WO2023061021A1

WO2023061021A1 - Automobile seat adjustment mechanism and automobile seat

Info

Publication number: WO2023061021A1
Application number: PCT/CN2022/111952
Authority: WO
Inventors: 费超; 钮钟丽; 倪梦强
Original assignee: 延锋国际汽车技术有限公司
Priority date: 2021-10-13
Filing date: 2022-08-12
Publication date: 2023-04-20
Also published as: CN113715699A; CN113715699B

Abstract

An automobile seat adjustment mechanism and an automobile seat. The automobile seat adjustment mechanism comprises a seat cushion frame (100), the seat cushion frame (100) comprises a pair of seat cushion frame side plates (110), and front end sections of the pair of seat cushion frame side plates (110) are hingedly arranged on a supporting component by means of a pair of first connecting rods (150) and a pair of second connecting rods (160). The automobile seat adjustment mechanism further comprises a first connecting member (300), a second connecting member (400) and an electric screw mechanism (500). Each first connecting rod (150) is hinged on the supporting component by using a first end thereof and is hinged with a corresponding second connecting rod (160) by using a second end thereof. A first end of each second connecting rod (160) is hinged to a front end section of a corresponding seat cushion frame side plate (110), and two ends of the second connecting member (400) are fixedly connected to second ends of the pair of second connecting rods (160), respectively. At an initial position of the seat cushion frame (100), viewed in the longitudinal direction, the first connecting rods (150) extend backward from first ends to second ends thereof, and the hinge point of the second end of the first connecting rod (150) and the second connecting rod (160) is behind the first connecting member (300). Further provided is an automobile seat comprising the automobile seat adjustment mechanism.

Description

Car seat adjustment mechanism and car seat

technical field

The invention relates to the technical field of vehicles, in particular to a car seat adjustment mechanism and a car seat including the car seat adjustment mechanism, especially a zero-gravity car seat.

Background technique

With the popularity and progress of cars, users have higher and higher requirements for the comfort of riding in cars, and correspondingly, car seats with higher and higher requirements for comfort have been produced. When riding in a car, for a more comfortable ride, the user hopes that the car seat can adjust the inclination as far as possible backwards in some cases, so that the user can lie on the car seat and rest. At this time, the user's posture can be called A zero-gravity attitude, and such a car seat may be called a zero-gravity car seat. At present, some known technical solutions of zero-gravity car seats are more complicated, cost higher, and have insufficient structural stability.

Chinese invention patent application CN110588455A discloses a seat and its inclination adjustment mechanism, wherein the seat includes a connected seat body and a backrest, the seat body includes a frame, the front end of the frame is provided with a seat pan, and the rear end of the frame is hingedly arranged . The inclination adjustment device includes a front support assembly and a drive assembly, the front end of the front support assembly is hinged to the front end of the frame, and the rear end of the front support assembly forms a fixed hinge point. The driving part includes a driving part and a connecting part, the driving part is hinged with the front bracket assembly, the driving part is provided with a driving rod, the driving rod is threadedly connected with the connecting part, and the connecting part is also hingedly arranged on its end away from the driving rod; The driving rod can be driven to rotate to change the length of the driving rod screwed into the connecting part, so that the front bracket assembly can rotate relative to the fixed hinge point, and thus force the frame to rotate around the hinge point at its rear end, so as to realize the inclination angle of the seat body And the adjustment of the backrest inclination. In this prior art, the two drive rods protrude outwards, encroaching on space for other mechanisms in the area of the front end of the seat, resulting in a poor fit of the reclining mechanism. In addition, one end of the screw drive mechanism is fixed to the slide rail, and the structural layout of the screw drive mechanism is limited by the structure of the slide rail, which increases the restrictions on the layout of the screw drive mechanism, making the screw drive mechanism practically applicable poor. In addition, the driving end of the screw drive mechanism is located on one side (left or right) of the cushion, and the linkage mechanism on the other side (right or left) of the cushion is free so that the cushion exists in its front end area. The problem of inconsistent rigidity on the left and right sides.

Referring to Fig. 14 and Fig. 15, in the seat disclosed in CN110588455A, the rear end of the cushion frame side plate 11 is hinged with the upper end of the connecting rod 12, and the lower end of the connecting rod 12 is connected with the rear end of the upper slide rail of the slide rail assembly 15 Hinged, the front end of cushion frame side plate 11 is hinged with the upper end of connecting rod 13, the lower end of connecting rod 13 is hinged with the upper end of connecting rod 14, and the lower end of connecting rod 14 is hinged with the front end of the upper slide rail of slide rail assembly 15. The nut 41 in the electric screw mechanism is hinged with one end of the connecting rod 16, and the other end of the connecting rod 16 is fixedly connected with the connecting rod 14. Motor 17 in the electric screw mechanism is hinged on the upper slide rail of slide rail assembly 15, and the screw mandrel 18 in the electric screw mechanism engages with nut 41. As can be seen from Fig. 14, the hinge point 19 of the connecting rod 13 and the connecting rod 14 protrudes from the front end of the cushion skeleton, which interferes with the arrangement of the leg rest mechanism (especially the leg rest mechanism with the reinforced structure of the synchronous rod). Therefore, it is impossible to install a leg rest mechanism in the seat as shown in FIG. 14 , and this seat cannot meet the needs of the current zero-gravity seat under the condition that a leg rest mechanism needs to be installed.

In addition, referring to Fig. 15, if the hinge point 19 of the connecting rod 13 and the connecting rod 14 protrudes toward the inner side of the cushion frame to install the leg rest mechanism, then the motor 17 cannot be connected to the front end of the seat cushion frame when the leg rest mechanism is installed. The hinge point 20 between the upper slide rails of the slide rail assembly 15 is in front, and the hinge point 20 can only protrude to the inside of the cushion frame following the hinge point 19 and move backward, so that the motor 17 and the slide rail assembly 15 will Other parts such as horizontal motor bracket, manual unlocking synchronization lever interference.

In addition, in the seat disclosed in CN110588455A, when the height is adjusted, the stress form of the front end of the four-bar linkage mechanism is unfavorable, wherein there is no locking measure between the connecting rod 13 and the connecting rod 14 . Therefore, when the front end of the cushion skeleton is subjected to downward force, the whole four-bar linkage is easily unstable.

Contents of the invention

The object of the present invention is to provide a car seat adjustment mechanism and a car seat comprising the car seat adjustment mechanism, wherein at least one defect existing in the prior art can be overcome by the car seat adjustment mechanism.

One of the technical problems to be solved by the present invention is that in the existing car seat, the two connecting rods protrude outward and occupy the space at the front end of the seat for other structures, and the adaptability of the car seat adjustment mechanism is poor. The problem of providing a vehicle seat adjustment mechanism for a vehicle seat, in particular for a zero-gravity vehicle seat, whereby space in the region of the front end of the seat can be freed up for other structures.

The second technical problem to be solved by the present invention is that, in view of the fact that the structure arrangement of the electric screw mechanism is limited by the structure of the slide rail due to the screw motor being installed on the slide rail in the existing car seat, an electric wire is added. Due to the limitation of the layout of the rod mechanism and the poor practical applicability of the electric screw mechanism, a car seat adjustment mechanism for a car seat, especially for a zero-gravity car seat is provided, wherein the electric wire The arrangement of the rod mechanism can be independent of the surrounding environment, and the practical applicability is good.

In an advantageous embodiment, the third technical problem to be solved by the present invention is to provide a vehicle seat, especially a It is a car seat adjustment mechanism for zero-gravity car seats, which can ensure that the left and right sides of the seat cushion have roughly the same rigidity. In an advantageous embodiment, when the car seat is adjusted to the zero-gravity mode by the car seat adjustment mechanism, it can be realized that the connecting rod of the car seat is self-locking, and the stability and clearance of the car seat are good.

In order to achieve the above object, the present invention provides a car seat adjustment mechanism, which includes a cushion frame, the seat cushion frame includes a pair of seat cushion frame side plates, the rear end sections of the pair of seat cushion frame side plates are hinged The front end sections of the pair of seat cushion skeleton side panels are hinged to the support member through a pair of first connecting rods and a pair of second connecting rods. The car seat adjustment mechanism also includes a first connecting member, a second connecting member and an electric screw mechanism, both ends of the first connecting member are fixedly connected to the front ends of the pair of seat cushion frame side plates; Each first connecting rod is hinged on the support member with its first end, and is hinged with the corresponding second connecting rod at its second end, and the first end of each second connecting rod is connected with the corresponding cushion frame side The front section of the plate is hinged, and the two ends of the second connecting member are respectively fixedly connected with the second ends of a pair of second connecting rods; at the initial position of the cushion frame, viewed in the longitudinal direction, the first connecting rod The rod extends backward from its first end to its second end, and the hinge point between the second end of the first connecting rod and the second connecting rod is behind the first connecting member; the electric screw mechanism It includes a screw motor and a nut assembly, the nut assembly can move along the screw rod of the screw motor, the screw motor is installed on the first connecting member, the nut assembly is connected to the second Connecting components are connected.

In a preferred embodiment of the present invention, in the initial position of the cushion frame, viewed in the longitudinal direction,

- the hinge point of the first connecting rod and the supporting member is in front of the first connecting member; and/or

- said second connecting member is rearward of the hinge point of said second end of said first link with said second link; and/or

- the hinge point between the second link and the corresponding side panel of the cushion frame is located at the hinge point between the second end of the first link and the second link and between the first link and the support member between the hinge points.

In a preferred embodiment of the present invention, viewed in the transverse direction, the screw motor is installed approximately in the middle of the first connecting member, and the nut assembly is installed approximately in the middle of the second connecting member In the middle position, the distance between the electric screw mechanism and the pair of seat cushion skeleton side plates is approximately equal.

In a preferred embodiment of the present invention, the screw motor is installed on the approximate middle of the first connecting member through a motor bracket, and the nut assembly is installed on the second connecting member through a nut assembly bracket. approximately in the middle of the component.

In a preferred embodiment of the present invention, the rear end sections of the pair of cushion frame side panels are hingedly arranged on the support member through a rear connecting rod, wherein each of the cushion frame side panels The rear end section is hinged to a corresponding rear link which is hinged on said support member.

In a preferred embodiment of the present invention, a cushion height-adjusting motor is installed on at least one side plate of the cushion frame, and a cushion height-adjusting gear is fixed on the output shaft of the cushion height-adjusting motor. A sector gear is fixed on the rod, and the seat cushion height-adjusting gear and the sector gear mesh with each other.

In a preferred embodiment of the present invention, the supporting component is a body floor or a slide rail assembly installed on the body floor.

In a preferred embodiment of the present invention, each cushion frame side panel is hinged at its rear end to a corresponding rear link.

In a preferred embodiment of the present invention, the support member is a pair of slide rail assemblies installed on the vehicle body floor, each slide rail assembly includes an upper slide rail, and each seat cushion frame side panel is at its rear end The upper part is hinged to the corresponding rear link, each rear link is hinged to the rear end of the corresponding upper slide rail, and each first link is hinged to the front end of the corresponding upper slide rail.

In a preferred embodiment of the present invention, the pair of first connecting rods are respectively bent downwards, wherein, at the zero-gravity position of the cushion frame, the second connecting member blocks against the pair of first connecting rods. on the bent portion of the connecting rod.

In a preferred embodiment of the present invention, the car seat adjustment mechanism is configured for a zero-gravity car seat.

In a preferred embodiment of the present invention, the first connecting member is a square pipe, and the second connecting member is a round pipe.

A further aspect of the invention relates to a vehicle seat, in particular a zero-gravity vehicle seat, which comprises the vehicle seat adjustment mechanism according to the invention.

In a preferred embodiment of the present invention, the car seat includes a backrest and a seat cushion, and the seat cushion includes a cushion frame.

Compared with the prior art, some embodiments of the present invention may have some or all of the following characteristics:

1. The inclination angle adjustment of the seat cushion is realized through the electric screw mechanism, and the height adjustment of the seat cushion is realized through the seat height adjustment motor, the seat height adjustment gear and the fan-shaped tooth plate. The electric screw mechanism and the seat height adjustment mechanism composed of the seat height adjustment motor, the seat height adjustment gear and the fan-shaped tooth plate can coordinately adjust the car seat, so that the car seat can not only reach the "zero gravity position", but also meet the requirements of different heights. Provides enhanced comfort to meet the various needs of the occupants regarding the height of the cushion.

2. In the case of overlooking the car seat, the electric screw mechanism is directly placed in the frame of the seat cushion, which saves the use of the external space outside the seat cushion. Furthermore, since the first link and the second link protrude with their articulation points towards the rear side of the vehicle seat, this frees up space in the region of the front end of the vehicle seat for other structures.

3. The electric screw mechanism is connected to a pair of seat cushion side panels through the first connecting member and the second connecting member, which reduces the strength requirements of the electric screw mechanism.

4. The electric screw mechanism is completely arranged on the cushion frame, which reduces the dependence of the electric screw mechanism on the surrounding environment.

5. In the transverse direction of the car seat, the electric screw mechanism is arranged in the middle of the cushion frame, which can ensure that the side panels of the seat frame on both sides of the seat cushion have the same rigidity.

6. When the car seat is adjusted to the zero-gravity state, it can be realized that in the side view of the car seat, the first connecting member and the second connecting member can be on a vertical line, so that the first connecting member can be connected to the second connecting member The two connecting members form a self-locking structure, and the structural stability and clearance performance of the car seat, especially the seat cushion thereof, are better.

The technical features mentioned above, the technical features to be mentioned below and the technical features shown individually in the drawings can be combined with each other arbitrarily, as long as the combined technical features are not mutually contradictory. All possible combinations of features are technical contents explicitly recorded in this document. Any one of a plurality of sub-features included in the same sentence may be applied independently without necessarily being applied together with other sub-features.

Description of drawings

The invention will now be explained in more detail by means of exemplary embodiments with reference to the schematic drawings.

FIG. 1 is a schematic perspective view of a car seat adjustment mechanism for a zero-gravity car seat according to an embodiment of the present invention.

Fig. 2 is a side view of the adjusting mechanism of the vehicle seat according to the present invention.

Fig. 3 is an exploded schematic view of the car seat adjusting mechanism according to the present invention.

FIG. 4 is a partial perspective schematic diagram for describing the installation of the electric screw mechanism of the car seat adjusting mechanism according to the present invention.

Fig. 5 is an exploded schematic diagram of the first link and the second link in the car seat adjusting mechanism according to the present invention.

Fig. 6 is an assembly diagram of the first connecting rod, the second connecting rod, the second connecting member and the nut assembly bracket in the car seat adjusting mechanism according to the present invention.

Fig. 7 is an exploded schematic diagram of the seat cushion frame side plate, the first connecting rod, the second connecting rod, the second connecting member and the nut assembly bracket in the car seat adjusting mechanism of the present invention.

Fig. 8 is a schematic perspective view of the car seat adjusting mechanism in the initial position according to the present invention.

Fig. 9 is a schematic structural view of the car seat adjusting mechanism in the initial position according to the present invention.

Fig. 10 is a three-dimensional schematic view of the car seat adjusting mechanism in the zero-gravity position according to the present invention viewed from a perspective.

Fig. 11 is a schematic perspective view from another perspective of the car seat adjusting mechanism in the zero gravity position according to the present invention.

Fig. 12 is a schematic structural diagram of the car seat adjusting mechanism in the zero-gravity position according to the present invention.

Fig. 13 is a schematic diagram of the movement of the car seat adjusting mechanism according to the present invention.

Fig. 14 is a structural diagram of a car seat known from CN110588455A in its initial position.

Fig. 15 is a structural diagram of another car seat known from CN110588455A in a zero-gravity position.

Figure 16 is a schematic illustration of the vehicle seat according to the present invention being used by an occupant in a zero-gravity position.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Referring to Fig. 1 to Fig. 13, the car seat shown in these drawings can be constituted as a zero-gravity car seat, wherein, the seat cushion and the backrest of the car seat can be adjusted to appropriate angles respectively, so that the occupant can lie comfortably In a car seat, you are essentially in a zero-gravity posture. It goes without saying that the vehicle seat can also be designed as a non-zero-gravity vehicle seat, wherein the inclination of the seat backrest can be adjusted to the rear less than in the case of a zero-gravity vehicle seat, for example such that Allows occupants to work with laptops or tablets. The car seat can include a cushion and a backrest, the cushion can include a cushion skeleton, and the backrest can include an Ankang backrest skeleton. The backrest of the car seat is omitted in FIGS. 1 to 13 , and the upholstery portion of the seat cushion of the car seat is omitted so that the cushion skeleton can be shown in the drawings.

FIG. 1 additionally depicts a coordinate system with the coordinates x, y, z. Typically, when the car seat is installed in the car and is in the initial state, the coordinate x represents the longitudinal direction of the car seat, which corresponds to the longitudinal direction of the car; the coordinate y represents the transverse direction of the car seat, which corresponds to the Transversal direction; coordinate z indicates the vertical direction of the car seat, which corresponds to the vertical direction of the car.

The car seat may include a car seat adjustment mechanism. The seat cushion frame 100 can hook out the components of the car seat adjustment mechanism, and the seat cushion frame 100 includes a pair of seat cushion frame side plates 110 .

The rear end sections of the pair of cushion frame side panels 110 are hingedly arranged on a support member. In this specific embodiment, the supporting component is a pair of slide rail assemblies 200, and the pair of slide rail assemblies 200 are installed on the vehicle body floor. Of course, the support component can also be the vehicle body floor directly, and therefore the pair of slide rail assemblies 200 is omitted.

In the specific embodiment shown, the rear end sections of the pair of cushion frame side panels 110 are hingedly arranged on a pair of slide rail assemblies 200, wherein the rear end sections of each cushion frame side panel 110 The segments are hinged to corresponding rear links 120 , and each rear link 120 is hinged to an upper slide rail 210 of a corresponding slide rail assembly 200 .

In order to realize the height adjustment of the cushion, a cushion height adjustment motor 130 is installed on the cushion frame side plate 110 on the left side, a cushion height adjustment gear 131 is fixed on the output shaft of the cushion height adjustment motor 130, and a seat height adjustment gear 131 is fixed on the left side rear connecting rod 120 A sector gear 140 is fixed on the top, and the cushion height-adjusting gear 131 and the sector gear 140 are meshed with each other. When the cushion heightening motor 130 worked, the cushion heightening motor 130 drove the cushion heightening gear 131 to rotate, and the cushion heightening gear 131 meshed with the sector gear 140 to drive the rear end of the cushion to raise or lower. A pair of rear links 120 may be interconnected by a rear tube 170 and thus move synchronously when the seat is raised.

In an unshown embodiment, a pair of cushion height-adjusting motors 130 can be used, which are respectively installed on a cushion frame side plate 110 and can work synchronously.

When the car seat does not need the seat cushion height-adjusting function, a pair of seat cushion frame side panels 110 can be directly hingedly connected with supporting components, such as a pair of slide rail assemblies 200 .

In the specific embodiment shown, the front end sections of a pair of cushion frame side panels 110 are hinged to the upper slide rails of a pair of slide rail assemblies 200 through a pair of first connecting rods 150 and a pair of second connecting rods 160 210 on. The first end of each first connecting rod 150 is hinged on the front end of the upper slide rail 210 of the slide rail assembly 200 through the first hinge bolt 151, and the second end of each first connecting rod 150 is connected to the corresponding second connecting rod. The rods 160 are hinged through the second hinge bolts 152 , and the first end of each second connecting rod 160 is hinged with the front end section of the corresponding cushion frame side plate 110 through the third hinge bolts 161 .

The car seat adjustment mechanism also includes a first connecting member 300 , a second connecting member 400 and an electric screw mechanism 500 . The first connecting member 300 is a square tube, and of course it is not limited to a square tube. Both ends of the first connecting member 300 are fixed, for example welded, to the front ends of the pair of cushion frame side plates 110 . The second connecting member 400 is a round tube, and of course it is not limited to a round tube. Both ends of the second connecting member 400 are respectively fixed, eg welded, to the second ends of the pair of second connecting rods 160 .

In the particular embodiment shown, in the initial state of the vehicle seat as shown in FIGS. 1 and 2 , viewed in the longitudinal direction x, the second end of the first link 150 is connected to the The hinge point (the second hinge bolt 152) is at the rear of the first connecting member 300; the front of the second connecting member 400 at the second end of the first connecting rod 150 and the rear of the hinge point (second hinge bolt 152) of the second connecting rod 160; the second connecting rod 160 and the corresponding cushion frame side plate 110 The hinge point (the third hinge bolt 161) is located at the hinge point (the second hinge bolt 152) between the second end of the first connecting rod 150 and the second connecting rod 160 and the upper slide between the first connecting rod 150 and the slide rail assembly 200 between the hinge points (first hinge bolts 151 ) of the rails 210 and behind the first connection member 300 . When viewed from above, the hinge point (the second hinge bolt 152 ) between the second end of the first link 150 and the second link 160 is within the area of the seat cushion. The first link 150 extends from its first end to its second end in the direction of the rear side of the seat, which frees up space for other structures in the front end region of the vehicle seat.

When viewed from above, the electric screw mechanism 500 is directly inside the cushion frame 100, which saves the use of the external space outside the seat cushion frame.

The electric screw mechanism 500 includes a screw motor 510 and a nut assembly 530, the screw motor 510 is installed on the first connecting member 300 through a motor bracket 520, and includes a driving motor and a screw that can be driven to rotate by the driving motor , the nut assembly 530 is connected to the second connecting member 400 through a nut assembly bracket 540 . Since the electric screw mechanism 500 is connected to the pair of seat cushion side panels 110 through the first connecting member 300 and the second connecting member 400 , the strength requirements for the electric screw mechanism 500 are reduced.

It is especially advantageous that the screw motor 510 is installed on the approximate middle position of the first connecting member 300 (viewed in the transverse direction y) through a motor bracket 520, and the nut assembly 530 is installed on the second connecting member 300 through a nut assembly bracket 540. At the approximate middle position of the connecting member 400, the electric screw mechanism 500 is completely arranged on the cushion frame, and the electric screw mechanism is inside the cushion frame, which reduces the dependence of the electric screw mechanism on the surrounding environment, and at the same time It can ensure that the cushion frame side panels on the left and right sides of the cushion have the same rigidity. The motor bracket 520 is, for example, welded on the first connecting member 300 , and the screw motor 510 can rotate around a rotation axis provided by the motor bracket 520 extending in the transverse direction. The nut assembly bracket 540 is, for example, welded on the second connecting member 400 , and the nut assembly 530 can rotate around a rotation axis provided by the nut assembly bracket 540 extending in the transverse direction. The nut assembly 530 rotates around the rotation axis of the nut assembly bracket 540 , which is perpendicular to the screw rod, while moving along the screw rod of the screw motor 510 .

Referring to Fig. 8 and Fig. 9, when the car seat or the cushion skeleton 100 is in the initial position, the nut assembly 530 is located at the farthest end of the screw rod 550, at this moment, a pair of second connecting rods 160 and a pair of rear connecting rods 120 are in the reverse terminal position, the hinge point (second hinge bolt 152) of the first link 150 and the second link 160 and the second connecting member 400 are all in the innermost position, that is, the first link 150 and the second link 160 The two connecting rods 160 protrude into the cushion frame with their hinge points. In the initial position of the cushion frame 100, the cushion may have an inclination of approximately zero degrees. In the initial position of the cushion frame 100, and when the backrest of the car seat is also in the initial position (if the backrest of the car seat can additionally adjust the angle relative to the seat cushion in addition to being adjusted together with the seat cushion), the occupant You can fully focus on the driving process of the car or the traffic situation.

10 to 12, when the cushion frame 100 is adjusted from the initial position to the zero-gravity position, the screw motor 510 is energized, and the screw motor 510 drives the screw 550 to rotate, and the nut assembly 530 moves toward the screw along the screw 550. The motor 510 moves, and the nut assembly 530 drives the second connecting member 400 to rotate, so that the second connecting rod 160 rotates forward around the hinge point of the second connecting rod 160 and the seat cushion frame side plate 110, and the first connecting rod 150 rotates around the first The hinge point of the connecting rod 150 and the support component rotates forward, the second connecting member 400 approaches the first connecting member 300, and the front end of the cushion frame is lifted to realize the adjustment of the cushion angle. As shown in Figures 10 and 11, when the cushion skeleton 100 is in the zero-gravity position, the first connecting member 300 and the second connecting member 400 are on a vertical line to form a self-locking structure, so that the structural stability of the cushion skeleton Excellent performance with gaps. A seat pan 180 mounted on a pair of cushion frame side panels 110 is additionally depicted in FIG. 11 .

FIG. 16 depicts the use of the vehicle seat according to the invention by an occupant of the vehicle. In Fig. 16, a car seat is depicted in a greatly simplified manner. By the car seat adjustment mechanism explained with reference to Fig. 1 to Fig. 13 according to the present invention, the car seat has been adjusted to the zero-gravity position, wherein the cushion frame 100 of the seat cushion of the car seat is in the position shown in Fig. 10 and 11 In this state, the backrest of the car seat is adjusted together with the seat cushion so that the backrest is adjusted to an inclination angle α of approximately 60° relative to the upright position. It can be understood that the car seat can be adjusted to any intermediate position between the initial position and the zero-gravity position according to the actual needs of the occupant. Car seats may include leg rest mechanisms that provide comfortable support for the occupant's legs in the zero-gravity position of the car seat.

It should be noted that the terminology used herein is for the purpose of describing specific aspects only, and is not used to limit the disclosure. As used herein, the singular forms "a" and "the one" shall include plural forms unless the context clearly dictates otherwise. It will be understood that the terms "comprises" and "comprises" and other similar terms, when used in the application documents, specify the existence of stated operations, elements and/or parts, but do not exclude one or more other operations, elements , the presence or addition of components and/or combinations thereof. As used herein, the term "and/or" includes all arbitrary combinations of one or more of the associated listed items. Like reference numerals denote like elements throughout the description of the drawings.

Thicknesses of elements in the drawings may be exaggerated for clarity. It will also be understood that if an element is referred to as being on, coupled to, or connected to another element, that element may be directly formed on, coupled to, or connected to the other element. Connected thereto, or there may be one or more intervening elements between them. In contrast, if the expressions "directly on," "directly coupled to," and "directly connected to" are used herein, there are no intervening elements present. Other words used to describe the relationship between elements should be interpreted similarly, such as "between" and "directly between", "attached" and "directly attached", "adjacent" and " directly adjacent" and so on.

Terms such as "top", "bottom", "above", "beneath", "above", "underneath", etc. are used herein to describe one element, layer or region relative to another as shown in the figures. Relationships between elements, layers, or regions. It will be understood that these terms are intended to encompass other orientations of the device in addition to the orientation depicted in the figures.

It will be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. Thus, a first element could be termed a second element without departing from the teachings of the inventive concept.

It is also conceivable that all exemplary embodiments disclosed here can be combined with one another in any desired way. Finally, it should be pointed out that the above embodiments are only used for understanding the present invention, and do not limit the protection scope of the present invention. For those skilled in the art, modifications can be made on the basis of the above-mentioned embodiments, and these modifications do not depart from the protection scope of the present invention.

Claims

An automobile seat adjustment mechanism, comprising a cushion frame (100), the cushion frame comprising a pair of cushion frame side plates (110), the rear end sections of the pair of seat cushion frame side plates being hingedly arranged on On a support component, the front end sections of the pair of cushion frame side panels are hingedly arranged on the support component through a pair of first connecting rods (150) and a pair of second connecting rods (160), which characterized in that,

The car seat adjustment mechanism also includes a first connecting member (300), a second connecting member (400) and an electric screw mechanism (500), the two ends of the first connecting member are connected to the pair of The front end of the cushion skeleton side plate is fixedly connected; each first connecting rod is hinged on the support member with its first end, and is hinged with the corresponding second connecting rod with its second end, and each second connecting rod The first end is hinged to the front section of the corresponding cushion frame side plate, and the two ends of the second connecting member are respectively fixedly connected to the second ends of a pair of second connecting rods; at the initial position of the cushion frame, in the longitudinal direction Viewed from the direction, the first connecting rod extends backward from its first end to its second end, and the hinge point between the second end of the first connecting rod and the second connecting rod is at the first connecting member rear of

The electric screw mechanism includes a screw motor (510) and a nut assembly (530), the nut assembly can move along the screw (550) of the screw motor, and the screw motor is installed on the second On a connecting member, the nut assembly is connected to the second connecting member.
The car seat adjustment mechanism according to claim 1, characterized in that, at the initial position of the cushion frame, viewed in the longitudinal direction,

- the hinge point of the first connecting rod and the supporting member is in front of the first connecting member; and/or

- said second connecting member is rearward of the hinge point of said second end of said first link with said second link; and/or

- the hinge point between the second link and the corresponding side panel of the cushion frame is located at the hinge point between the second end of the first link and the second link and between the first link and the support member between the hinge points of the ; and/or

- The hinge point between the second connecting rod and the corresponding side panel of the cushion frame is located behind the first connecting member.
The car seat adjustment mechanism according to claim 1 or 2, characterized in that, viewed in the transverse direction, the screw motor is mounted on the approximate middle of the first connecting member, and the nut assembly is mounted on At the approximate middle position of the second connecting member, the distance between the electric screw mechanism and the pair of seat cushion skeleton side plates is approximately equal.
The car seat adjustment mechanism according to claim 3, characterized in that, the screw motor is installed on the approximate middle position of the first connecting member through a motor bracket (520), and the nut assembly is installed through a nut The assembly bracket (540) is installed approximately in the middle of the second connecting member.
The car seat adjustment mechanism according to any one of claims 1 to 4, characterized in that, the rear end sections of the pair of seat cushion frame side panels are respectively arranged in a hinged manner through a rear connecting rod (120) On the support component, wherein, the rear end section of each cushion frame side plate is hinged to the corresponding rear link, and the corresponding rear link is hinged to the support component.
The car seat adjustment mechanism according to claim 5, characterized in that, a seat cushion height-adjusting motor (130) is installed on at least one seat cushion frame side plate, and a seat cushion height-adjusting motor (130) is fixed on the output shaft of the seat cushion height-adjusting motor. As for the high gear (131), a sector gear (140) is fixed on the at least one rear connecting rod, and the cushion height-adjusting gear and the sector gear mesh with each other.
The car seat adjustment mechanism according to any one of claims 1 to 6, characterized in that, the supporting component is a body floor or a pair of slide rail assemblies (200) installed on the body floor.
The car seat adjustment mechanism of claim 5, wherein each side panel of the cushion frame is hinged at its rear end to the corresponding rear link.
The car seat adjustment mechanism according to claim 5, characterized in that, the support member is a pair of slide rail assemblies installed on the vehicle body floor, and each slide rail assembly includes an upper slide rail (210), Each cushion frame side plate is hinged with the corresponding rear link on its rear end, each rear link is hinged with the rear end of the corresponding upper slide rail, and each first link is hinged with the front end of the corresponding upper slide rail .
The car seat adjustment mechanism according to any one of claims 1 to 9, wherein the first connecting member is a square tube, and the second connecting member is a round tube.
The car seat adjustment mechanism according to any one of claims 1 to 10, characterized in that the car seat adjustment mechanism is configured for a zero-gravity car seat.
The car seat adjustment mechanism according to claim 11, wherein the pair of first connecting rods are respectively bent downwards, wherein, at the zero-gravity position of the seat cushion frame, the second connecting member abuts against on the bent portion of the pair of first connecting rods.
A car seat, especially a zero-gravity car seat, is characterized in that the car seat comprises the car seat adjustment mechanism according to any one of claims 1-12.
The car seat of claim 13, wherein the car seat includes a backrest and a seat cushion, and the seat cushion includes a seat cushion frame.