Back row middle seat with changeable cushion posture

Abstract

The utility model discloses a cushion posture variable type back row middle seat which comprises a seat frame framework and a cushion located on the seat frame framework, a first connecting rod is arranged between the seat frame framework and the cushion, one end of the first connecting rod is hinged to the front portion of the seat frame framework, and the other end of the first connecting rod is hinged to the lower side of the cushion. The seat cushion is movably connected with the seat frame skeleton, the rear end of the seat cushion is rotatably and slidably connected with the seat frame skeleton, and a driving mechanism is arranged on the seat frame skeleton and used for driving the first connecting rod to rotate or driving the rear end of the seat cushion to slide relative to the seat frame skeleton. The utility model has the beneficial effects that the posture of the cushion of the middle seat in the back row can be freely changed, and the conversion between a five-seat automobile and a four-seat automobile is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to a rear-row middle seat with a changeable cushion posture. Background Art

[0002] The automotive industry is entering a new node. Various technological changes are helping the industry move from electrification to a new era of intelligence. The automotive market has increasingly higher requirements for electrification, intelligence, etc., and end customers are becoming more and more picky about the overall interior design and have higher and higher requirements for the comfort of their interior space.

[0003] The traditional car layout is a 2-3 layout, that is, two seats in the front row and three seats in the back row. The riding space is sufficient, but the riding comfort is not enough. Nowadays, most of the five-seater cars on the market can change the riding space of the seats, but the number of seats has not changed. Since the rear seats are mostly one-piece structures, a few manufacturers have developed foldable rear seats, which makes the car change from five seats to two seats. However, the market lacks a design that converts from a 2-3 layout to a 2-2 layout, that is, a design that converts a traditional five-seater car into a four-seater car. Utility Model Content

[0004] In view of this, the utility model provides a rear middle seat with a changeable cushion posture, the purpose of which is to realize the transformation from a traditional five-seat car to a four-seat car.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A rear middle seat with a changeable cushion posture, comprising a seat frame frame and a seat cushion located on the seat frame frame, a first connecting rod is provided between the seat frame frame and the seat cushion, one end of the first connecting rod is hinged to the front part of the seat frame frame, and the other end is hinged to the lower side of the seat cushion, the seat cushion and the seat frame frame are movably connected, and the rear end of the seat cushion is rotatably and slidably connected to the seat frame frame;

[0007] The seat frame skeleton is provided with a driving mechanism, and the driving mechanism is used to drive the first connecting rod to rotate or drive the rear end of the seat cushion to slide relative to the seat frame skeleton.

[0008] With the above structure, the driving mechanism drives the seat cushion posture change of the rear middle seat, thereby realizing the transformation of a traditional five-seat car into a four-seat car.

[0009] Preferably, the driving mechanism is an electric angle adjuster for driving the first connecting rod to rotate. The above structure is used to provide power for the seat cushion movement.

[0010] As a preferred embodiment, the driving mechanism is a motor that drives the first connecting rod to rotate, and the motor drives the first connecting rod to rotate through a gear transmission assembly. The above structure is used to provide power for the movement of the seat cushion.

[0011] As a preferred embodiment, the driving mechanism is a screw nut linear module that drives the rear end of the seat cushion to move forward and backward. The above structure is used to realize the movement of the seat cushion.

[0012] As a preferred embodiment, the driving mechanism is a gear rack structure that drives the rear end of the seat cushion to move forward and backward. The above structure is used to realize the movement of the seat cushion.

[0013] As a preferred embodiment, two first connecting rods are arranged between the seat frame and the seat cushion, and the two first connecting rods are symmetrically arranged on the left and right sides of the seat cushion. With the above structure, the seat cushion can move smoothly.

[0014] As a preferred embodiment, the upper end of the first connecting rod is hinged at the middle position of the lower side of the seat cushion. With the above structure, the seat cushion can be connected to the front armrest box by moving forward.

[0015] Preferably, a slide groove is provided on the upper side of the seat frame frame, the rear end of the seat cushion is connected to the slide groove via a pin shaft, the driving mechanism comprises a nut seat installed on the inner side of the front part of the seat frame frame, a screw rod threadedly connected to the nut seat, and a motor driving the screw rod to rotate, and the base of the motor is fixedly connected to the rear end of the seat cushion or the pin shaft. With the above structure, the seat cushion can be moved forward by the motor drive.

[0016] Preferably, the seat frame is provided with a slider that can move forward and backward, and the rear end of the seat cushion is hinged to the slider, so that the slider, the seat cushion, the first connecting rod and the seat frame form a crank slider mechanism. With the above structure, the seat cushion moves with the crank slider mechanism to achieve posture changes.

[0017] As a preferred embodiment, the nut seat is rotatably mounted on the inner side of the front part of the seat frame frame, and the slide groove is an inclined groove with a lower rear end and a higher front end. With the above mechanism, the seat cushion can be raised after moving forward.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The rear middle seat with a changeable cushion posture provided by the utility model can control the forward movement of the cushion by driving the first connecting rod to rotate or driving the cushion to slide and rotate relative to the seat frame, so as to connect with the front armrest box, so that the vehicle can be converted into a four-seater commercial vehicle, thereby meeting the driving and riding needs of changing the layout of the car from 2-3 to 2-2.

[0020] 2. A variety of structures and driving modes can be used to realize the forward movement of the seat cushion, which can be selected according to the vehicle layout and have flexible design. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of a common state of the seat cushion 2;

[0022] Figure 2It is a schematic diagram of the posture change of the seat cushion 2 and the connection with the armrest box 4;

[0023] Figure 3 It is a schematic diagram of another structure of the utility model;

[0024] Figure 4 It is a schematic diagram of another structure of the utility model;

[0025] Figure 5 It is a schematic diagram of the layout of the car before and after the posture of the seat cushion 2 changes. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with embodiments and drawings.

[0027] like Figure 1 As shown, a rear middle seat with a seat cushion 2 with a variable posture comprises a seat frame frame 1 and a seat cushion 2 located on the seat frame frame 1, a first connecting rod 3 is provided between the seat frame frame 1 and the seat cushion 2, one end of the first connecting rod 3 is hinged to the front part of the seat frame frame 1, and the other end is hinged to the lower side of the seat cushion 2, preferably in the middle position of the lower side of the seat cushion 2, the seat cushion 2 and the seat frame frame 1 are movably connected, the rear end of the seat cushion 2 is rotatably and slidably connected to the seat frame frame 1, a driving mechanism is provided on the seat frame frame 1, the driving mechanism is used to drive the first connecting rod 3 to rotate or drive the rear end of the seat cushion 2 to slide relative to the seat frame frame 1 to realize the forward movement of the seat cushion 2.

[0028] like Figure 2 and Figure 5 As shown, the seat cushion 2 can move forward to connect with the front armrest box 4, increasing the usable area of ​​the armrest box 4, and transforming the car from a traditional 2-3 layout five-seater car to a 2-2 layout business car. In the specific implementation structure, the driving mechanism can be an electric adjuster that drives the first connecting rod 3 to rotate, or a motor that drives the first connecting rod 3 to rotate. The motor can specifically drive the first connecting rod 3 to rotate through a gear transmission assembly; or, the driving mechanism can also be a screw nut linear module or a gear rack mechanism that drives the rear end of the seat cushion 2 to move forward and backward. Two first connecting rods 3 are provided between the seat frame 1 and the seat cushion 2. The two first connecting rods 3 are symmetrically arranged on the left and right sides of the seat cushion 2. According to the riding space of the car, an adaptive driving structure can be selected to enable the seat cushion 2 to change its posture smoothly and quickly.

[0029] The preferred implementation structures of the two driving mechanisms are listed below.

[0030] Embodiment 1:

[0031] like Figure 1 and Figure 2As shown, a slider 1a that can move forward and backward is provided on the seat frame 1, and the rear end of the seat cushion 2 is hinged to the slider 1a, so that the slider 1a, the seat cushion 2, the first connecting rod 3 and the seat frame 1 form a crank slider mechanism, and the crank slider mechanism has a degree of freedom of 1. Only by driving the first connecting rod 3 to rotate or driving the slider 1a to slide forward and backward can the crank slider mechanism be powered to drive the seat cushion 2 to move. When the seat cushion 2 is in the folded state, the slider 1a is located at the rear end of the seat frame 1, and in the unfolded state, the slider 1a is located at the front end of the seat frame 1, and the movement is smooth and stable.

[0032] Embodiment 2:

[0033] like Figure 3 and Figure 4 As shown, the upper part of the seat frame frame 1 is provided with a slide groove 1b extending along its length direction, and the rear end of the seat cushion 2 is matched with the slide groove 1b through a cylindrical pin shaft 5. The pin shaft 5 can move relative to the slide groove 1b and rotate relative to the slide groove 1b, so that the rear end of the seat cushion 2 can rotate and slide in the slide groove 1b, and the two ends of the first connecting rod 3 are respectively hinged at the front part of the seat frame frame 1 and the middle part of the seat cushion 2. The driving mechanism includes a nut seat 6 rotatably mounted on the inner side of the front part of the seat frame frame 1, a screw rod 7 threadedly connected to the nut seat 6, and a motor 8 driving the screw rod 7 to rotate, and the base part of the motor 8 is fixedly connected to the rear end of the seat cushion 2 or the pin shaft 5. Based on this, the motor 8 can drive the seat cushion 2 to move forward when it works. The conversion from five seats to four seats is realized. In this embodiment, the slide groove 1b is an inclined groove with a lower rear end and a higher front end, preferably an arc-shaped inclined groove, so that the seat cushion 2 can be lifted after moving forward.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make a variety of similar expressions without violating the purpose and claims of the present invention, and such changes fall within the scope of protection of the present invention.

Claims

1. A rear middle seat with a changeable cushion posture, comprising a seat frame frame (1) and a seat cushion (2) located on the seat frame frame (1), wherein a first connecting rod (3) is provided between the seat frame frame (1) and the seat cushion (2), and characterized in that: One end of the first connecting rod (3) is hinged to the front part of the seat frame frame (1), and the other end is hinged to the lower side of the seat cushion (2); the seat cushion (2) and the seat frame frame (1) are movably connected, and the rear end of the seat cushion (2) is rotatably and slidably connected to the seat frame frame (1); The seat frame skeleton (1) is provided with a driving mechanism, which is used to drive the first connecting rod (3) to rotate or drive the rear end of the seat cushion (2) to slide relative to the seat frame skeleton (1).

2. The rear middle seat with a changeable cushion posture according to claim 1, characterized in that: The driving mechanism is an electric angle adjuster that drives the first connecting rod (3) to rotate.

3. The rear middle seat with a changeable cushion posture according to claim 1, characterized in that: The driving mechanism is a motor that drives the first connecting rod (3) to rotate, and the motor drives the first connecting rod (3) to rotate through a gear transmission assembly.

4. The rear middle seat with a changeable cushion posture according to claim 1, characterized in that: The driving mechanism is a screw nut linear module that drives the rear end of the seat cushion (2) to move forward and backward.

5. The rear middle seat with a changeable cushion posture according to claim 1, characterized in that: The driving mechanism is a gear rack structure for driving the rear end of the seat cushion (2) to move forward and backward.

6. The rear middle seat with a changeable cushion posture according to claim 1, characterized in that: Two first connecting rods (3) are arranged between the seat frame (1) and the seat cushion (2), and the two first connecting rods (3) are symmetrically arranged on the left and right sides of the seat cushion (2).

7. The rear middle seat with a changeable cushion posture according to claim 1, characterized in that: The upper end of the first connecting rod (3) is hinged at the middle position of the lower side of the seat cushion (2).

8. The rear middle seat with a changeable cushion posture according to claim 1, characterized in that: The seat frame frame (1) is provided with a slide groove (1b) on the upper side, and the rear end of the seat cushion (2) is connected to the slide groove (1b) via a pin shaft (5). The driving mechanism comprises a nut seat installed on the inner side of the front part of the seat frame frame (1), a screw rod threadedly connected to the nut seat, and a motor driving the screw rod to rotate, and the base part of the motor is fixedly connected to the rear end of the seat cushion or the pin shaft.

9. The rear middle seat with a changeable cushion posture according to claim 1, characterized in that: The seat frame frame (1) is provided with a slider (1a) which can move forward and backward, and the rear end of the seat cushion (2) is hinged to the slider (1a), so that the slider (1a), the seat cushion (2), the first connecting rod (3) and the seat frame frame (1) form a crank slider mechanism.

10. The rear middle seat with a changeable cushion posture according to claim 8, characterized in that: The nut seat is rotatably mounted on the inner front side of the seat frame skeleton (1); the slide groove (1b) is an inclined groove with a lower rear end and a higher front end.

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