CN219544549U - Adjustable seat - Google Patents

Abstract

The utility model relates to an adjustable seat which comprises a sliding rail, a rear connecting rod, a wallboard, an outer front connecting rod and an inner front connecting rod, wherein the bottom ends of the rear connecting rod and the inner front connecting rod are respectively pivoted on the sliding rail, the top ends of the rear connecting rod and the outer front connecting rod are respectively pivoted on the wallboard, the adjustable seat further comprises a first motor for driving the rear connecting rod through a rack, and the first motor is arranged on the sliding rail. According to the adjustable seat, the zero pressure adjustment can be realized by the inner front connecting rod while the height adjustment function of the seat is realized, various travel requirements can be better met, the structure is lighter, and the practicability is wider. Compared with the high adjustment of the wallboard disconnecting type rack in the prior art, the wallboard is integrated, and is arranged on the sliding rail in a driving way; meanwhile, after the arrangement of the rack and the rear connecting rod is optimized, when the inner front connecting rod is adjusted (zero pressure adjustment), the cushion wall plate can rotate around the cushion rear pipe, zero pressure adjustment can be realized when the cushion is at the lowest position of high adjustment, and the rigidity of the seat is more stable.

Description

Adjustable seat

Technical Field

The present utility model relates to vehicle seats, and more particularly to an adjustable seat.

Background

With the development of the automobile industry and the change of the automobile market, in order to improve the user experience, more, higher and more comfortable demands are put forward on the functions that can be realized by the automobile.

CN113212258B discloses a five-bar structure of a seat, which can realize a comfortable angle of human body with zero gravity (zero pressure) to make passengers achieve a comfortable and relaxed state. However, the motor for driving the rear connecting rod is mounted on the wall plate, which causes the wall plate to break, weakens the strength, and requires an additional support to meet the strength requirement, and has the advantages of large weight, relatively complex structure and high cost. In addition, the motor on the wallboard drives the rear connecting rod through the rack, drives the rear pipe and the wallboard to realize rear high adjustment, and causes insufficient rigidity at the rear pipe. As shown in fig. 14, the rotation of the seat cushion around the fixed point O1 of the rear link may cause the connection of the rack and the rear link to be unstable due to the rotation of the rear link in an actual collision, and the zero pressure adjustment may cause the seat cushion to interfere with the floor and the slide rail at the lowest position of the low Block height.

Disclosure of Invention

In order to solve the problems of weakening the strength of the wallboard and the like in the prior art, the utility model provides an adjustable seat.

The adjustable seat comprises a sliding rail, a rear connecting rod, a wallboard, an outer front connecting rod and an inner front connecting rod, wherein the bottom ends of the rear connecting rod and the inner front connecting rod are respectively pivoted on the sliding rail, the top ends of the rear connecting rod and the outer front connecting rod are respectively pivoted on the wallboard, the adjustable seat further comprises a first motor for driving the rear connecting rod through a rack, and the first motor is arranged on the sliding rail.

Preferably, the rack is pivotally connected to the rear link.

Preferably, the inner front connecting rod comprises a connecting frame fixedly connected to the sliding rail, and the motor box body of the first motor is fixedly connected to the connecting frame.

Preferably, the rear link is pivotally connected to the connecting frame.

Preferably, the adjustable seat further comprises a blocking point column for restraining the rack, and the blocking point column is fixedly connected to the connecting frame.

Preferably, the outer front link is pivotally connected to the wall plate and the inner front link, respectively, and the inner front link is pivotally connected to the outer front link and the slide rail, respectively.

Preferably, the adjustable seat further comprises a second motor for realizing forward lifting of the zero-pressure cushion inclination angle.

Preferably, the adjustable seat comprises a rear circular tube connecting the wall plates on the left side and the right side of the cushion frame, and the cushion wall plate rotates around the rear circular tube in the zero-pressure cushion inclination angle front lifting process.

Preferably, the track rail comprises an upper track and a lower track, and the adjustable seat further comprises a third motor for driving the upper track to move relative to the lower track.

According to the adjustable seat, the zero pressure adjustment can be realized while the seat height adjustment function is realized, various travel requirements can be better met, the structure is lighter, and the practicability is wider. Compared with the high adjustment of the wallboard disconnecting type rack in the prior art, the wallboard is integrated, and is arranged on the sliding rail in a driving way; meanwhile, after the arrangement of the rack and the rear connecting rod is optimized, when the inner front connecting rod is adjusted (zero pressure adjustment), the cushion wall plate can rotate around the cushion rear pipe, zero pressure adjustment can be realized when the cushion is at the lowest position, and the rigidity of the seat is more stable. Compared with the prior art, the utility model has the advantages of rigidity improvement, simple assembly, reduced parts, cost saving, light weight and smaller arrangement space requirement (the arrangement of 183mm of low Block is feasible, and the arrangement of larger Block can be satisfied).

Drawings

Fig. 1 shows a schematic overall structure of an adjustable seat according to a preferred embodiment of the present utility model.

Fig. 2 shows the zero pressure adjustment process of fig. 1 at the height adjustment lowest position.

Fig. 3 is a schematic diagram of the structure of fig. 2.

Fig. 4 is a top view of fig. 1.

Fig. 5 shows the slide rail and the connecting frame of fig. 4.

Fig. 6 shows another embodiment of the connection of the slide rail and the connecting frame.

Fig. 7 is a first exploded view of fig. 4.

Fig. 8 is a second exploded view of fig. 4.

Fig. 9 shows a stopper post mounted on the upper rail.

Fig. 10 shows the restraint of the rack by the stopper post.

Fig. 11 shows the height adjustment process of fig. 1.

Fig. 12 is a view corresponding to fig. 11 of the delete motor and upper rail.

Fig. 13 is a schematic view of the structure of fig. 11.

Fig. 14 shows a zero pressure adjustment process of the prior art five-bar linkage at the height adjustment lowest position.

Detailed Description

Preferred embodiments of the present utility model will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 3, the adjustable seat according to a preferred embodiment of the present utility model includes a slide rail 1, a rear link 2, a wall plate 3, an outer front link 4 and an inner front link 5, wherein bottom ends of the rear link 2 and the inner front link 5 are respectively pivoted to the slide rail 1, two ends of the rear link 2 are respectively pivoted to rear ends of the slide rail 1 and the wall plate 3, two ends of the wall plate 3 are respectively pivoted to top ends of the rear link 2 and the outer front link 4, two ends of the outer front link 4 are respectively pivoted to front ends of the wall plate 3 and the inner front link 5, and two ends of the inner front link 5 are respectively pivoted to front ends of the outer front link 4 and the slide rail 1. In particular, the adjustable seat according to the utility model further comprises a first motor 7 (see fig. 1) driving the rear link 2 via a rack 6 (see fig. 2 and 3), which is mounted on the slide rail 1. Compared with the prior art that the motor is arranged on the wallboard, the utility model does not need to additionally strengthen the wallboard by arranging the motor on the sliding rail, has light weight and saves cost.

As shown in fig. 4, the adjustable seat according to the utility model further comprises a second motor 8 for achieving zero-pressure front lift (SNV, cushion reclining in combination with the backrest). It should be appreciated that the specific mounting structure and location of the second motor 8 is similar to the prior art and will not be described in detail herein. In particular, as shown in fig. 2, the adjustable seat according to the present utility model rotates the cushion pan 3 around the rear circular tube 31 when the zero pressure adjustment is performed by the second motor 8. Compared with the prior art that the pivot point of the rear connecting rod and the sliding rail is directly used as a rotation point O1 (see fig. 14), the rotation point O of the cushion is changed, as shown in fig. 3, the rack 6 and the rear connecting rod 2 are not moved, and in actual collision, the connection stability of the rack 6 and the rear connecting rod 2 is better; compared with the prior art (see fig. 14), when the lowest position is adjusted by the low Block height, the zero pressure can still be adjusted, and the condition of interference with the surface of the slide rail floor can not exist. Therefore, the rear circular tube 31 of the utility model is fixedly restrained by the rack 6 and the rear connecting rod 2, the rear seat cushion is driven to realize rear high adjustment, the rigidity of the seat cushion is improved, and the space requirement of low Block can be met. In addition, as shown in fig. 4, the adjustable seat according to the present utility model further includes a third motor 9, wherein the slide rail 1 has an upper rail and a lower rail, the lower rail is fixedly installed on the floor of the vehicle, and the upper rail is driven by the third motor 9 to be movable back and forth with respect to the lower rail. It should be understood that the specific mounting structure and location of the third motor 9 are similar to those of the prior art, and will not be described herein.

As shown in fig. 5, the adjustable seat according to the present utility model further includes a connection frame 10 welded to the upper rail of the slide rail 1. In another embodiment, as shown in FIG. 6, the connector frame is mounted and secured to the upper rail of the slide rail by fasteners 10' (e.g., bolts).

As shown in fig. 7 to 8, the first motor 7 of the adjustable seat according to the present embodiment includes a motor case 71, and a mounting bracket of the motor case 71 itself is provided with a threaded hole, for example, three mounting bolts 72 for fixing the motor case 71 to the connection frame 10. For example, a step bolt 21 connects the link 10 and the rear link 2. For example, a step bolt 61 connects the rack 6 to the rear link 2 while meshing with a pinion 73 of the first motor 7.

As shown in fig. 7 and 9, the adjustable seat according to the present embodiment further includes a stopper post 11, for example, a mounting bolt 111 to fix the stopper post 11 to the link 10. As shown in fig. 10, the lower end of the rack 6 is bonded to the pinion 73, and the upper end of the rack 6 is restrained by the stopper post 11.

As shown in fig. 11, during the height adjustment (SHV), the motor housing 71 is stationary, and the pinion 73 is engaged to drive the rack 6 to raise the seat cushion from the lowest position in the left view to the highest position in the right view. As shown in fig. 12, the center of the pinion 73 forms a first rotation point, the center of the step bolt 61 forms a second rotation point, the center of the step bolt 21 forms a third rotation point, as shown in fig. 13, the inner front link 5 remains stationary, the pinion 73 of the first motor 7 drives the rack 6 to drive, and simultaneously the rear link 2 is driven to rotate around the step bolt 21 (upper rail rotation point) by the step bolt 61. The rear circular tube 31 is connected with the wall plates 3 on the left side and the right side of the cushion frame, so that the synchronous movement of the left side and the right side of the frame is realized.

The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the scope of the present utility model, and various modifications can be made to the above-described embodiment of the present utility model. All simple, equivalent changes and modifications made in accordance with the claims and the specification of this application fall within the scope of the patent claims. The present utility model is not described in detail in the conventional art.

Claims (9)

1. The utility model provides an adjustable seat, its characterized in that, this adjustable seat includes slide rail, back connecting rod, wallboard, outer preceding connecting rod and interior preceding connecting rod, wherein, the bottom of back connecting rod and interior preceding connecting rod pin joint respectively in the slide rail, and the top of back connecting rod and outer preceding connecting rod pin joint respectively in the wallboard, this adjustable seat still includes the first motor through rack drive back connecting rod, and first motor is installed on the slide rail.

2. The adjustable seat according to claim 1, wherein the rack is pivotally connected to the rear link.

3. The adjustable seat according to claim 1, wherein the inner front link comprises a link fixedly connected to the slide rail, and the motor housing of the first motor is fixedly connected to the link.

4. The adjustable seat according to claim 3, wherein the rear link is pivotally connected to the link.

5. The adjustable seat according to claim 3, further comprising a stop post for restraining the rack, the stop post being fixedly attached to the connector.

6. The adjustable seat according to claim 1, wherein the outer front link is pivotally connected to the wall plate and the inner front link, respectively, and the inner front link is pivotally connected to the outer front link and the slide rail, respectively.

7. The adjustable seat according to claim 6, further comprising a second motor for effecting zero-pressure cushion tilt forward lift.

8. The adjustable seat according to claim 7, comprising a rear circular tube connecting the panels on the left and right sides of the cushion frame, the cushion panel rotating about the rear circular tube during zero-pressure cushion tilt front lift.

9. The adjustable seat according to claim 1, wherein the track rail comprises an upper track and a lower track, the adjustable seat further comprising a third motor that drives the upper track relative to the lower track.