JP4111291B2 - Crushable square plastic bottle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a square plastic bottle that can be crushed and a crushing method thereof.
[0002]
[Prior art]
In recent years, disposal of plastic waste has become a major problem, and recycling of used plastic containers has been implemented mainly in PET bottles.
Further, in order to reduce the volume of waste, the bottles are crushed, and square PET bottles that can be crushed are also known.
[0003]
[Problems to be solved by the invention]
The conventional square bottle is provided at the bottom of the barrel, with a rib extending horizontally or corrugated in the horizontal direction, a short rib for facilitating the formation of a crease continuous with the rib, and a bottle body. It has vertical ribs and presses the body part from the front and back in the radial direction to make it flat, and then folds the flat body part from the bottom part in the direction of the bottle axis and rolls it up sequentially, or the bottom part and the body part The lower end is flattened, bent in the direction of the bottle axis, and rounded while being flattened toward the mouth to make a waste bottle.
[0004]
However, since ribs extending in the longitudinal direction are not provided throughout the entire body part, when the body part is pressed from the front and back in the radial direction, the bent end portions on both sides of the flat body part become curved surfaces, and the flat body part is opposed to it. Some thickness remained between the surfaces, and the bent ends on both sides did not extend linearly.
For this reason, when rounding the flat barrel part, there is a problem that it cannot be easily rounded unless a further pressing force is applied and the bent parts on both sides are flattened, and crushing cannot be done easily and completely. there were.
And in the case of a soft synthetic resin, or in the case of a thin PET bottle, it can be easily rounded and crushed, but in the case of a PET bottle having a certain thickness or a thick hard synthetic resin, There was a problem that crushing was difficult.
[0005]
The present invention solves the above-mentioned problems, and in a square bottle, the center part of the opposing surface on both sides of the bottle body part is projected outward and bent, the body part is made flat, and then the body part made flat An object of the present invention is to provide a squeezable rectangular plastic bottle that is folded in a state where the bottom part is folded and is in contact with the surface of the body part and discarded, and a crushing method thereof.
[0006]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention provides a rectangular plastic bottle having a rectangular tube shape including a mouth tube portion, a shoulder peripheral wall including a pyramid portion and a square tube portion, and an upper body portion and a lower body portion. A square plastic bottle having a trunk peripheral wall and a bottom wall , each shoulder peripheral wall including a shoulder lateral rib on a pyramid portion, and two inclined ribs below the shoulder lateral rib Are arranged in a V-shape, and on each wall surface of the body peripheral wall, a vertical rib is disposed in the center of the upper body part, a horizontal rib is disposed at a predetermined position, and a lower body part is disposed on the lower body part. The two inclined ribs are arranged in an inverted V shape, and groove-like lateral ribs are arranged at the connection portions between the shoulder peripheral wall and the upper trunk portion and between the upper trunk portion and the lower trunk portion. The structure characterized by this is adopted.
[0007]
Further, as another embodiment of the square plastic bottle, a mouth tube portion, a shoulder peripheral wall made up of a pyramid portion and a square tube portion, a square tube-like body peripheral wall made up of an upper body portion and a lower body portion, and a bottom wall A square plastic bottle provided with a shoulder lateral rib in the pyramid portion on each wall of the shoulder peripheral wall, and two inclined ribs arranged in a V shape below the shoulder lateral rib. Each of the wall surfaces of the trunk peripheral wall is provided with a trunk lateral rib at a predetermined position of the upper trunk, and upper and lower lateral ribs disposed on the left and right above and below the trunk lateral rib, and A plurality of corrugated ribs composed of inclined ribs that are continuous at the center end portion are arranged, and two inclined ribs are arranged in an inverted V shape on the lower trunk portion, and the shoulder peripheral wall and the upper trunk portion The structure characterized by the groove-shaped horizontal rib being arrange | positioned at each connection part of a part, an upper trunk | drum, and a lower trunk | drum is employ | adopted.
[0008]
In order to prevent bottle weakening due to the concentration of ribs, there is a gap between the ribs at the lower end of the inclined ribs on the shoulder peripheral wall, the central part of the grooved horizontal ribs, the upper end of the inclined ribs on the lower body and the central part of the grooved horizontal ribs. A configuration is adopted in which a fixed interval is provided in the case.
[0009]
The method of crushing a square plastic bottle includes a mouth tube portion, a shoulder wall made up of a pyramid portion and a square tube portion, a tube tube wall made up of an upper body portion and a lower body portion, and a bottom wall. In a rectangular plastic bottle, by pressing the front and rear side surfaces of the upper body part facing the front and rear sides from the front and rear, the left and right side walls of the body peripheral wall are projected outward with the center line as a crease. At the same time, the lower end central part of the left and right side walls of the shoulder peripheral wall and the upper end central part of the left and right side walls of the lower body part are projected outward to form the deformed shoulder part and the deformed bottom part, and then the deformed shoulder part and the deformed bottom part Is bent in the same direction with respect to the wall surface of the flat barrel, and then the deformed bottom is folded so that the bottom wall is joined to the side wall surface of the flat barrel, and the end of the deformed bottom is formed by the shoulder peripheral wall of the deformed shoulder Between the curved surface and the side wall of the flat body I folded it is an waste bottle folded to maintain the state.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Next, a first embodiment of the present invention will be described with reference to the drawings.
As shown in FIGS. 1, 2, and 3, the bottle is composed of a mouth tube portion 1, a shoulder peripheral wall 2 having a square cross section, a trunk peripheral wall 3 having a square cross section and a bottom wall 4, and is blown with PET or other hard synthetic resin. Molded.
[0011]
An engagement protrusion 5 and a holding ring 6 are provided on the mouth tube portion 1.
The shoulder peripheral wall 2 has a corner portion following the cylindrical mouth tube portion 1 as an arc, a short pyramid portion 7 having a square section smoothly curved in the vertical direction, and a short height having an arc portion following the pyramid portion as an arc. And a rectangular tube portion 8.
[0012]
A shoulder lateral rib 9 is disposed on each of the four side walls of the shoulder peripheral wall 2, that is, the front and rear side walls 2a and 2b and the left and right side walls 2c and 2d. 9 is divided into an upper part and a lower part.
In the lower portion, two inclined ribs 10a, b extending from the pyramid portion 7 to the lower end of the square tube portion 8 are arranged in a V shape with their lower ends intersecting.
At the lower end of the shoulder peripheral wall 2, an upper groove-like lateral rib 11 is disposed around the peripheral wall connecting the shoulder peripheral wall 2 and the upper end of the trunk peripheral wall 3.
[0013]
The trunk peripheral wall 3 is a quadrangular cylindrical body having a circular arc at the corner, and is composed of an upper trunk 12 and a slightly enlarged lower trunk 13, and between the upper trunk 12 and the lower trunk 13. Is provided with a lower groove-like lateral rib 14 surrounding the peripheral wall.
The lower groove-like lateral ribs 14 are each composed of right and left ribs 14a and 14b extending from the center of the side wall surface so as to be inclined slightly downward from the center of the side wall surface to the left and right sides. It connects with the lower groove-like lateral rib 14 side end part of the adjacent side wall at the corner of the peripheral wall 3.
[0014]
At the center of the four side walls of the upper body 12, that is, the front and rear side walls 12 a and 12 b and the left and right side walls 12 c and 12 d, are continuously connected to the V-shaped lower ends of the inclined ribs 10 of the shoulder peripheral wall rectangular tube portion 8. A vertical rib 15 is provided, and the lower end thereof is connected to the central portion of the lower groove-shaped horizontal rib 14.
[0015]
At predetermined positions on the surfaces of the side walls 12 a, b, c, and d, the trunk lateral ribs 16 are disposed so as to intersect the longitudinal ribs 15. The longitudinal ribs 15 are disposed above and below the trunk lateral ribs 16. Corrugated reinforcing panels 17a and 17b having a predetermined height are disposed therebetween.
Reinforcing ribs 18 are provided so as to surround the reinforcing panels 17a, b, and the ribs 18 are composed of an upper rib 18a, a lower rib 18b, and a side rib 18c.
[0016]
Two inclined ribs 19a, which are continuous with the center of the lower groove-shaped lateral rib 14 and extend in the shape of an inverted V to the left and right, are provided on the wall surfaces of the front and rear side walls 13a, 13b and the left and right side walls 13c, 13d. b is arranged.
[0017]
As shown in FIG. 3, the shoulder lateral rib 9, the inclined ribs 10, 19 and the longitudinal rib 15 are arc-shaped in cross section and are connected with side walls and arcs on both sides, and the upper groove-shaped lateral rib 11, As shown in FIG. 1, the lower groove-shaped lateral rib 14 is a trapezoidal groove in cross section, and the groove bottom corner is formed to have a certain angle.
[0018]
Each of the above ribs is a variable rib for deforming the wall surface, and it is difficult to bend in the longitudinal direction and has a role as a reinforcing rib. However, the rib cross-section is deformed in the lateral direction and the connecting portion with the wall surface is bent. The wall surfaces on both sides can be easily bent with the variable rib as an axis.
When the bending angle is increased, plastic deformation occurs exceeding the elastic limit at the connecting portion with the rib main body or the wall surface, and the deformed shape can be maintained.
[0019]
Next, the crushing action of the bottle will be described with reference to the drawings.
First, the outline of the crushing method of the bottle will be described. First, the front and back side walls 12a and 12b of the upper body 12 of the body wall 3 are pressed, and as shown in FIGS. The central portion of d is projected outward, the longitudinal ribs 15 are bent as creases, and the trunk peripheral wall 3 is flattened to form the flat trunk portion 3A.
When the portions close to the corners of the upper groove-shaped horizontal ribs 11 and the lower groove-shaped horizontal ribs 14 are pressed, the upper barrel portion 12 is flattened, and at the same time, the rectangular tube portion 8 of the shoulder peripheral wall 2 and the left and right sidewalls of the lower barrel portion 13 13a, b center part will project outward (here front and back, left and right are based on the bottle axis in FIGS. 1, 2 and 3 and the front and back when the axis of the bottle is horizontal) Up and down).
[0020]
As shown in FIGS. 5 and 7, the shoulder peripheral wall 2 is a deformed shoulder portion 2 </ b> A including a pyramid-shaped upper portion and a lower portion whose longitudinal section is substantially a triangle.
As shown in FIGS. 6 and 7, the lower body portion 13 is rotationally bent with the lower groove-like lateral rib 14 as an axis, and a deformed bottom portion 4 </ b> A having a substantially triangular cross section with the bottom wall 4 is formed.
Thus, a flat bottle composed of the deformed shoulder 2A, the flat trunk 3A and the deformed bottom 4A as shown in FIGS. 4 to 7 can be obtained.
[0021]
Next, as shown in FIG. 9, the deformed shoulder portion 2A and the deformed bottom portion 4A of the bottle are turned and bent on the same side around the upper and lower groove-like lateral ribs 11 and 14, respectively.
Next, the deformed bottom portion 4A is folded upward, the end edge of the bottom wall 4 is locked to the upper groove-like lateral rib 11, and the curved surface formed on the side wall lower portion 2aa of the folded shoulder peripheral wall 2 and the flat trunk portion 3A. If it is made to hold | grip on the side wall surface of this, a folding disposal bottle as shown in FIG. 10 can be obtained.
[0022]
Next, the action at the time of crushing based on the configuration of the bottle will be described.
First, when the wall surfaces of the front and rear side walls 12a and 12b facing the upper body 12 are pressed from the front and rear as shown by the arrows in FIGS. 2 and 3, as shown in FIGS. The wall surfaces of the left and right side walls 12c and 12d project outward with the vertical ribs 15 as creases, the corners of the waist wall 2 become flat, and the front and rear side walls 12a and 12b are pressed against each other, so that the left and right side walls 12c and 12d It becomes the same plane as one side of the wall surface of 12d.
At the same time, the central portion of the rectangular tube portion 8 of the left and right side walls 2c, 2d of the shoulder peripheral wall 2 and the central portion of the left and right side walls 13c, 13d of the lower body portion 13 are projected outward.
[0023]
The shoulder peripheral wall 2 is thick at the upper part of the shoulder lateral rib 9 of the mouth tube part 1 and the shoulder peripheral wall pyramid part 7, and since the shoulder lateral rib 9 is not bent in the longitudinal direction, the upper part is almost deformed. do not do.
The inclined rib 10 is difficult to deform in the longitudinal direction but is bendable. In the lower portions of the left and right side walls 2c and 2d of the shoulder peripheral wall 2, the lower end of the inclined rib 10 is attracted to the vertical ribs 15 of the side walls 12c and 12d. Projecting outward, a substantially triangular plane is formed by the shoulder lateral rib 9 and the two inclined ribs 10a and 10b.
In the lower portions 2aa and 2bb of the front and rear side walls 2a and 2b, the inclined rib 10 acts between the shoulder lateral rib 9 and the upper groove-shaped lateral rib 11 so as to curve the wall surface.
[0024]
Thus, the shoulder peripheral wall 2 is deformed, and the upper portion of the shoulder lateral rib 9 is formed with a shoulder portion that is not deformed, and the upper groove-shaped lateral rib 11 is bent at the lower portion to form two parallel straight lines. Between the shoulder lateral rib 9 and the upper groove-shaped lateral rib 11, a deformed shoulder 2 </ b> A comprising curved front and rear side wall lower portions 2 aa and 2 bb and left and right triangular side walls is formed.
[0025]
As shown in FIGS. 4 and 6, the lower body 13 is bent at the center portion and drawn toward the lower groove-like lateral ribs 14 of the left and right side walls 13 c and 13 d according to the outward projecting of the upper body 12. As a result, the upper ends of the inclined ribs 19 a and 19 b move outward, and a substantially triangular inclined plane is formed between the inclined ribs 19 a and 19 b and the edge of the bottom wall 4.
[0026]
The wall surfaces of the front and rear side walls 13a and 13b rotate around the lower groove-shaped lateral rib 14 as an axis, become flush with one side surface of the left and right side walls 13c and 13d, and form a substantially trapezoidal surface.
The lower groove-shaped lateral rib 14 is bent at the center of the left and right side walls 13c, d, and becomes two substantially parallel straight lines.
Thus, the lower body portion 13 is deformed to form a trapezoidal plane formed by the lower groove-shaped lateral rib 14 and the edge of the bottom wall 4, and a triangular plane formed by the inclined ribs 19a, b and the bottom wall edge. And the deformation | transformation bottom part 4A which consists of the square bottom wall 4 is formed.
[0027]
Next, when the deformed bottom portion 4A is bent such that one of the front and rear side wall surfaces 13a and 13b of the lower body 13 is flush with the front and rear side walls 12a and 12b of the upper body 12 on the same side. As shown in FIG. 8, a flat crushing bottle is formed.
[0028]
In that case, for example, when the rear side wall 13b of the lower body part 13 is rotated until it becomes substantially the same plane as the side wall 12b of the upper body part 12, the lower groove-like lateral ribs 14a, b are formed on both sides from the center. 4, the right side of the front side wall 13a rotates around the right rib 14a, and the left side of the right side wall 13d rotates around the left rib 14b. At the corner portion connecting the side wall 13a and the side wall 13d, a force acts so that both wall surfaces are pressed against each other.
The same applies to the left half of the figure, and the force pressing the wall surface acts to maintain the deformed state of the trapezoidal plane when the wall surface is rotated over 90 degrees.
[0029]
Next, the deformed shoulder 2A is bent in the same direction as the deformed bottom 4A with the lower groove-shaped lateral rib 14 as an axis.
At that time, not only the deformation of the upper groove-shaped lateral rib 11 but also the deformation of the upper body 12 are accompanied as shown in FIG.
That is, the upper body portion 12 is bent at the front side wall 12a on the folding side, with the upper rib 18a of the reinforcing rib 18 being a crease, and the upper end of the side surface of the front side wall 12a is bent.
[0030]
The upper groove-like lateral rib 11 is folded so that the rib cross section is closed on the bent side, that is, the front side wall 2a side of the shoulder peripheral wall, and the rib cross section is opened on the rear side wall 2b side. The upper groove-shaped lateral rib 11 is restored, so that the angle formed by the rear side wall 12b of the upper trunk portion 12 and the curved surface of the rear side wall lower portion 2bb is widened so that the shoulder peripheral wall 2 is kept bent. Works.
Then, on the side of the front side wall 2a, an angle formed by a line connecting the trunk side lateral rib 16 of the upper body front side wall 12a and the upper grooved lateral rib 11 and the curved surface of the front side wall lower portion 2aa due to the bending of the upper rib 18a. Is reduced to 90 degrees or less.
[0031]
Next, when the deformed bottom portion 4A is bent upward from the state of FIG. 8, the bottom wall edge 4a reaches to the vicinity of the trunk lateral rib 16 as shown in FIG.
Further, when the deformed bottom portion 4A is folded on the flat body portion 3A, the flat body portion 3A bends with the body portion lateral rib 16 as a fold as shown in FIG. 10, and the other bottom wall of the deformed bottom portion 4A. The edge 4b engages with the upper groove-shaped lateral rib 11, and the wall surface of the bottom wall 4 of the deformed bottom portion 4A and the side wall 13b of the lower trunk portion of the shoulder peripheral wall 2 bent with the upper groove-shaped lateral rib 11 as an axis. It is pressed by the curved surface of the front side wall lower portion 2aa and the folded state is maintained.
Thus, a folded waste bottle as shown in FIG. 10 can be obtained, and even if discarded as it is, it is not easily restored unless an external force is applied.
[0032]
Next, a second embodiment will be described.
In the present embodiment, the shape and arrangement of the ribs of the first embodiment are changed.
Hereinafter, a description will be given focusing on differences from the first embodiment.
As shown in FIG. 11, the bottle includes a mouth tube portion 30, a shoulder peripheral wall 31 having a square cross section, a body peripheral wall 32 having a square cross section, and a bottom wall 33, and is blow-molded with PET or other hard synthetic resin. .
The shoulder peripheral wall 31 having a square cross section and the body peripheral wall 32 having a square cross section have four side walls on the front, rear, left, and right sides, and the side surfaces thereof are common. Therefore, only the configuration of the front wall surface that is one side surface will be described below. .
[0033]
The shoulder peripheral wall 31 includes a pyramid portion 34 and a square tube portion 35 as in the first embodiment.
On each side wall of the shoulder peripheral wall 31, a shoulder lateral rib 36 is disposed at the pyramid portion 34, and two inclined ribs 37 a and 37 b are adjacent to each other from below the pyramid portion 34 to the square tube portion 35. They are arranged symmetrically.
At the lower end of the shoulder peripheral wall 31, an upper groove-shaped lateral rib 38 that connects the shoulder peripheral wall 31 and the upper end of the trunk peripheral wall 32 is disposed at a constant interval in the center.
[0034]
Each side wall of the trunk circumferential wall 32 is composed of an upper trunk section 39 and a lower trunk section 40, and trunk lateral ribs 41 surrounding the trunk circumferential wall 32 are disposed at predetermined positions of the upper trunk section 39.
A right rib extending between the upper body portion 39 and the lower body portion 40 with an end portion positioned at a certain distance from the center of the side wall surface and inclined slightly downward from the end portion toward the left and right sides. A lower groove-shaped horizontal rib 42 including a left-side rib 42 b and a left-side rib 42 b is provided, and is connected to an end portion of the lower groove-shaped horizontal rib 42 on the adjacent side wall at the corner of the trunk circumferential wall 32.
[0035]
A plurality of corrugated ribs 43 are disposed on each side wall surface of the upper trunk portion 39.
The corrugated rib 43 connects the lower rib 43b disposed on the opposite side of the center line of the wall surface with the upper rib 43a, and the inner ends of the upper rib 43a and the lower rib 43b, and is narrower than the upper and lower ribs 43a and 43b. It consists of an inclined rib 43c.
On the opposite side of the center line of the upper rib 43a of the uppermost corrugated rib 43 and the lower rib 43b of the lowermost corrugated rib 43 disposed above and below the trunk lateral rib 41 of the upper trunk 39, there are upper and lower ribs. The horizontal ribs 44a, b having substantially the same shape as 43a, 43b are disposed, and the horizontal ribs 44a, 44b are arranged on the same axis as the corresponding upper rib 43a or lower rib 43b.
[0036]
On the side wall surface of the lower body portion 40, there are two inclined ribs 45 a and 45 b below the lower groove-like lateral rib 42, having an upper end portion with a constant interval in the center portion and spreading downward on both sides. It is arranged.
[0037]
In the present embodiment, the inclined ribs 37a and b of the shoulder peripheral wall 31 and the upper groove-shaped horizontal rib 38, the lower groove-shaped horizontal rib 42 and the inclined ribs 45a and 45b are arranged at a constant interval at the center of the wall surface. Concentration of stress at the rib connecting portion can be avoided, and furthermore, since a plurality of corrugated ribs 43 are arranged in parallel on the side wall surface, it can cope with expansion and contraction due to the temperature of the circumferential wall 32, and the bottle is strengthened. ing.
Further, it is possible to apply the first embodiment to dispose the ribs so that the ribs are spaced apart from each other.
[0038]
Next, the operation at the time of crushing the bottle will be described.
The four side walls on the front, rear, left and right are the same as those in the first embodiment.
The outline of the crushing method of the bottle is the same as the crushing method of the first embodiment. First, the flat barrel portion 3A is formed, and subsequently, the deformed shoulder portion 2A and the deformed bottom portion 4A are formed.
Next, the deformed bottom portion 4A and the deformed shoulder portion 2A are rotated to the same side around the upper and lower groove-shaped lateral ribs 38, 42, respectively, and the deformed bottom portion 4A is folded upward so that the edge of the bottom wall 33 is A folded waste bottle as shown in FIG. 10 can be obtained by engaging with the upper groove-shaped lateral rib 38 and sandwiching it between the curved surface of the deformed shoulder portion 2A and the side wall surface of the flat trunk portion 3A.
[0039]
Next, the action at the time of crushing based on a configuration different from the first embodiment regarding the shape and arrangement of the ribs will be described.
In forming the flat barrel portion 3A, the bulging and folding of the upper circumferential portion 39 of the barrel peripheral wall to the outside of the left and right side wall surfaces is folded with the inclined rib 43c of the corrugated rib 43 as a fold, and the wall portion without the rib is the inclined rib. It folds continuously at 43c, and folds that are linearly continuous up and down are formed.
And although the shape of a rib differs, the flat trunk | drum 3A as shown to FIGS. 4-7 is formed.
[0040]
In forming the deformed shoulder portion 2A, the central portion of the left and right side walls of the shoulder peripheral wall 31 is drawn to the overhang of the left and right side wall surfaces of the upper trunk portion 39, the lower portion of the shoulder peripheral wall 31 projects outward, and the shoulder lateral ribs 36 and the inclined ribs 37a and 37b form a triangular plane as shown in FIG.
At this time, even if the lower ends of the inclined ribs 37a and 37b are not connected, the crease is formed continuously on the side wall surface of the trunk peripheral wall, and the presence or absence of the gap is not affected.
[0041]
In the formation of the deformed bottom portion 4A and the deformation of the lower body portion 40, the center portions of the left and right side walls of the lower body portion 40 are drawn according to the overhang of the upper body portion 39, and the bottom wall 33 and the inclined rib as shown in FIG. A triangular plane is formed by 45a and 45b.
The upper groove-shaped horizontal ribs 38 and the lower groove-shaped horizontal ribs 42 are also formed with discontinuous portions at regular intervals in the center, but for folding the shoulder peripheral wall 31 and bending the lower trunk 40 It does not affect.
[0042]
The deformation order of the deformed shoulder portion 2A, the flat barrel portion 3A, and the deformed bottom portion 4A is the same as that of the first embodiment. Therefore, the second embodiment also has the same functions and effects as the first embodiment. And a folded waste bottle as shown in FIG. 10 can be obtained.
[0043]
In each of the above embodiments, the engaging protrusion 5 is engraved on the mouth tube portion to use a stoppered cap and an inner plug. However, a screw is engraved on the outer periphery of the mouth tube portion and a screw cap is used. You may do it.
Further, the shape of the corrugated reinforcing panel 17 disposed in the center of the surface of each side peripheral wall and the reinforcing rib 18 surrounding the reinforcing panel 17 can be appropriately changed, and may not be formed depending on circumstances. Good.
[0044]
【The invention's effect】
Since this invention is comprised as mentioned above, there exists the following effect.
A vertical rib or an inclined portion of a corrugated rib is arranged at the center of the bottle's trunk wall, a V-shaped rib is arranged at the shoulder wall, and an inverted V-shaped rib is arranged at the lower trunk, so that the peripheral wall is folded outward at the center of the left and right wall surfaces. Therefore, the surface of the trunk peripheral wall can be a thin flat trunk portion having a predetermined shape.
Next, since the flat body portion is folded, the bottle can be easily folded into a predetermined shape, and the capacity of the crushing bottle can be reduced.
The shoulder is bent with the upper groove-shaped horizontal rib as the axis, the bottom wall edge of the deformed bottom is locked to the upper groove-shaped horizontal rib, and the deformed bottom is sandwiched between the curved surface of the upper end of the trunk and the lower part of the shoulder The folded state can be maintained, and since it is not easily restored unless an external force is applied, it can be discarded as it is as a disposal bottle.
[Brief description of the drawings]
FIG. 1 is a front view of a bottle according to a first embodiment of the present invention.
FIG. 2 is a plan view of the bottle.
FIG. 3 is a cross-sectional plan view taken along line AA in FIG.
FIG. 4 is a front view of a flattened bottle.
FIG. 5 is a top view of a flattened bottle.
FIG. 6 is a bottom view of a flattened bottle.
FIG. 7 is a left side view of the flattened bottle.
FIG. 8 is a left side view of a bottle in which a lower trunk portion of a deformed bottom portion is bent.
FIG. 9 is a left side view of a bottle in which a deformed shoulder and a deformed bottom are bent.
FIG. 10 is a left side view of the waste bottle in a folded state.
FIG. 11 is a front view of a bottle according to a second embodiment.
[Explanation of symbols]
1, 30 Mouth tube portion 2, 31 Shoulder peripheral wall 2A Deformed shoulder portion 3, 32 Trunk peripheral wall 3A Flat barrel portion 4, 33 Bottom wall 4A Deformed bottom portion 9, 36 Shoulder lateral ribs 10a, b, 37a, b Inclined rib 11, 38 Upper groove-shaped lateral ribs 12, 39 Upper trunk portion 13, 40 Lower trunk portion 14, 42 Lower groove-shaped lateral rib 15 Vertical ribs 16, 41 Body lateral rib 18 Reinforcement rib 18a Upper rib 18b Lower ribs 19a, b, 45a , B Inclined rib 43 Corrugated rib 44 Horizontal rib

Claims (3)

A square plastic bottle comprising a mouth tube portion, a shoulder wall made up of a pyramid portion and a square tube portion, a tube tube wall made up of an upper body and a lower body, and a bottom wall,
On each wall surface of the shoulder peripheral wall, a shoulder lateral rib is disposed in the pyramid portion, and two inclined ribs are disposed in a V shape below the shoulder lateral rib,
Each wall surface of the body peripheral wall is provided with a vertical rib in the center of the upper body part, a horizontal rib is provided at a predetermined position, and the lower body part has two inclined ribs in an inverted V shape. Are arranged in the
A crushable rectangular plastic bottle , characterized in that groove-like lateral ribs are disposed at respective connection portions between the shoulder peripheral wall and the upper trunk portion and between the upper trunk portion and the lower trunk portion . A square plastic bottle comprising a mouth tube, a shoulder wall made of a pyramid and a tube, a square tube wall made of an upper body and a lower body, and a bottom wall,
On each wall surface of the shoulder peripheral wall, a shoulder lateral rib is disposed in the pyramid portion, and two inclined ribs are disposed in a V shape below the shoulder lateral rib,
On each wall surface of the trunk peripheral wall, a trunk lateral rib is disposed at a predetermined position of the upper trunk, and upper and lower lateral ribs disposed on the left and right above and below the trunk lateral rib and a central side end thereof. A plurality of corrugated ribs composed of continuous inclined ribs are disposed, and two inclined ribs are disposed in an inverted V shape on the lower body portion,
A crushable rectangular plastic bottle, characterized in that groove-like lateral ribs are arranged at respective connection portions between the shoulder peripheral wall and the upper trunk portion, and between the upper trunk portion and the lower trunk portion.   The lower end of the inclined rib of the shoulder peripheral wall, the central portion of the groove-shaped horizontal rib, the upper end portion of the inclined rib of the lower trunk, and the central portion of the groove-shaped horizontal rib are provided with a constant interval between the ribs. The square plastic bottle that can be crushed according to claim 1 or 2.

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