Easy-entry device, seat and vehicle

Abstract

The application provides an easy access device, a seat and a vehicle. The seat comprises a backrest, a seat cushion and an easy access device. The backrest and the seat cushion are connected by a recliner. The seat cushion is rotatably arranged on a mounting base. A ground lock device is arranged between the seat cushion and the mounting base. The ground lock device can lock or unlock the rotation of the seat cushion relative to the mounting base. The easy access device comprises a driving member and a first follower. The driving member is connected to the recliner and the first follower. The first follower is rotatably arranged on the seat cushion and connected to the ground lock device. The first follower is provided with a first contact portion. The seat is provided with a second contact portion. The second contact portion rotates synchronously with the backrest. The driving member provides power to unlock the recliner and drive the first follower to rotate so that the first contact portion is located in the movement path of the second contact portion. The rotation of the backrest can make the second contact portion abut against the first contact portion to drive the first follower to rotate and unlock the ground lock device.

Description

Technical Field

[0001] This application relates to an access device, a seat, and a vehicle. Background Technology

[0002] An Easy Entry (EZE) device is a device integrated into a seat that allows occupants to pass through by adjusting the seat's position / posture to create space.

[0003] In vehicles such as multi-purpose vehicles (MPVs) and sport utility vehicles (SUVs), easy-access devices are usually attached to the second-row seats. By adjusting the second-row seats, space is made available for passengers in the third row to pass through or place items.

[0004] To optimize the user experience, enable seats to make more space through easy access devices, and make easy access devices simple and convenient to operate, there is an urgent need in this technical field to continue developing easy access devices; based on this, this application provides an easy access device, a seat, and a vehicle to meet at least one or a combination of the above technical needs. Utility Model Content

[0005] The first aspect of this application is to provide a seat.

[0006] The second aspect of this application aims to provide an easily accessible device.

[0007] The third aspect of this application aims to provide a means of transportation.

[0008] According to a first aspect of this application, a seat includes a backrest and a seat cushion, the backrest and the seat cushion being connected by an adjuster capable of locking or unlocking the flipping of the backrest relative to the seat cushion. The seat cushion is flip-mounted on a mounting base, and a floor lock device is provided between the seat cushion and the mounting base, the floor lock device capable of locking or unlocking the flipping of the seat cushion relative to the mounting base. The seat also includes an easy-entry device, the easy-entry device including a drive member and a first follower member. The drive member connects the adjuster and the first follower member. The first follower member is rotatably mounted on the seat cushion and connected to the floor lock device, and has a first contact portion. The seat provides a second contact portion, the second contact portion rotating synchronously with the backrest. The drive member provides power to unlock the adjuster and drive the first follower member to rotate such that the first contact portion is located in the movement path of the second contact portion. Thus, flipping the backrest allows the second contact portion to abut against the first contact portion, driving the first follower member to rotate to unlock the floor lock device.

[0009] Using the aforementioned easy-access device, the angle adjuster can be unlocked via the drive mechanism, and the floor lock device can be unlocked in conjunction with the backrest's flipping motion, thus achieving both backrest and seat cushion flipping actions, allowing the seat to create more space. It is understood that the movement and force required to unlock the angle adjuster and the floor lock device are usually unequal. If the drive mechanism is used to simultaneously provide the movement and force for unlocking both the angle adjuster and the floor lock device, not only is a large amount of movement and force required, but it can also lead to the problem of excessive force input for the component with the lower force requirement. Therefore, the first... The design of the follower component is simple: unlocking the angle adjuster and moving the first contact part to the second contact part are achieved through the driving component, requiring relatively little force and movement. During the backrest flipping process, the second contact part rotates along the movement path with the backrest, abutting against the first contact part and driving the first follower component to continue rotating. Thus, the motion and force of the backrest flipping are used to unlock the floor lock device. First, the angle adjuster is unlocked by operating the driving component, then the backrest is flipped and the floor lock device is unlocked in conjunction, and then the seat cushion is flipped. The backrest and seat cushion are unlocked and flipped sequentially from top to bottom, making the operation simple and smooth.

[0010] In some embodiments, the mounting base is a slide rail device for adjusting the fore-and-aft position of the seat cushion; the slide rail device includes an upper rail, a lower rail, and a locking block, the upper rail and the lower rail being movably connected in the fore-and-aft direction, the locking block being movably disposed on the lower rail in the vertical direction, the upper rail having a locking hole through which the locking block passes to lock the slide rail device; the seat cushion includes a seat cushion support and a linkage mechanism, the linkage mechanism enabling the seat cushion to flip relative to the slide rail device, the linkage mechanism including a connecting rod, one end of the connecting rod being rotatably connected to the seat cushion support, and the other end of the connecting rod surrounding... The first axis (x1) is rotatably connected to the upper rail; the easy-access device further includes a second follower, which is rotatably disposed on the upper rail, and the second follower is provided with an arc-shaped wall and a slide rail device unlocking part, the arc-shaped wall being eccentrically disposed around the first axis (x1); the connecting rod provides a third contact part, the third contact part abutting against the arc-shaped wall; flipping the seat cushion allows the connecting rod to rotate relative to the upper rail, the third contact part to move along the arc-shaped wall to drive the second follower to rotate, and the slide rail device unlocking part presses the locking block to unlock the slide rail device.

[0011] In some embodiments, the seat is configured with an easy-access state structure, wherein the easy-access state structure is configured such that: the backrest flips forward, the seat cushion flips forward, and the seat cushion moves forward via the slide rail device; during the operation of the easy-access device to enable the seat to achieve the easy-access state structure, the drive provides power to unlock the angle adjuster, then the backrest flips forward to unlock the floor lock device, then the seat cushion flips forward to unlock the slide rail device, and then the seat cushion moves forward via the slide rail device.

[0012] In some embodiments, the easy-access device further includes a first limiting member; the first limiting member is provided with a first stop portion and a second stop portion; the first follower is correspondingly provided with a fourth contact portion and a fifth contact portion; the first stop portion and the second stop portion are respectively used to stop the fourth contact portion and the fifth contact portion to limit the rotation range of the first follower; the second contact portion drives the first follower to rotate, such that the first stop portion stops the fourth contact portion to limit the angle of the backrest flipping.

[0013] In some embodiments, the easy-access device further includes a lever disposed between the first follower and the ground lock device; the first follower and the lever are connected by a third cable; the lever and the ground lock device are connected by a fourth cable; the power provided by the first follower is transmitted to the ground lock device through the lever to unlock the ground lock device.

[0014] In some embodiments, the easy-access device further includes an angle adjuster unlocking lever and a second limiting member, the angle adjuster unlocking member being disposed between the driving member and the angle adjuster, the driving member unlocking the angle adjuster by driving the angle adjuster unlocking member, and the second limiting member being used to limit the displacement of the angle adjuster unlocking lever.

[0015] In some embodiments, the drive member and the angle adjuster are connected by a first cable; and / or, the drive member and the first follower member are connected by a second cable.

[0016] In some embodiments, the easy-access device further includes a first elastic element for providing an elastic force to drive the first follower to a reset position; and / or, the easy-access device further includes a second elastic element for providing an elastic force to drive the backrest to flip forward; and / or, the easy-access device further includes a third elastic element for providing an elastic force to drive the seat cushion to flip forward; and / or, the drive element is a handgrip groove disposed on the upper part of the backrest, which provides power by flipping the handgrip groove forward; and / or, the seat further includes an adjuster unlocking structure capable of independently unlocking the adjuster and a backrest limiting structure for limiting the rotation range of the backrest.

[0017] According to a second aspect of this application, an easy-entry device is adapted to a seat as described in the first aspect. The easy-entry device includes the drive member and the first follower member; wherein the drive member is connected to the seat adjuster and the first follower member; the first follower member is rotatably disposed on the seat cushion and connected to the floor lock device, and has a first contact portion; the seat provides a second contact portion, the second contact portion rotating synchronously with the backrest; the drive member provides power to unlock the seat adjuster and drive the first follower member to rotate such that the first contact portion is located in the movement path of the second contact portion; flipping the backrest allows the second contact portion to rotate along the movement path, abutting against the first contact portion, thereby driving the first follower member to rotate to unlock the floor lock device.

[0018] A means of transport according to a third aspect of this application includes a seat as described in the first aspect. Attached Figure Description

[0019] The above and other features, properties, and advantages of this application will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always denote the same features. It should be noted that these drawings are merely illustrative and are not drawn to scale, and should not be construed as limiting the scope of protection actually claimed by this application, wherein:

[0020] Figure 1 This is a structural schematic diagram of a vehicle and its seat according to one embodiment.

[0021] Figure 2 This is a structural schematic diagram of a seat according to one embodiment.

[0022] Figure 3 This is a schematic diagram of a seat in one embodiment, showing its adjuster, floor lock, and slide rail in a locked state.

[0023] Figure 4 for Figure 3 The diagram shows a seat with its adjuster unlocked and the backrest flipped forward.

[0024] Figure 5 for Figure 4 The diagram shows a seat with its floor lock device unlocked and the seat cushion flipped forward.

[0025] Figure 6 for Figure 5 The diagram shows a seat with its sliding rail mechanism unlocked and the seat cushion moving forward.

[0026] Figure 7This is a schematic diagram of the structure of the drive component of a seat and its easy-access device according to one embodiment.

[0027] Figure 8 for Figure 7 The diagram shown illustrates the power supply to the seat via its drive mechanism.

[0028] Figure 9 This is a partial structural schematic diagram of a seat according to one embodiment.

[0029] Figure 10 This is a schematic diagram of the structure of a seat and its easy-access device according to an embodiment.

[0030] Figure 11 for Figure 10 The diagram shows the movement path of the seat as it rotates from the first contact part to the second contact part.

[0031] Figure 12 for Figure 10 The diagram shows a seat whose backrest drives the first follower to rotate.

[0032] Figure 13 This is a structural schematic diagram of a seat and its angle adjuster unlocking component according to an embodiment.

[0033] Figure 14 This is a schematic diagram of the structure of a seat and its levers according to one embodiment.

[0034] Figure 15 This is a schematic diagram of the structure of a seat and its backrest limiting structure according to one embodiment.

[0035] Figure 16 This is a schematic diagram of the structure of a seat and its easy-access device according to an embodiment.

[0036] Figure 17 This is a schematic diagram of the structure of the second and third elastic members of a seat according to one embodiment.

[0037] Figure 18 This is a schematic diagram of a seat with its floor lock device in a locked state, as shown in one embodiment.

[0038] Figure 19 for Figure 18 The diagram shown illustrates the seat with its floor lock device in the unlocked state.

[0039] Figure 20 This is a structural schematic diagram of a seat and its second follower according to one embodiment.

[0040] Figure 21 for Figure 20 The diagram shows the seat and its second follower unlocking slide rail.

[0041] Figure label:

[0042] 1. Means of transportation;

[0043] 10. Seats;

[0044] 11. Backrest;

[0045] 12. Seat cushion; 121. Seat cushion support; 122. Linkage mechanism; 123. Front linkage; 124. Rear linkage;

[0046] 13. Angle adjuster; 131. Backrest limiting structure; 132. Third stop; 133. Fourth stop; 134. Third limiting component;

[0047] 14. Ground lock device; 141. Lock hook; 142. Lock bar;

[0048] 15. Slide rail device; 151. Upper rail; 152. Lower rail; 153. Locking block; 154. Locking hole;

[0049] 161. First horizontal tube; 162. Second horizontal tube;

[0050] 20. Accessible device;

[0051] 21. Driving components;

[0052] 22. First follower; 221. First contact portion; 222. Second contact portion; 223. Fourth contact portion; 224. Fifth contact portion;

[0053] 23. First limiting member; 231. First stop; 232. Second stop;

[0054] 24. Second follower; 241. Curved wall surface; 242. Unlocking part of slide rail device;

[0055] 25. Lever; 251. Fulcrum; 252. Point of application of effort; 253. Point of application of resistance;

[0056] 26. Angle adjuster unlocking component;

[0057] 27. Second limiting component;

[0058] 281. First cable; 282. Second cable; 283. Third cable; 284. Fourth cable;

[0059] 291. First elastic element; 292. Second elastic element; 293. Third elastic element;

[0060] x1. First axis; x2. Second axis. Detailed Implementation

[0061] Reference will now be made in detail to various embodiments of this application, examples of which are shown in the accompanying drawings and described below. Although this application will be described in conjunction with exemplary embodiments, it should be understood that this application is not intended to be limited to those exemplary embodiments. Rather, this application is intended to cover not only these exemplary embodiments, but also various alternatives, modifications, equivalents, and other embodiments that may be included within the spirit and scope of this application as defined by the appended claims.

[0062] This application uses specific terms to describe embodiments of the application. For example, "an embodiment" and / or "one embodiment" refers to a feature, structure, or characteristic associated with at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment" or "one embodiment" mentioned twice or more in different locations in this application does not necessarily refer to the same embodiment. Furthermore, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined. In the following description, the orientation or positional relationship indicated by terms such as "upper," "lower," "inner," "outer," "front," "rear," or other directional terms is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or part referred to must have a specific orientation, be constructed and / or implemented in a specific orientation, and therefore should not be construed as a limitation of the application. In this application, the terms "first," "second," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying positional relationships or order of importance. In the following description, unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly; for example, they can refer to fixed connections or movable connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0063] It is understood that the easy-access device and seat provided in this application are particularly suitable for automobiles, but can also be applied to other means of transportation, such as rail trains, ships, aircraft, etc., and can also be applied to suitable fixed places, such as meeting rooms, auditoriums, cinemas, etc. As long as the application occasion requires the seat to be adjusted through the easy-access device to make room for easy passage, and the easy-access device disclosed in the embodiments of this application can be used, without being limited thereto.

[0064] It should be noted that in the following description, the front-back direction, left-right direction, and up-down direction refer to the X, Y, and Z directions as shown in the attached diagram, or the longitudinal, lateral, and vertical directions of the seat, and are not limited thereto.

[0065] See Figure 1The vehicle 1 shown, such as a car, includes a seat 10 with an easy access device 20, which makes space available by operating the easy access device 20 to facilitate the passage of passengers.

[0066] In some embodiments, the seat 10 is located near the cabin door of the vehicle 1 to facilitate entry and exit of occupants, and / or is configured as a front seat to facilitate entry and exit of occupants of the rear seats, etc., without limitation.

[0067] See Figure 1 , Figure 2 The seat 10 shown includes a backrest 11, a seat cushion 12, and an easy-access device 20. The backrest 11 and seat cushion 12 are connected by an adjuster 13, which can lock or unlock the rotation of the backrest 11 relative to the seat cushion 12. The seat cushion 12 is rotatably mounted on a mounting base, and a floor lock device 14 is provided between the seat cushion 12 and the mounting base. The floor lock device 14 can lock or unlock the rotation of the seat cushion 12 relative to the mounting base. The mounting base refers to a structure that provides the mounting position for the seat cushion 12, such as a sliding rail device 15 or a cabin floor.

[0068] like Figure 16 As shown, in some embodiments, the seat 10 includes two angle adjusters 13 and two floor lock devices 14 distributed on both sides in the left-right direction (Y direction in the figure) to act on both sides of the seat 10 in the left-right direction, respectively.

[0069] like Figure 9 As shown, in some embodiments, the unlocking structures of the angle adjusters 13 located on both sides in the left and right directions are respectively connected to the two ends of the first horizontal tube 161. The first horizontal tube 161 provides power to the unlocking structures on both sides by rotating around the central axis, which can unlock the angle adjusters 13 on both sides simultaneously, thus simplifying the structure.

[0070] like Figure 18 , Figure 19 As shown, in some embodiments, the floor lock device 14 includes a locking rod 142 and a locking hook 141; the locking rod 142 is fixed to the mounting base, and the locking hook 141 is disposed at the rear of the seat cushion 12; in the locked state of the floor lock device 14, the locking hook 141 cooperates with the locking rod 142 to restrict the flipping of the seat cushion 12; in the unlocked state of the floor lock device 14, the locking hook 141 disengages from the locking rod 142, thereby allowing the seat cushion 12 to flip forward.

[0071] See Figure 2 , Figures 7 to 21The easy-access device 20 shown is adapted to the seat 10 and includes a drive member 21 and a first follower member 22. The drive member 21 is connected to the angle adjuster 13 and the first follower member 22; the first follower member 22 is rotatably disposed on the seat cushion 12 and connected to the floor lock device 14, and is provided with a first contact portion 221; the seat 10 provides a second contact portion 222, which can rotate synchronously with the backrest 11.

[0072] Specifically, in some embodiments, the driver 21 is configured as follows: Figure 7 The hand slot shown; it can be understood that the drive component 21 can also be configured as other manually operated components, such as handles, buttons, or configured as electric, pneumatic, or hydraulic actuators, and is not limited thereto; such as Figure 16 As shown, the drive component 21 is connected to the angle adjuster 13 via a first cable 281, and the drive component 21 is connected to the first follower component 22 via a second cable 282. The first cable 281 and the second cable 282 can also be configured as a single, forked cable, without limitation. The first follower component 22 is also connected to the ground lock device 14 via a cable (e.g., the third cable 283 shown in the figure). For cases where angle adjusters 13 and / or ground lock devices 15 are provided on both sides in the left-right direction, the first cable 281 and / or the third cable 283 can also be configured as a single, forked cable, without limitation. Using cables allows for flexible selection of the installation positions of the drive component 21, the first follower component 22, the angle adjuster 13, and the ground lock device 14, etc. Figure 9 As shown, the second contact portion 222 is provided by a component of the angle adjuster 13 that is fixedly connected to the backrest 11.

[0073] like Figures 8 to 11 As shown, the drive unit 21 provides power to the adjuster 13 and the first follower 22, enabling the adjuster 13 to unlock and the first follower 22 to rotate, such that the first contact portion 221 is positioned on the movement path of the second contact portion 222; thus, flipping the backrest 11 causes the second contact portion 222 to rotate along this movement path, abutting against the first contact portion 221, driving the first follower 22 to continue rotating, thereby unlocking the floor lock device 14. In some embodiments, during the operation of the easy access device 20, for example... Figure 8 As shown, rotating the lever groove provides power; as Figure 11 As shown, the first cable 281 pulls and unlocks the angle adjuster 13, allowing the backrest 11 to rotate relative to the seat cushion 12. The second cable 282 pulls the first follower 22 to rotate, causing the first contact portion 221 to rotate onto the movement path of the second contact portion 222, and the first follower 22 drives the third cable 283; Figure 12As shown, when the backrest 11 is flipped over, the second contact part 222 will rotate along the movement path with the backrest 11, abut against the first contact part 221 and drive the first follower 22 to continue to rotate, thereby continuing to drive the third cable 283 to provide the movement and force to unlock the ground lock device 14.

[0074] Using the aforementioned easy-access device 20, the angle adjuster 13 can be unlocked via the drive unit 21, and the floor lock device 14 can be unlocked in conjunction with the flipping motion of the backrest 11, thereby achieving two actions: flipping the backrest 11 and flipping the seat cushion 12, allowing the seat 10 to create more space. It is understood that the movement and force required to unlock the angle adjuster 13 and the floor lock device 14 are usually unequal. If the drive unit 21 is used to simultaneously provide the movement and force to unlock both the angle adjuster 13 and the floor lock device 14, not only would a large amount of movement and force be required, but it would also lead to the problem of excessive force input for the component with the smaller force requirement. The design of the first follower 22... The movement path required to unlock the angle adjuster 13 and reach the second contact 222 via the drive component 21 is relatively small. During the flipping of the backrest 11, the second contact 222 rotates along the movement path with the backrest 11, abutting against the first contact 221 and driving the first follower 22 to continue rotating. Thus, the movement and force of the flipping of the backrest 11 are used to unlock the floor lock device 14. First, the angle adjuster 13 is unlocked by operating the drive component 21, then the backrest 11 is flipped and the floor lock device 14 is unlocked, and then the seat cushion 12 is flipped. The backrest 11 and seat cushion 12 are unlocked and flipped sequentially from top to bottom, making the operation simple and smooth.

[0075] It is understood that the above-described easy-entry device 20 is particularly suitable for applications where the fore-and-aft sliding adjustment of the seat 10 is limited, and the easy-entry function is achieved by flipping and adjusting the backrest 11 and the seat cushion 12, but is not limited thereto.

[0076] It is understood that when an occupant passes by, the backrest 11 and seat cushion 12 of the seat 10 are roughly located at the occupant's shoulders and hips. Therefore, by flipping and adjusting the backrest 11 and seat cushion 12, an easy entry function can be achieved, which is especially suitable for applications that avoid the occupant's shoulders and hips, but is not limited thereto.

[0077] like Figures 18 to 21As shown, in some embodiments, the mounting base is a slide rail device 15 for adjusting the front-to-back position of the seat cushion 12. The slide rail device 15 includes an upper rail 151, a lower rail 152, and a locking block 153. The upper rail 151 and the lower rail 152 are movably connected in the front-to-back direction (X direction in the figure), and the locking block 153 is movably disposed on the lower rail 152 in the vertical direction (Z direction in the figure). The upper rail 151 has a locking hole 154, through which the locking block 153 passes to lock the slide rail device 15. The seat cushion 12 includes a seat cushion support 121 and a linkage mechanism 122, through which the seat cushion 12 is flipped relative to the slide rail device 15. The linkage mechanism 122 includes a connecting rod, one end of which is rotatably connected to the seat cushion support 121, and the other end of which is rotatably connected to the upper rail 151 around a first axis x1; for example... Figure 20 As shown, the linkage mechanism 122 includes a front linkage 123 and a rear linkage 124, forming a four-bar linkage 122 with the upper rail 151 and the seat support 121. The easy-access device 20 also includes a second follower 24, which is rotatably mounted on the upper rail 151 around a second axis x2. The second follower 24 has an arc-shaped wall 241 and a slide rail device unlocking part 242. The arc-shaped wall 241 is eccentrically arranged around a first axis x1. The linkage (such as the rear linkage 124 shown in the figure) provides a third contact part that abuts against the arc-shaped wall 241. The flipped seat 12 allows the linkage to rotate relative to the upper rail 151 around the first axis x1. The third contact part rotates with the connecting rod and moves along the arc-shaped wall 241. Since the arc-shaped wall 241 is eccentrically set relative to the first axis, the rotation of the third contact part around the first axis x1 will drive the second follower 24 to rotate around the second axis x2. As a result, the slide rail device unlocking part 242 of the second follower 24 presses the locking block 153, causing the locking block 153 to move downward to disengage from the lock hole 154, thereby unlocking the slide rail device 15, so that the seat 10 can be moved and adjusted in the front and back direction.

[0078] The design of the second follower 24, based on the two actions of flipping the backrest 11 and flipping the seat cushion 12 through the easy access device 20, uses the flipping movement of the seat cushion 12 to unlock the slide rail device 15, thereby realizing the forward and backward movement adjustment of the seat 10, allowing the seat 10 to make room for more space; the backrest 11, seat cushion 12 and slide rail device 15 are unlocked and linked sequentially from top to bottom, making the operation simple and smooth; it can be understood that adjusting the seat forward through the slide rail device 15 is particularly convenient for the occupant's feet to pass through.

[0079] like Figures 3 to 6 As shown, in some embodiments, the seat 10 is configured with an easy-entry structure, wherein the backrest 11 is flipped forward, the seat cushion 12 is flipped forward, and the seat cushion 12 moves forward via a slide rail device 15 (e.g., Figure 6(As shown); by operating the easy access device 20, the seat 10 is moved from... Figure 3 The initial state structure shown enters as follows Figure 6 During the process of entering the easily accessible state structure shown, power is provided by the drive unit 21, causing the angle adjuster 13 to unlock, so that the backrest can be flipped forward, as shown. Figure 4 As shown; then the backrest 11 flips forward, unlocking the floor lock device 14, so that the seat cushion flips forward, as shown. Figure 5 As shown; then the seat cushion 12 flips forward, unlocking the slide rail device 15, thereby allowing the seat cushion 12 to move forward via the slide rail device 15, as shown. Figure 6 As shown. With this design, during the operation of the easily accessible device, all components move in the same direction (forward), making the operation process simple and smooth by applying force in the same direction.

[0080] like Figure 7 , Figure 8 As shown, in some embodiments, the drive unit is located in the upper part of the backrest, and power is provided by flipping the backrest forward. With this design, the drive unit is located in the upper part of the backrest, which makes it easy to perform the linkage operation from the backrest to the seat cushion and then to the slide rail device from top to bottom, and the entire operation process is completely directional, simple and smooth.

[0081] like Figures 9 to 12 As shown, in some embodiments, the easy-access device 20 further includes a first limiting member 23; the first limiting member 23 is provided with a first stop portion 231 and a second stop portion 232; for example, as shown in the figure, the first limiting member 23 is generally L-shaped, and the first stop portion 231 and the second stop portion 232 extend in two directions respectively; the first follower member 22 is correspondingly provided with a fourth contact portion 223 and a fifth contact portion 224; the first stop portion 231 and the second stop portion 232 are respectively used to stop the fourth contact portion 223 and the fifth contact portion 224 to limit the rotation range of the first follower member 22. Figure 10 As shown, when the easy-access device 20 is not operated, the first follower 22 is in its initial position, and the second stop 232 and the fifth contact 224 abut against each other to restrict the rotation of the first follower 22; furthermore, since the second contact 222 does not abut against the first contact 221, the second contact 222 and the backrest 11 are not restricted from rotating by the first limiting member 23. Figure 12As shown, when the easy access device 20 is operated, the second contact portion 222 abuts against and drives the first follower 22 to rotate until the fourth contact portion 223 abuts against the first stop portion 231, thereby limiting the angle of the second contact portion 222 and the backrest 11. With this design, the travel range of the backrest 11 can be switched by the cooperation of the first follower 22 and the first limiter 23; when the easy access device 20 is operated, the backrest 11 is rotated to a specific angle, thereby allowing the seat 10 to make sufficient space and facilitating the application of force by appropriately selecting the angle; when the easy access device 20 is not operated, the second contact portion 222, the backrest 11 and the angle adjuster 13 are not restricted by the first limiter 23, so that the backrest 11 and the angle adjuster 13 can be adjusted in use situations such as when the seat 10 is in normal use.

[0082] like Figure 10 As shown, in some embodiments, the easy-access device 20 further includes a first elastic element 291 for providing an elastic force to drive the first follower 22 back to its initial position. For example, a torsion spring as shown in the figure is used, with its two ends connected to the seat cushion 12 and the first follower 22, respectively.

[0083] like Figure 9 , Figure 13 As shown, in some embodiments, the easy-access device 20 further includes an angle adjuster unlocking member 26 and a second limiting member 27. The angle adjuster unlocking member 26 is disposed between the driving member 21 and the angle adjuster 13. The driving member 21 unlocks the angle adjuster 13 by driving the angle adjuster unlocking member 26. The second limiting member 27 is used to limit the displacement of the angle adjuster unlocking member 26. Specifically, the angle adjuster unlocking member 26 may be fixedly connected to the first horizontal tube 161. When the driving member 21 drives the angle adjuster unlocking member 26, the angle adjuster unlocking member 26 drives the first horizontal tube 161 to rotate to unlock the angle adjuster 13. By using the angle adjuster unlocking member 26 and the second limiting member 27, the movement distance of operating the driving member 21 and unlocking the angle adjuster 13 can be limited, avoiding damage caused by misuse.

[0084] like Figure 14 As shown, in some embodiments, the easy-access device 20 further includes a lever 25 disposed between the first follower 22 and the ground lock device 14. The power provided by the first follower 22 is transmitted to the ground lock device 14 through the lever 25 to unlock the ground lock device 14. Using the lever 25 can save effort or distance, converting the force and movement provided by the first follower 22 into the force and movement required to unlock the ground lock device 14; for example... Figure 14As shown, lever 25 is rotatably connected to seat support 121 via fulcrum 251. First follower 22 is connected to the power application point 252 of lever 25 via third cable 283. Unlocking component of floor lock device 14 is connected to the resistance application point 253 of lever 25 via fourth cable 284. Power application point 252 is closer to fulcrum 251, so lever 25 is distance-saving. First follower 22 only needs to provide a small movement, making easy access device 20 easy to operate.

[0085] like Figure 16 As shown, in some embodiments, the drive member 21 and the angle adjuster 13 are connected by a first cable 281; and / or, the drive member 21 and the first follower 22 are connected by a second cable 282; and / or, the first follower 22 and the lever 25 are connected by a third cable 283; and / or, the lever 25 and the ground lock device 14 are connected by a fourth cable 284.

[0086] It can be understood that during the operation of the easy access device 20, the weight of the backrest 11 itself can drive the backrest 11 to flip forward, making the operation less strenuous. In some embodiments, the easy access device 20 further includes a second elastic member 292, which provides an elastic force to drive the backrest 11 to flip forward, making the operation of flipping the backrest 11 even less strenuous; for example, using Figure 17 The torsion spring shown has one end connected to the backrest 11 and the other end connected to the seat cushion 12, and its middle part passes through the cross tube at the rear of the seat 10 to save space.

[0087] In some embodiments, the easy-access device 20 further includes a third elastic element 293, which provides an elastic force to drive the seat cushion 12 to flip forward, making the operation of flipping the seat cushion 12 easier; for example, using Figure 17 The torsion spring shown has one end connected to the seat support 121 and the other end connected to the front link 123. It provides elastic force to drive the front link 123 to rotate relative to the seat support 121 to drive the seat 12 to flip. Its middle part passes through the second cross tube 162 at the front of the seat 12 to save space.

[0088] It is understood that in some embodiments, the seat 10 also includes an adjuster 13 unlocking structure capable of independently unlocking the adjuster 13 and a backrest limiting structure 131 for limiting the rotation range of the backrest 11, for flipping and adjusting the backrest 11 when the easy access device 20 is not operated; the adjuster 13 unlocking structure and the backrest limiting structure 131 can be configured as structures commonly used in the art for unlocking the adjuster 13 and limiting the flipping of the backrest 11; the rotation range of the backrest 11 defined by the backrest limiting structure 131 is generally larger than the rotation range defined by the first limiting member 23; for example Figure 15As shown, the backrest limiting structure 131 includes a third stop 132 and a fourth stop 133 fixed to the seat cushion 12, and a third limiting member 134 fixed to the backrest 11. The first limiting member 23 cooperates with the third stop 132 and the fourth stop 133 to define the two end positions of the rotation range of the backrest 11, for example, limiting the backrest 11 to be flipped forward to approximately fit against the seat cushion 12.

[0089] In summary, the beneficial technical effects of this application include, but are not limited to, at least one of the following:

[0090] Using the aforementioned easy-access device, the angle adjuster can be unlocked via the drive mechanism, and the floor lock device can be unlocked in conjunction with the backrest's flipping motion, thus achieving both backrest and seat cushion flipping actions, allowing the seat to create more space. It is understood that the movement and force required to unlock the angle adjuster and the floor lock device are usually unequal. If the drive mechanism is used to simultaneously provide the movement and force for unlocking both the angle adjuster and the floor lock device, not only is a large amount of movement and force required, but it can also lead to the problem of excessive force input for the component with the lower force requirement. Therefore, the first... The design of the follower component is simple: unlocking the angle adjuster and moving the first contact part to the second contact part are achieved through the driving component, requiring relatively little force and movement. During the backrest flipping process, the second contact part rotates along the movement path with the backrest, abutting against the first contact part and driving the first follower component to continue rotating. Thus, the motion and force of the backrest flipping are used to unlock the floor lock device. First, the angle adjuster is unlocked by operating the driving component, then the backrest is flipped and the floor lock device is unlocked in conjunction, and then the seat cushion is flipped. The backrest and seat cushion are unlocked and flipped sequentially from top to bottom, making the operation simple and smooth.

[0091] While this application discloses preferred embodiments as described above, it is not intended to limit the scope of this application. Any changes and modifications can be made by those skilled in the art without departing from the spirit and scope of this application. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application, without departing from the content of the technical solution of this application, fall within the protection scope defined by the claims of this application.

Claims

1. A seat (10), characterized in that, Includes a backrest (11) and a seat cushion (12), the backrest (11) and the seat cushion (12) are connected by an adjuster (13), the adjuster (13) can lock or unlock the flipping of the backrest (11) relative to the seat cushion (12), the seat cushion (12) is flipped and mounted on the mounting base, and a floor lock device (14) is provided between the seat cushion (12) and the mounting base, the floor lock device (14) can lock or unlock the flipping of the seat cushion (12) relative to the mounting base; The seat (10) also includes an access device (20); The easy-access device (20) includes a drive element (21) and a first follower element (22); wherein, The drive (21) connects the angle adjuster (13) and the first follower (22). The first follower (22) is rotatably disposed on the seat cushion (12) and connected to the ground lock device (14), and is provided with a first contact portion (221). The seat (10) provides a second contact portion (222) that rotates synchronously with the backrest (11); The drive member (21) provides power to unlock the angle adjuster (13) and drive the first follower (22) to rotate so that the first contact (221) is located in the movement path of the second contact (222); thereby, flipping the backrest (11) can cause the second contact (222) to abut against the first contact (221), driving the first follower (22) to rotate to unlock the floor lock device (14).

2. The seat (10) according to claim 1, characterized in that, The mounting base is a slide rail device (15) for adjusting the front and rear position of the seat cushion (12); the slide rail device (15) includes an upper rail (151), a lower rail (152) and a locking block (153). The upper rail (151) and the lower rail (152) are movably connected in the front and rear direction, and the locking block (153) is movably disposed on the lower rail (152) in the vertical direction. The upper rail (151) is provided with a locking hole (154), and the locking block (153) passes through the locking hole (154) to lock the slide rail device (15). The seat cushion (12) includes a seat cushion support (121) and a linkage mechanism (122). The linkage mechanism (122) enables the seat cushion (12) to flip relative to the slide rail device (15). The linkage mechanism (122) includes a link, one end of which is rotatably connected to the seat cushion support (121), and the other end of which is rotatably connected to the upper rail (151) around a first axis (x1). The easy access device (20) further includes a second follower (24), which is rotatably disposed on the upper rail (151). The second follower (24) is provided with an arc-shaped wall surface (241) and a slide rail device unlocking part (242). The arc-shaped wall surface (241) is eccentrically disposed around the first axis (x1). The link provides a third contact portion (123) that abuts against the arcuate wall surface (241). Flipping the seat cushion (12) allows the connecting rod to rotate relative to the upper rail (151), the third contact part (123) moves along the arc-shaped wall (241) to drive the second follower (24) to rotate, and the slide rail device unlocking part (242) presses the locking block (153) to unlock the slide rail device (15).

3. The seat (10) according to claim 2, characterized in that, The seat (10) is equipped with an easy-access structure, which is configured as follows: The backrest (11) flips forward, the seat cushion (12) flips forward, and the seat cushion (12) moves forward via the slide rail device (15); During the operation of the easy access device (20) to enable the seat (10) to achieve the easy access state structure, the drive (21) provides power to unlock the angle adjuster (13), then the backrest (11) flips forward to unlock the floor lock device (14), then the seat cushion (12) flips forward to unlock the slide rail device (15), and then the seat cushion (12) moves forward via the slide rail device (15).

4. The seat (10) according to claim 1, characterized in that, The easy-access device (20) further includes a first limiting member (23); the first limiting member (23) is provided with a first stop (231) and a second stop (232); the first follower (22) is correspondingly provided with a fourth contact (223) and a fifth contact (224); the first stop (231) and the second stop (232) are respectively used to stop the fourth contact (223) and the fifth contact (224) to limit the rotation range of the first follower (22); The second contact portion (331) drives the first follower (22) to rotate, so that the first stop portion (231) stops the fourth contact portion (223) to limit the angle of the backrest (11) to flip.

5. The seat (10) according to claim 1, characterized in that, The easy access device (20) further includes a lever (25) disposed between the first follower (22) and the ground lock device (14); the first follower (22) and the lever (25) are connected by a third cable (283); the lever (25) and the ground lock device (14) are connected by a fourth cable (284); the power provided by the first follower (22) is transmitted to the ground lock device (14) through the lever (25) to unlock the ground lock device (14).

6. The seat (10) according to claim 1, characterized in that, The easy-access device (20) further includes an angle adjuster unlocking member (26) and a second limiting member (27). The angle adjuster (13) unlocking member is disposed between the driving member (21) and the angle adjuster (13). The driving member (21) unlocks the angle adjuster (13) by driving the angle adjuster (13) unlocking member. The second limiting member (27) is used to limit the displacement of the angle adjuster unlocking member (26).

7. The seat (10) according to claim 1, characterized in that: The drive member (21) and the angle adjuster (13) are connected by a first cable (281); and / or, the drive member (21) and the first follower (22) are connected by a second cable (282).

8. The seat (10) according to claim 1, characterized in that: The access device (20) further includes a first elastic element (292) for providing an elastic force to drive the first follower (22) to reset; and / or, The easy-access device (20) further includes a second elastic element (291) for providing an elastic force to drive the backrest (11) to flip forward; and / or, The easy-access device (20) further includes a third elastic element (293) for providing an elastic force to drive the seat cushion (12) to flip forward; and / or, The drive element (21) is a handrail groove located on the upper part of the backrest (11), which provides power by flipping the handrail groove forward; and / or, The seat (10) also includes an adjuster unlocking structure capable of unlocking the adjuster (13) separately and a backrest limiting structure (131) for limiting the rotation range of the backrest (11).

9. An easily accessible device (20), characterized in that, Adapted to the seat (10) as described in any one of claims 1 to 8; The easy-access device (20) includes the driving member (21) and the first follower member (22); wherein, The drive (21) connects the angle adjuster (13) and the first follower (22). The first follower (22) is rotatably disposed on the seat cushion (12) and connected to the ground lock device (14), and is provided with a first contact portion (221). The seat (10) provides a second contact portion (222) that rotates synchronously with the backrest (11); The drive member (21) provides power to unlock the angle adjuster (13) and drive the first follower (22) to rotate so that the first contact (221) is located in the movement path of the second contact (222); flipping the backrest (11) causes the second contact (222) to rotate along the movement path and abut against the first contact (221), driving the first follower (22) to rotate to unlock the floor lock device (14).

10. A means of transportation (1), characterized in that, Includes the seat (10) as claimed in any one of claims 1 to 8.

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