CN218355301U - Sofa - Google Patents

Abstract

The utility model provides a sofa, it includes back, side handrail and bottom subassembly, sofa still includes: a rotating assembly secured to the base assembly, wherein the rotating assembly includes a connecting plate; a base plate; and a wheel-shaped chassis having a circular rim and a hub attached to the rim, and a base plate fixed to the wheel-shaped chassis, wherein the protrusion of the connection plate is coupled to the protrusion of the base plate by a ball. Compared with the prior art, the rotatable sofa is provided on the premise that the comfort of the sofa is provided for a user. The bottom assembly of the sofa is low from the ground to provide a sufficient feel of safety and the size of the sofa's wheeled base can lower the center of gravity to enhance stability. For a conventional sofa with heavier wooden parts and larger floor area, the sofa uses balls instead of a traditional hole shaft for matching to guide rotation, so that the turning fluency is improved.

Description

Sofa

Technical Field

The utility model relates to the field of furniture, specifically, the utility model relates to a rotatable sofa.

Background

Sofas are common furniture in everyday life and typically comprise a wooden skeleton, which is then fitted with various additional layers, such as a sponge layer and a skin, to provide a good experience for the user.

Traditional sofas, especially single sofas, are fixed in position and cannot be moved or rotated basically when a user sits, which limits the user experience. For example, when a user does not wish to use a conventional swivel office chair, but rather a more comfortable sofa.

Since sofas are typically of a wooden construction and the number and weight of wooden components used in their body parts are relatively high and heavy relative to office chairs, the rotational support assembly of an office chair may not be able to provide support for the sofa body parts. The swivel support assembly of a conventional office chair typically includes several legs and height adjustable support posts, and this configuration is not compatible with sofa designs because the size of the sofa is many times the size of the office chair (as reflected in floor space differences) and the weight also provides greater adjustment. More importantly, the height of the bottom of the rotary design of the office chair from the ground is higher, which cannot bring enough safety feeling to users.

Therefore, there is a need for a sofa that meets the above requirements.

SUMMERY OF THE UTILITY MODEL

The application provides a sofa, it includes back, side handrail and bottom subassembly, the sofa still includes: a rotating assembly secured to the base assembly, wherein the rotating assembly includes a connecting plate; a base plate; and a wheel-shaped chassis having a circular rim and a hub attached to the rim, and a base plate fixed to the wheel-shaped chassis, wherein the protrusion of the connection plate is coupled to the protrusion of the base plate by a ball.

Further, the rotating assembly is fixed to a support rod of the base assembly or an end of the base assembly.

Further, the rotating assembly includes two fixed connections, and each fixed connection is attached to the base assembly.

Further, the swivel assembly further comprises a steering link, a vertical portion of the steering link being fixed to the fixed link and a horizontal portion of the steering link being fixed to the connecting plate.

In some embodiments, the rim of the wheel chassis has a diameter greater than the distance between the two fixed connections.

In some embodiments, the vertical distance between the wheel base and the fixed connection is in the range of 10-40 cm.

In certain embodiments, the connecting plate of the rotating assembly is fixed to the base assembly.

Compared with the prior art, the rotatable sofa is designed on the premise that the comfort of the sofa is provided for a user. The bottom assembly of such a sofa is low from the ground to provide a sufficient feel of safety and the size of the sofa's wheel-like base frame can lower the center of gravity to enhance stability. For conventional sofas with heavier wooden parts and larger floor space, the present application uses balls to guide rotation instead of traditional hole-shaft fit, thereby promoting rotational fluency.

Drawings

The present invention will be discussed in more detail on the basis of exemplary embodiments in the figures, in which:

fig. 1 shows a framework of a sofa according to an embodiment of the invention.

Fig. 2 shows a rotating assembly according to an embodiment of the invention.

Fig. 3 shows a schematic view of a connection plate and a bottom plate according to an embodiment of the invention.

Detailed Description

Fig. 1 illustrates a framework of a sofa (e.g., a single person sofa) according to an embodiment of the present invention. As shown in fig. 1, the sofa of the present application has a back 11, side arms 12 and a bottom assembly. The back 11 is used for the user to lean against it, the two side arms 12 are used for the user's arms (in particular the elbow joints) to lean against, and the base assembly is used for the user to sit on, similar to the prior art. In actual use, the sofa shown in fig. 1 has various coverings, such as a sponge layer and a surface leather layer, mounted on the surface thereof, so as to provide a good experience for users.

The bottom assembly of the sofa of fig. 1 includes support rods 13 and 14 which add rigidity to the bottom assembly to accommodate the greater weight of the user. In some embodiments, the number of support rods may vary, such as any one of 0-4, depending on the overall size of the sofa and the material (e.g., wood) of the components of the sofa frame, and the particular design can be determined by one skilled in the art based on the circumstances.

In order to enable the sofa to be conveniently turned, the sofa of the present application has a swivel assembly attached (especially at the bottom), fig. 2 shows a swivel assembly according to an embodiment of the present invention. In the embodiment shown in fig. 2, the rotating assembly comprises two fixed connectors 21, each of the two fixed connectors 21 being attached to the bottom assembly of the sofa (e.g. the support rods 13 and 14, or the ends of the bottom assembly), each fixed connector 21 being designed with a plurality of holes for receiving fasteners such as screws, nails, etc. to allow the fixed connectors 21 to be fixed to the sofa. In some embodiments, the first reinforcing bar 216 is additionally fixedly connected to two fixed connectors 21, thereby enhancing structural stability.

The rotating assembly of the embodiment in fig. 2 further comprises a steering link 22 and a connecting plate 25 (see also fig. 3). The steering linkage 22 is fixedly connected to the connecting plate 25 (by conventional fasteners, such as screws). The steering links 22 have an "L" shape and therefore have a vertical portion (perpendicular to the bottom assembly or ground of the sofa) and a horizontal portion 23 (parallel to the bottom assembly or ground of the sofa), the horizontal portions 23 of the two steering links 22 being fixedly connected to the ends of the connecting plates 25, respectively. In some embodiments, the second reinforcement bar 256 is additionally fixedly connected to the vertical portions of the two steering linkages 22 to enhance structural stability.

The sofa further comprises a base plate 27 and a wheel-like base frame 28, wherein the base plate 27 is coupled to the connecting plate 25 by a plurality of balls, e.g. steel balls, such that the connecting plate 25 is able to effect its rotation with respect to the base plate 27 by means of the rolling of the balls, whereby the body of the sofa, i.e. the back, side arm and bottom assembly, etc., is able to rotate with respect to the base plate 27, which makes a rotatable sofa according to the present application possible.

Fig. 3 shows a schematic view of a connection between a connection plate and a bottom plate according to an embodiment of the invention. As can be seen in fig. 3, the connecting plate 25 and the base plate 27 each have a corresponding annular projection, the projections of the connecting plate 25 and the base plate 27 each being able to partially accommodate a ball. Relative rotation between the connecting plate 25 and the base plate 27 is enabled when the connecting plate 25 and the base plate 27 are coupled together by balls (in actual use the base plate is typically stationary and the connecting plate rotates relative to it). The dimensions of the embodiment shown in fig. 3 are merely illustrative, and in some embodiments the opening of the projection of the base plate 27 is the same or substantially the same size as the diameter of the ball, while in some embodiments the opening of the projection of the base plate 27 is smaller than the diameter of the ball (as shown in fig. 3). The opening of the projection of the connecting plate 25 is typically smaller in size than the diameter of the ball. The protruding portion of the connection plate 25 may be integrally formed with the connection plate 25, or may be fixed to the connection plate by means of bonding or welding. Similarly, the protrusion of the base plate may be integrally formed with the base plate, or may be fixed to the base plate by means of bonding or welding.

The wheel base 28 has a circular rim and an axle attached to the rim, and the base plate 27 is fixed to the wheel base 28 (its axle) by fasteners such as bolts. In use, the diameter of the rim of the wheel-shaped chassis 28 is greater than the distance between the two fixed connections 21, which design can improve the stability of the sofa. In order to further improve the stability and give the user a good experience the vertical distance between the wheel-like chassis 28 and the fixed connection 21 should be small, for example in the range of 10-40cm, preferably 30cm or 35cm.

The connection plate 25 and the bottom plate 27 may have a substantially square shape, other shapes (e.g. circular) are also possible. The annular area S is shown in dashed lines in fig. 2 and represents the area where the balls are located, i.e. where the balls that couple the projections of the connecting plate 25 and the projections of the bottom plate 27 to each other are located. The plurality of balls may fully occupy the annular region S and in use a lubricant may be added to make the body of the sofa (all components above the swivel assembly) more smooth with respect to rotation of the wheel-like base.

In some embodiments, the rotating assembly may be simplified. The rotating assembly according to an embodiment of the present invention may comprise only a connecting plate directly fixed to the support bars 13 and 14 of the bottom assembly or to the end of the bottom assembly. This design eliminates the need for fixed and rotating connections, which is advantageous for further reducing the distance between the sofa's bottom assembly and the ground or wheel-like underframe.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims (7)

1. A sofa comprising a back, side arms, and a bottom assembly, wherein the sofa further comprises:

a rotating assembly secured to the base assembly, wherein the rotating assembly includes a connecting plate;

a base plate; and

a wheel chassis having a circular rim and a hub attached to the rim, and a base plate secured to the wheel chassis,

wherein the protrusion of the connecting plate is coupled to the protrusion of the base plate by a ball.

2. The sofa of claim 1, wherein the rotating assembly is secured to a support bar of the base assembly or an end of the base assembly.

3. The sofa of claim 2, wherein the swivel assembly includes two fixed connectors, and each fixed connector is attached to the bottom assembly.

4. The sofa of claim 3, wherein the swivel assembly further comprises a steering linkage, a vertical portion of the steering linkage being secured to the fixed linkage and a horizontal portion of the steering linkage being secured to the connecting plate.

5. The sofa of claim 4 wherein the rim of the wheel-like chassis has a diameter greater than a distance between the two fixed connections.

6. The sofa of claim 4, wherein the vertical distance between the wheeled base and the fixed connection is in the range of 10-40 cm.

7. The sofa of claim 2, wherein the connecting plate of the rotating assembly is secured to the base assembly.

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