Front-row seat capable of falling flat forwards

Abstract

The utility model discloses a front-row seat capable of falling flat forwards, which comprises a second driving component and a slide rail assembly composed of an upper slide rail module and a lower slide rail module, the rear end of the upper slide rail module is fixedly provided with an adapter component extending upwards, and a backrest framework is rotatably mounted on the adapter component; a seat cushion framework is arranged on the upper side of the upper sliding rail module, a first connecting rod is arranged between the front portion of the seat cushion framework and the upper sliding rail module, the two ends of the first connecting rod are hinged to the seat cushion framework and the upper sliding rail module respectively, and the rear portion of the seat cushion framework is assembled on the upper sliding rail module in a front-back moving mode. The second driving assembly is used for driving the seat cushion framework to move back and forth relative to the upper sliding rail module. The seat cushion framework assembly has the advantages that the whole seat cushion framework can move forwards relative to the upper sliding rail module, space interference below the backrest framework is eliminated, a forward folding space is provided for the backrest framework, and the backrest framework can be flattened forwards at a large angle.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to a front-row seat which can be folded forward. Background Art

[0002] Car seats are one of the most important parts of a car, which can provide a comfortable and safe riding position for the driver and passengers. With the expansion of the automobile market, customers have higher and higher requirements for the intelligence and comfort of cars, especially for passengers in the back seats, who hope to have more space for activities when resting.

[0003] At present, some front seats have the function of tilting forward, that is, the backrest can be adjusted forward to provide rear passengers with better foot space and comfortable leg support. However, in the prior art, the backrest of the front seat is usually rotatably mounted on the rear end of the seat cushion frame. When the backrest rotates forward, the seat cushion is stationary relative to the backrest. The backrest is restricted by the interference of the seat cushion and cannot be tilted forward at a large angle, resulting in limited activity space for rear passengers and the passengers' legs cannot get more comfortable support. Utility Model Content

[0004] In view of this, the utility model provides a front seat that can be folded forward, which solves the problem of spatial interference of the seat cushion when the backrest is adjusted forward, allowing the backrest to be folded forward at a large angle, thereby improving the activity space and riding comfort of the rear passengers.

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

[0006] A front seat that can be folded flat forwards, the key point is that it includes:

[0007] A slide rail assembly, the slide rail assembly comprising a lower slide rail module and an upper slide rail module slidably arranged on the lower slide rail module, the lower slide rail module is used to be assembled to the vehicle floor, and a transfer component extending upward is fixedly arranged at the rear end of the upper slide rail module;

[0008] A backrest frame, which is rotatably mounted on the adapter component, and a first drive assembly is provided on the backrest frame, and the first drive assembly is used to drive the backrest frame to rotate forward or backward;

[0009] A seat cushion frame is located on the upper side of the upper slide rail module, a first connecting rod is provided between the front portion of the seat cushion frame and the upper slide rail module, two ends of the first connecting rod are respectively hinged to the seat cushion frame and the upper slide rail module, and the rear portion of the seat cushion frame is assembled on the upper slide rail module so as to be movable forward and backward; and

[0010] The second driving assembly is used to drive the seat cushion frame to move forward and backward relative to the upper slide rail module. When the second driving assembly drives the rear part of the seat cushion frame to move forward, the first connecting rod can rotate around the hinge center between it and the upper slide rail module to drive the front part of the seat cushion frame to move forward.

[0011] With the above structure, when the backrest needs to be tilted forward, the second drive assembly drives the rear part of the seat cushion frame to move forward. Since the two ends of the first connecting rod are respectively hinged to the front part of the seat cushion frame and the upper slide rail module, during the process of the rear part of the seat cushion frame moving forward, the first connecting rod can rotate around the hinge center between it and the upper slide rail module, thereby driving the front part of the seat cushion frame to move forward, that is, the seat cushion frame as a whole moves forward relative to the upper slide rail module, thereby eliminating the spatial interference under the backrest frame, providing space for the backrest frame to fold forward, so that the backrest frame can be tilted forward at a large angle.

[0012] Preferably, the upper slide rail module comprises an upper rail, the upper rail is provided with a slide groove extending along its length direction, and the rear part of the seat cushion frame is assembled in the slide groove so as to be movable forward and backward through a supporting component.

[0013] Preferably: the second drive assembly includes a motor, a screw driven to rotate by the motor, and a nut sleeve threaded on the screw shaft, the base of the motor is rotatably mounted on the upper slide rail module, the nut sleeve is fixedly connected to the support component, the support component is rotatably connected to the rear part of the seat cushion frame through a pin shaft, and the pin shaft is supported in the slide groove.

[0014] Preferably, the slide groove comprises an inclined section and a horizontal section which are sequentially connected from front to back, and the height of the front end of the inclined section is lower than the height of the rear end.

[0015] Preferably, the upper rails are provided in two groups, the two groups of the upper rails are symmetrically arranged, and the two sides of the rear portion of the seat cushion frame are assembled on the two groups of the upper rails so as to be movable forward and backward.

[0016] Preferably, two groups of the first connecting rods are provided, the upper ends of the two groups of the first connecting rods are respectively hinged to the two sides of the front part of the seat cushion frame, and the lower ends of the two groups of the first connecting rods are respectively hinged to the corresponding upper rails.

[0017] Preferably, the second drive assembly is arranged on the inner side of one set of upper rails, the base of the motor is rotatably mounted on the inner front part of the upper rails, and the lead screw extends backward along the length direction of the upper rails.

[0018] Preferably, a supporting cross bar is provided at the rear of the seat cushion frame, and both ends of the supporting cross bar are connected with adapters extending downward, and the pin shaft is assembled at the lower part of the adapter.

[0019] Preferably, the first connecting rod is arranged obliquely between the front part of the seat cushion frame and the upper slide rail module.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] 1. A front-row seat that can be folded forward provided by the utility model is adopted. When the backrest needs to be folded forward, the second drive assembly drives the rear part of the seat cushion frame to move forward. Since the two ends of the first connecting rod are respectively hinged to the front part of the seat cushion frame and the upper slide rail module, during the process of the rear part of the seat cushion frame moving forward, the first connecting rod can rotate around the hinge center between it and the upper slide rail module, thereby driving the front part of the seat cushion frame to move forward, that is, the seat cushion frame as a whole moves forward relative to the upper slide rail module, thereby eliminating the spatial interference under the backrest frame, providing space for the backrest frame to fold forward, so that the backrest frame can be folded forward at a large angle, thereby improving the activity space and riding comfort of the rear passengers.

[0022] 2. A front row seat that can be folded forward provided by the utility model is adopted, in which the first connecting rod is tilted and arranged between the seat cushion frame and the upper slide rail module, that is, when the seat is in a sitting state, the upper end of the first connecting rod is tilted and arranged backward relative to the lower end. When the rear part of the seat cushion frame moves forward, the first connecting rod can be rotated from rear to top and then forward with the hinge point at its lower end as the center, thereby being able to drive the seat cushion frame to move forward to the maximum extent, further increasing the avoidance space behind the seat cushion frame, and then increasing the forward tilting angle of the backrest frame.

[0023] 3. The front row seat that can be folded forward provided by the utility model has the technical advantages of simple structure and compact layout, and by arranging the motor at the front end of the inner side of the upper rail, space is reserved for the rear part of the seat cushion frame so that the backrest frame can be folded forward. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the front seats;

[0025] Figure 2 It is a side view of the front seat in the sitting position;

[0026] Figure 3 It is a side view of the front seats in the folded state;

[0027] Figure 4 is a cross-sectional view of the front seat in a sitting position;

[0028] Figure 5 is a cross-sectional view of the front seats in a folded state;

[0029] Figure 6 It is a structural schematic diagram of the slide rail assembly 1;

[0030] Figure 7 It is a side view of one set of upper rails 11. DETAILED DESCRIPTION

[0031] The utility model is further described below in conjunction with embodiments and drawings.

[0032] like Figure 1 As shown, a front seat that can be folded forward comprises a slide rail assembly 1, wherein the slide rail assembly comprises a lower slide rail module 1b mounted on the vehicle floor, and an upper slide rail module 1a slidably arranged on the lower slide rail module 1b. The rear end of the upper slide rail module 1a is fixedly provided with an upwardly extending adapter component 1c, and a backrest frame 2 is rotatably mounted on the adapter component 1c. A first drive component is provided on the backrest frame 2, and the first drive component can drive the backrest frame 2 to rotate forward or backward with the adapter component 1c as the center. Figure 2 As shown, a seat cushion frame 3 is provided on the upper side of the upper slide rail module 1a, and a first connecting rod 4 is provided between the front portion of the seat cushion frame 3 and the upper slide rail module 1a, and the two ends of the first connecting rod 4 are respectively hinged to the front portion of the seat cushion frame 3 and the upper slide rail module 1a, and the rear portion of the seat cushion frame 3 can be assembled on the upper slide rail module 1a so as to be movable forward and backward. A front row seat that can be folded forward and flat also includes a second drive assembly 5, and the second drive assembly 5 can drive the seat cushion frame 3 to move forward and backward relative to the upper slide rail module 1a. In the process of the second drive assembly 5 driving the rear portion of the seat cushion frame 3 to move forward, the first connecting rod 4 can rotate around the hinge center between it and the upper slide rail module 1a to drive the front portion of the seat cushion frame 3 to move forward.

[0033] Based on the above structural design, the working principle of the front seat provided in this embodiment is as follows: Figures 1 to 3 , the second drive assembly 5 drives the rear part of the seat cushion frame 3 to move forward. Since the two ends of the first connecting rod 4 are respectively hinged to the front part of the seat cushion frame 3 and the upper slide rail module 1a, during the process of the rear part of the seat cushion frame 3 moving forward, the first connecting rod 4 can rotate around the hinge center between it and the upper slide rail module 1a, thereby driving the front part of the seat cushion frame 3 to move forward, that is, the seat cushion frame 3 as a whole moves forward relative to the upper slide rail module 1a, thereby eliminating the spatial interference below the backrest frame 2, providing space for the backrest frame 2 to fold forward, so that the backrest frame 2 can be tilted forward at a large angle, thereby improving the activity space and riding comfort of the rear passengers. When using the function of tilting the backrest forward, first use the second drive assembly 5 to control the seat cushion frame 3 to move forward, and then drive the backrest frame 2 to rotate forward to completely tilt through the first drive assembly. Conversely, when restoring the seat to a sitting position, first drive the backrest frame 2 to rotate backward to an upright state, and then control the seat cushion frame 3 to move backward through the second drive assembly 5.

[0034] Further, such as Figure 4 and 7As shown, the upper slide rail module 1a includes an upper rail 11, and the upper rail 11 is provided with a slide groove a extending along its length direction, and the rear part of the seat cushion frame 3 is assembled in the slide groove a so as to be movable forward and backward through the support component 8. With such a design, the slide groove a has the function of guiding and limiting, so that the forward movement of the seat cushion frame 3 can be smoother and more accurate.

[0035] Please refer to Figure 1 and 4 The second driving assembly 5 includes a motor 52, a screw rod 53 driven to rotate by the motor 52, and a nut sleeve 51 threadedly mounted on the screw rod 53, wherein the base of the motor 52 is rotatably mounted on the upper slide rail module 1a, the nut sleeve 51 is fixedly connected to the support component 8, and the support component 8 is rotatably connected to the rear of the seat cushion frame 3 through the pin shaft b, and the pin shaft b is supported in the slide groove a. The motor 52 drives the nut sleeve 51 to perform linear motion on the screw rod 53, which can drive the seat cushion frame 3 to move along the length direction of the slide groove a.

[0036] Re-attend Figure 7 In this embodiment, the slide groove a is arranged in the middle and rear areas of the upper rail 11. The slide groove a includes an inclined section a1 and a horizontal section a2 which are connected in sequence from front to back. The height of the front end of the inclined section a1 from the horizontal plane is lower than that of the rear end. When the seat is in a sitting position, the pin b is located at the rear end of the slide groove a (refer to Figure 4 ), when the second driving assembly 5 drives the rear part of the seat cushion frame 3 to move forward, the pin shaft b, under the guidance of the slide groove a, first passes through the horizontal section a2 and then slides downward to the front end of the inclined section a1 (refer to Figure 5 ), that is, the seat cushion frame 3 is driven to move horizontally forward first and then downward. Since the seat cushion design of the car seat is usually slightly tilted backward and downward, such a movement trajectory can further increase the avoidance space behind the seat cushion frame 3 to ensure that the backrest frame 2 can be tilted forward.

[0037] like Figure 2 and 4 As shown, in this embodiment, the first link 4 is arranged obliquely between the front part of the seat cushion frame 3 and the upper slide rail module 1a, that is, when the seat is in the sitting position, the upper end of the first link 4 is hinged to the front part of the seat cushion frame 3 at an angle to the rear. The advantage of this design is that when the seat cushion frame 3 moves forward, the first link 4 rotates from the rear to the top and then downward with its lower end hinge point as the center, ensuring the maximum rotation angle of the first link 4, so that the first link 4 can maximize the movement of the seat cushion frame 3 forward to the farthest distance reference Figure 5In addition, when the upper end of the first connecting rod 4 rotates upward to the highest point, the rear part of the seat cushion frame 3 can be tilted downward, further increasing the space for the backrest frame 2 to fold downward. Thereafter, the first connecting rod 4 continues to rotate downward, and the seat cushion frame 3 can move forward and downward as a whole, thus maximizing the avoidance space of the seat cushion frame 3 and increasing the forward tilting angle of the backrest frame 2, thereby providing sufficient activity space for rear passengers and improving the riding comfort of rear passengers.

[0038] Please refer to Figure 1 and 6 In this embodiment, the lower slide rail module 1b includes two sets of lower rails 12 symmetrically assembled on the vehicle floor in parallel, and two sets of upper rails 11 are provided. The two sets of upper rails 11 are slidably arranged on the two sets of lower rails 12, and a crossbeam 1d is fixedly supported between the two sets of upper rails 11 to facilitate the two sets of upper rails 11 to slide forward and backward synchronously. Figure 3 and Figure 4 The two sides of the rear portion of the seat cushion frame 3 can be assembled on two sets of upper rails 11 so as to be movable forward and backward.

[0039] Further, such as Figure 1 As shown, in order to ensure the smoothness and stability of the seat cushion frame 3 sliding forward as a whole, in this embodiment, a support cross bar 31 is provided at the rear of the seat cushion frame 3, and then combined with Figure 3 and Figure 4 It can be seen that the two ends of the support crossbar 31 are connected to the adapter 6 extending downward, the number of the pins b is two, respectively assembled at the lower part of the two adapters 6, and the two pins b are respectively supported in the corresponding slide grooves a of the upper rail 11, and the support component 8 is rotatably connected to one of the pins b. The nut sleeve 51 drives the support component 8 to slide forward or backward in the slide groove a, and can synchronously drive the pin b on the adapter 6 on the other side to slide forward or backward synchronously.

[0040] Please refer to Figure 1 There are two groups of first connecting rods 4, which are arranged on both sides of the front part of the seat cushion frame 3 respectively. The upper ends of the two groups of first connecting rods 4 are respectively hinged to the two sides of the front part of the seat cushion frame 3, and the lower ends of the two groups of first connecting rods 4 are respectively hinged to the upper rails 11 on the same side, thereby ensuring the balanced and smooth movement of the seat cushion frame 3.

[0041] For example Figure 1 As shown, the second drive assembly 5 is arranged on the inner side of one set of upper rails 11, so that the pin shaft b can smoothly enter the inclined section a1 from the horizontal section a2. Figure 4 It can be seen that the base of the motor 52 is rotatably mounted on the inner front portion of the upper rail 11 , and the lead screw 53 extends backward along the length direction of the upper rail 11 .

[0042] Based on the structural layout of the above-mentioned second drive component 5, the compactness of the internal structure of the seat cushion is improved, the components are simplified, and it has the advantage of occupying a small space. In addition, by placing the motor 52 in front, space is reserved for the rear part of the seat cushion frame 3, which is more conducive to achieving the forward tilting of the backrest frame 2.

[0043] 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 front seat that can be folded forward, characterized in that: include: A slide rail assembly (1), the slide rail assembly comprising a lower slide rail module (1b) and an upper slide rail module (1a) slidably arranged on the lower slide rail module (1b), the lower slide rail module (1b) being used for being assembled to a vehicle floor, and a transfer component (1c) extending upward is fixedly arranged at the rear end of the upper slide rail module (1a); A backrest frame (2) is rotatably mounted on the adapter component (1c); a first drive assembly is provided on the backrest frame (2), and the first drive assembly is used to drive the backrest frame (2) to rotate forward or backward; A seat cushion frame (3) is located on the upper side of the upper slide rail module (1a), a first connecting rod (4) is provided between the front portion of the seat cushion frame (3) and the upper slide rail module (1a), two ends of the first connecting rod (4) are respectively hinged to the seat cushion frame (3) and the upper slide rail module (1a), and the rear portion of the seat cushion frame (3) is assembled on the upper slide rail module (1a) so as to be movable forward and backward; as well as A second driving assembly (5) is used for driving the seat cushion frame (3) to move forward and backward relative to the upper slide rail module (1a); when the second driving assembly (5) drives the rear portion of the seat cushion frame (3) to move forward, the first connecting rod (4) can rotate around the hinge center between it and the upper slide rail module (1a) to drive the front portion of the seat cushion frame (3) to move forward.

2. The front seat that can be folded forward according to claim 1, characterized in that: The upper slide rail module (1a) comprises an upper rail (11), the upper rail (11) is provided with a slide groove (a) extending along its length direction, and the rear part of the seat cushion frame (3) is assembled in the slide groove (a) through a supporting component (8) so as to be movable forward and backward.

3. The front seat that can be folded forward according to claim 2, characterized in that: The second driving assembly (5) comprises a motor (52), a screw rod (53) driven to rotate by the motor (52), and a nut sleeve (51) threadedly mounted on the screw rod (53); the base of the motor (52) is rotatably mounted on the upper slide rail module (1a); the nut sleeve (51) is fixedly connected to the support component (8); the support component (8) is rotatably connected to the rear part of the seat cushion frame (3) via a pin shaft (b); and the pin shaft (b) is supported in the slide groove (a).

4. The front seat that can be folded forward according to claim 2, characterized in that: The slide groove (a) comprises an inclined section (a1) and a horizontal section (a2) which are connected in sequence from front to back, and the height of the front end of the inclined section (a1) is lower than the height of the rear end.

5. The front seat that can be folded forward according to claim 3, characterized in that: The upper rails (11) are provided in two groups, the two groups of the upper rails (11) are symmetrically arranged, and the two sides of the rear part of the seat cushion frame (3) are assembled on the two groups of the upper rails (11) so as to be movable forward and backward.

6. The front seat that can be folded forward according to claim 5, characterized in that: The first connecting rod (4) is provided with two groups, the upper ends of the two groups of the first connecting rod (4) are respectively hinged to the two sides of the front part of the seat cushion frame (3), and the lower ends of the two groups of the first connecting rod (4) are respectively hinged to the corresponding upper rails (11).

7. The front seat that can be folded forward according to claim 5, characterized in that: The second driving assembly (5) is arranged on the inner side of one set of upper rails (11), the base of the motor (52) is rotatably mounted on the inner front part of the upper rail (11), and the lead screw (53) extends backward along the length direction of the upper rail (11).

8. The front seat that can be folded forward according to claim 5, characterized in that: A supporting cross bar (31) is provided at the rear of the seat cushion frame (3), and both ends of the supporting cross bar (31) are connected to adapters (6) extending downward, and the pin shaft (b) is assembled at the lower part of the adapter (6).

9. The front seat that can be folded forward according to claim 1, characterized in that: The first connecting rod (4) is arranged obliquely between the front part of the seat cushion frame (3) and the upper slide rail module (1a).

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