A sofa chair with a rotatable armrest

By designing rotatable armrests on sofas and chairs, the problem of fixed armrests not being able to support the hands is solved, improving user comfort and the flexibility of armrest use, and preventing wear and tear.

CN224539812UActive Publication Date: 2026-07-24SHANGPIN GUIHE (ZHANGZHOU) HOUSEHOLD BEAUTY APPLIANCE MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGPIN GUIHE (ZHANGZHOU) HOUSEHOLD BEAUTY APPLIANCE MANUFACTURING CO LTD
Filing Date
2025-10-13
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The fixed armrests of existing sofas and chairs cannot effectively support the user's hands, resulting in discomfort for the user's hands after sitting down.

Method used

Design a sofa chair with rotatable armrests. The rotatable function of the armrests is achieved through rotating connectors and hinge joints, allowing the armrests to converge towards the center to support the hands.

Benefits of technology

The armrests are adjustable, improving user comfort and providing effective support for the hands as needed, thus preventing wear and tear on the sofa and chair upholstery.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a sofa chair with rotatable handrails, including sofa chair main part and the handrail unit of assembly in the both sides of sofa chair main part, both sides the handrail unit all includes fixed bolster, fixed part, rotary connector, axle rod, articulated joint and handrail, fixed bolster is fixed on sofa chair main part and is provided with mounting hole, fixed part fixed connection is in the bottom of mounting hole, the first end of axle rod inserts mounting hole, and is connected fixed part through rotary connector, makes axle rod can rotate relative to fixed part, the first branch of articulated joint fixed connection axle rod's second end, the handrail is fixed on the second branch of articulated joint, handrail can switch to the state of extending inwards and support.
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Description

Technical Field

[0001] This utility model relates to the field of seating, specifically to a sofa chair with rotatable armrests. Background Technology

[0002] A sofa chair is a piece of furniture that combines the comfort of a sofa with the practicality of a chair. It is typically designed as a single or double seat and is suitable for various settings such as homes, offices, and meeting rooms. The main features of a sofa chair are its comfortable seat and backrest, usually made of materials such as foam, memory foam, or latex to provide good support and comfort.

[0003] Sofas usually come with arched fixed armrests on both sides. However, when users sit down, they usually don't spread their hands out to rest on the fixed armrests on both sides, but rather on their body. This can feel uncomfortable, so many users would like to have their hands supported by the armrests when they place them in the middle. However, there are currently no sofas with this feature. Utility Model Content

[0004] Therefore, this utility model provides a sofa chair with rotatable armrests. By rotating the armrests, the armrests can be brought closer together to support the user's hands.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows: A sofa chair with rotatable armrests includes a sofa chair body and armrest units mounted on both sides of the sofa chair body. Each armrest unit includes a fixed bracket, a fixing member, a rotating connector, a shaft, a hinge joint, and an armrest. The fixed bracket is fixed to the sofa chair body and has mounting holes. The fixing member is fixedly connected to the bottom of the mounting holes. The first end of the shaft is inserted into the mounting holes and connected to the fixing member through the rotating connector, so that the shaft can rotate relative to the fixing member. The first arm of the hinge joint is fixedly connected to the second end of the shaft, and the armrest is fixed to the second arm of the hinge joint.

[0006] Furthermore, the rotating connector includes a first bolt, a nut, a first connecting piece, and a second connecting piece. Both the first and second connecting pieces are provided with connecting holes. The shank of the first bolt passes through the connecting holes of the first and second connecting pieces and is screwed and fixed to the nut, so that the first and second connecting pieces are restricted between the nut and the bolt and can rotate relative to the first bolt. The first connecting piece is fixedly connected to the fixing member, and the second connecting piece is fixedly connected to the shaft.

[0007] Furthermore, a washer is provided between the nut and the second connecting piece.

[0008] Furthermore, the fixing member has a clearance hole, the first end of the shaft has a clearance slot, the nut of the first bolt is located in the clearance hole of the fixing member, the nut is located in the clearance slot of the shaft, and the first connecting piece and the second connecting piece are located between the fixing member and the shaft.

[0009] Furthermore, the fastener and the first connecting piece are secured by a plurality of second bolts, and / or the shaft and the second connecting piece are secured by a plurality of third bolts.

[0010] Furthermore, the fastener is a snap-fit ​​fastener with two opposing elastic snaps, and the fastener is fixedly fastened to the bottom of the mounting hole by the two elastic snaps.

[0011] Furthermore, the second end of the shaft has an upwardly protruding connecting plate, and the first arm of the hinge joint has a "U"-shaped opening. The connecting plate of the shaft is inserted into the "U"-shaped opening of the first arm of the hinge joint and locked by a locking fastener.

[0012] Furthermore, the fixing bracket is formed by splicing and fixing two oppositely arranged fixing pieces. The two fixing pieces together form the mounting hole. The two fixing pieces are respectively attached to the side surface of the sofa chair body. The first fixing piece has an insertion post that inserts into the sofa chair body. The insertion post is provided with a screw hole and also includes a fourth bolt. The fourth bolt passes through the second fixing piece and is screwed into the screw hole of the insertion post, thereby fixing the fixing bracket to the sofa chair body.

[0013] The main body of the sofa chair is filled with polystyrene foam.

[0014] The technical solution provided by this utility model has the following beneficial effects: The armrest unit is designed to be installed on the main body of the sofa chair, resulting in a rotatable armrest. After the user sits down, they can rotate the armrest according to their actual needs to bring it closer to the center and provide support for their hands. Attached Figure Description

[0015] Figure 1 The diagram shown is a structural schematic of a sofa chair with rotatable armrests in the embodiment. Figure 2 The diagram shown is a structural schematic of a single handrail unit in the embodiment. Figure 3 The diagram shown is an exploded view of the structure of a single handrail unit in the embodiment. Figure 4 The diagram shown is a partial structural schematic of a single handrail unit in the embodiment; Figure 5The figure shown is a partial structural cross-sectional view of a single handrail unit in the embodiment. Detailed Implementation

[0016] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0017] In the description of this utility model, terms such as "upper", "lower", "left", "right", "front", and "rear" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0019] Reference Figures 1 to 5 As shown, this embodiment provides a sofa chair with rotatable armrests, including a sofa chair body 1 and armrest units 10 assembled on both sides of the sofa chair body 1; specifically, in this embodiment, the sofa chair body 1 is made of a frame and foam (specifically polystyrene foam in this embodiment), and is a single massage chair structure, which has a backrest 2 and fixed armrests 3 on both sides; the armrest units 10 on both sides are movable armrests, respectively assembled on the two fixed armrests 3.

[0020] Each of the armrest units 10 on both sides includes a fixed bracket 11, a fixing member 12, a rotating connector 13, a shaft 14, a hinge joint 15, and an armrest 16. The fixed bracket 11 is fixed to the main body 1 of the sofa chair to form a fixed mounting platform. The fixed bracket 11 is provided with a mounting hole 111, which is a vertically extending hole. The fixing member 12 is fixedly connected to the bottom of the mounting hole 111. The first end of the shaft 14 is inserted into the mounting hole 11 and connected to the fixing member 12 through the rotating connector 13, so that the shaft 14 can rotate relative to the fixing member 12, that is, the shaft 14 can rotate within the mounting hole 111. The hinge joint 15 has a first arm 151 and a second arm 152 that are hinged to each other. The first arm 151 of the hinge joint 15 is fixedly connected to the second end of the shaft 14, and the armrest 16 is fixed to the second arm 152 of the hinge joint 15.

[0021] Thus, the armrest 16 can swing horizontally by rotating the shaft 14, and the armrest 16 is mounted on the shaft 14 via the hinge joint 15, allowing it to swing at a certain angle in the vertical direction for convenient operation. In the initial state, the armrest 16 faces forward and is attached to the surface of the fixed armrest 3. When in use, the armrest 16 can be flipped upward at a certain angle (at this time, the hinge joint 15 is in motion), causing the armrest 16 to detach from the sofa chair body 1. Then, it is flipped horizontally inward (inward refers to the direction towards the middle of the sofa chair body 1), at which time the shaft 14 rotates, causing the armrest 16 to extend inward. Then, the armrest 16 is lowered, that is, the armrest 16 swings downward until the armrest 16 is supported by the fixed bracket 11 or restricted by the hinge joint 15 and cannot continue to swing downward. In this way, it switches to the inward extension state, so that the user can place their hands on the armrest 16 for support. The use of hinge joint 15 allows the armrest 16 to swing up and down, preventing the armrest 16 from scratching and wearing down the outer skin of the sofa body 1.

[0022] Furthermore, in this embodiment, the rotating connector 13 includes a first bolt 131, a nut 134, a first connecting piece 132, and a second connecting piece 133. Both the first connecting piece 132 and the second connecting piece 133 have connecting holes. The shank of the first bolt 131 passes through the connecting holes of the first connecting piece 132 and the second connecting piece 133 and is screwed and fixed to the nut 134. This restricts the first connecting piece 132 and the second connecting piece 133 between the nut of the first bolt 131 and the nut 134, allowing them to rotate relative to the first bolt 131. In other words, both the first connecting piece 132 and the second connecting piece 133 are freely rotatable. The first connecting piece 132 is fixedly connected to the fixing member 12, and the second connecting piece 133 is fixedly connected to the shaft 14; thus, reliable installation and rotatable configuration of the shaft 14 are achieved.

[0023] A washer 135 is also provided between the nut 134 and the second connecting piece 133. In this way, the rotation of the second connecting piece 133 will not affect the nut 134, keeping the nut 134 fixed, preventing the structure from loosening, and also avoiding mutual wear between the second connecting piece 133 and the nut 134.

[0024] The fixing member 12 has a clearance hole 122, and the first end of the shaft 14 has a clearance slot. The nut of the first bolt 131 is located in the clearance hole 122 of the fixing member 12, and the nut 134 is located in the clearance slot of the shaft 14. The first connecting piece 132 and the second connecting piece 133 are located between the fixing member 12 and the shaft 14; thus, the volume can be reduced.

[0025] Furthermore, the fastener 12 and the first connecting piece 132 are secured by a plurality of second bolts 136, and the shaft 14 and the second connecting piece 133 are secured by a plurality of third bolts; thus, reliable and stable assembly is achieved, and disassembly is possible. Of course, in other embodiments, the fixing method of the fastener 12 and the first connecting piece 132, or the fixing method of the shaft 14 and the second connecting piece 133, is not limited to this, and other methods such as welding or riveting can also be used for fixing.

[0026] Furthermore, the fixing member 12 is a snap-fit ​​fixing member, having two opposing elastic snaps 121. The fixing member 12 is fixedly fastened to the bottom of the mounting hole 111 by the two elastic snaps 121. In this embodiment, the bottom of the fixing bracket 11 has a slot that extends through the mounting hole 111, and the elastic snaps 121 of the fixing member are fastened into the slot to achieve fixation. With this configuration, during actual assembly, the fixing member 12, the rotating connector 13, and the shaft 14 can be assembled in advance, and then inserted into the mounting hole 111 of the fixing bracket 11. As it is inserted, the elastic snaps 121 of the fixing member 12 automatically snap into the slot at the bottom, achieving simple installation.

[0027] Furthermore, the second end of the shaft 14 has an upwardly protruding connecting plate 141, and the first arm 151 of the hinge joint 15 has a "U"-shaped opening. The connecting plate 141 of the shaft 14 is inserted into the "U"-shaped opening of the first arm 151 of the hinge joint 15 and locked by a fastener (a bolt in this embodiment). The structure is simple to connect and easy to operate.

[0028] Furthermore, the fixing bracket 11 is formed by splicing and fixing two opposing fixing pieces 112. The two fixing pieces 112 together form the mounting hole 111. The two fixing pieces 112 are respectively attached to the side surface of the sofa chair body 1. The first fixing piece 112 has an insertion post 113 that inserts into the sofa chair body 1. The insertion post 113 is provided with a screw hole and also includes a fourth bolt. The fourth bolt passes through the second fixing piece 112 and is screwed into the screw hole of the insertion post 113, thereby fixing the fixing bracket 11 to the sofa chair body 1. It can be assembled later and is easy to disassemble, repair and replace. Of course, in other embodiments, the fixing bracket 11 can also be directly embedded into the sofa chair body 1, etc.

[0029] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A sofa chair with rotatable armrests, comprising a sofa chair body and armrest units mounted on both sides of the sofa chair body; characterized in that: Each armrest unit on both sides includes a fixed bracket, a fixing component, a rotating connector, a shaft, a hinge joint, and an armrest. The fixed bracket is fixed to the main body of the sofa chair and has mounting holes. The fixing component is fixedly connected to the bottom of the mounting holes. The first end of the shaft is inserted into the mounting holes and connected to the fixing component through the rotating connector, so that the shaft can rotate relative to the fixing component. The first arm of the hinge joint is fixedly connected to the second end of the shaft, and the armrest is fixed to the second arm of the hinge joint.

2. The sofa chair with rotatable armrests according to claim 1, characterized in that: The rotating connector includes a first bolt, a nut, a first connecting piece, and a second connecting piece. Both the first and second connecting pieces are provided with connecting holes. The shank of the first bolt passes through the connecting holes of the first and second connecting pieces and is screwed and fixed to the nut, so that the first and second connecting pieces are restricted between the nut and the bolt and can rotate relative to the first bolt. The first connecting piece is fixedly connected to the fixing member, and the second connecting piece is fixedly connected to the shaft.

3. The sofa chair with rotatable armrests according to claim 2, characterized in that: A washer is also provided between the nut and the second connecting piece.

4. The sofa chair with rotatable armrests according to claim 2, characterized in that: The fixing member has a clearance hole, the first end of the shaft has a clearance slot, the nut of the first bolt is located in the clearance hole of the fixing member, the nut is located in the clearance slot of the shaft, and the first connecting piece and the second connecting piece are located between the fixing member and the shaft.

5. The sofa chair with rotatable armrests according to claim 4, characterized in that: The fastener and the first connecting piece are secured by a plurality of second bolts, and / or the shaft and the second connecting piece are secured by a plurality of third bolts.

6. The sofa chair with rotatable armrests according to claim 1, characterized in that: The fastener is a snap-fit ​​fastener with two opposing elastic snaps, which securely fasten the fastener to the bottom of the mounting hole via the two elastic snaps.

7. The sofa chair with rotatable armrests according to claim 1, characterized in that: The second end of the shaft has an upwardly protruding connecting plate, and the first arm of the hinge joint has a "U"-shaped opening. The connecting plate of the shaft is inserted into the "U"-shaped opening of the first arm of the hinge joint and locked by a fastener.

8. The sofa chair with rotatable armrests according to claim 1, characterized in that: The fixing bracket is formed by splicing and fixing two oppositely arranged fixing pieces. The two fixing pieces together form the mounting hole. The two fixing pieces are respectively attached to the side surface of the sofa chair body. The first fixing piece has an insertion post that inserts into the sofa chair body. The insertion post is provided with a screw hole and also includes a fourth bolt. The fourth bolt passes through the second fixing piece and is screwed into the screw hole of the insertion post, thereby fixing the fixing bracket to the sofa chair body.

9. The sofa chair with rotatable armrests according to claim 1, characterized in that: The main body of the sofa chair is filled with polystyrene foam.