
Next, operation of the storing device
10
of the present fourth embodiment will be described.
In the present fourth embodiment, first, as illustrated by the two-dot chain lines in
FIG. 9
, the piston rods
50
of the air cylinders
44
are withdrawn (the first state of the present invention), and the reel
72
is rolled and made to abut the drive roller
30
.
Next, the piston rods
50
of the air cylinders
44
are protruded (the second state of the present invention).
In this way, the driven roller
40
abuts the drum
76
, and as illustrated by the solid lines in
FIG. 9
, the reel
72
is raised up, moves apart from the setting surface
12
, and is supported by the drive roller
30
and the driven roller
40
.
Thereafter, in the same way as in the above-described embodiments, the reel
72
is rotated and stored.
The effects of the present fourth embodiment are the same as those of the previously-described embodiments.
In the above-described embodiments, an example is described in which the elongated plastically deformable member is a tread member of the tire. However, the present invention can be applied to any rubber product or intermediate member which is elongated and plastically deforms easily, such as a side rubber, an inner liner, a chafer, or the like.
Fifth Embodiment
A fifth embodiment of the present invention will be described hereinafter with reference to
FIGS. 11 and 12
. Structures which are the same as those of the above-described embodiments are denoted by the same reference numerals, and description thereof will be omitted.
As illustrated in
FIGS. 11 and 12
, supporting columns
88
are provided erect at the frame
14
in vicinities of the shaft supporting portions
16
.
An arm
92
is swingably mounted, via a pin
90
, to the upper portion of the supporting column
88
.
The piston rod
50
of the air cylinder
44
is connected, via a pin
94
, to the end portion of the arm
92
at the side opposite the pin
90
side.
A support roller
96
, which supports the drum
76
of the reel
72
, is provided at an intermediate portion of the arm
92
.
An insertion guide
98
of the reel
72
is provided at the frame
14
. A supporting column
104
, to which an operation lever
100
of the air cylinder
44
is mounted, is provided at the frame
14
.
Next, operation of the storing device
10
of the present embodiment will be described.
In the present fifth embodiment, first, as illustrated by the two-dot chain line in
FIG. 11
, the piston rods
50
of the air cylinders
44
are retracted so that the arms
92
are lowered, and the support rollers
96
are positioned lower than the bottom end of the drum
76
of the reel
72
(the first position of the present invention).
Next, the reel
72
is made to roll, and abuts the drive roller
30
.
Subsequently, the piston rods
50
of the air cylinders
44
are extended, and the arms
92
are raised (the second position of the present invention).
In this way, the support rollers
96
abut the drum
76
, and, as illustrated by the solid lines in
FIG. 11
, the reel
72
is raised. The reel
72
moves away from the setting surface
12
and is supported by the drive roller
30
and the support rollers
96
.
Thereafter, in the same way as the previously-described embodiments, the reel
72
is rotated and stored.
The effects of the present embodiment are the same as those of the previously-described embodiments.
Sixth Embodiment
A sixth embodiment of the present invention will be described hereinafter with reference to
FIGS. 13 and 14
. Structures which are the same as those of the above-described embodiments are denoted by the same reference numerals, and description thereof will be omitted.
As illustrated in
FIGS. 13 and 14
, a supporting column
106
is provided so as to stand at the frame
14
.
A T-shaped arm
110
is swingably mounted, via a pin
108
, to the upper portion of the supporting column
106
.
The piston rod
50
of the air cylinder
44
is connected, via a pin
112
, to one end of the T-shaped arm
110
.
A support roller
114
, which supports the drum
76
of the reel
72
, is provided at the other end portion of the T-shaped arm
110
.
A taper guide
115
and a support roller
119
, which support the drum
76
of the reel
72
, are provided at the intermediate portion of the supporting column
106
.
The taper guide
115
includes an inclined surface
115
A and a horizontal surface
115
B. When the drum
76
rolls on the horizontal surface
115
B, the flanges
78
move apart from the setting surface
12
.
Further, a support roller
117
, which supports the drum
76
of the reel
72
, is provided at the side surface of the supporting column
106
.
An insertion guide
116
of the reel
72
is provided at the upper portion of the supporting column
106
. An arm
118
, to which the operation lever
100
of the air cylinder
44
is mounted, is provided at the upper portion of the supporting column
106
.
Next, operation of the storing device
10
of the present embodiment will be explained.
In the present embodiment, first, as illustrated by the two-dot chain line in
FIG. 13
, the piston rods
50
of the air cylinders
44
are retracted, and the support rollers
114
of the T-shaped arms
110
are raised. The support rollers
114
are positioned above the top end of the drum
76
of the reel
72
.
Next, the reel
72
is made to roll so that the drum
76
is set on the taper guides
115
. The reel
72
is then rolled further so that the drum
76
set on the support rollers
119
. The reel
72
thereby moves apart from the setting surface
12
.
Next, the piston rods
50
of the air cylinders
44
are extended, the T-shaped arms
110
are rotated, and the support rollers
114
are made to abut the flanges
78
.
In this way, in the state in which the reel
72
is separated from the setting surface
12
, the reel
72
is supported by the support rollers
119
, the support rollers
114
, the support rollers
117
and the drive roller
30
.
Thereafter, in the same way as in the previously-described embodiments, the reel
72
is rotated and stored.
The effects of the present embodiment are the same as those of the previously-described embodiments.
In the above-described fifth and sixth embodiments, a tire tread member is given as an example of the elongated plastically-deformable member. However, the present invention is applicable to any rubber product or intermediate member which is elongated and plastically deforms easily, such as a side rubber, an inner liner, a chafer, or the like.
As described above, in accordance with the device and method for storing an elongated plastically deformable member of the present invention, a take-up reel, on which an elongated plastically deformable member is wound, is stored while being rotated constantly or intermittently by a rotating means. Thus, the load caused by the wound elongated plastically deformable member itself can be applied uniformly to the entire wound circumference in accordance with the rotation of the take-up reel. Thus, local deformation of the elongated plastically deformable member, and non-uniform deformation in particular, can be prevented. Further, the elongated plastically deformable member is taken-up together with a liner onto the take-up reel. As the winding efficiency is improved and thus the device as a whole can be made simpler, the cost for manufacturing/maintaining the entire device can be reduced.
Claims
- 1. A method for storing an elongated plastically deformable member wound on a take-up reel together with a thin-plate-shaped liner superposed with the elongated plastically deformable member, the take-up reel having an axis which is disposed substantially horizontal with respect to a setting surface on which the take-up reel is set, comprising the step of rotating the take-up reel on which the liner and the elongated plastically deformable member have been wound at least one of constantly and intermittently so that collapsing deformation of the elongated plastically deformable member caused by the load of the member itself is made uniform along the entire longitudinal direction.
- 2. The method for storing an elongated plastically deformable member according to claim 1, further comprising the steps of:(a) rotating the take-up reel an amount substantially equal to a given angle in a first direction; (b) thereafter rotating the take-up reel an amount substantially equal to said given angle in the opposite direction; and (c) alternately repeating rotation of the take-up reel in said first and opposite directions until storage on the take-up reel is completed.
- 3. The method for storing an elongated plastically deformable member according to claim 2, further comprising the step of selecting the given angle from 180° and some integer multiple thereof.
- 4. The method for storing an elongated plastically deformable member according to claim 1, wherein the step of rotating the take-up reel at least one of constantly and intermittently includes the sub-steps of:abutting the take-up reel against a first roller; abutting another roller against the take-up reel spaced apart from the first roller; supporting the take-up reel between the rollers; and rotating at least one of the rollers, thereby causing the take-up reel to rotate.
- 5. The method for storing an elongated plastically deformable member according to claim 4, wherein the step of abutting the take-up reel against a first roller includes the sub-step of withdrawing said another roller to a position wherein said another roller does not substantially interfere with movement of the take-up reel.
- 6. A device for use in storing an elongated plastically deformable member wound on a take-up reel with a thin-plate-shaped liner superposed with the elongated plastically deformable member, the take-up reel having an axis which is substantially horizontal, the device comprising a rotating mechanism adapted to rotate the take-up reel at least one of constantly and intermittently.
- 7. The device for use in storing an elongated plastically deformable member according to claim 6, wherein the rotating mechanism rotates the take-up reel over a given angle in a first direction of rotation, and thereafter, the rotating mechanism rotates the take-up reel in another direction, and alternately repeats rotating in said first direction and said another direction of rotation.
- 8. The device for use in storing an elongated plastically deformable member according to claim 7, wherein the given angle is substantially equal to an angle selected from the group consisting of 180° and an integer multiple of 180°.
- 9. The device for use in storing an elongated plastically deformable member according to claim 6, wherein the rotating mechanism includes a pair of rollers which abut the take-up reel when the rotating mechanism rotates the take-up reel.
- 10. The device for use in storing an elongated plastically deformable member according to claim 9, wherein the rotating mechanism includes a rotating driving member, and one roller of the pair of rollers is a drive roller connected to the rotating driving member, and another roller of the pair of rollers is a driven roller.
- 11. The device for use in storing an elongated plastically deformable member according to claim 10, further comprising a moving member connected to the driven roller so as to be able to move the driven roller from a first position to a second position, and when the driven roller is moved from the first position to the second position by the moving member, the take-up reel is raised up off of the setting surface by the driven roller and the drive roller.
- 12. The device for use in storing an elongated plastically deformable member according to claim 11, wherein the driven roller is removably connected to the moving member.
- 13. The device for use in storing an elongated plastically deformable member according to claim 11, wherein the drive roller is rotated by the rotation of the take-up reel when the take-up reel is raised up off of the setting surface by the driven roller and the drive roller.
- 14. A device for use in storing an elongated plastically deformable member which has been wound on a take-up reel along with a thin-plate-shaped liner superposed with the elongated plastically deformable member, the device comprising:a pair of rollers which are provided so as to be able to abut and support the take-up reel, and a rotating driving member which drives and rotates one roller of the pair of rollers, wherein the other roller of the pair of rollers is movable from a first position to a second position, and when the other roller is positioned at the second position, the take-up reel is lifted and rotatably supported by the one roller and the other roller.
- 15. The device for use in storing an elongated plastically deformable member according to claim 14, further comprising a rotating mechanism which rotates the take-up reel in a first direction over a given angle, and thereafter, the rotating mechanism rotates the take-up reel in another direction, and alternately repeats rotating the take-up reel in said first and said another directions.
- 16. The device for use in storing an elongated plastically deformable member according to claim 15, wherein the given angle is substantially equal to one of 180° or some integer multiple thereof.
- 17. The device for use in storing an elongated plastically deformable member according to claim 14, wherein said other roller is a driven roller.
- 18. The device for use in storing an elongated plastically deformable member according to claim 14, further comprising a moving member connected to said other roller, wherein the moving member moves said other roller from the first position to the second position.
- 19. The device for use in storing an elongated plastically deformable member according to claim 18, wherein said other roller is removably connectable to the moving device.
Priority Claims (2)
Number |
Date |
Country |
Kind |
11-161071 |
Jun 1999 |
JP |
|
2000-121141 |
Apr 2000 |
JP |
|
US Referenced Citations (11)