Abstract: Provided is a delamination container that can suppress deformation of container, when a cap is attached thereto, without being provided with a support ring. The delamination container has a container body with an accommodation section for accommodating contents therein and an opening for discharging the contents from the accommodation section. The accommodation section and the opening have an inner layer, which contracts as the contents decrease, and an outer layer. The opening has an engagement section with a cap, which is to be attached to the opening, and a constriction section that constricts toward the inner side of the opening. The opening has an upright wall extending from an outer edge of an upper wall of the constriction section at an angle between 34 degrees and 135 degrees relative to the upper wall. There is an inner layer gap between the upright wall and the upper wall.

Abstract: A collapsible bottle with a channelway provided in a side wall which, in collapsed conditions of the bottle, the channelway becomes engaged with opposed portions of the side wall and define a flow passageway therethrough toward a discharge opening at one end of the bottle and a closed other end of the bottle.

Abstract: There is provided a container (1) for medical use forming a closed compartment (17) for carrying a liquid. The container (1) comprises a flexible side wall (5), a rigid top portion (4) and a rigid bottom portion (3). In the top portion (4) there is at least one through-hole. The side wall (5), the top (4) and bottom (3) portions together form a compartment (17). Inside the compartment (17), a flexible tube (5) is arranged with one end (21) in fluid communication with a though-hole (12) in the top portion (4). A second end (19) of the tube is connected to the bottom portion (3) via a snap-in connection (18). Liquid from the inside of the container (1) may be withdrawn by pressurizing the compartment (17) in which liquid is stored, when in use. The container (1) is reversible folded and unfolded for convenient filling and storing of the container (1). The container (1) is adapted for use in an irrigation system, and preferably a system for rectal irrigation.

Abstract: A carbonated beverage container includes a bottle having a flexible sidewall of generally circular cross section, a cap for closing a top opening of the bottle, pairs of coupling elements provided on diametrically opposite portions of the sidewall respectively and configured to be pushed towards each other and couple together, thereby partially collapsing the bottle and expelling a predetermined amount of air therefrom. A method of preserving the taste of carbonated beverage in a container is also disclosed.

Abstract: A container collapsible during dispensing of the contents therein includes a front wall, a rear wall, right and left side walls, a bottom wall, and a top wall defining a container volume holding product. A first right side wall fold line is provided in the right side wall, and a first left side wall fold line is provided in the left side wall. A rear wall fold line separates the rear wall into a first facet and a second facet. The container is sealed such that the removal of the product from the container causes the container volume to decrease, and the container folds along the first right side wall fold line, first left side wall fold line and rear wall fold line such that the first facet folds down toward the second facet.

Abstract: A collapsible drinking cup assembly having a plurality of annular ring segments each flexibly coupled together, end-to-end. An upper drinking lip segment of the ring segments includes an interior and exterior sidewall such that the drinking lip segment tapers inwardly from a lower base portion to an annular upper distal edge thereof. A support floor of the cup apparatus includes an annular bottom flange extending radially beyond an exterior wall of the bottom ring segment. Atop lid member extends over an opening into the cup apparatus, and includes a pair of opposed, inner and outer contact walls that collectively define an annular receiving groove therebetween. The cup apparatus can be expanded from a collapsed position to an expanded position when both the annular bottom flange and the lid member are radially gripped and axially pulled apart longitudinally thereof before separation of the lid member from the drinking lip segment.

Abstract: A compressible container (200) has a cap (100) configured to engage therewith. The cap (100) includes a first valve (150), preferably in the form of first and second disks (112,120), one above another, each disk having at least one hole (113,122) therethrough. The disks are rotatable with respect to one another The holes (113,122) of the first and second disks (112,120) align in a first position to create channel therethrough and misalign in the second position to close the channel. The cap (100) may also include a second valve (130) connected to the channel. The second valve (130) may comprise a ball (134) inside a conic section tube (132). The ball (134) is designed to float on the liquid (300) so that any liquid (300) attempting to exit the container cap (100) will be prevented from doing so as the second valve (130) will be closed when the liquid forces the ball (134) into engagement with the conic section tube (132).

Abstract: A container body (11) is provided with a squeeze operating portion (13a) between a shoulder portion (15) and a bottom portion (14), the squeeze operating portion including a squeeze face portion (16) opposed to a squeeze direction X, a pair of lateral support wall portions (17) arranged along the squeeze direction X at both side sections of the squeeze face portion (16), and inclined linking face portions (18) arranged as being inclined therebetween. When the squeeze face portion (16) is compressed to the squeeze direction x, the inclined linking face portions (18) expand distance between the pair of lateral support wall portions (17) at both sides as deforming along the squeeze face portion (16) from an inclined state against the squeeze face portion (16). The inclined linking face portions (18) are restricted so as not to be flipped in the squeeze direction (x) side after deformation completes as expansion force vanishes, so that constant quantity of content liquid is discharged.

Abstract: A corporeal drainage system and a method of draining fluid from a bodily cavity. The corporeal drainage system includes a connection tube and a fluid receptacle in fluid communication with the connection tube. The fluid receptacle creates a negative pressure in the system by transitioning from a collapsed configuration to an expanded configuration. The system may include an activation member to initiate transitioning of the fluid receptacle.

Abstract: A fluid container (10) comprises a body (12), a neck (16), and a mouth (14) The neck is deformable from a first stable condition to a second stable condition, allowing the relative angle of the mouth to be changed.

Abstract: A container made of silicone resin is sufficiently compactable in a collapsed state. The container includes a tubular barrel portion, a bottom portion having a flat surface, a mouth portion having an opening, and a lid portion sealing the opening of the mouth portion, with at least the barrel portion and the bottom portion formed by molding. One end of a binder is attached to the mouth portion and can hold the rolled-up barrel portion and the bottom portion.

Abstract: A segmented collapsible container for containing a liquid and collapsing when no liquid is present. The container is segmented into a first portion, a second portion, and a third portion. The three segmented portions form a uniform annular sidewall, with each separate portion of the sidewall having a different thickness or material than the other portions. The middle second portion includes a relatively thinner break point in the sidewall to facilitate collapsing. It is this variation in rigidity and integrity of the sidewalls that allows the segmented collapsible container to collapse. The segmented collapsible container includes an airtight seal formed in the first portion that restricts fluids, such as but not limited to, air from entering or leaving the segmented collapsible container. The segmented collapsible container may more easily return to its original shape after collapsing. This facilitates cleaning and reusability of the container.

Abstract: A collapsible container and a method of using the collapsible container are provided. In one embodiment of the container, the container comprises a collapsible fold area associating a base portion with a nestable portion, the collapsible fold area being structured such that a collapsing of collapsible fold area results in disposal of at least a portion of the nestable portion within the base volume. In one embodiment of the method, the method comprises the steps of nestling the collapsed containers with one another for efficient space storage when said collapsed containers are not in use, and releasing a vacuum or applying a force to return a collapsed container to its full or expanded position.

Abstract: The purpose of the invention is to remove the excess air in an opened, partially used bottle containing effervescent beverages. Further use of the invention can be employed when viscous substances are contained. This is achieved by rotating a base of a bottle that is connected to a tab at the bottom of an inner bladder liner that is contained inside a bottle. The invention shows a bottle system for dispensing and maintaining effervescent beverages fresher for a longer period of time after a bottle has been opened. The bottle also improves the dispensing of thick substances found in many products that have viscous properties. The system offers a more efficient, easy solution for the dispensing of such substances from their containers by employing a collapsible inner bladder liner contained inside a bottle.

Abstract: A carbonated beverage container includes a bottle having a flexible sidewall of generally circular cross section, a cap for closing a top opening of the bottle, pairs of coupling elements provided on diametrically opposite portions of the sidewall respectively and configured to be pushed towards each other and couple together, thereby partially collapsing the bottle and expelling a predetermined amount of air therefrom. A method of preserving the taste of carbonated beverage in a container is also disclosed.

Abstract: Disclosed herein is a plastic bottle suitable for vending from vending machines and for storing food or beverage products having comparatively high viscosities. A bottle is provided with a mouth, a flexible main unit having a tubular body section in fluid communication with the mouth, a base forming a bottom of the main unit and configured to support the bottle to stand upright, and a rigid portion located above the main unit and having greater traverse strength than said main unit. The mouth, main unit, and base define a retention space with a central axis. The rigid portion includes regions facing each other across from the central axis at the most distant position from the central axis. Moreover, the tubular body section of the main unit deforms into a substantially flat shape when an external force is applied in a transverse direction without the rigid portion undergoing plastic deformation.

Abstract: A blow-molded plastic container comprising a base portion having a flexible standing ring radially extending therefrom. The flexible standing ring is disposed about a lowest most portion of the container and operable to support the container on a surface. The flexible standing ring defines an annular groove thereabout that collapses in response to internal vacuum forces and/or external loading forces. The container further comprises a body portion that extends from an upper portion to the base, such that the upper portion, the body portion and the base cooperate to define a receptacle chamber within the container into which product can be filled.

Abstract: A plastic bottle is provided with a mouth, a main unit, for example, a flexible, cylindrical main unit, connecting the interior of the bottle with the mouth, a base structured to close the bottom portion of the main unit and have a greater rigidity compared to the main unit. The main unit includes a lower body section extending upward from the base, a central body section extending upward from the lower body section, and a crease between the lower and central body sections. The central body section can be configured to deform into a substantially flat shape through the action of external force F so as to bend outward.

Abstract: A semi-rigid collapsible container (10) has a side-wall with an upper portion (5), a central portion (6), a lower portion (7) and a base (8). The central portion (6) includes a vacuum panel portion having a control portion (2) and an initiator portion 1. The control portion (2) is inclined more steeply in a vertical direction, i.e. has a more acute angle relative to the longitudinal axis of the container (10), than the initiator portion 1. On low vacuum force being present within the container panel following the cooling of a hot liquid in the container 10 the initiator portion (1) will flex inwardly to cause the control portion (2) to invert and flex further inwardly into the container (10) and the central portion (6) to collapse. In the collapsed state upper and lower portions of the central portion (6) may be in substantial contact so as to contain the top-loading capacity of the container (10). Raised ribs (3) made an additional support for the container in its collapsed state.

Abstract: A container exhibiting superior resistance to unwanted or uncontrolled sidewall deformation has plurality of vacuum responsive panels, generally uniformly spaced around the sidewall periphery, including a panel surface portion radially inset from the sidewall. A post or land is provided between each nearest neighbor pair of vacuum panels, the posts having upper and lower ends joined together upper and lower sidewall edge portions. A margin is located at least at the upper and lower edges of each vacuum panel and extending between the panel surface and the sidewall. At least one of the upper and lower margins of each vacuum responsive panel includes an axially offset portion, which in response to decreasing pressure focuses any initial deflection of the panel surface to that portion of the panel contiguous to the axial offset portion.

Abstract: A plastic bottle that can easily be collapsed after used is provided. The plastic bottle has a body portion that is depressed internally by applying external force, and a depressible portion formed on a circumferential wall of the body portion to protrude externally. The depressible portion is depressed internally by applying external force. Plural depressible portions and plural depression-resistant portions may be formed alternately on the circumferential wall of the body portion in the circumferential direction of the body portion.

Abstract: A container using a flexible membrane integrated into the throat or egress passageway of a bottle. The membrane forms a portion of the passageway's sidewall. The membrane flexes inward when an external force is applied causing the inner walls of the passageway to frictionally mate together and restrict the flow of a fluid or non-fluid through the passageway and flexes outward when the force is removed allowing the inner walls of the passageway to move away from one another and allow the flow of the fluid through the passageway.

Abstract: The bottle has accordion-like collapsible bellows ridges (1) with upper and lower arched shape surfaces (1?,1?), always only one of the surfaces (1?,1?) is provided with a system of ridge embossed or stamped stiffenings (2) without horizontal continuity. System of vertical stamped stiffenings (3) is present as well, creating recesses (4) of the bellows ridges (1) with angle greater than 90°, having arched shape haunches (5) at the top and bottom. Stacking depression (6) is created in the bottom of the bottle, the bottle is preferably provided with removable label leaving no residue and it has completely detachable cap (7).

Abstract: A molded polymeric container generally symmetric about a vertical axis includes at least two rows of panels disposed circumferentially around the body, the panels having central portions that are sufficiently flexible to be dimensionally responsive to changes in pressure within the container. At least one row of the panels has a margin having a horizontal width exceeding the vertical height, thus being laterally elongate with a height/width aspect ratio of less than one. The pressure responsive central portion of each laterally elongate panel is a smooth outwardly projecting dome from a peripheral root of a generally radially projecting wall defining the margins of circumferential rings and posts separating the panels. Panels in another row can have an ovate step connecting the perimeter of the panel to the central portion of the panel. Outward protrusions can be provided within the central portion to provide support for a surrounding label.

Abstract: A semi-rigid collapsible container has a side-wall with an upper portion, a central portion, a lower portion and a base. The central portion includes a vacuum panel portion having a control portion and an initiator portion. The control portion is inclined more steeply in a vertical direction, i.e. has a more acute angle relative to the longitudinal axis of the container, than the initiator portion. On low vacuum force being present within the container panel following the cooling of a hot liquid in the container, the initiator portion will flex inwardly to cause the control portion to invert and flex further inwardly into the container and the central portion to collapse. In the collapsed state upper and lower portions of the central portion may be in substantial contact so as to contain the top-loading capacity of the container. Raised ribs made an additional support for the container in its collapsed state.

Abstract: At least one collapsible tube for containing at least one product, comprising: external flexible thread form on flexible throat coupled to flexible shoulder. The flexible throat and flexible shoulder flatten to dispense essentially all the contained product. The flexible shoulder may include a raised detent for stopping a cap and/or raised flexible ribs to control the direction of flattening the flexible shoulder. At least one cap for the collapsible tube including an interior bulge or an interior rim, both for urging an included interior thread form to engage with an external flexible thread form included in the flexible throat, and further including a lower surface to engage with the raised detent, and/or internal ribs and/or internal posts to engage with the raised flexible ribs. Manufacturing methods for the collapsible tubes and caps, and these items as products of the manufacturing processes.

Abstract: An endoscope cleaning and disinfecting apparatus of the present invention includes: a bottle body, including, a rigid portion with a mouth portion, and a deformable portion which is in a first shape while the disinfectant being stored therein and is deformable from the first shape to a second shape upon being compressed when the disinfectant is discharged therefrom; and a disinfectant tray having a housing section which can be pulled out of the apparatus body and into which the bottle body is housed, the disinfectant tray being provided with a housing space for a first slide member which allows the housing section to slide relative to the apparatus body and a housing space for a second slide member which is slidable relative to the first slide member.

Abstract: An extendable container including a container body and a sheet, the container body having a bottom part, a bellows barrel part extendable in a height direction, and a top part having an openable cover, the sheet being wrapped around the outer circumference of the container body to secure the container body, wherein the bellows barrel part includes ring portions, each having a predetermined width and trough portions, the ring portions including projections arranged thereon, and wherein the sheet includes locking holes at positions in alignment with the projections of the ring portion such that the locking holes receive the respective projections when the sheet is wrapped around the bellows barrel part.

Abstract: A collapsible ball game practice device is comprised of a plurality of sections, each section above a lower section being substantially collapsible into the lower section. Detent structure is provided on an upper portion of each lower section and a lower portion of each upper section to secure each upper section when raised to its raised condition. A mounting structure is provided on the bottom of the lowermost section for releasably securing the device to a basketball playing surface. Arms may be rotated to various positions. The arms may be collapsed and slid on a carrier into the uppermost section. A head structure may also be slid into the uppermost section. The sections may be collapsed such that all of them may be collapsed into the lowest section. A handle is provided in the top of the head structure for carrying the entire assembly. The collapsed device may be easily transported and/or stored. The device is particularly useful as a defensive dummy in practicing the games of basketball and volleyball.

Abstract: A collapsible insert having one or more chambers and at least one weakened area is disclosed. Edible ingredients are placed in the chambers, and the edible ingredients are released through the weakened area when the collapsible insert collapses. A bottle having a removable cap that can hold the collapsible insert also can be provided. The collapsible insert collapses when the removable cap is placed on the bottle so that the edible substance is released through the weakened area into the bottle. The collapsible member can also have an extending tube that fits into a neck of the bottle, exposing the collapsible insert. When the cap is placed on the bottle, it collapses the collapsible insert to release the ingredients into the bottle.

Abstract: A novelty item has a base and a display extending upwardly from the base. The display comprises at least a first segment and at least a second segment each having an outer cylindrical wall and an inner cylindrical wall, the inner and outer walls separated from one another thereby defining a first interior space, and the inner cylindrical wall defining a second interior space. A divider is located between the first and second segments, the divider supporting the second segment over the first segment in generally vertical alignment, the display having a generally open top leading to an interior of the display defined by the second interior space of said first and second segment. The novelty item may have the appearance of a gaming machine “top” light and may be also be configured for utilitarian use, such as a writing utensil holder or mug.

Abstract: A squeezable plastic bottle with a handle which is bendable by forming a bending deformation portion in the handle. The bending deformation portion of the handle can be a bending portion formed in the middle portion of the longitudinal direction of the handle. Further a bending rib can be formed between the handle and the body wall surface. The body may be squeezable and deformable by forming a bending rib in the bottle body.

Abstract: A plastic container is provided. The plastic container has a substantially cylindrical sidewall, a base attached to a lower portion of the sidewall, a finish attached to an upper portion of the sidewall, and a vacuum panel located in the sidewall. The container also has a raised island protruding from the vacuum panel and surrounded by the vacuum panel, cross sectional areas of the island being defined as areas in horizontal planes of the container. The island has an upper portion, a middle portion adjacent to the upper portion, and a lower portion adjacent to the middle portion. A cross sectional area of the middle portion is less than a cross sectional area of the upper portion and less than a cross sectional area of the lower portion.

Abstract: A bottle-shaped synthetic resin container (1) includes a body portion (3), and a circumferential groove (10) extending along an outer surface of the body portion (3). The circumferential groove (10) is defined by a groove bottom wall (11) and groove side walls (12a, 12b) extending from the groove bottom (11) to the outer surface of the body portion (3). At least one of the groove side walls (12a, 12b) extends substantially linearly, as seen in a longitudinal-sectional plane including a center axis (A) of the body portion (3), and forms an angle (?, ?) of not more than 20° relative to a reference line (L) perpendicular to the center axis (A) of the body portion (3) in the longitudinal-sectional plane of the container (1).

Abstract: A roller bottle is provided with a bottom wall, a top wall and a cylindrical side wall extending between the bottom and top walls. The top wall includes an opening to provide access to the interior of the roller bottle. The cylindrical side wall of the roller bottle is formed with at least one spiral pleat extending substantially from the bottom to the top for increasing cell growth surface area and for facilitating the flow of liquid to all interior surface areas of the bottle as the bottle is rolled about its longitudinal axis.

Abstract: A molded polymeric container generally symmetric about a vertical axis includes at least two rows of panels disposed circumferentially around the body, the panels having central portions that are sufficiently flexible to be dimensionally responsive to changes in pressure within the container. At least one row of the panels has a margin having a horizontal width exceeding the vertical height, thus being laterally elongate with a height/width aspect ratio of less than one. The pressure responsive central portion of each laterally elongate panel is a smooth outwardly projecting dome from a peripheral root of a generally radially projecting wall defining the margins of circumferential rings and posts separating the panels. The outwardly projection domes of the laterally elongate panels can have a variety of shapes.

Abstract: To extremely reduce the capacity of a container body when juice or mineral water in a container body is drunk up and the container body is discarded. The container body includes: a top tap; a small width in a height direction at a bottom; and a horizontal bellows formed on the whole or part in a longitudinal direction of the container body, except the top tap, and the width in the height direction.

Abstract: A semi-rigid collapsible container (10) has a side-wall with an upper portion (5), a central portion (6), a lower portion (7) and a base (8). The central protion (6) includes a vacuum panel portion having a control portion (2) and an initiator portion (1). The control portion (2) is inclined more steeply in a vertical direction, i.e. has a more acute angle relative to the longitudinal axis of the container (10), than the initiator portion (1). On low vacuum force being present within the container panel following the cooling of a hot liquid in the container (10), the initiator portion (1) will flex inwardly to cause the control protion (2) to invert and flex further inwardly into the container (10) and the central portion (6) to collapse. In the collapsed state upper and lower portions of the central portion (6) may be in substantial contact so as to contain the top-loading capacity of the container (10). Raised ribs (3) made an aditional support for the container in its collapsed state.

Abstract: A container includes an enclosed base portion. A body portion extends upwardly from the base portion. The body portion includes a central longitudinal axis and at least six deflectable panels. The deflectable panels have side edges extending in the direction of the longitudinal axis. A top portion with a finish extending upwardly from the body portion is provided. A first indentation is disposed between the body portion and the top portion and extends for 360 degrees around the container. The first indentation is offset towards the central longitudinal axis with respect to the deflectable panels. A second indentation is disposed between the body portion and the base portion and extends for 360 degrees around the container. The indentations are offset towards the central longitudinal axis with respect to the deflectable panels.

Abstract: A collapsible, semi-rigid container includes neck and bottom wall portions and a peripheral side wall extending between the neck and bottom wall. The side wall includes a rigid upper portion and a flexible lower portion. The lower portion of the side wall collapses into the upper portion reducing the internal volume of the container.

Abstract: A blow-molded synthetic resin bottle that can be fully flattened and easily restored to an original shape. The bottle includes at least a line of turn is formed on the shoulder, the body, and the bottom along the entire vertical circumference. Among the sections divided by this line of turn, at least a section is used as a shell section in which at least a nearly entire body portion of this section has relatively high rigidity. The other section is a reversible section in which at least a nearly entire body portion has relatively low rigidity and is capable of being deformed by resilient reversion. The neck is disposed on the shoulder, and the reversible section can be deformed and easily concaved into the shell section for volume reduction and then can be restored to the original shape.

Abstract: A container (1) with a flexible neck (2) that permits the neck (2) to be moved into any position while continuing to spray liquid (12) from the container (1). The container (1) can be used with any conventional spray nozzle attachment (3) having an attachment ring (4), tubing (11), a trigger (6) and a nozzle (7).

Abstract: A collapsible, semi-rigid container includes neck and bottom wall portions and a peripheral side wall extending between the neck and bottom wall. The side wall includes a rigid upper portion and a flexible lower portion. The lower portion of the side wall collapses into the upper portion reducing the internal volume of the container.

Abstract: A bottle with a flexible neck containing less than a gallon of sprayable liquid which in its sold position has its center line or axis vertical. The flexible neck permits the bottle to be moved into any position and continue to spray liquid from the bottle.

Abstract: The invention is a container with a sealing lid and a compression nut and is composed of compressible cylindrical walls. The container volume can be adjusted to equal the volume of content minimizing content contact with air. The container can be further pressurized for preservation of contents that need pressurization. The container walls are created in the form of helical collapsible screw thread bellows. The integration of a compression nut, a screw and a collapsible bellow arrangement enables the container to be compressed precisely, effortlessly, easily while retaining structural rigidity, stability and providing a non-slip gripping surface. By adjusting the pitch of the screw threads a variety of mechanical advantage ratios can be achieved thus the effort for compressing the container can be optimized. The compression nut is detachable and transferable from one container to another enabling it's cost to be shared between multiple containers.

Abstract: Disclosed herein is a container (1), which is easily contracted and elastically expanded to restore its original shape by a coil spring (7). This container (1) includes a flexible body (3) and a capacity control ring (5). The body (3) has a cylindrical interior for containing something. The capacity control ring (5) is spirally formed around the outer surface of the sidewall of the body (3), and allows the body (3) to be contracted and elastically expanded in a vertical direction, thus controlling the capacity of the body (3).

Abstract: A container body of which length in the longitudinal direction or a part thereof is formed into horizontal accordion shape except the tap portion, wherein a force in one direction acts on a piece of folds constituting the accordion shape and/or a part of inner periphery, while a force in the opposite direction acts on the outer periphery thereof, when a force from a substantially right-angle direction thereof is applied to the accordion-shaped portion of said container body, thereby a compressed state in a longitudinal direction is maintained.

Abstract: A synthetic resin liquid container for containing drinking water, juice, milk and other liquids is provided. The synthetic resin liquid container has a body that can substantially reduce its volume when a vertical and/or twisting stress is applied to the body, and a form-retaining means to be used after compression of the container body for keeping it compressed.

Abstract: A disposable bottle (1) having a gradually collapsible structure, of the type in which the sidewalls (2) of the bottle have an accordion-like structure comprising several adjacent folds. Each fold is formed by two opposed surfaces (7, 8) of different width, comprising blocking means to prevent the recovery of the fold, under a predetermined force, once the same fold has collapsed for the first time.

Abstract: A container body of which length in the longitudinal direction or a part thereof is formed into horizontal accordion shape except the tap portion, wherein a force in one direction acts on a piece of folds constituting the accordion shape and/or a part of inner periphery, while a force in the opposite direction acts on the outer periphery thereof, when a force from a substantially right-angle direction thereof is applied to the accordion-shaped portion of said container body, thereby a compressed state in a longitudinal direction is maintained.