Seat proportion adjustment mechanism and automobile

Abstract

The application relates to the technical field of automobiles, and particularly discloses a seat proportional adjusting mechanism, which comprises a seat body and a proportional adjusting linkage assembly, wherein opposite ends of the bottom of the seat body are respectively rotationally provided with turnover auxiliary devices and supporting parts, the supporting parts always have a m-direction torque relative to the seat body; the proportional adjusting linkage assembly is arranged in the seat body, and the proportional adjusting linkage assembly is connected with the turnover auxiliary devices through a cable; and the proportional adjusting linkage assembly is integrally connected with the supporting parts or connected with the supporting parts through a cable. The application further provides an automobile which comprises the above seat proportional adjusting mechanism. The proportional adjusting linkage assembly can realize proportional adjusting of the supporting parts, so that the supporting parts can be folded and unfolded in a short distance or angle.

Description

Technical Field

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[0001] The present invention relates to the technical field of automobiles, and particularly to a seat proportional adjustment mechanism and an automobile. Background Art

[0002] Currently, in the prior art, in order to further improve the utilization rate of the interior space of a vehicle, the current automotive industry is gradually designing the third-row seat of an automobile to be foldable and storable. The front support component of the seat can be unfolded or folded and stored along with the folding and storage or use of the seat, and realizes linkage during the folding and storage process. However, this technology can only achieve equal-proportion folding and storage. When it is necessary to achieve faster or slower folding and storage of the support component, it does not have adjustability, and the support component cannot be folded and unfolded within a shorter distance or angle, thus failing to meet the needs of users. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: how to perform variable-proportion adjustment on the seat support component so as to enable the support component to be folded and unfolded within a shorter distance or angle.

[0004] To solve the above technical problem, the present invention provides a seat proportional adjustment mechanism, including:

[0005] A seat body, with a flipping auxiliary device and a support component rotatably provided at opposite ends of the bottom of the seat body respectively, and the support component always has a torque along the m direction relative to the seat body; and

[0006] A proportional adjustment linkage component, which is provided inside the seat body, and the proportional adjustment linkage component is connected to the flipping auxiliary device through a cable, and the proportional adjustment linkage component is integrally connected to the support component or connected through a cable.

[0007] Further preferably, the proportional adjustment linkage component includes:

[0008] A first bracket, which is provided inside the seat body, and a first rotating shaft and a second rotating shaft are provided on the first bracket;

[0009] A first driving gear, which is provided on the first rotating shaft, and a first cable groove is formed in the circumferential direction of the first driving gear, and a first cable connected to the flipping auxiliary device is wound in the first cable groove, and the first driving gear always has a torque in the M1 direction; and

[0010] A first driven gear, which is provided on the second rotating shaft, the first driven gear is meshed and connected to the first driving gear, and a second cable groove is formed in the circumferential direction of the first driven gear, and a second cable connected to the support component is wound in the second cable groove.

[0011] More preferably, both the first driving gear and the first driven gear are non-full gear structures, and the first driving gear and the first driven gear are partially meshed.

[0012] More preferably, the first driving gear includes a first smooth section and a first active meshing tooth section, and the first driven gear includes a first driven meshing tooth section, a first limiting arc and a second limiting arc, with the first limiting arc and the second limiting arc respectively disposed on both sides of the first driven meshing tooth section;

[0013] The first active meshing tooth segment meshes with the first driven meshing tooth segment, and the first limiting arc and the second limiting arc cooperate with the first smooth surface segment.

[0014] More preferably, the first driven gear always has torque in the M2 direction; wherein the M2 direction is opposite to the M1 direction.

[0015] More preferably, the proportional adjustment linkage component is integrally connected to the support component, and the proportional adjustment linkage component includes:

[0016] A third bracket is provided on the seat body, and a fourth pivot and a fifth pivot are provided on the third bracket. The support component is installed on the fifth pivot.

[0017] A second driving gear, disposed on the fourth rotating shaft, has a fifth cable wound around its circumferential wall, connected to the tilting auxiliary device. The second driving gear always possesses torque along the M4 direction; and

[0018] The second driven gear is located on the fifth rotating shaft, and the second driven gear and the second driving gear are in a partially meshed connection.

[0019] More preferably, the second driving gear includes a second driving meshing tooth segment and a second smooth surface segment, and the second driven gear includes a second driven meshing tooth segment, a third limiting arc and a fourth limiting arc. The second driven meshing tooth segment meshes with the second driving meshing tooth segment, and the third limiting arc and the fourth limiting arc can cooperate with the second smooth surface segment.

[0020] Compared with the prior art, the seat ratio adjustment mechanism provided by the present invention has the following advantages: The present invention has a simple structure. When the seat body rotates around the flipping auxiliary device for storage, the linkage of the support component can be realized through the ratio adjustment linkage component, thereby realizing the variable ratio adjustment of the support component, so that the support component can be stored and unfolded within a short distance or angle.

[0021] The present invention also provides an automobile, including the aforementioned seat ratio adjustment mechanism. Attached Figure Description

[0022] Figure 1 These are schematic diagrams of the seat structure in Embodiments 1 and 2 of the present invention.

[0023] Figure 2 This is a demonstration diagram of the seat storage process of the present invention.

[0024] Figure 3 This is a schematic diagram of the proportional adjustment linkage component described in Embodiment 1 of the present invention.

[0025] Figure 4 This is a cross-sectional view of Embodiment 1 of the present invention.

[0026] Figure 5 This is a schematic diagram of the seat structure of Embodiment 3 of the present invention.

[0027] Figure 6 This is a schematic diagram of the proportional adjustment linkage component described in Embodiment 3 of the present invention.

[0028] Figure 7 This is a partial schematic diagram of Embodiment 3 of the present invention.

[0029] Figure 8 This is a cross-sectional view in Embodiment 3 of the present invention.

[0030] In the picture:

[0031] 10. Proportional adjustment linkage component;

[0032] 101. First support; 102. First rotating shaft; 103. Second rotating shaft; 104. First driving gear; 1041. First smooth section; 1042. First active meshing tooth section; 1043. First cable groove; 1044. First elastic element position; 105. First driven gear; 1051. First limiting arc; 1052. Second limiting arc; 1053. First driven meshing tooth section; 1054. Second cable groove; 1055. Second elastic element position; 106. First cable; 107. First cable sleeve; 108. Second cable; 109. Second cable sleeve;

[0033] 121. Third support; 122. Fourth rotating shaft; 123. Second driving gear; 1231. Second driving meshing tooth section; 1232. Second smooth section; 1233. Fifth cable groove; 1234. Fourth elastic element position; 124. Fifth rotating shaft; 125. Second driven gear; 1251. Second driven meshing tooth section; 1252. Third limiting arc; 1253. Fourth limiting arc; 126. Fifth cable; 127. Fifth cable sleeve;

[0034] 20. Seat body;

[0035] 30. Tilting auxiliary device;

[0036] 40. Support components. Detailed Implementation

[0037] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0038] In the description of this invention, it should be understood that the terms "inner", "outer", "top", "bottom", "between", "circumferential", "clockwise", "counterclockwise", etc., used in this invention to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0039] The terms "first," "second," ..., "fourth," and "fifth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, referring to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections via an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meaning of these terms in this invention based on the specific circumstances.

[0040] Example 1

[0041] like Figure 1-4 As shown, this embodiment provides a seat proportion adjustment mechanism, which includes a seat body 20 and a proportion adjustment linkage assembly 10. The bottom of the seat body 20 is rotatably provided with a flipping auxiliary device 30 and a support component 40 at opposite ends. Specifically, the flipping auxiliary device 30 and the support component 40 are respectively hinged to both sides of the bottom of the seat body 20. The proportion adjustment linkage assembly 10 is disposed inside the seat body 20, and the proportion adjustment linkage assembly 10 is connected to the flipping auxiliary device 30 by a cable. The proportion adjustment linkage assembly 10 is also connected to the support component 40 by a cable.

[0042] It should be noted that the proportional adjustment linkage component 10 is placed between the flipping auxiliary device 30 and the support component 40. The proportional adjustment linkage component 10 is linked with the flipping auxiliary device 30 and the support component 40 respectively through cables, that is, the proportional adjustment linkage component 10 is used for transfer.

[0043] In a specific embodiment, the proportional adjustment linkage component 10 includes a first bracket 101, a first driving gear 104, and a first driven gear 105. Specifically, the first bracket 101 is disposed inside the seat body 20, and the first bracket 101 is provided with a first rotating shaft 102 and a second rotating shaft 103; the first driving gear 104 is disposed on the first rotating shaft 102, and the first driving gear 104 has a first cable groove 1043 in its circumference, and a first cable 106 connected to the flipping auxiliary device 30 is wound in the first cable groove 1043; the first driven gear 105 is disposed on the second rotating shaft 103, and the first driven gear 105 is meshed with the first driving gear 104; the first driven gear 105 has a second cable groove 1054 in its circumference, and a second cable 108 connected to the support member 40 is wound in the second cable groove 1054.

[0044] In some embodiments, the first driving gear 104 can rotate relative to the first rotating shaft 102; similarly, the first driven gear 105 can rotate relative to the second rotating shaft 103. It should be noted that, in order to achieve the purpose of proportional adjustment, both the first driving gear 104 and the first driven gear 105 adopt a non-full gear structure, so that the first driving gear 104 and the first driven gear 105 achieve partial meshing, that is, the gear meshing is only for a part. When the meshing position is exceeded, the first driving gear 104 continues to rotate without causing the first driven gear 105 to rotate.

[0045] In some embodiments, the first driving gear 104 includes a first smooth section 1041 and a first active meshing tooth section 1042, and the first driven gear 105 includes a first driven meshing tooth section 1053 and a limiting arc section. The first driven meshing tooth section 1053 meshes with the first active meshing tooth section 1042, and the limiting arc section engages with the first smooth section 1041. That is, the gear meshing only involves the first active meshing tooth section 1042 and the first driven meshing tooth section 1053. When the meshing position is exceeded, the first smooth section 1041 engages with the limiting arc section, so that the first driving gear 104 continues to rotate without causing the first driven gear 105 to rotate.

[0046] In some embodiments, the first driving gear 104 has a first cable groove 1043 circumferentially formed, and a first cable 106 is wound in the first cable groove 1043. One end of the first cable 106 is wound and connected to the hinge shaft of the flipping auxiliary device 30, and this connection needs to be at a certain distance from the rotation center of the hinge shaft. The first driven gear 105 has a second cable groove 1054 circumferentially formed, and a second cable 108 is wound in the second cable groove 1054. One end of the second cable 108 is wound and connected to the hinge shaft of the support member 40, and this connection needs to be at a certain distance from the rotation center of the hinge shaft.

[0047] In some embodiments, to ensure that the seat body 20 and the flipping auxiliary device 30 avoid tangling of the first cable 106 during the flipping process, the first cable 106 should always be in a taut state. For this purpose, the first drive gear 104 is provided with a first elastic element position 1044, and the first elastic element position 1044 is provided with an active elastic element (not shown). The active elastic element can apply torque in the M1 direction to the first drive gear 104, that is, the first cable 106 always has a tendency to wind into the first cable groove 1043.

[0048] In some embodiments, in order to ensure smooth movement of the first driving gear 104 and the first driven gear 105, a torque in the M2 direction can generally be applied to the first driven gear 105. That is, a second elastic element position 1055 is provided on the first driven gear 105, and a driven elastic element (not shown) is provided in the second elastic element position 1055. The driven elastic element can apply a torque in the M2 direction to the first driven gear 105. It should be noted that the M2 direction is opposite to the M1 direction, thereby improving the smoothness of movement and making it easier to use.

[0049] In some embodiments, the limiting arc segment includes a first limiting arc 1051 and a second limiting arc 1052. The first limiting arc 1051 and the second limiting arc 1052 are respectively disposed on both sides of the first driven meshing tooth segment 1053, and both the first limiting arc 1051 and the second limiting arc 1052 can cooperate with the first smooth surface segment 1041. Before being stored (in the riding state), the first smooth surface segment 1041 cooperates with the first limiting arc 1051. At this time, the rotation of the first driving gear 104 will not drive the first driven gear 105. When the seat body 20 is folded up, the support component 40 does not rotate. During the folding process, the first driven meshing tooth segment 1053 meshes with the first active meshing tooth segment 1042, and the first driven gear 105 follows the first active gear 104. The support component 40 rotates to fold up. After folding up (folded state), the first smooth segment 1041 engages with the second limiting arc 1052. At this time, the rotation of the first active gear 104 will not drive the first driven gear 105 to rotate, and the support component 40 will no longer rotate. This process will continue until the seat body 20 is folded up.

[0050] In other embodiments, a first cable sleeve 107 is provided on the first bracket 101. One end of the first cable 106 extends into the first cable sleeve 107. By providing the first cable sleeve 107, the first cable 106 can be protected and guided, and the first cable 106 can also be prevented from rubbing against the seat body 20 and damaging the seat.

[0051] In other embodiments, a second cable sleeve 109 is provided on the first bracket 101. One end of the second cable 108 extends into the second cable sleeve 109. By providing the second cable sleeve 109, the second cable 108 can be protected and guided, and the second cable 108 can also be prevented from rubbing against the seat body 20 and damaging the seat.

[0052] In other embodiments, a reset elastic element is provided on the hinge axis between the support member 40 and the seat body 20. The reset elastic element can apply a torque in the m direction to the support member 40. In order to enable the support member to open even if the cable fails, a torque in the m direction is provided at the hinge axis of the support member 40. When the traction force of the second cable 108 on the support member 40 decreases, the support member 40 can automatically unfold under the action of the torque in the m direction.

[0053] In other embodiments, when there are multiple support components but only one auxiliary flipping device, or when multiple support components need to operate synchronously at the same time for ease of production and debugging, the second cable 108 can be split into several cables to realize a scenario where one power source has multiple output ends.

[0054] In addition, in order to adapt the folding and unfolding speed of the support components to the requirements, it is only necessary to adjust the transmission ratio of the first driving gear and the first driven gear accordingly.

[0055] The operation process in this embodiment is as follows: Figure 1-4 As shown, when the seat body 20 is rotated and retracted along the R direction, as the first cable 106 is wound around the flipping auxiliary device 30, the first cable 106 will overcome the torque in the M1 direction, thereby pulling the first drive gear 104 to rotate counterclockwise. Figure 3 From a certain perspective, after the first driving gear 104 rotates a certain angle, the first driving meshing tooth section 1042 meshes with the first driven meshing tooth section 1053, thereby driving the first driven gear 105 to rotate clockwise. Figure 3 From a certain perspective, the rotation of the first driven gear 105 drives the second cable 108 to wind in the second cable groove 1054, thereby pulling the support component 40 to rotate in the N direction, so that it can be folded and stored.

[0056] When the first driving gear and driven gear exceed the meshing tooth section, when the first smooth section 1041 engages with the second limiting arc 1052, only the first driving gear 104 will rotate, while the first driven gear 105 will no longer rotate, and consequently the support component 40 will also no longer rotate. This process will continue until the seat is folded up.

[0057] Conversely, when the seat is rotated and unfolded along the S direction, as the first cable 106 is relaxed on the flipping auxiliary device 30, under the torque action of the active elastic element along the M1 direction, the first active gear 104 will rotate clockwise along the M1 direction and wind the first cable 106 into the first cable groove 1043. When the first active meshing tooth segment 1042 meshes with the first driven meshing tooth segment 1053, it will drive the first driven gear 105 to rotate counterclockwise, thereby causing the second cable 108 wound on the second cable groove 1054 to loosen. At the same time, under the torque action of the support member 40 in the m direction, the support member 40 will automatically unfold.

[0058] When the first driving gear and driven gear exceed the meshing tooth section, and the first smooth section 1041 engages with the first limiting arc 1051, the first driven gear 105 stops rotating, and only the first driving gear 104 continues to rotate, continuing to wind the slack first cable 106 into the first cable groove 1043.

[0059] In summary, the seat proportion adjustment mechanism and car seat provided in this embodiment have a simple structure. By setting a non-full gear structure first driving gear 104 and first driven gear 105 on the first bracket 101, the first driving gear 104 and the first driven gear 105 can only partially mesh. When the first cable 106 is subjected to an outward traction force, the second cable 108 can be wound on the second cable groove 1054, thereby realizing the linkage of the first cable 106 and the second cable 108 and realizing proportion adjustment. The proportion adjustment linkage component 10 is located inside the seat body 20, and the proportion adjustment linkage component 10 is independent from the support component 40. The cable connecting the support component 40 and the flipping auxiliary device 30 is transferred using the proportion adjustment linkage component 10, thereby realizing variable proportion adjustment of the seat support component, so that the support component can be folded and unfolded within a short distance or angle.

[0060] Example 2

[0061] like Figure 5-8 As shown, this embodiment provides a seat ratio adjustment mechanism, including a ratio adjustment linkage component 10, a seat body 20, a flipping auxiliary device 30, and a support component 40.

[0062] In some embodiments, the flipping assist device 30 is hinged to one side of the bottom of the seat body 20 to enable the entire seat to be flipped and stored; the proportional adjustment linkage component 10 is located on the other side of the bottom of the seat body 20, and the support member 40 is connected to the proportional adjustment linkage component 10 and can rotate relative to the seat.

[0063] In some implementations, such as Figure 6-8As shown, the proportional adjustment linkage assembly 10 includes a third bracket 121, a second driving gear 123, and a second driven gear 125. The third bracket 121 is fixed to the bottom of the seat body 20. The third bracket 121 is provided with a fourth rotating shaft 122 and a fifth rotating shaft 124. The second driving gear 123 is rotatably mounted on the fourth rotating shaft 122, and the second driven gear 125 is coaxially mounted on the fifth rotating shaft 124. Specifically, the second driven gear 125 and the second driving gear 123 are incompletely meshed.

[0064] In some embodiments, a fifth cable 126 connected to the flipping auxiliary device 30 is wound around the circumferential wall of the second drive gear 123. The fifth cable 126 is connected between the proportional adjustment linkage component 10 and the flipping auxiliary device 30 so that the support component 40 can be linked when the seat rotates around the flipping auxiliary device 30. The support component 40 can rotate relative to the seat, thereby achieving flipping and storage.

[0065] It should be noted that, in order to achieve the purpose of proportional adjustment, both the second driving gear 123 and the second driven gear 125 adopt a non-full gear structure, so that the second driving gear 123 and the second driven gear 125 achieve partial meshing, that is, the gear meshing is only for a part. When the meshing position is exceeded, the second driving gear 123 continues to rotate without causing the second driven gear 125 to rotate.

[0066] In some embodiments, the circumferential wall of the second drive gear 123 is provided with a fifth cable groove 1233, and one end of the fifth cable 126 is wound in the fifth cable groove 1233. When the seat rotates around the flipping auxiliary device 30, the fifth cable 126 is wound on the rotating shaft, thereby pulling the second drive gear 123 to rotate synchronously, thereby realizing the linkage of the support component 40.

[0067] In the above example, the second driving gear 123 includes a second driving meshing tooth segment 1231 and a second smooth segment 1232, the radius of which is equal to the radius of the root circle of the second driving meshing tooth segment 1231; the second driven gear 125 includes a second driven meshing tooth segment 1251 and a limiting arc segment, the second driven meshing tooth segment 1251 meshes with the second driving meshing tooth segment 1231, and the limiting arc segment can smoothly engage with the second smooth segment 1232; that is, the gear meshing only involves the second driving meshing tooth segment 1231 and the second driven meshing tooth segment 1251. When the meshing position is exceeded, the second smooth segment 1232 engages with the limiting arc segment, so that the second driving gear 123 continues to rotate without causing the second driven gear 125 to rotate.

[0068] In some embodiments, the limiting arc segment includes a third limiting arc 1252 and a fourth limiting arc 1253, which are respectively disposed on both sides of the second driven meshing tooth segment 1251; when the seat is in the unfolded state, the third limiting arc 1252 cooperates with the second smooth surface segment 1232, and when the seat is in the retracted state, the fourth limiting arc 1253 cooperates with the second smooth surface segment 1232.

[0069] It should be noted that before the seat is folded down (in the seated position), the second smooth section 1232 engages with the third limiting arc 1252. At this time, the rotation of the second driving gear 123 will not drive the rotation of the second driven gear 125, and the support component 40 will not rotate. During the folding process, the second driven meshing tooth section 1251 engages with the second driving meshing tooth section 1231, and the second driven gear 125 follows the second driving gear 123. The support component 40 rotates to fold down the seat. After the seat is folded down (in the folded position), the second smooth section 1232 engages with the fourth limiting arc 1253. At this time, the rotation of the second driving gear 123 will not drive the rotation of the second driven gear 125, and the support component 40 will no longer rotate. This process will continue until the seat is folded down completely.

[0070] In some embodiments, the support member 40 is rotatably connected to the fifth rotating shaft 124, that is, the second driven gear 125 rotates to drive the fifth rotating shaft 124 to rotate, and then drives the support member 40 to rotate synchronously.

[0071] In other examples, to further improve the stability of the transmission, the support member 40 may be fixedly connected to the second driven gear 125.

[0072] In some embodiments, to ensure that the seat and the flipping assist device 30 do not become loose or tangled during the flipping process, the fifth cable 126 should always be in a taut state. For this purpose, a fourth elastic element position 1234 is provided on the second drive gear 123, and an active elastic element is provided in the fourth elastic element position 1234. The active elastic element is sleeved on the fourth rotating shaft 122. The active elastic element applies a torque in the M4 direction to the second drive gear 123, so that the fifth cable 126 always tends to wind into the fifth cable groove 1233.

[0073] In other embodiments, to improve the smoothness of the movement of the second driving gear 123 and the second driven gear 125, a torque in the opposite direction may be applied to the second driven gear 125.

[0074] The proportional adjustment linkage assembly 10 also includes a fifth cable sleeve 127 and a snap-fit ​​component 506. The fifth cable sleeve 127 is detachably mounted on the third bracket 121. The fifth cable 126 passes through the fifth cable sleeve 127 and extends towards the second drive gear 123, corresponding to the fifth cable groove 1233. The snap-fit ​​component 506 is mounted on the third bracket 121 to fix the fifth cable sleeve 127. By setting the fifth cable sleeve 127, the fifth cable 126 can be protected and guided, and the fifth cable 126 can also be prevented from rubbing against the seat and damaging the seat.

[0075] The working process of this embodiment is as follows: Figure 5-8 As shown, when the seat is rotated and folded in the R direction, the fifth cable 126, as it winds around the flipping aid 30, will overcome the torque in the M4 direction, thereby pulling the second drive gear 123 to rotate counterclockwise. Figure 6 From a certain perspective, after the second driving gear 123 rotates a certain angle, the second driving meshing tooth section 1231 meshes with the second driven meshing tooth section 1251, thereby driving the second driven gear 125 to rotate clockwise. Figure 6 (From a certain perspective), the rotation of the second driven gear 125 drives the fifth rotating shaft 124 to rotate, which in turn drives the support component 40 to rotate synchronously, thereby pulling the support component 40 to rotate along the N direction, so that it can be folded and stored.

[0076] When the main and second driven gears exceed the meshing tooth section, when the second smooth section 1232 engages with the fourth limiting arc 1253, only the second driving gear 123 will rotate, while the second driven gear 125 will no longer rotate, and consequently the support component 40 will also no longer rotate. This process will continue until the seat is folded up.

[0077] Conversely, when the seat is rotated and unfolded along the S direction, as the fifth cable 126 is relaxed on the flipping auxiliary device 30, under the torque action of the active elastic element along the M4 direction, the second active gear 123 will rotate clockwise along the M4 direction and wind the fifth cable 126 into the fifth cable groove 1233. When the second active meshing tooth section 1231 and the second driven meshing tooth section 1251 mesh, the second driven gear 125 will be driven to rotate counterclockwise, which will then drive the support component 40 to rotate synchronously, so that the support component 40 unfolds automatically.

[0078] When the main and second driven gears exceed the meshing tooth section, and the second smooth section 1232 engages with the third limiting arc 1252, the second driven gear 125 stops rotating, and only the second driving gear 123 continues to rotate, continuing to wind the fifth cable 126 in the fifth cable groove 1233.

[0079] In summary, this embodiment provides an integrated proportional adjustment mechanism for automobile seats. Its structure is simple. By integrating the proportional adjustment linkage component 10 and the support component 40 into one unit, and linking it with the flipping auxiliary device 30 through the fifth cable 126, the support component 40 can be adjusted proportionally. When the seat is flipped and stored relative to the flipping auxiliary device 30, the support component 40 can be stored and unfolded within a short distance or angle.

[0080] Example 4

[0081] This embodiment provides a car that includes the seat ratio adjustment mechanism described in any of the above embodiments. The car using this seat ratio adjustment mechanism can achieve different ratios of folding and storage. When it is necessary to fold and store the support components faster or slower, it is adjustable so that the support components can be folded and unfolded within a shorter distance or angle to meet user needs.

[0082] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and substitutions without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention. The basic principles, main features, and advantages of the present invention have been shown and described above. It is obvious to those skilled in the art that the present invention is not limited to the details of the above preferred embodiments. The embodiments should be considered exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all changes falling within the meaning and scope of the equivalents of the claims be included within the present invention.

[0083] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A seat ratio adjustment mechanism, characterized in that, include: The seat body has a flipping auxiliary device and a support component rotatably mounted on opposite ends of its bottom. The support component always has a torque in the m direction relative to the seat body. as well as A proportional adjustment linkage component is provided in the seat body, and the proportional adjustment linkage component is connected to the flipping auxiliary device by a cable, and the proportional adjustment linkage component is connected to the support component by a cable; The proportional adjustment linkage component includes: A first bracket is disposed within the seat body, and the first bracket is provided with a first rotating shaft and a second rotating shaft; A first driving gear, disposed on the first rotating shaft, has a first cable groove circumferentially formed therein. A first cable connected to the flipping auxiliary device is wound within the first cable groove. The first driving gear always possesses torque in the M1 direction; and A first driven gear is disposed on the second rotating shaft. The first driven gear meshes with the first driving gear. A second cable groove is provided in the circumference of the first driven gear. A second cable connected to the support component is wound in the second cable groove. Both the first driving gear and the first driven gear are non-full gear structures, and the first driving gear and the first driven gear are partially meshed. The first driving gear includes a first smooth section and a first active meshing tooth section, and the first driven gear includes a first driven meshing tooth section, a first limiting arc and a second limiting arc, with the first limiting arc and the second limiting arc respectively located on both sides of the first driven meshing tooth section. The first active meshing tooth segment meshes with the first driven meshing tooth segment, and the first limiting arc and the second limiting arc cooperate with the first smooth surface segment.

2. The seat ratio adjustment mechanism according to claim 1, characterized in that, The first driven gear always has torque in the M2 direction; wherein, the M2 direction is opposite to the M1 direction.

3. A seat ratio adjustment mechanism, characterized in that, include: The seat body has a flipping auxiliary device and a support component rotatably mounted on opposite ends of its bottom. The support component always has a torque in the m direction relative to the seat body. as well as A proportional adjustment linkage assembly is disposed within the seat body and connected to the tilting assist device via a cable. The proportional adjustment linkage assembly is integrally connected to the support component. The proportional adjustment linkage assembly includes: A third bracket is provided on the seat body, and a fourth pivot and a fifth pivot are provided on the third bracket. The support component is installed on the fifth pivot. A second driving gear, disposed on the fourth rotating shaft, has a fifth cable wound around its circumferential wall, connected to the tilting auxiliary device. The second driving gear always possesses torque along the M4 direction; and The second driven gear is located on the fifth rotating shaft, and the second driven gear and the second driving gear are in a partially meshed connection; The second driving gear includes a second driving meshing tooth segment and a second smooth surface segment. The second driven gear includes a second driven meshing tooth segment, a third limiting arc, and a fourth limiting arc. The second driven meshing tooth segment meshes with the second driving meshing tooth segment. The third limiting arc and the fourth limiting arc can cooperate with the second smooth surface segment.

4. A car, characterized in that, Includes a seat proportion adjustment mechanism as described in any one of claims 1-3.

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