Extendable Sofa

The present disclosure relates to the field of furniture, and in particular to an extendable sofa.

As people's income increases rapidly and the Internet e-commerce market develops rapidly, people have higher requirements for indoor furniture and have diverse ways of selecting the furniture. While economic environmental conditions are focused, social values of low-carbon environmental protection also need to be considered. For a traditional sofa, wood is used as a frame support, therefore, an increased number of trees are cut down, causing a certain adverse impact in the environment. In addition, the traditional sofa is large in size, transportation cost for the traditional sofa is high, and the traditional sofa may not be transported easily.

The present disclosure provides an extendable sofa, which may be transported, carried, and stored easily.

The present disclosure provides an extendable sofa, including:

In some embodiments, the support includes:

In some embodiments, when the armrest portion and the backrest portion are in a same state, and the height of the armrest portion is less than or equal to the height of the backrest portion.

In some embodiments, the base has a length direction and a width direction perpendicular to the length direction.

The backrest portion is extending along the length direction of the base, and the backrest portion is disposed on a side of the base; and/or

The armrest portion is extending along the width direction of the base, and the armrest portion is disposed at one or two ends of the base.

In some embodiments, a length of the backrest portion is equal to or less than a length of the base; and/or

In some embodiments, the first extending-retracting layer includes:

The second extending-retracting layer includes:

Each first elastic member is configured to generate an elastic deformation to enable the first extending-retracting layer to switch between a retracted state and an extended state.

Each second elastic member is configured to generate an elastic deformation to enable the second extending-retracting layer to switch between a retracted state and an extended state.

In some embodiments, a wire diameter of the first elastic member is smaller than a wire diameter of the second elastic member.

In some embodiments, each first sleeve assembly includes a first sleeve and a second sleeve opposite to the first sleeve, at least a portion of one of the plurality of first elastic members is received in the oppositely disposed first sleeve and the second sleeve of a respective one of the plurality of first sleeve assemblies.

Each second sleeve assembly includes a third sleeve and a fourth sleeve opposite to the third sleeve, at least a portion of one of the plurality of second elastic members is received in the oppositely disposed third sleeve and the fourth sleeve of a respective one of the plurality of second sleeve assemblies.

In some embodiments, when the first extending-retracting layer is in the retracted state, at least a portion of the plurality of first elastic members are received in a respective portion of the plurality of first sleeve assemblies.

When the first extending-retracting layer is in the extended state, a portion of the plurality of first elastic members are received in the respective portion of the plurality of first sleeve assemblies, and another portion of the plurality of first elastic members are disposed outside the plurality of first sleeve assemblies.

When the second extending-retracting layer is in the retracted state, at least a portion of the plurality of second elastic members are received in a respective portion of the plurality of second sleeve assemblies.

When the second extending-retracting layer is in the extended state, a portion of the plurality of second elastic members are received in the respective portion of the plurality of second sleeve assemblies, and another portion of the plurality of second elastic members are disposed outside the plurality of second sleeve assemblies.

In some embodiments, the base further includes a first protective layer, the first protective layer wraps the first extending-retracting layer, the first protective layer is configured to move as the first extending-retracting layer moves.

The support further includes a second protective layer, the second protective layer wraps the second extending-retracting layer, the second protective layer is configured to move as the second extending-retracting layer moves.

In some embodiments, the extendable sofa according further includes:

A thickness of the first sponge layer is the same as a thickness of the second sponge layer.

In some embodiments, the extendable sofa according further includes:

A thickness of the third sponge layer is the same as a thickness of the fourth sponge layer.

In some embodiments, the thickness of the third sponge layer is greater than the thickness of the first sponge layer.

In some embodiments, the extendable sofa further includes:

The outer cover is connected to a side of the first sponge layer, a side of the second sponge layer, a side of the third sponge layer, and a side of the fourth sponge layer by a spray adhesive foam.

The outer cover is configured to move as the first extending-retracting layer and the second extending-retracting layer move.

According to the extendable sofa of the present disclosure, both the base and the support can be switched between the retracted state and the extended state, and the height of the base and the height of the support are changed accordingly. In this way, an overall or localized configuration of the extendable sofa is changed as the state of the base and/or the state of the support changes, and therefore, a localized or overall height of the extendable sofa is changed. During transportation, carrying or storage, the base and the support of the extendable sofa is operated to be the retracted state, and the overall height of the extendable sofa is reduced, in other words, an overall size of the extendable sofa is reduced. Therefore, the extendable sofa can be transported, stored, or carried easily.

Technical solutions in the embodiments of the present disclosure will be clearly and completely described below by referring to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments show only a part of, not all of, the embodiments of the present disclosure. The following description of at least one exemplary embodiment is merely illustrative, and does not limit the present disclosure and an application of the present disclosure. All other embodiments, which are obtained by any ordinary skilled person in the art based on the embodiments in the present disclosure without making creative work, shall fall within the scope of the present disclosure.

Reference to “embodiment” or “implementation” herein means that a particular feature, a structure, or a property described in one embodiment or one implementation may be included in at least one embodiment of the present disclosure. The presence of the term at various sections in the specification does not necessarily refer to a same embodiment, nor a separate or an alternative embodiment that is mutually exclusive of other embodiments. Any ordinary skilled person in the art shall understand, both explicitly and implicitly, that the embodiments described herein may be combined with other embodiments.

As shown in, in an embodiment of the present disclosure, at least a portion of the extendable sofacan be extended and retracted. Alternatively, at least a portion of the extendable sofacan be switched between an extended state and a retracted state to change a height of at least a portion of the extendable sofa. The height of the at least portion of the extendable sofain the retracted state is less than the height of the at least portion of the extendable sofain the extended state. The extendable sofabeing in the retracted state may also be referred to as the extendable sofabeing in a compressed state.

The height of the extendable sofais interpreted as a height of the extendable sofain a direction perpendicular to the floor after the extendable sofais placed on a placing surface such as the floor. Therefore, when the extendable sofain the present disclosure is not being used by a user, for example, when the extendable sofaneeds to be transported, stored, or carried, the extendable sofamay be operated into the retracted state to reduce the height of the extendable sofabased on the extendable and retractable nature of the extendable sofa. When the extendable sofaneeds to be used, the extendable sofais switched from the retracted state to the extended state to increase the height of the extendable sofa, enabling the extendable sofato be used by the user, such as allowing the user to sit or lie thereon.

Exemplarily, an overall configuration of the extendable sofacan be changed. That is, the entirety of the extendable sofaof the present embodiment can be extended and retracted. It is understood that, the present embodiment is illustrated based on the example where the entirety of the extendable sofacan be extended and retracted. In other cases, it is also feasible that only a portion of the extendable sofacan be extended and retracted.

Exemplarily, the extendable sofaincludes a baseand a support. The baseincludes a first extending-retracting layer. The first extending-retracting layercan be switched between a retracted state and an extended state to change a height of the base. The supportis disposed on an upper surface of the base. The supportis disposed along an edge of at least a portion of the base. The supportincludes a second extending-retracting layer. The second extending-retracting layercan be switched between a retracted state and an extended state to change a height of the support.

The basefurther includes a lower surface opposite to the upper surface of the base. The lower surface of the basefaces towards the placing surface, such as the floor, on which the extendable sofais placed. The upper surface of the basefaces away from the placing surface, such as the floor. In other words, the upper surface of the baseis a side on which the user may sit or lie down.

The extendable sofaof the present embodiment can be extended and retracted as the baseis extended and retracted or as the supportis extended and retracted. Similarly, the height of the basein the retracted state is less than the height of the basein the extended state, and the height of the supportin the retracted state is less than the height of the supportin the extended state.

The basehas a height direction Z, a length direction X, and a width direction Y. Every two directions of the length direction X, the width direction Y, and the height direction Z of the baseare substantially perpendicular to each other. The height of the baseis interpreted as the height of the basealong the height direction Z. Similarly, the height of the supportis interpreted as the height of the supportalong the height direction Z of the base. The height of the extendable sofais interpreted as the height of the extendable sofaalong the height direction Z of the base.

To be noted that a height difference between the height of the basein the extended state and the height of the basein the retracted state of the present embodiment may be determined according to demands of the user, and a height difference between the height of the supportin the extended state and the height of the supportin the retracted state of the present embodiment may be determined according to demands of the user.

To be further noted that the height difference for the basein the extended state and in the retracted state may be equal to or different from the height difference for the supportin the extended state and in the retracted state.

Exemplarily, the supportmay include a backrest portionand an armrest portion. The backrest portionis configured to provide support for a back of the user, and the armrest portionis configured to provide support for an arm of the user. It is understood that functions of the backrest portionand the armrest portionin the present disclosure are merely illustrative and are not for limitation. For example, the armrest portionmay also be configured to provide support for the back of the user in some cases, and the armrest portionmay also be configured to provide support for a head of the user in some cases.

The backrest portioncan be switched between a retracted state and an extended state to change a height of the backrest portion. The height of the backrest portionin the retracted state is less than the height of the backrest portionin the extended state. The height of the backrest portionis interpreted as the height of the backrest portionalong the height direction Z of the base.

The armrest portioncan be switched between a retracted state and an extended state to change a height of the armrest portion. The height of the armrest portionin the retracted state is less than the height of the armrest portionin the extended state. The height of the armrest portionis interpreted as the height of the armrest portionalong the height direction Z of the base.

A height difference between the height of the backrest portionin the extended state and the height of the backrest portionin the retracted state can be equal to or different from a height difference between the height of the armrest portionin the extended state and the height of the armrest portionin the retracted state. In the present embodiment, the height difference between the height of the backrest portionin the extended state and the height of the backrest portionin the retracted state is equal to the height difference between the height of the armrest portionin the extended state and the height of the armrest portionin the retracted state.

Exemplarily, the backrest portionand the armrest portionare configured as a one-piece and integral structure. In other embodiments, the backrest portionand the armrest portionare separated components and are both connected to the base. In the case where the backrest portionand the armrest portionare configured as separated components, the backrest portionand the armrest portionmay be connected to each other or may be spaced apart from each other.

Exemplarily, the armrest portionis connected to the backrest portion. When the armrest portionand the backrest portionare in a same state, and the height of the armrest portionis less than or equal to the height of the backrest portion

Exemplarily, the backrest portionis extending along the length direction X of the base, and the backrest portionis disposed on a side of the base.