Automobile seat and automobile
By introducing an intermediate link in the four-link mechanism, the problems of unstable forward tilt and low space utilization of traditional seats are solved, and more stable and larger forward tilt angles are achieved, providing better avoidance and space utilization.
Patent Information
- Application Number
- CN202422133645.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-30
AI Technical Summary
The traditional four-link mechanism is unstable when the seat is tilted forward and the forward degree is insufficient, resulting in the second row of seats being unable to effectively avoid the third row of personnel when the seats are tilted forward, and the space utilization rate is poor.
An intermediate connecting rod is introduced into the four-link mechanism, and the two ends of the intermediate connecting rod are hinged with the mounting bracket and the seat body respectively to form an additional motion trajectory, improving the stability and forward tilt of the seat body during forward tilt movement.
Through the arrangement of the intermediate connecting rod, the seat body is more stable when tilting forward, avoiding shaking, and having a greater degree of forward tilt, providing more space for avoidance, making full use of the space below the seat.
Smart Images
Figure CN222988016U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobiles, and more specifically, to an automobile seat and an automobile. Background Art
[0002] With the increase in the population of social families, people have higher and higher requirements for the space of automobiles and hope to carry more people. Therefore, in addition to the first-row seats and the second-row seats, automobiles with third-row seats are popular among some families. In order to facilitate people to enter and exit the third-row seats, in the prior art, some second-row seats usually use a four-bar linkage mechanism to achieve the function of tilting forward. When people in the third row need to enter and exit, the second-row seats can tilt forward to provide space for people in the third row to enter and exit. However, the traditional four-bar linkage mechanism used to achieve the tilting-forward function not only causes instability during the tilting-forward movement of the seat, but also to a certain extent, the tilting degree of the second-row seat is small, and only a small avoidance space can be provided for people in the third row to enter and exit. Moreover, due to the small tilting degree, the space under the cushion part of the seat is still large, and the space is not effectively utilized. Summary of the Utility Model
[0003] The utility model aims to solve at least one of the above technical problems.
[0004] To solve the above problems, the utility model provides an automobile seat, which includes a seat body, a mounting bracket, and a link assembly. The link assembly includes a first link, a second link, and an intermediate link. One ends of the first link, the second link, and the intermediate link are respectively hinged to the mounting bracket, and the other ends of the first link, the second link, and the intermediate link are respectively hinged to the seat body. Wherein, the first link, the second link, the mounting bracket, and the seat body form a four-bar linkage mechanism, and the intermediate link is located between the first link and the second link.
[0005] An automobile seat provided by the utility model, compared with the prior art, has but is not limited to the following technical effects:
[0006] The seat body can be mounted on the floor of the automobile through the mounting bracket. The same as the prior art, the seat body and the mounting bracket can form a four-bar linkage mechanism through the first link and the second link. When the seat body tilts forward, the four-bar linkage mechanism provides a tilting-forward trajectory for the movement of the seat body. The difference from the prior art is that the automobile seat further includes an intermediate link located between the first link and the second link. Like the first link and the second link, both ends of the intermediate link are respectively hinged to the mounting bracket and the seat body. The setting of the intermediate link can at least ensure that the seat body is more stable during the tilting-forward movement and avoid shaking during the tilting-forward movement of the seat body.
[0007] Furthermore, two connecting rod assemblies are provided, and the two connecting rod assemblies are respectively located on two lateral sides of the seat body; the middle connecting rod and the first connecting rod and the second connecting rod are located in the same plane.
[0008] Further, a line connecting a hinge point between the first connecting rod and the seat body and a line connecting a hinge point between the second connecting rod and the seat body is a first connecting line, and a hinge point between the intermediate connecting rod and the seat body is located on a side of the first connecting line facing the mounting bracket;
[0009] And / or, a line connecting a hinge point between the first connecting rod and the mounting bracket and a line connecting a hinge point between the second connecting rod and the mounting bracket is a second connecting line, and a hinge point between the intermediate connecting rod and the mounting bracket is located on a side of the second connecting line facing the seat body;
[0010] And / or, among the first connecting rod, the second connecting rod and the intermediate connecting rod, the intermediate connecting rod has the shortest length and the first connecting rod has the longest length.
[0011] Furthermore, the mounting bracket is a slide rail structure, which includes a fixed rail and a sliding rail, the sliding rail is slidably connected to the fixed rail, and one end of the first connecting rod, the second connecting rod and the intermediate connecting rod are respectively hinged to the sliding rail.
[0012] Furthermore, the car seat also includes a toggle structure and a slide rail locking switch, the slide rail locking switch is used to lock or unlock the sliding rail and the fixed rail, the first link, the second link and one of the middle links is a setting link, and the setting link is provided with the toggle structure. When the seat body tilts forward, the setting link drives the toggle structure to press the slide rail locking switch to unlock the sliding rail and the fixed rail.
[0013] Furthermore, the slide rail locking switch is a mechanical locking switch, which includes a locking column and a lifting spring. The slide rail is provided with a locking hole. One end of the lifting spring is connected to the fixed rail, and the other end of the lifting spring is connected to the locking column. The lifting spring is used to drive the locking column to insert into the locking hole so that the slide rail is locked with the fixed rail. When the seat body tilts forward, the setting link drives the toggle structure to press the locking column and move it out of the locking hole.
[0014] Furthermore, the car seat also includes a slide rail unlocking rod, the position between the two ends of the slide rail unlocking rod is hinged to the slide rail, and a pressure plate is provided at the rear end of the slide rail unlocking rod, and the pressure plate is located above the lock column. A notch is provided on the side of the pressure plate close to the four-bar mechanism, wherein, when the seat body tilts forward, the setting link drives the toggle structure to move from the notch to above the pressure plate and presses down the pressure plate, so as to drive the lock column to move out of the lock hole through the pressure plate.
[0015] Furthermore, the seat body includes a backrest frame, a seat basin frame, a seat fixing frame, an angle adjuster and a seat linkage rod, one end of the backrest frame is connected to one end of the seat fixing frame through the angle adjuster, the second connecting rod and the middle connecting rod are respectively hinged to different positions of the other end of the seat fixing frame, the front end of the seat basin frame is fixed to one end of the seat linkage rod, the other end of the seat linkage rod is hinged to the backrest frame, and the hinge point of the seat linkage rod and the backrest frame is located above the angle adjuster, and the first connecting rod is hinged to the front end of the seat basin frame or the end of the seat linkage rod away from the backrest frame.
[0016] Furthermore, the car seat further comprises an unlocking harness, a ground lock device, a ground lock matching device and a booster spring, wherein the ground lock device is arranged on the seat body, the unlocking harness is connected to the ground lock device, the ground lock matching device and the booster spring are respectively arranged on the mounting bracket, and the booster spring is located behind the four-bar linkage;
[0017] When the unlocking harness pulls the first locking structure of the ground lock device to unlock the first locking matching structure of the ground lock matching device, the assist spring is used to drive the seat body to tilt forward until the second locking structure of the ground lock device is matched and locked with the second locking matching structure of the ground lock matching device.
[0018] The utility model also provides a car, comprising the car seat as mentioned above.
[0019] Since the technical improvements and technical effects of the automobile are the same as those of the automobile seat, the vehicle will not be described in detail. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 The structure of the car seat in the sitting position according to the embodiment of the utility model is shown in FIG. Figure 1 ;
[0021] Figure 2 It is a schematic diagram of the exploded structure of the automobile seat in the sitting position according to the embodiment of the utility model;
[0022] Figure 3The structure of the car seat in the sitting position according to the embodiment of the utility model is shown in FIG. Figure 2 ;
[0023] Figure 4 The structure of the car seat of the embodiment of the utility model is in a sitting position and the seat fixing frame is removed. Figure 3 ;
[0024] Figure 5 for Figure 4 The enlarged view of point A in the middle;
[0025] Figure 6 for Figure 4 The schematic diagram of the structure after removing the pressing plate;
[0026] Figure 7 The structure of the car seat of the embodiment of the utility model is in a forward tilted state and then moves forward. Figure 1 ;
[0027] Figure 8 The structure of the car seat of the embodiment of the utility model is in a forward tilted state and then moves forward. Figure 2 ;
[0028] Figure 9 for Figure 8 The enlarged view of point B in the middle;
[0029] Figure 10 It is a schematic diagram of a state in which the automobile seat of the embodiment of the utility model moves from a sitting state to a forward leaning state and then moves forward;
[0030] Figure 11 This is a schematic diagram of the structure of the backrest frame of the automobile seat after being flipped forward according to the embodiment of the utility model;
[0031] Figure 12 The schematic diagram of the position relationship between the connecting rod, the toggle structure and the pressure plate when the car seat of the embodiment of the utility model is in the sitting state Figure 1 ;
[0032] Figure 13 The schematic diagram of the position relationship between the connecting rod, the toggle structure and the pressure plate when the car seat of the embodiment of the utility model is in the sitting state Figure 2 .
[0033] Description of reference numerals:
[0034] 1. Seat body; 11. Backrest frame; 12. Seat pan frame; 13. Seat-back fixing frame; 14. Recliner; 15. Seat-back linkage rod; 2. Mounting bracket; 21. Fixed rail; 22. Sliding rail; 221. Lock hole; 31. First link; 32. Second link; 33. Intermediate link; 41. Pushing structure; 51. Lock post; 6. Slide rail unlocking rod; 61. Pressure plate; 611. Notch; 71. Floor lock device; 721. First locking and mating structure; 722. Second locking and mating structure; 73. Boosting spring; 8. Unlocking wire harness. Detailed implementation manners
[0035] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific embodiments of the present utility model with reference to the accompanying drawings. Although some embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be construed as limited to the embodiments described herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present utility model. It should be understood that the drawings and embodiments of the present utility model are only for exemplary purposes and are not used to limit the protection scope of the present utility model.
[0036] The Z-axis in the drawings represents the vertical direction, that is, the up and down position, and the positive direction of the Z-axis represents the upper side, and the negative direction of the Z-axis represents the lower side; the Y-axis in the drawings represents the left and right position, and the positive direction of the Y-axis represents the left side, and the negative direction of the Y-axis represents the right side; the X-axis in the drawings represents the longitudinal direction, that is, the front and back position, and the positive direction of the X-axis represents the front, and the negative direction of the X-axis represents the back. At the same time, it should be noted that the above-mentioned meanings represented by the Z-axis, Y-axis and X-axis are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model.
[0037] The term "including" and its variations used herein are open-ended, that is, "including but not limited to"; the term "based on" is "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts such as "first" and "second" mentioned in the present utility model are only used to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependent relationships.
[0038] It should be noted that the modifications of "one" and "plural" mentioned in the present utility model are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly specified in the context, it should be understood as "one or more".
[0039] See Figure 1-2 、 Figure 7 and Figure 10 As shown in, an automotive seat according to an embodiment of the present utility model includes a seat body 1, a mounting bracket 2, and a link assembly. The link assembly includes a first link 31, a second link 32, and an intermediate link 33. One ends (the bottom ends shown in the figure) of the first link 31, the second link 32, and the intermediate link 33 are respectively hinged to the mounting bracket 2, and the other ends (the top ends shown in the figure) of the first link 31, the second link 32, and the intermediate link 33 are respectively hinged to the seat body 1. Wherein, the first link 31, the second link 32, the mounting bracket 2, and the seat body 1 form a four-bar linkage, and the intermediate link 33 is located between the first link 31 and the second link 32.
[0040] In this embodiment, the seat body 1 can be mounted on the floor of the vehicle through the mounting bracket 2. Similar to the prior art, the seat body 1 and the mounting bracket 2 can form a four-bar linkage through the first link 31 and the second link 32. When the seat body 1 tilts forward, the four-bar linkage provides a forward tilting trajectory for the movement of the seat body 1. It should be noted that a set of the first link 31 and the second link 32 that form the four-bar linkage are arranged in sequence from front to back and are located in a plane (the two hinge points of the first link 31 and the two hinge points of the second link 32 together form a plane), and the intermediate link 33 described in this embodiment is located between the first link 31 and the second link 32, which means that in the longitudinal direction of the vehicle, the intermediate link 33 is located behind the first link 31 and in front of the second link 32. The intermediate link 33 can be located in the plane where the first link 31 and the second link 32 are located; the intermediate link 33 can also not be located in the plane but be parallel to the plane.
[0041] The difference from the prior art is that the automotive seat further includes an intermediate link 33 located between the first link 31 and the second link 32. Similar to the first link 31 and the second link 32, both ends of the intermediate link 33 are respectively hinged to the mounting bracket 2 and the seat body 1. The arrangement of this intermediate link 33 can at least ensure that the seat body 1 is more stable during the forward tilting movement and avoid shaking when the seat body 1 tilts forward.
[0042] Wherein, as Figure 1-3 shown, the first link 31, the intermediate link 33, and the second link 32 are arranged in sequence from front to back.
[0043] Optionally, refer to Figure 1-3 , two connecting rod assemblies are provided, and the two connecting rod assemblies are respectively located on the transverse sides of the seat body 1; the intermediate connecting rod 33, the first connecting rod 31 and the second connecting rod 32 are located in the same plane.
[0044] It should be noted that when there are two connecting rod assemblies, there are also two four-bar linkages. The two intermediate connecting rods 33 are respectively located at the corresponding four-bar linkages, which means that one intermediate connecting rod 33 is located at a position of the seat body 1 close to one four-bar linkage, and the other intermediate connecting rod 33 is located at a position of the seat body 1 close to the other four-bar linkage.
[0045] In this embodiment, the four-bar linkage and the intermediate connecting rod 33 are arranged on the outer sides of the seat body 1 transversely to reduce the occupied height space inside the vehicle. Compared with the case of setting a single four-bar linkage, in this embodiment, two four-bar linkages are provided, which are respectively located on the transverse sides of the seat body 1, and the stability of the forward tilting movement of the seat body 1 can be improved. When there are two four-bar linkages, two intermediate connecting rods 33 can also be provided, and the two intermediate connecting rods 33 are respectively located at the corresponding four-bar linkages; at this time, a total of six connecting rods are used for this vehicle seat, that is, two first connecting rods 31, two second connecting rods 32 and two intermediate connecting rods 33. By arranging these six connecting rods, the stability of the forward tilting movement of the seat body 1 can be ensured to a greater extent. Preferably, in a connecting rod assembly, the intermediate connecting rod 33, the first connecting rod 31 and the second connecting rod 32 are located in the same plane, which can improve the overall lateral integration of the seat, and the forward tilting movement of the seat body 1 is also more stable.
[0046] Optionally, refer to Figure 1-3 , the seat body 1 can be the same as the prior art and includes a backrest frame 11, a seat pan frame 12, a seat-back fixing frame 13, a recliner 14 and a seat-back linkage rod 15. Among them, in this embodiment, one end of the backrest frame 11 is connected to one end of the seat-back fixing frame 13 through the recliner 14. The second connecting rod 32 and the intermediate connecting rod 33 are respectively hinged to different positions at the other end of the seat-back fixing frame 13. The front end of the seat pan frame 12 is fixed to one end of the seat-back linkage rod 15. The other end of the seat-back linkage rod 15 is hinged to the backrest frame 11, and the hinge point of the seat-back linkage rod 15 and the backrest frame 11 is located above the recliner 14. The first connecting rod 31 is hinged to the front end of the seat pan frame 12 or the end of the seat-back linkage rod 15 far from the backrest frame 11.
[0047] Here, for ergonomic considerations, when the seat body 1 is in a sitting posture, the backrest frame 11 and the seat pan frame 12 are linked by the seat-back linkage rod 15, so that when the angle of the backrest frame 11 is adjusted, the angle of the seat pan frame 12 can also be adaptively adjusted. For example, when it is necessary to adjust the backrest frame 11 to rotate backward, the backrest frame 11 can be rotated backward relative to the seat-back fixed frame 13 through the angle adjuster 14; due to the existence of the seat-back linkage rod 15, when the backrest frame 11 rotates backward relative to the seat-back fixed frame 13, the front end of the seat pan frame 12 will lift upward and drive the first link 31 to rotate backward around its bottom hinge point (the hinge point of the first link 31 and the mounting bracket 2). In short, when the angle of the backrest frame 11 is adjusted, the front end of the seat pan frame 12 and the first link 31 will also move accordingly to ensure a more comfortable sitting posture for the occupant.
[0048] Similarly, when it is necessary to adjust the backrest frame 11 to rotate forward, for example, when it is necessary to flip the backrest frame 11 forward to a horizontal or nearly horizontal position (as Figure 11 shown), the backrest frame 11 can be rotated forward relative to the seat-back fixed frame 13 through the angle adjuster 14; due to the existence of the seat-back linkage rod 15, when the backrest frame 11 rotates forward relative to the seat-back fixed frame 13, the front end of the seat pan frame 12 will tilt downward and drive the first link 31 to rotate forward around its bottom hinge point (the hinge point of the first link 31 and the mounting bracket 2).
[0049] It can be understood that after the backrest frame 11 of the second-row vehicle seat is flipped forward to a horizontal or nearly horizontal position, it can be combined with the third-row vehicle seat to be flipped and laid flat to jointly realize a super-large trunk storage space. In addition, since the second link 32 and the intermediate link 33 are respectively hinged to the seat-back fixed frame 13, and the two ends of the seat-back fixed frame 13 are respectively hinged to the backrest frame 11 and the seat pan frame 12, furthermore, when the backrest frame 11 rotates forward and backward relative to the seat-back fixed frame 13, although the first link 31 will rotate forward and backward driven by the seat-back linkage rod 15, however, the second link 32 and the intermediate link 33 will not rotate forward and backward. Therefore, when the backrest frame 11 adjusts the angle of the occupant's sitting posture by rotating relative to the seat-back fixed structure through the angle adjuster 14, due to the unchanged angles of the rear intermediate link 33 and the second link 32, it is ensured that in the sitting posture state of the seat body 1, no matter how the backrest frame 11 is adjusted, the initial angles of the intermediate link 33 and the second link 32 in the sitting posture state always remain unchanged. Thus, when the seat body 1 needs to tilt forward as a whole, the intermediate link 33 and the second link 32 with always unchanged initial angles start to rotate, so that the tilting degree of the seat body 1 can be sufficient.
[0050] Optionally, refer to Figure 1-3, a connection line between the hinge point of the first link 31 and the seat body 1 and the hinge point of the second link 32 and the seat body 1 is a first connection line, and the hinge point of the intermediate link 33 and the seat body 1 is located on a side of the first connection line facing the mounting bracket 2;
[0051] And / or, a connection line between the hinge point of the first link 31 and the mounting bracket 2 and the hinge point of the second link 32 and the mounting bracket 2 is a second connection line, and the hinge point of the intermediate link 33 and the mounting bracket 2 is located on a side of the second connection line facing the seat body 1;
[0052] And / or, among the first link 31, the second link 32 and the intermediate link 33, the intermediate link 33 has the shortest length, and the first link 31 has the longest length.
[0053] It should be noted that in the prior art, since the forward tilt movement trajectory of the seat body 1 is provided by a four-bar mechanism, there will still be a problem that the forward tilt degree of the second-row seat is relatively small to a certain extent, resulting in only a small avoidance space being provided for the entry and exit of the third-row personnel; moreover, due to the relatively small forward tilt degree, there will also be a large gap between the cushion part of the seat and other structures below, and the space utilization rate is poor.
[0054] In this embodiment, the vehicle seat can also be a second-row seat. As Figure 1-3 shown, due to the provision of the intermediate link 33, and the hinge point of the top end of the intermediate link 33 and the seat body 1 (abbreviated as the top-end hinge point of the intermediate link 33) is located on a side of the first connection line facing the mounting bracket 2, that is, the top-end hinge point of the intermediate link 33 is located below the first connection line. Finally, when the four-bar mechanism moves, the forward tilt degree of the seat body 1 can be greater, and the forward-tilted seat body 1 can provide more avoidance space for the rear personnel, and it is more convenient for the third-row personnel in the rear to enter and exit the passenger compartment. Moreover, on the basis of the greater forward tilt degree of the seat body 1, the cushion part of the seat body 1 can be closer to the structure below, making full use of the space below the cushion part in the sitting posture state. In other words, when the seat body 1 in the sitting posture state needs to tilt forward, the provision of the intermediate link 33 can achieve a greater forward tilt degree of the seat body 1 to make full use of the space below the cushion part.
[0055] In this embodiment, while the top hinge point of the intermediate link 33 is located below the first connecting line, the bottom hinge point of the intermediate link 33 can also be set on the side of the second connecting line toward the seat body 1, that is, the bottom hinge point of the intermediate link 33 is set on the upper side of the second connecting line, that is, the hinge point of the intermediate link 33 is located inside the four-bar linkage. In this way, under the restriction of the intermediate link 33, after the forward tilting movement of the seat body 1 is completed, the front end of the seat basin frame 12 will drop lower, that is to say, the forward tilting degree of the seat body 1 can be increased.
[0056] In this embodiment, see Figure 1-2 , the length of the middle link 33 is the shortest, and the length of the first link 31 on the front side is the longest, which not only satisfies that the two hinge points of the middle link 33 are located between the first connecting line and the second connecting line. In addition, since the length of the first link 31 is the longest, when adjusting the angle of the backrest frame 11, since the seat basin frame 12 is linked with the backrest frame 11 through the seat-resting linkage rod 15, when the angle adjuster 14 adjusts the angle of the backrest frame 11, the first link 31 with the longest length can enable the seat basin frame 12 to have a larger angle adjustment range relative to the seat-resting fixed frame 13, and accordingly, the backrest frame 11 linked with the seat basin frame 12 can also achieve a larger range of angle adjustment, and the comfort of the passengers is higher.
[0057] Alternatively, see Figure 1-3 The mounting bracket 2 is a slide rail structure, which includes a fixed rail 21 and a sliding rail 22. The sliding rail 22 is slidably connected to the fixed rail 21, and one end of the first connecting rod 31, the second connecting rod 32 and the intermediate connecting rod 33 are respectively hinged to the sliding rail 22.
[0058] In this embodiment, as in the prior art, the mounting bracket 2 is specifically a slide rail structure, wherein a fixed rail 21 is mounted on the vehicle floor, and a sliding rail 22 is slidably connected to the fixed rail 21. In this embodiment, the bottom ends of the first connecting rod 31, the second connecting rod 32 and the intermediate connecting rod 33 are specifically hinged to the sliding rail 22. In this way, after the seat body 1 tilts forward, the seat body 1 can be moved forward as a whole, thereby providing a larger avoidance space for the three rows of people at the rear.
[0059] Alternatively, see Figure 1-3 The car seat also includes a toggle structure 41 and a slide rail locking switch, the slide rail locking switch is used to lock or unlock the sliding rail 22 and the fixed rail 21, the first connecting rod 31, the second connecting rod 32 and one of the intermediate connecting rods 33 are setting connecting rods, and the setting connecting rod is provided with the toggle structure 41. When the seat body 1 tilts forward, the setting connecting rod drives the toggle structure 41 to press the slide rail locking switch to unlock the sliding rail 22 and the fixed rail 21.
[0060] In this embodiment, as mentioned above, when the angle of the backrest frame 11 is adjusted by the recliner 14 when the seat body 1 is in a sitting state, since the angle between the second connecting rod 32 and the middle connecting rod 33 is not affected by the recliner 14, the toggle structure 41 is preferably arranged at the second connecting rod 32 and the middle connecting rod 33, for example, at the second connecting rod 32 on the rearmost side, that is, the connecting rod is set to the second connecting rod 32. When the seat body 1 is in a sitting state, the slide rail locking switch locks the sliding rail 22 and the fixed rail 21, and the sliding rail 22 cannot move longitudinally; and when the seat body 1 tilts forward, the toggle structure 41 on the second connecting rod 32 will move and press the slide rail locking switch to unlock the sliding rail 22 and the fixed rail 21. At this time, the seat body 1 can be pushed forward after tilting forward to avoid more space. Among them, Figure 10 Figure a in the figure refers to the structural schematic diagram of the seat body 1 when it is in a posture state. Figure 10 Figure b in the figure refers to the structural schematic diagram of the seat body 1 after it is tilted forward. Figure 10 Figure c in the figure refers to the structural schematic diagram of the seat body 1 after it is tilted forward and moved forward.
[0061] See also Figure 4-6 and Figure 8-9 The slide rail locking switch is a mechanical locking switch, which includes a locking column 51 and a lifting spring (not shown in the figure). The slide rail 22 is provided with a locking hole 221. One end of the lifting spring is connected to the fixed rail 21, and the other end of the lifting spring is connected to the locking column 51. The lifting spring is used to drive the locking column 51 to insert into the locking hole 221 so that the slide rail 22 is locked with the fixed rail 21. When the seat body 1 tilts forward, the setting link drives the toggle structure 41 to press the locking column 51 and move it out of the locking hole 221.
[0062] In this embodiment, the slide rail locking switch is a mechanical locking switch, not an electric control switch. When the seat body 1 is in a sitting position, the lock column 51 of the slide rail locking switch is lifted up by the lifting spring, and then the lock column 51 penetrates into the lock hole 221 of the slide rail 22. At this time, the slide rail locking switch locks the slide rail 22 and the fixed rail 21, and the slide rail 22 cannot move longitudinally; and when the seat body 1 tilts forward, the toggle structure 41 on the second connecting rod 32 will move and press the lock column 51, so that the lock column 51 retracts and moves out of the lock hole 221. At this time, the slide rail locking switch unlocks the slide rail 22 and the fixed rail 21, and the tilted seat body 1 can be pushed forward.
[0063] See also Figure 4-6 and Figure 8-9Optionally, as in the prior art, the car seat may further include a slide rail unlocking lever 6, the position between the two ends of the slide rail unlocking lever 6 is hinged to the slide rail 22, and the rear end of the slide rail unlocking lever 6 is provided with a pressure plate 61, and the pressure plate 61 is located above the lock column 51. In this way, in the prior art, when the seat body 1 is in a sitting state, the person on the seat body 1 can lift up the front end of the slide rail unlocking lever 6, and then the slide rail unlocking lever 6 will be like a lever, with its rear end tilted downward, and then its rear end drives the pressure plate 61 to move downward and press the lock column 51 below, so that the slide rail locking switch unlocks the slide rail 22 and the fixed rail 21. That is, the person on the seat body 1 can unlock the slide rail 22 and the fixed rail 21 by operating the slide rail unlocking lever 6.
[0064] In addition, in this embodiment, see Figure 12-13 , taking the second link 32 as the setting link as an example, a notch 611 is provided on one side of the pressing plate 61 close to the four-bar linkage, wherein when the seat body 1 tilts forward, that is, when the second link 32 rotates in the positive direction of the X-axis, the second link 32 drives the toggle structure 41 to move from the notch 611 to the top of the pressing plate 61 and presses the pressing plate 61, so as to drive the lock column 51 to move out of the lock hole 221 through the pressing plate 61. At this time, the slide rail locking switch unlocks the sliding rail 22 and the fixed rail 21. The toggle structure 41 may include a cylindrical toggle member, the axial direction of the cylindrical toggle member is parallel to the transverse direction of the car seat, so that when the second link 32 rotates forward, the cylindrical toggle member can smoothly move from the notch 611 of the pressing plate 61 to the pressing plate 61 (the cylindrical toggle member moves around the hinge point at the bottom of the second link 32), and press the pressing plate 61.
[0065] In this embodiment, based on the use of the existing pressing plate 61 at the rear end of the slide rail unlocking rod 6, see Figure 12-13 It only needs to provide a notch 611 on the pressure plate 61 and a toggle structure 41 on the setting link, so that when the seat body 1 moves forward, the toggle structure 41 on the setting link can move the lock column 51 out of the lock hole by pressing the pressure plate 61 to unlock the sliding rail 22 and the fixed rail 21. The structure is simple and the cost is low.
[0066] See also Figure 1-3 Optionally, the car seat further comprises an unlocking harness 8, a ground lock device 71, a ground lock matching device and a booster spring 73, wherein the ground lock device 71 is arranged on the seat body 1, the unlocking harness 8 is connected to the ground lock device 71, the ground lock matching device and the booster spring 73 are respectively arranged on the mounting bracket 2, and the booster spring 73 is located behind the four-bar linkage;
[0067] When the unlocking wire harness 8 unlocks the first locking structure of the ground lock device 71 from the first locking and mating structure 721 of the ground lock mating device, the boosting spring 73 is used to drive the seat body 1 to tilt forward until the second locking structure of the ground lock device 71 mates and locks with the second locking and mating structure 722 of the ground lock mating device.
[0068] Here, when the seat body 1 is in a sitting posture, similar to the prior art, the first locking structure of the ground lock device 71 on the seat body 1 can be locked with the first locking and mating structure (which can be a locking bolt) on the mounting bracket 2; when it is necessary to tilt the seat body 1 forward, the first locking structure of the ground lock device 71 on the seat body 1 can be separated and unlocked by pulling the unlocking wire harness 8 on the seat body 1 from the first locking and mating structure 721 on the mounting bracket 2.
[0069] In this embodiment, when the first locking structure of the ground lock device 71 is separated and unlocked from the first locking and mating structure 721 on the mounting bracket 2, the elastic force of the boosting spring 73 will be released, which is used to drive the seat body 1 to tilt forward until the second locking structure of the ground lock device 71 mates and locks with the second locking and mating structure 722 of the ground lock mating device.
[0070] In some prior arts, the boosting spring 73 is generally a coil spring and is arranged at the frontmost first connecting rod 31. Affected by the dimensional space here, the elastic force of the coil spring is generally relatively low. Then, when the first locking structure of the ground lock device 71 is separated and unlocked from the first locking and mating structure 721 on the mounting bracket 2, although the coil spring can provide a certain amount of force for the tilting movement of the seat body 1 to a certain extent, but because the existing coil spring acts on the seat body 1 and the lever arm for tilting the seat body 1 forward is relatively short, that is, the existing boosting spring acts on the front part of the seat pan frame 12 of the seat body 1 near the first connecting rod 31, so the lever arm for the existing boosting spring to tilt the seat body 1 forward is relatively short, and a relatively large operating force still needs to be provided by the personnel to lift the rear end part of the seat body 1 to achieve tilting forward. If the elastic force of the coil spring is made very large, a relatively large size of the coil spring is required. Not only will it be difficult to achieve a relatively large size of the coil spring due to the limitation of the surrounding space, even if the elastic force of the coil spring can be made very large to make the seat body 1 easy to tilt forward, however, when pressing the backrest to make the seat body 1 return to the sitting posture state, the reaction force received by the operator will also be very large, making the restoration operation inconvenient.
[0071] In this embodiment, the assisting spring 73 can be a torsion spring or the like that does not occupy much space, and it is arranged behind the four-link mechanism, specifically at the sliding rail 22 position behind the second link 32. In this way, the moment arm of the assisting spring 73 acting on the seat body 1 to make the seat body 1 lean forward is relatively long. Compared with the existing assisting spring acting on the front part of the seat pan frame 12, the assisting spring 73 in this embodiment can act on the seat back fixing frame 13 of the seat body 1, and thus has a longer moment arm. Then, when the seat body 1 needs to lean forward, the operator only needs a relatively small operating force to achieve the forward leaning of the seat body 1; even relying only on the assisting spring 73 with a relatively small spring force, the forward leaning of the seat body 1 can be achieved. Correspondingly, since the assisting spring 73 has a longer moment arm, the elastic force of the assisting spring 73 can be designed to be smaller. In this way, when pressing the backrest to restore the seat body 1 to the sitting posture state, the reaction force received by the operator is also relatively small, making the restoration operation more convenient.
[0072] Another embodiment of the present invention further provides an automobile, including the automobile seat as described above.
[0073] Since the technical improvements and technical effects of the said automobile are the same as those of the said automobile seat, the said vehicle will not be described in detail herein.
[0074] The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features.
[0075] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Without departing from the spirit and scope of the present invention, those skilled in the art can make various changes and modifications, and these changes and modifications will all fall within the protection scope of the present invention.
Claims
1. A car seat, characterized in that: The invention comprises a seat body (1), a mounting bracket (2), and a connecting rod assembly, wherein the connecting rod assembly comprises a first connecting rod (31), a second connecting rod (32), and an intermediate connecting rod (33), wherein one end of the first connecting rod (31), the second connecting rod (32), and the intermediate connecting rod (33) are respectively hinged to the mounting bracket (2), and the other ends of the first connecting rod (31), the second connecting rod (32), and the intermediate connecting rod (33) are respectively hinged to the seat body (1), wherein the first connecting rod (31), the second connecting rod (32), the mounting bracket (2), and the seat body (1) form a four-bar linkage, and the intermediate connecting rod (33) is located between the first connecting rod (31) and the second connecting rod (32).
2. The vehicle seat according to claim 1, characterized in that: Two connecting rod assemblies are provided, and the two connecting rod assemblies are respectively located on two lateral sides of the seat body (1); the intermediate connecting rod (33) is located in the same plane as the first connecting rod (31) and the second connecting rod (32).
3. The vehicle seat according to claim 1, characterized in that: The line connecting the hinge point between the first connecting rod (31) and the seat body (1) and the hinge point between the second connecting rod (32) and the seat body (1) is a first connecting line, and the hinge point between the intermediate connecting rod (33) and the seat body (1) is located on the side of the first connecting line facing the mounting bracket (2); and / or, a line connecting a hinge point between the first connecting rod (31) and the mounting bracket (2) and a line connecting a hinge point between the second connecting rod (32) and the mounting bracket (2) is a second connecting line, and a hinge point between the intermediate connecting rod (33) and the mounting bracket (2) is located on a side of the second connecting line that faces the seat body (1); And / or, among the first connecting rod (31), the second connecting rod (32) and the intermediate connecting rod (33), the intermediate connecting rod (33) has the shortest length and the first connecting rod (31) has the longest length.
4. The vehicle seat according to claim 1, characterized in that: The mounting bracket (2) is a slide rail structure, which includes a fixed rail (21) and a sliding rail (22). The sliding rail (22) is slidably connected to the fixed rail (21), and one end of the first connecting rod (31), the second connecting rod (32) and the intermediate connecting rod (33) are respectively hinged to the sliding rail (22).
5. The vehicle seat according to claim 4, characterized in that: It also includes a toggle structure (41) and a slide rail locking switch, wherein the slide rail locking switch is used to lock or unlock the slide rail (22) and the fixed rail (21), and one of the first connecting rod (31), the second connecting rod (32) and the intermediate connecting rod (33) is a setting connecting rod, and the setting connecting rod is provided with the toggle structure (41). When the seat body (1) tilts forward, the setting connecting rod drives the toggle structure (41) to press the slide rail locking switch to unlock the slide rail (22) and the fixed rail (21).
6. The vehicle seat according to claim 5, characterized in that: The slide rail locking switch is a mechanical locking switch, comprising a locking column (51) and a lifting spring, the slide rail (22) being provided with a locking hole (221), one end of the lifting spring being connected to the fixed rail (21), and the other end of the lifting spring being connected to the locking column (51), the lifting spring being used to drive the locking column (51) to be inserted into the locking hole (221) so that the slide rail (22) and the fixed rail (21) are locked, and when the seat body (1) tilts forward, the setting connecting rod drives the toggle structure (41) to press the locking column (51) to move out of the locking hole (221).
7. The vehicle seat according to claim 6, characterized in that: It also includes a slide rail unlocking rod (6), the position between the two ends of the slide rail unlocking rod (6) is hinged to the slide rail (22), and a pressure plate (61) is provided at the rear end of the slide rail unlocking rod (6), and the pressure plate (61) is located above the lock column (51), and a notch (611) is provided on the side of the pressure plate (61) close to the four-bar mechanism, wherein when the seat body (1) tilts forward, the setting link drives the toggle structure (41) to move from the notch (611) to the top of the pressure plate (61) and presses down the pressure plate (61), so as to drive the lock column (51) to move out of the lock hole (221) through the pressure plate (61).
8. The vehicle seat according to claim 1, characterized in that: The seat body (1) comprises a backrest frame (11), a seat basin frame (12), a seat fixing frame (13), an angle adjuster (14) and a seat linkage rod (15); one end of the backrest frame (11) is connected to one end of the seat fixing frame (13) through the angle adjuster (14); the second link rod (32) and the intermediate link rod (33) are respectively hinged to different positions of the other end of the seat fixing frame (13); the front end of the seat basin frame (12) is fixed to one end of the seat linkage rod (15); the other end of the seat linkage rod (15) is hinged to the backrest frame (11); and the hinge point of the seat linkage rod (15) and the backrest frame (11) is located above the angle adjuster (14); the first link rod (31) is hinged to the front end of the seat basin frame (12) or the end of the seat linkage rod (15) away from the backrest frame (11).
9. The seat according to claim 1, characterized in that: It also includes an unlocking harness (8), a floor lock device (71), a floor lock matching device and a booster spring (73), wherein the floor lock device (71) is arranged on the seat body (1), the unlocking harness (8) is connected to the floor lock device (71), the floor lock matching device and the booster spring (73) are respectively arranged on the mounting bracket (2), and the booster spring (73) is located behind the four-bar linkage; When the unlocking harness (8) pulls the first locking structure of the ground lock device (71) and unlocks the first locking matching structure (721) of the ground lock matching device, the booster spring (73) is used to drive the seat body (1) to tilt forward until the second locking structure of the ground lock device (71) and the second locking matching structure (722) of the ground lock matching device are matched and locked.
10. An automobile, characterized in that: The invention comprises a car seat as claimed in any one of claims 1 to 9.