JPH11268741A - Container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the state of contraction maintained for a container even though an external force is applied by a method wherein an engagement means that engages a bellowslike expandable/contractile means provided at the trunk part of the container as contraction of the means progresses and maintains the state of contraction for the expandable/contractile means is provided. SOLUTION: A container for housing refreshing drink or the like is made up of a container main body 1A and a cap 1B, and the container main body 1A is formed of a container mouth part 2, a trunk part 3 and a bottom part 4 and an expandable/ contractile means 5 comprising a bellowslike circumferential wall 3A is formed at the trunk part 3. A part for engagement 8 whereto an engaging part 7 provided at the cap 1B with its tip formed in a spherical shape is engaged is provided at the bottom part 4 of such container 1. The part for engagement 8 is constructed of a plurality of pieces for engagements 8a projecting from the bottom part 4 toward the inside of the container. An indent 9 for allowing the engaging part 7 to be fitted therein is formed at the middle of the part for engagement 8, and furthermore the front end part of each of the pieces for engagement 8a is formed in bending and spreading as it approaches the front so that the engaging part 7 can be easily fitted from above.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container capable of saving space during transportation and disposal by making the container itself compact when no contents are contained therein. The present invention relates to a container having a body with a telescopic means.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 17, this type of container is made of a thin material made of synthetic resin, and the bellows peripheral wall 3A formed on the body 3 constitutes the expansion / contraction means 5. A plurality of rigid ring wires 20 are embedded in the bellows peripheral wall 3A at intervals in the expansion and contraction direction,
When a force equal to or more than a predetermined value in the contraction direction is applied to the container, the folds 6 of the bellows peripheral wall 3A are urged in the overlapping direction by the elastic restoring force of the bellows peripheral wall 3A, and are switched to the contracted state, and the container is extended in the extension direction. When a force equal to or more than the predetermined value is applied, each fold 6 of the bellows peripheral wall 3A is similarly urged in a direction away from the elastic restoring force to switch to an extended state (see Japanese Patent Application Laid-Open No. Hei 6 -345095). Then, before putting the contents or after the contents become empty, as shown in FIG.
Is folded in a state of being overlapped to reduce the space as a contracted state, while in the state where the contents are contained,
As shown in FIG. 17 (b), the bellows peripheral wall 3A is extended so that it can be used according to the amount of the contents. The expansion and contraction operation of the bellows peripheral wall portion 3A includes:
It can be easily implemented with a small force by holding an arbitrary position of the container by hand.

[0003]

According to the above-mentioned conventional container, the expansion and contraction state is maintained only by the elastic restoring force of the bellows peripheral wall portion. Since a large operating force is not required, there is a risk that the expansion and contraction state is easily changed when an external force acts on the container. Also, between the folds,
For example, if residual scum or foreign matter of the contents is interposed, the folds may not be easily overlapped with each other, and the elastic restoring force in the contraction direction may not be easily applied, and there is a risk that the contraction may not be performed to a minimum state. As a result, there is a problem in that it is difficult to completely maintain the contracted state, which makes it difficult to save space during transportation or disposal.

Accordingly, an object of the present invention is to solve the above-mentioned problems and to provide a container which can easily maintain a contracted state even when an external force acts.

[0005]

Means for Solving the Problems [Structure] The characteristic structure of the invention according to claim 1 is as shown in FIGS. 1, 2, 4, 5, 6, 7, 8, 10, and 10.
As illustrated in FIGS. 12 and 13, in a container provided with the elastic means 5 on the body 3, an engaging means K which engages with the contraction of the elastic means 5 to maintain the contracted state of the elastic means 5. Is provided.

[0006] The characteristic structure of the invention of claim 2 is shown in Figs.
· As exemplified in 11 ・ 15 ・ 16, the engagement means K
Is constituted by an engaging portion 7 and an engaged portion 8 formed separately on the container mouth 2 and the container bottom 4.

[0007] The characteristic structure of the invention of claim 3 is shown in Figs.
As illustrated in FIG. 4, the engaging means K is composed of an engaging portion 7 and an engaged portion 8 which are separately formed on the cap 1B which covers the container opening 2 and the container bottom portion 4, respectively. is there.

As shown in FIG. 6, the engaging means K comprises an engaging portion 7 and an engaged portion 8 which are separately formed on the upper and lower portions of the body 3, respectively. And that it is configured with.

As shown in FIGS. 7 and 8, the characteristic structure of the invention according to claim 5 is that the expansion / contraction means 5 is a bellows peripheral wall 3A formed on the body 3, and the engagement means K is a bellows. An engaging portion 7 and a to-be-engaged portion 8 are separately formed on a peripheral wall portion overlapping when the peripheral wall portion 3A contracts.

The characteristic structure of the invention of claim 6 is shown in FIGS.
As shown in FIG. 2, the container opening 2 is formed so as to be able to be depressed toward the inner space of the container.

The feature of the invention of claim 7 is shown in FIGS.
As exemplified in 4-6.10-12.15.16, the direction of expansion and contraction of the expansion and contraction means 5 is set at the height direction of the container.

A feature of the invention according to claim 8 is that, as illustrated in FIG. 13, the expansion and contraction direction of the expansion and contraction means 5 is set in the container radial direction.

As shown in FIG. 3, the expansion and contraction means 5 is formed so as to be switchable between an extended state and a contracted state by an elastic restoring force provided on the body part 3. There is a place.

A feature of the tenth aspect of the present invention is that, as shown in FIG.
Is provided with a fitting recess 21 which can be fitted inside.

The characteristic structure of the eleventh invention is shown in FIG.
As illustrated in FIGS. 15 and 16, an extension operation engaged portion 16 that is engaged with an operation member 15 for extending and extending the container body 1 </ b> A along the extension and contraction direction of the extension and contraction means 5 and can be extended.
Are provided separately at both ends of the expansion and contraction means 5 in the expansion and contraction direction.

A feature of the twelfth aspect of the present invention is that, as illustrated in FIG.
“b” is an engagement recessed portion 17 of a deepened shape formed on the lower surface of the container bottom 4.

A feature of the invention according to the thirteenth aspect is that, as shown in FIG.
a is a reinforcing flange portion 18 formed in the container mouth portion 2.

As shown in FIG. 16, the expansion / contraction means 5 is a bellows peripheral wall 3A formed on the body 3, and the extending operation engaged part 1 is a feature of the invention.
Reference numeral 6 denotes a bellows recess 19 at both ends in the direction of expansion and contraction of the bellows peripheral wall 3A.

Note that, as described above, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the accompanying drawings by the entry.

According to the first aspect of the present invention, in the container provided with the expansion and contraction means in the body portion, the container is engaged with the expansion and contraction means so that the expansion and contraction of the expansion and contraction means is reduced. Since the engagement means to maintain the state is provided,
By a simple operation of contracting the expansion and contraction means, the engagement means is engaged so that the expansion and contraction means can be maintained in a contracted state,
It is possible to more reliably reduce the size of the container. As a result, even if an external force acts on the container, it is easy to prevent the contracted state from being inadvertently released, and more efficiently use the limited container housing space when transporting or disposing of the container. Can be transported (or discarded). In addition, especially when disposing of containers,
Recover and handle more containers at once due to volume reduction
To improve the efficiency of disposal as industrial waste.
And, for example, helped recycle resources
And contribute to the preservation of the global environment.
You. As a result, it is possible to provide environmentally friendly containers
Becomes

According to the characteristic configuration of the second aspect of the invention, in addition to achieving the function and effect of the first aspect of the invention, the engaging means is separately formed at the container mouth and the container bottom. Since the engagement portion and the engaged portion are configured, the container opening can be operated by hand to engage the engagement portion and the engaged portion. The joint operation can be performed with better operability. The same can be said, of course, when performing the disengagement operation.

According to the characteristic configuration of the third aspect of the present invention, in addition to the effect of the first aspect of the present invention, the engagement means may further comprise a cap to cover the container mouth, a container bottom, Since it is composed of an engaging portion and an engaged portion which are separately formed, it is only necessary to form the engaged portion (or the engaging portion) in the container, and a container which is easy to perform a complicated molding operation is required. , Can be formed relatively easily. Further, when the cap and the container are formed by different members, the engaging portion and the engaged portion can be formed by different members. It is possible to selectively use a material suitable for the part, and it is also possible to make the engagement operation easier. Furthermore, the engagement operation between the engagement portion and the engaged portion can be performed by holding the cap by hand, and the engagement operation can be performed with higher operability. The same can be said, of course, when performing the disengagement operation.

According to the fourth aspect of the present invention, in addition to the effects of the first aspect of the invention, the engaging means are separately formed on the upper and lower portions of the body. The engagement operation between the engagement portion and the engaged portion is performed stably by holding the upper and lower portions of the body by hand. This makes it possible to perform the engagement operation with better operability. The same can be said, of course, when performing the disengagement operation.

According to the characteristic configuration of the fifth aspect of the present invention, in addition to the effect of the first aspect of the present invention, the expansion and contraction means is a bellows peripheral wall formed on the body, The engaging means includes an engaging portion and an engaged portion which are separately formed on a peripheral wall portion overlapping when the bellows peripheral wall portion is contracted, so that the engaging portion and the engaged portion are folded. And it is hardly noticeable, for example, even if the container is a transparent container, it is possible to configure with good aesthetics.

According to the characteristic structure of the sixth aspect of the invention, in addition to the effects of any one of the first to fifth aspects of the invention, the container opening is directed toward the inner space of the container. Since the container is formed so as to be depressed, the container can be made more compact and the storage efficiency can be improved by depressing the container mouth into the contracted container.

According to the characteristic structure of the seventh aspect of the invention, in addition to the effects of any one of the first to sixth aspects, the expansion and contraction direction of the expansion and contraction means is equal to the height of the container. The height of the container can be changed by the expansion and contraction of the expansion and contraction means, and the internal volume can be changed while the container bottom can be placed on the mounting surface. Becomes Therefore, it is possible to reduce the size of the container by reducing the height of the container.

According to the eighth aspect of the present invention, the function and effect of the first aspect of the present invention can be achieved, and the direction of expansion and contraction of the expansion and contraction means is set in the radial direction of the container. By changing the width and diameter of the container by the expansion and contraction of the expansion and contraction means, the internal volume can be changed. Therefore, if the container is shrunk in the radial direction by the expansion and contraction means, the width of the container itself is reduced, and it becomes possible to make the container thinner, for example, when the amount of contents filled in the container is reduced. Can be transformed into a width dimension that can be carried in a pocket and used as a portable container.

According to the characteristic configuration of the ninth aspect of the present invention, in addition to the effects of any one of the first to eighth aspects, the expansion and contraction means is provided with an elasticity provided on the body. Since it is formed so as to be switchable between the expanded state and the contracted state by the restoring force, it is possible to perform the switching operation to the contracted state by the expansion and contraction means and the engagement operation by the engagement means in parallel, Smooth operability is easily ensured, and the maintenance of the contracted state is performed by the double means, so that the performance of maintaining the container in the contracted state can be more reliably secured.

According to the tenth aspect of the present invention, in addition to the effects of any one of the first to ninth aspects, the container opening of another container is provided at the bottom of the container. Since the fitting recess that can be fitted inside is provided, when a plurality of the containers are stored, the fitting recess of the container superimposed on the container mouth portion of the container located below is arranged so as to fit outside. It is possible to stack so that the space between the two containers is smaller. Therefore, it is possible to further improve the storage efficiency together with the reduction of the volume by contracting the expansion and contraction means.

According to the eleventh aspect of the present invention, in addition to the effect of any one of the first to tenth aspects, the container body can be moved along the direction of expansion and contraction of the expansion and contraction means. The extended operation engaged portions engageable with the operation member for the extension operation are provided separately at both ends in the extension and contraction direction of the extension and contraction means, so that the contracted container is extended. In addition, the container can be easily extended by engaging the operating member with the engaged portion for extension operation. Therefore, by extending a large number of containers, for example, in a production line that fills the contents,
Even if a stretching device having a complicated configuration is not prepared, the operation can be performed with simple equipment having the operation member, and the equipment cost can be reduced. Further, the container can be changed from the contracted state to the extended state by a simple operation of engaging and extending the operating member with the engaged portion for extension operation, so that the efficiency of the container extension operation in the production line can be improved. Can also be improved.

According to the characteristic configuration of the twelfth aspect of the present invention, in addition to the effect of the eleventh aspect of the present invention, the engaged portion for extension operation on the lower side is provided on the bottom of the container. Since the engagement concave portion is formed on the lower surface and has a widened shape, a simple operation of engaging the operating member in the engaged concave portion by simply engaging with the deepened portion of the concave portion is required. In addition to the fact that the engaged concave portion is formed on the lower surface of the container bottom, it is hardly noticeable in appearance, and furthermore, it is formed wide
The opening of the concave portion on the surface can be made smaller, and it is difficult to reduce the aesthetic appearance of the container.

According to the thirteenth aspect of the present invention, in addition to the effect of the eleventh aspect of the present invention, the engaged portion for extension operation on the upper side is provided with the container opening. Since the reinforcing flange portion is formed as described above, the flange portion can also be used as the engaged portion for extension operation while reinforcing the container mouth portion, and a simpler container configuration can be realized. Furthermore, since it is not necessary to specially strengthen the engaged portion for extension operation itself, it is possible to suppress an increase in the cost of the container.

According to the characteristic configuration of the fourteenth aspect of the present invention, in addition to the effect of the eleventh aspect of the present invention, the expansion / contraction means is a bellows peripheral wall formed on the body. Since the engagement portion for extension operation is a bellows concave portion at both ends in the expansion and contraction direction of the bellows peripheral wall portion, the extension operation engagement portion is provided in spite of providing the engagement portion for extension operation on the outer peripheral portion of the container. The engaged portion is less noticeable, and the aesthetic appearance of the container is easily maintained.

[0034]

Embodiments of the present invention will be described below with reference to the drawings. In the drawings, portions denoted by the same reference numerals as those of the conventional example indicate the same or corresponding portions.

In the present embodiment, the container 1 in which soft drinks can be placed will be described as an example of the container of the present invention. The container 1 is, as shown in FIGS.
This is a T bottle, which is composed of a container body 1A and a cap 1B. The two are connected to the container opening 2 of the container body 1A.
It is formed so that sealing can be achieved by screwing. Incidentally, the cap 1B is made of metal (or made of synthetic resin).

The container body 1A comprises a container opening 2, a body 3, and a bottom 4. And the trunk 3
Is formed with an expansion / contraction means 5 composed of a bellows peripheral wall 3A. As shown in FIG. 3, the bellows peripheral wall 3A is dimensioned so that the upper fold 6a of the vertically overlapping folds 6 is longer than the lower fold 6b.
A ring-shaped reinforcing portion 6c is formed at the contact point of 6b to suppress the elongation of the body 3 along the circumferential direction. Therefore,
In a stretched state in which the upper and lower folds 6a and 6b do not overlap, when a force in the contraction direction is applied to the container body 1A, the outer edge of the lower fold 6b is restrained from extending in the circumferential direction by the ring-shaped reinforcing portion 6c. On the other hand, the inner edge portion is elastically deformed by receiving a compressive force in the circumferential direction, swings toward the upper fold 6a side, and has its own elastic restoring force at a state along the radial direction of the container body 1A. Overlaps with the upper fold 6a side,
It is in a contracted state (see FIG. 3B). Further, when a force in the extension direction is applied to the container body 1A, the container body 1A is extended by following the reverse process (see FIG. 3A). With such an unstable switching mechanism, the bellows peripheral wall portion 3A is configured to be freely switchable between a contracted state and an extended state.

The bottom portion 4 has the cap 1B
The engaged portion 8 (to be described later) provided in the above is integrally provided with an engaged portion 8 which can be engaged. As shown in FIGS. 1 and 2, the engaged portion 8 is composed of a plurality of engaged pieces 8a protruding from the bottom 4 toward the inside of the container. As shown in the drawing, the locked piece portion 8a has a concave portion 9 in which the engaging portion 7 is freely engageable.
Each of the locked pieces 8a is erected at a central portion of the bottom at intervals in the circumferential direction, and each recess 9 is formed so as to face inward in the radial direction. It is. The distal end of each locked piece 8a is formed so as to be widened so that the locking portion 7 can easily enter from above.

On the other hand, the cap 1B is provided with the engaging portion 7 which can be engaged with the engaged portion 8 as described above. The engaging portion 7 is configured by providing a protruding portion 7a protruding toward the inside of the container at substantially the center of the cap 1B.
The distal end portion is formed in a spherical shape. The distal end portion enters between the to-be-locked pieces 8a from the widened portion, and the outer peripheral portion of the spherical portion is fitted into each of the concave portions 9 to engage with each other. It is configured to be able to. The engaging portion 7 and the engaged portion 8
Constitutes the engagement means K.

Accordingly, as the container body 1A is contracted in the contracting direction while the cap 1B is put on the container opening 2, the spherical portion of the projecting portion 7a enters each recess 9 of the engaged portion 8. Then, the engaging portion 7 and the engaged portion 8 are engaged with each other, and the contracted state of the container can be maintained. In this state, if the cap 1B is tightened and screwed into the container opening 2, the inner space of the container becomes a sealed state, so that the contracted state of the container can be more reliably maintained ( (See FIG. 2).

Therefore, according to the container described in this embodiment,
If it is in a contracted state,
Because it takes up little space to store
Delivery efficiency can be improved and
Even more containers can be easily transported at once, and transport efficiency
Can be improved. In addition, contents in container
When filling, easily increase by stretching
It is possible to make And especially discard the container
The volume of the container at a time,
Containers can be collected and handled, resulting in industrial waste disposal efficiency
Can be improved, for example, resource recycling
Useful for cruises and contribute to the purification of the global environment
It becomes possible. As a result, we provide environmentally friendly containers.
Can be provided.

[Another Embodiment] Another embodiment will be described below.

<1> The engaging means K is not limited to the cap provided with the engaging portion described in the previous embodiment and the engaged portion provided at the bottom portion. As shown in FIG. The cap may be provided with an engaged portion and the bottom may be provided with an engaging portion. Further, the configurations of the engaging portion and the engaged portion are not limited to the above description, and various known configurations can be employed. <2> Further, the engaging means K is not limited to the cap and the bottom provided in the above-described embodiment. For example, as illustrated in FIG. 5, the container opening 2 and the container bottom 4 are separately provided. It may be formed on the upper part and the lower part of the body part 3 as illustrated in FIG. 6. What is necessary is just to maintain the contracted state of the expansion and contraction means 5, and these are collectively referred to as engagement means. As still another embodiment of the engaging means K, as illustrated in FIG. 7, an engaging part 7 and an engaged part 8 are attached to a pair of upper and lower folds 6 overlapping when the bellows peripheral wall 3A contracts. It may be formed separately from each other. In this case, the engaging portion 7 is constituted by the engaging convex portion 10 (or the engaging concave portion 11) formed on the inner peripheral surface of the lower fold 6b, and the engaged portion 8 is formed by the upper fold 6a. Engagement recess 11 (or engagement projection 10) formed on the inner peripheral surface of
It consists of. As illustrated in FIG. 8, a pair of upper and lower bent tops 12 overlapping when the bellows peripheral wall 3 </ b> A contracts,
The engaging portion 7 and the engaged portion 8 may be formed separately from each other. In this case, it may be formed at the bent top on the outer peripheral side of the container or at the bent top on the inner peripheral side of the container. <3> Further, as illustrated in FIG. 9, the container opening 2 may be formed so as to be able to be depressed toward the inner space of the container.
In this case, the container 1 can be made more compact. Further, as shown in FIG. 10, the engagement means K can be configured to engage in conjunction with the depression operation of the container opening 2. <4> The container is not limited to the PET bottle described in the above embodiment, and may be made of another synthetic resin. Further, the contents are not limited to soft drinks, but may be other drink liquids, powders, or granular materials. Further, the container is not limited to a cylindrical shape. For example, as shown in FIGS. 12 and 13, the container may have a rectangular cylindrical shape. A larger amount of contents can be stored in comparison. Further, the square tube shape may be a square, a rectangle, or a polygon other than a square. As for the application, as shown in FIG. 11, if a nozzle portion 13 which can communicate with the internal space is formed, for example, the fire extinguishing liquid 14 is stored in the internal space, It is possible to effectively use and use the fire extinguishing liquid 14 from the nozzle portion 13 by expanding and contracting the container to use it as a digestive organ. <5> The expansion / contraction means is not limited to the expansion / contraction direction set in the container height direction as described in the previous embodiment. For example, as shown in FIG. It may be set in the radial direction. The container shown in this figure is formed in the shape of a square tube, and has bellows formed on both sides and the upper surface of the body 3 and the container bottom 4, so that the container can be expanded and contracted in the radial direction. Things. The bellows are provided with the engaging portion 7 and the engaged portion 8 shown in FIG. 8 in the form of <2> as an example of the engaging means. According to this container, if the expansion / contraction means is expanded / contracted in accordance with the amount of the contents so that the container becomes thin, for example, a pocket container can be obtained. <6> In addition, as shown in FIG. 14, the container bottom 2 may be provided with a fitting recess 21 into which the container mouth 2 of another container can be fitted. By stacking another container opening 2 inside the fitting concave portion 21 (either tightly fitting or loosely fitting) in the stacking, the container can be stacked in a bulky state and the storage efficiency can be improved. Becomes Therefore, for example, when storing the manufactured container, or when transporting to the content filling site,
As shown in FIG. 14 (a), the storage efficiency can be improved by arranging the container opening portion 2 of the lower container so as to fit inside the fitting concave portion in a state where the container is contracted. Also, when storing or transporting a container filled with contents,
As shown in FIG. 14 (b), with the container extended,
The storage efficiency can be improved by arranging the cap attached to the lower container in the fitting recess so as to fit inside. Therefore, the dimension setting of the fitting recess may be a loose fitting state other than the fitting of the container mouth part in the tight fitting state. <7> In addition to the above-described different embodiments, the container is the same as that shown in FIG.
-As shown in 16, at the upper and lower ends of the container body 1A,
An extended operation engaged portion 16 which can be extended by an operation member 15 for extending the container body 1A to be engaged with the operation member 15 may be separately provided. The operation member 15 referred to here is
An extension operating member of a device that stretches a container into an extended state in a production line. Generally, this elongation operation is often performed continuously in a step before filling the contents into the inner space of the container. As shown in FIG. 15, the engaged portion 16 b for extension operation on the lower side of the container is an engaged concave portion 17 of a deepened shape formed on the lower surface of the container bottom 4. The engaged recess 17 is formed on the back surface of the engaging portion 7 of the engaging means K. In this case, the operating member 15 is formed in a shape that expands in the depth as shown in the figure and is freely operable to expand the diameter. The engaged concave portion 1
7 can be engaged. Note that the engaged concave portion may be formed so as to be used as the fitting concave portion described in the mode <6>. As shown in FIG. 15, the extended operation engaged portion 16a on the upper side of the container includes a reinforcing flange portion 18 integrally formed on the outer peripheral portion of the container opening 2. In this case, the operation member 15 has a hook shape as shown in FIG.
The container can be extended by hooking the lower surface of the reinforcing flange portion 18 and raising the same. The engaged portion 16 for extension operation is not limited to the above-described embodiment, and as shown in FIG. 16, a bellows concave portion 19 at the upper and lower ends of the bellows peripheral wall portion 3 </ b> A formed on the body portion 3. It is also possible to use In this case, the operation member 15
As shown in the figure, a hook-shaped one can be used for any of the upper and lower parts, and the container is engaged by engaging the hook part with the bellows concave part 19 and relatively separating the container vertically. Can be extended. Also, the combination of the upper and lower extending operation engaged portions 16 is not limited to the above-described embodiment, and for example, the combination of the reinforcing flange portion 18 and the bellows concave portion 19 or the bellows concave portion 1
9 may be combined with the engaged concave portion 17, or may be combined with a differently shaped extended engagement member.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of a container.

FIG. 2 is a sectional view showing an embodiment of a container.

FIG. 3 is a sectional view showing the operation of the bellows peripheral wall portion.

FIG. 4 is a sectional view showing a container according to another embodiment.

FIG. 5 is a sectional view showing a container according to another embodiment.

FIG. 6 is a sectional view showing a container according to another embodiment.

FIG. 7 is a cross-sectional view showing an engagement means of a container according to another embodiment.

FIG. 8 is a cross-sectional view showing an engagement means of a container according to another embodiment.

FIG. 9 is a sectional view showing a container mouth of a container according to another embodiment.

FIG. 10 is a sectional view showing a container according to another embodiment.

FIG. 11 is a sectional view showing a container according to another embodiment.

FIG. 12 is a partially cutaway perspective view showing a container according to another embodiment.

FIG. 13 is a partially cutaway perspective view showing a container according to another embodiment.

FIG. 14 is a sectional view showing a container according to another embodiment.

FIG. 15 is a sectional view showing a container according to another embodiment.

FIG. 16 is a sectional view showing a container according to another embodiment.

FIG. 17 is an explanatory view showing a state change of a conventional container.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1A Container main body 1B Cap 2 Container mouth part 3 Body 3A Bellows peripheral wall part 4 Container bottom part 5 Expansion / contraction means 7 Engagement part 8 Engagement part 15 Operation member 16 Extension operation engagement part 16a Upper extension operation engagement part Engaging portion 16b Lower engaging portion for extension operation 17 Engagement concave portion 18 Reinforcement flange portion 19 Bellows concave portion 21 Fitting concave portion K Engaging means

Claims (14)

[Claims] 1. A container having a body with telescopic means,
A container provided with engaging means for engaging the expansion and contraction means as it contracts to maintain the contracted state of the expansion and contraction means. 2. The container according to claim 1, wherein said engaging means comprises an engaging portion and an engaged portion formed separately on a container mouth and a container bottom. 3. The container according to claim 1, wherein the engaging means includes an engaging portion and an engaged portion which are separately formed on a cap which covers the container mouth and a container bottom. . 4. The container according to claim 1, wherein the engaging means includes an engaging portion and an engaged portion formed separately on an upper portion and a lower portion of the body portion. 5. The expansion / contraction means is a bellows peripheral wall formed on the body, and the engagement means is an engagement part and an engaged part separately formed on a peripheral wall part overlapping when the bellows peripheral wall contracts. The container according to claim 1, comprising: 6. The container according to claim 1, wherein the container mouth portion is formed so as to be able to be depressed toward the inner space of the container. 7. The container according to claim 1, wherein the expansion and contraction direction of the expansion and contraction means is set in a container height direction. 8. The container according to claim 1, wherein the expansion and contraction direction of the expansion and contraction means is set in a container radial direction. 9. The container according to claim 1, wherein said expansion / contraction means is formed so as to be freely switchable between an expanded state and a contracted state by an elastic restoring force provided on said body. 10. The container according to claim 1, wherein a bottom of the container is provided with a fitting recess into which a container mouth of another container can be fitted. 11. An extension operation engaged portion which is engaged with an operation member for extending and extending the container body along the direction of expansion and contraction of the expansion and contraction means, and which can be extended in the direction of expansion and contraction of the expansion and contraction means. The container according to any one of claims 1 to 10, which is separately provided at both ends. 12. The extended operation engaged portion on the lower side,
The container according to claim 11, wherein the container is an engaged concave portion having a deepened shape formed on a lower surface of the container bottom. 13. The engaged portion for extension operation on the upper side,
2. A reinforcing flange formed at the container mouth.
2. The container according to 1. 14. The expansion / contraction means is a bellows peripheral wall formed in the body, and the extension engaged portion is a bellows recess at both ends in the expansion / contraction direction of the bellows peripheral wall. 12. The container according to 11.