KR20210099809A - Tumbler - Google Patents

Abstract

The present invention relates to a tumbler. More specifically, a separation space between an outer container and an inner container is formed as a vacuum layer to simplify a structure of the tumbler, and the inner container can be easily replaced and used when necessary. According to the present invention, the tumbler comprises: an outer container where an opening is formed in an upper portion; and an inner container which is inserted to enable a separation space to be provided between the inner container and an inner surface of the outer container. The present invention comprises a valve device for forming vacuum, which is installed in the outer container, is opened when negative pressure for converting the separation space into the vacuum layer is applied, and is sealed when the negative pressure is not applied.

Description

Tumblr {TUMBLER}

The present invention relates to a tumbler, and more particularly, to a tumbler that has a simple and simple structure by forming a space between the outer container and the inner container with a vacuum layer, and can be used by simply replacing the inner container when necessary.

In general, cups used for holding beverages are made of synthetic resin, metal, ceramics, etc., and are relatively heavy and require washing after use as well as poor portability, so disposable cups are widely used as replacements in recent years.

Disposable cups are convenient to use, carry, and handle, but as they are used indiscriminately due to the increase in takeout coffee shops, it causes various social problems such as environmental pollution.

In order to alleviate these problems, the use of tumblers in takeaway coffee shops, homes and offices is increasing.

A tumbler means a large cup, and it is mainly used for storing beverages such as coffee and drinking. It is often used as a container for

However, the tumbler is very important to wash because beverages for drinking are accommodated therein. However, it has a more complicated structure than a general cup and is very inconvenient to wash because it has a separate stopper cover.

And, the tumbler is composed of an outer container disposed outside, an inner container inserted into the inside of the outer container, and a stopper member that closes the upper part, and the inner container is oxidized according to the beverage components accommodated during long-term use, abrasion due to washing, or It needs to be replaced due to damage, etc., but since the inner and outer containers are integrated by welding, etc., they cannot be replaced, so there is a problem that the whole must be discarded.

In addition, the outer container and the inner container have a disadvantage in that the overall thickness of the tumbler is excessively increased because a vacuum layer is respectively formed in order to maintain the thermal insulation performance.

In addition, since the outer container and the inner container each have to form a vacuum layer, the structure is complicated and manufacturing is difficult, and there is a disadvantage in that the cost burden of consumers is increased due to the increase in the manufacturing cost due to the relatively increase in the amount of raw materials required.

Korean Patent Publication No. 10-2019-0063282 "Tumbler" Korean Patent No. 10-2050965 "Tumbler" Korean Patent Publication No. 10-2019-0002991 "Separable vacuum tumbler"

The present invention has been proposed in view of the above, and it is easy to separate the inner container inserted into the outer container, and by forming a vacuum layer between the outer container and the inner container, the structure is simple and the volume and weight can be minimized. The purpose is to provide a tumbler that is designed to be used.

In order to achieve the above object, a tumbler according to the present invention is a tumbler, comprising: an outer container having an opening formed thereon; and an inner container inserted to provide a separation space between the inner surface of the outer container and the inner container, installed in the outer container, opened when negative pressure is applied to convert the separation space into a vacuum layer, and closed when negative pressure is not applied It is characterized in that it comprises a valve device for forming a vacuum configured to be so.

And, the tumbler according to the present invention includes a stopper member installed to seal the upper portion of the inner container; Airtight member installed to maintain the airtightness of the vacuum layer in the upper connection portion of the outer container and the inner container; and binding means formed on the outer container and the inner container for binding and releasing the inner container.

The binding means includes: a first binding protrusion protruding from the inner bottom surface of the outer container and having a male screw formed on an outer circumferential surface; It may be composed of

The first binding protrusion may include a rod insertion hole penetrating through the center and a plurality of vacuum forming holes penetrating around the rod insertion hole.

On the other hand, the valve device for forming a vacuum is a valve body installed in the first binding protrusion to perform a closing operation and an opening operation of the separation space, an elastic member installed in the valve body and providing an elastic force to maintain the closing operation may include.

The valve body may include a rod part inserted into the rod insertion hole, an opening and closing part formed below the rod part to open and close the vacuum forming hole, and an elastic member engaging part connected to the upper side of the rod part.

The elastic member may consist of a compression coil spring inserted into the rod portion and elastically installed under the elastic member engaging portion.

The second binding protrusion protrudes to a dimension higher than the protrusion height of the first binding protrusion so as to secure a rising space for lifting the valve body at the bottom of the inner container and communicates between the rising space and the separation space. A ball may be formed.

In addition, a connection groove may be recessed and formed in a bottom surface of the outer container corresponding to the first binding protrusion so that a negative pressure acting portion for applying a negative pressure to the spaced space is inserted.

In addition, the opening/closing unit may be provided with a vacuum release unit to enable a vacuum release operation while communicating with the vacuum forming hole during rotation.

According to the tumbler according to the present invention, the structure is simple and simple by forming the spaced space between the outer container and the inner container as a vacuum layer by using a valve device for vacuum formation, rather than a structure in which a vacuum layer is formed in the outer container and the inner container, respectively. It is possible to minimize the volume and weight, as well as to significantly reduce the manufacturing cost.

And, according to the tumbler according to the present invention, since it is easy to separate the inner container inserted into the outer container, even if oxidation, abrasion, damage, etc. occur due to long-term use of the inner container, it is easy to replace only the inner container without discarding the entire tumbler. Since it can be reused repeatedly, it has the advantage of reducing the cost burden on consumers and reducing environmental pollution.

1 is a perspective view showing a tumbler according to an embodiment of the present invention;
2 is an exploded perspective view showing a tumbler according to an embodiment of the present invention;
3 is a cross-sectional view showing a tumbler according to an embodiment of the present invention;
4 is an enlarged cross-sectional view showing an enlarged main part of FIG. 3;
5 is a schematic cross-sectional view for explaining the operation of a tumbler according to an embodiment of the present invention;
6 is a view for explaining a modified example of the tumbler according to an embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

On the other hand, in each drawing, a detailed description of the configuration that can be easily recognized by those of ordinary skill in the art from the general technology, and the action and effect thereof will be simplified or omitted. In addition, since the present invention has a characteristic of the tumbler, it will be illustrated and described mainly related parts, and the description of the remaining parts will be simplified or omitted.

Fig. 1 is a perspective view showing a tumbler according to an embodiment of the present invention, Fig. 2 is an exploded perspective view showing a tumbler according to an embodiment of the present invention, and Fig. 3 is a cross-sectional view showing a tumbler according to an embodiment of the present invention, Fig. 4 is an enlarged cross-sectional view showing an enlarged main part of FIG. 3 .

1 to 4, the tumbler according to an embodiment of the present invention has a concise and simplified structure, and is configured so that the inner container can be easily separated as needed. The outer container (1), the inner container (2) , a stopper member 3 and a valve device 4 for forming a vacuum are provided.

The outer container 1 is a cylindrical component that forms the exterior of the tumbler, and there is no particular limitation on the shape as long as the inner container 2 can be accommodated. It has a structure in which an opening is formed in the upper portion of the outer container body 11 having a cylindrical shape.

The inner container (2) is inserted into the outer container (1) and is a cylindrical component in which a beverage is contained in the inner receiving space, and is formed so as to provide a spaced space between the inner surface and the inner container in the state inserted into the outer container (1). has been

And the inner container (2) is formed in a structure in which an opening is provided in the upper portion of the inner container body 21 of the cylindrical shape having a sanggwanghahyeop (上廣下狹) structure.

The stopper member 3 is a component installed to seal the upper portion of the inner container 2, and may be formed in various shapes depending on the upper structure of the inner container, but in this embodiment, the upper opening of the inner container 2 It shows an example formed with a lid of a disk structure that closes the .

The valve device for vacuum formation (4) is a component installed in the outer container (1) to apply a negative pressure for converting the spaced space into a vacuum layer (v), and is opened in the process of applying a negative pressure inside the spaced space and It is composed of a valve that can be opened and closed to be closed when negative pressure is not applied.

And, the tumbler according to an embodiment of the present invention is configured with an airtight member (5) installed to maintain the airtightness of the vacuum layer (v).

The airtight member 5 is installed at the upper connection part of the outer container 1 and the inner container 2, and if it is a member that can maintain airtightness, there are special restrictions such as an O-ring, a retainer, a packing, a gasket, etc. It can be applied without selection.

In addition, the airtight member (5) is formed as an independent member and is interposed, but may be formed integrally with the inner container (2).

On the other hand, the tumbler according to an embodiment of the present invention is configured with a binding means (6) for binding and releasing the inner container (2).

The binding means (6) is a first binding protrusion (61) protruding from the inner bottom surface of the outer container (1) and having an external thread formed on the outer peripheral surface, and a first binding protrusion (61) protruding from the lower part of the inner container (2). It is composed of a second binding protrusion 62 formed with a female screw to be screwed to.

Here, the male screw 612 formed in the first binding protrusion 61 and the female screw 622 formed in the second binding protrusion 62 may be formed to have various shapes and pitch intervals, but the inner container 2 It is preferably configured to be bound when rotating in the forward direction by approximately 90°, and to be released from the binding state when rotating in the reverse direction.

In addition, the first binding protrusion 61 is a rod insertion hole 613 penetrating vertically through the center for installation of a valve body 41 to be described later, and a rod insertion to perform the function of a passage for applying negative pressure to the spaced apart space. A plurality of vacuum forming holes 614 penetrating up and down are formed around the ball 613 .

A plurality of communication holes 624 are formed in the second binding protrusion 62 to communicate with the spaced space along the periphery of the protruding jaw to enable an operation of applying a negative pressure to the spaced space.

In addition, the second binding protrusion 62 is the first binding protrusion 61 to secure the rising space h1 for lifting the valve body 41 at the bottom of the inner container 2 even in a state where it is fastened to the first binding protrusion 61 . It protrudes with a dimension higher than the protrusion height h2 of the protrusion part 61 .

In addition, in the outer container 1, the connection groove 15 is recessed and formed in the bottom surface corresponding to the first binding protrusion 61 so that the negative pressure acting portion 9 for applying the negative pressure to the spaced space is inserted.

On the other hand, the valve device 4 for forming a vacuum includes a valve body 41 that performs a closing operation and an opening operation of the spaced space, and an elastic member installed in the valve body 41 to provide an elastic force to maintain the sealing operation ( 42) is provided.

The valve body 41 has a disk shape formed on the lower side of the rod part 411 to open and close the rod part 411 inserted into the rod insertion hole 613 of the first binding protrusion part 61 and the vacuum forming hole 614 . It is composed of an elastic member engaging portion 413 connected to the upper side of the opening and closing portion 412 and the rod portion 411 of the. In this case, the opening and closing portion 412 is preferably formed of a material having adhesion and airtightness, such as rubber or silicone.

Here, the elastic member locking part 413 is a locking part body 413a formed in a disk shape, and a rod fastening part 413b fastened to the rod part 411 in the center of the locking part body 413a. has been

The elastic member 42 is inserted into the rod portion 411 and is composed of a compression coil spring elastically installed under the elastic member engaging portion 413 .

Hereinafter, the operation of the tumbler according to an embodiment of the present invention will be briefly described.

5 is a schematic cross-sectional view for explaining the operation of the tumbler according to an embodiment of the present invention, and shows the negative pressure acting portion 9 connected to the connection groove portion (15). Here, the negative pressure acting part 9 is a component that is connected to the connection groove 15 to form a space between the outer container 1 and the inner container 2 as a vacuum layer and performs the function of a connector that applies a negative pressure. As such, it is formed to be connected to a vacuum forming device such as an electric or manual vacuum pump through a hose.

Referring briefly to the process of assembling the tumbler and forming the vacuum layer according to the present invention with reference to FIGS. 2 to 4 , first assembling the valve device 4 for vacuum formation in the lower part of the outer container 1, the outer container ( Insert and fix the inner container (2) inside 1), but assemble with the airtight member (5) inserted so that the airtightness of the vacuum layer formed between the outer container (1) and the inner container (2) is maintained .

At this time, in the assembly process of the valve device 4 for vacuum formation, the rod part 411 is inserted into the rod insertion hole 613 of the first binding protrusion part 61 through the connection groove part 15 to form the external container (1). After making it protrude into the inner space, the elastic member 42 is inserted into the rod part 411 . In this state, when the rod fastening portion 413b of the elastic member engaging portion 413 is operated to be fastened to the rod portion 411, the assembly of the vacuum forming valve device 4 is completed.

And, the assembly process of the inner container (2) is inserted into the inner space of the outer container (1), the female screw 622 of the second binding protrusion 62 is fixed to the male screw 612 of the first binding protrusion (61). When the inner container (2) is rotated forward by approximately 90° in this state, it is possible to maintain a stable fixed state by screwing between each other.

When the assembling process as described above is completed, as shown in FIG. 5, when the negative pressure acting part 9 is connected to the connection groove part 15 and a vacuum pump (not shown) is operated, negative pressure is gradually applied to the opening and closing part 412 ) is applied to the suction force and the vacuum forming hole 614 is opened as the elastic member 42 is contracted in succession.

As such, when the vacuum forming hole 614 is opened, a vacuum layer is formed as a negative pressure is applied to the spaced space through a negative pressure action path connected through the rising space h1 and the communication hole 624 as a medium.

As described above, when the vacuum layer forming process is completed, the operation of the vacuum pump is stopped and the negative pressure acting part 9 is separated from the connection groove part 15, the restoring force of the elastic member 42 is increased by the elastic member engaging part 413. As the rod part 411 rises by acting on the , the opening/closing part 412 seals the vacuum forming hole 614 , so that the vacuum layer is stably maintained and a cooling and warming function can be performed.

On the other hand, if you want to replace the inner container (2) in the process of using the tumbler for cold storage and heat preservation, if the inner container (2) is rotated in the reverse direction with respect to the direction at the time of assembly, the female screw 622 of the second binding protrusion (62) ) is separated from the male screw 612 of the first binding protrusion 61, the binding state is released.

In this state, the inner container (2) can be removed from the outer container (1) and then simply exchanged for a new inner container (2) by the assembling method as described above.

Hereinafter, a modified example according to the present invention will be described, but detailed descriptions of components similar to those of the above-described exemplary embodiment will be omitted, and components having differences will be mainly described.

6 is a view for explaining a modified example of the tumbler according to an embodiment of the present invention, and is a cross-sectional view showing a simplified cross-sectional structure.

Referring to Figure 6, the tumbler according to a modified example of the present invention has an outer container (1) having an opening formed therein, and an inner container ( 2), provided with a vacuum forming valve device (4) installed in the outer container (1), the vacuum layer (v) is characterized in that the vacuum holding structure is further configured at the bottom of the outer container so that the airtightness of the vacuum layer (v) is more stably maintained. .

This vacuum holding structure is a secondary airtight maintenance action even if a leak occurs due to a malfunction or deformation, etc., when the airtight state of the rod insertion hole 613 or the vacuum forming hole 614 of the first binding protrusion 61 is released. If it can be performed, it can be configured in various forms, but as shown in FIG. 6 , it is characterized in that it is configured through a simple fastening structure, which will be described in detail below.

For example, the outer container 1 is provided with a connection groove 15 recessed into the bottom so that a negative pressure acting portion 9 for applying a negative pressure to the spaced space is inserted, this connection groove 15 is a female threaded portion on the inner circumferential surface ( 151) is formed.

A vacuum holding stopper 7 having a male threaded portion is installed in the female screw portion 151 of the connection groove portion 15, and is interposed to maintain airtightness between the connection groove portion 15 and the connection groove portion 15 when the vacuum maintenance stopper 7 is fastened. An auxiliary hermetic member (8) is constituted.

If the auxiliary airtight member 8 is a member capable of maintaining airtightness, an O-ring, a retainer, a packing, a gasket, etc. may be selected and applied without particular limitation.

As described above, the tumbler according to the modified example of the present invention uses a negative pressure generating means (not shown) such as a vacuum pump to form a vacuum layer (v) in a spaced space and inserts a vacuum stopper (7). Thus, when it is fastened to the female screw part 151 of the connection groove part 15, a secondary airtight state can be maintained, so that in addition to the primary sealing action by the vacuum forming valve device 4, the airtightness of the vacuum layer is secondarily improved. can keep

Accordingly, even if a malfunction occurs in the valve device 4 for vacuum formation or a minute leak occurs due to abrasion and deformation, it is possible to stably maintain a vacuum state, thereby exhibiting a synergistic effect capable of maintaining the warming and cooling action of the beverage.

On the other hand, the tumbler according to the present invention is a vacuum capable of releasing the vacuum of the vacuum layer (v) formed between the inner container (2) and the outer container (1) in consideration of ease of use, such as the ease of separation of the inner container (2). A release structure may be further configured.

For example, although the vacuum releasing structure is not shown in a separate drawing, when the opening and closing part 412 is rotated by a predetermined angle, the opening and closing part 412 is perforated so that the vacuum releasing operation (vacuum subtracting operation) is possible while communicating with the vacuum forming hole 614 It can be configured as a vacuum release device in the form of an incision or incision.

Although the configuration and operation of the tumbler according to an embodiment of the present invention described above have been described, this is an example, and those of ordinary skill in the art may not deviate from the technical spirit of the present invention. It will be appreciated that substitutions and variations are possible.

Therefore, it should be understood that the protection scope of the present invention extends to the invention described in the claims and their equivalents.

1: Outer container
2: Inner container
3: stopper member
4: Valve device for vacuum formation
41: valve body
42: elastic member
5: Confidentiality
6: means of bonding
61: first binding protrusion
62: second binding protrusion
7: vacuum stopper
8: auxiliary airtight member
9: Negative pressure action part

Claims (7)

In tumblr,
an outer container having an opening formed thereon; and
Including a;
and a valve device for forming a vacuum installed in the external container and configured to be opened when a negative pressure is applied to convert the spaced space into a vacuum layer and closed when a negative pressure is not applied.
According to claim 1,
a stopper member installed to seal the upper portion of the inner container;
Airtight member installed to maintain the airtightness of the vacuum layer in the upper connection portion of the outer container and the inner container; and
Tumbler comprising a; binding means formed on the outer container and the inner container for binding and releasing the inner container.
3. The method of claim 2,
The binding means includes: a first binding protrusion protruding from the inner bottom surface of the outer container and having a male screw formed on an outer circumferential surface; including,
The valve device for forming a vacuum includes a valve body installed in the first binding protrusion to perform a closing operation and an opening operation of the separation space, and an elastic member installed in the valve body and providing an elastic force to maintain the closing operation. A tumbler, characterized in that
4. The method of claim 3,
The first binding protrusion is provided with a rod insertion hole penetrating through the center and a plurality of vacuum forming holes penetrating around the rod insertion hole,
The valve body includes a rod part inserted into the rod insertion hole, an opening/closing part formed on a lower side of the rod part to open and closing the vacuum forming hole, and an elastic member engaging part connected to an upper side of the rod part,
The elastic member is a tumbler, characterized in that composed of a compression coil spring inserted into the rod portion is elastically installed under the elastic member engaging portion.
5. The method of claim 4,
The second binding protrusion protrudes to a dimension higher than the protrusion height of the first binding protrusion so as to secure a rising space for lifting the valve body at the bottom of the inner container, and communicates between the rising space and the separation space. The ball is formed
A tumbler, characterized in that a connection groove is recessed and formed so that a negative pressure acting portion for applying a negative pressure to the separation space is inserted on the bottom surface of the outer container corresponding to the first binding protrusion.
6. The method of claim 5,
The connection groove portion is formed with a female screw portion on the inner peripheral surface,
A tumbler comprising: a vacuum holding stopper having a male screw portion fastened to the female screw portion of the connection groove portion; and an auxiliary airtight member installed to maintain airtightness between the vacuum maintenance stopper and the connection groove portion.
5. The method of claim 4,
The tumbler, characterized in that the vacuum release unit is formed to enable the vacuum release operation while communicating with the vacuum forming hole during rotation of the opening and closing part.

Images