CN216331617U

CN216331617U - Automobile seat framework

Info

Publication number: CN216331617U
Application number: CN202122982907.0U
Authority: CN
Inventors: 李坤霖; 黎清茂; 易启洪
Original assignee: Chongqing Adient Automotive Components Co Ltd
Current assignee: Chongqing Adient Automotive Components Co Ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-04-19
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses an automobile seat framework, which comprises a seat frame, a seat basin and a slide rail, wherein the slide rail comprises a lower rail and an upper rail, the seat frame is enclosed by a front transverse pipe, a rear transverse pipe and seat frame side plates positioned at two sides, the seat frame is movably supported above the slide rail through a connecting rod mechanism, the connecting rod mechanism comprises two front connecting rods, two rear connecting rods and two middle connecting rods, wherein two ends of the front connecting rods are respectively hinged to the seat frame side plates and the front ends of the upper rails at the same side, the upper ends of the rear connecting rods are hinged to the end parts of the rear transverse pipes, the lower ends of the rear connecting rods are hinged to the rear ends of the upper rails at the same side, the middle connecting rods are positioned between the front connecting rods and the rear connecting rods, the upper ends of the front connecting rods are hinged to the seat frame side plates at the same side and are connected with the middle connecting rods at the other side through synchronous rods, the lower end of one middle connecting rod is connected with a high-pitch motor, the high pitch motor is positioned below the front end close to the seat frame, the utility model can realize lower Block value, and ensure that the space layout of the whole automobile is more flexible, the foot placing space of the passengers in the back row can be enlarged, and the foot placing device has the advantages of compact structure, good reliability and the like.

Description

Automobile seat framework

Technical Field

The utility model relates to the technical field of automobile seats, in particular to an automobile seat framework.

Background

The H Point (Hip Point) is usually the design reference Point of the car seat, and the vertical distance (Block value) from the H Point to the lower bottom surface of the slide rail is an important index for representing the seat space. In order to meet the design requirements of some vehicle types, particularly pure electric vehicles, more structures or functional modules are configured below the seat, and therefore the seat is expected to have a lower Block value in the vehicle types, and the Block value is difficult to reduce to an ideal height range by the traditional seat under the influence of a skeleton structure.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides an automobile seat framework, which can realize a lower Block value.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

a car seat framework comprises a seat frame and a seat basin fixed on the seat frame, wherein two groups of slide rails are arranged below the seat frame side by side and comprise a lower rail and an upper rail arranged on the lower rail in a sliding manner, the seat frame is enclosed by a front transverse pipe, a rear transverse pipe and seat frame side plates positioned on two sides and is movably supported above the two groups of slide rails through a connecting rod mechanism, the connecting rod mechanism comprises two front connecting rods, two rear connecting rods and two middle connecting rods, the two ends of the front connecting rods are symmetrically arranged on two sides of the seat frame, the two ends of the front connecting rods are respectively hinged to the front ends of the seat frame side plates and the upper rail on the same side, the upper ends of the rear connecting rods are hinged to the end parts of the rear transverse pipes, the lower ends of the rear connecting rods are hinged to the rear ends of the upper rails on the same side, the middle connecting rods are positioned between the front connecting rods and the rear connecting rods, the upper ends of the middle connecting rods are hinged to the seat frame side plates on the same side and are connected with the middle connecting rods on the other side through synchronizing rods, and the lower end of one middle connecting rod is connected with a high-adjusting motor, the height adjusting motor is located below the front end of the seat frame, and the middle connecting rod can push the seat frame under the driving of the height adjusting motor and drive the front connecting rod and the rear connecting rod to rotate, so that the seat frame is lifted.

Adopt above-mentioned structure, rely on link mechanism's special design to place the high-speed motor in the position that is close to the front end, like this, when adjusting the seat to the lowest position, can reduce the difference in height between seat frame and the slide rail bottom as far as possible, thereby when satisfying the seat height and adjusting the stroke, effectively reduce seat Block value, make whole car can be more nimble at the spatial layout of seat mounted position.

Preferably, the height of the hinge point at the upper end of the middle connecting rod is lower than that of the hinge point at the upper ends of the front connecting rod and the rear connecting rod, and the design helps to further reduce the seat Block value.

Preferably, the middle connecting rod is provided with a bent part in the middle, and the synchronous rod is fixed to a position close to the bent part so as to connect the middle connecting rods on two sides into a whole. The structure enables the middle connecting rod to realize adjustment of a larger stroke by using a limited space, saves more labor, is beneficial to prolonging the service life of the high-speed motor, and is convenient to install.

To further facilitate the installation of the pitch motor, the pitch motor is fixed to the seat frame side plate or the seat pan.

In order to facilitate the connection of the front and rear connecting rods and ensure the connection strength, the upper rail is respectively fixed with a front bracket and a rear bracket at the positions corresponding to the lower ends of the front connecting rod and the rear connecting rod, and the front connecting rod and the rear connecting rod are respectively hinged to the corresponding front bracket and the corresponding rear bracket.

Preferably, seat basin formula seat basin as an organic whole, like this, when can restricting the passenger to sit, the whole tenesmus height of seat basin and seat frame avoids interfering seat bottom space, is favorable to realizing lower seat Block value.

Preferably, the rear end of the seat basin is inclined upwards in an arc surface and is matched with the front of the height adjusting motor, so that the rear space below the seat is enlarged, and passengers in the rear row can obtain more spacious and comfortable foot movement space.

Has the advantages that:

the automobile seat framework adopting the technical scheme can realize a lower Block value, so that the space layout of the whole automobile is more flexible, the foot placing space of a rear-row passenger can be increased, and the automobile seat framework has the advantages of compact structure, good reliability and the like.

Drawings

FIG. 1 is a schematic structural view of a frame of an automobile seat of the utility model;

FIG. 2 is a perspective view of the hidden seat pan of FIG. 1 from one side;

FIG. 3 is a schematic view of FIG. 2 taken in another view orientation;

fig. 4 is a schematic structural view of the intermediate link.

Detailed Description

The present invention will be further described with reference to the following examples and the accompanying drawings.

The automobile seat framework shown in fig. 1 comprises a seat frame 1, a seat pan 2 and two sets of slide rails 3, wherein the two sets of slide rails 3 are arranged side by side along the width direction of an automobile body and extend along the length direction of the automobile body, and each slide rail 3 comprises a lower rail 31 used for being fixed with the floor of the automobile body and an upper rail 32 arranged on the lower rail 31 in a sliding manner. The seat pan 2 is fixed on the seat frame 1 and movably supported on the upper rail 32 of the slide rail 3 by the link mechanism 4, so that the seat can be adjusted forwards and backwards by the slide rail 3, and the adjustment of the slide rail 3 can be completed by a manual or electric mode.

Fig. 2 and 3 show the frame structure for convenient display, and the seat pan 2 is hidden, and it can be seen that the seat frame 1 is substantially rectangular frame structure, and is formed by surrounding a front horizontal tube 11 at the front end, a rear horizontal tube 12 at the rear end, and two seat frame side plates 13 at both sides, wherein the front horizontal tube 11 and the rear horizontal tube 12 are circular tube structures, both ends are respectively welded and fixed with the seat frame side plates 13, and the seat frame side plates 13 are sheet metal structures formed by stamping.

The link mechanism 4 comprises a front link 41, a rear link 42 and a middle link 43, wherein the front link 41, the rear link 42 and the middle link 43 are all two and symmetrically arranged at two sides of the seat frame 1 in the width direction, the upper ends of the two front links 41 are hinged to the front end of the seat frame side plate 13 at the same side, and the lower ends of the two front links are hinged to the front end of the upper rail 32 at the same side. The rear link 42 is hinged at its upper end to the end of the rear cross tube 12 adjacent the seat frame side panel 13 and at its lower end to the rear end of the same side upper rail 32. The front link 41 and the rear link 42 constitute a four-link mechanism together with the seat frame side plate 13 and the upper rail 32 on the same side.

The middle connecting rod 43 is installed between the front connecting rod 41 and the rear connecting rod 42 on the same side, the upper end of the middle connecting rod is installed at the middle position of the corresponding seat frame side plate 13 in the length direction in a hinged mode, and the height of the hinged position is lower than that of the upper ends of the front connecting rod 41 and the rear connecting rod 42.

In this embodiment, the lower end of one of the middle connecting rods 43 is connected with the height adjusting motor 5, and the height adjusting motor 5 is located at the front position below the seat frame 1, and the middle connecting rods 43 at both sides are connected into a whole through a synchronizing rod 44 arranged along the width direction of the seat frame between the two middle connecting rods 43 to ensure the adjustment synchronism, it should be understood that the height adjusting motor 5 can be connected to the lower end of any one of the middle connecting rods 43, and if necessary, the height adjusting motor 5 can be arranged at the lower ends of both the two middle connecting rods 43, and the height adjusting motor 5 can be fixed to any one of the seat frame 1 or the seat pan 2, or can be fixed by using a separate bracket, and can move together with the seat frame 1 and the seat pan 2 in the seat adjusting process.

When the sitting height needs to be adjusted, the height adjusting motor 5 drives the middle connecting rod 43 to push the four-bar linkage mechanism to move integrally, so that the seat frame 1 and the seat basin 2 are lifted integrally, fig. 2 and 3 show schematic diagrams when the seat frame 1 is adjusted to a lower position, and at the moment, the front connecting rod 41 and the rear connecting rod 42 are both in postures of inclining towards the rear of the seat.

In order to facilitate the installation of the front and

rear links

41, 42 and ensure the connection strength, a front bracket 33 and a rear bracket 34 are respectively fixed on each upper rail 32 at the connection position with the corresponding front and

rear links

41, 42, the front and

rear brackets

33, 34 are fixed on the upper rail 32 by welding, riveting or bolting after being separately formed into a punch, and the lower ends of the front and

rear links

41, 42 are respectively hinged on the flanges of the corresponding front and

rear brackets

33, 34.

Fig. 4 shows the specific structure of the middle link 43 in this embodiment in detail, a bending portion 431 bending downward and inward is provided at a position substantially in the middle of the middle link 43, and the synchronization rod 44 is fixed at a position close to the bending portion 431.

As can be seen from fig. 1, the seat pan 2 is of a molded integral structure, and other types of conventional seat pans may have some flexibility in the drop height of the mechanism when an occupant sits, and such a structure can fundamentally limit the drop height of the seat pan so as not to interfere with the lower space of the seat. Meanwhile, the seat adopting the framework structure has an extremely low Block value by means of the design of the connecting rod mechanism 4, so that the structural layout of the whole vehicle can be more flexible.

In addition, in this embodiment, the rear end of the seat pan 2 is the cambered surface and inclines upwards, and because the height-adjusting motor 5 is located at a position relatively close to the front, the foot activity space of the back-row passenger can be increased, and the sitting comfort of the back-row passenger is improved.

Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides an automobile seat skeleton, includes seat frame (1) and fixes seat basin (2) on this seat frame (1), seat frame (1) below is provided with two sets of slide rails (3) side by side, slide rail (3) include lower rail (31) and slide and set up last rail (32) on lower rail (31), seat frame (1) is violently managed (11) by the front, violently manage (12) and be located seat frame sideboard (13) of both sides and enclose, it supports in two sets of slide rails (3) top through link mechanism (4) activity, its characterized in that: the connecting rod mechanism (4) comprises two front connecting rods (41), two rear connecting rods (42) and two middle connecting rods (43) which are symmetrically arranged at two sides of the seat frame (1), wherein two ends of each front connecting rod (41) are respectively hinged at the front ends of the seat frame side plate (13) and the upper rail (32) at the same side, the upper end of each rear connecting rod (42) is hinged at the end part of the rear transverse pipe (12), the lower end of each rear connecting rod is hinged with the rear end of the upper rail (32) at the same side, each middle connecting rod (43) is positioned between the front connecting rod (41) and the rear connecting rod (42), the upper end of each middle connecting rod is hinged on the seat frame side plate (13) at the same side and is connected with the middle connecting rod (43) at the other side through a synchronizing rod (44), the lower end of one middle connecting rod (43) is connected with a height adjusting motor (5), the height adjusting motor (5) is positioned below the front end of the seat frame (1), and the middle connecting rods (43) can be driven by the height adjusting motor (5), the seat frame (1) is pushed, and the front connecting rod (41) and the rear connecting rod (42) are driven to rotate, so that the seat frame (1) is lifted.

2. The vehicle seat frame of claim 1, wherein: the height of a hinge point at the upper end of the middle connecting rod (43) is lower than the height of a hinge point at the upper ends of the front connecting rod (41) and the rear connecting rod (42).

3. The vehicle seat frame of claim 1, wherein: the middle connecting rod (43) is provided with a bent part (431) in the middle, and the synchronous rod (44) is fixed to a position close to the bent part (431) so as to connect the middle connecting rods (43) at two sides into a whole.

4. The vehicle seat frame of claim 1, wherein: the height adjusting motor (5) is fixed on the seat frame side plate (13) or the seat basin (2).

5. The vehicle seat frame of claim 1, wherein: the upper rail (32) is respectively fixed with a front bracket (33) and a rear bracket (34) at the lower end positions corresponding to the front connecting rod (41) and the rear connecting rod (42), and the front connecting rod (41) and the rear connecting rod (42) are respectively hinged on the corresponding front bracket (33) and the corresponding rear bracket (34).

6. The vehicle seat frame according to any one of claims 1 to 5, wherein: the seat basin (2) is an integrated seat basin.

7. The vehicle seat frame of claim 6, wherein: the rear end of the seat basin (2) is inclined upwards in a cambered surface manner.