Seat stowing mechanism and seat

Abstract

The application relates to the technical field of automobile seats, and discloses a seat storage mechanism and a seat, wherein the seat storage mechanism comprises a mounting piece, a rotating shaft, a connecting piece used for being connected to a seat body, a cam and a first elastic piece; the rotating shaft is rotationally connected with the mounting piece; the connecting piece is connected to the rotating shaft; the cam is connected to the rotating shaft, and the cam has a first locking surface and a first unlocking surface; the pawl is rotationally connected with the mounting piece, and the pawl has a second locking surface and a second unlocking surface; the two ends of the first elastic piece are respectively connected with the mounting piece and the pawl, so that the pawl rotates along the first direction around a second axis; the seat storage mechanism provided by the application can realize the automatic unlocking and automatic locking of the rotating shaft by turning over the connecting piece through the arrangement of the cam and the pawl, so that the automatic unlocking and automatic locking of the seat storage mechanism can be realized, and the operation is simple and convenient.

Description

Technical Field

[0001] This invention relates to the field of automotive seat technology, and in particular to a seat storage mechanism and a seat. Background Technology

[0002] With the development of the national economy and the gradual improvement of people's living standards, cars have gradually entered everyone's life. As the user base expands, different needs for cars are gradually emerging. Some cars require seat storage mechanisms to store and hide the seats in order to expand the interior space.

[0003] Existing seat storage mechanisms require additional hooks to be added to the vehicle body to secure them. When the seat is folded into the recess, to prevent it from bouncing and making noise while the car is in motion, existing technology involves pressing down on the seat to hook the mechanical hooks onto it, thus maintaining its stability. When the seat needs to be flipped from the folded position to the seated position, the hooks on the seat must be unhooked and removed before the seat can be flipped. Therefore, existing seat storage mechanisms require manual hooking and unhooking to lock and unlock the seat, which is cumbersome and inconvenient to use. Summary of the Invention

[0004] The purpose of this invention is to provide a seat storage mechanism and a seat, wherein the seat storage mechanism can automatically lock and unlock by flipping, and is simple to operate and convenient to use.

[0005] To achieve the above objectives, the present invention provides a seat storage mechanism, including a mounting component, a rotating shaft, a connector for connecting to a seat body, a cam, and a first elastic member; the rotating shaft is rotatably connected to the mounting component; the connector is connected to the rotating shaft; the cam is connected to the rotating shaft, and the cam has a first locking surface and a first unlocking surface arranged sequentially along a first direction; a pawl is rotatably connected to the mounting component, and the pawl has a second locking surface and a second unlocking surface arranged sequentially along the first direction; the two ends of the first elastic member are respectively connected to the mounting component and the pawl, so that the pawl rotates about a second axis along the first direction; wherein, the cam has: a first position, in which the second unlocking surface abuts against the first unlocking surface to unlock the rotating shaft, so that the rotating shaft can rotate about the first axis; and a second position, in which the second locking surface abuts against the first locking surface to lock the rotating shaft, thereby restricting the rotating shaft from rotating about the first axis along a second direction, the second direction being opposite to the first direction.

[0006] In some embodiments, the first locking surface is planar and the second locking surface is planar; wherein, when the cam is in the second position, the angle between the first locking surface and the horizontal direction is b, and the angle between the second locking surface and the horizontal direction is d, satisfying: 0 < b < 90°, b = d.

[0007] In some embodiments, the first unlocking surface is a first arc surface extending in an arc direction, and the second unlocking surface is a second arc surface extending in an arc direction;

[0008] When the cam is in the first position, the first unlocking surface and the second unlocking surface are tangent.

[0009] In some embodiments, the first unlocking surface is a first helical surface extending in a helical direction, and the helix angle of the first unlocking surface is α;

[0010] Wherein, when the second unlocking surface abuts against the first unlocking surface, the friction angle formed between the second unlocking surface and the first unlocking surface is Ф, which satisfies: α>Ф.

[0011] In some embodiments, the second unlocking surface is a second helical surface extending in a helical direction, and the helix angle of the second unlocking surface is β;

[0012] Wherein, when the second unlocking surface abuts against the first unlocking surface, the friction angle formed between the second unlocking surface and the first unlocking surface is Ф, which satisfies: β>Ф.

[0013] In some embodiments, the pawl includes a first connecting portion and a second connecting portion connected to the first connecting portion. The first connecting portion is rotatably connected to the mounting member, and the second connecting portion is connected to the first elastic member. The second locking surface is a stepped surface formed at the junction of the first connecting portion and the second connecting portion, and the second unlocking surface is disposed on the second connecting portion.

[0014] In some embodiments, the mounting component includes a mounting base and a mounting bracket, the mounting bracket being connected to the mounting base, the mounting bracket having a mounting hole, and the rotating shaft being rotatably connected to the mounting bracket through the mounting hole.

[0015] In some embodiments, a flipping assist component is also included, which is connected to the rotating shaft.

[0016] In some embodiments, the flipping assist component includes a limiting member and a second elastic member. The limiting member is connected to the rotating shaft, and the second elastic member is sleeved on the rotating shaft. The second elastic member has a first working arm and a second working arm. When the cam is in the first position, the first working arm abuts against the mounting bracket, and the second working arm abuts against the limiting member. When the cam is in the second position, the first working arm abuts against the limiting member, and the second working arm abuts against the mounting bracket.

[0017] The present invention also provides a seat, including the seat storage mechanism described in any of the above claims, and a seat body, wherein the seat storage mechanism is connected to the seat body.

[0018] Compared with existing technologies, the seat storage mechanism provided by this invention has the following advantages: When it is necessary to change the seat from a sitting state to a storage state, the seat body is flipped to drive the connecting member to rotate around a first axis in a first direction, so that the rotating shaft drives the cam to rotate in the first direction, so that the cam moves to a first preset position and separates from the pawl, so that the pawl can rotate around the first direction under the elastic force of the first elastic member, so that the second locking surface abuts against the first locking surface, thereby locking the rotating shaft and restricting the rotating shaft from rotating around the first axis in a second direction to reset, thereby locking the seat body in the storage state; when it is necessary to change the seat from the storage state to a sitting state, the seat body is flipped to drive the connecting member to rotate around a first axis in a first direction, so that the connecting member rotates ... The connecting member rotates around a first axis in a second direction, causing the rotating shaft to drive the cam to rotate in the second direction against gravity and the elastic force of the first elastic member. This causes the cam to move to a second preset position and separate from the pawl, allowing the pawl to rotate around the first direction under the elastic force of the first elastic member. This allows the second unlocking surface to abut against the first unlocking surface, unlocking the rotating shaft. The rotating shaft can then continue to rotate in the first direction until the seat is in a seated position. Therefore, the seat storage mechanism provided by this invention, by setting the cam and the pawl, can automatically unlock and lock the rotating shaft by flipping the connecting member, thereby achieving automatic unlocking and locking of the seat storage mechanism. It is simple to operate and convenient to use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a seat storage mechanism provided in an embodiment of the present invention when the cam is in the first position;

[0020] Figure 2 This is a schematic diagram of a seat storage mechanism in the storage process according to an embodiment of the present invention;

[0021] Figure 3This is a schematic diagram of a seat storage mechanism provided in an embodiment of the present invention when the cam is in the second position;

[0022] Figure 4 This is an exploded view of a seat storage mechanism provided in an embodiment of the present invention;

[0023] Figure 5 This is a structural diagram of the cam provided in an embodiment of the present invention;

[0024] Figure 6 This is a structural diagram of the pawl provided in an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the first unlocking surface and the horizontal direction forming an angle when the cam is in the second position according to an embodiment of the present invention;

[0026] Figure 8 This is a structural diagram of the mounting bracket provided in an embodiment of the present invention;

[0027] Figure 9 This is a structural diagram of the limiting member provided in an embodiment of the present invention;

[0028] Figure 10 This is a structural diagram of a seat in a seated position according to an embodiment of the present invention;

[0029] Figure 11 This is a structural diagram of a seat in the storage process according to an embodiment of the present invention;

[0030] Figure 12 This is a structural diagram of a seat in a stowed state according to an embodiment of the present invention.

[0031] In the diagram, 1 is the mounting component; 11 is the mounting base; 12 is the mounting bracket; 13 is the bushing; 14 is the lock nut; 101 is the mounting hole; 102 is the threaded hole; 103 is the screw; 121 is the first mounting part; 122 is the second mounting part; 123 is the third connecting part; 124 is the first support part; and 125 is the second support part.

[0032] 2. Shaft; 21. Strip section;

[0033] 3. Connectors;

[0034] 4. Cam; 41. First locking surface; 42. First unlocking surface; 43. First arc transition surface; 44. Guide surface; 441. First planar guide section; 442. Arc guide section; 443. Second planar guide section;

[0035] 5. Pawl; 51. First connecting part; 52. Second connecting part; 501. First connecting hole; 502. Second connecting hole; 511. Second arc transition surface; 512. Limiting surface; 521. Second locking surface; 522. Second unlocking surface; 523. Avoiding surface;

[0036] 6. First elastic element;

[0037] 7. Tilting assist assembly; 71. Limiting component; 72. Second elastic component; 73. Core sleeve; 701. Through hole; 711. First limiting wall; 712. Second limiting wall; 721. First actuating arm; 722. Second actuating arm;

[0038] 8. Rotating component; 81. Stepped screw; 82. Cylindrical nut;

[0039] 1000. Seat storage mechanism;

[0040] 2000, Seat body;

[0041] S, first direction; N, second direction; X, horizontal direction. Detailed Implementation

[0042] 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.

[0043] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom" are used interchangeably.

[0044] The terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of facilitating the description of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0045] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0046] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] In the description of the embodiments of this invention, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following associated objects have an "or" relationship.

[0049] like Figure 1-9 As shown, a preferred embodiment of the present invention provides a seat storage mechanism, comprising a mounting component 1, a rotating shaft 2, a connecting component 3 for connection to the seat body, a cam 4, a pawl 5, and a first elastic component 6; the rotating shaft 2 is rotatably connected to the mounting component 1; the connecting component 3 is connected to the rotating shaft 2; the cam 4 is connected to the rotating shaft 2, and the cam 4 has a first locking surface 41 and a first unlocking surface 42 arranged sequentially along a first direction S; the pawl 5 is rotatably connected to the mounting component 1, and the pawl 5 has a second locking surface 521 and a second unlocking surface 522 arranged sequentially along the first direction S; the two ends of the first elastic component 6 are respectively connected to the mounting component 1 and the pawl 5, so that the pawl 5 rotates around a second axis along the first direction S; wherein, the cam 4 has the following characteristics: at this time, the second unlocking surface 522 abuts against the first unlocking surface 42 to unlock the rotating shaft 2, so that the rotating shaft 2 can rotate around the first axis; at this time, the second locking surface 521 abuts against the first locking surface 41 to lock the rotating shaft 2, so as to restrict the rotating shaft 2 from rotating around the first axis along a second direction N, the second direction N being opposite to the first direction S.

[0050] Based on this technical solution, when the seat needs to be changed from a sitting position to a folded position, the seat body is flipped to drive the connecting member 3 to rotate around the first axis in the first direction S. This causes the rotating shaft 2 to drive the cam 4 to rotate in the first direction S, so that the cam 4 moves to a first preset position and separates from the pawl 5. The pawl 5 can then rotate around the first direction S under the elastic force of the first elastic member, so that the second locking surface 521 abuts against the first locking surface 41, locking the rotating shaft 2 and restricting its rotation around the first axis in the second direction N to reset it. This locks the seat body in the folded position. When the seat needs to be changed from a folded position to a sitting position, the seat body is flipped to drive the connecting member 3 to rotate around the first axis in the second direction N. The rotating shaft 2 rotates towards direction S, causing the cam 4 to overcome gravity and the elastic force of the first elastic element 6 and rotate along the second direction N. This causes the cam 4 to move to the second preset position and separate from the pawl 5, allowing the pawl 5 to rotate around the first direction S under the action of the elastic force of the first elastic element 6. This allows the second unlocking surface 522 to abut against the first unlocking surface 42, thereby unlocking the rotating shaft 2. The rotating shaft 2 can then continue to rotate along the first direction S until the seat is in a seated position. Therefore, the seat storage mechanism provided by this invention, by setting the cam 4 and the pawl 5, can automatically unlock and lock the rotating shaft 2 by flipping the connecting member 3. This enables the automatic unlocking and locking of the seat storage mechanism, which is simple to operate and convenient to use.

[0051] Simultaneously, the second unlocking surface 522 and the first unlocking surface 42 abut against each other. This not only prevents the pawl 5 from rotating around the second axis in the first direction S by supporting the second unlocking surface 522 with the first unlocking surface 42, thus limiting the position of the pawl 5, but also guides the cam 4 to rotate around the first axis in the first direction S when the rotating shaft 2 drives the cam 4 to move from the first position to the second position. This allows the first unlocking surface 42 of the cam 4 to move to the first preset position and disengage from the second unlocking surface 522, so that the pawl 5 can rotate around the first direction S under the elastic force of the first elastic member 6. This allows the second locking surface 521 to abut against the first locking surface 41, thereby locking the rotating shaft 2 and restricting the rotation of the rotating shaft 2 around the first axis in the second direction N to reset.

[0052] Mounting component 1 is used to attach to the vehicle body.

[0053] In this embodiment, the first direction S is clockwise and the second direction N is counterclockwise.

[0054] When the second unlocking surface 522 abuts against the first unlocking surface 42, the seat storage mechanism 1000 is in the unlocked state.

[0055] The second locking surface 521 abuts against the first locking surface 41, and the seat storage mechanism 1000 is in a locked state.

[0056] When cam 4 is in the first position, the seat is in the seated position.

[0057] When cam 4 is in the second position, the seat is in the stowed state.

[0058] In this embodiment, the cam 4 is semi-enclosed.

[0059] The second axis is parallel to the first axis.

[0060] In this embodiment, the first elastic element 6 is a tension spring, and the two ends of the tension spring are respectively attached to the mounting element 1 and the pawl 5.

[0061] In other embodiments, the first elastic element 6 may also be any elastic element such as a compression spring, extension spring, or pressure spring that can enable the pawl 5 to rotate around the second axis in the first direction S. Elastic elements that achieve this function in other ways should also be considered within the scope of protection of this invention.

[0062] In this embodiment, both the first locking surface 41 and the second locking surface 521 are planar. When the cam 4 is in the second position, the angle between the first locking surface 41 and the horizontal direction X is b, and the angle between the second locking surface 521 and the horizontal direction is d, satisfying: 0 < b < 90°, b = d. By using planar first and second locking surfaces 41 and 521 with b = d, when the cam 4 is in the second position, the first locking surface 41 and the second locking surface 521 can have a large contact area, so that the rotating shaft 2 can be locked through the contact friction of the first locking surface 41 and the second locking surface 521, thereby restricting the rotation of the rotating shaft 2 around the first axis along the second direction N to reset. The simultaneous use of 0 < b < 90° and 0 < d < 90° also facilitates the movement of the cam 4 along the first locking surface 41 of the pawl 5 until it briefly separates from the pawl 5 when the cam 4 moves around the first axis along the second direction N to the second preset position. This facilitates the transition from the state where the second locking surface 521 abuts against the first locking surface 41 to the state where the second unlocking surface 522 abuts against the first unlocking surface 42, thereby enabling the seat storage mechanism to change from the locked state to the unlocked state.

[0063] In some embodiments, the first locking surface 41 and / or the second locking surface 521 are particulate surfaces having a plurality of particles to enhance the contact friction between the first locking surface 41 and the second locking surface 521, thereby enhancing the frictional force used to further restrict the rotation of the shaft 2 about the first axis in the second direction N for resetting.

[0064] In this embodiment, the first unlocking surface 42 is a first arc-shaped surface extending in an arc direction, and the second unlocking surface 522 is a second arc-shaped surface extending in an arc direction; wherein, when the cam 4 is in the first position, the first unlocking surface 42 and the second unlocking surface 522 are tangent. The use of arc-shaped surfaces and tangency ensures that the first unlocking surface 42 and the second unlocking surface 522 are in line contact, reducing contact friction and allowing the rotating shaft 2 to be driven to rotate around the first axis with less force.

[0065] In some other embodiments, the first unlocking surface 42 is a first spiral surface extending in a spiral direction, and the helix angle of the first unlocking surface 42 is α; wherein, when the second unlocking surface 522 abuts against the first unlocking surface 42, the friction angle formed between the second unlocking surface 522 and the first unlocking surface 42 is Ф, satisfying: α>Ф.

[0066] Optionally, the first unlocking surface 42 can extend in any direction with a helix angle, such as a logarithmic spiral, an Archimedean spiral, or a hyperbolic spiral.

[0067] The helix angle is the angle between the tangent to the helix and a plane perpendicular to the axis of the thread; it is also called the lead angle. The tangent of the friction angle is equal to the static friction coefficient. Like the friction coefficient, the friction angle is a quantity representing the surface properties of a material. When the helix angle is less than or equal to the friction angle, a self-locking phenomenon exists between the two objects; when the helix angle is greater than the friction angle, no self-locking phenomenon exists between the two objects.

[0068] When the first unlocking surface 42 of the present invention extends in a spiral direction, the second unlocking surface 522 may extend in a spiral direction or not. The helix angle of the first unlocking surface 42 is α, and the friction angle formed between the first unlocking surface 42 and the second unlocking surface 522 is Ф, satisfying α>Ф. When the second unlocking surface 522 abuts against the first unlocking surface 42, the shaft 2 can be unlocked so that the shaft 2 can rotate around the first axis.

[0069] In some other embodiments, the second unlocking surface 522 is a second spiral surface extending in a spiral direction, and the helix angle of the second unlocking surface 522 is β; wherein, when the second unlocking surface 522 abuts against the first unlocking surface 42, the friction angle formed between the second unlocking surface 522 and the first unlocking surface 42 is Ф, satisfying: β > Ф. When the second unlocking surface 522 of the present invention extends in a spiral direction, the first unlocking surface 42 may or may not extend in a spiral direction, the helix angle of the second unlocking surface 522 is β, and the friction angle formed between the first unlocking surface 42 and the second unlocking surface 522 is Ф, satisfying β > Ф. When the second unlocking surface 522 abuts against the first unlocking surface 42, the shaft 2 can be unlocked, so that the shaft 2 can rotate around the first axis.

[0070] Optionally, the second unlocking surface 522 can extend in any direction with a helix angle, such as a logarithmic spiral, an Archimedean spiral, or a hyperbolic spiral.

[0071] The pawl 5 includes a first connecting portion 51 and a second connecting portion 52 connected to the first connecting portion 51. The first connecting portion 51 is rotatably connected to the mounting member 1, and the second connecting portion 52 is connected to the first elastic member 6. The second locking surface 521 is a stepped surface formed at the junction of the first connecting portion 51 and the second connecting portion 52, and the second unlocking surface 522 is disposed on the second connecting portion 52. The stepped surface can lock the rotating shaft 2 through the contact friction between the first locking surface 41 and the second locking surface 521, and can also play a pre-positioning role when the first unlocking surface 42 can move to the first preset position and disengage from the second unlocking surface 522, so that the second locking surface 521 of the cam 4 can fall into the L-shaped area formed by the first connecting portion 51 and the second connecting portion 52. Thus, under the elastic force of the first elastic member 6, the pawl 5 can accurately abut the second abutment surface against the first locking surface 41 to lock the rotating shaft 2.

[0072] The pawl 5 also has a clearance surface 523, which is connected to the end of the second unlocking surface 522 away from the second locking surface 521. The clearance surface 523 is used to avoid the cam 4 so that it can support the second unlocking surface 522 through the first unlocking surface 42 when the rotating shaft 2 is in the unlocked state, so as to prevent the pawl 5 from rotating around the second axis in the first direction S, thereby limiting the position of the pawl 5.

[0073] In this embodiment, the clearance surface 523 is a concave arc surface formed on the second connecting portion 52 and recessed in the direction away from the cam 4. It also includes a rotating member 8, and the pawl 5 is rotatably connected to the mounting member 1 via the first rotating member 8.

[0074] The rotating part 8 includes a stepped screw 81 and a cylindrical nut 82. The cylindrical nut 82 is threaded to the stepped screw 81. One end of the stepped screw 81 is connected to the mounting part 1. The first connecting part 51 has a first connecting hole 501, and the cylindrical nut 82 passes through the first connecting hole 501.

[0075] In this embodiment, the second connecting part 52 has a second connecting hole 502, the mounting part 1 has a threaded hole 102, the threaded hole 102 is connected to a screw 103, one end of the tension spring is hooked to the second connecting hole 502, and the other end is hooked to the screw 103.

[0076] The cam 4 has a first arc transition surface 43, and the two ends of the first arc transition surface 43 are respectively connected to the first locking surface 41 and the first unlocking surface 42.

[0077] When the connecting piece 3 is pushed by an external force to rotate around the first axis in the second direction N, thereby driving the second rotating shaft 2 to rotate the cam 4 around the first axis in the second direction N, so that the cam 4 moves from the second position to the first position, the connection position of the first locking surface 41 and the first unlocking surface 42 will abut against the second locking surface 521. The use of the first arc transition surface 43 can avoid the formation of sharp features at the connection position of the first locking surface 41 and the first locking surface 42, so as to avoid the situation where sharp features scratch the second locking surface 521. At the same time, the use of the first arc transition surface 43 also facilitates the cam 4 to briefly separate from the pawl 5 when it rotates around the first axis in the second direction N to the second preset position, thereby facilitating the transition from the state where the second locking surface 521 abuts against the first locking surface 41 to the state where the second unlocking surface 522 abuts against the first unlocking surface 42, and thus the seat storage mechanism 1000 changes from the locked state to the unlocked state. The first arc transition surface can be formed on the cam 4 by rounding the corners.

[0078] The cam 4 also has a guide surface 44, with its two ends connected to the first unlocking surface 42 and the first arc transition surface 43, respectively. The guide surface 44 guides the first unlocking surface 42 as the cam 4 rotates around the first axis in the first direction S to move from the first position to the second position. This allows the cam 4 to more smoothly separate from the pawl 5 when it moves to the first preset position, thus enabling a smoother transition from the state where the first unlocking surface 42 abuts against the second unlocking surface 522 to the state where the second locking surface 521 abuts against the first locking surface 41. Consequently, the seat storage mechanism 1000 can smoothly transition from the unlocked state to the locked state.

[0079] The guide surface 44 includes a first planar guide segment 441, an arc-shaped guide segment 442, and a second planar guide segment 443 connected in sequence. The end of the first planar guide segment 441 away from the arc-shaped guide segment 442 is connected to the first arc-shaped transition surface 43, and the end of the second planar guide segment 443 away from the arc-shaped guide segment 442 is connected to the first unlocking surface 42. This type of guide surface 44 provides better guidance for the first contact surface.

[0080] The pawl 5 has a second arc transition surface 511 and a limiting surface 512. Both the second arc transition surface 511 and the limiting surface 512 are located on the first connecting part 51. The second arc transition surface 511 is connected to the end of the second locking surface 521 away from the second unlocking surface 522, and the limiting surface 512 is connected to the end of the second arc transition surface 511 away from the second locking surface 521.

[0081] Mounting component 1 includes mounting base 11 and mounting bracket 12. Mounting bracket 12 is connected to mounting base 11 and has mounting hole 101. Rotary shaft 2 is rotatably connected to mounting bracket 12 through mounting hole 101.

[0082] Mounting bracket 11 is used to attach to the vehicle body.

[0083] Mounting component 1 also includes bushing 13, which is located between the outer wall of the rotating shaft 2 and the wall of the mounting hole 101. Bushing 13 serves to lubricate and reduce noise between the mounting hole 101 and the rotating shaft 2.

[0084] Mounting component 1 also includes a locking nut 14, which is connected to the end of the rotating shaft 2 away from the connector 3 and located on the side of the mounting base 11 opposite to the connector 3.

[0085] The seat storage mechanism provided in this embodiment of the invention also includes a flip-up assist component 7, which is connected to the rotating shaft 2. The flip-up assist component 7 can both offset part of the weight of the seat body when the seat changes from the sitting state to the storage state, so that the seat body can be put into the pit more smoothly, and offset part of the weight of the seat body when the seat changes from the storage state to the sitting state, so as to reduce the external force required to flip the seat body.

[0086] The flipping assist assembly 7 includes a limiting member 71 and a second elastic member 72. The limiting member 71 is connected to the rotating shaft 2, and the second elastic member 72 is sleeved on the rotating shaft 2. The second elastic member 72 has a first actuating arm 721 and a second actuating arm 722. When the cam 4 is in the first position, the first actuating arm 721 abuts against the mounting bracket 12, and the second actuating arm 722 abuts against the limiting member 71. When the cam 4 is in the second position, the first actuating arm 721 abuts against the limiting member 71, and the second actuating arm 722 abuts against the mounting bracket 12.

[0087] The use of limiting member 71 and second elastic member 72 can both counteract the gravitational potential energy of the seat body to facilitate the switching between the seat in the sitting state and the folded state, and when the cam 4 is in the second position, the force applied to the cam 4 by the rotating shaft 2 to rotate the cam 4 around the first axis in the second direction can cooperate with the force applied to the pawl 5 by the first elastic member 6 to rotate the pawl 5 around the second axis in the first direction, so that the first locking surface 41 and the second locking surface 521 can abut more tightly, which is beneficial to improving the stability of the rotating shaft 2 when locked, thereby improving the stability of the seat when it is in the folded state.

[0088] The limiting member 71 has a through hole 701 for the rotating shaft 2 to pass through.

[0089] In this embodiment, the limiting member 71 is connected to the rotating shaft 2 through the through hole 701.

[0090] Specifically, the through hole 701 is a strip-shaped through hole 701, and the rotating shaft 2 is provided with a strip-shaped part 21 that cooperates with the strip-shaped through hole 701. The second rotating shaft 2 drives the limiting member 71 to rotate through the cooperation of the strip-shaped part 21 and the strip-shaped through hole 701.

[0091] Mounting bracket 12 includes a first mounting part 121, a second mounting part 122, a third connecting part 123, a first support part 124, and a second support part 125. The two ends of the third connecting part 123 are respectively connected to the first mounting part 121 and the second mounting part 122. The first mounting part 121 and the second mounting part 122 are both provided with mounting holes 101. The first support part 124 is connected to the first mounting part 121 and / or the second mounting part 122. The first support part 124 is located on the first side of the second rotating shaft 2. The second support part 125 is connected to the first mounting part 121 and / or the second mounting part 122. The second support part 125 is located on the second side of the rotating shaft 2. The first side and the second side are arranged opposite to each other.

[0092] The limiting member 71 has a first limiting wall 711 and a second limiting wall 712. The first limiting wall 711 is located on the first side of the second rotating shaft 2, and the second limiting wall 712 is located on the second side of the second rotating shaft 2. When the cam 4 is in the first position, the first actuating arm 721 abuts against the first support portion 124, and the second actuating arm 722 abuts against the second limiting wall 712. When the cam 4 is in the second position, the first actuating arm 721 abuts against the first limiting wall 711, and the second actuating arm 722 abuts against the second support portion 125.

[0093] The flipping assist component 7 also includes a core sleeve 73, which is sleeved on the rotating shaft 2, and a second elastic element 72 is sleeved on the outer wall of the core sleeve 73.

[0094] The core sleeve 73 is made of non-metallic material to prevent the spring energy storage assembly from making abnormal noises during operation.

[0095] See Figure 10-12 The present invention also provides a seat, which includes the seat storage mechanism 1000 of any of the above-mentioned claims, and also includes a seat body 2000, wherein the seat storage mechanism 1000 is connected to the seat body 2000.

[0096] When cam 4 is in the first position, the seat is in the seated position.

[0097] When cam 4 is in the second position, the seat is in the stowed state.

[0098] The seat storage mechanism 1000 is connected to one or both sides of the seat body 2000.

[0099] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made 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.

Claims

1. A seat stowage mechanism characterized by, include: Installation components; A rotating shaft, which is rotatably connected to the mounting component; A connector for attaching to the seat body, the connector being connected to the pivot; A cam, connected to the rotating shaft, the cam having a first locking surface and a first unlocking surface arranged sequentially along a first direction; A pawl, which is rotatably connected to the mounting component, and the pawl has a second locking surface and a second unlocking surface arranged sequentially along the first direction; A first elastic element, the two ends of which are respectively connected to the mounting component and the pawl, so that the pawl rotates about the second axis along the first direction; The cam has the following characteristics: In the first position, the second unlocking surface abuts against the first unlocking surface to unlock the rotating shaft, so that the rotating shaft can rotate around the first axis. In the second position, the second locking surface abuts against the first locking surface to lock the rotating shaft and restrict the rotating shaft from rotating about the first axis in a second direction, which is opposite to the first direction. The mounting component includes a mounting base and a mounting bracket. The mounting bracket is connected to the mounting base and has mounting holes. The rotating shaft is rotatably connected to the mounting bracket through the mounting holes. It also includes a tilting assist component, which is connected to the rotating shaft; The flipping assist component includes a limiting member and a second elastic member. The limiting member is connected to the rotating shaft, and the second elastic member is sleeved on the rotating shaft. The second elastic member has a first working arm and a second working arm. When the cam is in the first position, the first actuating arm abuts against the mounting bracket, and the second actuating arm abuts against the limiting member; When the cam is in the second position, the first actuating arm abuts against the limiting member, and the second actuating arm abuts against the mounting bracket.

2. The seat stowage mechanism of claim 1, wherein, The first locking surface is planar, and the second locking surface is planar; When the cam is in the second position, the angle between the first locking surface and the horizontal direction is b, and the angle between the second locking surface and the horizontal direction is d, satisfying: 0 < b < 90°, b = d.

3. The seat stowage mechanism of claim 1, wherein, The first unlocking surface is a first arc surface extending in an arc direction, and the second unlocking surface is a second arc surface extending in an arc direction; When the cam is in the first position, the first unlocking surface and the second unlocking surface are tangent.

4. The seat storage mechanism according to claim 1, characterized in that, The first unlocking surface is a first spiral surface extending in a spiral direction, and the helix angle of the first unlocking surface is α; Wherein, when the second unlocking surface abuts against the first unlocking surface, the friction angle formed between the second unlocking surface and the first unlocking surface is Ф, which satisfies: α>Ф.

5. The seat storage mechanism according to claim 1, characterized in that, The second unlocking surface is a second spiral surface extending in a spiral direction, and the helix angle of the second unlocking surface is β; Wherein, when the second unlocking surface abuts against the first unlocking surface, the friction angle formed between the second unlocking surface and the first unlocking surface is Ф, which satisfies: β>Ф.

6. The seat storage mechanism according to claim 1, characterized in that, The pawl includes a first connecting portion and a second connecting portion connected to the first connecting portion. The first connecting portion is rotatably connected to the mounting member, and the second connecting portion is connected to the first elastic member. The second locking surface is a stepped surface formed at the junction of the first connecting portion and the second connecting portion, and the second unlocking surface is disposed on the second connecting portion.

7. A type of seat, characterized in that, The system includes a seat storage mechanism according to any one of claims 1-6, and further includes a seat body, wherein the seat storage mechanism is connected to the seat body.

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