Flexible and Portable Sofa Bed

The present invention relates to the technical field of sofa beds, in particular to a flexible and portable sofa bed.

A sofa bed is a popular furniture at present. Compared with other furniture (such as separate chairs), sofa bed allows more people to sit or lie down comfortably side by side. A common sofa bed consists of a frame structure and a mattress, which can be unfolded to switch the sofa bed in various modes, so that the sofa bed can be transformed into a sitting sofa and a horizontal bed, and pillows, cushions and the like are added.

U.S. Pat. No. 14,369,224 discloses an automatic sofa bed, which is controlled by an actuating device, and the user can switch from the sofa configuration to the bed configuration simply by pressing a button, and vice versa, which is convenient to use. However, this type of sofa bed is complicated in structure, occupies a large space, and its parts are easy to be damaged, and it is difficult for ordinary people to move or lift, so it is not flexible in daily use.

U.S. Pat. No. 17,853,077 discloses a sofa bed with a sliding system, which has three movable seat bases and can be switched between bed configuration and sofa configuration. The connection structure between parts of this sofa bed is complicated, which is not convenient for users to switch or store between configurations at any time.

Based on the above problems, it is necessary to provide a brand-new sofa bed, which has various use modes, is flexible and light, and occupies small space. At the same time, the sofa bed is simple and light in structure, easy to assemble and convenient to use, and further improves the user experience.

The present invention provides a flexible and portable sofa bed, which includes a cushion assembly and a support frame; and

The present invention further provides a flexible and portable sofa bed, which includes a cushion assembly and a support frame; and

The present invention further provides a method for realizing daily life, work and entertainment by using a sofa bed, comprising providing a flexible and light sofa bed, wherein the sofa bed comprises a cushion assembly and a support frame; and

The terms “invention,” “the invention,” “this invention” and “the present invention” used in this patent are intended to refer broadly to all of the subject matter of this patent and the patent claims below. Statements containing these terms should be understood not to limit the subject matter described herein or to limit the meaning or scope of the patent claims below. Embodiments of the invention covered by this patent are defined by the claims below, not this summary. This summary is a high-level overview of various embodiments of the invention and introduces some of the concepts that are further described in the detailed description section below. This summary is not intended to identify key or essential features of the claimed subject matter, nor is it intended to be used in isolation to determine the scope of the claimed subject matter. The subject matter should be understood by reference to appropriate portions of the entire specification of this patent, any or all drawings and each claim.

In the figures: Cushion assembly (); Front cushion (); Center cushion (); Fastener (); Opening (); Support feet (); Support (); Baffle plate (); Fastener (); Back cushion (); Foldable feet (); Support frame (); Back plate (); Side plate (); Cross bar (); Support rod (); Reinforcing rod (); Storage space (); Bed foot ().

In describing the preferred embodiments, specific termi-nology will be resorted to for the sake of clarity. It is to be understood that each specific term includes all technical equivalents which operate in a similar manner to accomplish a similar purpose.

While various aspects and features of certain embodiments have been summarized above, the following detailed description illustrates a few exemplary embodiments in further detail to enable one skilled in the art to practice such embodiments. Reference will now be made in detail to embodiments of the inventive concept, examples of which are illustrated in the accompanying drawings. The accompanying drawings are not necessarily drawn to scale. The described examples are provided for illustrative purposes and are not intended to limit the scope of the invention. It should be understood, however, that persons having ordinary skill in the art may practice the inventive concept without these specific details.

It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first attachment could be termed a second attachment, and, similarly, a second attachment could be termed a first attachment, without departing from the scope of the inventive concept.

It will be understood that when an element or layer is referred to as being “on,” “coupled to,” or “connected to” another element or layer, it can be directly on, directly coupled to or directly connected to the other element or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being “directly on,” “directly coupled to,” or “directly connected to” another element or layer, there are no intervening elements or layers present. Like numbers refer to like elements throughout. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items.

As used in the description of the inventive concept and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates other.

As a preferred embodiment of the application of the present invention, in order to make the sofa bed have multiple use modes, be flexible, light and occupy small space, at the same time, the sofa bed is simple and light in structure, easy to assemble and convenient to use. The present invention provides a flexible and portable sofa bed.

Referring to, a sofa bed includes a cushion assemblyand a support frame.

Referring to, the support frameincludes a back plateand side plates, wherein the number of the side platesis two, and the number of the back platesis one, and the side platesand the back platetogether form a rectangular structure with a gap.

In some embodiments (not shown in the figure), the number of the side platesand the back platecan also be other quantitative characteristics, as long as it can form a sofa-shaped structure.

Referring to, the support frameincludes two cross bars, which are arranged parallel to the back plate, and the two cross barsare also arranged parallel to each other, and the two cross barsare fixed between the two side platesby threaded connection.

Further, both side platesare provided with two support rods, which are fixed on the side platesthrough threads, and the support rodsare configured to support the cushion assembly.

In some embodiments (not shown in the figure), the number of the support rodscan also be one, three or other quantitative characteristics.

Further, a reinforcing rodis connected between the two cross bars, which is located below the cross bars. The reinforcing rodhas an incomplete trapezoidal structure, that is, the reinforcing rodhas an equilateral trapezoid structure without a bottom, and the two hypotenuses of the reinforcing rodare connected to the two cross barsby threads respectively.

Further, referring to, the cross bar, the support barand the reinforcing rodtogether define a storage space, which is configured to store articles.

Further, referring to, the cushion assemblyis arranged in a rectangular structure with a gap formed by the back plateand the side plate, and the side platedefines the turning and sliding trajectory of the cushion assembly, that is, the cushion assemblycan only slide and turn in a direction parallel to the side plate. The side plateextends upward and is higher than the cushion assembly, and the side plateis configured to serve as an armrest of the sofa bed or a guardrail of the sofa bed.

Referring to, the cushion assemblyis connected with the support framethrough a fastener. Referring to, the cushion assemblyis provided with a front cushion, a center cushionand a back cushionin the longitudinal direction, and the fasteneris arranged on the center cushionthrough threaded connection.

Referring to, the fastenerhas an opening, and the size of the openingis consistent with the thickness of the support rod, so that the center cushioncan be detachably fastened to the support rodthrough the fastener.

Referring to, a fasteneris arranged below the center cushion. When the sofa bed is in the sofa state, the fastenerwill be buckled on the cross barto fix the sofa bed. Since there are two cross bars, the fasteneris fastened on the cross barfar away from the back plate.

Referring to, the center cushionhas support feet, and the support framehas bed foot. Both the support feetand the bed footare in contact with the ground to jointly support the sofa bed.

Further, the front cushionis hinged with the center cushion, and the front cushioncan be turned over relative to the center cushion, be in the same plane with the center cushionor overlap with the center cushion. When the sofa bed is in the sofa state, the front cushionis folded on the center cushion, and the front cushionand the center cushioncompletely overlap.

Further, the front cushionhas a turning angle of not less than 180 degrees, and when the sofa bed is in a recliner state, the front cushionturns to be in the same parallel plane with the center cushion.

Referring to, the front cushionhas foldable feetwith a folding angle of not less than 90 degrees, and the foldable feetare accommodated in the front cushionwhen the sofa bed is in the sofa state; and when the sofa bed is in a recliner state, the foldable feetare in contact with the ground.

Further, the back cushionis fixed between two side platesby threaded connection, and the back cushionis hinged with the side plates. When the sofa bed is in the sofa state or the recliner state, the back cushionis attached to the back platein an inclined state to form a backrest and support the back of the user.

Referring toto, one end of the center cushionis provided with a support, which is Z-shaped, and the supportis fastened to the center cushionby threads. When the sofa bed is in the bed state, the back cushionis turned over and attached to the support, and the front cushion, the center cushionand the back cushionare in the same parallel plane.

As shown in, the front of the center cushionis detachably connected with a baffle platethrough threads, and a support feetis arranged behind the baffle plate. The support feetand the baffle plateare designed to tightly attached to each other, that is, the support feetand the baffle plateare fitted together after assembly.

In this embodiment, the sofa bed is made of an iron frame and has a square structure. In some embodiments (not shown in the figure), the shape of the sofa bed can be a diamond structure, a polygonal structure, a geometric structure such as an oval structure, or other curved edge structures and irregular graphic structures.

In another embodiment (not shown), the side plateis sewn with a cloth bag, which is configured to store articles. At the same time, the four corners of the bottom of the sofa bed are provided with pulleys which are detachably connected with the sofa bed.

Referring toto, as another preferred embodiment of the present application, the present application further provides a method of using a sofa bed to realize daily life, work and entertainment, which requires the use of a flexible and portable sofa bed provided by the present application.

When the sofa bed needs to be used, it is necessary to fix the back plateand the side platewith the cross barand the support barthrough threaded connection, so that the sofa bed has a rectangular frame structure. Then, bed footand reinforcing rodare respectively installed under the side platesand the cross barsto further consolidate the frame structure, thus completing the assembly of the support frame.

Secondly, the cushion assemblyis assembled to the support framethrough the fastener, thus completing the assembly of the sofa bed. During use, the sofa bed has three working states that can be converted.

When the sofa bed needs to be adjusted to the sofa state, as shown in, the back cushionis tilted against the support frameto form a backrest, and there is a certain inclination angle between the back cushionand the support frame. In other embodiments, the user can adjust the inclination angle between the back cushionand the support frameaccording to his own needs. Subsequently, the front cushionis folded on the center cushion, and the front cushioncan completely overlap with the center cushion. At this time, the front cushionand the center cushionbecome seat cushions in a sofa state, and the front cushionand the center cushioncan store articles through the storage space.

When it is necessary to adjust the sofa bed to the recliner state, as shown in, the back cushionis tilted against the support frameto form a backrest, and there is a certain inclination angle between the back cushionand the support frame. In other embodiments, the user can adjust the inclination angle between the back cushionand the support frameaccording to his own needs. Subsequently, the front cushionis turned over 180 degrees, so that the front cushionand the center cushionare in a continuous plane, that is, the front cushionand the center cushionare in the same horizontal plane. Thus, the user can recline on the sofa bed. At this time, the front cushioncan support the user's legs, the center cushionbecomes a seat cushion, and the storage spaceis located below the center cushion.

In this embodiment, when it is necessary to adjust the sofa bed to the bed state, as shown in, it is necessary to first turn the front cushionto a continuous plane with the center cushion, and then pull the center cushionout of the support frame, and the center cushioncan slide along the support rod. After the center cushionis pulled out, the back cushionis turned over. At this time, the back cushiondoes not need to lean on the support frame. At this time, the front cushion, the center cushionand the back cushionbecome continuous planes, that is, the front cushion, the center cushionand the back cushionare in the same horizontal plane, and the storage spaceis located below the back cushion.

In other embodiments (not shown in the figure), the center cushioncan be pulled out from the support framefirst, and the center cushioncan slide along the support rod. After the center cushionis pulled out, the front cushionand the back cushionare turned over respectively, so that the front cushion, the center cushionand the back cushionbecome a continuous plane, and the storage spaceis located below the back cushion.

When the sofa bed is adjusted to the required state, you can start your daily life, work and entertainment on the sofa bed.

When the sofa bed is used, all parts of the sofa bed can be disassembled. All parts are directly and detachably connected by threads. Therefore, after use, each component can be disassembled separately for storage.

To sum up, the sofa bed provided by the application of the present invention has the characteristics of simple and light structure, and the working state of the sofa bed can be changed by pulling the center cushionand turning over the front cushionand the back cushion. Users can well control the structure of the product through simple actions such as pulling and turning, so that the sofa bed can be changed between the sofa state, the recliner state or the bed state, so that the sofa bed has the characteristics of convenient use and multifunctional mode, and the user experience is further improved.

In this embodiment, the behaviors that can be used for daily life, work and entertainment include but are not limited to the following: diet, such as dining, etc.; rest: such as sleeping and reading; office: such as using computers to handle work affairs and attend meetings; study: such as reading professional books and writing reports; creation: such as painting and writing; socialization: such as gathering with friends, family dinners, etc.; games: such as playing board games and video games; these behaviors can be carried out on the sofa bed, making the sofa bed an important tool for daily life, work and entertainment. For example, the user can put a computer on the sofa bed for work and can also put food on the sofa bed for dinner and may also play chess and other entertainment activities on the sofa bed.

In this embodiment, the frame of the sofa bed is made of metallic iron, which has the following advantages: good heat resistance: metallic iron is not easy to burn and can withstand higher temperatures; high mechanical strength: metallic iron has high mechanical strength, which makes the frame more stable and durable; good durability: metallic iron is not easy to age and has long service life; fire-proof, moisture-proof and antimagnetic: the metal iron plate has good fire-proof, moisture-proof and antimagnetic properties; environmental protection: metallic iron is a reusable resource product with little impact on the ecological environment; good dimensional stability: metallic iron has good dimensional stability and is not easily affected by temperature and humidity changes; easy to clean and maintain: the metal iron surface is smooth and easy to clean and maintain; various shapes: metal iron can be made into frames of various shapes and styles through various processing technologies.

Further, all parts of the sofa bed are detachably connected and fixed through nuts. Using nuts to connect sofa bed parts has the following advantages: it is convenient to assemble and disassemble: the connection mode of nuts can be easily assembled and disassembled, which is very useful for furniture that needs to move or replace parts frequently; the structure is firm and reliable: the connection mode of nuts can provide a firm and reliable connection, which makes the furniture more stable; lower cost: compared with other connection methods, the nut connection method has lower cost; increasing the pre-tightening force to prevent loosening: the connection mode of nuts can increase the pre-tightening force and prevent the joint from loosening; not causing the phase change of the material composition at the joint: the connection mode of the nut will not cause the phase change of the material composition at the joint; strong adaptability: the connection mode of nut is suitable for all kinds of materials and designs.