Somatosensory chair and its skeleton

Abstract

The application discloses a somatosensory chair framework, which comprises a cushion framework and a backrest framework, and a base is arranged below the cushion framework; a universal joint, a first connecting rod mechanism and a power device are arranged between the cushion framework and the base; the cushion framework is connected with the base through the universal joint; the first connecting rod mechanism comprises a double-hinged connecting rod, a first shaft and a second shaft, and the first shaft and the first shaft are parallel to each other; a first spherical surface hinge structure is arranged between the double-hinged connecting rod and the first shaft; a second spherical surface hinge structure is arranged between the double-hinged connecting rod and the second shaft; the power device is arranged on the base and drives the first shaft to rotate around an axis parallel to the first shaft, and the second shaft is arranged on the cushion framework; or the power device is arranged on the cushion framework and drives the second shaft to rotate around an axis parallel to the second shaft, and the first shaft is arranged on the base. The application further discloses a somatosensory chair.

Description

Technical Field

[0001] This invention relates to a seat, specifically a motion-sensing seat and its frame. Background Technology

[0002] A seat is a type of seating furniture with a backrest, and some also have armrests. With the development of modern technology, more requirements have been placed on seats. For example, Chinese patent CN215643225U discloses a flight simulation seat and a flight simulator. The vertical motion device of this seat moves the seat frame up and down, thereby simulating the feeling of vibration and turbulence; the seat basin motion device continuously pushes against the seat cushion, thereby simulating the feeling of weightlessness and weightlessness; the backrest motion device continuously pushes against the back of the seat cushion, thereby simulating the feeling of acceleration and deceleration; and the backrest motion device drives the back part to move laterally in the width direction of the seat cushion, thereby simulating the feeling of left and right deviation and shaking. For example, Chinese patent CN209885212U discloses a multi-sensory seat based on virtual reality. This seat uses a six-degree-of-freedom support platform to allow the supporting platform to move and rotate around the axis in the X, Y, and Z directions in space, allowing users to experience displacement and dynamism. Moreover, due to the addition of environmental simulation components, it can simulate the environmental conditions of real-world scenarios, and can reflect environmental information such as temperature, humidity, and airflow, thereby improving the "realism" of the virtual simulation scenario and enhancing the user experience.

[0003] In summary, technological advancements have placed higher demands on the function and structure of seats, requiring them to not only provide comfort but also offer greater structural flexibility to enable different functions and meet diverse tactile requirements. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a haptic seat and its frame that not only meets the requirements of riding comfort, but also has more degrees of freedom to enhance the user's haptic experience.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] The present invention first proposes a somatosensory seat frame, including a seat cushion frame and a backrest frame, wherein a base is provided below the seat cushion frame;

[0007] A universal joint, a first linkage mechanism, and a power unit are provided between the seat cushion frame and the base; the seat cushion frame and the base are connected by the universal joint; the first linkage mechanism includes a double-hinged link, a first shaft, and a second shaft, the first shaft and the second shaft being parallel to each other; a first spherical hinge structure is provided between the double-hinged link and the first shaft; a second spherical hinge structure is provided between the double-hinged link and the second shaft;

[0008] The power unit is mounted on the base and drives the first shaft to rotate about an axis parallel to it, and the second shaft is mounted on the seat cushion frame; or the power unit is mounted on the seat cushion frame and drives the second shaft to rotate about an axis parallel to it, and the first shaft is mounted on the base.

[0009] Furthermore, the first spherical hinge structure includes a first ball head and a first ball sleeve that mates with the first ball head; the first ball head is disposed on the first shaft, and the first ball sleeve is disposed on the double-hinged connecting rod; or, the first ball head is disposed on the double-hinged connecting rod, and the first ball sleeve is disposed on the first shaft.

[0010] Furthermore, the second spherical hinge structure includes a second ball head and a second ball sleeve that mates with the second ball head; the second ball head is disposed on the second shaft, and the second ball sleeve is disposed on the double-hinged connecting rod; or, the second ball head is disposed on the double-hinged connecting rod, and the second ball sleeve is disposed on the second shaft.

[0011] Furthermore, the double-hinged connecting rod includes a first lead screw sleeve and a second lead screw sleeve located at both ends. A lead screw is provided between the first lead screw sleeve and the second lead screw sleeve. The lead screw is provided with two external threads with equal pitch but opposite helical directions. The two external threads are respectively threaded into the first lead screw sleeve and the second lead screw sleeve.

[0012] Furthermore, the front or middle part of the seat cushion frame is connected to the base via the universal joint; the first linkage mechanism is provided in two parts and is located on both sides of the rear end of the seat cushion frame respectively.

[0013] Furthermore, the seat frame includes a lower seat frame and an upper seat frame that slides with the lower seat frame, the universal joint is disposed between the lower seat frame and the base, and the power unit or the second shaft is disposed on the lower seat frame.

[0014] Furthermore, the lower frame of the seat cushion is provided with a linear slide rail, and the upper frame of the seat cushion is slidably mounted on the linear slide rail.

[0015] Furthermore, a second linkage mechanism is provided between the lower seat frame, the upper seat frame, and the backrest frame; the second linkage mechanism includes a connecting rod, the two ends of which are respectively hinged to the lower seat frame and the backrest frame, and the backrest frame is hinged to the upper seat frame.

[0016] Furthermore, the front end of the seat cushion frame is provided with a leg support assembly.

[0017] Furthermore, the backrest frame includes a lower backrest frame and an upper backrest frame, the lower backrest frame and the upper backrest frame are rotatably coupled, and a backrest rotation drive mechanism is provided between the lower backrest frame and the upper backrest frame for driving the upper backrest frame to rotate relative to the lower backrest frame.

[0018] The present invention also proposes a somatosensory seat, including the somatosensory seat frame as described above.

[0019] The beneficial effects of this invention are as follows:

[0020] The ergonomic seat frame of the present invention, by setting a universal joint and a first linkage mechanism between the seat cushion frame and the base, and by hingedly connecting the two ends of the double-hinged link to a first shaft and a second shaft respectively, when the power device drives the first shaft or the second shaft to rotate, the first shaft or the second shaft performs an eccentric rotational motion relative to the axis of the output shaft of the power device, thereby driving the seat cushion frame to swing up and down relative to the base around the universal joint; by setting the hinge structure between the double-hinged link and the first shaft and the second shaft to a first spherical hinge structure and a second spherical hinge structure respectively, the double-hinged link can swing relative to the first shaft and the second shaft, thereby causing the seat cushion frame to swing left and right relative to the base; that is, the ergonomic seat frame of the present invention, by setting the seat cushion frame and the backrest frame, can meet the requirements of riding comfort; under the action of the universal joint, the first linkage mechanism and the power device, the seat cushion frame and the base can move relative to each other in more directions, that is, the seat cushion frame and the base have more degrees of freedom, thereby improving the user's ergonomic experience.

[0021] The ergonomic seat frame of the present invention also has the following technical effects:

[0022] 1) By splitting the double hinge link into a first lead screw sleeve, a second lead screw sleeve, and a lead screw, the length of the double hinge link can be adjusted by rotating the lead screw, thereby adjusting the swing amplitude of the seat frame relative to the base;

[0023] 2) By setting the first linkage mechanism on both sides of the rear end of the seat cushion frame, the two double-hinged linkages, the first shaft and the second shaft form a parallelogram structure, which can provide stable support for the seat cushion frame and make the seat cushion frame maintain a stable posture during the swinging process, thereby further improving the riding comfort.

[0024] 3) By dividing the seat cushion frame into a lower seat cushion frame and an upper seat cushion frame, and allowing the lower and upper seat cushion frames to slide together, the fore-and-aft position of the upper seat cushion frame relative to the lower seat cushion frame can be adjusted. A second linkage mechanism is installed between the backrest support, the lower seat cushion frame, and the upper seat cushion frame. The linkage between the lower seat cushion frame and the backrest support provides stable support for the backrest support. When the upper seat cushion frame adjusts its fore-and-aft position relative to the lower seat cushion frame, the tilt angle of the backrest support is also adjusted in conjunction with the second linkage mechanism. That is, when the upper seat cushion frame moves forward relative to the lower seat cushion frame, the tilt angle of the backrest support increases; when the upper seat cushion frame moves backward relative to the lower seat cushion frame, the tilt angle of the backrest support decreases.

[0025] 4) The haptic chair of the present invention, by setting the backrest frame as a lower backrest frame and an upper backrest frame, and adjusting the angle by using a backrest rotation drive mechanism; by adjusting the front and rear position of the upper seat frame relative to the lower seat frame through sliding cooperation between the lower seat frame and the upper seat frame; and by setting a leg support assembly to support the legs; thus, the comfort of sitting in various application scenarios is greatly improved; at the same time, it realizes the intelligent adjustment of the overall seat's front and rear tilt and left and right swing by an additional four degrees of freedom, so that in terms of intelligent applications, through information connection and interaction between the seat and other intelligent devices, the intelligent movement of the seat can be realized, enhancing the immersive experience of users in entertainment and other aspects. Attached Figure Description

[0026] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration:

[0027] Figure 1 This is a schematic diagram of the structure of an embodiment of the somatosensory seat frame of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure when the double-hinged connecting rod is engaged with the first and second shafts.

[0029] Figure 3 for Figure 2 AA section view;

[0030] Figure 4 This is a perspective view of the motion-sensing seat frame in this embodiment;

[0031] Figure 5 for Figure 4 Detailed drawing B.

[0032] Explanation of reference numerals in the attached figures:

[0033] 10-Seat cushion frame; 11-Backrest frame; 12-Base; 13-Universal joint; 14-Power unit; 141-Connector; 15-Double hinge link; 16-First shaft; 17-Second shaft; 18-First ball head; 19-First ball sleeve; 20-Second ball head; 21-Second ball sleeve; 22-First lead screw sleeve; 23-Second lead screw sleeve; 24-Lead screw; 25-Lower seat cushion frame; 26-Upper seat cushion frame; 27-Linear slide rail; 28-Connecting rod; 29-Leg support assembly; 30-Lower backrest frame; 31-Upper backrest frame; 32-Screw; 33-Transmission component; 34-Motor; 35-Gearbox. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0035] The haptic seat in this embodiment includes a haptic seat frame. For example... Figure 1 The diagram shown is a structural schematic of an embodiment of the haptic seat frame of the present invention. The haptic seat frame of this embodiment includes a seat cushion frame 10 and a backrest frame 11, with a base 12 located below the seat cushion frame 10.

[0036] In this embodiment, a universal joint 13, a first linkage mechanism, and a power unit 14 are provided between the seat cushion frame 10 and the base 12. Specifically, the seat cushion frame 10 and the base 12 are connected by the universal joint 13. The first linkage mechanism includes a double-hinged link 15, a first shaft 16, and a second shaft 17, which are parallel to each other. In this embodiment, both the first shaft 16 and the second shaft 17 are located in the horizontal direction.

[0037] In this embodiment, a first spherical hinge structure is provided between the double-hinged connecting rod 15 and the first shaft 16. Specifically, the first spherical hinge structure includes a first ball head 18 and a first ball sleeve 19 that mates with the first ball head 18. In this embodiment, the first ball head 18 is disposed on the first shaft 16, and the first ball sleeve 19 is disposed on the double-hinged connecting rod 15. Of course, in some other embodiments, the first ball head 18 can also be disposed on the double-hinged connecting rod 15, and the first ball sleeve 19 can be disposed on the first shaft 16. The principle is the same, and will not be elaborated further. Specifically, the outer surface of the first ball head 18 is a first inner spherical surface, and the inner surface of the first ball sleeve 19 is a first outer spherical surface that mates with the first inner spherical surface. Through the spherical mating relationship between the first inner spherical surface and the first outer spherical surface, the double-hinged connecting rod 15 can rotate around the first shaft 16 and swing relative to the first shaft 16, that is, the degree of freedom of the engagement between the double-hinged connecting rod 15 and the first shaft 16 is higher.

[0038] In this embodiment, a second spherical hinge structure is provided between the double-hinged connecting rod 15 and the second shaft 17. Specifically, the second spherical hinge structure includes a second ball head 20 and a second ball sleeve 21 that mates with the second ball head 20. In this embodiment, the second ball head 20 is disposed on the second shaft 17, and the second ball sleeve 21 is disposed on the double-hinged connecting rod 15. Of course, in some other embodiments, the second ball head 20 can also be disposed on the double-hinged connecting rod 15, and the second ball sleeve 21 can be disposed on the second shaft 17; the principle is the same and will not be elaborated further. Specifically, the outer surface of the second ball head 20 is a second inner spherical surface, and the inner surface of the second ball sleeve 21 is a second outer spherical surface that mates with the second inner spherical surface. Through the spherical mating relationship between the second inner spherical surface and the second outer spherical surface, the double-hinged connecting rod 15 can rotate around the second shaft 17 and swing relative to the second shaft 17, that is, the degree of freedom of the engagement between the double-hinged connecting rod 15 and the second shaft 17 is higher.

[0039] In this embodiment, the power unit is mounted on the base 12 and drives the first shaft 16 to rotate around an axis parallel to it, while the second shaft is mounted on the seat cushion frame 10. Alternatively, in other embodiments, the power unit can be mounted on the seat cushion frame 10 and drive the second shaft 16 to rotate around an axis parallel to it, with the first shaft mounted on the base 12. Specifically, in this embodiment, the power unit 14 is a motor. A connector 141 is provided on the output shaft of the power unit 14, and the first shaft 16 is mounted on the connector 141. The first shaft 16 is parallel to and eccentrically positioned relative to the output shaft of the power unit. Thus, when the power unit 14 drives the connector 141 to rotate, it drives the first shaft 16 to rotate around the output shaft of the power unit 14, thereby driving the seat cushion frame 10 to move relative to the base 12.

[0040] In a preferred embodiment of this invention, the front or middle part of the seat cushion frame 10 is connected to the base 12 via a universal joint 13. Two first linkage mechanisms are provided, located on either side of the rear end of the seat cushion frame 10. In this embodiment, the middle part of the seat cushion frame 10 is connected to the base 12 via a universal joint 13. By providing first linkage mechanisms on both sides of the rear end of the seat cushion frame 10, the two double-hinged linkages 15, the first shaft 16, and the second shaft 17 form a parallelogram structure, which can provide stable support for the seat cushion frame 10 and maintain a stable posture during swaying, further improving riding comfort.

[0041] Furthermore, the double-hinged connecting rod 15 in this embodiment includes a first lead screw sleeve 22 and a second lead screw sleeve 23 located at both ends. A lead screw 24 is provided between the first lead screw sleeve 22 and the second lead screw sleeve 23. The lead screw 24 is provided with two external threads with equal pitch but opposite helical directions. The two external threads are respectively threaded with the first lead screw sleeve 22 and the second lead screw sleeve 23. Rotating the lead screw can adjust the length of the double-hinged connecting rod 15, thereby adjusting the swing amplitude of the seat frame 10 relative to the base 12.

[0042] Furthermore, the seat cushion frame 10 of this embodiment includes a lower seat cushion frame 25 and an upper seat cushion frame 26 that slides with the lower seat cushion frame 25. A universal joint 13 is disposed between the lower seat cushion frame 25 and the base 12, and a power unit or second shaft 17 is disposed on the lower seat cushion frame 25. By splitting the seat cushion frame 10 into a lower seat cushion frame 25 and an upper seat cushion frame 26, and making the lower seat cushion frame 25 and the upper seat cushion frame 26 slide with each other, the fore-and-aft position of the upper seat cushion frame 26 relative to the lower seat cushion frame 25 can be adjusted. In this embodiment, the second shaft 17 is disposed on the lower seat cushion frame 25. Specifically, the lower seat cushion frame 25 is provided with a linear slide rail 27, and the upper seat cushion frame 26 is slidably mounted on the linear slide rail 27. In this embodiment, a second linkage mechanism is provided between the lower seat cushion frame 25, the upper seat cushion frame 26, and the backrest frame 11. Specifically, the second linkage mechanism in this embodiment includes a link 28, the two ends of which are hinged to the lower seat frame 25 and the backrest frame 11, respectively. The backrest frame 11 is hinged to the upper seat frame 26. Specifically, the link 28 in this embodiment is rotatably coupled to a second shaft 17 mounted on the lower seat frame 25. By providing a second linkage mechanism between the backrest support, the lower seat frame, and the upper seat frame, the link between the lower seat frame and the backrest support provides stable support for the backrest support. When the upper seat frame is adjusted forward or backward relative to the lower seat frame, the tilt angle of the backrest support is also adjusted in conjunction with the second linkage mechanism. That is, when the upper seat frame moves forward relative to the lower seat frame, the tilt angle of the backrest support increases; when the upper seat frame moves backward relative to the lower seat frame, the tilt angle of the backrest support decreases.

[0043] Furthermore, in a preferred embodiment of this example, the front end of the seat cushion upper frame 26 is provided with a leg support assembly 29 to improve comfort.

[0044] Furthermore, the backrest frame 11 in this embodiment includes a lower backrest frame 30 and an upper backrest frame 31, which are rotatably connected. A backrest rotation drive mechanism is provided between the lower backrest frame 30 and the upper backrest frame 31 to drive the upper backrest frame 31 to rotate relative to the lower backrest frame 30. By adjusting the rotation angle of the upper backrest frame 31 relative to the lower backrest frame 30, the head and shoulders of the human body are better supported, improving comfort. The backrest rotation drive mechanism in this embodiment includes a power mechanism mounted on the lower backrest frame 30, a screw 32 driven by the power mechanism, and a transmission member 33 threadedly engaged with the screw 32. The transmission member 33 is hinged to the upper backrest frame 31. The power mechanism in this embodiment includes a motor 34 and a gearbox 35 fixedly mounted on the lower backrest frame 30, and the screw 32 is driven by the output shaft of the gearbox 35.

[0045] The ergonomic seat frame of this embodiment, by setting a universal joint and a first linkage mechanism between the seat cushion frame and the base, and by hingedly connecting the two ends of the double-hinged link to the first shaft and the second shaft respectively, when the power device drives the first shaft or the second shaft to rotate, the first shaft or the second shaft performs an eccentric rotational motion relative to the axis of the output shaft of the power device, thereby driving the seat cushion frame to swing up and down relative to the base around the universal joint; by setting the hinge structure between the double-hinged link and the first shaft and the second shaft to a first spherical hinge structure and a second spherical hinge structure respectively, the double-hinged link can swing relative to the first shaft and the second shaft, thereby causing the seat cushion frame to swing left and right relative to the base; that is, the ergonomic seat frame of this embodiment, by setting the seat cushion frame and the backrest frame, can meet the requirements of riding comfort; under the action of the universal joint, the first linkage mechanism and the power device, the seat cushion frame and the base can move relative to each other in more directions, that is, the seat cushion frame and the base have more degrees of freedom, thereby improving the user's ergonomic experience.

[0046] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A motion-sensing seat frame, comprising a seat cushion frame (10) and a backrest frame (11), characterized in that: The seat frame (10) is provided with a base (12) below it. A universal joint (13), a first linkage mechanism, and a power device (14) are provided between the seat frame (10) and the base (12). The first linkage mechanism is provided on both sides of the rear end of the seat frame (10). The seat frame (10) and the base (12) are connected by the universal joint (13). The first linkage mechanism includes a double-hinged link (15), a first shaft (16), and a second shaft (17). The first shaft (16) and the second shaft (17) are parallel to each other, and the two double-hinged links (15), the first shaft (16), and the second shaft (17) form a parallelogram structure. A first spherical hinge structure is provided between the double-hinged link (15) and the first shaft (16). A second spherical hinge structure is provided between the double-hinged link (15) and the second shaft (17). The power unit is mounted on the base (12) and drives the first shaft (16) to rotate about an axis parallel to it, and the second shaft is mounted on the seat frame (10); or the power unit is mounted on the seat frame (10) and drives the second shaft (17) to rotate about an axis parallel to it, and the first shaft is mounted on the base (12). The double-hinged connecting rod (15) includes a first lead screw sleeve (22) and a second lead screw sleeve (23) located at both ends. A lead screw (24) is provided between the first lead screw sleeve (22) and the second lead screw sleeve (23). The lead screw (24) is provided with two external threads with equal pitch but opposite helical directions. The two external threads are respectively threaded with the first lead screw sleeve (22) and the second lead screw sleeve (23). Rotating the lead screw (24) adjusts the length of the double-hinged connecting rod (15), thereby adjusting the swing amplitude of the seat frame (10) relative to the base (12). The seat frame (10) includes a lower seat frame (25) and an upper seat frame (26) that slides with the lower seat frame (25). The universal joint (13) is disposed between the lower seat frame (25) and the base (12). The power unit or second shaft (17) is disposed on the lower seat frame (25). A second linkage mechanism is provided between the lower seat frame (25), the upper seat frame (26), and the backrest frame (11); the second linkage mechanism includes a link (28), the two ends of which are hinged to the lower seat frame (25) and the backrest frame (11) respectively, and the backrest frame (11) is hinged to the upper seat frame (26).

2. The haptic seat frame according to claim 1, characterized in that: The first spherical hinge structure includes a first ball head (18) and a first ball sleeve (19) that mates with the first ball head (18); the first ball head (18) is disposed on the first shaft (16), and the first ball sleeve (19) is disposed on the double hinge link (15); or, the first ball head (18) is disposed on the double hinge link (15), and the first ball sleeve (19) is disposed on the first shaft (16); The second spherical hinge structure includes a second ball head (20) and a second ball sleeve (21) that cooperates with the second ball head (20); the second ball head (20) is disposed on the second shaft (17), and the second ball sleeve (21) is disposed on the double hinge link (15); or, the second ball head (20) is disposed on the double hinge link (15), and the second ball sleeve (21) is disposed on the second shaft (17).

3. The haptic seat frame according to claim 1, characterized in that: The front or middle part of the seat frame (10) is connected to the base (12) through the universal joint (13); the first linkage mechanism is provided in two parts and is located on both sides of the rear end of the seat frame (10).

4. The haptic seat frame according to claim 1, characterized in that: The lower frame (25) of the seat cushion is provided with a linear slide rail (27), and the upper frame (26) of the seat cushion is slidably mounted on the linear slide rail (27).

5. The haptic seat frame according to claim 1, characterized in that: The front end of the seat cushion upper frame (26) is provided with a leg support assembly (29).

6. The haptic seat frame according to claim 1, characterized in that: The backrest frame (11) includes a lower backrest frame (30) and an upper backrest frame (31). The lower backrest frame (30) and the upper backrest frame (31) are rotatably coupled. A backrest rotation drive mechanism is provided between the lower backrest frame (30) and the upper backrest frame (31) for driving the upper backrest frame (31) to rotate relative to the lower backrest frame (30).

7. A motion-sensing seat, characterized in that: Including the haptic seat frame as described in any one of claims 1-6.

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