Comfortable leisure chair frame

By introducing a leg connection structure and a linkage structure into the chair frame of the lounge chair, the backrest and footrest can be adjusted synchronously, solving the problem of cumbersome adjustment in traditional lounge chairs and improving comfort and ease of operation.

CN224155353UActive Publication Date: 2026-04-24FOSHAN MINGCHUANG FURNITURE ACCESSORIES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN MINGCHUANG FURNITURE ACCESSORIES CO LTD
Filing Date
2025-05-26
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The backrest and footrest adjustments of traditional lounge chairs are independent and cumbersome, making it difficult to simultaneously meet user needs and affecting comfort.

Method used

Design a comfortable lounge chair frame that uses a leg connection structure, a linkage structure, and an electric push rod to achieve synchronous adjustment of the backrest support and footrest support, simplifying operation.

Benefits of technology

Users can adjust the backrest and footrest to the appropriate position at the same time, improving comfort and simplifying the operation process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a comfortable leisure chair frame, which comprises a chair seat bracket, a chair leg connecting structure, a backrest bracket, a foot pad bracket and a connecting rod structure, the chair leg connecting structure is connected with the chair seat bracket, the backrest bracket is arranged on the chair seat bracket, the end part of the foot pad bracket is rotatably connected with the chair seat bracket, and the connecting rod structure is arranged on the foot pad bracket. The connecting rod structure comprises a first connecting rod, a second connecting rod and a third connecting rod, one end of the first connecting rod is rotatably connected with the end of the backrest support, the other end of the first connecting rod is rotatably connected with the second connecting rod, one end of the second connecting rod is rotatably connected with the seat support, and the other end of the second connecting rod is rotatably connected with one end of the third connecting rod. And the other end of the third connecting rod is rotatably connected with the foot pad bracket. A user can always keep the backrest bracket and the foot pad bracket in proper positions during adjustment, that is, the user can simultaneously adjust the backrest or the foot pad correspondingly in the leisure chair, so that higher comfort is obtained, and the operation is simple and quick.
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Description

Technical Field

[0001] This utility model relates to the field of chair frame design for leisure chairs, and in particular to a comfortable leisure chair frame. Background Technology

[0002] A lounge chair is a type of seating designed primarily for comfort, widely used in homes, outdoors, and office rest areas. The chair frame is the core structure that supports and secures the lounge chair, directly affecting its stability and comfort.

[0003] Traditional lounge chairs are mostly non-adjustable, meaning their frames are also non-adjustable. However, due to the different needs of users, non-adjustable lounge chairs often cannot effectively adapt to different body types, resulting in lower comfort levels. With technological advancements, most modern lounge chairs now feature adjustable backrests, meaning the backrest portion of the chair frame is also adjustable.

[0004] In practice, it was found that when the backrest tilt angle is adjusted too far, the user's feet will dangle unsupported while resting on the chair, resulting in low comfort. Therefore, some lounge chairs now include footrests. However, many lounge chair footrests are not adjustable, making it difficult to adapt to different backrest positions. Even when the footrests are adjustable, their adjustment is often independent of the backrest adjustment. Users need to adjust both the backrest and footrest simultaneously to their needs. This translates to difficulties and cumbersome adjustments to the corresponding structures of the chair frame, which contradicts the concept of lounge chair comfort. Utility Model Content

[0005] The purpose of this utility model is to provide a comfortable and relaxing chair frame that can solve one or more of the above-mentioned problems.

[0006] According to one aspect of this utility model, a comfortable leisure chair frame is provided, including a seat support, a leg connecting structure, a backrest support, a foot pad support, and a connecting rod structure.

[0007] The chair leg connecting structure is connected to the chair seat frame, the backrest frame is mounted on the chair seat frame, and the end of the foot pad frame is rotatably connected to the chair seat frame.

[0008] The linkage structure includes a first link, a second link, and a third link. One end of the first link is rotatably connected to the end of the backrest support, and the other end is rotatably connected to the second link. One end of the second link is rotatably connected to the seat support, and the other end is rotatably connected to one end of the third link. The other end of the third link is rotatably connected to the footrest support.

[0009] The beneficial effects of this utility model are as follows: This utility model can be used in a lounge chair, wherein a seat can be installed on the seat support, a backrest can be installed on the backrest support, and a footrest can be installed on the footrest support, while the chair leg connecting structure can be used to connect with the chair legs. In this utility model, both the backrest support and the footrest support can rotate to a certain extent relative to the seat support, and during the movement of the backrest support or the footrest support, the movement of the footrest support or the backrest support can be driven accordingly through the linkage structure, that is, the positions of the backrest support and the footrest support can be adjusted simultaneously. By pre-setting the relative positions of the backrest support and the footrest support, the user can always keep the backrest support and the footrest support in an appropriate position during adjustment. Accordingly, in a lounge chair, the user can adjust the backrest or the footrest at the same time to obtain a high level of comfort, and the operation is simple and quick.

[0010] In some embodiments, the seat support includes seat blocks and connecting strips, wherein there are two seat blocks connected together by the connecting strips.

[0011] In some embodiments, the seat support includes two armrest blocks, each connected to one of the two seat supports. Armrests can be mounted on the armrest blocks, thus enabling the armrest support to support the armrests of the lounge chair.

[0012] In some embodiments, the chair leg connecting structure includes connecting blocks and connecting posts. There are two connecting blocks connected together by the connecting posts. Each connecting post has a protrusion with a connecting hole. The protrusion facilitates connection to the chair leg, while the connecting hole facilitates the installation of screws during connection.

[0013] In some embodiments, the backrest support includes a backrest block and a connecting strip. There are two backrest blocks, which are connected by the connecting strip and are respectively mounted on two seat blocks.

[0014] In some embodiments, a fourth link is included, and the backrest support block has a side protrusion. The side protrusion is rotatably connected to one end of the fourth link, and the other end of the fourth link is rotatably connected to the seat support. This configuration limits the range of rotation of the backrest support block to prevent its movement from exceeding the user's expectations.

[0015] In some embodiments, the present invention further includes a stop block mounted on the seat support, wherein the foot pad support has a limiting groove, and the stop block is embedded in the limiting groove. The stop block and the limiting groove limit the rotation range of the foot pad support, preventing the foot pad support from moving beyond the user's expectations.

[0016] In some embodiments, the present invention further includes an electric push rod and a drive rod, wherein the drive rod is connected to a third connecting rod, and the electric push rod is connected to the seat support and the third connecting rod. By providing an electric push rod and a drive rod, the positions of the backrest support and footrest support can be adjusted by applying force through the electric push rod, eliminating the need for manual force application. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a comfortable leisure chair frame according to one embodiment of the present invention.

[0018] Figure 2 for Figure 1 A cross-sectional view of the frame of a comfortable lounge chair at point AA, according to one embodiment.

[0019] Figure 3 This is a structural schematic diagram of a comfortable leisure chair frame according to one embodiment of the present invention.

[0020] Figure 4 for Figure 3 A cross-sectional view of the frame of a comfortable lounge chair at point BB, according to one embodiment.

[0021] In the diagram: 1. Seat support, 2. Leg connection structure, 3. Backrest support, 4. Foot pad support, 5. Linkage structure, 6. Stop block, 7. Electric push rod, 8. Drive rod, 11. Seat support block, 12. Connecting strip, 13. Armrest support block, 21. Connecting block, 22. Connecting column, 221. Protrusion, 222. Connecting hole, 31. Backrest support block, 32. Connecting strip, 311. Side protrusion, 41. Limiting groove, 51. First link, 52. Second link, 53. Third link, 54. Fourth link. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] Example 1

[0024] refer to Figure 1 and Figure 2 The present invention relates to a comfortable leisure chair frame, comprising a seat support 1, a leg connecting structure 2, a backrest support 3, a foot pad support 4, and a connecting rod structure 5.

[0025] In this embodiment, all the main components in the seat support 1, the leg connecting structure 2, the backrest support 3, the foot pad support 4, and the connecting rod structure 5 can be stamped parts to ensure the production efficiency and quality of this comfortable leisure chair frame.

[0026] The chair seat support 1 includes two chair seat blocks 11 and two connecting strips 12. The two chair seat blocks 11 are arranged in parallel and connected to each other by the connecting strips 12. Specifically, one end of the connecting strip 12 is fixedly connected to one chair seat block 11 by welding, and the other end is fixedly connected to the other chair seat block 11 by welding. In order to ensure the reliability of the connection, there can be multiple connecting strips 12. In this embodiment, two connecting strips 12 are preferred.

[0027] The chair seat support 1 includes two armrest support blocks 13, which are respectively fixedly connected to two chair seat support blocks 11 by welding.

[0028] The chair leg connecting structure 2 includes connecting blocks 21 and connecting posts 22. There are two connecting blocks 21, which are connected to each other by the connecting posts 22. Specifically, one end of the connecting post 22 is fixedly connected to one connecting block 21 by welding, and the other end is fixedly connected to the other connecting block 21 by welding. A protrusion 221 is provided in the middle of the connecting post 22, and a connecting hole 222 is provided on the protrusion 221. One end of each of the two connecting blocks 21 is respectively connected to the two chair seat support blocks 11 one by one by stepped screws.

[0029] The backrest support 3 includes backrest blocks 31 and connecting strips 32. There are two backrest blocks 31, which are connected by connecting strips 32. Specifically, one end of the connecting strip 32 is fixedly connected to one backrest block 31 by welding, and the other end is fixedly connected to the other backrest block 31 by welding. There can be multiple connecting strips 32. In this embodiment, three connecting strips 32 are preferred.

[0030] Two backrest support blocks 31 are rotatably connected to two seat support blocks 11 by step screws, so that the backrest bracket 3 can be rotatably installed on the seat bracket 1.

[0031] Preferably, there are two foot pad brackets 4, and the ends of the two foot pad brackets 4 are rotatably connected to the seat support block 11 of the seat support 1 by pins.

[0032] The linkage structure 5 includes a first linkage 51, a second linkage 52, and a third linkage 53. There can also be two linkage structures 5, each connecting to two backrest supports 31, two seat supports 11, and two footrest supports 4. Specifically, in each linkage structure 5, one end of the first linkage 51 is rotatably connected to the end of the backrest support 31 of the backrest support 3 via a stepped screw; the other end of the first linkage 51 is riveted to the second linkage 52, allowing relative rotation between the first and second linkages. One end of the second linkage 52 is rotatably connected to the seat support 11 of the seat support 1 via a stepped screw; the other end of the second linkage 52 is riveted to one end of the third linkage 53, allowing relative rotation between the third and second linkages. The other end of the third linkage 53 is riveted to the footrest support 4, allowing relative rotation between the third and third linkages.

[0033] This comfortable lounge chair frame also includes a fourth link 54. Preferably, there are two fourth links 54. The backrest support block 31 has a side protrusion 311 on its side. The side protrusion 311 on the two backrest support blocks 31 is rotatably connected to one end of the two fourth links 54 by step screws. The other end of the two fourth links is rotatably connected to two seat support blocks 11 on the seat bracket 1 by step screws.

[0034] This comfortable lounge chair frame also includes a stop block 6. Preferably, there are two stop blocks 6, which are fixedly installed on the two seat support blocks 11 of the seat bracket 1. The two foot pad brackets 4 are respectively provided with limiting grooves 41, and the two stop blocks 6 are respectively embedded in the two limiting grooves 41. The stop blocks 6 can be used to limit the rotation range of the foot pad brackets 4, so that after the foot pad brackets 4 rotate a certain distance, the stop blocks 6 can abut against the limiting grooves 41 to prevent the foot pad brackets 4 from continuing to rotate.

[0035] This comfortable lounge chair frame can be used in lounge chairs. The seat support 1 can be fixed with a seat by screws, the backrest support 3 can be fixed with a backrest by screws, the foot pad support 4 can be fixed with a foot pad by screws, and the chair leg connecting structure 2 can be used to connect with the chair legs. Preferably, the chair legs can be fixedly connected to the protrusion 221 by screws, and the screws can be provided on the connecting hole 222.

[0036] When the position of the backrest and footrest of the lounge chair needs to be adjusted, the user can apply force to rotate the backrest support 3. At the same time, the backrest support 3 can drive the footrest support 4 to move through the linkage structure 5. Specifically, when the backrest support 3 rotates, it can drive the first linkage 51 to swing. The swing of the first linkage 51 can drive the second linkage 52 to swing. The swing of the second linkage 52 can drive the third linkage 53 to swing. Finally, the swing of the third linkage 53 can drive the footrest support 4 to swing, thereby moving the backrest on the backrest support 3 and the footrest on the footrest support 4.

[0037] By pre-setting the relative positions of the backrest support 3 and the footrest support 4, the user can ensure that both the backrest support 3 and the footrest support 4 are in the appropriate position during adjustment. In other words, in a lounge chair, the user can adjust the backrest or the footrest at the same time to obtain a high level of comfort, and the operation is simple and quick.

[0038] Example 2

[0039] refer to Figure 3 and Figure 4 The present invention relates to a comfortable leisure chair frame, comprising a seat support 1, a leg connecting structure 2, a backrest support 3, a foot pad support 4, and a connecting rod structure 5.

[0040] In this embodiment, all the main components in the seat support 1, the leg connecting structure 2, the backrest support 3, the foot pad support 4, and the connecting rod structure 5 can be stamped parts to ensure the production efficiency and quality of this comfortable leisure chair frame.

[0041] The chair seat support 1 includes two chair seat blocks 11 and two connecting strips 12. The two chair seat blocks 11 are arranged in parallel and connected to each other by the connecting strips 12. Specifically, one end of the connecting strip 12 is fixedly connected to one chair seat block 11 by welding, and the other end is fixedly connected to the other chair seat block 11 by welding. In order to ensure the reliability of the connection, there can be multiple connecting strips 12. In this embodiment, two connecting strips 12 are preferred.

[0042] The chair seat support 1 includes two armrest support blocks 13, which are respectively fixedly connected to two chair seat support blocks 11 by welding.

[0043] The chair leg connecting structure 2 includes connecting blocks 21 and connecting posts 22. There are two connecting blocks 21, which are connected to each other by the connecting posts 22. Specifically, one end of the connecting post 22 is fixedly connected to one connecting block 21 by welding, and the other end is fixedly connected to the other connecting block 21 by welding. A protrusion 221 is provided in the middle of the connecting post 22, and a connecting hole 222 is provided on the protrusion 221. One end of each of the two connecting blocks 21 is respectively connected to the two chair seat support blocks 11 one by one by stepped screws.

[0044] The backrest support 3 includes backrest blocks 31 and connecting strips 32. There are two backrest blocks 31, which are connected by connecting strips 32. Specifically, one end of the connecting strip 32 is fixedly connected to one backrest block 31 by welding, and the other end is fixedly connected to the other backrest block 31 by welding. There can be multiple connecting strips 32. In this embodiment, three connecting strips 32 are preferred.

[0045] Two backrest support blocks 31 are rotatably connected to two seat support blocks 11 by step screws, so that the backrest bracket 3 can be rotatably installed on the seat bracket 1.

[0046] Preferably, there are two foot pad brackets 4, and the ends of the two foot pad brackets 4 are rotatably connected to the seat support block 11 of the seat support 1 by pins.

[0047] The linkage structure 5 includes a first linkage 51, a second linkage 52, and a third linkage 53. There can also be two linkage structures 5, each connecting to two backrest supports 31, two seat supports 11, and two footrest supports 4. Specifically, in each linkage structure 5, one end of the first linkage 51 is rotatably connected to the end of the backrest support 31 of the backrest support 3 via a stepped screw; the other end of the first linkage 51 is riveted to the second linkage 52, allowing relative rotation between the first and second linkages. One end of the second linkage 52 is rotatably connected to the seat support 11 of the seat support 1 via a stepped screw; the other end of the second linkage 52 is riveted to one end of the third linkage 53, allowing relative rotation between the third and second linkages. The other end of the third linkage 53 is riveted to the footrest support 4, allowing relative rotation between the third and third linkages.

[0048] This comfortable lounge chair frame also includes a fourth link 54. Preferably, there are two fourth links 54. The backrest support block 31 has a side protrusion 311 on its side. The side protrusion 311 on the two backrest support blocks 31 is rotatably connected to one end of the two fourth links 54 by step screws. The other end of the two fourth links is rotatably connected to two seat support blocks 11 on the seat bracket 1 by step screws.

[0049] This comfortable lounge chair frame also includes a stop block 6. Preferably, there are two stop blocks 6, which are respectively fixedly installed on the two seat support blocks 11 of the seat bracket 1 by screws. The two foot pad brackets 4 are respectively provided with limiting grooves 41, and the two stop blocks 6 are respectively embedded in the two limiting grooves 41. The stop blocks 6 can be used to limit the rotation range of the foot pad brackets 4, so that after the foot pad brackets 4 rotate a certain distance, the stop blocks 6 can abut against the limiting grooves 41 to prevent the foot pad brackets 4 from continuing to rotate.

[0050] The frame of this comfortable lounge chair also includes an electric push rod 7 and a drive rod 8. The drive rod 8 is fixedly connected to the third link 53 by screws. The body of the electric push rod 7 is connected to the seat support 1 by a pin. The piston rod of the electric push rod 7 is connected to the third link 53 by a pin.

[0051] This comfortable lounge chair frame can be used in lounge chairs. The seat support 1 can be fixed with a seat by screws, the backrest support 3 can be fixed with a backrest by screws, the foot pad support 4 can be fixed with a foot pad by screws, and the chair leg connecting structure 2 can be used to connect with the chair legs. Preferably, the chair legs can be fixedly connected to the protrusion 221 by screws, and the screws can be provided on the connecting hole 222.

[0052] When the position of the backrest and footrest of the lounge chair needs to be adjusted, the backrest support 3 and footrest support 4 can be moved by driving the electric push rod 7. Specifically, the electric push rod 7 can drive the third link 53 to swing, the swing of the third link 53 can drive the footrest support 4 to swing, and at the same time, the movement of the third link 53 can drive the second link 52 to swing, the swing of the second link 52 can drive the first link 51 to swing, and the backrest support 3 connected to the first link 51 moves accordingly, thereby moving the backrest set on the backrest support 3 and the footrest set on the footrest support 4.

[0053] By pre-setting the relative positions of the backrest support 3 and the footrest support 4, the user can ensure that both the backrest support 3 and the footrest support 4 are in the appropriate position during adjustment. In other words, in a lounge chair, the user can adjust the backrest or the footrest at the same time to obtain a high level of comfort, and the operation is simple and quick.

[0054] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A comfortable lounge chair frame, characterized in that, This includes the seat frame, leg connection structure, backrest frame, foot pad frame, and linkage structure. The chair leg connecting structure is connected to the chair seat frame, the backrest frame is mounted on the chair seat frame, and the end of the foot pad frame is rotatably connected to the chair seat frame. The linkage structure includes a first link, a second link, and a third link. One end of the first link is rotatably connected to the end of the backrest support, and the other end is rotatably connected to the second link. One end of the second link is rotatably connected to the seat support, and the other end is rotatably connected to one end of the third link. The other end of the third link is rotatably connected to the footrest support.

2. The comfortable lounge chair frame according to claim 1, characterized in that, The chair seat support includes two seat blocks and a connecting strip. The two seat blocks are connected by the connecting strip.

3. The comfortable lounge chair frame according to claim 2, characterized in that, The chair seat support includes two armrest blocks, each of which is connected to one of the two chair seat blocks.

4. The comfortable lounge chair frame according to claim 2, characterized in that, The chair leg connecting structure includes connecting blocks and connecting columns. There are two connecting blocks, which are connected by connecting columns. The connecting columns are provided with protrusions, and the protrusions are provided with connecting holes.

5. The comfortable lounge chair frame according to claim 2, characterized in that, The backrest support includes backrest blocks and connecting strips. There are two backrest blocks, which are connected by the connecting strips. The two backrest blocks are respectively installed on two seat blocks.

6. The comfortable lounge chair frame according to claim 5, characterized in that, Includes a fourth link, the backrest support block is provided with a side protrusion, the side protrusion is rotatably connected to one end of the fourth link, and the other end of the fourth link is rotatably connected to the seat support.

7. The comfortable lounge chair frame according to claim 1, characterized in that, The device includes a stop block, which is mounted on the seat support. The foot pad support has a limiting groove, and the stop block is embedded in the limiting groove.

8. The comfortable lounge chair frame according to claim 1, characterized in that, It includes an electric push rod and a drive rod, the drive rod being connected to a third link, the electric push rod being connected to a seat support and also connected to the third link.